FILED OF THE INVENTION
The present invention relates to a Tubing spool with multiple radial exit bores for
control lines of sub surface safety valves injecting of water and chemicals.
BACKGROUND OF THE INVENTION
The oil field equipment namely Tubing Spool generally comprises a spool body
with a top and bottom portion which is flanged with studded outlets. The tubing
spool is provided with anchor screws on the top flange for housing a tubing
hanger and one or two control lines.
Tubing Spools are mainly designed for sealing the upper most casing and for
multiple string completions. Tubing Spool has a straight bore with 45 deg
shoulder. Tubing Spools accept interchangeable bit pilots permitting usage of
smaller casing sizes. Anchor screws are provided to secure the tubing hanger
after the tubing is landed and to actuate the tubing hanger packing. Tubing
Spool top flange has provisions for bolts, anchor screw outlets and control line
exits.
At present, all Tubing Spools particularly the tubing spools of size 11 inch and
above are provided with two nos of control line exit ports apart from bolt holes
and anchor screw holes for housing anchor screws for energizing the seals of
tubing hanger. Accordingly, the prior art tubing spools do not have additional
ports for down hole operations during exploration. Thus this invention is done for
having six ports for various down hole operations along with bolt holes and
anchor screw provisions.

OBJECT OF THE INVENTION
It is therefore an object of the invention to propose a Tubing spool with multiple
radial exit bores for control lines of sub surface safety valves injecting of water
and chemicals of international standards.
SUMMARY OF THE INVENTION
Accordingly, there is provided a Tubing spool with multiple radial exit bores for
control lines of sub surface safety valves injecting of water and chemicals.
Special pockets are machined on the top flange for radially exiting the control
lines for easy installation and retrieval of control line exits without interfering
with existing bolts and anchor screws. Control line exits are provided with
suitable plugs for safety during transit. Control lines are continuous and the extra
length of the control lines are wounded around the neck of the tubing hanger of
the tubing spool, and radially drawn out through the control line ports.
The tubing spool of the invention is provided with six numbers of control line
exits. The advantage of the invention is that maximum six control line operations
namely chemical injection, feed cable insertion, electric cable for sub surface
operations, water injections and two electric submersible pump cables are
possible which reduces the rig time in testing and exploration of the oil well.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
Figure 1 shows an isometric view of a Tubing Spool with multiple ports for tubing
and control lines according to the invention.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE
INVENTION
As shown in figure 1, the tubing spool (1) is provided with six radial exit ports (3)
for six number control lines, each line is used for different exploratory operations
for example, water injection, chemical injection, and others. At least ten number
of anchor screws (2), for holding a hanger inside the spool body and energizing
the tubing hanger are provided. The tubing spool (1) comprises a body (SB), a
top flange (TF), and a bottom flange (BF). The radial ports are provided on the
top flange (TF), wherein a plurality of pockets (4) are drilled on the top flange
(TF). The radial exit ports (3) are configured with threads to join the control lines
having matching threadings.

We Claim :
1. A Tubing spool with multiple radial exit bores for control lines of sub surface
safety valves injecting of water and chemicals; comprising :
- a tubular body having a top and a bottom portion provided with one each
flange to form a tubing spool;
- a tubing hanger disposed on the top flange being releasably attached by a
plurality of anchor screws, the control lines wound around the hangers
and can be radially drawn out of the hanger during operation;
- at least six radial ports configured on the top flange such that
corresponding number of control lines can be projected radially outwardly
without intersecting the anchor screws and bolts to reduce the rig-testing
time including exploration of the oil well.

2. The tubing spool as claimed in claim 1, wherein a plurality of pockets are
drilled on the top flange to allow radial exit of the control lines.
3. The tubing spool as claimed in claim 1, wherein the exit ports are provided
with threads matching with the threads of the control lines.
4. The tubing spool as claimed in any of the preceding claims, wherein the
control lines are provided with caps to prevent damage during projecting out
or retrieval.