Dual Function Additive For Water Based Drilling Fluids

Abstract: Method of improving the rate of penetration of the drilling bit when drilling a wellbore through unstable clayey soils and of reducing the soil disaggregation, the method comprising drilling the well in the presence of a water based drilling fluid that contains a dual function additive that improves the lubrication between the bit and the well walls while inerting the drilling fluid against such soils..

Patent Information

Application #

Filing Date

05 September 2024

Publication Number

52/2024

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

Parent Application

Applicants

LAMBERTI SPA

via Piave 18 21041 Albizzate (VA)

Inventors

1. VIGANO', Laura

Via Vercelli, 14 20015 Parabiago (MI)

2. MERLI, Luigi

Via Portici, 10 21047 Saronno (VA)

3. PRIVITERA, Letizia

Via Giacomo Matteotti, 15 21040 Sumirago (VA)

Specification

Documents

Application Documents

#	Name	Date
1	202417067249-STATEMENT OF UNDERTAKING (FORM 3) [05-09-2024(online)].pdf	2024-09-05
2	202417067249-REQUEST FOR EXAMINATION (FORM-18) [05-09-2024(online)].pdf	2024-09-05
3	202417067249-PRIORITY DOCUMENTS [05-09-2024(online)].pdf	2024-09-05
4	202417067249-POWER OF AUTHORITY [05-09-2024(online)].pdf	2024-09-05
5	202417067249-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [05-09-2024(online)].pdf	2024-09-05
6	202417067249-FORM 18 [05-09-2024(online)].pdf	2024-09-05
7	202417067249-FORM 1 [05-09-2024(online)].pdf	2024-09-05
8	202417067249-DECLARATION OF INVENTORSHIP (FORM 5) [05-09-2024(online)].pdf	2024-09-05
9	202417067249-COMPLETE SPECIFICATION [05-09-2024(online)].pdf	2024-09-05
10	202417067249-Proof of Right [20-09-2024(online)].pdf	2024-09-20
11	202417067249-Certified Copy of Priority Document [20-09-2024(online)].pdf	2024-09-20
12	202417067249-FORM 3 [19-02-2025(online)].pdf	2025-02-19