CN110863790B - For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well - Google Patents
For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well Download PDFInfo
- Publication number
- CN110863790B CN110863790B CN201911075327.4A CN201911075327A CN110863790B CN 110863790 B CN110863790 B CN 110863790B CN 201911075327 A CN201911075327 A CN 201911075327A CN 110863790 B CN110863790 B CN 110863790B
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- Prior art keywords
- fishing
- injection allocation
- claw
- barrel
- reset
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- 238000002347 injection Methods 0.000 title claims abstract description 42
- 239000007924 injection Substances 0.000 title claims abstract description 42
- 210000000078 claw Anatomy 0.000 claims abstract description 34
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/164—Injecting CO2 or carbonated water
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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Marine Sciences & Fisheries (AREA)
Abstract
The invention relates to the technical field of tertiary oil recovery, and belongs to a method for CO2The mechanical adjustable injection allocation device of the separate injection well is specially used for adjusting the reset head. The invention aims to solve the problem of CO2The adjustable bailing rod of the injection allocation well machine can be fished and taken off and can realize the problem of reset. The invention consists of a joint (1), a spring (2), a pressing cap (3), a fishing barrel (4) and a fishing claw (5), and has the advantages of reasonable structure, simple operation, realization of multi-layer allocation of the throwing and fishing device by one-time well descending, great reduction of test cost and the like.
Description
The technical field is as follows: the invention relates to the technical field of tertiary oil recovery, and belongs to a method for CO2The mechanical adjustable injection allocation device of the separate injection well is specially used for adjusting the reset head.
Background art: with CO2The constantly development of the technique of annotating separately, but mechanical adjustable injection allocation ware can realize once going into the well and can realize multilayer allotment, because the function that the stopper was dragged for and is sent can only be satisfied to conventional delivery head, and need twice going into the well, can't satisfy the demand of the adjustable injection allocation ware of current machinery. Therefore, a special adjusting reset head which can be fished and taken off in one-time well descending is needed, and the function of realizing multilayer allocation in one-time well descending is met.
The invention content is as follows: the invention aims to provide a device for regulating the layers of a plurality of mechanically adjustable distributors for CO, which can solve the problems that a fishing rod of the mechanically adjustable distributor can be lifted and separated when being lowered into a well once and realize the regulation of the plurality of mechanically adjustable distributors when being lowered into the well once2The mechanical adjustable injection allocation device of the separate injection well is specially used for adjusting the reset head.
The invention is realized by the following technical scheme: the fishing device comprises a joint, a spring, a pressing cap, a fishing barrel and a fishing claw, wherein the joint is in threaded connection with the fishing barrel, and the spring, the pressing cap and the fishing claw are sequentially arranged in the fishing barrel from top to bottom.
The fishing barrel is evenly divided into 6 sections by adopting a linear cutting technology, an inner slope angle is arranged on the inner table surface, and the fishing barrel and the fishing claw form a layer-adjustable mechanism capable of being connected and disconnected.
The fishing claw is evenly divided into 3 petals by adopting a linear cutting technology, and slope angles are arranged on two sides of the inner table surface, so that the fishing rod in the mechanically adjustable dispenser can conveniently enter and separate.
When the layer is adjusted, the fishing rod is fished by the special reset adjusting head, and the outer diameter of the fishing barrel is consistent with the inner diameter of the eccentric hole of the injection allocation main body, so that the fishing claw is limited by the fishing barrel in outer diameter and tightly grasps the fishing rod; the special adjusting reset head continues to lift for a certain distance and then enters the hole expanding space of the eccentric hole of the injection allocation main body, the fishing barrel and the fishing claw are simultaneously expanded outwards under the action of downward pulling force, and the fishing rod of the mechanical adjustable injection allocation device is separated from the fishing claw; when resetting, the fishing barrel with the lengthened outer table surface is replaced on the ground, the fishing rod of the mechanically adjustable injection allocation device is fished in the well, and the fishing rod can be tightly fished by the expanded space of the eccentric hole of the injection allocation main body and the constraint of the outer diameter of the eccentric hole in the lifting process due to the lengthened outer table surface of the fishing barrel. Meanwhile, the rail pin of the mechanically adjustable dispenser enters the reset rail of the adjusting rotating shaft to start resetting until the special layer-adjusting reset head completely lifts out the offset hole of the dispensing main body, the fishing barrel and the fishing claw are simultaneously expanded outwards by downward pulling force, the fishing rod of the mechanically adjustable dispenser is separated from the fishing claw, and the adjusting rotating shaft of the mechanically adjustable dispenser is completely reset.
The invention has the following advantages:
the invention has reasonable structure and simple operation, has the function that the fishing rod of the mechanical adjustable injection allocation device can be fished and taken off, can realize the one-time downhole multi-layer allocation of the casting and fishing device, and can greatly reduce the test cost.
Description of the drawings: FIG. 1 is a schematic structural view of the present invention; fig. 2 is a cross-sectional view along a-a of fig. 1.
In the figure, 1-joint, 2-spring, 3-pressing cap, 4-fishing barrel and 5-fishing claw.
The specific implementation mode is as follows: the invention will be further described with reference to the accompanying drawings in which: the fishing device comprises a connector 1, a spring 2, a pressing cap 3, a fishing barrel 4 and a fishing claw 5, wherein the connector 1 is in threaded connection with the fishing barrel 4, and the spring 2, the pressing cap 3 and the fishing claw 5 are sequentially arranged in the fishing barrel 4 from top to bottom.
The fishing barrel 4 is evenly divided into 6 sections by adopting a linear cutting technology, an inner slope angle is arranged on the inner table surface, and a layer connecting and releasing mechanism is formed by the fishing barrel and the fishing claw 5; the outer diameter of the overshot 4 is consistent with the inner diameter of an eccentric hole of a main injection allocation body in the mechanical adjustable injection allocation device, and two overshot heads of layer adjusting and resetting are formed by changing the length of the matching surface of the overshot 4 and the eccentric hole of the main injection allocation body in the mechanical adjustable injection allocation device, so that the layer adjusting and resetting design in a local promotion space is realized.
The salvaging claw 5 is evenly divided into 3 petals by adopting a linear cutting technology, and slope angles are arranged on two sides of the inner table surface, so that a salvaging rod in the mechanically adjustable dispenser can conveniently enter and separate.
When the device is used on site, a special adjusting reset head is arranged before the throwing and fishing device is put into a well. When transferring the layer, the ware is salvaged to the ware of dragging for, and after the support arm is opened, the special regulation resets the head and gets into the eccentric orfice that the adjustable injection allocation ware of machinery was annotated the main part, continues to transfer, inside fishing rod gets into fishing barrel 4, extrusion fishing claw 5 went upward along fishing barrel 4 inside slopes, and 3 compression spring 2 of cap 3 are pressed in the promotion simultaneously, and fishing claw 5 receives upward pressure to open, enables just that fishing rod front end gets into inside fishing claw 5 completely. The special adjusting reset head is lifted upwards, the fishing claw 5 is pulled downwards by the fishing rod, and meanwhile, the spring 2 rebounds downwards to push the pressing cap 3 to move downwards until the fishing claw 5 and the inclined plane of the fishing barrel 4 are completely jacked. Because the outer diameter of the fishing barrel 4 is consistent with the inner diameter of the eccentric hole of the injection allocation main body, the outer diameter of the fishing claw 5 is limited by the fishing barrel 4 and cannot expand outwards after being pulled downwards, and the fishing rod is tightly grasped. The special adjusting reset head continuously lifts for a certain distance and then enters the hole expanding space of the eccentric hole of the injection allocation main body, the fishing barrel 4 and the fishing claw 5 are simultaneously expanded outwards under the action of downward pulling force, and the fishing rod of the mechanically adjustable injection allocation device is separated from the fishing claw 5.
When resetting, the overshot 4 with the lengthened outer table-board is replaced through the ground, the fishing process of going into the well is the same as the layer adjusting process, because the outer table-board of the overshot 4 is lengthened, the lifting process can pass through the expanding space of the eccentric hole of the injection allocation main body and is restrained by the external diameter of the eccentric hole without expansion, the overshot rod is tightly fished, meanwhile, the rail pin of the mechanically adjustable injection allocation device enters the reset rail of the adjusting rotating shaft to start resetting, until the special adjusting reset head completely puts forward the eccentric hole of the injection allocation main body, the overshot 4 and the overshot claw 5 are simultaneously expanded outwards by downward pulling force, the overshot rod of the mechanically adjustable injection allocation device is separated from the overshot claw 5, and the adjusting rotating shaft of the mechanically adjustable injection allocation device is completely reset.
Claims (1)
1. For CO2The mechanical adjustable injection allocation device special use of branch notes well adjusts the reset head, its characterized in that: the fishing device comprises a joint (1), a spring (2), a pressing cap (3), a fishing barrel (4) and a fishing claw (5), wherein the joint (1) is in threaded connection with the fishing barrel (4), and the spring (2), the pressing cap (3) and the fishing claw (5) are sequentially arranged in the fishing barrel (4) from top to bottom; the fishing barrel (4) is uniformly divided into 6 sections by adopting a linear cutting technology, an inner slope angle is arranged on the inner table surface, and the fishing barrel and the fishing claw (5) form a layer-adjustable mechanism capable of being connected and disconnected; the salvaging claw (5) is uniformly divided into 3 petals by adopting a linear cutting technology, and slope angles are arranged on two sides of the inner table surface, so that a salvaging rod in the mechanically adjustable dispenser can conveniently enter and disengage; when the layer is adjusted, the fishing rod is fished by the special reset adjusting head, and the outer diameter of the fishing barrel (4) is consistent with the inner diameter of the eccentric hole of the injection allocation main body, so that the fishing rod is tightly grasped by the fishing claw (5) due to the limitation of the fishing barrel (4); the special adjusting reset head continuously lifts for a certain distance and then enters the hole expanding space of the eccentric hole of the injection allocation main body, the fishing barrel (4) and the fishing claw (5) are simultaneously expanded outwards under the action of downward pulling force, and the fishing rod of the mechanically adjustable injection allocation device is separated from the fishing claw (5); when resetting, the fishing barrel (4) with the lengthened outer table top is replaced through the ground, the fishing rod of the mechanical adjustable injection allocation device is fished down in the well, the outer table top of the fishing barrel (4) is lengthened, the upward lifting process can pass through the expanding space of the eccentric hole of the injection allocation main body and is restrained by the outer diameter of the eccentric hole, the fishing rod is tightly fished, meanwhile, the rail pin of the mechanical adjustable injection allocation device enters the reset rail of the adjusting rotating shaft to start resetting, when the special layer adjusting reset head completely lifts the eccentric hole of the injection allocation main body, the fishing barrel (4) and the fishing claw (5) are simultaneously expanded outwards by downward pulling force, the fishing rod of the mechanical adjustable injection allocation device is separated from the fishing claw (5), and the adjusting rotating shaft of the mechanical adjustable injection allocation device is completely reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911075327.4A CN110863790B (en) | 2019-11-06 | 2019-11-06 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911075327.4A CN110863790B (en) | 2019-11-06 | 2019-11-06 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110863790A CN110863790A (en) | 2020-03-06 |
| CN110863790B true CN110863790B (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911075327.4A Active CN110863790B (en) | 2019-11-06 | 2019-11-06 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
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| CN (1) | CN110863790B (en) |
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| CN201031643Y (en) * | 2007-05-30 | 2008-03-05 | 大庆油田有限责任公司 | Down-hole salvaging release tools |
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| CN110107267B (en) * | 2019-05-29 | 2020-01-31 | 东北石油大学 | injection allocation device convenient for replacing water nozzle in blanking plug |
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| CN110863790A (en) | 2020-03-06 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20211220 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District No. 233 South Central Avenue Applicant after: Daqing Oilfield Co.,Ltd. Applicant after: PetroChina Company Limited Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District No. 233 South Central Avenue Applicant before: Daqing Oilfield Co.,Ltd. |
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