DESC:FORM – 2

THE PATENTS ACT, 1970
(39 OF 1970)
AND
THE PATENT RULES, 2003

COMPLETE SPECIFICATION
(See Section 10, rule 13)

“HYDRAULIC SUCKER ROD PUMPING (HSRP) UNIT”

OPTUS HYDROTECH PRIVATE LIMITED
An Indian startup company recognized under the
Department for Promotion of Industry and Internal Trade,
Having address at
Plot No 4, Mahavir Industrial Area,
Vill. Piplana, Kotda-Sangani,
Rajkot-360030, India.

The following specification particularly describes the invention and the manner in which it is performed:
FIELD OF THE PRESENT INVENTION

The present invention relates to the field of oil and gas and in particular, the present invention to a hydraulic sucker rod pumping unit (HSRP) to extract fluid, especially oil from a great depth using a hydraulic system.

BACKGROUND OF THE PRESENT INVENTION

In the oil producing industry, sucker-rod pumping is the most widely used method for artificially lifting fluid from the well. Whereby the content is extracted to obtain fluid containing oil, gas, water, and earth materials like dirt/sand, etc. These components are then separated to make said products (oil and gas) compatible for further processing like refining.
It is pertinent to note that the oil-rich area, under the earth's surface (called a reservoir), is spread over a large area in square kilometers. So, a number of wells are required to be drilled over this area and offshore platforms are built on groups of such wells to maximize production of oil. Amongst said offshore platforms, one of the platforms is usually a processing platform, where the contents from all wells are collected and processed under the supervision of men. The rest of the platforms work in automated mode and generally do not require continuous supervision and hence remain unmanned. All unmanned platforms are interconnected with the said manned platform through subsea pipelines (generally at sea bed level) like well fluid lines, water injection lines, gas injection lines, and set forth.

In oil and gas production, various conventional sucker rod pumping units are most commonly used as pumping units. However, these conventional units have lots of drawbacks including manual handling of said devices causing high installation time of 1-2 days, bulky and huge transportation services due to the huge weight load of said devices having heavy structures along with shorter stroke length. Moreover, these conventional units are slow in mobilizing and demobilizing products with the requirement of manpower and high operating and production costs.

PRIOR ARTS AND THEIR DISADVANTAGES

The Indian patent application number 201711018280 discloses a production enhancement apparatus for a sucker rod pump. The apparatus comprises a cylinder configured to receive gas from annulus of the wellbore. A flow line is dedicated to the annulus of the wellbore. The cylinder receives suction from the annulus of the wellbore and transfers any built-up pressure to the dedicated flow line, thereby reducing the built-up pressure of the annulus of the wellbore and enhancing the production of the oil being pumped out by the sucker rod pump.

The drawback of the above-mentioned prior art is that it takes more time to install and also fails to provide any technical feature for adjusting the height of the pumping unit structure. In addition to that, said prior art clearly fails to suggest an invention that is lighter in weight, monitors the production at remote access for changing the stroke length, opens on one side, withstands maximum wind force, creates less noise during the operation, the requirement of minimal manpower and reduces the power of the invention.
Another Russian patent application number RU2001124641A discloses about a device designed for use in positive displacement hydraulic machines and drives including hydraulic or pneumatic means used for lifting fluid from depth. Said hydraulic drive of the downhole pump has working cylinder divided by piston into piston space, rod space and pneumatic or hydropneumatics counter balancing system having tandem cylinder, reservoir connected with rod space of working cylinder. In addition to that, said piston space and rod space of working cylinder are interconnected by pipeline with shutoff cock to form closed hydraulic circuit. When carrying out servicing and repair of underground equipment, shutoff cock is opened and piston space and rod space of working cylinder are connected to form closed hydraulic circuit, and piston of working cylinder moves downwards loosening the tension of string of sucker rods. The device results in improved reliability and safety of plant, increased economy.
However, said prior art fails to disclose about facilitating automatic sucker rod pumping unit that can be very helpful for monitoring and controlling the extraction of oil fluid from the sea bed. In addition to that, said prior art also fails to provide a wireless operating system having easy remote access in the production area, and said prior art also fails to adjust the stroke length of the invention. Furthermore, said prior art clearly fails to suggest an invention that is lighter in weight, requires less time to install the invention, opens on one side, withstands maximum wind force, creates less noise during the operation, requirement of minimal manpower, and reduces the power of the invention. moreover, said prior at fails to mention any technical feature for adjusting the height of the pumping unit structure.
DISADVANTAGES OF THE PRIOR ART:

The existing sucker rod pumping unit for extracting oil from the wells suffers from all or at least any of the below-mentioned disadvantages:
• All of the prior art fails to provide a hydraulic sucker rod pumping unit (HSRP) that efficiently extracts the oil from the well.
• All of the prior art fails to provide a hydraulic sucker rod pumping unit (HSRP) which monitors or controls the extraction of oil fluid through a wireless operating system.
• All of the prior art fails to provide a hydraulic sucker rod pumping unit (HSRP) which has remote access to adjust the change of stroke length.
• All of the prior art fails to disclose a hydraulic sucker rod pumping unit (HSRP) that is open on one side and able to withstand maximum wind force.
• All of the prior art fails to disclose a hydraulic sucker rod pumping unit (HSRP) that is very lighter in weight.
• All of the prior art fails to suggest a hydraulic sucker rod pumping unit (HSRP) that adjusts the height of the pumping unit structure by positioning the leveling jack at the bottom.
• All of the prior art fails to suggest a hydraulic sucker rod pumping unit (HSRP) that is power-saving.
• All of the prior art fails to disclose a hydraulic sucker rod pumping unit (HSRP) that has low noise.
• All of the prior art fails to disclose a hydraulic sucker rod pumping unit (HSRP) that takes less time for installation.
• All of the prior art fails to disclose a hydraulic sucker rod pumping unit that monitors the production remotely.
• All of the prior art fails to disclose a hydraulic sucker rod pumping unit (HSRP) that requires minimal manpower.
Thus, there is an unmet need to develop a hydraulic sucker rod pumping unit (HSRP) that extracts the fluid especially oil from great depth (well) and obviates the problem of the prior art.

OBJECTS OF THE PRESENT INVENTION:

The main object of the present invention is to provide a hydraulic sucker rod pumping (HSRP) unit.
Another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that extracts the oil from the well.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) with a wireless operating system.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that has remote access to change the stroke length.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that is able to provide a longer stroke length.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that is open on one side and able to withstand maximum wind force.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that is very light in weight.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that adjusts the height of the pumping unit structure by positioning the leveling jack at the bottom.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that is power-saving.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that creates less noise.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that monitors the production remotely.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that takes only 3-4 hours for installation of the whole unit.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that requires minimal manpower.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that is cost-efficient.
Yet another object of the present invention is to provide a hydraulic sucker rod pumping unit (HSRP) that obviates the disadvantages of the prior art.
BRIEF DESCRIPTION OF DRAWING:
Various other objects, features, and attendant advantages of the present invention will become fully appreciated as the same becomes better understood when considered in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the several views, and wherein:

Fig. 1 : Shows the schematic working diagram of the hydraulic sucker rod pumping unit (HSRP) (type 1)
Fig. 2 : Shows the configuration of the cooling system (8) with their interconnections
Fig. 3 : Shows the configuration of manifold block (29) present in the hydraulic sucker rod pumping unit (HSRP) with their interconnections
Meaning of reference numeral of the said hydraulic sucker rod pumping unit (HSRP).

1 : Flow control valve
2 : Upside pressure switch
3 : Downside pressure relief valve
4 : Downside pressure switch
5 : Electric motor and hydraulic pump
6 : Pressure relief valve
7 : Fine filter
8 : Cooling system
9 : Electric control panel
10 : Double-acting hydraulic cylinder
11 : Variable frequency drive
12 : Human-machine interface (HMI) display
13 : One or more limit sensors
14 : Hydraulic tank
15 : Upside Solenoid valve
16 : Downside Solenoid valve
17 : Downside unloading solenoid valve
18 : Upside pressure line
19 : Inlet line
20 : Return tank line
21 : Downside pressure line
22 : Single-direction electric motor and hydraulic pump for piloting
23 : Piloting system pressure relief valve
24 : Main pressure gauge
25 : Pilot pressure gauge
26 : Return line safety valve
27.1 : Fan 1
27.2 : Motor 1
28.1 : Fan 2
28.2 : Motor 2
29 : Manifold block
30 : Radiator 1
31 : Radiator 2
32 : Outlet line
33 : Common line
L1-L12 : Line 1- Line 12

SUMMARY OF THE INVENTION
The present invention provides a hydraulic sucker rod pumping unit (HSRP) which is used for lifting and extracting fluid from great depth using a hydraulic system by not only enabling upside and downside hydraulic movement in the hydraulic cylinder but also adjusting the height of the pumping unit, which is an additional feature that is used in all different-sized wells and does not concern the working of the pumping unit. Further, the present invention lifts the oil using a hydraulic cylinder mounted on the pumping unit structure that is maintained by a wireless operating system. Furthermore, the present invention facilitates fluid or oil communication in upside and downside manner through triggering instructions sent through manifold block (29) connected with electric control panel (9) and limit sensors (13) into double-acting hydraulic cylinders (10), thereby achieving a larger stroke length for oil extraction. Moreover, said present invention monitors the production area at remote access and evaluates the operation in real time using an IoT (Internet of Things) monitoring facility, thereby enabling an effective oil production per stroke length with easy worldwide accessibility to the user in the digital devices.
DETAILED DESCRIPTION OF THE INVENTION

The following description is presented to enable any person skilled in the art to make and use the invention. It is provided in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and features disclosed herein.
It is to be understood that the term “comprising” or “comprises” used in the specification and claims refers to the element of the invention which comprises X, Y, and Z, which means that the invention might have other elements in addition to X, Y, and Z. For example, their invention could include A, B, and/or C as long as it also has X, Y, and Z.
The present invention provides a hydraulic sucker rod pumping unit (HSRP) which is used for lifting fluid especially oil from great depth using a hydraulic system. More particularly, the present invention of the hydraulic sucker rod pumping unit (HSRP) extracts the oil from the well by not only enabling upside and downside hydraulic movement in the hydraulic cylinder but also adjusting the height of the pumping unit, which is an additional feature that is used in all different-sized wells and does not concern the working of the pumping unit. Further, the present invention lifts the oil using a hydraulic cylinder mounted on the pumping unit structure which is maintained by a wireless operating system. In addition to that, the hydraulic sucker rod pumping unit (HSRP) facilitates double-acting hydraulic cylinders to adjust their stroke length with the help of the human-machine interface (HMI) display for maintaining the access remotely, thereby providing a larger stroke length for oil extraction. Here, stroke length refers to the maximum adjustable length that a hydraulic cylinder may lift up to; wherein said stroke length of the hydraulic cylinder ranges from 18 inches to 314 inches.
As a result, the hydraulic sucker rod pumping unit (HSRP) has a longer stroke length than conventional units, which has several advantages over them. These advantages include higher production rates, less wear and tear on bottom hole equipment, decreased fatigue in the rod string, less tubing wear in both vertical and directional wells, and lower occurrences of bottom hole pump gas locking.
Moreover, the hydraulic sucker rod pumping unit (HSRP) provides a structural capacity of 40,000 lbs, which may be extended by altering the thickness of the raw material, and the lift capacity present varies upon the model having possibilities of weight including 10-ton, 12-ton, 14-ton, 16-ton, and 18-ton. Thus, the total weight of the structure is 3.5 tons, which is further increased if its structure load capacity is increased accordingly.
In accordance with the embodiments of the present invention, physical parameters related to hydraulic sucker rod pumping unit (HSRP) are enlisted in Table 1:
Table 1: Physical parameters of hydraulic sucker rod pumping unit (HSRP)
Sr. no. Parameters Present invention
1. Structure C-type hydraulic pumping structure
2. Structural load capacity approximately 40,000 lbs. that may be increased as per the user’s requirement
3. Lift capacity approximately ranging from 10 to 18 tons that may be increased as per the user’s requirement
4. Stroke length approximately ranging from 18 to 314 inches may be increased as per the user’s requirement
5. Stroke per length Up to 6 that may be increased as per the user’s specification and power usage
In addition to that, the hydraulic sucker rod pumping unit (HSRP) monitors the production area at remote access through an IoT (Internet of Things) monitoring facility, which is worldwide accessible to the user through a digital device having an Android or iOS application or website. Here, the user accesses the machine while monitoring and controlling all its parameters from anywhere, thereby providing an effective real-time dyna graph that defines the oil production per stroke and provides easy worldwide accessibility to the user in digital devices. Moreover, the hydraulic sucker rod pumping unit (HSRP) provides power saving facility to the invention through mediums like battery backup-ed solar panels or normal power supply.
Now, according to the embodiments shown in Figures 1 and 2 of the present invention, a hydraulic sucker rod pumping unit (HSRP) used for lifting fluid comprises of:
• an electric control panel (9),
• an upside pressure switch (2),
• a downside pressure switch (4),
• an electric motor and hydraulic pump (5),
• one or more limit sensors (13),
• an upside solenoid valve (15),
• a downside solenoid valve (16),
• a hydraulic tank (14),
• a double-acting hydraulic cylinder (10),
• a downside pressure line (21),
• a downside pressure relief valve (3),
• a single-direction electric motor and hydraulic pump for piloting (22),
• an upside pressure line (18),
• a flow control valve (1),
• a cooling system (8),
• a fine filter (7), and
• a manifold block (29).
Said electric control panel (9) is connected to the upside and downside pressure switches (2, 4), the electric motor and hydraulic pump (5), and the limit sensors (13) along with upside and downside solenoid valves (15, 16); wherein said electric control panel (9) comprises of a variable frequency drive (11) configured to send triggering signal to the pump (5), limit sensors (13) and switches (2, 4) respectively and a human-machine interface (HMI) display (12) configured to display the instructed commands for output and measurements for input.
Continue referring to Figure 1, said limit sensors (13) are located at the lateral bottom side of the hydraulic cylinder (10), and configured for providing triggering instructions to the hydraulic cylinder (10) having a piston to adjust the stroke length through the electric control panel (9) and reversing the stroke cycle between specific lengths by placing one or more limit sensors (13) at specific lengths, thereby achieving longer stroke length.
The system further includes the electric motor and hydraulic pump (5) connected to said variable frequency drive (11) of the electric control panel (9), operatively configured to receive triggering signals from the said electric control panel (9) for rotating in a single direction and generating high pressure within the hydraulic tank (14).
Further, a directional valve of the manifold block (29) is connected with the electric control panel (9) to facilitate fluid communication with the double-acting hydraulic cylinder (10) through the downside and upside pressure lines (21 and 18), respectively. Said configurations enable the creation of up and down strokes by the piston of the double-acting hydraulic cylinder (10).
It is to be understood that the term "fluid" in this context refers to a non-compressible liquid used for transferring power within hydraulic machinery and equipment.
Referring Figure 2, said cooling system (8) is operatively configured at the downstream corner of the said hydraulic tank (14). The cooling system (8) comprises of an inlet line (19), an outlet line (32), a radiator 1 (30) having a fan 1 (27.1) attached through a motor 1 (27.2), and a radiator 2 (31) having a fan 2 (28.1) attached through a motor 2 (28.2); wherein said radiator 1 and radiator 2 (30, 31) is connected to each other through a common line (33). Said cooling system (8) cools down the fluid/oil coming from said hydraulic tank (14) and upside pressure line (18) through the inlet line (19) and returned back to the fine filter (7) through the outlet line (32); wherein, said fine filter (7) filter out the particles present in cooled fluid passed through the cooling system.
Now, said fine filter (7) is fluidly connected to the hydraulic tank (7) through the return tank line (20) configured to transmit the cooled and filtered fluid to said hydraulic tank (14) through the return tank line (20).
According to embodiments shown in Figures 1 and 3, said manifold block (29) comprises of a pressure relief valve (6), a downside unloading solenoid valve (17), a main pressure gauge (24), a pilot pressure gauge (25), a piloting system pressure relief valve (23), a return line safety valve (26), and plurality of lines (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12).
Said hydraulic fluid/oil passes from the electric motor and hydraulic pump (5) through the line (L7) interconnected with the line (L3) where said pressure relief valve (6) and the downside unloading solenoid valve (17) are installed, thereby, controls the oil flow or pressure in all directions. The fluid then gets into the line (L4) which is fluidly interconnected with the line (L8). Said fluid is entered into the directional valve which consists of an upside solenoid valve (15), and a downside solenoid valve (16) and configured to provide direction to the fluid whether to go into the valve (15) or valve (16) to facilitate upward and downward movement respectively.
As per the triggering signal received from the limit sensors (13) through the control panel (9) for upside oil flow movement under the operation of the upside solenoid valve (15), said hydraulic fluid/oil enters in the line (L6) which is interconnected with the lines (L10, L2), and flows into the upside pressure line (18) for lifting the piston of the hydraulic cylinder (10) and vice versa.
Similarly, when the downside solenoid valve (16) is activated by the triggering signal received from the limit sensors (13) through the control panel (9) for downside oil flow movement, said hydraulic fluid/oil is directed into the line (L5) which is interconnected with lines (L9, L1) and flows into the downside pressure line (21) for dropping down the piston of the hydraulic cylinder (10).
Now, when either of the solenoid valves (15, 16) are in the working medium, said hydraulic fluid/oil from the double-acting hydraulic cylinder (10) is transferred back into the hydraulic tank (14) through similar series of lines (L1 to L10), thereby helping the mechanism of the directional pump to direct the flow of the fluid/oil into the line (L5) for upside oil flow movement or the line (L6) for downside oil flow movement.
Simultaneously, said lines (L9, L10) are installed with the pressure gauges (24, 25) which are configured to display the pressure of the fluid/oil in said lines (L9, L10). Through the single-direction motor and pump for piloting (22), said fluid/oil enters into lines (L11, L12) which is connected with the pilot pressure relief valve (23) and the pilot pressure gauge (25), thereby, facilitating accurate control and display the pressure of the flowing fluid from the pump (22) as per desired by the machine’s usability.
Said return line safety valve (26) connected between the pressure relief valve (3) and the fine filter (7) configured to bypass the high-pressurized fluid/oil directly into the hydraulic oil tank (14), thereby providing safety to the radiator 1 and radiator 2 (30, 31) by avoiding the blockage of the fluid/oil in said radiator 1 and radiator 2 (30, 31), which may burst due to high oil pressure.
Here, two similar cases are taken in consideration for providing the hydraulic operation in an up-stoke and down-stroke manner.
CASE-1:
For the first case of hydraulic movement in a downside manner, said electric motor and hydraulic pump (5) is connected to the variable frequency drive (11) of the electric control panel (9) wherein said electric motor and hydraulic pump (5) receives triggering signal from said variable frequency drive (11) for rotating in one direction and generating high pressure in the oil present in the hydraulic tank (14) and later on, transferring said high pressurized hydraulic fluid/oil is passed into the single direction electric motor and hydraulic pump for piloting (22) coupled with downside solenoid valve (16) and later on, said hydraulic oil is passed into double acting hydraulic cylinder (10) through downside pressure line (21) fluidly connected with downside pressure relief valve (3) and pressure switch (4) in between.
Here, said downside pressure relief valve (3) controls the pressure manually to avoid accidents, and said pressure switch (4) automatically measures and controls the high pressure through the electric control panel (9) connection.
In addition to that, said double-acting hydraulic cylinder (10) is presented in a dual-side arrangement in which one side is a cylindrical barrel side and another side is a cylindrical rod side, and in between them, the piston is attached in which the polish cylindrical rod is connected to said piston, creating movement after coming out of the rod side, and pushing the oil from the hydraulic tank (14) in an upside-down and downside-up manner.
As per the triggering signal received from the limit sensors (13) through the electric control panel (9) for downside oil flow movement under the operation of the downside solenoid valve (15), said hydraulic fluid/oil enters in the line (L5) which is interconnected with the lines (L9, L1), and flows into the downside pressure line (21) for dropping the piston of the hydraulic cylinder (10) in the working medium and later the hydraulic oil enters back to the hydraulic tank (14) after being passed to cooling system (8).
Here, said hydraulic oil passing from the downside pressure line (21) enters the cooling system (8) which has a dual set of radiators 1 and 2 (30, 31) connected with each other through the common line (33) with a dual set of fans 1 and 2 (27.1, 28.1) attached through a dual set of motors 1 and 2 (37.2, 28.2) and cools down the fluid/oil coming from said hydraulic tank (14) and the upside pressure line (18) through the inlet line (19) and returns back to the fine filter (7) through the outlet line (32) for filtering out particles present in the cooled fluid passed through the cooling system before entering the hydraulic tank (14).
CASE 2:
Simultaneously, a similar case for upside movement is observed for transferring the hydraulic oil present in said hydraulic tank (14) through triggered signal received from the electric control panel (9) in a particular direction through upside solenoid valve (15) present in manifold block (29) into double acting hydraulic cylinder (10) through upside pressure line (18) fluidly connected with upside pressure switch (2) and flow control valve (1) in between.
Here, said upside pressure switch (2) automatically measures and controls obtained pressure through the electric control panel (9) connection, and said flow control valve (1) controls the speed of the hydraulic cylinder (10) in a downside manner when the oil is back to said hydraulic tank (14) fluidly connected to said upside pressure line (18).
After the activation of triggered signal received from the limit sensors (13) connected to electric control panel (9) for upside oil flow movement operated under the upside solenoid valve (15), said hydraulic oil enters in line (L6) which is interconnected with the lines (L10, L2), and flows into the upside pressure line (18) for lifting the piston of the hydraulic cylinder (10) in the working medium and later the hydraulic oil enters back to the hydraulic tank (14) after being passed to cooling system (8).
Here, said hydraulic oil passing from the upside pressure line (18) enters the cooling system (8) which has a dual set of radiators 1 and 2 (30, 31) connected with each other through the common line (33) with a dual set of fans 1 and 2 (27.1, 28.1) attached through a dual set of motors 1 and 2 (37.2, 28.2) and cools down the fluid/oil coming from said hydraulic tank (14) through the inlet line (19) and returns back to the fine filter (7) through the outlet line (32) for filtering out particles present in the cooled fluid passed through the cooling system before entering the hydraulic tank (14).
WORKING OF THE PRESENT INVENTION
The present invention provides a hydraulic sucker rod pumping unit (HSRP) which is used for lifting fluid from a great depth using a hydraulic system. More particularly, said the invention of hydraulic sucker rod pumping unit (HSRP) extracts the oil from the well by not only enabling upside and downside hydraulic movement in the hydraulic cylinder but also adjusting the height of the pumping unit, which is an additional feature that is used in all different-sized wells and does not concern the working of the pumping unit. Further, the present invention lifts the oil using a hydraulic cylinder mounted on the pumping unit structure which is maintained by a wireless operating system.
Referring to Figure 1-3 of the present invention, the working steps are as under:
The electric motor and hydraulic pump (5) connected to the variable frequency drive (11) present in the electric control panel (9) receives triggering signal from said electric panel (9) for rotating in one particular direction and generating high pressure in the oil (high pressurized hydraulic oil) present in the hydraulic tank (14) and said high pressurized hydraulic oil is then passed to the single-direction electric motor and hydraulic pump for piloting (22) coupled with the downside solenoid valve (16) present in the manifold block (29) to the double-acting hydraulic cylinder (10) through the downside pressure line (21) fluidly connected with the downside pressure relief valve (3) and pressure switch (4) in between.
As per the triggering signal received from the limit sensors (13) through the electric control panel (9) for downside oil flow movement under the operation of the downside solenoid valve (15), said hydraulic fluid/oil enters in the line (L5) which is interconnected with the lines (L9, L1), and flows into the downside pressure line (21) for dropping the piston of the hydraulic cylinder (10) in the working medium and later the hydraulic oil enters back to the hydraulic tank (14) after being passed to cooling system (8).
Here, said hydraulic oil passing from the downside pressure line (21) enters the cooling system (8) which has a dual set of radiators 1 and 2 (30, 31) connected with each other through the common line (33) with a dual set of fans 1 and 2 (27.1, 28.1) attached through a dual set of motors 1 and 2 (37.2, 28.2) and cools down the fluid/oil coming from said hydraulic tank (14) and the upside pressure line (18) through the inlet line (19) and returns back to the fine filter (7) through the outlet line (32) for filtering out particles present in the cooled fluid passed through the cooling system before entering the hydraulic tank (14).
Similar principle for upside movement is observed for transferring the hydraulic oil present in said hydraulic tank (14) through triggered signal received from the electric control panel (9) in a particular direction through upside solenoid valve (15) present in manifold block (29) into double acting hydraulic cylinder (10) through upside pressure line (18) fluidly connected with upside pressure switch (2) and flow control valve (1) in between.
After the activation of triggered signal received from the limit sensors (13) connected to electric control panel (9) for upside oil flow movement operated under the upside solenoid valve (15), said hydraulic oil enters in line (L6) which is interconnected with the lines (L10, L2), and flows into the upside pressure line (18) for lifting the piston of the hydraulic cylinder (10) in the working medium and later the hydraulic oil enters back to the hydraulic tank (14) after being passed to cooling system (8).
Here, said hydraulic oil passing from the upside pressure line (18) enters the cooling system (8) which has a dual set of radiators 1 and 2 (30, 31) connected with each other through the common line (33) with a dual set of fans 1 and 2 (27.1, 28.1) attached through a dual set of motors 1 and 2 (37.2, 28.2) and cools down the fluid/oil coming from said hydraulic tank (14) through the inlet line (19) and returns back to the fine filter (7) through the outlet line (32) for filtering out particles present in the cooled fluid passed through the cooling system before entering the hydraulic tank (14).
After the extraction of oil from working medium of well through double acting hydraulic cylinder (10) attached to polish rod, said oil is stored in nearby storage tanks or nearby storage facility area through various underground pipeline connection in the oilfield.
All the instructed output commands and input measurements are connected to programable electric control panel (9) which is displayed and controlled through human machine interface (HMI) display (12) which operates the whole electric control panel (9). In addition to that, limit sensors located at side end of said double acting hydraulic cylinder (10) provides stroke length and commanding instructions through control panel (9) for stopping the hydraulic tank (14) in generating pressure and reversing the stroke cycle by placing the limit sensors (13) at specific lengths. Here, all the components works together in working medium and provides an efficient and longer stroke length.
WORKING EXAMPLES/ TEST DATA OF THE INVENTION:
Table 1:

Sr.no Time for autocycle Daily stroke (inches) Total stroke (inches) Stroke per min Auto mode speed (%) Motor Freq. (Hz) Motor current (in amp) Motor speed (in rpm)
in
sec in mins in hr.
1. 45 38 13 1878 43985 2.2 45.0 22.7 55.1 680
2. 14 40 12 1747 43854 2.2 45.0 22.4 27.5 664
3. 43 41 11 1614 43721 2.3 45.0 24.4 29.0 733
4. 12 43 10 1481 43588 2.3 45.0 22.7 56.2 680
5. 41 44 9 1345 43452 2.4 45.0 22.4 52.7 673
6. 9 46 8 1212 43319 2.3 45.0 22.3 42.9 669
7. 39 47 7 1077 43184 2.3 45.0 23.8 28.0 715
8. 9 49 6 943 43050 2.2 45.0 22.3 49.3 670
9. 37 50 5 808 42915 2.4 45.0 22.8 56.7 684
10. 6 52 4 673 42780 2.4 45.0 22.8 27.3 685
11. 36 53 3 536 42643 2.3 45.0 23.0 38.8 691
12. 4 55 2 402 42509 2.3 45.0 22.7 57.3 682
13. 33 56 1 265 42372 2.4 45.0 22.8 54.1 683
14. 2 58 0 134 42241 2.3 45.0 22.7 55.7 680
15. 15 7 22 3015 42106 2.2 45.0 22.8 56.8 682
16. 46 8 21 2882 41973 2.2 45.0 22.4 54.3 671
17. 15 10 20 2749 41840 2.2 45.0 22.3 52.8 670
18. 44 11 19 2617 41708 2.0 45.0 22.8 59.1 683
19. 13 13 18 2486 41577 2.3 45.0 22.7 60.2 682
20. 42 14 17 2354 41445 2.2 45.0 22.5 39.8 676
21. 11 16 16 2220 41311 2.3 45.0 22.8 58.9 683
22. 40 17 15 2087 41178 2.3 45.0 23.0 27.5 691
23. 9 19 14 1954 41045 2.1 45.0 22.7 55.6 680
24. 39 20 13 1826 40917 2.1 45.0 22.2 46.7 666
25. 7 22 12 1700 40791 2.0 45.0 22.7 35.1 682
26. 49 41 11 1614 40705 2.2 45.0 22.7 56.0 680
27. 19 43 10 1488 40579 2.2 45.0 25.0 37.9 751
28. 48 44 9 1355 40446 2.2 45.0 22.7 27.4 682
29. 17 46 8 1221 40312 2.3 45.0 22.7 54.6 681
30. 46 47 7 1087 40178 2.2 45.0 22.7 27.4 682
31. 14 49 6 952 40043 2.2 45.0 22.8 27.4 683
32. 44 50 5 817 39908 2.4 45.0 22.8 27.4 683
33. 13 52 4 681 39772 2.2 45.0 22.3 44.1 670
34. 41 53 3 545 39636 2.3 45.0 26.2 32.6 778
35. 10 55 2 408 39499 2.4 45.0 25.9 44.9 777
36. 39 56 1 272 39363 2.3 45.0 22.7 54.6 682
37. 8 58 0 135 39226 2.4 45.0 22.8 54.6 683
38. 3 19 22 3205 39090 2.4 45.0 22.8 27.3 683
39. 31 20 21 3068 38953 2.4 45.0 22.8 54.8 683
40. 1 22 20 2933 38818 2.3 45.0 22.8 57.1 683
41 29 23 19 2799 38684 2.3 45.0 22.8 54.1 683
42. 58 24 18 2662 38547 2.4 45.0 22.7 54.7 682
43. 28 26 17 2525 38410 2.4 45.0 22.7 55.6 681
44. 56 27 16 2388 38273 2.3 45.0 22.8 55.2 683
45. 24 29 15 2250 38135 2.4 45.0 22.7 52.3 682
46. 53 30 14 2109 37994 2.5 50.0 25.2 52.8 756
47. 22 32 13 1965 37850 2.4 50.0 26.6 28.4 799
48. 50 33 12 1822 37707 2.4 50.0 25.2 27.5 757
49. 54 41 11 1696 37581 2.4 50.0 24.8 43.6 743
50. 23 43 10 1555 37440 2.4 50.0 25.2 52.1 753

