CN201915930U - Tee joint special for thermal recovery - Google Patents
Tee joint special for thermal recovery Download PDFInfo
- Publication number
- CN201915930U CN201915930U CN2010206624487U CN201020662448U CN201915930U CN 201915930 U CN201915930 U CN 201915930U CN 2010206624487 U CN2010206624487 U CN 2010206624487U CN 201020662448 U CN201020662448 U CN 201020662448U CN 201915930 U CN201915930 U CN 201915930U
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- China
- Prior art keywords
- passage
- axle center
- heat injection
- chamber
- oil recovery
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Abstract
The utility model discloses a tee joint special for thermal recovery, which comprises a body, wherein an inside flowing channel on which an upper joint, a reducing pipe nipple, a communicating chamber, a heat injecting channel, an oil extracting channel and a reducing joint is arranged on the body; the upper joint is arranged at the upper part of the communicating chamber and is conducted with the communicating chamber through the reducing pipe nipple; the heat injecting channel and the oil extracting channel are arranged at the lower part of the communicating chamber and are respectively conducted with the communicating chamber; the heat injecting channel and the upper joint are coaxially arranged; the oil extracting channel is parallel to the heat injecting channel; the reducing joint is arranged at the bottom of the heat injecting channel; a proper distance is reserved between the axis of the reducing joint and the axis of the heat injecting channel; and the distance between the axis of the reducing joint and the axis of the upper joint is greater than that between the axis of the oil extracting channel and the axis of the upper joint. By using the tee joint, the requirement of the maritime thick oil thermal recovery and injection recovery integrated technology on the tee joint can be met, and the maritime thick oil thermal recovery and injection recovery integrated process technology can be realized.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly heavy crude heat extraction lifting down-hole string is that a kind of thermal production well notes are adopted the special three-way that connects on the integrated pipe column.
Background technology
Notes are adopted the integrated pipe column technology because can significantly reduce the job execution workload, alleviate the cold damage to the stratum, save cost, are more and more paid attention in heavy crude heat extraction is handled up construction and use.The notes that use in the oil field, land are adopted the integrated pipe column technology and are based upon on the sucker rod pumping pump foundation, so can't be used in the marine thermal production well.
Owing to be subjected to the restriction of thermal recovery artificial lifting way, present marine thermal recovery notes are adopted integrated pipe column technology and can only be adopted Y to divide the electric submersible pump tubing string.Threeway (Y joint) and electric submersible pump are that the important component part of adopting integrated pipe column is annotated in marine thermal recovery, yet marine existing threeway at present can't be born high temperature, and because the high temperature electric submersible pump is huger than conventional electric submersible pump on volume, the threeway side pipe can not connect the high temperature electric submersible pump and be lowered to sleeve pipe, annotates the requirement of adopting integrated pipe column technology so it structurally also can't satisfy marine thermal recovery.
At As-Is, on common threeway basis, development and Design the thermal recovery special three-way, on its resistance to elevated temperatures, done significant improvement, adopted the refractory seals technology, can bear the high temperature of 300 ℃ of thermal recoveries, and structurally redesign, make its side pipe can connect the high temperature electric submersible pump, be lowered to 9-smoothly
5In/8 sleeve pipes, satisfy marine thermal recovery and annotate the requirement of adopting integrated pipe column technology.
Summary of the invention
At the problem that prior art exists, the purpose of this utility model provides and a kind ofly can satisfy marine thermal recovery and annotate and adopt the integrated pipe column technological requirement, realizes that marine thermal recovery is annotated to adopt incorporate thermal recovery special three-way.
A kind of thermal recovery special three-way of the present utility model comprises: body offers the internal fluid passageways that forms top connection, reducing pipe nipple, is communicated with chamber, heat injection passage, oil recovery passage and reducer union on described body; Top connection is arranged on the top that is communicated with chamber, and is communicated with chamber by the reducing pipe nipple with this and is conducted; Heat injection passage and oil recovery passage are arranged on the bottom of described connection chamber, and are conducted with the described chamber that is communicated with respectively, described heat injection passage and the coaxial setting of described top connection, and described oil recovery passage and described heat injection channel parallel are provided with; Reducer union is arranged on the bottom of described heat injection passage, the axle center of the axle center of described reducer union and described heat injection passage has suitable distance, and the distance in the axle center of described reducer union and the axle center of described top connection is greater than the distance in the axle center of the axle center of described oil recovery passage and described top connection.
Preferably, in described heat injection passage, also be provided with the step that is located that is located blanking plug, described blanking plug has lower end cap, lower end cap is provided with wire joint, described lower end cap is provided with and may be seated in the described boss that is located on the step, the described end face that is located step that is seated in of described boss is provided with end face seal, also is provided with the high-temperature resistant rubber sealing on described lower end cap.
Preferably, be connected with in described oil recovery passage bottom and allow that fluid is from the one way valve of described oil recovery passage to described connection chamber one-way flow.
The beneficial effects of the utility model: the utility model is provided with reducer union by the bottom at the heat injection passage, make the axle center of radius joint and the axle center of heat injection passage have suitable distance, simultaneously, the distance in the axle center of reducer union and the axle center of top connection is greater than the distance in the axle center of the axle center of oil recovery passage and top connection, like this, just electric submersible pump can be installed in the bottom of oil recovery passage, thereby carrying electric submersible pump goes into the well, satisfy marine heavy crude heat extraction and annotate and adopt the requirement of integrated technique, realize that marine heavy crude heat extraction is annotated to adopt integrating technology threeway.In addition,, can bear 300 ℃ of high temperature of thermal recovery, therefore can be connected on the heat injection tubing string because the utility model adopts refractory seals.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of blanking plug;
Fig. 3 is located structural representation in the heat injection passage for blanking plug.
The specific embodiment
The specific embodiment
Shown in Fig. 1～3, the utility model thermal recovery special three-way mainly comprises top connection 2, the reducing pipe nipple 3 that is formed on the body 1, the internal fluid passageways that is communicated with chamber 4, heat injection passage 5, oil recovery passage 6 and reducer union 7.
The utility model threeway integral body is one cylindrical, and without screw thread is threaded, and internal fluid passageways is the cylinder of emptying formation, and shell body has four grooves to be used to place cable, and groove has 5 place's bolts hole, is used for fixing cable; The upper end of top connection 2 has 4
1/
2" API oil pipe internal thread can be connected 4
1/
2" on the tubing string.
Top connection 2 is arranged on the top that is communicated with chamber 4, and by reducing pipe nipple 3 be communicated with chamber 3 and be conducted.Heat injection passage 5 and oil recovery passage 6 are arranged on the bottom that is communicated with chamber 4, and are conducted heat injection passage 5 and top connection 2 coaxial settings respectively at being communicated with chamber 4.Oil recovery passage 6 bottoms are connected with allows that fluid is from the one way valve 10 of oil recovery passage 6 to connection chamber 4 one-way flow.
Oil recovery passage 6 be arranged in parallel with heat injection passage 5, and in the utility model, the distance in the axle center of the two is 96mm.Reducer union 7 is arranged on the bottom of heat injection passage 5, and the axle center of the axle center of reducer union 7 and heat injection passage 5 has suitable distance, and in the utility model, this distance is about 10mm.The distance in the axle center of the axle center of reducer union 7 and top connection 2 is greater than the distance in the axle center of the axle center of oil recovery passage 6 and top connection 2.Like this, just can guarantee electric submersible pump is arranged on the bottom of oil recovery passage 6, go into the well, satisfy marine heavy crude heat extraction and annotate and adopt the requirement of integrated technique, realize that marine heavy crude heat extraction is annotated to adopt integrating technology threeway thereby carry electric submersible pump.
Shown in Fig. 1～3, in heat injection passage 5, also be provided be located blanking plug 9 be located step 8, blanking plug 9 has lower end cap 91, lower end cap 91 is provided with wire joint 92, lower end cap 91 is provided with and may be seated in the boss 93 that is located on the step 8, the end face that is located step 8 that is seated in of boss 93 is provided with end face seal 94, also is provided with high-temperature resistant rubber sealing 95 on lower end cap 91.Therefore the utility model can bear 300 ℃ of high temperature of thermal recovery, thereby can be connected on the heat injection tubing string owing to adopt the high-temperature resistant rubber sealing.
Claims (3)
1. a thermal recovery special three-way is characterized in that, comprising: body offers the internal fluid passageways that forms top connection, reducing pipe nipple, is communicated with chamber, heat injection passage, oil recovery passage and reducer union on described body; Top connection is arranged on the top that is communicated with chamber, and is communicated with chamber by the reducing pipe nipple with this and is conducted; Heat injection passage and oil recovery passage are arranged on the bottom of described connection chamber, and are conducted with the described chamber that is communicated with respectively, described heat injection passage and the coaxial setting of described top connection, and described oil recovery passage and described heat injection channel parallel are provided with; Reducer union is arranged on the bottom of described heat injection passage, the axle center of the axle center of described reducer union and described heat injection passage has suitable distance, and the distance in the axle center of described reducer union and the axle center of described top connection is greater than the distance in the axle center of the axle center of described oil recovery passage and described top connection.
2. thermal recovery special three-way as claimed in claim 1, it is characterized in that, in described heat injection passage, also be provided with the step that is located that is located blanking plug, described blanking plug has lower end cap, lower end cap is provided with wire joint, described lower end cap is provided with and may be seated in the described boss that is located on the step, and the described end face that is located step that is seated in of described boss is provided with end face seal, also is provided with the high-temperature resistant rubber sealing on described lower end cap.
3. thermal recovery special three-way as claimed in claim 1 or 2 is characterized in that, is connected with in described oil recovery passage bottom to allow that fluid is from the one way valve of described oil recovery passage to described connection chamber one-way flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206624487U CN201915930U (en) | 2010-12-15 | 2010-12-15 | Tee joint special for thermal recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206624487U CN201915930U (en) | 2010-12-15 | 2010-12-15 | Tee joint special for thermal recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915930U true CN201915930U (en) | 2011-08-03 |
Family
ID=44415732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206624487U Expired - Fee Related CN201915930U (en) | 2010-12-15 | 2010-12-15 | Tee joint special for thermal recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915930U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364044A (en) * | 2011-11-21 | 2012-02-29 | 中国海洋石油总公司 | Double-channel injection and production switching device |
| CN102877798A (en) * | 2012-10-19 | 2013-01-16 | 元路 | Multi-tube coaxial tubing coupling |
| CN111997577A (en) * | 2020-03-25 | 2020-11-27 | 中国海洋石油集团有限公司 | Heat-insulation type canned electric submersible pump injection-production integrated tubular column structure and technological method |
| CN113356815A (en) * | 2021-03-01 | 2021-09-07 | 中海油能源发展股份有限公司 | Heat-insulation straight-hole injection-production Y joint and use method thereof |
-
2010
- 2010-12-15 CN CN2010206624487U patent/CN201915930U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364044A (en) * | 2011-11-21 | 2012-02-29 | 中国海洋石油总公司 | Double-channel injection and production switching device |
| CN102877798A (en) * | 2012-10-19 | 2013-01-16 | 元路 | Multi-tube coaxial tubing coupling |
| CN111997577A (en) * | 2020-03-25 | 2020-11-27 | 中国海洋石油集团有限公司 | Heat-insulation type canned electric submersible pump injection-production integrated tubular column structure and technological method |
| CN111997577B (en) * | 2020-03-25 | 2022-05-20 | 中国海洋石油集团有限公司 | Injection-production integrated tubular column structure of heat-insulation canned electric submersible pump and technological method |
| CN113356815A (en) * | 2021-03-01 | 2021-09-07 | 中海油能源发展股份有限公司 | Heat-insulation straight-hole injection-production Y joint and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20110803 Termination date: 20181215 |