CN205154091U - Concentric dual tubing oil recovery cross and production tree - Google Patents
Concentric dual tubing oil recovery cross and production tree Download PDFInfo
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- CN205154091U CN205154091U CN201520994081.1U CN201520994081U CN205154091U CN 205154091 U CN205154091 U CN 205154091U CN 201520994081 U CN201520994081 U CN 201520994081U CN 205154091 U CN205154091 U CN 205154091U
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- oil recovery
- oil
- interior pipe
- outer tube
- hanger
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Abstract
The utility model provides a concentric dual tubing oil recovery cross and production tree, the concentric dual tubing oil recovery cross of is including the body that is equipped with vertical passage, through step cooperation installation inner tube hanger in the vertical passage, inner tube hanger upper end is through pressing the cap to compress tightly relatively fixed and inner tube hanger and pressure cap hole constitution inner tube oil recovery passageway with its and body, constitute the outer tube oil recovery passageway of circumference annular space between inner tube hanger lower part and the body, pressing and being equipped with the side opening on the body of cap, the left and right sides of body is equipped with inner tube export and the outer tube export of recovering the oil of recovering the oil respectively, and wherein the inner tube recovers the oil the export through pressing cap side opening and inner tube oil recovery passageway intercommunication, and the outer tube recovers the oil the export and communicates with outer tube oil recovery passageway. The utility model has the advantages of it is following: 1 )The appearance structure is unanimous basically with conventional production tree, and it is highly little to have whole, advantages such as simple to operate. 2 )Improve the design of the big cross of sleeve pipe for the little cross structure of recovering the oil, practiced thrift the cost. 3 ) reasonable in design, compact structure can realize the layering simultaneously and annotate the function of adopting.
Description
Technical field
The utility model relates to oil and gas development apparatus field, is specially a kind of the concentric double pipe oil recovery four-way and the production tree that are applied to wellhead assembly.
Background technology
Concentric double pipe oil recovery technique is mainly used in oil gas field separate zone production work condition environment, and main employing is pair four-way structures at present, and have dimension volume large, cost is high, installs the shortcomings such as inconvenient.Prior art primary structure is increase four-way junction of casing on casing head top, and bottom is for hanging outer tube boll-weevil hanger, and top is for hanging interior pipe boll-weevil hanger.The parts such as then crossover flange is installed successively in top, internal control gate valve.The whole height of production tree is large, and installation and maintenance are inconvenient, are not suitable for promoting the use of on a large scale.
Utility model content
The purpose of this utility model is exactly the defect existed for prior art, there is provided that a kind of structure is simple, the security maintenance four-way of concentric double pipe oil recovery easily and install the production tree of above-mentioned four-way, it can reduce production tree whole height, reduces costs, and convenient for installation and maintenance.
Concentric double pipe oil recovery four-way technical scheme: comprise the body being provided with vertical passageway, is coordinated by step in described vertical passageway and installs interior pipe hanger; Itself and body to compress relative fixing and interior pipe hanger and pressure cap endoporus form interior pipe oil recovery passage by described interior pipe hanger upper end by pressure cap; The outer tube oil recovery passage of circumferential annular space is formed between described interior pipe hanger bottom and body; The body of described pressure cap is provided with side opening, the left and right sides of described body is respectively equipped with interior pipe oil recovery outlet and outer tube oil recovery outlet, wherein said interior pipe recovers the oil outlet by pressure cap side opening and described interior pipe oil recovery channel connection, and described outer tube recovers the oil and exports and described outer tube oil recovery channel connection.
Such scheme more preferably,
Described interior pipe hanger is arranged in the vertical passageway of body by the bracing ring that sets gradually up and down, hanger sealing ring.
The production tree technical scheme of installing above-mentioned concentric double pipe oil recovery four-way is: comprise crossover flange, casing head and sleeve pipe that concentric double pipe oil recovery four-way and its lower end connect successively, described concentric double pipe oil recovery four-way upper end connects flat gate valve and tree cap successively, and the outer tube oil recovery outlet of described concentric double pipe oil recovery four-way both sides, interior pipe are recovered the oil to export and all connected flat gate valve and choke valve.
Compared with prior art, the utility model has the following advantages:
1) advantages such as the contour structures of this cover concentric double pipe production tree is basically identical with conventional production tree, has whole height little, easy for installation.
2) design of sleeve pipe big four is improved to little four-way structure of recovering the oil, saves cost.
3) reasonable in design, compact conformation, can realize the function of demixing injection-production simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is application schematic diagram of the present utility model;
" sleeve pipe, 2,41/2 " oil pipe, 3,23/8 " oil pipe; 4,7 " casing head in figure: 1,7,5, crossover flange, 6,29/16 " flat gate valve; 7,41/16 " tree cap, 8,41/16 " flat gate valve, 9, dual tubing oil recovery four-way; 91, oil recovery four-way body, 92, interior pipe hanger, 93, hanger sealing ring; 94, bracing ring; 95, pressure cap, 96, interior pipe recovers the oil outlet, 97, outer tube recovers the oil outlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment 1
See Fig. 1, a kind of concentric double pipe oil recovery four-way, comprises the oil recovery four-way body 91 being provided with vertical passageway, and interior pipe hanger 92 is arranged in vertical passageway by the bracing ring 94 that sets gradually up and down, hanger sealing ring 93; Itself and oil recovery four-way body 91 to compress relative fixing and interior pipe hanger 92 and pressure cap 95 endoporus form interior pipe oil recovery passage by interior pipe hanger 92 upper end by pressure cap 95; The outer tube oil recovery passage of circumferential annular space is formed between interior pipe hanger 92 bottom and oil recovery four-way body 91; The body of pressure cap 95 is provided with side opening, the left and right sides of oil recovery four-way body 91 is respectively equipped with interior pipe oil recovery outlet 96 and outer tube oil recovery outlet 97, wherein interior pipe oil recovery outlet 96 is by pressure cap side opening and interior pipe oil recovery channel connection, outer tube oil recovery outlet 97 and outer tube oil recovery channel connection.
Embodiment 2
See Fig. 2, a kind of production tree, comprise crossover flange, casing head and sleeve pipe that concentric double pipe oil recovery four-way in embodiment 1 and its lower end connect successively, concentric double pipe oil recovery four-way upper end connects flat gate valve and tree cap successively, and the outer tube oil recovery outlet of concentric double pipe oil recovery four-way both sides, interior pipe are recovered the oil to export and all connected flat gate valve and choke valve.
During use, internal oil pipe is connected with interior pipe hanger, external oil pipe is sleeved on internal oil pipe is outside and upper end is suspended on crossover flange, internal oil pipe and interior pipe oil recovery passage UNICOM, external oil pipe and outer tube oil recovery channel connection; Form annular space space between internal oil pipe and external oil pipe and be wherein interval with two packers, the function of production tree concentric double pipe, oil production by layer can be realized.
For those skilled in the art, under the prerequisite not departing from the utility model principle, likely to concrete size, or partial structurtes make some improvements and modifications, and these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a concentric double pipe oil recovery four-way, is characterized in that: comprise the body being provided with vertical passageway, is coordinated install interior pipe hanger in described vertical passageway by step; Itself and body to compress relative fixing and interior pipe hanger and pressure cap endoporus form interior pipe oil recovery passage by described interior pipe hanger upper end by pressure cap; The outer tube oil recovery passage of circumferential annular space is formed between described interior pipe hanger bottom and body; The body of described pressure cap is provided with side opening, the left and right sides of described body is respectively equipped with interior pipe oil recovery outlet and outer tube oil recovery outlet, wherein said interior pipe recovers the oil outlet by pressure cap side opening and described interior pipe oil recovery channel connection, and described outer tube recovers the oil and exports and described outer tube oil recovery channel connection.
2. concentric double pipe oil recovery four-way according to claim 1, is characterized in that: described interior pipe hanger is arranged in the vertical passageway of body by the bracing ring that sets gradually up and down, hanger sealing ring.
3. the production tree of the concentric double pipe oil recovery four-way described in claim 1 or 2 is installed, it is characterized in that: comprise crossover flange, casing head and sleeve pipe that concentric double pipe oil recovery four-way and its lower end connect successively, described concentric double pipe oil recovery four-way upper end connects flat gate valve and tree cap successively, and the outer tube oil recovery outlet of described concentric double pipe oil recovery four-way both sides, interior pipe are recovered the oil to export and all connected flat gate valve and choke valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520994081.1U CN205154091U (en) | 2015-12-05 | 2015-12-05 | Concentric dual tubing oil recovery cross and production tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520994081.1U CN205154091U (en) | 2015-12-05 | 2015-12-05 | Concentric dual tubing oil recovery cross and production tree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154091U true CN205154091U (en) | 2016-04-13 |
Family
ID=55689799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520994081.1U Active CN205154091U (en) | 2015-12-05 | 2015-12-05 | Concentric dual tubing oil recovery cross and production tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154091U (en) |
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2015
- 2015-12-05 CN CN201520994081.1U patent/CN205154091U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 257000 Shengli Industrial Park, Dongying City, Shandong Province, South of the Second South Road and East of the Sixth West Road Patentee after: Weifei Marine Equipment Manufacturing Co., Ltd. Address before: 257000 Shengli Industrial Park, Dongying City, Shandong Province, South of the Second South Road and East of the Sixth West Road Patentee before: Shandong Kerui Well Control System Manufacturing Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |