CN208122838U - A kind of three pipe water injection strings - Google Patents
A kind of three pipe water injection strings Download PDFInfo
- Publication number
- CN208122838U CN208122838U CN201820494571.9U CN201820494571U CN208122838U CN 208122838 U CN208122838 U CN 208122838U CN 201820494571 U CN201820494571 U CN 201820494571U CN 208122838 U CN208122838 U CN 208122838U
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- CN
- China
- Prior art keywords
- oil pipe
- sucker rod
- water injection
- pipe
- plunger
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- 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 - Fee Related
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Abstract
A kind of three pipe water injection strings, the utility model category oil field equipment technical field, more particularly, to a kind of water injection string.The utility model includes casing, outer oil pipe, sucker rod oil pipe, concentric water segregator, oil pipe adaptor, insertion assembly and packer.The ring set space that the utility model is utilized respectively in three pipes is oriented water filling.Can three pipes simultaneously to three different intervals water fillings, solve the continuous 3000m connectivity problem of common sucker rod, be applicable in high pressure water injection 35MPa.Oil pipe adaptor shares the power of sucker rod on oil pipe, and sucker rod is enable to complete deep-well water filling.Insertion assembly is to also ensure between two layers that layer will not be revealed and be gone here and there to water filling in order to guarantee tubing string in tension variations.The utility model structure is simple, cheap, and a variety of oil wells is suitble to use, and value is widelyd popularize.
Description
Technical field
The utility model category oil field equipment technical field, more particularly, to a kind of water injection string.
Background technique
The different types of pipeline used in oil exploitation process：Surface layer petroleum casing pipe protect drilling well, make its avoid by
Shoaling layer and shallow gas pay pollution, other layer weights of support wellhead equipment and retaining sleeve.Technology petroleum casing pipe separates different layers
The pressure in face, so that drilling fluid amount normally circulates and protects production casing.To install anti-bursting device, anti-neglected loading in drilling well
It sets and tail pipe.Oil reservoir petroleum casing pipe exports oil and natural gas in the storage layer under earth's surface.For protecting drilling well, will drill
Mud layering.Drilling well is protected, makes it avoid being polluted by shoaling layer and shallow gas pay, other layers of support wellhead equipment and retaining sleeve
Weight.Technology petroleum casing pipe separates the pressure of different level, so that drilling fluid amount normally circulates and protects production casing.So as to
The anti-bursting device of installation, leak-proof device and tail pipe in drilling well.
But it is filled the water simultaneously to oil well difference interval currently without a kind of method that can be simple and easy, therefore existing
There is an urgent need for a kind of novel technical solutions in technology to solve the problems, such as this.
Utility model content
Technical problem to be solved in the utility model is：A kind of three pipe water injection strings are provided, can three pipes simultaneously to three
Different interval water fillings, solve the continuous 3000m connectivity problem of common sucker rod, and protect sucker rod not because of overweight composite guide mutagens
Shape.
A kind of three pipe water injection strings, including pipeline body, further include concentric roater regulator, oil pipe adaptor, insertion assembly and
Packer；
The pipeline body includes casing, outer oil pipe and sucker rod oil pipe；
Described sleeve pipe, the outer oil pipe and the sucker rod oil pipe are arranged concentrically from outside to inside, the insertion assembly setting
In the pipeline body bottom, the concentric roater regulator, oil pipe adaptor and packer are arranged on the pipeline body；
The concentric roater regulator includes the first central tube and housing, and inner hole is provided on first central tube, described outer
It puts on and is provided with exit orifice；
The oil pipe adaptor includes top connection, short circuit, elastic ferrule, lower contact and the second central tube, the top connection
Match with the sucker rod oil pipe, and connect with second central tube, longitudinal groove, institute are provided on the elastic ferrule
It states elastic ferrule to be socketed between second central tube and the short circuit, the lower contact is connected with second central tube；
The insertion assembly includes that pump barrel, vulcanization sealing, metal sealing, rubber sealing, plunger, pump barrel connector and plunger connect
Head, the vulcanization sealing, metal sealing, rubber sealing are arranged on the plunger, the plunger at one end and sucker rod oil
Pipe connection, the other end are fixedly connected with the plunger connector, and the pump barrel is provided with the pump barrel close to the side of plunger connector
Connector.
The sucker rod tubing length is greater than the outer oil pipe.
Vulcanize one layer of rubber in the concentric roater regulator.
The other side of the pump barrel is provided with pump barrel box cupling.
Through the above design, the utility model can be brought the following benefits：It can be utilized respectively in three pipes
Ring set space is oriented water filling, can three pipes simultaneously to three different intervals water fillings, oil pipe adaptor shares the power of sucker rod
Onto oil pipe, sucker rod is enable to complete deep-well water filling.Vulcanize one layer of rubber in injection well downhole flow regulator, can prevent water flow from directly going out oil
Pipe will cover pipe inspection damage.Being inserted into assembly is to guarantee that tubing string is also ensured in tension variations and fill the water between two layers
It will not reveal and go here and there layer.
Detailed description of the invention
The utility model is further described below in conjunction with the drawings and specific embodiments：
Fig. 1 is a kind of three pipe water injection string schematic cross-sectional views of the utility model.
Fig. 2 is a kind of pipeline body cross-sectional view of three pipe water injection strings of the utility model.
Fig. 3 is a kind of structural schematic diagram of the concentric roater regulator of three pipe water injection strings of the utility model.
Fig. 4 is a kind of structural schematic diagram of the oil pipe adaptor of three pipe water injection strings of the utility model.
Fig. 5 is a kind of structural schematic diagram of the insertion assembly of three pipe water injection strings of the utility model.
Fig. 6 is a kind of switch plunger structure diagram of three pipe water injection strings of the utility model.
In figure, 1- casing, 2- outer oil pipe, 3- sucker rod oil pipe, 4- concentric roater regulator, 5- oil pipe adaptor, 6- insertion are total
At, 7- packer, the first central tube of 41-, 42- housing, 43- inner hole, 44- exit orifice, 51- top connection, 52- be shorted, 53- elastic card
Set, 54- lower contact, the second central tube of 55-, 61- pump barrel, 62- vulcanize sealing, 63- metal sealing, 64- rubber sealing, 65- column
Plug, 66- pump barrel connector, 67- plunger connector, 68- pump barrel box cupling.
Specific embodiment
A kind of three pipe water injection strings, including pipeline body further include as shown in figs 1 to 6 that concentric roater regulator 4, oil pipe are held
Connect device 5, insertion assembly 6 and packer 7；
The pipeline body includes casing 1, outer oil pipe 2 and sucker rod oil pipe 3；
Described sleeve pipe 1, the outer oil pipe 2 and the sucker rod oil pipe 3 are arranged concentrically from outside to inside, the insertion assembly 6
Setting is arranged in the pipeline body bottom, the concentric roater regulator 4, oil pipe adaptor 5 and packer 7 in the pipeline body
On；
The concentric roater regulator 4 includes the first central tube 41 and housing 42, is provided with inner hole 43 on first central tube,
Exit orifice 44 is provided on the housing 42；
The oil pipe adaptor 5 includes top connection 51, is shorted 52, elastic ferrule 53, lower contact 54 and the second central tube 55,
The top connection 51 matches with the sucker rod oil pipe 3, and connect with second central tube, sets on the elastic ferrule 53
It is equipped with longitudinal groove, the elastic ferrule 53 is socketed between second central tube 55 and the short circuit 52, the lower contact
It is connected with second central tube 55；
The insertion assembly 6 includes pump barrel 61, vulcanization sealing 62, metal sealing 63, rubber sealing 64, plunger 65, pump barrel
Connector 66 and plunger connector 67, the vulcanization sealing 62, metal sealing 63, rubber sealing 64 are arranged on the plunger 65, institute
65 one end of plunger and the sucker rod oil pipe 3 connection are stated, the other end is fixedly connected with the plunger connector 67, and the pump barrel 61 leans on
The side of nearly plunger connector 67 is provided with the pump barrel connector 66.
3 length of sucker rod oil pipe is greater than the outer oil pipe 2.
Vulcanize one layer of rubber in the concentric roater regulator 4.
The other side of the pump barrel 61 is provided with pump barrel box cupling 68.
The pipeline body of the utility model refers to casing 1, outer oil pipe 2 and sucker rod oil pipe 3, is utilized respectively in three pipes
Ring set space is oriented water filling.Can three pipes simultaneously to three different intervals water fillings, solve the continuous 3000m of common sucker rod and connect
Problem is connect, high pressure water injection 35MPa is applicable in.
The effect of oil pipe adaptor 5, sucker rod oil pipe act on lowest level (2500~3000m of length), so in three pipes
Middle length longest, but because the wall thickness (outer diameter of sucker rod oil pipe 3：48.3mm, interior latus rectum：40.9mm) and structure (screw thread is anti-
Slide fastener) performance is not enough to support this length, so oil pipe adaptor 5 is needed to share the power of sucker rod in outer oil pipe 2, make
Sucker rod oil pipe 3 can complete deep-well water filling.Pulling force suffered by sucker rod oil pipe 3 is transmitted in outer oil pipe 2, moreover it is possible to increase sucker rod
The depth of falling well of oil pipe 3 is married again the load of internal layer oil pipe on outer layer oil pipe, overcomes because of internal layer tubing bending effect institute
Cause lower end pump line and note plug 65 poor sealing influence.The short circuit 52 of oil pipe adaptor 5 connects outer oil pipe 2；Oil pipe is accepted
The 51 connecting with pumping rod oil pipe 3 of top connection of device 5, (lower end of sucker rod tubing string 3 is connect with insertion assembly 6)；The oil having had connected
Pipe adaptor is transferred to predetermined position, transfers the sucker rod oil pipe 3 connected to close to 2 meters of predetermined position by design requirement
When, weight indicator is observed, is slowly transferred, until showing to have connected when weight indicator to 0 position.Allow if you need to adjust well mouth oil pipe distance
Sucker rod oil pipe 3 is above mentioned, is engaged again with elastic ferrule 53 after adjustment.
The effect of concentric roater regulator 4, concentric roater regulator 4 is that oil pipe annular space≤35MPa high pressure water is sent into bottom, intermediate
Vulcanize one layer of rubber in concentric roater regulator 4 to guarantee that high pressure water impact power will not damage casing 1 by one section of casing, prevent
Water flow directly goes out oil pipe and casing 1 is sprayed damage.It is mainly used for oil gas field water injection string to go into the well in tool, is infused into stratum
Water.Due to tool inner liner rubber layer, effective protection set is injury-free, which be connected in water injection string, and water filling is placed on
Target zone.
It is inserted into the effect of assembly 6, tubing string can extend automatically in receiving≤3000m pulling force and≤35MPa, extend
Amount changes with pressure change, and insertion assembly 6 is to guarantee that tubing string also ensures between two layers in tension variations
Layer will not be revealed and be gone here and there to water filling.And 62,64 3 kinds of metal sealing 63, rubber sealing combined labyrinth and carbon gland modes are sealed using vulcanization,
Ensure the inserting paragraph of sucker rod oil pipe 3 and the leakproofness of pump barrel 61.In use, pump barrel 61 is connected on water injection string, pump line 61
It transfers with tubing string to predetermined position, according to water filling layer projected depth, with 3 tubing string upper end connected pipes adaptor of sucker rod oil pipe
5, the plunger 65 of lower end connection insertion assembly 6, when 1.900 oil pipe column upper ends are engaged with oil pipe adaptor, lower end note plug 65
It is also inserted into pump barrel 61 simultaneously.
Claims (4)
1. a kind of three pipe water injection strings, including pipeline body, it is characterized in that：It further include concentric roater regulator (4), oil pipe adaptor
(5), assembly (6) and packer (7) are inserted into；
The pipeline body includes casing (1), outer oil pipe (2) and sucker rod oil pipe (3)；
Described sleeve pipe (1), the outer oil pipe (2) and the sucker rod oil pipe (3) are arranged concentrically from outside to inside, the insertion assembly
(6) setting is arranged in the pipeline body bottom, the concentric roater regulator (4), oil pipe adaptor (5) and packer (7) in institute
It states on pipeline body；
The concentric roater regulator (4) includes the first central tube (41) and housing (42), is provided with inner hole on first central tube
(43), exit orifice (44) are provided on the housing (42)；
The oil pipe adaptor (5) include top connection (51), be shorted (52), elastic ferrule (53), in lower contact (54) and second
Heart pipe (55), the top connection (51) matches with the sucker rod oil pipe (3), and connect with second central tube, described
It is provided with longitudinal groove on elastic ferrule (53), the elastic ferrule (53) is socketed in second central tube (55) and described short
It connects between (52), the lower contact and second central tube (55) connection；
The insertion assembly (6) includes pump barrel (61), vulcanization sealing (62), metal sealing (63), rubber sealing (64), plunger
(65), pump barrel connector (66) and plunger connector (67), the vulcanization sealing (62), metal sealing (63), rubber sealing (64) are set
It sets on the plunger (65), described plunger (65) one end and the sucker rod oil pipe (3) connection, the other end and the plunger connect
Head (67) is fixedly connected, and the pump barrel (61) is provided with the pump barrel connector (66) close to the side of plunger connector (67).
2. a kind of three pipes water injection string according to claim 1, it is characterized in that：Sucker rod oil pipe (3) length is greater than
The outer oil pipe (2).
3. a kind of three pipes water injection string according to claim 1, it is characterized in that：The vulcanization in the concentric roater regulator (4)
One layer of rubber.
4. a kind of three pipes water injection string according to claim 1, it is characterized in that：The other side of the pump barrel (61) is provided with
Pump barrel box cupling (68).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494571.9U CN208122838U (en) | 2018-04-09 | 2018-04-09 | A kind of three pipe water injection strings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494571.9U CN208122838U (en) | 2018-04-09 | 2018-04-09 | A kind of three pipe water injection strings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208122838U true CN208122838U (en) | 2018-11-20 |
Family
ID=64194920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820494571.9U Expired - Fee Related CN208122838U (en) | 2018-04-09 | 2018-04-09 | A kind of three pipe water injection strings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208122838U (en) |
-
2018
- 2018-04-09 CN CN201820494571.9U patent/CN208122838U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20190409 |