CN102828710A - Coiled tubing cable-passing check valve - Google Patents
Coiled tubing cable-passing check valve Download PDFInfo
- Publication number
- CN102828710A CN102828710A CN2012102818805A CN201210281880A CN102828710A CN 102828710 A CN102828710 A CN 102828710A CN 2012102818805 A CN2012102818805 A CN 2012102818805A CN 201210281880 A CN201210281880 A CN 201210281880A CN 102828710 A CN102828710 A CN 102828710A
- Authority
- CN
- China
- Prior art keywords
- cable
- cover
- seat
- ball
- valve seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012856 packing Methods 0.000 claims description 10
- 238000009827 uniform distribution Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Images
Abstract
The invention relates to the technical field of coiled tubing drilling, in particular to a coiled tubing cable-passing check valve. The outer conical surface of a cone at the upper end of a valve core of the device is matched with an inner conical surface at the lower end of a central hole of a valve seat, a cylinder at the lower end of the valve core penetrates through the central hole of a centering sleeve and is locked and fixed, a spring is sleeved outside the centering rod, the lower ends of a plurality of centering rods are screwed into threaded holes uniformly distributed on the upper circumference of a spring seat, the upper end of the centering rod penetrates through step holes on a wing of the centering sleeve and step holes uniformly distributed on the upper circumference of the valve seat in sequence and is connected with a hexagon nut, a cable penetrating sleeve penetrates through holes on the same axis of the spring seat, the centering sleeve and the valve seat from bottom to top in sequence, and a check valve assembly and the cable penetrating sleeve are. The invention realizes that the cable is allowed to pass through without influencing the function of the check valve, and has good sealing effect and long service life. The defects that the existing check valve cannot pass through a cable and is short in service life are overcome.
Description
Technical field:
The present invention relates to a kind of continuous pipe bit well technical field, particularly a kind of continuous cable ball-and-seat of managing.
Background technology:
In continuous pipe bit well process, a lot of drilling tools of development adopt electricity-liquid-machines to jointly control, and this just means that employed ball-and-seat must allow passing through of electricity cable in drill string.Domestic existing ball-and-seat does not all have cable to pass and prevent the function of drilling fluid through returning in the cable place at present.In addition, the structure that domestic ball-and-seat adopts sphere core, single spring thrust, single lining to set upright mostly, this ball-and-seat have be prone to lose efficacy, the life-span is short, can't cross shortcoming such as cable, therefore can't use in the pipe bit well construction continuously.
Summary of the invention:
The technical problem that the present invention will solve provides a kind of continuous cable ball-and-seat of managing, and this device has realized that the permission cable passes and do not influence ball-and-seat function, good sealing effect, long service life.Overcome existing ball-and-seat and can't cross cable, the deficiency that application life is short.
The technical scheme that the present invention taked is: a kind of continuous cable ball-and-seat of managing comprises top connection, urceolus and lower contact; Top connection, urceolus and lower contact are threaded in order; The ball-and-seat assembly is installed in the urceolus, and the ball-and-seat assembly comprises spring base, supporting positive cover and valve seat, and seat design has centre bore; The centre bore upper and lower side is internal conical surface; Spool adopts upper end cone, the cylindrical structure in lower end, and the male cone (strobilus masculinus) of upper end cone matches with the internal conical surface of valve base center hole lower end, and the lower end cylinder of spool passes and through spring shim, cap and cottor pin are locked fully from the centre bore of supporting positive cover; Supporting positive cover is a hollow circular cylinder, a plurality of fins of circumference uniform distribution on the cylinder; Righting rod is set with spring outward; A plurality of righting rods lower end is screwed in the screwed hole of circumference uniform distribution on the spring base; The stepped hole that the upper end is passed circumference uniform distribution on stepped hole and the valve seat on the supporting positive cover fin successively is connected with hex nut; Cable penetrated the cover from cable pass; Cable penetrates cover inside, lower end and is designed to the screw thread box, and baffle ring, cable seal packing element and adjustment ring set are contained on the cable and are installed in cable and penetrate in the cover box, and cable penetrates cover lower end box and comes the compression cable cartridge through connecting plug; Cable penetrates cover and passes the hole on the same axis of spring base, supporting positive cover and valve seat from bottom to top successively; And make its upper surface concordant with the upper surface of valve seat, and the two-stage step that cable penetrates the cover cylindrical outer surface cooperates with endoporus face of cylinder step and the lower surface of spring base respectively, and cable locking overlaps the lower end cable of packing into and penetrates in the endoporus of set upper side; The step surface of cable locking cover is stuck in the valve seat upper end surface, and ball-and-seat assembly and cable penetrate cover and be supported between the upper surface of lower surface and lower contact of top connection through shading ring and separation sleeve respectively up and down.
Fix through backing-up screw and axial back-up ring between top connection and the urceolus, and installation O RunddichtringO seals.
Fix through backing-up screw and axial back-up ring between urceolus and the lower contact, and installation O RunddichtringO seals.
Supporting positive cover is designed with 4 fins.
The quantity of righting rod is 4.
The cable seal packing element is designed to tubular structure, and along circumference spiral slot, the slit is 1mm.
Be designed to interior chamfering structure above the centre bore of spring base.
Cable penetrates between cover and the valve seat, between spring base and the urceolus, all seal between valve seat and the urceolus through the O RunddichtringO.
The invention has the beneficial effects as follows: the present invention penetrates the mode that cover passes spring base, supporting positive cover and valve seat from bottom to top successively owing to having adopted with cable; Thereby has a function that allows cable to pass; And do not influence the ball-and-seat function, good sealing effect, long service life.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to sectional drawing.
Fig. 3 is that the B-B of Fig. 1 is to sectional drawing.
Fig. 4 is that the C-C of Fig. 3 is to sectional drawing.
Fig. 5 is that the D-D of Fig. 1 is to sectional drawing.
Fig. 6 is the structural representation of spring base.
Fig. 7 is the vertical view of Fig. 6.
The specific embodiment:
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, a kind of continuous cable ball-and-seat of managing comprises top connection 1, urceolus 5 and lower contact 13; Top connection 1, urceolus 5 and lower contact 13 are threaded in order; The ball-and-seat assembly is installed in the urceolus 5, and the ball-and-seat assembly comprises spring base 11, supporting positive cover 16 and valve seat 8, and valve seat 8 is designed with centre bore; The centre bore upper and lower side is internal conical surface; Spool 15 adopts upper end cones, the cylindrical structure in lower end, and the male cone (strobilus masculinus) of upper end cone matches with the internal conical surface of valve seat 8 centre bore lower ends, and the lower end cylinder of spool 15 passes and through spring shim 17, cap 18 and cottor pin 19 are locked fully from the centre bore of supporting positive cover 16; Supporting positive cover 16 is a hollow circular cylinder, 4 fins of circumference uniform distribution on the cylinder; The righting rod 9 outer springs 10 that are set with; 4 righting rod 9 lower ends are screwed in the screwed hole of circumference uniform distribution on the spring base 11; The stepped hole that the upper end is passed circumference uniform distribution on stepped hole and the valve seat 8 on supporting positive cover 16 fins successively is connected with hex nut 7; Cable is penetrated cover from cable pass 20, require cable length will guarantee that at least the cable upper and lower side can expose about 100mm the centre bore of lower contact from the present invention.Cable penetrates cover inside, 20 lower end and is designed to the screw thread box; Baffle ring 21, cable seal packing element 22 and adjustment ring 23 are sleeved on the cable and are installed in cable and penetrate in cover 20 boxes; Cable penetrates cover 20 lower end boxes and comes compression cable cartridge 22 through connecting plug 24; Make between cable seal packing element 22 and the cable closely to contact, thereby make the drilling fluid that returns to penetrate the space that cover 20 arrives ball-and-seat assemblies upper end through cable.Cable penetrates the hole that cover 20 passes on spring base 11, supporting positive cover 16 and the valve seat 8 same axis from bottom to top successively; And make its upper surface concordant with the upper surface of valve seat 8; The two-stage step that cable penetrates cover 20 cylindrical outer surfaces cooperates with the endoporus face of cylinder step and the lower surface of spring base 11 respectively, penetrates the axial location of cover 20 with the restriction cable.Cable locking overlaps the 14 lower ends cable of packing into and penetrates in the endoporus of cover 20 upper ends, and the step surface of cable locking cover 14 is stuck in valve seat 8 upper end surfaces, has limited the axial location of cable locking cover 14.Ball-and-seat assembly and cable penetrate cover 20 and are supported between the upper surface of lower surface and lower contact 13 of top connection 1 through shading ring 6 and separation sleeve 12 respectively up and down.
All through backing-up screw 2 with axially back-up ring 3 is fixing, and O RunddichtringO 4 is installed is sealed between top connection 1 and the urceolus 5, between urceolus 5 and the lower contact 13.Cable seal packing element 22 is designed to tubular structure, and along circumference spiral slot, the slit is 1mm.Be designed to interior chamfering structure above the centre bore of spring base 11, be used for reducing the erosion of drilling fluid and reduce the pressure consumption of drilling fluid.Cable penetrates between cover 20 and the valve seat 8, between spring base 11 and the urceolus 5, all seal between valve seat 8 and the urceolus 5 through O RunddichtringO 4.
During The field; The present invention is installed between electric liquid machine control circulating valve and the electric liquid machine control directional orientation tool gets final product, drilling fluid gets into when of the present invention from top to bottom, and spool 15 is descending along righting rod 9 under the head of liquid effect with supporting positive cover 16; Compress the spring 10 that righting rod 9 overcoats simultaneously; This moment, spool 15 male cone (strobilus masculinus)s separated with valve seat 8 inner conical surfaces, and ball-and-seat is opened, thereby for flowing through of drilling fluid passage is provided.When creep into make up a joint with going down process in take place that mud is regurgitated or pit shaft in when blowout takes place; Spool 15 and supporting positive cover 16 will spring 10 screen resiliences and on return under the comprehensive function of head of liquid up rapidly along righting rod 9; This moment, spool 15 male cone (strobilus masculinus)s closely contacted with valve seat 8 inner conical surfaces; Ball-and-seat is closed, on return liquid can't to get into the drilling well tubing string inner.
It is understandable that; More than about specific descriptions of the present invention; Only be used to the present invention is described and be not to be subject to the described technical scheme of the embodiment of the invention; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention, to reach identical technique effect; As long as satisfy the use needs, all within protection scope of the present invention.
Claims (8)
1. manage the cable ball-and-seat continuously for one kind, comprised top connection (1), urceolus (5) and lower contact (13); It is characterized in that: top connection (1), urceolus (5) and lower contact (13) are threaded in order; Urceolus is equipped with the ball-and-seat assembly in (5); The ball-and-seat assembly comprises spring base (11), supporting positive cover (16) and valve seat (8); Valve seat (8) is designed with centre bore, and the centre bore upper and lower side is internal conical surface, and spool (15) adopts upper end cone, the cylindrical structure in lower end; The male cone (strobilus masculinus) of upper end cone matches with the internal conical surface of valve seat (8) centre bore lower end; The lower end cylinder of spool (15) from the centre bore of supporting positive cover (16) pass and through spring shim (17), be equipped with cap (18) and cottor pin (19) is locked, supporting positive cover (16) is a hollow circular cylinder, a plurality of fins of circumference uniform distribution on the cylinder; The outer spring (10) that is set with of righting rod (9); A plurality of righting rods (9) lower end is screwed into spring base (11) and goes up in the screwed hole of circumference uniform distribution; The stepped hole that the upper end is passed on supporting positive cover (16) fin successively is connected with hex nut (7) with the stepped hole that valve seat (8) is gone up circumference uniform distribution; Cable penetrated the cover (20) from cable pass; Cable penetrates cover (20) inside, lower end and is designed to the screw thread box; Baffle ring (21), cable seal packing element (22) and adjustment ring (23) are sleeved on the cable and are installed in cable and penetrate in cover (20) box; Cable penetrates cover (20) lower end box and comes compression cable cartridge (22) through connecting plug (24); Cable penetrates cover (20) and passes the hole on spring base (11), supporting positive cover (16) and the same axis of valve seat (8) from bottom to top successively; And make its upper surface concordant with the upper surface of valve seat (8), and the two-stage step that cable penetrates cover (20) cylindrical outer surface cooperates with the endoporus face of cylinder step and the lower surface of spring base (11) respectively, and cable locking cover (14) the lower end cable of packing into penetrates in the endoporus of cover (20) upper end; The step surface of cable locking cover (14) is stuck in valve seat (8) upper end surface, and ball-and-seat assembly and cable penetrate cover (20) and be supported between the upper surface of lower surface and lower contact (13) of top connection (1) through shading ring (6) and separation sleeve (12) respectively up and down.
2. according to the described continuous cable ball-and-seat of managing of claim 1, it is characterized in that: fixing between said top connection (1) and the urceolus (5) through backing-up screw (2) and axial back-up ring (3), and installation O RunddichtringO (4) seals.
3. according to the described continuous cable ball-and-seat of managing of claim 1, it is characterized in that: fixing between said urceolus (5) and the lower contact (13) through backing-up screw (2) and axial back-up ring (3), and installation O RunddichtringO (4) seals.
4. according to the described continuous cable ball-and-seat of managing of claim 1, it is characterized in that: said supporting positive cover (16) is designed with 4 fins.
5. according to the described continuous cable ball-and-seat of managing of claim 1, it is characterized in that: the quantity of said righting rod (9) is 4.
6. according to the described continuous cable ball-and-seat of managing of claim 1, it is characterized in that: said cable seal packing element (22) is designed to tubular structure, and along circumference spiral slot, the slit is 1mm.
7. according to the described continuous cable ball-and-seat of managing of claim 1, it is characterized in that: be designed to interior chamfering structure above the centre bore of said spring base (11).
8. according to the described continuous cable ball-and-seat of managing of claim 1, it is characterized in that: said cable penetrates between cover (20) and the valve seat (8), between spring base (11) and the urceolus (5), all seal through O RunddichtringO (4) between valve seat (8) and the urceolus (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102818805A CN102828710A (en) | 2012-08-09 | 2012-08-09 | Coiled tubing cable-passing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102818805A CN102828710A (en) | 2012-08-09 | 2012-08-09 | Coiled tubing cable-passing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102828710A true CN102828710A (en) | 2012-12-19 |
Family
ID=47331998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102818805A Pending CN102828710A (en) | 2012-08-09 | 2012-08-09 | Coiled tubing cable-passing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102828710A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352672A (en) * | 2013-06-18 | 2013-10-16 | 中国石油集团长城钻探工程有限公司 | Turbine vibration drag reduction device for penetrating cable during coiled tubing well drilling |
| CN105863535A (en) * | 2016-05-31 | 2016-08-17 | 中煤科工集团西安研究院有限公司 | Center cable-passing check valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040055749A1 (en) * | 2002-09-23 | 2004-03-25 | Lonnes Steven B. | Remote intervention logic valving method and apparatus |
| US20040154835A1 (en) * | 2000-03-14 | 2004-08-12 | Weatherford/Lamb, Inc. | Tong for wellbore operations |
| CN2714797Y (en) * | 2004-06-30 | 2005-08-03 | 辽河石油勘探局 | Check valve for controlling well track |
| CN200968212Y (en) * | 2006-11-22 | 2007-10-31 | 徐大庆 | Thick oil single flow valve |
| CN202157784U (en) * | 2011-07-08 | 2012-03-07 | 中国石油天然气股份有限公司 | Underground check valve |
-
2012
- 2012-08-09 CN CN2012102818805A patent/CN102828710A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040154835A1 (en) * | 2000-03-14 | 2004-08-12 | Weatherford/Lamb, Inc. | Tong for wellbore operations |
| US20040055749A1 (en) * | 2002-09-23 | 2004-03-25 | Lonnes Steven B. | Remote intervention logic valving method and apparatus |
| CN2714797Y (en) * | 2004-06-30 | 2005-08-03 | 辽河石油勘探局 | Check valve for controlling well track |
| CN200968212Y (en) * | 2006-11-22 | 2007-10-31 | 徐大庆 | Thick oil single flow valve |
| CN202157784U (en) * | 2011-07-08 | 2012-03-07 | 中国石油天然气股份有限公司 | Underground check valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352672A (en) * | 2013-06-18 | 2013-10-16 | 中国石油集团长城钻探工程有限公司 | Turbine vibration drag reduction device for penetrating cable during coiled tubing well drilling |
| CN103352672B (en) * | 2013-06-18 | 2015-12-09 | 中国石油集团长城钻探工程有限公司 | A kind of continuous-tube drilling well cable turbine vibration resistance absorber |
| CN105863535A (en) * | 2016-05-31 | 2016-08-17 | 中煤科工集团西安研究院有限公司 | Center cable-passing check valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |