CN202970550U - Rotational-flow sand washing and deblocking pipe column for horizontal well - Google Patents
Rotational-flow sand washing and deblocking pipe column for horizontal well Download PDFInfo
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- CN202970550U CN202970550U CN 201220573228 CN201220573228U CN202970550U CN 202970550 U CN202970550 U CN 202970550U CN 201220573228 CN201220573228 CN 201220573228 CN 201220573228 U CN201220573228 U CN 201220573228U CN 202970550 U CN202970550 U CN 202970550U
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Abstract
The utility model discloses a rotational-flow sand washing and deblocking pipe column for a horizontal well, which comprises a sleeve and a sand washing oil pipe arranged in the sleeve, wherein a sand washing assembly is arranged on the sand washing oil pipe in the sleeve, and comprises a bridge double-pipe sand washing channel and a rotational-flow sand washing and deblocking device; the bridge double-pipe sand washing channel comprises an outer pipe and an inner pipe that are sleeved with each other; the upper ends of the outer pipe and the inner pipe are connected with the sand washing oil pipe by a bridge bi-pass joint simultaneously; and the lower ends of the outer pipe and the inner pipe are connected with the rotational-flow sand washing and deblocking device by a rotational-flow sand washing joint simultaneously. The rotational-flow sand washing and deblocking pipe column effectively improves the washing capacity and the carrying capacity of a working fluid; the sand washing efficiency is improved; the problems that sand washing of the horizontal well requires a high-displacement sand washing fluid, a sand washing effect is poor, and a sand washing pipe column is clamped easily are solved; and the rotational-flow sand washing and deblocking pipe column plays important significances in sand washing and deblocking construction for the horizontal well.
Description
Technical field
The utility model relates to the sand-removing unblocking tubing string, specifically a kind of horizontal well eddy flow sand-removing unblocking tubing string.
Background technology
Along with oil field development need horizontal well more and more, in the when repairing horizontal well operation sand-removing unblocking construction also more and more frequent, the oil field does not also have a kind of more successful construction technology, the sand-removing unblocking efficiency of construction of the well of effectively improving the standard now.In horizontal well, deposit is residual solid precipitation after drilling cuttings, oil-sand, workover fluid, completion fluid and other well stimulations construction.Reservoir sand moves to pit shaft with crude oil, and the sand setting bed is formed at the bottom that sand setting is attached to the net horizontal section casing space, and in gravity, differential pressure action deposit, the sand setting bed solidifies.In the sand washing process, the sand setting bed is very difficult destroyed, and sand cleaning fluid easily forms " short circuit " at the sleeve pipe upper space, and the sand on the borehole wall is difficult to be rushed fully.The sand grains that has rushed easily deposits under Action of Gravity Field again at high angle hole section, net horizontal section, causes the accident.Because above phenomenon causes horizontal well sand washing de-plugging efficient low, difficulty of construction is large.
The main method of field by using is to adopt the large discharge capacity sand-removing unblocking of connection pump now, this kind method generally is used for positive sand washing, namely strengthen the flowing velocity of circulation fluid, increase workover fluid to the impact of shaft bottom sand setting, destroy the sand setting bed and make sand be suspended in that in working solution, the working solution with higher circulation rate returns out well head.But because the oil sets annular space circulation area is larger, if net horizontal section is longer, under Action of Gravity Field, is pasting the sleeve pipe bottom and also can form the sand setting bed, affecting the sand washing effect, using double pump to cause waste.Adopt inverse circular sand washing adapter: inverse circular sand washing adapter effectively raises the carrying capacity of circulation fluid, but the impact force to the shaft bottom is little, the sand that is adsorbed on the borehole wall can not have been rushed fully, have a strong impact on the sand washing effect, if blindly strengthen operational discharge capacity under certain condition, also can cause a large amount of leakages of working solution, cause the pollution to the stratum.
In view of this, for the problems referred to above, propose a kind of reasonable in design and effectively improve the horizontal well eddy flow sand-removing unblocking tubing string of above-mentioned disappearance.
Summary of the invention
The purpose of this utility model is to provide a kind of horizontal well eddy flow sand-removing unblocking tubing string, effectively improves flushing and the carrying capacity of working solution, and sand washing efficient is improved.Solving horizontal well sand washing needs large discharge capacity sand cleaning fluid, sand washing weak effect, and the problem of easily blocking sand-flushing pipe column, significant to horizontal well sand washing de-plugging construction.
in order to reach above-mentioned purpose, the utility model has adopted following technical scheme, a kind of horizontal well eddy flow sand-removing unblocking tubing string, comprise sleeve pipe and be arranged on the sand washing oil pipe of inside pipe casing, be provided with the sand washing assembly on sand washing oil pipe in described sleeve pipe, described sand washing assembly comprises bridge-type double-barrel blasting passage and eddy flow sand-removing unblocking device, described bridge-type double-barrel blasting passage comprises outer tube and the inner tube that is nested, and the inner and outer pipes upper end is connected on the sand washing oil pipe by the bridge-type duplex fitting simultaneously, and the inner and outer pipes lower end is connected on eddy flow sand-removing unblocking device by eddy flow sand washing joint simultaneously.
Described bridge-type duplex fitting is designed with two passages, and a side path, an annulus access, two passages be UNICOM not mutually.
Described outer tube bottom offers the eyelet of sand cleaning fluid circulation, and described inner tube lower end communicates with the inner chamber of eddy flow sand washing joint, and with outer tube wall formation hermetically-sealed construction.
Also be connected with cup packer and tubing centrilizer on described outer tube, tubing centrilizer is positioned at the below of cup packer and both are placed in the middle.
Described tubing centrilizer is with being threaded on outer tube or adopting the elastic centralizer structure directly to be enclosed within on outer tube.
Described eddy flow sand-removing unblocking device also comprises eddy flow sand washing turbine, sand-washing pen point, described eddy flow sand washing Cover For A Turbine is placed in eddy flow sand washing joint inner chamber on central axis and with central axis, described central axis upper end is provided with projection and movable being fastened on the baffle plate that eddy flow sand washing joint inner chamber arranges, and the central axis lower end is connected on sand-washing pen point.
Be processed with through hole in the middle of described eddy flow sand washing turbine, with the central axis matched in clearance, can rotate around central axis, be processed with spiral vane outside eddy flow sand washing turbine.
Screw the standby cap of corresponding eddy flow sand washing turbine lower surface on described central axis.
The front end of described sand-washing pen point is pyramidal structure, and the rear end is connected with central axis by screw thread.
Compared to prior art, the utlity model has following beneficial effect:
The utility model eddy flow sand-removing unblocking tubing string for horizontal well sand major sedimentary in horizontal segment sleeve pipe bottom, be close to the characteristics on internal surface of sleeve pipe, at first increase working solution to the flushing of internal surface of sleeve pipe when construction, the sand of net horizontal section could have been rushed fully like this, then increase workover fluid on return carrying capacity, realize effective sand washing construction.Effectively improve flushing and the carrying capacity of working solution, sand washing efficient is improved.
Description of drawings
Fig. 1 is the structural representation of a kind of horizontal well eddy flow of the utility model sand-removing unblocking tubing string;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1.
In figure: sand washing oil pipe 1, sleeve pipe 2, bridge-type duplex fitting 3, inner tube 4, outer tube 5, cup packer 6, tubing centrilizer 7, eddy flow sand washing joint 8, central axis 9, eddy flow sand washing turbine 10, standby cap 11, sand-washing pen point 12.
The specific embodiment
Relevant detailed description of the present utility model and technology contents coordinate description of drawings as follows, yet accompanying drawing only provides the use of reference with explanation, and the utility model is limited.
Shown in Fig. 1-3, a kind of horizontal well eddy flow sand-removing unblocking tubing string, comprise sleeve pipe 2 and be arranged on the sand washing oil pipe 1 of inside pipe casing, be provided with the sand washing assembly on sand washing oil pipe in described sleeve pipe, described sand washing assembly comprises bridge-type double-barrel blasting passage and eddy flow sand-removing unblocking device, described bridge-type double-barrel blasting passage comprises outer tube 5 and the inner tube 4 that is nested, and the inner and outer pipes upper end is connected on the sand washing oil pipe by bridge-type duplex fitting 3 simultaneously, and the inner and outer pipes lower end is connected on eddy flow sand-removing unblocking device by eddy flow sand washing joint 8 simultaneously.
sand washing oil pipe 1, sleeve pipe 2, bridge-type duplex fitting 3, inner tube 4, outer tube 5, cup packer 5, centralizer 7 forms bridge-type double-barrel blasting passage, bridge-type duplex fitting 3 is designed with two passages, a side path, an annulus access, two passages are UNICOM not mutually, one end of its middle external tube 5 is connected with the external screw thread of passageway bridge joint 3, inner tube 4 is threaded with the central passage of passageway bridge joint 3, the other end of outer tube 5 is threaded with eddy flow sand washing joint 8, be processed with the eyelet for the sand cleaning fluid circulation in the bottom of outer tube 5, inner tube 4 other ends communicate with the inner chamber of eddy flow sand washing joint 8, and form hermetically-sealed construction with outer tube 5 inwalls, sand cleaning fluid by inner tube 4 can be through directly not entering the inner and outer pipes ring cavity herein, outer tube 5 is connected with cup packer 6, be used for Seal Oil cover annular space, make sand cleaning fluid enter inner tube from the inlet of passageway bridge, and can not directly enter 6 belows of cup packer, and cup packer 6 can be with the tubing string formation movable sealing that moves up and down in the sand washing process.Connected pipes centralizer 7 below cup packer 6 guarantees that sand-flushing pipe column and cup packer 6 are placed in the middle, and centralizer 7 can with being threaded on outer tube 5, also can adopt the elastic centralizer structure directly to be enclosed within on outer tube 5.
Eddy flow sand-removing unblocking device is comprised of eddy flow sand washing joint 8, central axis 9, eddy flow sand washing turbine 10, standby cap 11, sand-washing pen point 12.be processed with baffle plate in the middle of eddy flow sand washing joint 8, be processed with the through hole that passes for central axis 9 in the middle of baffle plate, also be processed with the eyelet that flows through for sand cleaning fluid around central through hole, central axis 9 passes from central through hole, one end of central axis 9 is processed with projection, guarantee to be positioned at a side of baffle plate after passing central aperture, on the central axis that eddy flow sand washing turbine 10 is through by baffle plate, then being threaded with standby cap 11 and central axis 9 other ends, spacing on central axis eddy flow sand washing turbine 10, be processed with through hole in the middle of eddy flow sand washing turbine 10, with central axis 9 matched in clearance, can be around central axis 9 rotations, the outside is processed with spiral vane, in rotation on central axis 9 under the impact of high flow rate sand cleaning fluid, produce rotating vortex under the instrument turning effort, sand cleaning fluid is after the inclined-plane jet flow goes out, being certain spray angle impacts on internal surface of sleeve pipe, realize border irrigating cannula inwall, make and be deposited on that on internal surface of sleeve pipe, oil-sand has been rushed, do High Rotation Speed with working solution, accelerate to wash away the sand setting in sleeve pipe.Front end at central axis 9 is equipped with sand-washing pen point 12, and sand-washing pen point 12 front ends are connected with central axle threads with certain tapering, are used for smashing to pieces hard sand setting.
When the utility model uses, referring to accompanying drawing 1, during sand washing, sand cleaning fluid enters the top of cup packer 6 from the circulation of oil jacket annular space, enter inner tube 4 along bridge-type duplex fitting 3 side direction inlets, sand cleaning fluid impacts 10 rotations of eddy flow sand washing turbine, drive sand cleaning fluid after the inclined-plane jet flow goes out, being certain spray angle impacts on internal surface of sleeve pipe, then the mixture of sand cleaning fluid and the grains of sand enters the annular space of inner tube 4 and outer tube 5 along the eyelet on outer tube 5, enter oil pipe 1 through the annular space fluid of bridge type duplex fitting 3 is logical, be circulated to ground.
The above is only preferred embodiment of the present utility model, and non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (1)
1. horizontal well eddy flow sand-removing unblocking tubing string, comprise sleeve pipe and be arranged on the sand washing oil pipe of inside pipe casing, it is characterized in that, be provided with the sand washing assembly on sand washing oil pipe in described sleeve pipe, described sand washing assembly comprises bridge-type double-barrel blasting passage and eddy flow sand-removing unblocking device, described bridge-type double-barrel blasting passage comprises outer tube and the inner tube that is nested, and the inner and outer pipes upper end is connected on the sand washing oil pipe by the bridge-type duplex fitting simultaneously, and the inner and outer pipes lower end is connected on eddy flow sand-removing unblocking device by eddy flow sand washing joint simultaneously.
2. a kind of horizontal well eddy flow sand-removing unblocking tubing string according to claim 1, is characterized in that, described bridge-type duplex fitting is designed with two passages, and a side path, an annulus access, two passages be UNICOM not mutually.
3. a kind of horizontal well eddy flow sand-removing unblocking tubing string according to claim 1, is characterized in that, described outer tube bottom offers the eyelet of sand cleaning fluid circulation, and described inner tube lower end communicates with the inner chamber of eddy flow sand washing joint, and with outer tube wall formation hermetically-sealed construction.
4. a kind of horizontal well eddy flow sand-removing unblocking tubing string according to claim 1, is characterized in that, also is connected with cup packer and tubing centrilizer on described outer tube, and tubing centrilizer is positioned at the below of cup packer and both are placed in the middle.
5. a kind of horizontal well eddy flow sand-removing unblocking tubing string according to claim 4, is characterized in that, described tubing centrilizer is with being threaded on outer tube or adopting the elastic centralizer structure directly to be enclosed within on outer tube.
6. a kind of horizontal well eddy flow sand-removing unblocking tubing string according to claim 1, it is characterized in that, described eddy flow sand-removing unblocking device also comprises eddy flow sand washing turbine, sand-washing pen point, described eddy flow sand washing Cover For A Turbine is placed in eddy flow sand washing joint inner chamber on central axis and with central axis, described central axis upper end is provided with projection and movable being fastened on the baffle plate that eddy flow sand washing joint inner chamber arranges, and the central axis lower end is connected on sand-washing pen point.
7. a kind of horizontal well eddy flow sand-removing unblocking tubing string according to claim 6, is characterized in that, is processed with through hole in the middle of described eddy flow sand washing turbine, with the central axis matched in clearance, can rotate around central axis, is processed with spiral vane outside eddy flow sand washing turbine.
8. a kind of horizontal well eddy flow sand-removing unblocking tubing string according to claim 6, is characterized in that, screws the standby cap of corresponding eddy flow sand washing turbine lower surface on described central axis.
9. a kind of horizontal well eddy flow sand-removing unblocking tubing string according to claim 6, is characterized in that, the front end of described sand-washing pen point is pyramidal structure, and the rear end is connected with central axis by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220573228 CN202970550U (en) | 2012-11-02 | 2012-11-02 | Rotational-flow sand washing and deblocking pipe column for horizontal well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220573228 CN202970550U (en) | 2012-11-02 | 2012-11-02 | Rotational-flow sand washing and deblocking pipe column for horizontal well |
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| CN202970550U true CN202970550U (en) | 2013-06-05 |
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| CN 201220573228 Expired - Fee Related CN202970550U (en) | 2012-11-02 | 2012-11-02 | Rotational-flow sand washing and deblocking pipe column for horizontal well |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103343671A (en) * | 2013-07-17 | 2013-10-09 | 濮阳市东昊机械电子有限公司 | Small washpipe continuous sand washing tubular column |
| CN103397858A (en) * | 2013-07-24 | 2013-11-20 | 濮阳泰和油气工程有限公司 | Drainage and production combined sand washing machine for coal bed gas and method for applying drainage and production combined sand washing machine |
| CN104074485A (en) * | 2014-06-27 | 2014-10-01 | 西安中孚凯宏石油科技有限责任公司 | Horizontal well leakage-proof rotational flow sand-washing device and sand-washing technology thereof |
| CN105464586A (en) * | 2015-12-31 | 2016-04-06 | 中国石油天然气股份有限公司 | Horizontal well reverse circulation jet flow screw drill |
| CN105804678A (en) * | 2015-09-18 | 2016-07-27 | 中国石油化工股份有限公司 | Underground sand removing, blocking removing and backwashing device for oil-water well |
| CN106194112A (en) * | 2016-09-08 | 2016-12-07 | 中国海洋石油总公司 | A kind of oil well pipe cleaning sand washing integrated apparatus and pipe cleaning sand washing method |
| CN106368630A (en) * | 2016-10-10 | 2017-02-01 | 中国石油化工股份有限公司 | Method and special tool for sand flushing |
| CN110578489A (en) * | 2019-08-14 | 2019-12-17 | 中国石油化工股份有限公司 | sand washing and blockage removing pipe column |
| CN112459735A (en) * | 2020-11-02 | 2021-03-09 | 中海油田服务股份有限公司 | Rotational flow sand washing process pipe column |
| CN114458210A (en) * | 2020-10-22 | 2022-05-10 | 中国石油化工股份有限公司 | Jet flow blockage removal and negative pressure flowback integrated process pipe column and using method |
| CN115387751A (en) * | 2022-08-29 | 2022-11-25 | 西南石油大学 | Underground reverse rotational flow opposite-flushing cavitation device |
| CN115653543A (en) * | 2022-10-27 | 2023-01-31 | 中国石油天然气集团有限公司 | Oil well sand washing and well washing conversion device, oil well sand washing and well washing system and method |
| CN115992658A (en) * | 2023-03-22 | 2023-04-21 | 山东成林石油工程技术有限公司 | Multi-pass jet flow blocking removal oil extraction device and use method |
| CN116181256A (en) * | 2021-11-26 | 2023-05-30 | 中国石油天然气股份有限公司 | Sand flushing well flushing pipe column suitable for secondary sand prevention horizontal well |
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2012
- 2012-11-02 CN CN 201220573228 patent/CN202970550U/en not_active Expired - Fee Related
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| CN103343671B (en) * | 2013-07-17 | 2016-12-28 | 濮阳市东昊机械电子有限公司 | Little washing pipe continuous flushing sand tubular column |
| CN103343671A (en) * | 2013-07-17 | 2013-10-09 | 濮阳市东昊机械电子有限公司 | Small washpipe continuous sand washing tubular column |
| CN103397858A (en) * | 2013-07-24 | 2013-11-20 | 濮阳泰和油气工程有限公司 | Drainage and production combined sand washing machine for coal bed gas and method for applying drainage and production combined sand washing machine |
| CN103397858B (en) * | 2013-07-24 | 2015-11-04 | 濮阳泰和油气工程有限公司 | Coal bed gas extraction associating sand washing machine and application process |
| CN104074485A (en) * | 2014-06-27 | 2014-10-01 | 西安中孚凯宏石油科技有限责任公司 | Horizontal well leakage-proof rotational flow sand-washing device and sand-washing technology thereof |
| CN104074485B (en) * | 2014-06-27 | 2016-08-31 | 西安中孚凯宏石油科技有限责任公司 | A kind of horizontal well lost circulation prevention cyclone sand washing device device and sand washing process thereof |
| CN105804678A (en) * | 2015-09-18 | 2016-07-27 | 中国石油化工股份有限公司 | Underground sand removing, blocking removing and backwashing device for oil-water well |
| CN105464586B (en) * | 2015-12-31 | 2017-11-07 | 中国石油天然气股份有限公司 | Horizontal well reverse circulation jet flow screw drill |
| CN105464586A (en) * | 2015-12-31 | 2016-04-06 | 中国石油天然气股份有限公司 | Horizontal well reverse circulation jet flow screw drill |
| CN106194112B (en) * | 2016-09-08 | 2019-01-11 | 中国海洋石油集团有限公司 | A kind of oil well pipe cleaning sand washing integrated apparatus and pipe cleaning sand washing method |
| CN106194112A (en) * | 2016-09-08 | 2016-12-07 | 中国海洋石油总公司 | A kind of oil well pipe cleaning sand washing integrated apparatus and pipe cleaning sand washing method |
| CN106368630A (en) * | 2016-10-10 | 2017-02-01 | 中国石油化工股份有限公司 | Method and special tool for sand flushing |
| CN106368630B (en) * | 2016-10-10 | 2019-03-22 | 中国石油化工股份有限公司 | A kind of sand washing method and specific purpose tool |
| CN110578489A (en) * | 2019-08-14 | 2019-12-17 | 中国石油化工股份有限公司 | sand washing and blockage removing pipe column |
| CN110578489B (en) * | 2019-08-14 | 2021-09-17 | 中国石油化工股份有限公司 | Sand washing and blockage removing pipe column |
| CN114458210B (en) * | 2020-10-22 | 2024-08-13 | 中国石油化工股份有限公司 | Jet flow blocking removal and negative pressure flowback integrated process pipe column and use method thereof |
| CN114458210A (en) * | 2020-10-22 | 2022-05-10 | 中国石油化工股份有限公司 | Jet flow blockage removal and negative pressure flowback integrated process pipe column and using method |
| CN112459735A (en) * | 2020-11-02 | 2021-03-09 | 中海油田服务股份有限公司 | Rotational flow sand washing process pipe column |
| CN116181256A (en) * | 2021-11-26 | 2023-05-30 | 中国石油天然气股份有限公司 | Sand flushing well flushing pipe column suitable for secondary sand prevention horizontal well |
| CN115387751A (en) * | 2022-08-29 | 2022-11-25 | 西南石油大学 | Underground reverse rotational flow opposite-flushing cavitation device |
| CN115653543A (en) * | 2022-10-27 | 2023-01-31 | 中国石油天然气集团有限公司 | Oil well sand washing and well washing conversion device, oil well sand washing and well washing system and method |
| CN115992658A (en) * | 2023-03-22 | 2023-04-21 | 山东成林石油工程技术有限公司 | Multi-pass jet flow blocking removal oil extraction device and use method |
| CN115992658B (en) * | 2023-03-22 | 2023-05-16 | 山东成林石油工程技术有限公司 | Multi-pass jet flow blocking removal oil extraction device and use method |
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