GB1437761A - Wellbore circulating valve - Google Patents
Wellbore circulating valveInfo
- Publication number
- GB1437761A GB1437761A GB253574A GB253574A GB1437761A GB 1437761 A GB1437761 A GB 1437761A GB 253574 A GB253574 A GB 253574A GB 253574 A GB253574 A GB 253574A GB 1437761 A GB1437761 A GB 1437761A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- well bore
- piston
- pressure
- pull mandrel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000012530 fluid Substances 0.000 abstract 5
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 238000012360 testing method Methods 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010348 incorporation Methods 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
- E21B49/0813—Sampling valve actuated by annulus pressure changes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
- E21B34/108—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with time delay systems, e.g. hydraulic impedance mechanisms
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/001—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells specially adapted for underwater installations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Damping Devices (AREA)
- Sampling And Sample Adjustment (AREA)
- Check Valves (AREA)
Abstract
1437761 Wells &c HALLIBURTON CO 18 Jan 1974 02535/74 Heading E1F [Also in Division F2] A well bore circulating valve 1, for incorporation in a test string including well testing instruments and tools such as a pressure recorder, a formation sampler, hydraulic jar and one or more packers, comprises a tubular housing, a normally closed valve in the wall of the housing, the valve, when open and in a well bore, being arranged to provide a communication between the interior of the housing and the well bore, and means for opening the valve which is responsive to changes in pressure in fluid in the well bore for preventing opening of the valve until after at least a predetermined minimum of pressure changes has occured and then effecting opening of the valve. As described the valve consists of a port 31 (Fig. 1a) in housing 3 which is normally closed by a tubular skirt 21 engaging seals 34, 43. The skirt 21 is raised to open the valve by a ratchet mechanism (Fig. 1b) including a tube 2 having latch plates 24 urged inwardly towards a pull mandrel 5 by garter springs 28. The latch plates 24 and pull mandrel 5 are formed with ratchet teeth so that by reciprocating pull mandrel 5 the skirt 21 is progressively raised. The pull mandrel 5 is connected by members 51, 8 12 and 14 to a piston 13 (Figs. 1d, e) having a face 19 in chamber 46 which is in communication with the well bore fluids through port 45. Thus by increasing the pressure of the well bore fluid the piston 13 and hence the pull mandrel 5 is raised. When the pressure of the well bore fluid is decreased the piston is lowered by the action of an inert gas and/or a spring (not shown) in closed chamber 37. Member 12 (Fig. 1d) is formed with a piston 49 having a restricted orifice 53 and which moves in a closed chamber 48 containing oil to act as a damper during upward movement of the piston 13. A by-pass passage 57 and check valve 56 allows free downward movement of piston 13. Thus by alternately increasing and decreasing the pressure of the fluid in the well bore, the piston 13 and hence pull mandrel 5 are reciprocated and skirt 21 is progressively raised to open the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB253574A GB1437761A (en) | 1974-01-18 | 1974-01-18 | Wellbore circulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB253574A GB1437761A (en) | 1974-01-18 | 1974-01-18 | Wellbore circulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1437761A true GB1437761A (en) | 1976-06-03 |
Family
ID=9741285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB253574A Expired GB1437761A (en) | 1974-01-18 | 1974-01-18 | Wellbore circulating valve |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1437761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617057A (en) * | 2019-09-17 | 2019-12-27 | 中海艾普油气测试（天津）有限公司 | Full-pipe type underground testing pipe column and testing method thereof |
-
1974
- 1974-01-18 GB GB253574A patent/GB1437761A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617057A (en) * | 2019-09-17 | 2019-12-27 | 中海艾普油气测试（天津）有限公司 | Full-pipe type underground testing pipe column and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19940117 |