CN206845113U - A kind of two channel joint - Google Patents
A kind of two channel joint Download PDFInfo
- Publication number
- CN206845113U CN206845113U CN201720640659.2U CN201720640659U CN206845113U CN 206845113 U CN206845113 U CN 206845113U CN 201720640659 U CN201720640659 U CN 201720640659U CN 206845113 U CN206845113 U CN 206845113U
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- China
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- lower contact
- connection
- top connection
- channel joint
- central tube
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Abstract
The utility model discloses a kind of two channel joint, the two channel joint includes top connection, central tube and lower contact, and top connection connects to form liquid main channel with central tube, formation annulus access spaced apart between the outer wall of central tube and the inwall of lower contact.Two channel joint provided by the utility model can provide two independent passages in the case where bunging down, and then can carry out different operating types simultaneously, improve oil recovery efficiency.
Description
Technical field
It the utility model is related to technical field of petroleum extraction, more particularly to a kind of two channel joint.
Background technology
In oil field development, the situation of the more formation productions of a bite oil well and operation is very universal, such as has two stratum, upper strata
Need to recover the oil and produce, lower floor needs water filling.At present, conventional flow string can only provide a fluid passage, can not meet two
Stratum carries out different operating types simultaneously, just different stratum can only can so be carried out different by boring two mouthfuls of wells
Operation so that production efficiency is relatively low, and development cost is higher.The especially exploitation of offshore oilfield, is limited by drilling platforms, well head number
Measure limited, the thus caused influence to development efficiency is just particularly acute.
Utility model content
For overcome the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of two channel joint, its
Two independent passages can be provided in the case where bunging down, and then different operating types can be carried out simultaneously, improve and recover the oil
Efficiency.
One of the purpose of this utility model adopts the following technical scheme that realization：
A kind of two channel joint, including top connection, central tube and lower contact, the top connection connect shape with the central tube
Into liquid main channel, formation annulus access spaced apart between the inwall of the outer wall of the central tube and the lower contact.
Further, the internal diameter of the top connection is less than the internal diameter of the lower contact.
Further, the outer wall of the top connection lower end is connected with the inwall of the lower contact upper end, under the top connection
The inwall at end is connected with the central tube.
Further, the lower contact includes lower contact main body and the connecting portion located at the lower contact main body upper end, institute
Connecting portion is stated to be connected with the top connection.
Further, the lower contact is provided with axial pass trough, and the connecting portion is provided with and connected with the axial pass trough
Opening.
Further, the connecting portion includes multiple radial directions from the lower contact main body lateral edges to the lower contact main body
The connection strap that direction is extended, multiple connection straps are arranged at intervals, and the top of the connection strap connects with the top connection
Connect.
Further, the quantity of the connection strap is 3.
Further, the connection strap is connected with the outer wall thread of the top connection lower end.
Further, in addition to fastener, the connection strap are fixedly connected by the fastener with the top connection.
Further, the inwall of the top connection lower end is threadedly coupled with the central tube.
Compared with prior art, the beneficial effects of the utility model are：
The utility model employs above-mentioned technical proposal, and in the case where carrying out different handling situations, the two channel joint passes through
It is connected with other seal modules such as packer of oil pipe and lower end, liquid main channel is connected with oil pipe, and annulus access
Connect with oil pipe-casing annulus of packer and other corresponding components, and be connected by oil pipe-casing annulus with ground,
Realize the separate of two passages so that the medium of two-way is independent of each other, so as to realize the progress bidirectional fluid fortune in same well
Capable pattern, cost is not only saved, and substantially increase oil recovery efficiency.In addition, lower contact rises during tubing string tripping in
To guide effect, make the smooth tripping in of tubing string.The utility model is not only simple in structure, easy to operation and manufacturing cost is low, Neng Gouying
For in the unconventional same well water acquisition of oil well and the new-type operation of water injection work and multilayer sand control+intelligent well completion.
Brief description of the drawings
Fig. 1 is the structural representation for the two channel joint that the embodiment of the utility model one provides, and wherein central tube is not shown；
Fig. 2 is the schematic diagram for the two channel joint that the embodiment of the utility model one provides, and wherein central tube is not shown；
Fig. 3 is the structural representation for the two channel joint that the embodiment of the utility model one provides.
In figure：1st, top connection；2nd, central tube；3rd, lower contact；31st, lower contact main body；32nd, connecting portion；321st, it is open；322、
Connection strap；4th, liquid main channel；5th, annulus access；6th, fastener.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further, it is necessary to explanation is,
On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
Fig. 1-Fig. 3 is refer to, the utility model embodiment provides a kind of two channel joint, including top connection 1, central tube
2 and lower contact 3, top connection 1 connect to form liquid main channel 4 with central tube 2, the outer wall of central tube 2 and the inwall of lower contact 3 it
Between it is spaced apart formation annulus access 5.
The utility model employs above-mentioned technical proposal, and in the case where carrying out different handling situations, the two channel joint passes through
It is connected with other seal modules such as packer of oil pipe and lower end, liquid main channel 4 is connected with oil pipe, and annulus access
5 connect with oil pipe-casing annulus of packer and other corresponding components, and are connected by oil pipe-casing annulus with ground,
Realize the separate of two passages so that the medium of two-way is independent of each other, so as to realize the progress bidirectional fluid fortune in same well
Capable pattern, cost is not only saved, and substantially increase oil recovery efficiency.In addition, lower contact 3 rises during tubing string tripping in
To guide effect, make the smooth tripping in of tubing string.The utility model is not only simple in structure, easy to operation and manufacturing cost is low, Neng Gouying
For in the unconventional same well water acquisition of oil well and the new-type operation of water injection work and multilayer sand control+intelligent well completion.
Further, the internal diameter of top connection 1 is less than the internal diameter of lower contact 3.
Further, the outer wall of the lower end of top connection 1 is connected with the inwall of the upper end of lower contact 3, the inwall of the lower end of top connection 1 with
Central tube 2 connects.
Further, lower contact 3 includes lower contact main body 31 and the connecting portion 32 located at the upper end of lower contact main body 31, connection
Portion 32 is connected with top connection 1.
Further, lower contact 3 is provided with axial pass trough, and connecting portion 32 is provided with the opening 321 connected with axial pass trough,
Annulus access 5 is connected by the opening 321 with oil pipe-casing annulus of other corresponding components.
Further, connecting portion 32 prolongs including multiple from the downward radial direction of adapter body 31 of the lateral edges of lower contact main body 31
The connection strap 322 stretched, multiple connection straps 322 are arranged at intervals, and the top of connection strap 322 is connected with top connection 1.Further
Ground, connection strap 322 are connected with the outer wall thread of the lower end of top connection 1, and the quantity of connection strap 322 is 3.This structure can either be real
The connection of existing top connection 1 and lower contact 3, and can enough make annulus access 5 pass through the gap between adjacent connection strap 322 and other phases
Answer oil pipe-casing annulus connection of part.
Further, the two channel joint also includes fastener 6, and connection strap 322 is fixed by fastener 6 and top connection 1
Connection, can so prevent from being threadedly coupled between top connection 1 and lower contact 3 built on the sand and caused by surprisingly loosen.In this practicality
In new embodiment, fastener 6 is screw.
Further, the inwall of the lower end of top connection 1 is threadedly coupled with central tube 2, convenient dismounting.
It should be understood that the annulus access 5 may be used as fluid passage, it is also used as controlling passing through for pipeline and cable
Passage.In the present embodiment, illustrated so that annulus access 5 is used as fluid passage as an example.In use, noted in underground
The water entered is the annular space from this instrument and sleeve pipe, is injected into by annulus access 5 in stratum；The oil exploited is then to pass through liquid
Ground is arrived in the exploitation of body main channel 4.The threaded upper ends of top connection 1 are connected with oil pipe, and the lower end of lower contact 3 connects other oil recovery parts,
Liquid main channel 4 is set to be connected with oil pipe, and annulus access 5 connects with oil pipe-casing annulus of packer and other corresponding components
Get up, and be connected by oil pipe-casing annulus with ground, realize the separate of two passages so that the mutual not shadow of the medium of two-way
Ring, so as to realize the pattern that bidirectional fluid operation is carried out in same well, not only save cost, and substantially increase oil recovery
Efficiency.
Above-mentioned embodiment is only preferred embodiment of the present utility model, it is impossible to is protected with this to limit the utility model
Scope, the change of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model scope claimed.
Claims (10)
- A kind of 1. two channel joint, it is characterised in that including top connection, central tube and lower contact, the top connection with it is described in Heart pipe connects to form liquid main channel, formation spaced apart between the outer wall of the central tube and the inwall of the lower contact Annulus access.
- 2. two channel joint as claimed in claim 1, it is characterised in that the internal diameter of the top connection is less than the lower contact Internal diameter.
- 3. two channel joint as claimed in claim 1, it is characterised in that the outer wall of the top connection lower end and the lower contact The inwall connection of upper end, the inwall of the top connection lower end are connected with the central tube.
- 4. two channel joint as claimed in claim 3, it is characterised in that the lower contact includes lower contact main body and located at institute The connecting portion of lower contact main body upper end is stated, the connecting portion is connected with the top connection.
- 5. two channel joint as claimed in claim 4, it is characterised in that the lower contact is provided with axial pass trough, the company Socket part is provided with the opening connected with the axial pass trough.
- 6. two channel joint as claimed in claim 4, it is characterised in that the connecting portion includes multiple from the lower contact master The connection strap that lateral edge extends to the lower contact main body radial direction, multiple connection straps are arranged at intervals, and institute The top for stating connection strap is connected with the top connection.
- 7. two channel joint as claimed in claim 6, it is characterised in that the quantity of the connection strap is 3.
- 8. two channel joint as claimed in claim 4, it is characterised in that the connection strap and the outer wall of the top connection lower end Threaded connection.
- 9. two channel joint as claimed in claim 4, it is characterised in that also pass through described including fastener, the connection strap Fastener is fixedly connected with the top connection.
- 10. two channel joint as claimed in claim 3, it is characterised in that the inwall of the top connection lower end and the center Pipe screw thread connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720640659.2U CN206845113U (en) | 2017-06-02 | 2017-06-02 | A kind of two channel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720640659.2U CN206845113U (en) | 2017-06-02 | 2017-06-02 | A kind of two channel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845113U true CN206845113U (en) | 2018-01-05 |
Family
ID=60798315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720640659.2U Active CN206845113U (en) | 2017-06-02 | 2017-06-02 | A kind of two channel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206845113U (en) |
-
2017
- 2017-06-02 CN CN201720640659.2U patent/CN206845113U/en active Active
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