WO2012156735A3 - Perforating drill string assembly - Google Patents

Perforating drill string assembly Download PDF

Info

Publication number
WO2012156735A3
WO2012156735A3 PCT/GB2012/051096 GB2012051096W WO2012156735A3 WO 2012156735 A3 WO2012156735 A3 WO 2012156735A3 GB 2012051096 W GB2012051096 W GB 2012051096W WO 2012156735 A3 WO2012156735 A3 WO 2012156735A3
Authority
WO
WIPO (PCT)
Prior art keywords
scraper
bridge plug
drill string
perforating gun
string assembly
Prior art date
Application number
PCT/GB2012/051096
Other languages
French (fr)
Other versions
WO2012156735A2 (en
Inventor
Anthony Allen
Original Assignee
Ruff Pup Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ruff Pup Limited filed Critical Ruff Pup Limited
Publication of WO2012156735A2 publication Critical patent/WO2012156735A2/en
Publication of WO2012156735A3 publication Critical patent/WO2012156735A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators

Abstract

A perforating drill string assembly comprises a bridge plug (12) connected to a conventional setting tool (14), a casing brush or scraper (20) connected to the lower end of the bridge plug and an explosive perforating gun (36) connected to the casing brush or scraper (20). The bridge plug (12) is secured to a well casing (10) in an area previously cleaned by the casing brush or scraper (20) and the perforating gun (36) is detonated. Preferably, damping means (38, 60) are located between the perforating gun (36) and the casing brush or scraper (20) to reduce the force transmitted to the bridge plug on detonation of the perforating gun.
PCT/GB2012/051096 2011-05-17 2012-05-16 Perforating drill string assembly WO2012156735A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1108252.6 2011-05-17
GB201108252A GB201108252D0 (en) 2011-05-17 2011-05-17 Drill gun assembly

Publications (2)

Publication Number Publication Date
WO2012156735A2 WO2012156735A2 (en) 2012-11-22
WO2012156735A3 true WO2012156735A3 (en) 2013-03-21

Family

ID=44260660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2012/051096 WO2012156735A2 (en) 2011-05-17 2012-05-16 Perforating drill string assembly

Country Status (2)

Country Link
GB (1) GB201108252D0 (en)
WO (1) WO2012156735A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103806869A (en) * 2014-02-28 2014-05-21 成都大漠石油机械有限公司 Inner-oil-tube cleaning tool
CA2976813A1 (en) * 2015-03-11 2016-09-15 Hunting Titan, Inc. An improved setting tool for use in subterranean wells
US20210108475A1 (en) * 2018-02-23 2021-04-15 Hunting Titan, Inc. Impact Resistant Material in Setting Tool
US11414942B2 (en) 2020-10-14 2022-08-16 Saudi Arabian Oil Company Packer installation systems and related methods
CN113237791B (en) * 2021-07-09 2021-09-14 成都理工大学 But self-cleaning's well drilling plugging material thickening performance evaluation appearance

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131470A (en) * 1990-11-27 1992-07-21 Schulumberger Technology Corporation Shock energy absorber including collapsible energy absorbing element and break up of tensile connection
US20040168805A1 (en) * 2003-02-28 2004-09-02 Fripp Michael L. Damping fluid pressure waves in a subterranean well
US20100236781A1 (en) * 2009-03-20 2010-09-23 Integrated Production Services Ltd. Method and apparatus for perforating multiple wellbore intervals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131470A (en) * 1990-11-27 1992-07-21 Schulumberger Technology Corporation Shock energy absorber including collapsible energy absorbing element and break up of tensile connection
US20040168805A1 (en) * 2003-02-28 2004-09-02 Fripp Michael L. Damping fluid pressure waves in a subterranean well
US20100236781A1 (en) * 2009-03-20 2010-09-23 Integrated Production Services Ltd. Method and apparatus for perforating multiple wellbore intervals

Also Published As

Publication number Publication date
WO2012156735A2 (en) 2012-11-22
GB201108252D0 (en) 2011-06-29

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