An embodiments referring to Table 1, states the evaluative table of a hydraulic sucker rod pumping unit (HSRP) depending on applied parameters including time required by the invention for autocycle (in seconds/minutes/hour), daily stroke length (in inches), total stroke length (in inches), stroke per minute, auto mode speed (in %), motor frequency (in Hz), motor current (in amp) and motor speed (in rpm) is observed that facilitates high oil extraction through effective automation selective dynamic stroke length in real time using IoT advance system along with automatic control system and actuated panel mode, thereby providing an effective real-time dyna graph that defines the oil production per stroke with easy worldwide accessibility to the user.

COMPARATIVE ANALYSIS OF PRIOR ART AND PRESENT INVENTION:

Parameters Prior Art (Conventional Sucker Rod
Pumping Unit) Present Invention (Hydraulic sucker rod pumping unit)
Installation Time 1-2 Days Only 3-4 hrs.
Weight during transportation Bulky in size Easy and smaller in size
Variable Stroke Manual requirement Automatically variable through actuated panel mode
Mobilization and Demobilization Slow response Fast response
Production No monitoring facility Online monitoring facility through IoT system
Operating Cost High Low; decreased up to 55 to 60%
Maintenance
Cost High Low
Manpower requirement Maximum Minimum

ADVANTAGES OF THE PRESENT INVENTION:
There are many advantages of the present invention over prior art:
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that can extract the oil from the well.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) with the wireless operating system.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that has remote access to change the stroke length.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that is able to provide the longer stroke length.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that is open on one side and able to withstand in maximum wind force.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that is very light in weight.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that adjusts the height of the pumping unit structure by positioning the leveling jack at the bottom.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that can monitor the production remotely.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that is power saving.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that creates less noise which is good for workers.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that takes only 3-4 hours for installation of whole unit.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that requires minimal manpower.
• The present invention provides a hydraulic sucker rod pumping unit (HSRP) that is cost efficient.
,CLAIMS:We claim,
1. A hydraulic sucker rod pumping unit (HSRP) for lifting and extracting fluid from the great depth of wells comprises of
- an electric control panel (9), an upside pressure switch (2), a downside pressure switch (4), an electric motor and hydraulic pump (5), one or more limit sensors (13), an upside solenoid valve (15), a downside solenoid valve (16), a hydraulic tank (14), a double-acting hydraulic cylinder (10), a downside pressure line (21), a downside pressure relief valve (3), a single-direction electric motor and hydraulic pump for piloting (22), an upside pressure line (18), a flow control valve (1), a cooling system (8), and a manifold block (29);
wherein,
- said electric control panel (9) is connected to the upside and downside pressure switches (2, 4), the electric motor and hydraulic pump (5), and the limit sensors (13) along with upside and downside solenoid valves (15, 16);
- said limit sensors (13) are configured for providing triggering instructions to the hydraulic cylinder (10) having a piston to adjust the stroke length through the electric control panel (9) and reversing the stroke cycle between specific lengths by placing one or more limit sensors (13) at specific lengths;
- said cooling system (8) is operatively configured at the downstream corner of the said hydraulic tank (14);
- said fine filter (7) is fluidly connected to the hydraulic tank (7) through the return tank line (20) configured to transmit the cooled and filtered fluid to said hydraulic tank (14) through the return tank line (20);
- said manifold block (29) comprises of a pressure relief valve (6), a downside unloading solenoid valve (17), a main pressure gauge (24), a pilot pressure gauge (25), a piloting system pressure relief valve (23), a return line safety valve (26), and plurality of lines (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12); wherein,
said electric motor and hydraulic pump (5) is fluidly connected through the line (L7) interconnected with the line (L3) where said pressure relief valve (6) and the downside unloading solenoid valve (17) are installed, and get into the line (L4) which is fluidly interconnected with the line (L8),
said line (L6) is interconnected with the lines (L10, L2), and flows into the upside pressure line (18) for lifting the piston of the hydraulic cylinder (10) and vice versa, due to triggering signal received from the limit sensors (13),
said line (L5) is interconnected with lines (L9, L1) and flows into the downside pressure line (21) for dropping down the piston of the hydraulic cylinder (10), and
said lines (L9, L10) are installed with the pressure gauges (24, 25) configured to display the pressure of the fluid in said lines (L9, L10).
2. The hydraulic sucker rod pumping unit (HSRP) as claimed in claim 1, wherein said return line safety valve (26) connected between the pressure relief valve (3) and the fine filter (7) configured to bypass the high-pressurized fluid directly into the hydraulic oil tank (14) configured to provide safety to the radiator 1 and radiator 2 (30, 31) by avoiding the blockage of the fluid in said radiator 1 and radiator 2 (30, 31).
3. The hydraulic sucker rod pumping unit (HSRP) as claimed in claim 1, wherein said electric control panel (9) comprises of a variable frequency drive (11) configured to send triggering signal to the pump (5), limit sensors (13) and switches (2, 4) respectively and a human-machine interface (HMI) display (12) configured to display the instructed commands for output and measurements for input.
4. The hydraulic sucker rod pumping unit (HSRP) as claimed in claim 1, wherein said electric motor and hydraulic pump (5) is connected to said variable frequency drive (11) of the electric control panel (9), operatively configured to receive triggering signals from the said electric control panel (9) for rotating in a single direction and generating high pressure within the hydraulic tank (14).
5. The hydraulic sucker rod pumping unit (HSRP) as claimed in claims 1 and 4, wherein said configurations enable the creation of up and down strokes by the piston of the double-acting hydraulic cylinder (10).
6. The hydraulic sucker rod pumping unit (HSRP) as claimed in claim 1, wherein said cooling system comprises of an inlet line (19), an outlet line (32), a radiator 1 (30) having a fan 1 (27.1) attached through a motor 1 (27.2), and a radiator 2 (31) having a fan 2 (28.1) attached through a motor 2 (28.2); wherein said radiator 1 and radiator 2 (30, 31) is connected to each other through a common line (33).
7. The hydraulic sucker rod pumping unit (HSRP) as claimed in claims 1 and 6, wherein said cooling system (8) cools down the fluid/oil coming from said hydraulic tank (14) and upside pressure line (18) through the inlet line (19) and returned back to the fine filter (7) through the outlet line (32); wherein, said fine filter (7) filter out the particles present in cooled fluid passed through the cooling system.
8. The hydraulic sucker rod pumping unit (HSRP) as claimed in claim 1, wherein a directional valve of the manifold block (29) is connected with the electric control panel (9) to facilitate fluid communication with the double-acting hydraulic cylinder (10) through the downside and upside pressure lines (21 and 18), respectively.
9. The hydraulic sucker rod pumping unit (HSRP) as claimed in claims 1 and 8, wherein said fluid is entered into the directional valve which consists of an upside solenoid valve (15), and a downside solenoid valve (16) and configured to provide direction to the fluid whether to go into the valve (15) or valve (16) to facilitate upward and downward movement respectively.
10. The hydraulic sucker rod pumping unit (HSRP) as claimed in claim 1, wherein said downside solenoid valve (16) is activated by the triggering signal received from the limit sensors (13) through the control panel (9) for downside fluid flow movement.

Dated this 17th day of July, 2024.

GOPI JATIN TRIVEDI
Authorized agent of the applicant
IN/PA- 993

To,
The Controller of Patent
The Patent Office,
At Mumbai.