CN114562240A - Bypass gas lift working barrel for oil and gas field - Google Patents
Bypass gas lift working barrel for oil and gas field Download PDFInfo
- Publication number
- CN114562240A CN114562240A CN202210211850.0A CN202210211850A CN114562240A CN 114562240 A CN114562240 A CN 114562240A CN 202210211850 A CN202210211850 A CN 202210211850A CN 114562240 A CN114562240 A CN 114562240A
- Authority
- CN
- China
- Prior art keywords
- gas
- oil
- valve bag
- gas lift
- working barrel
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 claims abstract description 29
- 239000007924 injection Substances 0.000 claims abstract description 29
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 17
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 17
- 241001330002 Bambuseae Species 0.000 claims abstract description 17
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 17
- 239000011425 bamboo Substances 0.000 claims abstract description 17
- 210000000664 rectum Anatomy 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000011295 pitch Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- 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
- E21B43/122—Gas lift
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
-
- 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
- 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
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention relates to a bypass gas lift working barrel for an oil and gas field, which comprises the following components: the upper joint, the oval eccentric section of thick bamboo and the lower clutch of establishing ties in proper order, the upper joint with the lower clutch is hollow cylinder tubular structure, and the two is located same main latus rectum central line, oval eccentric section of thick bamboo is semi-cylindrical eccentric structure, its oval eccentric section of thick bamboo central line with main latus rectum central line is parallel and have a certain distance, the plane end of oval eccentric section of thick bamboo is fixed with the valve bag, be provided with the screw thread through-hole on the valve bag, the screw thread through-hole passes through the cutting ferrule and connects and be connected with the gas injection pipeline. The gas injection channel of the gas lift working barrel is used for gas injection of the gas injection pipe, the oil pipe is produced, an oil sleeve ring cavity is not occupied, the limitation of gas injection pressure and injected gas corrosivity on a gas lift technology is effectively solved, and sleeve protection is facilitated.
Description
Technical Field
The invention relates to a bypass gas lift working barrel for an oil and gas field, and belongs to the technical field of gas lift oil extraction.
Background
The main matched tool of the gas lift technology is a gas lift working barrel. The gas lift working barrel is equivalent to an oil pipe short joint and is connected with an oil pipe, and the gas lift working barrel is used for installing and fixing a gas lift valve, is a working carrier of the gas lift valve and provides a gas injection channel for the gas lift valve. The conventional gas lift working barrel gas injection channel is communicated with the oil sleeve annulus, and the working principle is as follows: high-pressure gas on the ground enters the annular space of the oil sleeve and is injected into the oil pipe through the gas lift working barrel and the gas lift valve.
High pressure gas in the oil jacket ring air has two problems: firstly, gas directly contacts with the sleeve, and particularly corrosive medium high-pressure gas can corrode the sleeve; secondly, the liquid level of the oil sleeve annulus can be gradually reduced along with the pushing of high-pressure gas, so that the sleeve is damaged by extrusion, and the popularization and the application of the gas lift technology are limited.
In the situation of increasingly severe global energy shortage, the development difficulty of oil fields is increased, the number of oil and gas wells with corrosion of fluid, sand content, scaling and the like in well structures with small wells, large displacements and the like is increased year by year, most of lifting modes are not suitable for drainage and production of the oil wells, and the advantages of the gas lifting technology with strong adaptability are gradually highlighted.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bypass gas lift working barrel for an oil-gas field, wherein a gas injection channel of the gas lift working barrel injects gas into a gas injection pipe, the oil pipe is used for production, an oil sleeve ring cavity is not occupied, the limitation of gas lift technology caused by gas injection pressure and the corrosivity of injected gas is effectively solved, the sleeve protection is facilitated, and the bypass gas lift working barrel is suitable for corrosive injected gas, corrosive oil reservoirs, large-span strata series and other oil-gas wells needing sleeve protection.
In order to realize the purpose, the invention adopts the following technical scheme:
a bypass gas lift working barrel for oil and gas fields comprises the following components:
the upper joint, the oval eccentric section of thick bamboo and the lower clutch of establishing ties in proper order, the upper joint with the lower clutch is hollow cylinder tubular structure, and the two is located same main latus rectum central line, oval eccentric section of thick bamboo is semi-cylindrical eccentric structure, its oval eccentric section of thick bamboo central line with main latus rectum central line is parallel and have a certain distance, the plane end of oval eccentric section of thick bamboo is fixed with the valve bag, be provided with the screw thread through-hole on the valve bag, the screw thread through-hole passes through the cutting ferrule and connects and be connected with the gas injection pipeline.
The oil gas field with bypass gas lift working barrel, preferably, the valve bag include the valve bag base with set up in valve bag pipe on the valve bag base, the valve bag base is fixed the plane end of oval eccentric section of thick bamboo, the screw thread through-hole set up in on the pipe wall of valve bag pipe.
The oil gas field with bypass gas lift working barrel, preferably, the valve bag central line of valve bag with main latus rectum central line is parallel, and has the certain distance.
The oil gas field with bypass gas lift working barrel, preferably, main latus rectum central line ellipse eccentric center line and valve bag central line lie in the coplanar.
The oil gas field is with bypass gas lift working barrel, preferably, oval eccentric cylinder with the top connection the junction of bottom connection is provided with the slope and links up as the transition.
The oil gas field is with bypass gas lift working barrel, preferably, the screw thread through-hole perpendicular to main latus rectum central line.
The oil gas field with bypass gas lift working barrel, preferably, the screw thread through-hole is airtight screw thread, and detain the length and be no less than four screw pitches.
The oil gas field is with bypass gas lift working barrel, preferably, the quantity of screw thread through-hole is 1-7, and distributes in same radial plane.
The oil and gas field by-pass gas lift working barrel is preferably provided with a locking mechanism on the valve bag for installing, locking and sealing the gas lift valve.
Due to the adoption of the technical scheme, the invention has the following advantages:
the invention changes the traditional oil sleeve annular gas injection mode, introduces a new bypass gas lift working barrel for an oil-gas field, is equivalent to an oil pipe nipple, is connected with an oil pipe, and has the functions of installing a gas lift valve and a bypass gas injection pipe, establishing a new gas lift injection gas channel, realizing the gas bypass gas injection function, effectively solving the problem of the gas lift technical limitation caused by gas injection pressure and corrosivity of the injected gas, and being beneficial to sleeve protection. The tool is provided with a plurality of thread through holes for connecting the gas injection pipeline to form a plurality of groups of gas injection channels, and one or a plurality of thread through holes can be started for gas injection according to the design gas quantity requirement, so that the gas quantity is adjusted.
Drawings
FIG. 1 is a schematic axial cross-sectional view of a by-pass gas lift mandrel for an oil and gas field according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
the labels in the figure are as follows:
1-upper joint; 2-an elliptical eccentric cylinder; 3-elliptical eccentric cylinder center line; 4-valve bag; 5-valve bag centerline; 6-lower joint; 7-main drift diameter central line; 8-slope; 9-threaded through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described clearly and completely below, and it is obvious that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the terms "first," "second," "third," "fourth," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
As shown in FIG. 1, the bypass gas lift mandrel for oil and gas fields provided by the invention comprises the following components:
the upper joint 1, the oval eccentric section of thick bamboo 2 and the lower joint 6 of establishing ties in proper order, upper joint 1 and lower joint 6 are hollow cylinder tubular structure, and the two is located same main latus rectum central line 7, and oval eccentric section of thick bamboo 2 is semi-cylindrical eccentric structure, and its oval eccentric section of thick bamboo central line 3 is parallel and has a certain distance with main latus rectum central line 7, and the plane end of oval eccentric section of thick bamboo 2 is fixed with valve bag 4, is provided with screw through-hole 9 on the valve bag 4, and screw through-hole 9 passes through the cutting ferrule and connects and be connected with the gas injection pipeline. The gas injection channel of the gas lift working barrel provided by the invention is used for injecting gas into a gas injection pipe, the oil pipe is produced, the cavity of an oil sleeve ring is not occupied, the limitation of gas injection pressure and the corrosivity of injected gas on a gas lift technology is effectively solved, the sleeve protection is facilitated, and the gas lift working barrel is suitable for corrosive injected gas, corrosive oil reservoirs, large-span strata and other oil and gas wells needing sleeve protection.
The gas lift working barrel is designed into an elliptical eccentric barrel and valve bag structure, so that the original gas lift steel wire throwing and fishing function is fully utilized, the throwing and fishing performance and the size parameters of the gas lift working barrel are not changed, the redesign workload of a throwing and fishing tool is reduced, the external connection of a gas injection pipe is facilitated, and the external fixed protection bypass pipe structure is conveniently designed.
In a preferred embodiment of the present invention, the valve bag 4 comprises a valve bag base and a valve bag tube disposed on the valve bag base, the valve bag base is fixed on the flat end of the elliptical eccentric cylinder 2, and the threaded through hole 9 is disposed on the tube wall of the valve bag tube.
In a preferred embodiment of the invention, the valve bag centerline 5 of the valve bag 4 is parallel to and at a distance from the main bore centerline 7.
In a preferred embodiment of the present invention, the main bore centerline 7, the elliptical eccentric cylinder centerline 3, and the valve bag centerline 5 are located on the same plane.
In a preferred embodiment of the invention, the connection of the elliptical eccentric cylinder 2 and the upper joint 1 and the lower joint 6 is provided with a slope 8 as transition joint. Effectively reduce the stress concentration of the joint of the elliptical eccentric cylinder 2 and the upper joint 1 and the lower joint 6, and realize that the bypass gas lift working cylinder smoothly enters the well.
In a preferred embodiment of the invention, the threaded through hole 9 is perpendicular to the main path centerline 7. The threaded through hole 9 is connected with a gas injection pipe, and a new high-pressure gas injection channel is established, so that the high-pressure gas is prevented from contacting the sleeve and the sleeve is protected.
In a preferred embodiment of the present invention, the threaded through hole 9 is a hermetically sealed thread and has a length of not less than four pitches.
In a preferred embodiment of the invention, the number of threaded through holes 9 is between 1 and 7 and they are distributed in the same radial plane.
In a preferred embodiment of the invention, the valve bag 4 is provided with a locking mechanism for mounting, locking, sealing the gas lift valve. When the gas lift valve needs to be replaced, the gas lift valve can be overhauled and replaced through steel wire operation under the condition that the pipe column is not replaced.
The bypass gas lift working cylinder provided by the invention is manufactured by adopting an integral forging process, is uniform in stress, has no stress concentration, has the pressure bearing capacity of 70MPa, and is suitable for high-pressure operation and corrosive medium environments. Meanwhile, the tool can be matched with a plurality of groups of bypass gas injection pipes to realize large-gas injection.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A bypass gas lift working barrel for oil and gas fields is characterized by comprising the following components:
the top connection (1), the eccentric section of thick bamboo of ellipse (2) and lower clutch (6) of establishing ties in proper order, top connection (1) with lower clutch (6) are cavity cylinder tubular structure, and the two is located same main latus rectum central line (7), the eccentric section of thick bamboo of ellipse (2) is the eccentric structure of semicircle cylindric, its eccentric section of thick bamboo central line of ellipse (3) with main latus rectum central line (7) are parallel and have a certain distance, the plane end of the eccentric section of thick bamboo of ellipse (2) is fixed with valve bag (4), be provided with screw thread through-hole (9) on valve bag (4), screw thread through-hole (9) are connected with the gas injection pipe line through the cutting ferrule joint.
2. The oil and gas field bypass gas lift working barrel according to claim 1, wherein the valve bag (4) comprises a valve bag base and a valve bag pipe arranged on the valve bag base, the valve bag base is fixed at the plane end of the elliptical eccentric barrel (2), and the thread through hole (9) is arranged on the pipe wall of the valve bag pipe.
3. The oil and gas field bypass gas lift mandrel as claimed in claim 1, wherein the valve pocket centerline (5) of the valve pocket (4) is parallel to and at a distance from the main drift diameter centerline (7).
4. The oil and gas field bypass gas lift mandrel as claimed in claim 3, wherein the main drift diameter centerline (7), the elliptical eccentric cylinder centerline (3) and the valve bag centerline (5) are located on the same plane.
5. The oil and gas field bypass gas lift working barrel according to claim 1, characterized in that the connection of the elliptical eccentric barrel (2) and the upper joint (1) and the lower joint (6) is provided with a slope (8) as transition connection.
6. The oil and gas field bypass gas lift mandrel as claimed in claim 1, wherein the threaded throughbore (9) is perpendicular to the main bore centerline (7).
7. The oil and gas field bypass gas lift working barrel according to claim 1, wherein the threaded through hole (9) is a gas sealing thread and the thread length is not less than four thread pitches.
8. The oil and gas field bypass gas lift mandrel as claimed in claim 1, wherein the number of the threaded through holes (9) is 1-7 and the threaded through holes are distributed on the same radial plane.
9. The oil and gas field bypass gas lift working barrel according to claim 1, characterized in that a locking mechanism is arranged on the valve bag (4) for installing, locking and sealing the gas lift valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210211850.0A CN114562240A (en) | 2022-03-04 | 2022-03-04 | Bypass gas lift working barrel for oil and gas field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210211850.0A CN114562240A (en) | 2022-03-04 | 2022-03-04 | Bypass gas lift working barrel for oil and gas field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114562240A true CN114562240A (en) | 2022-05-31 |
Family
ID=81718367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210211850.0A Pending CN114562240A (en) | 2022-03-04 | 2022-03-04 | Bypass gas lift working barrel for oil and gas field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114562240A (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682656A (en) * | 1986-06-20 | 1987-07-28 | Otis Engineering Corporation | Completion apparatus and method for gas lift production |
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| US6354377B1 (en) * | 1998-11-30 | 2002-03-12 | Valence Operating Company | Gas displaced chamber lift system having gas lift assist |
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2022
- 2022-03-04 CN CN202210211850.0A patent/CN114562240A/en active Pending
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