NL7114251A - - Google Patents
Info
- Publication number
- NL7114251A NL7114251A NL7114251A NL7114251A NL7114251A NL 7114251 A NL7114251 A NL 7114251A NL 7114251 A NL7114251 A NL 7114251A NL 7114251 A NL7114251 A NL 7114251A NL 7114251 A NL7114251 A NL 7114251A
- Authority
- NL
- Netherlands
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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8094670A | 1970-10-15 | 1970-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7114251A true NL7114251A (xx) | 1972-04-18 |
Family
ID=22160678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7114251A NL7114251A (xx) | 1970-10-15 | 1971-10-15 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3693732A (xx) |
| DE (1) | DE2136103A1 (xx) |
| FR (1) | FR2110453B3 (xx) |
| GB (1) | GB1333883A (xx) |
| NL (1) | NL7114251A (xx) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917008A (en) * | 1974-10-29 | 1975-11-04 | Cities Service Co | Apparatus and process for preventing blow-outs |
| US4044834A (en) * | 1975-04-09 | 1977-08-30 | Perkins Lee E | Apparatus and method for controlling the flow of fluids from a well bore |
| US4377177A (en) * | 1979-04-16 | 1983-03-22 | Claycomb Jack R | Throttling mud choke apparatus |
| US4253530A (en) * | 1979-10-09 | 1981-03-03 | Dresser Industries, Inc. | Method and system for circulating a gas bubble from a well |
| US4292991A (en) * | 1979-12-17 | 1981-10-06 | Masoneilan International, Inc. | Erosion resistant valve |
| US4715022A (en) * | 1985-08-29 | 1987-12-22 | Scientific Drilling International | Detection means for mud pulse telemetry system |
| US6668935B1 (en) * | 1999-09-24 | 2003-12-30 | Schlumberger Technology Corporation | Valve for use in wells |
| US6484816B1 (en) * | 2001-01-26 | 2002-11-26 | Martin-Decker Totco, Inc. | Method and system for controlling well bore pressure |
| US10233726B2 (en) * | 2014-08-22 | 2019-03-19 | Baker Hughes, A Ge Company, Llc | Pressure differential device with constant pressure drop |
| CN105484688B (zh) * | 2015-11-23 | 2018-06-05 | 贵州航天天马机电科技有限公司 | 一种锚固钻机反循环装置 |
| CA2933855A1 (en) * | 2016-06-23 | 2017-12-23 | Jason Lock | Method and apparatus for maintaining bottom hole pressure during connections |
| US10920908B2 (en) | 2018-01-22 | 2021-02-16 | DDS Investments, LLC | Valve stem for choke valve |
| US11299959B2 (en) * | 2019-09-25 | 2022-04-12 | Eagle PCO, LLC | Pressure balanced well flow control system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US26220A (en) * | 1859-11-22 | wilson and l | ||
| US2259019A (en) * | 1939-06-07 | 1941-10-14 | Sullivan Machinery Co | Apparatus for pumping oil wells |
| US3362487A (en) * | 1966-05-03 | 1968-01-09 | Swaco Inc | Control for a hydraulically actuated choke in a drilling mud flow line |
| US3470972A (en) * | 1967-06-08 | 1969-10-07 | Warren Automatic Tool Co | Bottom-hole pressure regulation apparatus |
| DE1803849A1 (de) * | 1968-10-18 | 1970-05-27 | Elmer Dipl Ing Adam | Hydrospeicher mit schwimmendem Kolben |
| US3550696A (en) * | 1969-07-25 | 1970-12-29 | Exxon Production Research Co | Control of a well |
-
1970
- 1970-10-15 US US80946A patent/US3693732A/en not_active Expired - Lifetime
-
1971
- 1971-06-25 GB GB2997371A patent/GB1333883A/en not_active Expired
- 1971-07-20 DE DE19712136103 patent/DE2136103A1/de active Pending
- 1971-10-14 FR FR7136991A patent/FR2110453B3/fr not_active Expired
- 1971-10-15 NL NL7114251A patent/NL7114251A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3693732A (en) | 1972-09-26 |
| FR2110453A3 (xx) | 1972-06-02 |
| DE2136103A1 (de) | 1972-04-20 |
| FR2110453B3 (xx) | 1974-06-07 |
| GB1333883A (en) | 1973-10-17 |