CN103362483A - Horizontal well gravel-packed string and pressure control valves thereof - Google Patents
Horizontal well gravel-packed string and pressure control valves thereof Download PDFInfo
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- CN103362483A CN103362483A CN2012100919483A CN201210091948A CN103362483A CN 103362483 A CN103362483 A CN 103362483A CN 2012100919483 A CN2012100919483 A CN 2012100919483A CN 201210091948 A CN201210091948 A CN 201210091948A CN 103362483 A CN103362483 A CN 103362483A
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- gravel
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- pipe
- horizontal well
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Abstract
A horizontal well gravel-packed string and pressure control valves thereof are used for overcoming the shortcomings of poor exploitation effects of a horizontal well due to non-fill-up gravel packing or not enough gravel stacking of the existing horizontal well. The horizontal well gravel-packed string comprises an oil pipe I, an oil drainer, an oil pipe II, the pressure control valve I, a washing pipe I, the pressure control valve II, a washing pipe II and a gravel packing tool which are sequentially connected from top to bottom; the pressure control valves are arranged between the oil pipes and the gravel packing tool. A rubber cup, a spring and a preloaded nut are sequentially arranged above an upper boss of the periphery of a base pipe of each pressure control valve from top to bottom; the mouth of the rubber cup faces downwards, the bottom of the rubber cup is snapped above the upper boss, and the rubber cup can slide along a spline; the preloaded nut is fixedly connected with the threads of the base pipe; a centralizer is fixedly arranged under a lower boss of the base pipe. The horizontal well gravel-packed string and the pressure control valves thereof have the advantages of being applicable to well completion construction of screen pipe gravel packing of horizontal wells or highly-deviated wells, providing good gravel packing effects and avoiding or reducing the risks brought by the gravel packing construction to sand-prevention completed wells.
Description
Technical field
The present invention relates to the gravel-pack assembly in a kind of oil and gas development completion construction operation, especially relate to a kind of SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string and pressure-control valve thereof.
Background technology
Because action of gravitation causes gravel to sink, the flow regime of load fluid and the rule of gravel deposition are different from the gravel pack of straight well fully in the horizontal well completion construction operation gravel-packing process.In the SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL work progress, after load fluid enters net horizontal section, along with circulation area increases, liquid turbulence intensity and prop-carrying capacity descend, the leak-off of working solution is also very serious simultaneously, when the settling rate of gravel during greater than the flow velocity of liquid, gravel just progressively forms " sand dune " of separation at horizontal segment, when " sand dune " when reaching a certain height, will cause annular space to form the sandstone bridge blinding, stop that load fluid moves ahead, make the gravel pack operation cross early stopping, cause that gravel pack is discontented or filling is not in place, even very long a part of well section can not get filling, make reservoir sand can not get controlling completely effectively, finally cause the development effectiveness of horizontal well poor.
Summary of the invention
The gravel pack of existing level well is discontented or filling is not in place in order to overcome, and makes reservoir sand can not get effective control, causes the poor deficiency of development effectiveness of horizontal well, the invention provides a kind of SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string and pressure-control valve thereof.
The technical solution adopted for the present invention to solve the technical problems is: the well cementation tubing string comprises sleeve pipe and screen casing, sleeve pipe is positioned at the peupendicular hole section, screen casing is positioned at net horizontal section, the SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string comprises oil pipe, bleeder, washing pipe, gravel pack instrument, and oil pipe, bleeder, oil pipe, pressure-control valve, washing pipe, pressure-control valve, washing pipe, gravel pack instrument from top to bottom connect successively; Pressure-control valve is installed between oil pipe and the gravel pack instrument; Pressure-control valve more than 2 or 2 is positioned at the screen casing of net horizontal section.
Pressure-control valve in the SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string, comprise top connection, parent tube, lower contact, top connection and lower contact are fixedly mounted on respectively the upper/lower terminal of parent tube, parent tube cylindrical middle part from top to bottom is screw thread, spline, convex platform, lower convex platform, one section body is arranged between convex platform and the lower convex platform, and the length of body is greater than the length of leather cup.The parent tube cylindrical of convex platform top is equipped with leather cup, spring, pre-load nut from the bottom to top successively; The rim of a bowl of leather cup down, the bowl end, be stuck in the top of convex platform, leather cup can slide along spline; Pre-load nut is fixedly connected with the screw thread of parent tube; The lower convex platform below of parent tube is installed with centralizer.The external diameter of centralizer is greater than the external diameter of leather cup, and the material of centralizer is polytetrafluoroethylene (PTFE).
The invention has the beneficial effects as follows, rational in infrastructure, filling effect is good, can effectively avoid because forming too early sand bridge, the risk of bringing for the gravel filling sand prevention completion practice, the development effectiveness of safeguard level well in the gravel pack construction.
Description of drawings
Fig. 1 is SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubular column structure schematic diagram of the present invention.
Fig. 2 is the pressure-control valve structural representation in the SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string of the present invention.
Among the figure: 1. sleeve pipe, 2. bleeder, 3. oil pipe, 4. pressure-control valve, 5. screen casing, 6. washing pipe, 7. gravel pack instrument, 11. top connections, 12. parent tubes, 13. pre-load nuts, 14. springs, 15. leather cups, 16. centralizer, 17. lower contacts, 18. screw threads, 19. splines, 20. convex platforms, 21. lower convex platforms.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.But what those skilled in the art should know is to the invention is not restricted to the listed specific embodiment, as long as spirit according to the invention all should be included in protection scope of the present invention.
Referring to accompanying drawing 1.The well cementation tubing string comprises sleeve pipe 1 and screen casing 5, and sleeve pipe 1 is positioned at the target zone that peupendicular hole section, screen casing 5 are positioned at net horizontal section.SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string of the present invention comprises oil pipe 3, bleeder 2, pressure-control valve 4, washing pipe 6, gravel pack instrument 7, and oil pipe 3, bleeder 2, oil pipe 3, pressure-control valve 4, washing pipe 6, pressure-control valve 4, washing pipe 6, gravel pack instrument 7 from top to bottom connect successively; Pressure-control valve 4 is installed between oil pipe 3 and the gravel pack instrument 7; Pressure-control valve 4 more than 2 or 2 is positioned at the screen casing 5 of net horizontal section, according to the length of gravel pack net horizontal section, the pressure-control valve 4 that quantity does not wait is installed, and pressure-control valve 4 is connected with washing pipe 6 successively interval usually.
Referring to accompanying drawing 2.Pressure-control valve 4 in the SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string of the present invention, top connection 11 and lower contact 17 are fixedly mounted on respectively the upper/lower terminal of parent tube 12 by screw thread.Parent tube 12 cylindricals middle part from top to bottom is screw thread 18, spline 19, convex platform 20, lower convex platform 21, and one section body is arranged between convex platform 20 and the lower convex platform 21, and the length of body is greater than the length of leather cup 15.
Convex platform 20 tops of parent tube 12 are equipped with leather cup 15, spring 14, pre-load nut 13 from the bottom to top successively; The rim of a bowl of leather cup 15 down, the bowl end, be stuck in the top of convex platform 20, leather cup 15 can slide along spline 19; Pre-load nut 13 is fixedly connected with the screw thread 18 of parent tube 12.
Lower convex platform 21 belows of parent tube 12 are installed with centralizer 16, and the external diameter of centralizer 16 can not produce distortion because of extruding greater than the external diameter of leather cup 15 to guarantee leather cup 15.The material selection polytetrafluoroethylene (PTFE) of common centralizer 16.
When using field operation of the present invention, at first according to filling well segment length and construction operation needs, determine the usage quantity of pressure-control valve 4, then pressure-control valve 4 is installed in respectively on the SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string, again tubing string is lowered in the pit shaft, guarantees that the pressure-control valve 4 on the SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string is positioned at sand control screen 5 places.
Before the gravel pack operation, leather cup 15 external diameters on the pressure-control valve 4 with screen casing 5 internal diameters in the situation that do not have pressure for matched in clearance.
After gravel pack begins, reach certain value from the pressure of gravel pack instrument 7 after, leather cup 15 the rims of a bowl rise outward, are close to the inwall of screen casing 5, the sealing axial passage; After pressure continuation increase promotion leather cup 15 overcame spring 14 resistances, leather cup 15 slided along parent tube 12, and the groove that exposes parent tube 12 upper splines 19 becomes backwater channel.
After gravel pack finished, the completion tubular column internal pressure reduced, leather cup 15 under the effect of spring 14, homing, leather cup 15 is gapped with screen casing 5, is convenient to the filling tubing string and proposes pit shaft.
Owing at the SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string several pressure-control valves 4 being installed, in SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL sieve tube completion work progress, can make load fluid first to the position filling farthest of gravel pack instrument, farthest one section gravel pack intensive after, backwater channel is obstructed, overpressure raises, and will open the backwater channel of adjacent pressure-control valve 4.Because the pressure of several pressure-control valves is from gravel pack instrument 7, away from must be more, opening pressure is less, successively by far away and near, one section one section filling of load fluid, leak-off, limit the circulation canal backwater by pressure, the gravel of net horizontal section is full of piecemeal, avoids bringing risk for the gravel filling sand prevention completion practice because forming too early sand bridge in the gravel pack construction.
It should be noted that above-described embodiment is example and unrestricted the present invention, those skilled in the art can design a lot of alternate embodiments and not break away from the claim scope of this patent.
Claims (4)
1. SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string, comprise oil pipe, bleeder, washing pipe, gravel pack instrument, the well cementation tubing string comprises sleeve pipe and screen casing, sleeve pipe is positioned at the peupendicular hole section, screen casing is positioned at net horizontal section, it is characterized in that: oil pipe (3), bleeder (2), oil pipe (3), pressure-control valve (4), washing pipe (6), pressure-control valve (4), washing pipe (6), gravel pack instrument (7) from top to bottom connect successively; Pressure-control valve (4) is installed between oil pipe (3) and the gravel pack instrument (7); Pressure-control valve more than 2 or 2 (4) is positioned at the screen casing (5) of net horizontal section.
2. the pressure-control valve in the described SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string of claim 1 comprises top connection, parent tube, lower contact, and top connection and lower contact are fixedly mounted on respectively the upper/lower terminal of parent tube, it is characterized in that:
Described parent tube (12) cylindrical middle part from top to bottom is screw thread (18), spline (19), convex platform (20), lower convex platform (21), between convex platform (20) and the lower convex platform (21) one section body is arranged, the length of body is greater than the length of leather cup (15);
Parent tube (12) cylindrical of described convex platform (20) top is equipped with leather cup (15), spring (14), pre-load nut (13) from the bottom to top successively; The rim of a bowl of leather cup (15) down, the bowl end, be stuck in the top of convex platform (20), leather cup (15) can slide along spline (19); Pre-load nut (13) is fixedly connected with the screw thread (18) of parent tube (12);
Lower convex platform (21) below of described parent tube (12) is installed with centralizer (16).
3. described pressure-control valve according to claim 2, it is characterized in that: the external diameter of described centralizer (16) is greater than the external diameter of leather cup (15).
4. described pressure-control valve according to claim 3, it is characterized in that: the material of described centralizer (16) is polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210091948.3A CN103362483B (en) | 2012-03-31 | 2012-03-31 | SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string and pressure-control valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210091948.3A CN103362483B (en) | 2012-03-31 | 2012-03-31 | SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string and pressure-control valve thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103362483A true CN103362483A (en) | 2013-10-23 |
| CN103362483B CN103362483B (en) | 2016-06-15 |
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| CN201210091948.3A Active CN103362483B (en) | 2012-03-31 | 2012-03-31 | SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL tubing string and pressure-control valve thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134141A (en) * | 2015-08-25 | 2015-12-09 | 中国石油天然气股份有限公司 | Process pipe column |
| CN106121586A (en) * | 2016-08-21 | 2016-11-16 | 中国石油化工股份有限公司 | A kind of layering section sand control production integration control valve |
| CN108533234A (en) * | 2018-06-13 | 2018-09-14 | 邹佳宸 | Horizontal well fixed tubular column sublevel fill stoping and kit |
| CN110118076A (en) * | 2019-06-24 | 2019-08-13 | 大港油田集团有限责任公司 | A kind of righting type damping device for filling |
| CN112031690A (en) * | 2020-08-27 | 2020-12-04 | 北京博德世达石油技术股份有限公司 | Sleeve cleaning filter and cleaning method adopting same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351546Y (en) * | 1998-09-30 | 1999-12-01 | 陈晓红 | Casing associated gas well recovering apparatus |
| US20090071657A1 (en) * | 2007-09-18 | 2009-03-19 | Johnson Michael H | Annular Pressure Monitoring During Hydraulic Fracturing |
| CN201705219U (en) * | 2010-06-21 | 2011-01-12 | 大港油田集团有限责任公司 | Lateral drilling gravel pack completion string |
| CN201738822U (en) * | 2010-06-21 | 2011-02-09 | 大港油田集团有限责任公司 | String for upper horizontal well cementation and lower screen pipe gravel pack completion |
| CN201802331U (en) * | 2010-09-14 | 2011-04-20 | 中国石油化工股份有限公司 | Screw pump well washing device |
| CN202755955U (en) * | 2012-03-31 | 2013-02-27 | 大港油田集团有限责任公司 | Gravel packing string for horizontal wells |
-
2012
- 2012-03-31 CN CN201210091948.3A patent/CN103362483B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351546Y (en) * | 1998-09-30 | 1999-12-01 | 陈晓红 | Casing associated gas well recovering apparatus |
| US20090071657A1 (en) * | 2007-09-18 | 2009-03-19 | Johnson Michael H | Annular Pressure Monitoring During Hydraulic Fracturing |
| CN201705219U (en) * | 2010-06-21 | 2011-01-12 | 大港油田集团有限责任公司 | Lateral drilling gravel pack completion string |
| CN201738822U (en) * | 2010-06-21 | 2011-02-09 | 大港油田集团有限责任公司 | String for upper horizontal well cementation and lower screen pipe gravel pack completion |
| CN201802331U (en) * | 2010-09-14 | 2011-04-20 | 中国石油化工股份有限公司 | Screw pump well washing device |
| CN202755955U (en) * | 2012-03-31 | 2013-02-27 | 大港油田集团有限责任公司 | Gravel packing string for horizontal wells |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134141A (en) * | 2015-08-25 | 2015-12-09 | 中国石油天然气股份有限公司 | Process pipe column |
| CN106121586A (en) * | 2016-08-21 | 2016-11-16 | 中国石油化工股份有限公司 | A kind of layering section sand control production integration control valve |
| CN108533234A (en) * | 2018-06-13 | 2018-09-14 | 邹佳宸 | Horizontal well fixed tubular column sublevel fill stoping and kit |
| CN110118076A (en) * | 2019-06-24 | 2019-08-13 | 大港油田集团有限责任公司 | A kind of righting type damping device for filling |
| CN110118076B (en) * | 2019-06-24 | 2021-10-08 | 大港油田集团有限责任公司 | Centralizing type damping filling device |
| CN112031690A (en) * | 2020-08-27 | 2020-12-04 | 北京博德世达石油技术股份有限公司 | Sleeve cleaning filter and cleaning method adopting same |
| CN112031690B (en) * | 2020-08-27 | 2024-04-19 | 北京博德世达石油技术股份有限公司 | Sleeve cleaning filter and cleaning method adopting sleeve cleaning filter |
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| CN103362483B (en) | 2016-06-15 |
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| CP01 | Change in the name or title of a patent holder |
Address after: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Co-patentee after: Tianjin Dagang Oilfield Petroleum Engineering Research Institute Drilling Technology Development Co.,Ltd. Patentee after: DAGANG OILFIELD GROUP Co.,Ltd. Address before: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Co-patentee before: TIANJIN DAGANG OILFIELD PETROLEUM ENGINEERING RESEARCH INSTITUTE DRILLING AND PRODUCTION TECHNOLOGY DEVELOPMENT CO. Patentee before: DAGANG OILFIELD GROUP Co.,Ltd. Address after: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Co-patentee after: TIANJIN DAGANG OILFIELD PETROLEUM ENGINEERING RESEARCH INSTITUTE DRILLING AND PRODUCTION TECHNOLOGY DEVELOPMENT CO. Patentee after: DAGANG OILFIELD GROUP Co.,Ltd. Address before: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Co-patentee before: TIANJIN DAGANG OIL FIELD DRILLING TECHNOLOGY DEVELOPMENT CO. Patentee before: DAGANG OILFIELD GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201125 Address after: 300000 No. three, Dagang Oilfield, Binhai New Area, Tianjin Patentee after: DAGANG OILFIELD GROUP Co.,Ltd. Patentee after: Tianjin Dagang Oilfield Petroleum Engineering Research Institute Drilling Technology Development Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee before: DAGANG OILFIELD GROUP Co.,Ltd. Patentee before: Tianjin Dagang Oilfield Petroleum Engineering Research Institute Drilling Technology Development Co.,Ltd. |
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| TR01 | Transfer of patent right |