CN104196473A - Filter special for managed pressure drilling - Google Patents
Filter special for managed pressure drilling Download PDFInfo
- Publication number
- CN104196473A CN104196473A CN201410395919.5A CN201410395919A CN104196473A CN 104196473 A CN104196473 A CN 104196473A CN 201410395919 A CN201410395919 A CN 201410395919A CN 104196473 A CN104196473 A CN 104196473A
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- Prior art keywords
- filter
- upper cover
- bearing pin
- cavity
- groove
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Abstract
The invention relates to a filter special for managed pressure drilling. The filter mainly solves the problem of the prior art that due to the fact that a flow pass is blocked easily by a filter for managed pressure drilling, pressure building of a wellhead is caused, and using is unsafe. The filter special for managed pressure drilling is characterized in that a body is composed of a horizontal main body drift diameter and a filter cavity, wherein a 30-degree included angle is formed between the main body drift diameter and the filter cavity, a filtering plate is inserted into the filter cavity, and a 30-degree included angle is formed between the filtering plate and the main body drift diameter; a filtering plate handle is inserted into a through hole in the upper end of the filtering plate, the top of the filter cavity is covered with an upper cover, the upper end of the filtering plate is clamped in a clamping groove in the lower portion of the upper cover, a groove is formed in the upper portion of the upper cover, an upper cover hinge pin is inserted into the groove, the two ends of the hinge pin are inserted into two radial through holes in the upper end of the filter cavity, and a downward lower port is vertically connected to the lower end of the filter cavity. According to the filter special for managed pressure drilling, the filter has a high filtering capacity, and therefore the flow pass can not be blocked easily.
Description
Technical field
The present invention relates to a kind of strainer in petroleum drilling technology field, particularly a kind of controlled pressure drilling private filter.
Background technology
Current controlled pressure drilling both domestic and external generally adopts the method that strainer is installed on self-choke manifold, utilizes the space in four-way on self-choke manifold to lay filter cylinder.The landwaste that this strainer once mounting can be filtered is few, needs the frequent cartridge filter of changing, and workload is very large; In the situation that returning out more than bulky grain landwaste, will stop up runner in the very short time, cause well head to build the pressure, threaten drilling safety.
Summary of the invention
Technical problem to be solved by this invention be overcome the existing controlled pressure drilling strainer existing in background technology easily stop up runner cause well head build the pressure use unsafe problem, and provide a kind of controlled pressure drilling private filter, this controlled pressure drilling private filter, strainer has larger filtration yield, runner is not easy blocked, easy and simple to handle, ensure safety in production.
The present invention solves its problem and can reach by following technical solution: this controlled pressure drilling private filter, comprises body, the main latus rectum of body that described body is level and become the strainer cavity composition of 30 ° of angles with the main latus rectum of body; Described strainer cavity interpolation enters filter, and filter becomes 30 ° of angles with the main latus rectum of body; Strainer cavity upper end radially has symmetrical 2 through holes, 2 through hole correspondences of strainer cavity upper end, and filter upper end has through hole, is inserted with filter handle in through hole; Strainer cavity top cover has upper cover, and upper cover bottom has draw-in groove, and draw-in groove blocks filter upper end; Upper cover top has groove, and groove interpolation is put cancelling axle, and strainer cavity upper end 2 through holes were radially inserted at bearing pin two ends; Upper cover bearing pin one end is connected to upper cover bearing pin screw; Upper cover is fixed on upper cover handle to cover by upper cover handle screw; Described strainer cavity lower end is vertically connected to downward lower port, described lower port radially has symmetrical 2 through holes, and described lower port is placed with lower cover, and lower cover bottom has groove, groove interpolation is put cancelling axle, and upper cover bearing pin was plugged in strainer cavity lower port 2 through holes radially; Lower cover bearing pin one end is connected to bearing pin screw; Lower cover handle screw is fixed on down lower cover handle to cover.
The present invention compares and can have following beneficial effect with above-mentioned background technology: this controlled pressure drilling private filter is owing to adopting said structure, and filter directly inserts in body, is conveniently packed into and is taken out by filter handle; Filter becomes 30 ° of angles with the main through hole of body, and the silt of being convenient to filter out flows out downwards; The filter bores of filter is consistent with through hole direction, reduces flow resistance; Filter is remained on operating position by groove on end cap and filter wiper block; Filter chamber is larger, has increased the amount of once filtering landwaste, thereby reduces chip removal number of times; Upper and lower end cap is conveniently packed into and is taken out by handle; Twice O type circle sealing strainer cavity is housed on end cap, and sealing is reliable; End cap is fixed on operating position by bearing pin, and the time of changing filter plate and cleaning landwaste has been saved in bearing pin easy installation and removal; Bottom is provided with sand discharge hole, large aperture, is convenient to remove sand.
brief description of the drawings:
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is blast structural representations of the present invention.
In figure: 1-upper cover handle screw, 2-upper cover handle, 3-upper cover bearing pin screw, 4-upper cover bearing pin, 5-upper cover, 6-upper cover O type circle, 7-filter handle, 8-filter, 9-body, 10-lower cover O type circle, 11-lower cover, 12-lower cover bearing pin, 13-lower cover bearing pin screw, 14-lower cover handle, 15-lower cover handle screw, 16-plug, 17-strainer cavity.
detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described:
If accompanying drawing 1 is in conjunction with as shown in Fig. 2, this controlled pressure drilling private filter comprises body 9, the main latus rectum of body that body 9 is level and become the strainer cavity 17 of 30 ° of angles with the main latus rectum of body; The interior insertion filter 8 of described strainer cavity 17, filter 8 becomes 30 ° of angles with the main latus rectum of body, and the silt of being convenient to filter out flows out downwards, and the filter bores of filter is consistent with the main latus rectum through hole of the body of level direction, to reduce flow resistance; Strainer cavity 17 upper ends radially have symmetrical 2 through holes, 2 through hole correspondences of strainer cavity 17 upper end, and filter 8 upper ends have through hole, are inserted with filter handle 7 in through hole, and filter handle conveniently packs into and takes out filter; Upper cover 5 is stamped at strainer cavity 17 tops, and upper cover 5 bottoms have draw-in groove, and draw-in groove blocks filter 8 upper ends; Upper cover 5 tops have groove, and groove interpolation is put cancelling axle 4, and strainer cavity 17 upper ends 2 through holes were radially inserted at bearing pin 4 two ends, and upper cover 5 is locked in operating position by upper cover bearing pin 4, and avoid its rotation; Upper cover bearing pin 4 one end are connected to upper cover bearing pin screw 3, and upper cover bearing pin screw 3 avoids upper cover bearing pin 4 to come off; Upper cover 5 is fixed on upper cover handle 2 on upper cover 5 by upper cover handle screw 1, is equipped with upper cover O type circle 6 between strainer cavity 17 and upper cover 5; Described strainer cavity 17 lower ends are vertically connected to downward lower port, described lower port radially has symmetrical 2 through holes, described lower port is placed with lower cover 11, lower cover 11 bottoms have groove, groove interpolation is put cancelling axle 12, upper cover bearing pin 12 was plugged in strainer cavity 17 lower port 2 through holes radially, and lower cover is locked in operating position by lower cover bearing pin, and avoid its rotation; Lower cover bearing pin 12 one end are connected to bearing pin screw 13, and cancelling axle screw 13 avoids lower cover bearing pin 12 to come off; Between lower cover 11 and strainer cavity 17 lower port, be equipped with lower cover O type circle 10, lower cover handle screw 15 is fixed on lower cover handle 14 on lower cover 11, the convenient operation to lower cover 11 of lower cover handle 14; ; Described strainer cavity 17 lower port one sides have through hole, are connected to plug 16 in through hole, and plug 16, at the excessive lower cover 11 that withstands of chamber pressure, is extracted lower cover bearing pin 12 at need, can carry out pressure release to chamber.
Described filter directly inserts in body, is conveniently packed into and is taken out by filter handle; Filter becomes 30 ° of angles with the main through hole of body, and the silt of being convenient to filter out flows out downwards, thereby has reduced the risk that filter bores is stopped up by landwaste; The filter bores of filter is consistent with through hole direction, reduces flow resistance; Filter is remained on operating position by groove on end cap and filter wiper block; Filter chamber is larger, has increased the amount of once filtering landwaste, thereby reduces chip removal number of times; Upper and lower end cap is conveniently packed into and is taken out by handle; Twice O type circle sealing strainer cavity is housed on end cap, and sealing is reliable; End cap is fixed on operating position by bearing pin, and the time of changing filter plate and cleaning landwaste has been saved in bearing pin easy installation and removal; Bottom is provided with sand discharge hole, large aperture, is convenient to remove sand.
Claims (4)
1. a controlled pressure drilling private filter, comprises body (9), it is characterized in that: described body (9) is for the main latus rectum of body of level and become strainer cavity (17) composition of 30 ° of angles with the main latus rectum of body; In described strainer cavity (17), insert filter (8), filter (8) becomes 30 ° of angles with the main latus rectum of body; Strainer cavity (17) upper end radially has symmetrical 2 through holes, 2 through hole correspondences of strainer cavity (17) upper end, and filter (8) upper end has through hole, is inserted with filter handle (7) in through hole; Upper cover (5) is stamped at strainer cavity (17) top, and upper cover (5) bottom has draw-in groove, and draw-in groove blocks filter (8) upper end; Upper cover (5) top has groove, and groove interpolation is put cancelling axle (4), and strainer cavity (17) upper end 2 through holes were radially inserted at bearing pin (4) two ends; Upper cover bearing pin (4) one end is connected to upper cover bearing pin screw (3); Upper cover (5) is fixed on upper cover handle (2) on upper cover (5) by upper cover handle screw (1); Described strainer cavity (17) lower end is vertically connected to downward lower port, described lower port radially has symmetrical 2 through holes, described lower port is placed with lower cover (11), lower cover (11) bottom has groove, groove interpolation is put cancelling axle (12), and upper cover bearing pin (12) was plugged in strainer cavity (17) lower port 2 through holes radially; Lower cover bearing pin (12) one end is connected to bearing pin screw (13); Lower cover handle screw (15) is fixed on lower cover handle (14) on lower cover (11).
2. controlled pressure drilling private filter according to claim 1, is characterized in that: the filter bores of described filter (8) is consistent with the main latus rectum through hole of the body direction of level.
3. controlled pressure drilling private filter according to claim 1, is characterized in that: between described strainer cavity (17) and upper cover (5), be equipped with upper cover O type circle (6); Between lower cover (11) and strainer cavity (17) lower port, be equipped with lower cover O type circle (10).
4. controlled pressure drilling private filter according to claim 1, is characterized in that: described strainer cavity (17) lower port one side has through hole, is connected to plug (16) in through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395919.5A CN104196473B (en) | 2014-08-13 | 2014-08-13 | Controlled pressure drilling private filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395919.5A CN104196473B (en) | 2014-08-13 | 2014-08-13 | Controlled pressure drilling private filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104196473A true CN104196473A (en) | 2014-12-10 |
| CN104196473B CN104196473B (en) | 2016-08-17 |
Family
ID=52081822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410395919.5A Expired - Fee Related CN104196473B (en) | 2014-08-13 | 2014-08-13 | Controlled pressure drilling private filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104196473B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116006101A (en) * | 2021-10-21 | 2023-04-25 | 中国石油天然气集团有限公司 | Pressure-control well drilling anti-blocking intelligent blocking removing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119496U (en) * | 1992-02-25 | 1992-10-21 | 大庆石油管理局钻井研究所 | Circulation type filtrate loss instrument for drilling fluid |
| CN101403279A (en) * | 2008-11-21 | 2009-04-08 | 李洪敏 | Well bottom booster pump and its supercharging method |
| CN201568042U (en) * | 2009-12-23 | 2010-09-01 | 中国石油天然气集团公司 | Pressure compensation device for managed pressure drilling |
| WO2011142894A1 (en) * | 2010-03-29 | 2011-11-17 | M-I L.L.C. | High pressure shear nozzle for inline conditioning of drilling mud |
| CN103015973A (en) * | 2012-12-24 | 2013-04-03 | 中国石油化工股份有限公司 | Simulation device for obtaining drilling parameter in pressure-controllable drilling |
| CN103180541A (en) * | 2010-09-15 | 2013-06-26 | 控制压力营运私人有限公司 | Managed pressure drilling apparatus |
| CN103615209A (en) * | 2013-11-14 | 2014-03-05 | 盐城市大冈石油工具厂有限责任公司 | Throttling and pressure regulating filter |
-
2014
- 2014-08-13 CN CN201410395919.5A patent/CN104196473B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119496U (en) * | 1992-02-25 | 1992-10-21 | 大庆石油管理局钻井研究所 | Circulation type filtrate loss instrument for drilling fluid |
| CN101403279A (en) * | 2008-11-21 | 2009-04-08 | 李洪敏 | Well bottom booster pump and its supercharging method |
| CN201568042U (en) * | 2009-12-23 | 2010-09-01 | 中国石油天然气集团公司 | Pressure compensation device for managed pressure drilling |
| WO2011142894A1 (en) * | 2010-03-29 | 2011-11-17 | M-I L.L.C. | High pressure shear nozzle for inline conditioning of drilling mud |
| CN103180541A (en) * | 2010-09-15 | 2013-06-26 | 控制压力营运私人有限公司 | Managed pressure drilling apparatus |
| CN103015973A (en) * | 2012-12-24 | 2013-04-03 | 中国石油化工股份有限公司 | Simulation device for obtaining drilling parameter in pressure-controllable drilling |
| CN103615209A (en) * | 2013-11-14 | 2014-03-05 | 盐城市大冈石油工具厂有限责任公司 | Throttling and pressure regulating filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116006101A (en) * | 2021-10-21 | 2023-04-25 | 中国石油天然气集团有限公司 | Pressure-control well drilling anti-blocking intelligent blocking removing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104196473B (en) | 2016-08-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Co-patentee after: DAQING PETROLEUM ADMINISTRATION Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Co-patentee before: DA QING PETROLEUM ADMINISTRATION BUREAU Patentee before: China National Petroleum Corp. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |