CN203239300U - Modified ceramsite sand filter pipe - Google Patents
Modified ceramsite sand filter pipe Download PDFInfo
- Publication number
- CN203239300U CN203239300U CN 201320234100 CN201320234100U CN203239300U CN 203239300 U CN203239300 U CN 203239300U CN 201320234100 CN201320234100 CN 201320234100 CN 201320234100 U CN201320234100 U CN 201320234100U CN 203239300 U CN203239300 U CN 203239300U
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- pipe
- sand
- modified ceramsite
- sand filter
- filter cylinder
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Abstract
Provided is a modified ceramsite sand filter pipe. The modified ceramsite sand filter pipe comprises an upper connector (1), a spring seat (2), a spring (3), a screen pipe (4), a modified ceramsite filter cylinder (5) and a central pipe (6). The modified ceramsite sand filter pipe is characterized in that the modified ceramsite sand filter pipe is of a cylindrical structure, the upper connector (1) with internal threads is arranged at the upper end of the central pipe (6), external threads are arranged at the lower end of the central pipe (6), the spring seat (2) is arranged on the upper portion of the central pipe (6), the spring (3) and the modified ceramsite filter cylinder (5) are arranged on the lower portion of the central pipe (6) in a sleeved mode in sequence, and the stainless steel screen pipe (4) is arranged outside the modified ceramsite filter cylinder (5). The modified ceramsite sand filter pipe is novel in design, simple in structure, resistant to high temperature, high in strength and capable of resisting muddy blocking, solves the problem that multi-hole filtering media of an existing metal sand filter pipe are poor in high-temperature stability, achieves direct downward filtering production after steam injection, simplifies sand prevention operation of a thermal production well, reduces the cycling time, improves the success rate of sand prevention, prolongs the sand control life, reduces pollution of oil layers, and improves the effect of thickened oil thermal recovery development.
Description
Technical field
The utility model relates to oil extraction in oil field engineering sand control tool technique, specifically a kind of modification haydite sand screen.
Background technology
China's viscous crude loose sand oil accumulation has a very wide distribution, reserves are large, and reserves occupy an important position.The research and development of sand control technology is most important to the normal production of loose sand oil accumulation.Sand-preventing process is the basic oil production technology of this class oil reservoir, is the normal important guarantee of producing.At present mainly with the steam injection exploitation of handling up, for satisfying the requirement of high temperature, high pressure and the production of high strength steam injection, sand control mainly adopts screen casing gravel filling sand prevention and metal sand screen sand control to thick oil filling.The screen casing gravel filling sand prevention is with wrapping wire (slot) screen insertion oil reservoir position, carries out gravel pack again, forms a gravel gear reservoir sand, screen casing gear gravel two-stage sand block system, thus stop the stratum to enter pit shaft.See that by the field situation mainly there is following problem in this technique: at first, the screen casing gravel filling sand prevention process is complicated, and operating cost is higher, accounts for the well time long, affects crude oil production.Secondly, the screen casing gravel filling sand prevention easily stops up, and the production fluid amount descends very fast.Follow the tracks of statistical analysis according to the scene, approximately 20% oil well the sand control treatment opening well and making production after 1～2 month the production fluid amount obviously reduce, the range of decrease is more than 10%.The 3rd, screen casing gravel filling sand prevention tubing string post processing difficulty, the overhaul rate is high.After the screen casing gravel filling sand prevention lost efficacy, need trip out again sand of tubing string, owing to be filled with more than 20 meter gravel on its production screen, again through long-term deposition, compacting, and the sand control pipe kit is more, diameter differs, and is stepped, causes part well casing post unfreezing difficulty, need heavy repair task just can trip out, the overhaul rate is higher, about 8%, has greatly improved the sand control operating cost.Metal sand screen sand control is that the metal sand screen is lowered to the oil reservoir position, and the porous filter medium of metal sand screen stops reservoir sand to enter oil pipe, thereby plays the effect master of sand control.The construction of this anti-sand method is fairly simple, and post processing is more convenient, but because material and structure problem, and under hot conditions, the porous filter medium structural instability is easily shaked out during production or stopped up, and causes the sand control success rate low, and period of validity is short.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, has designed a kind of modification haydite sand screen.
The utility model comprises: top connection, spring base, spring, screen casing, modification haydite filter cylinder, central tube.Its modification haydite sand screen is columnar structured, and the central tube upper end is provided with the internal thread top connection, and the lower end is provided with external screw thread, and central tube top is provided with spring base, and the bottom is overlapped successively spring, modification haydite filter cylinder, and modification haydite filter cylinder is provided with the stainless steel sift pipe outward.For avoiding modification haydite filter cylinder high-temperature expansion to damage, utilize the performance of the free-extension of spring to compensate.
Central tube in the above-mentioned modification haydite sand screen is evenly equipped with interior inlet opening.
Modification haydite filter cylinder in the above-mentioned modification haydite sand screen is that the potter's clay particle is fired at 1200～1400 ℃ and formed, and is then carrying out surface modification treatment, and the order number is 60～80.
Be evenly equipped with outer inlet opening on the screen casing in the above-mentioned modification haydite sand screen.
The beneficial effects of the utility model are: modern design, and simple in structure, high temperature resistant, intensity is high, anti-shale stops up, and has solved the problem of metal current sand screen porous filter medium poor high temperature stability, has realized after the steam injection that directly lower filter is produced, simplify the thermal production well sand control treatment, shorten and turn time-of-week, improve the sand control success rate, prolong the sand control life, reduce oil layer pollution, improve the heavy crude heat extraction development effectiveness.
Description of drawings
Fig. 1-the utility model master looks and partly cuts open structural representation.
In the accompanying drawing, 1. top connection, 2. spring base, 3. spring, 4. screen casing, 5. modification haydite filter cylinder, 6 central tubes; A. interior inlet opening, the outer inlet opening of B..
The specific embodiment
Below in conjunction with accompanying drawing enforcement of the present utility model is further elaborated:
Modification haydite sand screen is comprised of top connection 1, spring base 2, spring 3, screen casing 4, modification haydite filter cylinder 5, central tube 6.Its modification haydite sand screen is columnar structured, central tube 6 upper ends are provided with internal thread top connection 1, and the lower end is provided with external screw thread, and central tube 6 tops are provided with spring base 2, the bottom is overlapped successively spring 3, modification haydite filter cylinder 5, the modification haydite filter cylinder 5 outer stainless steel sift pipes 4 that are provided with.
Method of operating
At first, require to trip out former well flow string in strict accordance with schematic design; Secondly, visit sand washing to plug back total depth (PBTD); The 3rd, by standard drifting, scraping sleeve pipe and clean pit shaft; The 4th, be lowered to modification haydite sand screen to design attitude, it is setting that grappling is suppressed in pitching, gives up to trip out operating tool string; The 5th, be lowered to flow string.
Claims (4)
1. a modification haydite sand screen comprises: top connection (1), spring base (2), spring (3), screen casing (4), modification haydite filter cylinder (5), central tube (6); It is characterized in that: described modification haydite sand screen is columnar structured, central tube (6) upper end is provided with internal thread top connection (1), the lower end is provided with external screw thread, central tube (6) top is provided with spring base (2), the bottom is overlapped successively spring (3), modification haydite filter cylinder (5), the outer stainless steel sift pipe (4) that is provided with of modification haydite filter cylinder (5).
2. modification haydite sand screen according to claim 1, it is characterized in that: described central tube (6) is evenly equipped with interior inlet opening (A).
3. modification haydite sand screen according to claim 1, it is characterized in that: described modification haydite filter cylinder (5) is fired structure for the potter's clay particle, and the order number is 60～80.
4. modification haydite sand screen according to claim 1 is characterized in that: be evenly equipped with outer inlet opening (B) on the described screen casing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320234100 CN203239300U (en) | 2013-05-03 | 2013-05-03 | Modified ceramsite sand filter pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320234100 CN203239300U (en) | 2013-05-03 | 2013-05-03 | Modified ceramsite sand filter pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239300U true CN203239300U (en) | 2013-10-16 |
Family
ID=49316610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320234100 Expired - Fee Related CN203239300U (en) | 2013-05-03 | 2013-05-03 | Modified ceramsite sand filter pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239300U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696982A (en) * | 2016-03-31 | 2016-06-22 | 河南东方龙机械制造有限公司 | Sand prevention tool vibrating together with pumping filter screen of oil well pump and application method |
| CN106555574A (en) * | 2015-09-25 | 2017-04-05 | 中国石油化工股份有限公司 | Sand control, steam injection integrated apparatus and method |
| CN108071374A (en) * | 2018-01-30 | 2018-05-25 | 天津盛鑫华瑞石油技术有限公司 | Anti- mud drum screen casing |
| CN112049612A (en) * | 2019-06-05 | 2020-12-08 | 中核通辽铀业有限责任公司 | Method for building replaceable filter in-situ leaching uranium mining production drill hole |
| CN112392447A (en) * | 2020-12-04 | 2021-02-23 | 中国石油大学(北京) | Sieve tube |
| CN112943177A (en) * | 2021-02-07 | 2021-06-11 | 中国石油大学(北京) | Variable density pre-filled sieve tube and using method thereof |
-
2013
- 2013-05-03 CN CN 201320234100 patent/CN203239300U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555574A (en) * | 2015-09-25 | 2017-04-05 | 中国石油化工股份有限公司 | Sand control, steam injection integrated apparatus and method |
| CN106555574B (en) * | 2015-09-25 | 2022-12-27 | 中国石油化工股份有限公司 | Sand prevention and steam injection integrated device and method |
| CN105696982A (en) * | 2016-03-31 | 2016-06-22 | 河南东方龙机械制造有限公司 | Sand prevention tool vibrating together with pumping filter screen of oil well pump and application method |
| CN108071374A (en) * | 2018-01-30 | 2018-05-25 | 天津盛鑫华瑞石油技术有限公司 | Anti- mud drum screen casing |
| CN112049612A (en) * | 2019-06-05 | 2020-12-08 | 中核通辽铀业有限责任公司 | Method for building replaceable filter in-situ leaching uranium mining production drill hole |
| CN112392447A (en) * | 2020-12-04 | 2021-02-23 | 中国石油大学(北京) | Sieve tube |
| CN112392447B (en) * | 2020-12-04 | 2022-04-19 | 中国石油大学(北京) | Sieve tube |
| CN112943177A (en) * | 2021-02-07 | 2021-06-11 | 中国石油大学(北京) | Variable density pre-filled sieve tube and using method thereof |
| CN112943177B (en) * | 2021-02-07 | 2022-02-18 | 中国石油大学(北京) | Variable-density pre-filled sieve tube and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20140503 |