CN204827391U - Heat -extraction system is returned to negative pressure for oil -water well - Google Patents
Heat -extraction system is returned to negative pressure for oil -water well Download PDFInfo
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- CN204827391U CN204827391U CN201520626108.1U CN201520626108U CN204827391U CN 204827391 U CN204827391 U CN 204827391U CN 201520626108 U CN201520626108 U CN 201520626108U CN 204827391 U CN204827391 U CN 204827391U
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- negative pressure
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- pipe
- extraction system
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Abstract
Heat -extraction system is returned to negative pressure for oil -water well, characterized by, including oil pipe, sleeve pipe, oil pipe places in and overlaps intraductally and have the space, and there is plugging device the oil pipe bottom, is equipped with the tap on the oil pipe on plugging device upper portion, is equipped with the screen cloth on the tap, is equipped with the packer that forms seal structure with the sleeve pipe on the oil pipe on screen cloth upper portion, is equipped with the negative pressure on the oil pipe on packer upper portion and returns row ware, the beneficial effects are that: carry out physics and chemical dual function to the stratum, separate and thoroughly dredge the stratum pore before stifled, separate the stifled back of handling and thoroughly return fast with the negative pressure and mediate stifled liquid, eliminate secondary damage to effectively protect the reservoir.
Description
Technical field
The utility model belongs to oil-water well plugging handling technical field, is specifically related to oil-water well negative pressure and returns heat-extraction system.
Background technology
Oil-water well usually occurs, because the depositions such as wax (glue) matter, dirt, inorganic particle result in blockage, to have a strong impact on profit well yield and water injection rate around nearly well in process of production.In order to remove the blocking of near wellbore zone, improve profit well yield and water injection rate, each oil field, the current whole nation adopts the method for physics or chemistry, as systematic measures such as waterpower pulse, pressure break, acidifying, detonation pressures, achieve effect in various degree, but said system measure likely increases stratum filtration area, but cannot thoroughly get rid of for mix particle and secondary precipitate of the machine peeled off, cause measure effect low, period of validity is short.
Utility model content
The utility model provides a kind of blocking removing near wellbore zone, and the oil-water well negative pressure improving profit well yield and water injection rate returns heat-extraction system.
The technical solution of the utility model is:
Oil-water well negative pressure returns heat-extraction system, it is characterized in that, comprise oil pipe, sleeve pipe, oil pipe to be placed in sleeve pipe and to have space, have plugging device bottom oil pipe, the oil pipe on plugging device top is provided with tap, and tap is provided with screen cloth, the oil pipe on screen cloth top is provided with the packer forming hermetically-sealed construction with sleeve pipe, and the oil pipe on packer top is provided with negative pressure and returns row's device.Plugging device is for sealing the bottom of oil pipe, working solution directly can be discharged into oil reservoir by tap, and screen cloth can filter working solution, prevents secondary from blocking, packer can, to forming sealing segmentation between oil pipe and sleeve pipe, prevent working solution from discharging between oil pipe and sleeve pipe.
Wherein, oil pipe, cannula tip are connected to negative pressure pump.
Wherein, negative pressure is returned row's device and is comprised outer tube, interior pipe, and outer tube bottom is provided with the tube connector be communicated with interior pipe, and interior pipe upper/lower terminal is connected with oil pipe respectively, and interior pipe upper end is provided with top cover, and top cover bottom is provided with linking springs.
Gap between interior pipe and outer tube is used for the passing through of working solution, and anti-when arranging, working solution enters interior pipe by tube connector, and after washing top cover open, after driving de-plugging, working solution is formed and sprays.
Operating principle is:
Working solution is entered from oil pipe by negative pressure pump, by negative pressure reverse arrange enter into tap between the outer tube of device and interior pipe after enter oil reservoir, working solution is to oil reservoir deep penetration de-plugging; When anti-row, by negative pressure pump, working solution is entered from the gap between oil pipe and sleeve pipe, then enter into negative pressure by tube connector and return pipe in row's device, under the effect of the pressure, by top cover jack-up, under stress, after driving de-plugging, working solution is formed and sprays, well liquid is just constantly taken out of ground, thus completes object well liquid (residual acid etc.) all being given rise to ground.
The beneficial effects of the utility model are: 1. this system formation carries out physics and chemistry double action, thorough dredging duct, stratum before de-plugging, with the negative pressure thorough row's of returning blockages relieving fluid fast after de-plugging process, eliminate secondary injury, thus available protecting reservoir.2. on safety and environmental protection: this systematic difference not only can reach even higher with the equivalent effect of vaporize water well-flushing, and can available protecting well site environment, increase construction safety coefficient.3. on construction system: this device tubular column structure is simple, the physicochemical independent of formation can be completed or repeat operation by one-trip string, can also complete conventional anti-flushing well system simultaneously, reduce activity duration and labour intensity, thus saving operating cost reaches energy-saving and cost-reducing effect.4. take negative pressure deblocking to be the efficient important means of raising measure in produced-water reinjection district.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model de-plugging structural representation;
Accompanying drawing 2 is the anti-structural representation of arranging of the utility model;
In figure: 1, oil pipe, 2, sleeve pipe, 3, plugging device, 4, tap, 5, packer, 6, negative pressure returns row's device, 7, outer tube, 8, interior pipe, 9, tube connector, 10, top cover, 11, linking springs, 12, negative pressure pump.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, 2, oil-water well negative pressure returns heat-extraction system, comprise oil pipe 1, sleeve pipe 2, oil pipe 1 to be placed in sleeve pipe 2 and to have space, have plugging device 3 bottom oil pipe 1, the oil pipe 1 on plugging device 3 top is provided with tap 4, and tap 4 is provided with screen cloth, the oil pipe 1 on screen cloth top is provided with the packer 5 forming hermetically-sealed construction with sleeve pipe 2, and the oil pipe 1 on packer 5 top is provided with negative pressure and returns row's device 6; Negative pressure is returned row's device 6 and is comprised outer tube 7, interior pipe 8, and outer tube 7 bottom is provided with the tube connector 9 be communicated with interior pipe 8, and interior pipe 8 upper/lower terminal is connected with oil pipe 1 respectively, and interior pipe 8 upper end is provided with top cover 10, and top cover 10 bottom is provided with linking springs 11; Oil pipe 1, sleeve pipe 2 top are connected to negative pressure pump 12.
These are only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. oil-water well negative pressure returns heat-extraction system, it is characterized in that, comprise oil pipe, sleeve pipe, oil pipe to be placed in sleeve pipe and to have space, have plugging device bottom oil pipe, the oil pipe on plugging device top is provided with tap, and tap is provided with screen cloth, the oil pipe on screen cloth top is provided with the packer forming hermetically-sealed construction with sleeve pipe, and the oil pipe on packer top is provided with negative pressure and returns row's device.
2. oil-water well negative pressure according to claim 1 returns heat-extraction system, it is characterized in that, negative pressure is returned row's device and comprised outer tube, interior pipe, outer tube bottom is provided with the tube connector be communicated with interior pipe, interior pipe upper/lower terminal is connected with oil pipe respectively, and interior pipe upper end is provided with top cover, and top cover bottom is provided with linking springs.
3. oil-water well negative pressure according to claim 1 returns heat-extraction system, it is characterized in that, oil pipe, cannula tip are connected to negative pressure pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520626108.1U CN204827391U (en) | 2015-08-19 | 2015-08-19 | Heat -extraction system is returned to negative pressure for oil -water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520626108.1U CN204827391U (en) | 2015-08-19 | 2015-08-19 | Heat -extraction system is returned to negative pressure for oil -water well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827391U true CN204827391U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520626108.1U Active CN204827391U (en) | 2015-08-19 | 2015-08-19 | Heat -extraction system is returned to negative pressure for oil -water well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930715A (en) * | 2017-05-15 | 2017-07-07 | 中国石油化工股份有限公司 | Oil-water well self-propelled nitrogen negative pressure returns row casting and dragging free device and its application method |
| CN115288637A (en) * | 2022-06-23 | 2022-11-04 | 大庆信辰油田技术服务有限公司 | Oil-water well pulsating plug removal yield increase method and pulsating plug removal yield increase device |
-
2015
- 2015-08-19 CN CN201520626108.1U patent/CN204827391U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930715A (en) * | 2017-05-15 | 2017-07-07 | 中国石油化工股份有限公司 | Oil-water well self-propelled nitrogen negative pressure returns row casting and dragging free device and its application method |
| CN115288637A (en) * | 2022-06-23 | 2022-11-04 | 大庆信辰油田技术服务有限公司 | Oil-water well pulsating plug removal yield increase method and pulsating plug removal yield increase device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |