CN208966249U - A kind of compact coaxial double-pipe injection-production well mouth device - Google Patents
A kind of compact coaxial double-pipe injection-production well mouth device Download PDFInfo
- Publication number
- CN208966249U CN208966249U CN201821727430.3U CN201821727430U CN208966249U CN 208966249 U CN208966249 U CN 208966249U CN 201821727430 U CN201821727430 U CN 201821727430U CN 208966249 U CN208966249 U CN 208966249U
- Authority
- CN
- China
- Prior art keywords
- boll
- upper layer
- oil pipe
- way
- valve
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 241000254175 Anthonomus grandis Species 0.000 claims abstract description 55
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 15
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The utility model discloses a kind of compact coaxial double-pipe injection-production well mouth devices, including tubing head four-way, is successively sealedly connected on the intracavitary lower layer's boll-weevil hanger of tubing head four-way, upper layer boll-weevil hanger at the combined flat plate gate valve ontology for being detachably connected on tubing head four-way top；Successively knockdown chain is connected with the safety valve that surges, flutter valve, pumping valve and top connection tree cap to combined flat plate gate valve ontology outer circumference surface.By carrying out suspension installation respectively to upper layer oil pipe and lower layer's oil pipe, keeping structure more reasonable in tubing head four-way two boll-weevil hangers of intracavitary coaxial arrangement, occupancy installation space is smaller, eliminates cumbersome installation steps while also reducing the cost of manufacture.
Description
Technical field
The utility model relates to oil field drilling apparatus fields more particularly to a kind of compact coaxial double-pipe injection-production well mouth to fill
It sets.
Background technique
Currently, infusing in water/gas oil producing operation in heavy crude heat extraction, adopting oil/gas efficiency to improve, when saving well head installation
Between, generally use dual tubing wellhead.Split type coaxial wellhead assembly, oil production by layer are generally used in seperated layer water injection/gas technique
Technique generally uses binary channels eccentric oil pipe hanger to design, the eccentric oil pipe hanger of the structure, since shape and structure is complicated,
The problems such as installation steps are cumbersome, are particularly susceptible string chamber when installing between causing different oil pipes.
In order to solve problem above, those skilled in the relevant art do a lot of work, wherein coaxial-type dual tubing hanger
Application also very wide hair.Wherein, CN 201110201971.9 discloses a kind of coaxial double-layer gas injection well mouth device, Ke Yishi
Existing layered gas-injection, and the feature that gas injection rate is controllable, the design are respectively provided with two tubing head four-way installation boll-weevil hangers,
It assembles upper back production tree and uses split-type design, occupy installation space and increase, while increasing the height of well head, and use
The structure of two tubing head four-ways increases manufacturing cost.
CN 201420239917.2 discloses a kind of two-tube gas injection wellhead assembly of concentric type, and top production tree is using combination
Installation space is greatly saved in valve design, and well head part, which is divided to, is provided with two tubing head four-ways installation boll-weevil hangers, equally brings
, increase whole installation occupied space and increase manufacturing cost.
Therefore need to develop it is a kind of it is compact-sized, occupy little space, be easily installed, while reducing manufacturing cost, it is concentric
Formula injection-production well mouth device.
Summary of the invention
The purpose of this utility model provides a kind of structurally reasonable, volume compact aiming at defect of the existing technology,
A kind of compact coaxial double-pipe injection-production well mouth device easy for installation.
The technical solution of the utility model is:
A kind of compact coaxial double-pipe injection-production well mouth device, it is characterised in that: including tubing head four-way is detachably connected
Tubing head four-way top combined flat plate gate valve ontology, successively to be sealedly connected on the intracavitary lower layer's oil pipe of tubing head four-way outstanding
Hanging device, upper layer boll-weevil hanger；
Lower layer's boll-weevil hanger, upper layer boll-weevil hanger, the coaxial arrangement of tubing head four-way, and lower layer's oil pipe suspension position
In the top of upper layer boll-weevil hanger, lower layer's boll-weevil hanger diameter is greater than lower layer's tubing diameter and connects with lower layer's oil pipe
Connect, the upper layer boll-weevil hanger is connect with upper layer oil pipe, the diameter of the upper layer oil pipe be greater than the diameter of lower layer's oil pipe and with
Lower layer's oil pipe forms annular oil recovery space；
The tubing head four-way is intracavitary to be respectively equipped with carrying compatible with lower layer boll-weevil hanger, upper layer boll-weevil hanger
Step further respectively has on the tubing head four-way and cooperates fixed lower layer's boll-weevil hanger, upper layer oil pipe suspension with carrying step
The lock-screw of device；
The tubing head four-way outer circumference surface is removably connected with upper layer oil pipe production valve, casing valve, the upper layer oil pipe
Production valve, casing valve are located at the two sides up and down of upper layer boll-weevil hanger, and the upper layer oil pipe production valve passes through tubing head four
Logical inner cavity is connect with annular oil recovery space；
The combined flat plate gate valve ontology outer circumference surface is successively removably connected with the safety valve that surges, flutter valve, pumping valve
And top connects tree cap.
Preferably, lower layer's oil pipe suspension, upper layer boll-weevil hanger outer circumference surface be equipped with for tubing head four-way inner wall it
Between annular space seal nonmetallic sealing ring.
Preferably, combined flat plate gate valve ontology, on tubing head four-way respectively for setting through-hole, be bolted.
Preferably, lower layer's boll-weevil hanger is connect with lower layer tubing round thread, upper layer boll-weevil hanger and upper layer tubing round thread
Connection.
Preferably, upper layer oil pipe production valve, casing valve pass through flanged joint with tubing head four-way outer circumference surface respectively.
Compared with prior art, having the advantage that by the intracavitary coaxial arrangement of tubing head four-way
Two boll-weevil hangers carry out suspension installation to upper layer oil pipe and lower layer's oil pipe respectively, keep structure more reasonable, and it is empty to occupy installation
Between it is smaller, the tedious steps installed respectively before solving using multiple tubing head four-ways, and the cause bias avoided are set
The problem of oil pipe mounting means of meter is hard to fit into position, while reducing the cost of manufacture；Combined flat plate gate valve ontology, will
Flutter valve, the safety valve that surges, pumping valve, tree cap etc. are structurally reasonable to be combined, keeps overall structure more compact, is especially existed
It is used in limited working space, the advantage in structure is more prominent.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1, tubing head four-way, 2, upper layer boll-weevil hanger, 3, lower layer's boll-weevil hanger, 4, lower part lock-screw, 5,
Top lock-screw, 6, combined flat plate gate valve ontology, 7, flutter valve, 8, surge safety valve, 9, pumping valve, 10, tree cap,
11, nonmetallic sealing ring, 12, upper layer oil pipe, 13, lower layer's oil pipe, 14, upper layer oil pipe produce valve, 15, casing valve, 16, top holds
Microscope carrier rank, 17, lower part carrying step, 18, annular oil recovery space.
Specific embodiment
Here is that the present invention will be further described in conjunction with the accompanying drawings and embodiments.
Shown in referring to Fig.1, the top of tubing head four-way 1 and the lower part of combined flat plate gate valve ontology 6 are solid by screwed plug
Fixed connection；
6 outer circumference surface of combined flat plate gate valve ontology passes through flanged joint respectively the safety valve 8 that surges, flutter valve 7, pumping valve
9,6 top of combined flat plate gate valve ontology passes through flanged joint with tree cap 10 is connect, and the safety valve 8 that surges is installed on combined type
The lower part of flat gate valve ontology 6, pumping valve 9 are installed on the top of combined flat plate gate valve ontology 6, and flutter valve 7 is located at safety of surging
Between valve 8, pumping valve 9.
Tubing head four-way 1 is intracavitary to be successively arranged upper layer boll-weevil hanger 2 and lower layer's boll-weevil hanger on same axis
3, and 3 diameter of lower layer's boll-weevil hanger is greater than the diameter of upper layer boll-weevil hanger 2, and 1 outer circumference surface of tubing head four-way distinguishes method
Orchid connection upper layer oil pipe produces valve 14, casing valve 15, and the upper layer oil pipe production valve 14, casing valve 15 are located at upper layer oil pipe
The two sides up and down of hanger 2.
Upper layer boll-weevil hanger 2 is arranged in the intracavitary lower part of tubing head four-way 1, and is threadedly coupled with upper layer oil pipe 12, oil
The intracavitary lower part of tube head four-way 1 is equipped with lower part compatible with upper layer boll-weevil hanger 2 and carries step 17, and in tubing head four-way 1
On be additionally provided with the lower part lock-screw 4 for cooperating fixed upper layer boll-weevil hanger 2 with lower part carrying step 17.
The setting of lower layer's boll-weevil hanger 3 on the intracavitary top of tubing head four-way 1, lower layer's oil pipe 13 pass through after upper layer oil pipe 12 with
Lower layer's boll-weevil hanger 3 is threadedly coupled, and the intracavitary top of tubing head four-way 1 is equipped with top compatible with lower layer's boll-weevil hanger 3
Step 16 is carried, and is additionally provided on tubing head four-way 1 and cooperates the upper of fixed lower layer's boll-weevil hanger 3 with top carrying step 16
Portion's lock-screw 5.The diameter of upper layer oil pipe 12 is greater than the diameter of lower layer's oil pipe 13, and upper layer oil pipe 12 is set in lower layer's oil pipe 13
Interior, upper layer oil pipe 12 and lower layer's oil pipe 13 form annular oil recovery space 18.
Nonmetallic sealing ring 11 is set between 1 inner wall of upper layer boll-weevil hanger 2 and tubing head four-way, it is outstanding in lower layer's oil pipe
Nonmetallic sealing ring 11 is set between 1 inner wall of hanging device 3 and tubing head four-way, annular space sealing is realized by nonmetallic sealing 11.
When assembly, after upper layer oil pipe 12 is passed through 1 inner cavity of tubing head four-way first, it is installed to upper layer boll-weevil hanger 2
Lower part；
Further, upper layer boll-weevil hanger 2 is set on the lower part carrying step 17 of 1 lower part of tubing head four-way, is tightened
Lower part lock-screw 4, upper layer boll-weevil hanger 2 is fixed, meanwhile, the close of each annular space is realized by nonmetallic sealing ring 11
Envelope；
Further, after the completion of test, after lower layer's oil pipe 13 is passed through upper layer boll-weevil hanger 2, with lower layer boll-weevil hanger 3
Lower part installation；
Further, lower layer's boll-weevil hanger 3 is set on the top carrying step 16 on 1 top of tubing head four-way, is tightened
Top lock-screw 5, upper layer boll-weevil hanger 3 is fixed, meanwhile, the close of each annular space is realized by nonmetallic sealing ring 11
Envelope；
Further, after the completion of test, combined flat plate gate valve ontology 6 is mounted on 1 top of tubing head four-way；
Further, combined flat plate gate valve ontology 6 will surge safety valve 8, and pumping valve 9 is combined installation.
When work, it will will be insulated between ground and upper layer oil reservoir using packer, be sealed between upper layer oil reservoir and lower layer's oil reservoir
Every；
Operation is adopted if necessary to carry out note to upper layer oil reservoir, note is carried out by upper layer oil pipe production valve 14 and adopts operation, is injected
Fluid is injected into upper layer oil reservoir by the annular space between upper layer oil pipe 12 and lower layer's oil pipe 13, and when production, upper layer oil reservoir well liquid is logical
Cross annular oil recovery space 18 between upper layer oil pipe 12 and lower layer's oil pipe 13 enter the upper layer boll-weevil hanger 2 of oil pipe four-way 1 with
Upper layer oil pipe annular space between lower layer's boll-weevil hanger 3 produces valve 14 by upper layer oil pipe and enters production flow line；
Operation is adopted if necessary to carry out note to lower layer's oil reservoir, note is carried out by the flutter valve 7 of production tree and is adopted, injection fluid passes through
Lower layer's oil pipe 13 is injected into lower layer's oil reservoir, and when production, lower layer's oil reservoir well liquid enters the combination on production tree by lower layer's oil pipe 13
The runner of formula flat gate valve ontology 6 enters production flow line by flutter valve 7.
The utility model is not limited to above-mentioned embodiment, within the knowledge of those skilled in the art,
The present invention can also be realized without departing from the purpose of the present invention. Make a variety of changes, and the content after variation still falls within the utility model
Protection scope.
Claims (5)
1. a kind of compact coaxial double-pipe injection-production well mouth device, it is characterised in that: including tubing head four-way is detachably connected on
The combined flat plate gate valve ontology on tubing head four-way top is successively sealedly connected on the intracavitary lower layer's oil pipe suspension of tubing head four-way
Device, upper layer boll-weevil hanger；
Lower layer's boll-weevil hanger, upper layer boll-weevil hanger, the coaxial arrangement of tubing head four-way, and lower layer's oil pipe suspension are located at upper
The top of layer boll-weevil hanger, lower layer's boll-weevil hanger diameter are greater than lower layer's tubing diameter and connect with lower layer oil pipe, institute
It states upper layer boll-weevil hanger to connect with upper layer oil pipe, the diameter of the upper layer oil pipe is greater than the diameter of lower layer's oil pipe and oily with lower layer
It is tubular to circularize oil recovery space；
The tubing head four-way is intracavitary to be respectively equipped with plummer compatible with lower layer boll-weevil hanger, upper layer boll-weevil hanger
Rank further respectively has on the tubing head four-way and cooperates fixed lower layer's boll-weevil hanger, upper layer boll-weevil hanger with carrying step
Lock-screw；
The tubing head four-way outer circumference surface is removably connected with upper layer oil pipe production valve, casing valve, the upper layer oil pipe production
Valve, casing valve are located at the two sides up and down of upper layer boll-weevil hanger, and the upper layer oil pipe production valve passes through tubing head four-way
Inner cavity is connect with annular oil recovery space；
The combined flat plate gate valve ontology outer circumference surface be successively removably connected with the safety valve that surges, flutter valve, pumping valve and
Top connects tree cap.
2. compact coaxial double-pipe injection-production well mouth device according to claim 1, it is characterised in that: lower layer's oil pipe suspension,
Upper layer boll-weevil hanger outer circumference surface is equipped with the nonmetallic sealing ring sealed for annular space between tubing head four-way inner wall.
3. compact coaxial double-pipe injection-production well mouth device according to claim 1, it is characterised in that: combined flat plate gate valve
Respectively for setting through-hole on ontology, tubing head four-way, it is bolted.
4. compact coaxial double-pipe injection-production well mouth device according to claim 1, it is characterised in that: lower layer's oil pipe suspension
Device is connect with lower layer's tubing round thread, and upper layer boll-weevil hanger is connect with upper layer tubing round thread.
5. compact coaxial double-pipe injection-production well mouth device according to claim 1, it is characterised in that: the production of upper layer oil pipe
Valve, casing valve pass through flanged joint with tubing head four-way outer circumference surface respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821727430.3U CN208966249U (en) | 2018-10-24 | 2018-10-24 | A kind of compact coaxial double-pipe injection-production well mouth device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821727430.3U CN208966249U (en) | 2018-10-24 | 2018-10-24 | A kind of compact coaxial double-pipe injection-production well mouth device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966249U true CN208966249U (en) | 2019-06-11 |
Family
ID=66761166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821727430.3U Active CN208966249U (en) | 2018-10-24 | 2018-10-24 | A kind of compact coaxial double-pipe injection-production well mouth device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966249U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115929246A (en) * | 2023-03-13 | 2023-04-07 | 威飞海洋装备制造有限公司 | Integral double-barrelled well head and production tree device |
| CN115949364A (en) * | 2023-03-09 | 2023-04-11 | 威飞海洋装备制造有限公司 | Velocity string, wellhead device thereof and coiled tubing lowering method |
-
2018
- 2018-10-24 CN CN201821727430.3U patent/CN208966249U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949364A (en) * | 2023-03-09 | 2023-04-11 | 威飞海洋装备制造有限公司 | Velocity string, wellhead device thereof and coiled tubing lowering method |
| CN115949364B (en) * | 2023-03-09 | 2023-06-09 | 威飞海洋装备制造有限公司 | Speed pipe column, wellhead device thereof and coiled tubing lowering method |
| CN115929246A (en) * | 2023-03-13 | 2023-04-07 | 威飞海洋装备制造有限公司 | Integral double-barrelled well head and production tree device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204041022U (en) | A kind of twofold whirl water pumping gas production downhole tool | |
| CN201963283U (en) | Double tubing high temperature gas lift process string | |
| CN203655585U (en) | Long plunger type injection-production pump | |
| CN208966249U (en) | A kind of compact coaxial double-pipe injection-production well mouth device | |
| CN103452496B (en) | Integral type of adopting thick oil thermal extraction note automatically switches and produces joint | |
| CN104879097A (en) | Gas well production string provided with double parallel pipes | |
| CN201915930U (en) | Tee joint special for thermal recovery | |
| CN104879098A (en) | Concentric double-pipe gas well production pipe column | |
| CN201225114Y (en) | Downhole hydraulic self-sealing flexible plunger seal oil conduit type well head seal device | |
| CN206522114U (en) | A kind of Simple wellhead apptss | |
| CN108691523A (en) | A kind of concentric little oil pipe gas-lift working barrel and its airlift unit | |
| CN108442916A (en) | Horizontal well bore hole screen casing damage testing tubing string | |
| CN202955049U (en) | Double-barreled water jet pump | |
| CN206801514U (en) | A kind of efficient device for fracturing wellhead | |
| CN203783533U (en) | Oil production system of waterpower oil-submerged pump | |
| CN204804767U (en) | A fishable high-pressure gas injection valve | |
| CN205012973U (en) | Machine pump drainage liquid gas production device | |
| CN209959179U (en) | Exhaust pipe column for deep pumping process | |
| CN117211733A (en) | Reverse circulation hydraulic jet pump | |
| CN201916170U (en) | oil well pump | |
| CN201794557U (en) | Ultrasonic atomization drainer for gas well | |
| CN202108480U (en) | Constant pressure gas discharge wellhead device of oil well sleeve | |
| CN202431258U (en) | Flow string for oil well | |
| CN202483500U (en) | Combined type mandrel hanger | |
| CN202913969U (en) | Large-diameter selective injection and production integrated pipe string for heavy oil wells |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 257000 Dongying District Shengli Industrial Park, Dongying City, Shandong Province, south of South 2 Road and east of West 6 Road Patentee after: Weifei Marine Equipment Manufacturing Co., Ltd. Address before: 257000 Dongying District Shengli Industrial Park, Dongying City, Shandong Province, south of South 2 Road and east of West 6 Road Patentee before: Shandong Kerui Well Control System Manufacturing Co., Ltd. |