CN202731793U - Sand wash blockage removing tool in casing pipe - Google Patents
Sand wash blockage removing tool in casing pipe Download PDFInfo
- Publication number
- CN202731793U CN202731793U CN 201220265114 CN201220265114U CN202731793U CN 202731793 U CN202731793 U CN 202731793U CN 201220265114 CN201220265114 CN 201220265114 CN 201220265114 U CN201220265114 U CN 201220265114U CN 202731793 U CN202731793 U CN 202731793U
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- rotation
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- rotating shaft
- sand
- sand wash
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Abstract
The utility model provides a sand wash blockage removing tool in a casing pipe. The sand wash blockage removing tool in the casing pipe is used for sand wash in oil field well repair underground casing pipes, and is characterized in that lower end threads of an upper joint are connected with a cylindrical connector, a rotating shaft is sleeved in the connector, an annular protruded portion is arranged in the middle of the rotating shaft, the upper end of the rotating shaft is arranged in a center hole of the upper joint, an upper bearing is arranged on an upper plane of the annular protruded portion of the rotating shaft, and a lower bearing is arranged on a lower plane of the annular protruded portion of the rotating shaft. A transverse steel wire brush is fixed on the outer wall of the lower end of the rotating shaft. Outer threads are arranged on the lower end of the rotating shaft and the lower end threads of the rotating shaft are connected with a cylindrical rotating jet flow nozzle, and three-to-six inclined spray holes and one downward center spray hole are arranged in the lower end of the rotating jet flow nozzle. The sand wash blockage removing tool in the casing pipe has the advantages of being capable of achieving sand wash and blockage removal including large oblique and horizontal well sections efficiently and quickly, reducing times of upward lifting and downward release of blockage removal and sand wash on a shaft in a pipe, shortening construction periods and achieving blockage removal in the shaft well.
Description
Technical field
The utility model relates to the oil well technical field, and particularly the special tool of a kind of well workover down-hole is the sand-removing unblocking tool in a kind of sleeve pipe.
Background technology
At present, in large gradient, when the net horizontal section Oil/gas Well carries out workover treatment, affected by well track and borehole diameter, the fouls such as foulant and sand setting very easily stop up pit shaft in the pit shaft, affect Oil/gas Well and normally produce.The blank tubing that adopts adds nib or rotary nozzle can not the effective cleaning borehole wall, needs repeatedly repeatedly flushing manhole section.Exist pit shaft to clean unclean, the problem such as scouring capability is not strong.
The utility model content
The purpose of this utility model is: the sand-removing unblocking tool in a kind of sleeve pipe is provided, rotating jet sand washing and borehole wall cleaning is combined on working string, can be in the loose large gradient of rotating jet primary drying, horizontal segment obstruction, by wire brush the borehole wall is cleaned, reduce the number of times of underground reciprocating cleaning, and can better clean the borehole wall.
The technical solution adopted in the utility model is: the sand-removing unblocking tool in the sleeve pipe, comprise top connection, connector, upper bearing (metal), axis of rotation, lower bearing, wire brush and rotary jet nozzle, and there is the drilling tool internal thread upper end of top connection, can be connected with centralising device for drilling tool.It is characterized in that: there is external screw thread the lower end of top connection, the lower end screw thread of top connection is connected with a columnar connector, in the connector inner sleeve axis of rotation is arranged, axis of rotation is that cylindrical has centre bore, there are annular portions at the middle part of axis of rotation, and the axis of rotation upper end is in the top connection centre bore, and there is upper bearing (metal) on the upper plane of axis of rotation annular portions, the lower plane of axis of rotation annular portions has lower bearing, and connector lower end centre bore is passed in the lower end of axis of rotation; Axis of rotation can rotate.Outer wall is fixed with horizontal wire brush in the lower end of axis of rotation; There is external screw thread the lower end of axis of rotation, is connected with a tubular rotary jet nozzle at the lower end of axis of rotation screw thread, and there are 3～6 oblique spray orifices and a downward center of orifices in the lower end of rotary jet nozzle.
The gradient of the center line of described oblique spray orifice is between 20～45 degree.
Sand-removing unblocking tool principle in the summary sleeve pipe.Sand-removing unblocking tool in the sleeve pipe is connected to the bottom of tubing string, and under the sand cleaning fluid positive recurrent state, rotary jet nozzle rotates under hydraulic action.Rotary jet nozzle ejection water jet begins foul in the broken well, clean pit shaft, the wire brush on the rotation driven rotary axle of rotary jet nozzle rotates, and wire brush cleans the borehole wall and finishes for the second time pit shaft cleaning purpose, thereby reach efficient sand removal de-plugging, remove in the well and stop up.
The beneficial effects of the utility model: the sand-removing unblocking tool in the utility model sleeve pipe, on the axis of rotation that rotary jet nozzle connects, increase the wire brush of the repeated washing borehole wall, can finish efficiently, fast the sand-removing unblocking that comprises large gradient, Horizontal Well section.Can reduce to put in the pit shaft de-plugging sand washing in the pipe and put number of times, shortening construction period, better finish the de-plugging cleaning in the pit shaft.
Description of drawings
Fig. 1 is the sand-removing unblocking tool structural profile schematic diagram in the utility model sleeve pipe.
Among the figure, 1-top connection, 2-connector, 3-upper bearing (metal), 4-axis of rotation, 5-lower bearing, 6-sealing ring, 7-wire brush, 8-rotary jet nozzle, the oblique spray orifice of 9-.
The specific embodiment
Embodiment 1: the sand-removing unblocking tool in the sleeve pipe is described in further detail the utility model as example.
Consult Fig. 1.Sand-removing unblocking tool in the utility model sleeve pipe comprises top connection 1, connector 2, upper bearing (metal) 3, axis of rotation 4, lower bearing 5, wire brush 7 and rotary jet nozzle 8.The external diameter of top connection 1, connector 2 and rotary jet nozzle 8 is 100mm.There is API standard rig internal thread the upper end of top connection 1.
There is external screw thread the lower end of top connection 1, the lower end screw thread of top connection 1 is connected with a columnar connector 2, in connector 2 inner sleeves an axis of rotation 4 is arranged, axis of rotation 4 has centre bore for cylindrical, there are annular portions at the middle part of axis of rotation 4, and axis of rotation 4 upper ends are in top connection 1 centre bore, and there is upper bearing (metal) 3 on the upper plane of axis of rotation 4 annular portions, the lower plane of axis of rotation 4 annular portions has lower bearing 5, and connector 2 lower end centre bores are passed in the lower end of axis of rotation 4; Axis of rotation 4 can rotate.Outer wall is fixed with horizontal wire brush 7 in the lower end of axis of rotation 4; There is external screw thread the lower end of axis of rotation 4, is connected with a tubular rotary jet nozzle 8 at the lower end of axis of rotation 4 screw thread, and the lower end of rotary jet nozzle 8 is taper seat shape.There are 3 oblique spray orifices 9 and a downward center of orifices in the lower end of rotary jet nozzle 8.The gradient of the center line of described oblique spray orifice 9 is 45 degree.Between connector 2 and axis of rotation 4 outer walls, two seals circle 6 is arranged.
Claims (2)
1. the sand-removing unblocking tool in the sleeve pipe, comprise top connection (1), connector (2), upper bearing (metal) (3), axis of rotation (4), lower bearing (5), wire brush (7) and rotary jet nozzle (8), there is the drilling tool internal thread upper end of top connection (1), it is characterized in that: there is external screw thread the lower end of top connection (1), the lower end screw thread of top connection (1) is connected with a columnar connector (2), in connector (2) inner sleeve an axis of rotation (4) is arranged, axis of rotation (4) has centre bore for cylindrical, there are annular portions at the middle part of axis of rotation (4), axis of rotation (4) upper end is in top connection (1) centre bore, there is upper bearing (metal) (3) on the upper plane of axis of rotation (4) annular portions, the lower plane of axis of rotation (4) annular portions has lower bearing (5), and connector (2) lower end centre bore is passed in the lower end of axis of rotation (4); Lower end outer wall at axis of rotation (4) is fixed with horizontal wire brush (7); There is external screw thread the lower end of axis of rotation (4), lower end screw thread at axis of rotation (4) is connected with a tubular rotary jet nozzle (8), and there are 3～6 oblique spray orifices (9) and a downward center of orifices in the lower end of rotary jet nozzle (8).
2. the sand-removing unblocking tool in the sleeve pipe according to claim 1, it is characterized in that: the gradient of the center line of described oblique spray orifice (9) is between 20～45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265114 CN202731793U (en) | 2012-06-06 | 2012-06-06 | Sand wash blockage removing tool in casing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265114 CN202731793U (en) | 2012-06-06 | 2012-06-06 | Sand wash blockage removing tool in casing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731793U true CN202731793U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220265114 Expired - Fee Related CN202731793U (en) | 2012-06-06 | 2012-06-06 | Sand wash blockage removing tool in casing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731793U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675347A (en) * | 2015-02-15 | 2015-06-03 | 中国石油集团西部钻探工程有限公司 | Hydraulic sand cleaning-out device for borehole operation |
| CN104863532A (en) * | 2015-04-17 | 2015-08-26 | 西安石油大学 | Double-stage hydraulic power rotation jet flow blockage cleaning device |
| CN106593386A (en) * | 2016-12-15 | 2017-04-26 | 中国石油天然气股份有限公司 | Plug removal device and plug removal process pipe column |
| CN106988700A (en) * | 2017-04-11 | 2017-07-28 | 西南石油大学 | A kind of high frequency week pendulum releasing tool |
| CN109630716A (en) * | 2018-12-11 | 2019-04-16 | 中国石油天然气集团有限公司 | A kind of high-pressure water jet short-circuit device |
| CN114427383A (en) * | 2020-09-28 | 2022-05-03 | 中国石油化工股份有限公司 | Oil pipe plug removal tool |
-
2012
- 2012-06-06 CN CN 201220265114 patent/CN202731793U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675347A (en) * | 2015-02-15 | 2015-06-03 | 中国石油集团西部钻探工程有限公司 | Hydraulic sand cleaning-out device for borehole operation |
| CN104863532A (en) * | 2015-04-17 | 2015-08-26 | 西安石油大学 | Double-stage hydraulic power rotation jet flow blockage cleaning device |
| CN104863532B (en) * | 2015-04-17 | 2017-07-07 | 西安石油大学 | A kind of twin-stage waterpower driven rotary jet Cleaning device for pipeline |
| CN106593386A (en) * | 2016-12-15 | 2017-04-26 | 中国石油天然气股份有限公司 | Plug removal device and plug removal process pipe column |
| CN106988700A (en) * | 2017-04-11 | 2017-07-28 | 西南石油大学 | A kind of high frequency week pendulum releasing tool |
| CN106988700B (en) * | 2017-04-11 | 2018-12-21 | 西南石油大学 | A kind of high frequency week pendulum releasing tool |
| CN109630716A (en) * | 2018-12-11 | 2019-04-16 | 中国石油天然气集团有限公司 | A kind of high-pressure water jet short-circuit device |
| CN114427383A (en) * | 2020-09-28 | 2022-05-03 | 中国石油化工股份有限公司 | Oil pipe plug removal tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20210606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |