US3964544A
(en)
*
|
1975-06-20 |
1976-06-22 |
Halliburton Company |
Pressure operated isolation valve for use in a well testing and treating apparatus, and its method of operation
|
DE2616823C2
(de)
*
|
1975-06-20 |
1985-01-17 |
Halliburton Co., Duncan, Okla. |
Ventilanordnung für eine Vorrichtung zum Untersuchen einer Erdformation
|
US3976136A
(en)
*
|
1975-06-20 |
1976-08-24 |
Halliburton Company |
Pressure operated isolation valve for use in a well testing apparatus and its method of operation
|
US4076077A
(en)
*
|
1975-07-14 |
1978-02-28 |
Halliburton Company |
Weight and pressure operated well testing apparatus and its method of operation
|
US4059153A
(en)
*
|
1975-07-14 |
1977-11-22 |
Halliburton Company |
Weight and pressure operated well testing apparatus and its method of operation
|
US4047564A
(en)
*
|
1975-07-14 |
1977-09-13 |
Halliburton Company |
Weight and pressure operated well testing apparatus and its method of operation
|
US4064937A
(en)
*
|
1977-02-16 |
1977-12-27 |
Halliburton Company |
Annulus pressure operated closure valve with reverse circulation valve
|
US4063593A
(en)
*
|
1977-02-16 |
1977-12-20 |
Halliburton Company |
Full-opening annulus pressure operated sampler valve with reverse circulation valve
|
US4083409A
(en)
*
|
1977-05-02 |
1978-04-11 |
Halliburton Company |
Full flow bypass valve
|
US4129184A
(en)
*
|
1977-06-27 |
1978-12-12 |
Del Norte Technology, Inc. |
Downhole valve which may be installed or removed by a wireline running tool
|
US4125165A
(en)
*
|
1977-07-21 |
1978-11-14 |
Baker International Corporation |
Annulus pressure controlled test valve with locking annulus pressure operated pressure trapping means
|
US4105075A
(en)
*
|
1977-07-21 |
1978-08-08 |
Baker International Corporation |
Test valve having automatic bypass for formation pressure
|
US4109725A
(en)
*
|
1977-10-27 |
1978-08-29 |
Halliburton Company |
Self adjusting liquid spring operating apparatus and method for use in an oil well valve
|
US4109724A
(en)
*
|
1977-10-27 |
1978-08-29 |
Halliburton Company |
Oil well testing valve with liquid spring
|
US4113012A
(en)
*
|
1977-10-27 |
1978-09-12 |
Halliburton Company |
Reclosable circulation valve for use in oil well testing
|
US4144937A
(en)
*
|
1977-12-19 |
1979-03-20 |
Halliburton Company |
Valve closing method and apparatus for use with an oil well valve
|
US4253525A
(en)
*
|
1978-07-31 |
1981-03-03 |
Schlumberger Technology Corporation |
Retainer valve system
|
US4445571A
(en)
*
|
1980-01-15 |
1984-05-01 |
Halliburton Company |
Circulation valve
|
US4295361A
(en)
*
|
1980-04-03 |
1981-10-20 |
Halliburton Company |
Drill pipe tester with automatic fill-up
|
US4429748A
(en)
*
|
1980-11-05 |
1984-02-07 |
Halliburton Company |
Low pressure responsive APR tester valve
|
US4422506A
(en)
*
|
1980-11-05 |
1983-12-27 |
Halliburton Company |
Low pressure responsive APR tester valve
|
US4421172A
(en)
*
|
1981-07-13 |
1983-12-20 |
Halliburton Company |
Drill pipe tester and safety valve
|
US4553598A
(en)
*
|
1981-08-06 |
1985-11-19 |
Schlumberger Technology Corporation |
Full bore sampler valve apparatus
|
US4399870A
(en)
*
|
1981-10-22 |
1983-08-23 |
Hughes Tool Company |
Annulus operated test valve
|
US4444268A
(en)
*
|
1982-03-04 |
1984-04-24 |
Halliburton Company |
Tester valve with silicone liquid spring
|
US4448254A
(en)
*
|
1982-03-04 |
1984-05-15 |
Halliburton Company |
Tester valve with silicone liquid spring
|
US4522266A
(en)
*
|
1982-03-05 |
1985-06-11 |
Halliburton Company |
Downhole tester valve with resilient seals
|
US4452313A
(en)
*
|
1982-04-21 |
1984-06-05 |
Halliburton Company |
Circulation valve
|
US4420045A
(en)
*
|
1982-05-03 |
1983-12-13 |
Halliburton Company |
Drill pipe tester and safety valve
|
US4489786A
(en)
*
|
1983-09-19 |
1984-12-25 |
Halliburton Company |
Low pressure responsive downhole tool with differential pressure holding means
|
US4557333A
(en)
*
|
1983-09-19 |
1985-12-10 |
Halliburton Company |
Low pressure responsive downhole tool with cam actuated relief valve
|
US4515219A
(en)
*
|
1983-09-19 |
1985-05-07 |
Halliburton Company |
Low pressure responsive downhole tool with floating shoe retarding means
|
US4537258A
(en)
*
|
1983-09-19 |
1985-08-27 |
Halliburton Company |
Low pressure responsive downhole tool
|
US4633952A
(en)
*
|
1984-04-03 |
1987-01-06 |
Halliburton Company |
Multi-mode testing tool and method of use
|
US4560004A
(en)
*
|
1984-05-30 |
1985-12-24 |
Halliburton Company |
Drill pipe tester - pressure balanced
|
US4589485A
(en)
*
|
1984-10-31 |
1986-05-20 |
Halliburton Company |
Downhole tool utilizing well fluid compression
|
EP0237662B1
(en)
*
|
1986-03-18 |
1990-05-23 |
Halliburton Company |
Downhole tool
|
US4595060A
(en)
*
|
1984-11-28 |
1986-06-17 |
Halliburton Company |
Downhole tool with compressible well fluid chamber
|
EP0183482B1
(en)
*
|
1984-11-28 |
1991-01-30 |
Halliburton Company |
Downhole tool
|
US4617999A
(en)
*
|
1984-11-28 |
1986-10-21 |
Halliburton Company |
Downhole tool with compression chamber
|
US4610308A
(en)
*
|
1984-12-27 |
1986-09-09 |
Schlumberger Technology Corporation |
Bottom hole sampler and safety valve and valve therefor
|
US4577692A
(en)
*
|
1985-03-04 |
1986-03-25 |
Hughes Tool Company |
Pressure operated test valve
|
US4655288A
(en)
*
|
1985-07-03 |
1987-04-07 |
Halliburton Company |
Lost-motion valve actuator
|
US4753292A
(en)
*
|
1985-07-03 |
1988-06-28 |
Halliburton Company |
Method of well testing
|
US5156207A
(en)
*
|
1985-09-27 |
1992-10-20 |
Halliburton Company |
Hydraulically actuated downhole valve apparatus
|
US4664196A
(en)
*
|
1985-10-28 |
1987-05-12 |
Halliburton Company |
Downhole tool with compressible liquid spring chamber
|
US4657083A
(en)
*
|
1985-11-12 |
1987-04-14 |
Halliburton Company |
Pressure operated circulating valve with releasable safety and method for operating the same
|
US4657082A
(en)
|
1985-11-12 |
1987-04-14 |
Halliburton Company |
Circulation valve and method for operating the same
|
US4646838A
(en)
*
|
1985-12-12 |
1987-03-03 |
Halliburton Company |
Low pressure responsive tester valve with spring retaining means
|
US4691779A
(en)
*
|
1986-01-17 |
1987-09-08 |
Halliburton Company |
Hydrostatic referenced safety-circulating valve
|
US4665991A
(en)
*
|
1986-01-28 |
1987-05-19 |
Halliburton Company |
Downhole tool with gas energized compressible liquid spring
|
US4736798A
(en)
*
|
1986-05-16 |
1988-04-12 |
Halliburton Company |
Rapid cycle annulus pressure responsive tester valve
|
US4817723A
(en)
*
|
1987-07-27 |
1989-04-04 |
Halliburton Company |
Apparatus for retaining axial mandrel movement relative to a cylindrical housing
|
US4911242A
(en)
*
|
1988-04-06 |
1990-03-27 |
Schlumberger Technology Corporation |
Pressure-controlled well tester operated by one or more selected actuating pressures
|
US4907655A
(en)
*
|
1988-04-06 |
1990-03-13 |
Schlumberger Technology Corporation |
Pressure-controlled well tester operated by one or more selected actuating pressures
|
DE3906227C1
(en)
*
|
1989-02-28 |
1990-07-26 |
Gkn Keller Gmbh, 6050 Offenbach, De |
Device for taking samples from boreholes
|
GB2229748B
(en)
*
|
1989-03-29 |
1993-03-24 |
Exploration & Prod Serv |
Drill stem test tools
|
US4979568A
(en)
*
|
1990-01-16 |
1990-12-25 |
Baker Hughes Incorporated |
Annulus fluid pressure operated testing valve
|
US5050681A
(en)
*
|
1990-07-10 |
1991-09-24 |
Halliburton Company |
Hydraulic system for electronically controlled pressure activated downhole testing tool
|
US5251703A
(en)
*
|
1991-02-20 |
1993-10-12 |
Halliburton Company |
Hydraulic system for electronically controlled downhole testing tool
|
US5101907A
(en)
*
|
1991-02-20 |
1992-04-07 |
Halliburton Company |
Differential actuating system for downhole tools
|
US5127477A
(en)
*
|
1991-02-20 |
1992-07-07 |
Halliburton Company |
Rechargeable hydraulic power source for actuating downhole tool
|
US5265679A
(en)
*
|
1992-03-13 |
1993-11-30 |
Baker Hughes Incorporated |
Equalizing apparatus for use with wireline-conveyable pumps
|
EP0518371B1
(en)
*
|
1991-06-14 |
1998-09-09 |
Baker Hughes Incorporated |
Fluid-actuated wellbore tool system
|
US5318130A
(en)
*
|
1992-08-11 |
1994-06-07 |
Halliburton Company |
Selective downhole operating system and method
|
US5335731A
(en)
*
|
1992-10-22 |
1994-08-09 |
Ringgenberg Paul D |
Formation testing apparatus and method
|
US5412568A
(en)
*
|
1992-12-18 |
1995-05-02 |
Halliburton Company |
Remote programming of a downhole tool
|
US5355960A
(en)
*
|
1992-12-18 |
1994-10-18 |
Halliburton Company |
Pressure change signals for remote control of downhole tools
|
US5273112A
(en)
*
|
1992-12-18 |
1993-12-28 |
Halliburton Company |
Surface control of well annulus pressure
|
US5353870A
(en)
*
|
1993-05-28 |
1994-10-11 |
Harris Richard K |
Well purging and sampling pump
|
US5558162A
(en)
*
|
1994-05-05 |
1996-09-24 |
Halliburton Company |
Mechanical lockout for pressure responsive downhole tool
|
US5482119A
(en)
*
|
1994-09-30 |
1996-01-09 |
Halliburton Company |
Multi-mode well tool with hydraulic bypass assembly
|
US5887657A
(en)
*
|
1995-02-09 |
1999-03-30 |
Baker Hughes Incorporated |
Pressure test method for permanent downhole wells and apparatus therefore
|
US5992520A
(en)
*
|
1997-09-15 |
1999-11-30 |
Halliburton Energy Services, Inc. |
Annulus pressure operated downhole choke and associated methods
|
US7198109B2
(en)
*
|
1998-08-21 |
2007-04-03 |
Bj Services Company |
Double-pin radial flow valve
|
US7201232B2
(en)
|
1998-08-21 |
2007-04-10 |
Bj Services Company |
Washpipeless isolation strings and methods for isolation with object holding service tool
|
USRE40648E1
(en)
*
|
1998-08-21 |
2009-03-10 |
Bj Services Company, U.S.A. |
System and method for downhole operation using pressure activated valve and sliding sleeve
|
US6722440B2
(en)
*
|
1998-08-21 |
2004-04-20 |
Bj Services Company |
Multi-zone completion strings and methods for multi-zone completions
|
US7124824B2
(en)
*
|
2000-12-05 |
2006-10-24 |
Bj Services Company, U.S.A. |
Washpipeless isolation strings and methods for isolation
|
US7004638B2
(en)
*
|
2001-12-06 |
2006-02-28 |
Diamould Limited |
Sealing system for connector
|
US7267990B2
(en)
*
|
2002-11-15 |
2007-09-11 |
Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College |
Chelation of charged and uncharged molecules with porphyrin-based compounds
|
US7637317B1
(en)
|
2006-10-06 |
2009-12-29 |
Alfred Lara Hernandez |
Frac gate and well completion methods
|
US8534361B2
(en)
*
|
2009-10-07 |
2013-09-17 |
Baker Hughes Incorporated |
Multi-stage pressure equalization valve assembly for subterranean valves
|
US8336628B2
(en)
*
|
2009-10-20 |
2012-12-25 |
Baker Hughes Incorporated |
Pressure equalizing a ball valve through an upper seal bypass
|
US9371918B2
(en)
*
|
2011-09-30 |
2016-06-21 |
Weatherford Technology Holdings, Llc |
Ball valve float equipment
|
CN104863550B
(zh)
*
|
2014-02-26 |
2019-09-13 |
中海石油(中国)有限公司上海分公司 |
水力喷砂射孔与apr测试联作工艺
|
US10018039B2
(en)
*
|
2014-09-19 |
2018-07-10 |
Saudi Arabian Oil Company |
Fast-setting retrievable slim-hole test packer and method of use
|
GB2566465B
(en)
*
|
2017-09-13 |
2020-09-23 |
Welleng Science & Tech Ltd |
Valve apparatus
|
CN111608581A
(zh)
*
|
2020-05-07 |
2020-09-01 |
青岛智腾科技有限公司 |
一种动态测量用定向传感器
|
US20230072189A1
(en)
*
|
2021-09-08 |
2023-03-09 |
Halliburton Energy Services, Inc. |
Hydraulic Setting Chamber Isolation Mechanism From Tubing Pressure During Production And Stimulation Of The Well
|