CN204941482U - Gravel filling device capable of washing sand - Google Patents
Gravel filling device capable of washing sand Download PDFInfo
- Publication number
- CN204941482U CN204941482U CN201520639054.2U CN201520639054U CN204941482U CN 204941482 U CN204941482 U CN 204941482U CN 201520639054 U CN201520639054 U CN 201520639054U CN 204941482 U CN204941482 U CN 204941482U
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- China
- Prior art keywords
- protective cover
- single current
- sand
- sand washing
- gravel
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- 239000004576 sand Substances 0.000 title claims abstract description 54
- 238000005406 washing Methods 0.000 title claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 12
- 210000002445 nipple Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000012856 packing Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 241000931705 Cicada Species 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a but sand washing gravel packs device, include: interior intubate, location become to detain, single current disk seat, interior safety cover, axis of rotation, rotation handle, reset spring, set screw, single current valve gap. If the sand is stuck in the process of entering the gravel packing device, the sand can be removed by performing forward sand washing and reverse sand washing through the matching of all the parts, so that the time and the labor are saved, the construction cost is saved, and the sand removing device is particularly suitable for wells which are easy to sand out, such as horizontal wells, highly-deviated wells and the like. In addition, after long-time gravel packing operation is carried out, the reset spring can still push the uniflow valve cover to accurately reset, the uniflow valve is closed, sand is prevented from flowing backwards, and the gravel packing quality is guaranteed.
Description
Technical field
The utility model relates to oil development technical field, and particularly relating to one can sand washing gravel-pack assembly.
Background technology
Gravel-pack assembly is the sand control completion instrument in oil-gas field development.In current many horizontal wells and the operation of high angle hole sand control completion, shake out serious, sand preventing tool is hampered in the process of going into the well of being everlasting, current gravel-pack assembly does not have sand washing function, instrument can only be tripped out after being hampered, under enter sand-washing pen point sand washing, construction sequence is loaded down with trivial details, affects economic benefit and construction speed.
Utility model content
The utility model provides one can sand washing gravel-pack assembly, to solve the technical problem that current gravel-pack assembly does not have sand washing function.
For solving the problems of the technologies described above, the utility model provides one can sand washing gravel-pack assembly, under enter in the process of gravel-pack assembly, as run into sand card, can move up and down and can directly carry out anti-flushing well operation sand washing after sand washing gravel-pack assembly, sand brings to ground through oil pipe.After gravel pack terminates, back-moving spring can act on ball-and-seat and cover and make its accurate return, prevents gravel adverse current, thus ensures sand control completion quality.
In the utility model, providing one can sand washing gravel-pack assembly, comprising:
Interpolation pipe, the first end of described interpolation pipe has the first internal thread, for connecting tube;
Location variable buckle, the first end of described location variable buckle has the second internal thread, for connected pipes pipe nipple or screen casing; The internal face of the second end of described location variable buckle and the outside wall surface matched in clearance of described interpolation pipe; Single current valve seat and interior protective cover hold out against by the second end of described location variable buckle, to prevent described single current valve seat and described interior protective cover generation axially-movable;
The first end of described single current valve seat and the second end in contact of described location variable buckle, the second end of described single current valve seat and described interior protective cover matched in clearance; One side wall surface of described single current valve seat second end has rotational axis hole, for fixed bias circuit; Back-moving spring and handler is connected with in described turning cylinder;
Described handler and described ball-and-seat cover and have fixing screw hole; Hold-down screw and described fixing screw hole coordinate, and described handler and described single current valve gap are linked together.
Preferably, the second end of described location variable buckle offers the first external screw thread.
Preferably, described device also comprises: outer protective cover;
The first end of described outer protective cover has the 3rd internal thread, and described first external screw thread coordinates, and described location variable buckle is connected with described outer protective cover;
The internal face of the first end of described outer protective cover and described interior protective cover matched in clearance;
Second end of described outer protective cover has the second external screw thread;
The middle part of described outer protective cover has ladder.
Preferably, described device also comprises: box cupling;
Described box cupling offers the 4th internal thread, is coordinated, described box cupling is fixedly connected with described outer protective cover by described second external screw thread;
Described 4th internal thread also coordinates with the 3rd external screw thread of the first end of safe distance pipe, and described box cupling is fixedly connected with described safe distance pipe.
Preferably, the second end of described safe distance pipe offers the 4th external screw thread, is connected with the 5th screw-internal thread fit of the first end of guide head, and described safe distance pipe is fixedly connected with described guide head.
Preferably, there is fillet the outer face of the second end of described guide head, is milled with notch vertically.
Preferably, internal face and the outside wall surface of described single current valve seat respectively have seal groove, for coordinating with sealing ring.
Preferably, described ball-and-seat covers and has groove, embeds for described handler, prevents described handler circumference from rotating.
By one or more technical scheme of the present utility model, the utility model has following beneficial effect or advantage:
The utility model provides one can sand washing gravel-pack assembly, comprising: interpolation pipe, location variable buckle, single current valve seat, interior protective cover, turning cylinder, handler, back-moving spring, hold-down screw, single current valve gap.If under enter in the process of gravel-pack assembly to meet with sand card, can carry out carrying out forward sand washing by the cooperation of all parts and desanding card is separated in reverse sand washing, time saving and energy saving, save construction cost, be specially adapted to the well that horizontal well and high angle hole etc. easily shake out.In addition, after carrying out long-time gravel packing operations, back-moving spring still can promote single current valve gap parking position accuracy, closes ball-and-seat, stops sand to flow backwards, ensures gravel pack quality.
Further, the inside and outside wall of single current valve seat has sealing ring, prevents gravel from entering screen casing inside, ensure that filling quality.
Further, this device is after long-time gravel packing operations, and single current valve gap still can parking position accuracy, closes pack hole, prevents gravel from flowing backwards, thus guarantee gravel pack quality.
Accompanying drawing explanation
Fig. 1 for the utility model embodiment provide can the schematic diagram of sand washing gravel-pack assembly;
The schematic diagram of the interpolation pipe that Fig. 2 provides for the utility model embodiment;
The connection diagram of the box cupling that Fig. 3 provides for the utility model embodiment and safe distance pipe;
The structural representation of the seeker that Fig. 4 provides for the utility model embodiment;
Fig. 5 for the utility model embodiment provide can schematic diagram before the work of sand washing gravel-pack assembly;
Fig. 6 for the utility model embodiment provide can lateral view before the work of sand washing gravel-pack assembly;
The box cupling that Fig. 7 provides for the utility model embodiment and safe distance pipe connection diagram before operation;
Structural representation before the seeker work that Fig. 8 provides for the utility model embodiment.
Description of reference numerals: interpolation pipe 1, location variable buckle 2, outer protective cover 3, single current valve seat 4, sealing ring 5, interior protective cover 6, turning cylinder 7, handler 8, back-moving spring 9, hold-down screw 10, single current valve gap 11, box cupling 12, safe distance pipe 13, seeker 14.
Detailed description of the invention
In order to make the utility model the technical staff in the technical field more clearly understand the utility model, below in conjunction with accompanying drawing, by specific embodiment, technical solutions of the utility model are described in detail.
See Fig. 1; in the utility model, provide one can sand washing gravel-pack assembly, comprises interpolation pipe 1, location variable buckle 2, outer protective cover 3, single current valve seat 4, sealing ring 5, interior protective cover 6, turning cylinder 7, handler 8, back-moving spring 9, hold-down screw 10, single current valve gap 11, box cupling 12, safe distance pipe 13, seeker 14.
Introduce the structure of all parts below.
Referring to Fig. 2, the first end of interpolation pipe 1 has the first internal thread, for connecting tube.This pipe fitting can be free small-diameter pipe fitting, and the diameter of pipe fitting is as the criterion with actual conditions use, and the present invention does not limit.
The smooth outer surface of interpolation pipe 1, can be sealed and matched with sealing ring 5.Second end of interpolation pipe 1 can back down single current valve gap 11.In addition, after final assembling, the second end of interpolation pipe 1 can not exceed the endface position of the second end of safe distance pipe 13.
The first end of location variable buckle 2 has the second internal thread, connected pipes pipe nipple or screen casing.
The internal face of the second end of location variable buckle 2 and the outside wall surface matched in clearance of interpolation pipe 1.
Second end of location variable buckle 2 has the first external screw thread, is fixedly connected with the first end of outer protective cover 3.In addition, single current valve seat 4 and interior protective cover 6 hold out against by the second end of location variable buckle 2, prevent single current valve seat 4 and interior protective cover 6 from axially-movable occurring.
The first end inside of outer protective cover 3 has the 3rd internal thread, and described first external screw thread coordinates, and described location variable buckle 2 is connected with described outer protective cover 3.
The internal face of the first end of outer protective cover 3 and interior protective cover 6 matched in clearance.
The first end internal face of outer protective cover 3 is also sealed and matched with sealing ring 5, and sealing ring can use multiple-sealed circle, the 3 road sealing rings that such as the utility model is enumerated.
The middle part of outer protective cover 3 has ladder, plays the role of positioning.
The outside of the second end of outer protective cover 3 has the second external screw thread, is fixedly connected with box cupling 12.
Internal face and the outside wall surface of single current valve seat 4 respectively have seal groove, for embedding sealing circle 5.
The first end of described single current valve seat 4 and the second end in contact of described location variable buckle 2, the second end of described single current valve seat 4 and described interior protective cover 6 matched in clearance; One side wall surface of described single current valve seat 4 second end has rotational axis hole, for fixed bias circuit 7.
Back-moving spring 9 and handler 8 is connected with in described turning cylinder 7.Back-moving spring 9 in its natural state spring opens, and spring-force driven dual, on handler 8, makes single current valve gap 11 keep closed condition.
Handler 8 and single current valve gap 11 have fixing screw hole.
Hold-down screw 10 and described fixing screw hole coordinate, and described handler 8 and described single current valve gap 11 are linked together.
Single current valve gap 11 has square groove, and handler 8 embeds groove, prevents circumference from rotating.
See Fig. 3, box cupling 12 offers the 4th internal thread, is coordinated, described box cupling 12 is fixedly connected with described outer protective cover 3 by described second external screw thread.
The first end of safe distance pipe 13 offers the 3rd external screw thread, and the 4th screw-internal thread fit, and described box cupling 12 is fixedly connected with described safe distance pipe 13.
Second end of safe distance pipe 13 has the 4th external screw thread.
See figure, 4, the first end of guide head 14 has the 5th internal thread, with the threaded engagement all round, described safe distance pipe 13 is fixedly connected with described guide head 14.
There is fillet the outer face of the second end of guide head 14, is milled with notch vertically.
The utility model embodiment provide can the working method of sand washing gravel-pack assembly as follows:
In horizontal well and extended reach well sand control completion process, interpolation pipe 1 is assembled in device for filling, insert in the process of device for filling at interpolation pipe 1, interpolation pipe 1 outside wall surface is first sealed and matched with sealing ring 5, then single current valve gap 11 backs down by interpolation pipe 1, now gravel pack passage is opened, see Fig. 1-Fig. 4.
By interpolation pipe 1 together with device for filling under lower going-into-well, under enter in process, as sand card, then put on that put can sand washing gravel-pack assembly, carry out anti-flushing well sand washing (certainly also can just wash), continue running string after sand washing until precalculated position in well.
When carrying out gravel pack, the liquid containing gravel enters interpolation pipe 1 from oil pipe, and bottom interpolation pipe 1, (the second end) flows out, and enters stratum and between screen casing and the annular space of sleeve pipe.
After sand off, above carry interpolation pipe 1 to single current valve seat more than 4, under the effect of back-moving spring 9, single current valve gap 11 is closed, and stop gravel to be back in oil pipe, referring to Fig. 5-Fig. 8, so far, gravel packing operations terminates.
By one or more technical scheme of the present utility model, the utility model has following beneficial effect or advantage:
The utility model provides one can sand washing gravel-pack assembly, comprising: interpolation pipe, location variable buckle, single current valve seat, interior protective cover, turning cylinder, handler, back-moving spring, hold-down screw, single current valve gap.If under enter in the process of gravel-pack assembly to meet with sand card, can carry out carrying out forward sand washing by the cooperation of all parts and desanding card is separated in reverse sand washing, time saving and energy saving, save construction cost, be specially adapted to the well that horizontal well and high angle hole etc. easily shake out.In addition, after carrying out long-time gravel packing operations, back-moving spring still can promote single current valve gap parking position accuracy, closes ball-and-seat, stops sand to flow backwards, ensures gravel pack quality.
Further, the inside and outside wall of single current valve seat has sealing ring, prevents gravel from entering screen casing inside, ensure that filling quality.
Further, this device is after long-time gravel packing operations, and single current valve gap still can parking position accuracy, closes pack hole, prevents gravel from flowing backwards, thus guarantee gravel pack quality.
Although described preferred embodiment of the present utility model, one of ordinary skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the utility model scope.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (8)
1. can a sand washing gravel-pack assembly, it is characterized in that, comprising:
Interpolation pipe, the first end of described interpolation pipe has the first internal thread, for connecting tube;
Location variable buckle, the first end of described location variable buckle has the second internal thread, for connected pipes pipe nipple or screen casing; The internal face of the second end of described location variable buckle and the outside wall surface matched in clearance of described interpolation pipe; Single current valve seat and interior protective cover hold out against by the second end of described location variable buckle, to prevent described single current valve seat and described interior protective cover generation axially-movable;
The first end of described single current valve seat and the second end in contact of described location variable buckle, the second end of described single current valve seat and described interior protective cover matched in clearance; One side wall surface of described single current valve seat second end has rotational axis hole, for fixed bias circuit; Back-moving spring and handler is connected with in described turning cylinder;
Described handler and described ball-and-seat cover and have fixing screw hole; Hold-down screw and described fixing screw hole coordinate, and described handler and described single current valve gap are linked together.
2. one as claimed in claim 1 can sand washing gravel-pack assembly, and it is characterized in that, the second end of described location variable buckle offers the first external screw thread.
3. one as claimed in claim 2 can sand washing gravel-pack assembly, and it is characterized in that, described device also comprises: outer protective cover;
The first end of described outer protective cover has the 3rd internal thread, and described first external screw thread coordinates, and described location variable buckle is connected with described outer protective cover;
The internal face of the first end of described outer protective cover and described interior protective cover matched in clearance;
Second end of described outer protective cover has the second external screw thread;
The middle part of described outer protective cover has ladder.
4. one as claimed in claim 3 can sand washing gravel-pack assembly, and it is characterized in that, described device also comprises: box cupling;
Described box cupling offers the 4th internal thread, is coordinated, described box cupling is fixedly connected with described outer protective cover by described second external screw thread;
Described 4th internal thread also coordinates with the 3rd external screw thread of the first end of safe distance pipe, and described box cupling is fixedly connected with described safe distance pipe.
5. one as claimed in claim 4 can sand washing gravel-pack assembly, it is characterized in that, second end of described safe distance pipe offers the 4th external screw thread, is connected with the 5th screw-internal thread fit of the first end of guide head, and described safe distance pipe is fixedly connected with described guide head.
6. one as claimed in claim 5 can sand washing gravel-pack assembly, and it is characterized in that, there is fillet the outer face of the second end of described guide head, is milled with notch vertically.
7. one as claimed in claim 1 can sand washing gravel-pack assembly, and it is characterized in that, internal face and the outside wall surface of described single current valve seat respectively have seal groove, for coordinating with sealing ring.
8. one as claimed in claim 1 can sand washing gravel-pack assembly, and it is characterized in that, described ball-and-seat covers and has groove, embeds for described handler, prevents described handler circumference from rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639054.2U CN204941482U (en) | 2015-08-21 | 2015-08-21 | Gravel filling device capable of washing sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639054.2U CN204941482U (en) | 2015-08-21 | 2015-08-21 | Gravel filling device capable of washing sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204941482U true CN204941482U (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520639054.2U Active CN204941482U (en) | 2015-08-21 | 2015-08-21 | Gravel filling device capable of washing sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204941482U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503716A (en) * | 2016-06-14 | 2017-12-22 | 核工业北京化工冶金研究院 | A kind of ground-dipping uranium extraction built-in filter inversely throws gravel device |
| CN108716389A (en) * | 2018-08-17 | 2018-10-30 | 东营市瑞丰石油技术发展有限责任公司 | Valve plate type washes down packing tool |
| CN111878046A (en) * | 2020-09-02 | 2020-11-03 | 湖南中核勘探有限责任公司 | Reverse grain feeding device and method |
| CN111927404A (en) * | 2020-10-15 | 2020-11-13 | 东营市蕴东石油科技有限公司 | Gravel packing tool capable of being used while being flushed |
| CN113638712A (en) * | 2021-08-30 | 2021-11-12 | 阜宁县宏达石化机械有限公司 | Reverse gravel throwing device |
| CN113914831A (en) * | 2021-11-08 | 2022-01-11 | 核工业北京化工冶金研究院 | Reverse gravel throwing device and method |
| CN113958293A (en) * | 2020-07-20 | 2022-01-21 | 中国石油化工股份有限公司 | Sand control pipe column capable of washing sand and reversely filling in pipe and filling device |
| CN114016976A (en) * | 2021-11-25 | 2022-02-08 | 核工业北京化工冶金研究院 | Gravel throwing valve assembly, forward gravel throwing device and forward gravel throwing method |
-
2015
- 2015-08-21 CN CN201520639054.2U patent/CN204941482U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503716A (en) * | 2016-06-14 | 2017-12-22 | 核工业北京化工冶金研究院 | A kind of ground-dipping uranium extraction built-in filter inversely throws gravel device |
| CN108716389A (en) * | 2018-08-17 | 2018-10-30 | 东营市瑞丰石油技术发展有限责任公司 | Valve plate type washes down packing tool |
| CN113958293A (en) * | 2020-07-20 | 2022-01-21 | 中国石油化工股份有限公司 | Sand control pipe column capable of washing sand and reversely filling in pipe and filling device |
| CN111878046A (en) * | 2020-09-02 | 2020-11-03 | 湖南中核勘探有限责任公司 | Reverse grain feeding device and method |
| CN111927404A (en) * | 2020-10-15 | 2020-11-13 | 东营市蕴东石油科技有限公司 | Gravel packing tool capable of being used while being flushed |
| CN111927404B (en) * | 2020-10-15 | 2020-12-18 | 东营市蕴东石油科技有限公司 | Gravel packing tool capable of being used while being flushed |
| CN113638712A (en) * | 2021-08-30 | 2021-11-12 | 阜宁县宏达石化机械有限公司 | Reverse gravel throwing device |
| CN113638712B (en) * | 2021-08-30 | 2024-05-28 | 阜宁县宏达石化机械有限公司 | Reverse gravel throwing device |
| CN113914831A (en) * | 2021-11-08 | 2022-01-11 | 核工业北京化工冶金研究院 | Reverse gravel throwing device and method |
| CN114016976A (en) * | 2021-11-25 | 2022-02-08 | 核工业北京化工冶金研究院 | Gravel throwing valve assembly, forward gravel throwing device and forward gravel throwing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |