CN102704890A - Controllable blanking plug - Google Patents
Controllable blanking plug Download PDFInfo
- Publication number
- CN102704890A CN102704890A CN2012101973216A CN201210197321A CN102704890A CN 102704890 A CN102704890 A CN 102704890A CN 2012101973216 A CN2012101973216 A CN 2012101973216A CN 201210197321 A CN201210197321 A CN 201210197321A CN 102704890 A CN102704890 A CN 102704890A
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- bar
- main body
- blanking plug
- dragging
- drag
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Abstract
The invention relates to a controllable blanking plug, which comprises a main body (1), a fishing rod (2) and a cam mechanism (3), wherein a core pin (4) is arranged under the fishing rod (2) in the main body (1); external threads (41) matched with internal threads (11) formed on the main body (1) are formed on the core pin (4); the core pin (4) is sheathed with a core pin return pressure spring (42); a ball seat (5) is installed on an inner wall of the main body (1) under the core pin (4); a valve ball (6) is arranged at the lower part of the ball seat (5) in the main body (1); and a valve ball pressure spring (7) is arranged at the lower part of the valve ball (6) in the main body (1). When being used in water injection operation, the controllable blanking plug has the advantages as follows: the process is simple, the controllable blanking plug is convenient to operate, the dropping-fishing efficiency is high, normal water injection operation cannot be influenced, and manpower and material resources can be saved. The controllable blanking plug can descend in a well along with a tube pillar, can directly perform flow regulation and water injection rather than being fished out and replaced after pressurization and pressure tests, and can improve the working efficiency.
Description
Technical field
The present invention relates to petroleum tool, be specifically related to a kind of oil-field flooding and transfer stream to use blanking plug.
Background technology
Often adopt during oil field well water filling operation at present and transfer the stream blanking plug,, be unfavorable for that tubing string suppresses pressurize because there is the seepage phenomenon in existing being not closed completely when transferring the stream blanking plug to close.The solution that adopts at present is to suppress pressure testing with the common blanking plug that dead mouth is installed, and the pipeline pressure testing is pulled common blanking plug out after accomplishing; Drop into and transfer the stream blanking plug, process is loaded down with trivial details, inconvenient operation; Pulling efficient is low, influences normal water filling operation, waste of manpower and material resources.
Summary of the invention
The objective of the invention is provides a kind of controllable type blanking plug to existing being not closed completely, existing the seepage phenomenon when transferring the stream blanking plug to close, being unfavorable for that tubing string suppresses the defective of pressurize.
Technical solution of the present invention is: it comprises main body, drags for bar and cam mechanism; The below of dragging for bar in the main body is provided with the upper end with dragging for bar lower end axial sliding fit and can be with dragging for the core bar that bar rotates; The core bar outer wall be provided with one section with main body inner wall on the external screw thread that matches of internal thread, make core bar dragged for bar to drive can in main body, move axially up and down when rotating and realize transferring stream, be set with the upper end roof pressure on the core bar at the core bar reseting pressuring spring of main body upper and lower end roof pressure on core bar; On the main body inner wall of core bar below the ball seat that inwall cooperates with the outer wall slipper seal of core bar lower end is installed, the ball seat below is provided with valve ball in the main body, and the valve ball below is provided with the upper end roof pressure at the valve ball stage clip of valve ball upper and lower end roof pressure on main body in the main body.
Technique effect of the present invention is: it is simple to use it to have process during the water filling operation, easy to operate, and pulling efficient is high, can not influence normal water filling operation, saves man power and material's advantage.Its adopts controllable type structure, when flow is realized control, also can control the on off state of blanking plug, and tight reliable in off position the time.It can be gone into the well with tubing string, suppresses after the pressure testing, need not pull replacing out, can directly transfer streamer water, increases work efficiency.
When blanking plug was in closed condition, ball valve and ball seat also were in closed condition, can bear and suppress the pressure that the pressure testing designing institute needs, and after completion is suppressed in pressure testing, directly carried out flow-control through instrument and got final product, and be more convenient to use.
Description of drawings
Accompanying drawing is the axial sectional view of the embodiment of the invention.
The specific embodiment
Shown in accompanying drawing; It comprises main body 1, drags for bar 2 and cam mechanism 3; The below of dragging for bar 2 in the main body 1 is provided with the upper end with dragging for bar 2 lower end axial sliding fits and can be with dragging for the core bar 4 that bar 2 rotates; Core bar 4 outer walls be provided with one section with main body 1 inwall on the external screw thread 41 that matches of internal thread 11, make core bar 4 dragged for bar 2 to drive can in main body 1, move axially up and down when rotating and realize transferring stream, be set with the upper end roof pressure on the core bar 4 at the core bar reseting pressuring spring 42 of main body 1 upper and lower end roof pressure on core bar 4; The ball seat 5 that inwall cooperates with core bar 4 lower end outer wall slipper seals is installed on main body 1 inwall of core bar 4 belows; Ball seat 5 belows are provided with valve ball 6 in the main body 1, and valve ball 6 belows are provided with the upper end roof pressure at the valve ball stage clip 7 of valve ball 6 upper and lower end roof pressures on main body 1 in the main body 1.
Drag for bar 2 and endwisely slip and be installed in the upper end of main body 1, drag for middle part that bar 2 is positioned at main body 1 and be set with the upper end roof pressure and dragging at main body 1 upper and lower end roof pressure and drag for bar stage clip 21 on the bar 2, drag for bar 2 can be main body 1 in by on pressure-raising contract and drag for upwards slip of bar stage clip 21; Cam mechanism 3 be positioned at drag for bar 2 belows be hinged on dragged on the main body 1 bar 2 spacing, when dragging for bar 2 and be positioned at bottom, draw in main body 1, dragging for bar 2 by on when carrying cam mechanism 3 rotations be projected into outside the main body 1.
Drag for drag on the bar 2 22 and main body 1 upper surface between be provided be stuck in drag for 22 and main body 1 upper surface between, side mouth and be sleeved on and drag on the bar 2, be installed in the locating piece 24 that drags on the bar 2 through bearing pin 23 from dragging for bar 2 sidepieces.
The lower end slip cap that drags for bar 2 is equipped with and drags for bar cover 25; The lower end of dragging for bar stage clip 21 is sleeved on the upper end of dragging for bar cover 25 and roof pressure and overlaps on the upper surface of 25 outer shroud platforms dragging for bar; Drag for and be set with the positioning sleeve 12 that is fixed in the main body 1 on the bar cover 25, the upper surface of the interior ring platform of positioning sleeve 12 lower ends is stuck in from bottom to top drags for lower surface limit that bar overlaps 25 outer shroud platforms and drags for bar cover 25 and move down.
Core bar 4 lower end closed, the sidewall of square core rod 4 is provided with the axial cylindrical void that lower end position is narrow, the top position, lower end is wide on core bar 4 lower surfaces, and the part that cylindrical void exposed ball seat 5 lower surfaces when core bar 4 moved down in main body 1 becomes gradually and plays the stream effect of transferring greatly.
Claims (10)
1. controllable type blanking plug; It comprises main body (1), drags for bar (2) and cam mechanism (3); It is characterized in that: the below of dragging for bar (2) in the main body (1) is provided with the upper end with dragging for bar (2) lower end axial sliding fit and can be with the core bar (4) that drags for bar (2) rotation; Core bar (4) outer wall be provided with one section with main body (1) inwall on the external screw thread (41) that matches of internal thread (11), make core bar (4) dragged for bar (2) to drive can in main body (1), move axially up and down when rotating and realize transferring stream, be set with the upper end roof pressure on the core bar (4) at the core bar reseting pressuring spring (42) of main body (1) upper and lower end roof pressure on core bar (4); On main body (1) inwall of core bar (4) below the ball seat (5) that inwall cooperates with core bar (4) lower end outer wall slipper seal is installed; The interior ball seat of main body (1) (5) below is provided with valve ball (6), and the interior valve ball of main body (1) (6) below is provided with the upper end roof pressure at the valve ball stage clip (7) of valve ball (6) upper and lower end roof pressure on main body (1).
2. controllable type blanking plug as claimed in claim 1; It is characterized in that the said bar (2) that drags for endwisely slips and is installed in the upper end of main body (1); Drag for middle part that bar (2) is positioned at main body (1) and be set with the upper end roof pressure and dragging at main body (1) upper and lower end roof pressure and drag for bar stage clip (21) on the bar (2), drag for bar (2) and can be main body (1) in be contracted and drag for upwards slip of bar stage clip (21) by last pressure-raising; Cam mechanism (3) be positioned at drag for bar (2) below be hinged on dragged on the main body (1) bar (2) spacing, when dragging for bar (2) and be positioned at bottom, draw in main body (1), dragging for bar (2) by on when carrying cam mechanism (3) rotation be projected into outside the main body (1).
3. controllable type blanking plug as claimed in claim 2, it is characterized in that said drag for drag on the bar (2) be provided with between head (22) and main body (1) upper surface be stuck in drag between head (22) and main body (1) upper surface, side mouth and be sleeved on to drag for and be installed in the locating piece (24) that drags on the bar (2) on the bar (2), through bearing pin (23) from dragging for bar (2) sidepiece.
4. controllable type blanking plug as claimed in claim 2; It is characterized in that the said lower end slip cap that drags for bar (2) is equipped with drags for bar cover (25); The lower end of dragging for bar stage clip (21) is sleeved on the upper end of dragging for bar cover (25) and roof pressure on the upper surface of dragging for bar cover (25) outer shroud platform; Drag for and be set with the positioning sleeve (12) that is fixed in the main body (1) on the bar cover (25), the upper surface of the interior ring platform of positioning sleeve (12) lower end is stuck in the lower surface limit of dragging for bar cover (25) outer shroud platform from bottom to top and drags for bar cover (25) and move down.
5. controllable type blanking plug as claimed in claim 1; It is characterized in that said cam mechanism (3) below be provided be sleeved on that core bar (4) is gone up, is slidingly mounted in the main body (1), lower surface and core bar (4) spacer of clamping (43) mutually, core bar reseting pressuring spring (42) is sleeved on the spacer (43), its lower end roof pressure is on outer shroud platform upper surface, spacer (43) lower end.
6. controllable type blanking plug as claimed in claim 1; It is characterized in that said core bar (4) lower end closed; The sidewall of square core rod (4) is provided with the axial cylindrical void that lower end position is narrow, the top position, lower end is wide on core bar (4) lower surface, and the part that cylindrical void exposed ball seat (5) lower surface when core bar (4) moved down in main body (1) becomes gradually and plays the stream effect of transferring greatly.
7. controllable type blanking plug as claimed in claim 1, it is characterized in that said main body (1) by the plug screw (13) that links to each other through screw thread in order from the top down, go up main body (14), main body (15), loose liquid cover (16) and sand control cap (17) formation down.
8. controllable type blanking plug as claimed in claim 7; It is characterized in that the said cam mechanism (3) that drags for is made up of cam (31) and torsion spring, cam (31) is hinged on the camshaft (18) on the main body (14), torsion spring one end is stuck on the main body (14), an end is stuck in and is sleeved on (18) on the camshaft on the cam (31).
9. controllable type blanking plug as claimed in claim 7, it is characterized in that said main body (1) go up with core bar (4) on the internal thread (11) that matches of external screw thread (41) be located at down on the inwall of main body (15).
10. controllable type blanking plug as claimed in claim 7, the sidewall that it is characterized in that said diffusing liquid cover (16) be provided with core bar (4) sidewall on the circumferential cylindrical void that is rotatably assorted of cylindrical void.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101973216A CN102704890A (en) | 2012-06-15 | 2012-06-15 | Controllable blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101973216A CN102704890A (en) | 2012-06-15 | 2012-06-15 | Controllable blanking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102704890A true CN102704890A (en) | 2012-10-03 |
Family
ID=46897916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101973216A Pending CN102704890A (en) | 2012-06-15 | 2012-06-15 | Controllable blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102704890A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422064A (en) * | 2015-12-24 | 2016-03-23 | 牡丹江博实石油机械科技有限公司 | Special profile control device |
| CN106437648A (en) * | 2016-12-21 | 2017-02-22 | 牡丹江博实石油机械科技有限公司 | Zero leakage loss flow regulating and blocking device |
| CN106837242A (en) * | 2017-03-27 | 2017-06-13 | 牡丹江博实石油机械科技有限公司 | Blowout-proof apparatus of oil well |
| CN107575192A (en) * | 2017-09-30 | 2018-01-12 | 牡丹江博实石油机械科技有限公司 | Ground is adjustable distributor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB473093A (en) * | 1936-05-23 | 1937-10-06 | Hydril Co | Well pipe plug |
| CN2588040Y (en) * | 2002-12-10 | 2003-11-26 | 四川石油管理局钻采工艺技术研究院 | One-direction pressure-fixed joint |
| CN201095970Y (en) * | 2007-07-13 | 2008-08-06 | 孔宪春 | Packer preventing refluence of injected water |
| CN201206461Y (en) * | 2008-05-19 | 2009-03-11 | 刘秀英 | Clogging pressure gauge |
| CN201486513U (en) * | 2009-09-21 | 2010-05-26 | 大庆油田有限责任公司 | Single-open screwed adjustable blanking plug |
| CN201620813U (en) * | 2010-01-19 | 2010-11-03 | 毛元红 | Steady flow adjustable blanking plug |
| CN201730582U (en) * | 2010-08-01 | 2011-02-02 | 董力维 | Constant flow adjustable blanking plug |
| CN201730580U (en) * | 2010-07-12 | 2011-02-02 | 毛元红 | Flow-stabilizing adjustable and multifunctional blocking device |
| CN202628021U (en) * | 2012-06-15 | 2012-12-26 | 马中原 | Controllable blanking plug |
-
2012
- 2012-06-15 CN CN2012101973216A patent/CN102704890A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB473093A (en) * | 1936-05-23 | 1937-10-06 | Hydril Co | Well pipe plug |
| CN2588040Y (en) * | 2002-12-10 | 2003-11-26 | 四川石油管理局钻采工艺技术研究院 | One-direction pressure-fixed joint |
| CN201095970Y (en) * | 2007-07-13 | 2008-08-06 | 孔宪春 | Packer preventing refluence of injected water |
| CN201206461Y (en) * | 2008-05-19 | 2009-03-11 | 刘秀英 | Clogging pressure gauge |
| CN201486513U (en) * | 2009-09-21 | 2010-05-26 | 大庆油田有限责任公司 | Single-open screwed adjustable blanking plug |
| CN201620813U (en) * | 2010-01-19 | 2010-11-03 | 毛元红 | Steady flow adjustable blanking plug |
| CN201730580U (en) * | 2010-07-12 | 2011-02-02 | 毛元红 | Flow-stabilizing adjustable and multifunctional blocking device |
| CN201730582U (en) * | 2010-08-01 | 2011-02-02 | 董力维 | Constant flow adjustable blanking plug |
| CN202628021U (en) * | 2012-06-15 | 2012-12-26 | 马中原 | Controllable blanking plug |
Non-Patent Citations (1)
| Title |
|---|
| 韩兵奇 等: "密闭自控式注水工艺管柱的研制与现场试验", 《断块油气田》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422064A (en) * | 2015-12-24 | 2016-03-23 | 牡丹江博实石油机械科技有限公司 | Special profile control device |
| CN105422064B (en) * | 2015-12-24 | 2017-09-05 | 牡丹江博实石油机械科技有限公司 | Special profile control device |
| CN106437648A (en) * | 2016-12-21 | 2017-02-22 | 牡丹江博实石油机械科技有限公司 | Zero leakage loss flow regulating and blocking device |
| CN106837242A (en) * | 2017-03-27 | 2017-06-13 | 牡丹江博实石油机械科技有限公司 | Blowout-proof apparatus of oil well |
| CN107575192A (en) * | 2017-09-30 | 2018-01-12 | 牡丹江博实石油机械科技有限公司 | Ground is adjustable distributor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |