GB1463374A - Method and apparatus for testing oil wells - Google Patents
Method and apparatus for testing oil wellsInfo
- Publication number
- GB1463374A GB1463374A GB737374A GB737374A GB1463374A GB 1463374 A GB1463374 A GB 1463374A GB 737374 A GB737374 A GB 737374A GB 737374 A GB737374 A GB 737374A GB 1463374 A GB1463374 A GB 1463374A
- Authority
- GB
- United Kingdom
- Prior art keywords
- string
- section
- annulus
- fluid
- chamber
- 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
- 239000003129 oil well Substances 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 abstract 8
- 238000005070 sampling Methods 0.000 abstract 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 6
- 230000015572 biosynthetic process Effects 0.000 abstract 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract 3
- 230000000694 effects Effects 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
-
- 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
- E21B49/081—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
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
1463374 Wells &c HALLIBURTON CO 18 Feb 1974 [26 Feb 1973] 7373/74 Heading E1F A fluid sampler for use in an oil well test string, has a member which is reciprocated by varying the pressure of fluid in the annulus about the string. The sampler which comprises power and sampling sections releasably connected is located in the string adjacent a packer. In use the string is supported by a sub aqueous wellhead and extends through a riser to a vessel, the power section being above the sampling section and the packer being below the sampling section. The power section is charged with low pressure nitrogen which together with a spring acts downwardly on a piston fixed to the member. As the string is lowered into the well the effect of buoyancy is counter balanced by annulus fluid acting downwardly on a further piston, the annulus fluid also passing through ports to act on the nitrogen to increase its pressure with depth. When the packer is just above the formation to be sampled the packer is set and the weight of the upper part of the string is allowed to telescope parts of the power section closing the ports. The piston which is biassed by the spring and nitrogen is also subjected to the pressure of the annulus fluid acting upwardly so that increase in annulus pressure moves the piston and member upwardly. The lower part of the casing of the power section is fixed to the casing of the sampling section and the member is attached to a pull mandrel of the sampling section. Increased annulus pressure moves the member together with the mandrel upwardly to open ports in the sample chamber of the sampling section to permit formation fluid to flow upwardly through the chamber and string. Release of the increased pressure moves the member and mandrel downwardly to trap a sample of formation fluid in the chamber. When the sample section is removed from the string formation fluid trapped in the sample section but not in the chamber is discharged through a spool valve, and parts of the casing are removed to give access to valves draining the sample from the chamber. Should the well be threatened with a blow out through the annulus the increased pressure moves the member with such force that a close and lock device in the sampling section is actuated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33598073A | 1973-02-26 | 1973-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1463374A true GB1463374A (en) | 1977-02-02 |
Family
ID=23314056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB737374A Expired GB1463374A (en) | 1973-02-26 | 1974-02-18 | Method and apparatus for testing oil wells |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5434681B2 (en) |
| AU (1) | AU497218B2 (en) |
| BR (1) | BR7401375D0 (en) |
| CA (1) | CA989727A (en) |
| ES (2) | ES423659A1 (en) |
| GB (1) | GB1463374A (en) |
| IT (1) | IT1003618B (en) |
| NL (2) | NL175088C (en) |
| NO (2) | NO144433C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027785B (en) * | 2023-08-24 | 2024-03-22 | 西南石油大学 | Oil layer sampling device and method for geological investigation |
| CN116930434B (en) * | 2023-09-19 | 2023-11-17 | 山西智达建筑工程检测有限公司 | Indoor pollutant detection device |
-
1974
- 1974-02-18 GB GB737374A patent/GB1463374A/en not_active Expired
- 1974-02-19 CA CA192,969A patent/CA989727A/en not_active Expired
- 1974-02-20 BR BR1375/74A patent/BR7401375D0/en unknown
- 1974-02-21 NL NLAANVRAGE7402372,A patent/NL175088C/en not_active IP Right Cessation
- 1974-02-22 NO NO740622A patent/NO144433C/en unknown
- 1974-02-25 JP JP2156174A patent/JPS5434681B2/ja not_active Expired
- 1974-02-25 AU AU65977/74A patent/AU497218B2/en not_active Expired
- 1974-02-26 ES ES423659A patent/ES423659A1/en not_active Expired
- 1974-02-26 IT IT48796/74A patent/IT1003618B/en active
-
1976
- 1976-03-16 ES ES446128A patent/ES446128A1/en not_active Expired
-
1978
- 1978-11-29 NO NO784015A patent/NO145023C/en unknown
-
1983
- 1983-07-21 NL NL8302607A patent/NL8302607A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| IT1003618B (en) | 1976-06-10 |
| ES446128A1 (en) | 1977-06-01 |
| BR7401375D0 (en) | 1974-10-29 |
| ES423659A1 (en) | 1977-04-01 |
| JPS5024105A (en) | 1975-03-15 |
| NO145023B (en) | 1981-09-14 |
| NL7402372A (en) | 1974-08-28 |
| JPS5434681B2 (en) | 1979-10-29 |
| DE2408891B2 (en) | 1976-05-13 |
| NL175088C (en) | 1984-09-17 |
| NO144433B (en) | 1981-05-18 |
| DE2408891A1 (en) | 1974-09-12 |
| AU6597774A (en) | 1975-08-28 |
| CA989727A (en) | 1976-05-25 |
| NO740622L (en) | 1974-08-27 |
| NO784015L (en) | 1974-08-27 |
| NO145023C (en) | 1981-12-28 |
| NL175088B (en) | 1984-04-16 |
| NO144433C (en) | 1981-08-26 |
| NL8302607A (en) | 1983-11-01 |
| AU497218B2 (en) | 1978-12-07 |
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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: 19940217 |