GB1407630A - Oil wells - Google Patents
Oil wellsInfo
- Publication number
- GB1407630A GB1407630A GB3127173A GB3127173A GB1407630A GB 1407630 A GB1407630 A GB 1407630A GB 3127173 A GB3127173 A GB 3127173A GB 3127173 A GB3127173 A GB 3127173A GB 1407630 A GB1407630 A GB 1407630A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sub
- tubing
- pump
- production tubing
- production
- 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 2
- 238000010348 incorporation Methods 0.000 abstract 2
- 239000000295 fuel oil Substances 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000012856 packing Methods 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
1407630 Wells &c HEAVY OIL PRODUCERS SERVICES INC 30 June 1973 31271/73 Heading E1F A tool for use in an oil well having a casing (14), Fig I (not shown), a production tubing (12), a reciprocable plunger-type pump (18) in the lower portion of the production tubing, a packer (98) between the tubing and casing above the pump, and a pump rod string 16 reciprocable in the tubing for operating the pump, comprises a tubing assembly 20, 34, 40 and 24 for incorporation into the production tubing and including a pump rod pack-off sub 52, threaded means 66 releasably securing the sub 52 to the tubing assembly, and retrieving means 70 for incorporation into the pump rod string 16 and including threaded means 68 for engaging the sub 52, releasing the sub from the tubing assembly and removing the sub from the tubing assembly and production tubing without pulling to the production tubing from the casing. The lower end of the sub 52 is provided with a right-hand internal thread, and a left-hand external thread 66 which provides the releasable attachment of the sub with the tubing assembly. To remove the packing sub 52. pump rod 16 and pump plunger, the. pump rod is risen and rotated until the threaded portion 68 of the retrieving means 70 is fully received within the lower end of the sub, and further rotation causes the left-hand threaded portions 66 between the sub 52 and tubing assembly to dis-engage, thereafter the sub 52, rod 16 and pump plunger can be withdrawn. The tubing assembly includes a pack-off 46. Adjacent the. lower end of the tool is provided a production sub 84 with check valves 88, 96, the sub 84 providing communication between the production tubing and the surrounding annulus (92) defined by the casing (14). A quantity of lightweight fluid is disposed in the production tubing (12) above the sub 52 for lubricating the pump rod during reciprocation A sub 100 having a pressure-operated valve 108 is provided for removal of the fluid from the production tubing if necessary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3127173A GB1407630A (en) | 1973-06-30 | 1973-06-30 | Oil wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3127173A GB1407630A (en) | 1973-06-30 | 1973-06-30 | Oil wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1407630A true GB1407630A (en) | 1975-09-24 |
Family
ID=10320622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3127173A Expired GB1407630A (en) | 1973-06-30 | 1973-06-30 | Oil wells |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1407630A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205805B (en) * | 2006-12-19 | 2011-02-02 | 王淑英 | Oil production string |
| CN108643872A (en) * | 2018-07-05 | 2018-10-12 | 江苏航天鸿鹏数控机械有限公司 | A kind of heavy oil wells pumping wax-proofing apparatus |
-
1973
- 1973-06-30 GB GB3127173A patent/GB1407630A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205805B (en) * | 2006-12-19 | 2011-02-02 | 王淑英 | Oil production string |
| CN108643872A (en) * | 2018-07-05 | 2018-10-12 | 江苏航天鸿鹏数控机械有限公司 | A kind of heavy oil wells pumping wax-proofing apparatus |
| CN108643872B (en) * | 2018-07-05 | 2024-02-20 | 江苏航天鸿鹏数控机械有限公司 | Viscous crude well swabbing wax control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee | ||
| PCPE | Delete 'patent ceased' from journal |
Free format text: 4902 |
|
| PCNP | Patent ceased through non-payment of renewal fee |