CN101358518B - Heavy oil thermal recovery balanced steam injection and regulation device - Google Patents
Heavy oil thermal recovery balanced steam injection and regulation device Download PDFInfo
- Publication number
- CN101358518B CN101358518B CN 200810139917 CN200810139917A CN101358518B CN 101358518 B CN101358518 B CN 101358518B CN 200810139917 CN200810139917 CN 200810139917 CN 200810139917 A CN200810139917 A CN 200810139917A CN 101358518 B CN101358518 B CN 101358518B
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- pipe
- righting rod
- steam
- heavy oil
- steam injection
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Abstract
A heavy-oil thermal-recovery balance steam-injection adjusting device includes an upper joint, an adjusting ring, a righting rod, a spring, a jacket, a distributed water pipe assembly, a plug and an outer pipe. The distributed water pipe assembly and an outer pipe are connected in turn below the upper joint; the distributed water pipe assembly is a bridge double-pipe double-way structure; a liquid channel with an oil pipe is formed between the inner pipe and the outer pipe of the adjusting device; a liquid channel with a bushing is formed between the inner pipe and the jacket of the adjusting device; the righting rod and the seat of the righting rod are arranged in the inner pipe; the spring and the adjusting ring are arranged in turn on the righting rod; the lower end of the inner pipe is provided with the plug; the upper part of the inner pipe is an internal conical structure. The adjusting device of the invention has the balancing effect of adjusting the steam absorption amount of an inhomogeneous formation and has the characteristics of improving the steam oil displacement efficiency and improving the recovery of oil. The adjusting device is mainly applied to the steam-injection technique of oil thermal-recovery by a horizontal well and can also be used in the layered steam-injection technique of vertical well.
Description
One, technical field
The present invention relates to the steam for thermal recovery of petroleum ancillary facility, particularly a kind of heavy oil thermal recovery balanced steam injection and regulation device.
Two, background technology
At present, oil field petroleum thermal production well, particularly horizontal well thermal recovery generally adopt full pit shaft to annotate vapour, promptly have only a steam (vapor) outlet in whole well section; Because formation heterogeneity, the vapor absorption capacity of each several part there are differences, the well section that vapor absorption capacity is good, and the quantity of steam of injection is big; The well section of vapor absorption capacity difference, the quantity of steam of injection is little, does not even inhale vapour, just more is a problem for horizontal well; Its production capacity can not be brought into play fully, causes exploitation effect bad, and waste steam, wastes energy.
Three, summary of the invention
The purpose of this invention is to provide a kind of heavy oil thermal recovery balanced steam injection and regulation device, adopt Throttle Principle and equipment, when the stratum vapor absorption capacity is big; Steam flow is big, and the chock pressure difference that the automatic distribution regulator of steam place produces is just big, and the venthole of steam adjuster diminishes; Vapor flow rate also diminishes thereupon, otherwise chock pressure difference is little; Steam (vapor) outlet keeps big state, and steam flow also becomes greatly, the quantity of steam relative equilibrium that this just makes the stratum get into; Regulate stratum steam injection profile effectively, improve the production efficiency of heavy oil wells.Thereby, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
Heavy oil thermal recovery balanced steam injection and regulation device of the present invention; Comprise top connection, adjustable ring, righting rod, spring, sheath, distributive pipe assembly, plug and outer tube, be connected with distributive pipe assembly and outer tube under the said top connection in order, said distributive pipe assembly is the two-tube dual channel structure of bridge-type; Form fluid passage in it between pipe and outer tube with oil pipe; The fluid passage of formation and sleeve pipe is equipped with righting rod and sets upright pole socket between interior pipe and sheath in the interior pipe, and spring and adjustable ring are installed on the righting rod in order; Interior pipe lower end is equipped with plug, and top is the inner conical structure.
Wherein, said set upright pole socket be installed in pipe middle part, the righting rod lower end is installed on it, the righting rod upper end is equipped with adjustable ring, adjustable ring and set upright spring is installed between the pole socket.The said pole socket center of setting upright is provided with axial hole and connecting thread, and this axial hole circle wall is provided with the axial flowing hole that is connected with sleeve pipe.The interior pipe top of said distributive pipe assembly is the conical internal cavity structure of the steam regulation flow that matches with adjustable ring.
The present invention has following advantage compared with prior art:
1, owing to adopted steam regulator, make the steam absorbing amount on heterogeneity stratum be tending towards balanced, the steam flooding ability improves greatly, and the oil recovery ability improves, and production efficiency improves.
2, use the present invention, that not only can play steam injection helps profile control and even profile control effect, improves heavy crude heat extraction steam flooding effect simultaneously greatly.
3, range of application is wider, not only is adapted to horizontal well, also applicable to the inclined shaft and the open well steam injection displacement of reservoir oil, is suitable for the steam flooding technology of horizontal well inhomogeneous formation especially, reaches balanced the adjusting and annotates vapour.
Four, description of drawings
Accompanying drawing is a kind of structural representation of the present invention.
Five, the specific embodiment
Consult accompanying drawing, a kind of heavy oil thermal recovery balanced steam injection and regulation device comprises top connection, adjustable ring, righting rod, spring, sheath, distributive pipe assembly, plug and outer tube.Top connection is connected with distributive pipe assembly 6 and outer tube 8 for 1 time in order; Distributive pipe assembly 6 is the two-tube dual channel structure of bridge-type, the fluid passage of formation and oil pipe between its interior pipe and outer tube, the fluid passage of 5 formations of interior pipe and sheath and sleeve pipe; Righting rod 3 is installed and sets upright pole socket 9 in the interior pipe; Spring 4 and adjustable ring 2 are installed on the righting rod 3 in order, and interior pipe lower end is equipped with plug 7, and top is the inner conical structure.
Set upright pole socket 9 be installed in pipe middle part, righting rod 3 lower ends are installed on it, the righting rod upper end is equipped with adjustable ring 2, adjustable ring and set upright spring 4 is installed between the pole socket 9.Set upright pole socket 9 centers and be provided with axial hole and connecting thread, this axial hole circle wall is provided with the axial flowing hole that is connected with sleeve pipe.The interior pipe top of distributive pipe assembly 6 is the conical internal cavity structure of the steam regulation flow that matches with adjustable ring 2.
Claims (4)
1. heavy oil thermal recovery balanced steam injection and regulation device; Comprise top connection, adjustable ring, righting rod, spring, sheath, distributive pipe assembly, plug and outer tube, it is characterized in that being connected with in order under the said top connection distributive pipe assembly and outer tube, said distributive pipe assembly is the two-tube dual channel structure of bridge-type; Form fluid passage in it between pipe and outer tube with oil pipe; The fluid passage of formation and sleeve pipe is equipped with righting rod and sets upright pole socket between interior pipe and sheath in the interior pipe, and spring and adjustable ring are installed on the righting rod in order; Interior pipe lower end is equipped with plug, and top is the inner conical structure.
2. heavy oil thermal recovery balanced steam injection and regulation device according to claim 1, it is characterized in that said set upright pole socket be installed in pipe middle part, the righting rod lower end is installed on it, the righting rod upper end is equipped with adjustable ring, adjustable ring and set upright spring is installed between the pole socket.
3. heavy oil thermal recovery balanced steam injection and regulation device according to claim 1 and 2 is characterized in that the said pole socket center of setting upright is provided with axial hole and connecting thread, and this axial hole circle wall is provided with the axial flowing hole that is connected with sleeve pipe.
4. heavy oil thermal recovery balanced steam injection and regulation device according to claim 1 and 2 is characterized in that the conical internal cavity structure of the interior pipe top of said distributive pipe assembly for the steam regulation flow that matches with adjustable ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810139917 CN101358518B (en) | 2008-09-03 | 2008-09-03 | Heavy oil thermal recovery balanced steam injection and regulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810139917 CN101358518B (en) | 2008-09-03 | 2008-09-03 | Heavy oil thermal recovery balanced steam injection and regulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101358518A CN101358518A (en) | 2009-02-04 |
| CN101358518B true CN101358518B (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810139917 Expired - Fee Related CN101358518B (en) | 2008-09-03 | 2008-09-03 | Heavy oil thermal recovery balanced steam injection and regulation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101358518B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314544B (en) * | 2014-10-24 | 2017-01-18 | 中国石油天然气股份有限公司 | Adjustable annular flow injection valve and steam injection string |
| CN105569625B (en) * | 2014-11-10 | 2018-03-16 | 中国石油化工股份有限公司 | Underground steam flow mass dryness fraction distributes regulation device |
| CN104675373B (en) * | 2014-12-30 | 2017-07-14 | 山东科瑞油田服务集团股份有限公司 | A kind of uniform steam injection technology of two-tube jet of horizontal well and kit |
| CN110094191B (en) * | 2018-01-29 | 2021-06-29 | 中国石油化工股份有限公司 | Forced segmented injection-production pipe column and method for thermal production well |
| CN114427413A (en) * | 2020-10-09 | 2022-05-03 | 中国石油化工股份有限公司 | Equal-flow equal-dryness steam distributor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5238066A (en) * | 1992-03-24 | 1993-08-24 | Exxon Production Research Company | Method and apparatus for improved recovery of oil and bitumen using dual completion cyclic steam stimulation |
| US5257664A (en) * | 1990-12-03 | 1993-11-02 | Mobil Oil Corporation | Steam injection profile control agent and process |
| CN2648058Y (en) * | 2003-07-01 | 2004-10-13 | 中国石油天然气股份有限公司 | Auto gas distribution valve for thickened oil injecting gas well |
| CN200952384Y (en) * | 2006-08-24 | 2007-09-26 | 潘昌德 | Constant gas injection valve |
| CN101173605A (en) * | 2007-11-14 | 2008-05-07 | 潘昌德 | Layered quantitative gas filling device |
-
2008
- 2008-09-03 CN CN 200810139917 patent/CN101358518B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5257664A (en) * | 1990-12-03 | 1993-11-02 | Mobil Oil Corporation | Steam injection profile control agent and process |
| US5238066A (en) * | 1992-03-24 | 1993-08-24 | Exxon Production Research Company | Method and apparatus for improved recovery of oil and bitumen using dual completion cyclic steam stimulation |
| CN2648058Y (en) * | 2003-07-01 | 2004-10-13 | 中国石油天然气股份有限公司 | Auto gas distribution valve for thickened oil injecting gas well |
| CN200952384Y (en) * | 2006-08-24 | 2007-09-26 | 潘昌德 | Constant gas injection valve |
| CN101173605A (en) * | 2007-11-14 | 2008-05-07 | 潘昌德 | Layered quantitative gas filling device |
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| Publication number | Publication date |
|---|---|
| CN101358518A (en) | 2009-02-04 |
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Granted publication date: 20121219 Termination date: 20170903 |