CN202381009U - Hydraulic machinery inner cutter body cutting device - Google Patents
Hydraulic machinery inner cutter body cutting device Download PDFInfo
- Publication number
- CN202381009U CN202381009U CN201120476309XU CN201120476309U CN202381009U CN 202381009 U CN202381009 U CN 202381009U CN 201120476309X U CN201120476309X U CN 201120476309XU CN 201120476309 U CN201120476309 U CN 201120476309U CN 202381009 U CN202381009 U CN 202381009U
- Authority
- CN
- China
- Prior art keywords
- push rod
- cutter hub
- top connection
- cutting
- cutter body
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a hydraulic machinery inner cutter body cutting device, used for cutting downhole oil tubes with continuous tubes in oilfield downhole operations. An upper screw thread of a main body is connected with a lower end of an upper joint; a piston cylinder is arranged on a lower portion of the upper joint and in the main body, a push rod is arranged in the piston cylinder; a lower end of the push rod passes through a centre hole in the middle of the main body, a middle portion of the push rod is sleeved with a helical spring; an outer wall of the lower end of the push rod is provided with an annular groove; a cutter body is connected by a transverse pin in a rectangular hole on a wall of the main body; top of the cutter body is a circular arc, a circular arc inner end portion is in the annular groove of the push rod; the lower end of the cutter body is provided with a transverse cutting edge which heaves outwards; an inner wall of the cutter body is provided with a tapered plane, the lower end of the push rod is connected with the upper end of the tapered plane of the cutter body 10. Effects are as follows: for oilfield downhole cutting operations, technical flows are simple and structures are compact; cutting is realized by differential pressure of fluid so as to avoid adverse effect for environment and realize controllability and effectiveness for operations.
Description
Technical field
When the utility model relates to oilfield downhole operation, utilize continuously a kind of device that pipe is discarded with the down-hole or the obstruction oil pipe cuts, particularly cutter hub in the connecting pipes waterpower formula machinery is a cutter hub cutter sweep in a kind of waterpower formula machinery.
Background technology
Down-hole, oil field cutting oil pipe has a lot of cutting methods, but owing to manage the particularity of operation continuously, existing cutting tool has certain limitation to continuous pipe operation.Therefore exploitation continuous pipe cutting tool and technology are very important.The existing conventional cutting technique mainly contains following several kinds: as: thermic lance cutting, diamond saw cutting, the cutting of shot-drilling cable, CUMULATIVE BLASTING cutting, the cutting of mechanical cutter hub down-hole and abradant jet cutting.In the above-mentioned cutting technique; The not operability of thermic lance cutting when utilizing pipe operation continuously; The costliness property of diamond saw and the cutting of shot-drilling cable and the complexity and the unreliability of cutting under water; The environment pollution and the limitation of CUMULATIVE BLASTING cutting, the uncontrollability of abradant jet cutting speed all cause they under pipe well continuously operation can not realization property.Therefore, Comparatively speaking, waterpower formula machinery cutter hub down-hole cutting technique has feasibility and operability.
The cutting of so-called mechanical cutter hub down-hole is that just mechanical cutter hub is lowered into down-hole cutting, mainly is to rely on the rotating disk on the turntable to drive the mechanical type cutter hub rotation in the pipe, thereby along circumferentially pipe fitting being cut.This technology than higher, and for the multilayer tubing string, is filled with the situation of cement sheath for the cutting benefit of individual layer tubing string in especially multilayer tubing string decentraction, and the multilayer pipe band of column shape space, its cutting benefit is very low, and very easily produces mechanical breakdown.
The utility model content
The purpose of the utility model is: cutter hub cutter sweep in a kind of waterpower formula machinery is provided, utilizes coiled tubing to carry out the oil pipe cutting operation, utilize the pressure differential of fluid to realize cutting operation, avoid the pollution to subsurface environment.
The technical scheme that the utility model adopts is: cutter hub cutter sweep in the waterpower formula machinery, mainly form by top connection, water nozzle, body, helical spring, push rod, tool rest, bearing pin and cutter hub; It is characterized in that: the top connection cylinder bodily form has centre bore, and there is internal thread the upper end of top connection, can be connected the lower end of continuous pipe; Lower end one external screw thread of top connection, the upper end of body is threaded in the lower end of top connection, sealing ring on having between top connection and the body; In body and in the bottom of top connection, a piston rod is arranged, a push rod is arranged in the piston rod, push rod for the cylinder bodily form has centre bore, there is the piston of annular the upper end of push rod, between piston outer wall and piston rod inwall, lower seal is arranged; Be embedded with a water nozzle in the upper end of piston, water nozzle is an annular; The centre bore at body middle part is passed in the push rod lower end, is with a helical spring at the middle part of push rod; Push rod lower end outer wall has an annular groove; On the wall of body, have axial slot, be welded with a tool rest in the upper end of slot; The lower surface of tool rest is a circular arc; In the body slot, connect cutter hub through horizontal bearing pin; The top of cutter hub is a circular arc, and the inner end of circular arc is in the annular groove of push rod; The lower end of cutter hub has laterally and to the blade of outer lug; The inwall of cutter hub has a tapered plane, the tapered plane upper end of the cutter hub of the lower end of push rod.Push rod is to lower slider, and the lower end of push rod can promote cutter hub and outwards rotate, and the blade of cutter hub is pushed out the slot of body.
On the wall of body, have three axial slots, connect a cutter hub in each axial slot respectively; Angle between the axial slot center line of three bodies is 120 degree.
The operating principle of cutter hub cutter sweep in the summary waterpower formula machinery.Consult Fig. 1.The pipe upper end connects power motor continuously, manages the top connection 1 that the lower end connects this device continuously; Utilize fluid to carry out work through the pressure differential of the piston center hole generation of push rod 7 upper ends; The pressure of push rod 7 upper end pistons surpasses helical spring 6 thrusts; Push rod 7 moves downward; The ring-shaped step of push rod 7 outer walls promotes cutter hub 10 and ejects, and top connection 1 rotation is managed and driven in rotation continuously, and 10 pairs of inboard wall of tube body of cutter hub cut.
The beneficial effect of the utility model: cutter hub cutter sweep in the utility model waterpower formula machinery, it is simple to have a technological process for down-hole, oil field cutting operation, compact conformation; Realize the cutting purpose by the pressure reduction of fluid, avoided adverse effect, realized the controllability and the validity of operation environment.
Description of drawings
Fig. 1 is a cutter hub cutter sweep structural profile sketch map in the utility model waterpower formula machinery.
Among the figure, 1-top connection, the last sealing ring of 2-, 3-lower seal, 4-water nozzle, 5-body, 6-helical spring, 7-push rod, 8-tool rest, 9-bearing pin, 10-cutter hub.
The specific embodiment
Embodiment 1: with cutter hub cutter sweep in the waterpower formula machinery is example, and the utility model is done further explain.
Consult Fig. 1.Cutter hub cutter sweep in the utility model waterpower formula machinery mainly is made up of top connection 1, water nozzle 4, body 5, helical spring 6, push rod 7, tool rest 8, bearing pin 9 and cutter hub 10.
The top connection 1 cylinder bodily form has centre bore, and there is the drilling tool internal thread upper end of top connection 1; Lower end one external screw thread of top connection 1, the upper end of body 5 is threaded in the lower end of top connection 1, and on having between top connection 1 and the body 5 sealing ring 2.In body 5 and in the bottom of top connection 1, a piston rod is arranged, a push rod 7 is arranged in the piston rod, push rod 7 for the cylinder bodily form has centre bore, there is the piston of annular the upper end of push rod 7, between piston outer wall and piston rod inwall, lower seal 3 is arranged.Be embedded with a water nozzle 4 in the upper end of piston.Water nozzle 4 is for annular has centre bore, and water nozzle 4 centre bores are 4mm.The centre bore at body 5 middle parts is passed in push rod 7 lower ends, is with a compression helical spring 6 at the middle part of push rod 7.The upper end of compression helical spring 6 is against on the lower surface of piston.Push rod 7 lower end outer walls have an annular groove; On the wall of body 5, have three axial slots, the angle between the axial slot center line of three bodies 5 is 120 degree.Be welded with a tool rest 8 in the upper end of each slot; The lower surface of tool rest 8 is a circular arc.In body 5 slots, connect cutter hub 10 through a horizontal bearing pin 9; The top of cutter hub 10 is a circular arc, and the inner end of circular arc is in the annular groove of push rod 7.The lower end of cutter hub 10 has laterally and to the blade of outer lug.The inwall of cutter hub 10 has the tapered plane of one 45 degree, the tapered plane upper end of the cutter hub 10 of the lower end of push rod 7.Push rod 7 is to lower slider, and the lower end of push rod 7 can promote cutter hub 10 and outwards rotate, and the blade of cutter hub 10 is pushed out the slot of body 5.
Claims (2)
1. the interior cutter hub cutter sweep of waterpower formula machinery mainly is made up of top connection (1), water nozzle (4), body (5), helical spring (6), push rod (7), tool rest (8), bearing pin (9) and cutter hub (10); It is characterized in that: top connection (1) the cylinder bodily form has centre bore, and there is internal thread the upper end of top connection (1); Lower end one external screw thread of top connection (1), the upper end of body (5) is threaded in the lower end of top connection (1), between top connection (1) and body (5), last sealing ring (2) is arranged; In body (5) and in the bottom of top connection (1), a piston rod is arranged; A push rod (7) is arranged in the piston rod; Push rod (7) for the cylinder bodily form has centre bore, there is the piston of annular the upper end of push rod (7), and lower seal (3) is arranged between piston outer wall and piston rod inwall; Be embedded with a water nozzle (4) in the upper end of piston, water nozzle (4) is an annular; The centre bore at body (5) middle part is passed in push rod (7) lower end, is with a helical spring (6) at the middle part of push rod (7); Push rod (7) lower end outer wall has an annular groove; On the wall of body (5), have axial slot, be welded with a tool rest (8) in the upper end of slot; The lower surface of tool rest (8) is a circular arc; In body (5) slot, connect cutter hub (10) through horizontal bearing pin (9); The top of cutter hub (10) is a circular arc, and the inner end of circular arc is in the annular groove of push rod (7); The lower end of cutter hub (10) has laterally and to the blade of outer lug; The inwall of cutter hub (10) has a tapered plane, the tapered plane upper end of the cutter hub (10) of the lower end of push rod (7).
2. cutter hub cutter sweep in the waterpower formula machinery according to claim 1 is characterized in that: on the wall of body (5), have three axial slots, connect a cutter hub (10) in each axial slot respectively; Angle between the axial slot center line of three bodies (5) is 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120476309XU CN202381009U (en) | 2011-11-25 | 2011-11-25 | Hydraulic machinery inner cutter body cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120476309XU CN202381009U (en) | 2011-11-25 | 2011-11-25 | Hydraulic machinery inner cutter body cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381009U true CN202381009U (en) | 2012-08-15 |
Family
ID=46629522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120476309XU Expired - Fee Related CN202381009U (en) | 2011-11-25 | 2011-11-25 | Hydraulic machinery inner cutter body cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381009U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828715A (en) * | 2012-09-03 | 2012-12-19 | 中国海洋石油总公司 | Hydraulic cutting knife component with centralizing structure of mechanical cutting knife |
| CN103089181A (en) * | 2013-01-14 | 2013-05-08 | 中国石油大学(华东) | Hydraulic cutter in pipe |
| CN104453762A (en) * | 2015-01-07 | 2015-03-25 | 长江大学 | Pressure relief type deepwater casing pipe interior cutting device |
| CN104526733A (en) * | 2014-12-15 | 2015-04-22 | 黄成博 | Pipe cutter |
| CN105134118A (en) * | 2015-07-22 | 2015-12-09 | 中国石油化工股份有限公司 | Cutting method for coiled tubing cutting tool string |
| CN106108789A (en) * | 2016-01-25 | 2016-11-16 | 湖北泽森智能科技有限公司 | The wool cutter of middle sweeping device |
| CN107387011A (en) * | 2017-08-02 | 2017-11-24 | 西南石油大学 | Waterpower promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe |
| CN109653697A (en) * | 2017-10-11 | 2019-04-19 | 中国石油化工股份有限公司 | Oil pipe hydraulic cuts fishing tool |
| CN111058787A (en) * | 2019-11-20 | 2020-04-24 | 中国海洋石油集团有限公司 | Positioning hydraulic internal cutting knife and oil pipe cutting method |
| CN111305781A (en) * | 2020-04-15 | 2020-06-19 | 重庆地质矿产研究院 | Displacement device for oil field underground hydraulic joint cutting |
| CN115711099A (en) * | 2021-08-23 | 2023-02-24 | 中国石油天然气集团有限公司 | Vertical feed type hydraulic oil pipe internal cutting knife |
| US11993995B2 (en) | 2022-08-30 | 2024-05-28 | Saudi Arabian Oil Company | Tubular cutting and fishing tool |
-
2011
- 2011-11-25 CN CN201120476309XU patent/CN202381009U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828715A (en) * | 2012-09-03 | 2012-12-19 | 中国海洋石油总公司 | Hydraulic cutting knife component with centralizing structure of mechanical cutting knife |
| CN103089181A (en) * | 2013-01-14 | 2013-05-08 | 中国石油大学(华东) | Hydraulic cutter in pipe |
| CN103089181B (en) * | 2013-01-14 | 2015-09-09 | 中国石油大学(华东) | Hydraulic cutter in pipe |
| CN104526733A (en) * | 2014-12-15 | 2015-04-22 | 黄成博 | Pipe cutter |
| CN104526733B (en) * | 2014-12-15 | 2016-07-20 | 黄成博 | A kind of casing knife |
| CN104453762A (en) * | 2015-01-07 | 2015-03-25 | 长江大学 | Pressure relief type deepwater casing pipe interior cutting device |
| CN105134118A (en) * | 2015-07-22 | 2015-12-09 | 中国石油化工股份有限公司 | Cutting method for coiled tubing cutting tool string |
| CN106108789A (en) * | 2016-01-25 | 2016-11-16 | 湖北泽森智能科技有限公司 | The wool cutter of middle sweeping device |
| CN107387011A (en) * | 2017-08-02 | 2017-11-24 | 西南石油大学 | Waterpower promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe |
| CN109653697A (en) * | 2017-10-11 | 2019-04-19 | 中国石油化工股份有限公司 | Oil pipe hydraulic cuts fishing tool |
| CN111058787A (en) * | 2019-11-20 | 2020-04-24 | 中国海洋石油集团有限公司 | Positioning hydraulic internal cutting knife and oil pipe cutting method |
| CN111058787B (en) * | 2019-11-20 | 2022-07-15 | 中国海洋石油集团有限公司 | Positioning hydraulic internal cutting knife and oil pipe cutting method |
| CN111305781A (en) * | 2020-04-15 | 2020-06-19 | 重庆地质矿产研究院 | Displacement device for oil field underground hydraulic joint cutting |
| CN111305781B (en) * | 2020-04-15 | 2022-03-29 | 重庆地质矿产研究院 | Displacement device for oil field underground hydraulic joint cutting |
| CN115711099A (en) * | 2021-08-23 | 2023-02-24 | 中国石油天然气集团有限公司 | Vertical feed type hydraulic oil pipe internal cutting knife |
| US11993995B2 (en) | 2022-08-30 | 2024-05-28 | Saudi Arabian Oil Company | Tubular cutting and fishing tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202381009U (en) | Hydraulic machinery inner cutter body cutting device | |
| CN104405287B (en) | A kind of drilling well dipulse hydroscillator | |
| CN204139968U (en) | A kind of drilling well dipulse hydroscillator | |
| CN203905824U (en) | Rotary self-propelled type multi-hole jet drill bit for radial side tracking | |
| CN107191150A (en) | The reducing hydraulic cutter for realizing cutting different-diameter sleeve pipe is driven using multi-head spiral | |
| CN104632112A (en) | Through-type downhole hammer reverse circulation drilling structure | |
| CN102704879A (en) | Abrasive jet processing tool for downhole accidents | |
| CN202325239U (en) | Hydraulic jetting radial drilling device | |
| Zhao et al. | Well completion technology using screen pipe for horizontally-intersected well in soft coal seam | |
| CN102747977A (en) | Internal cutting device of hydraulic sleeve | |
| CN107448156B (en) | Full-drift diameter sleeve guide shoe | |
| CN103775001A (en) | Flexible drilling rod for radial horizontal well drilling | |
| CN202745782U (en) | Internal cutting device of hydraulic sleeve | |
| CN105672884A (en) | Well-drilling tool and well-drilling method thereof | |
| CN201544128U (en) | Hydraulic sand-blasting cutter | |
| CN202064912U (en) | Uniformly-rotating blockage removing tool for horizontal well | |
| CN201401143Y (en) | Pulse cavitation swirl generator | |
| CN108222875B (en) | Pressure pulse waveform indication type deep water hydraulic cutting device | |
| CN107816326B (en) | Double-wall reverse circulation drilling tool | |
| CN203129955U (en) | Broaching jumbolter | |
| CN202023504U (en) | Rotary eccentric casing drilling device | |
| CN211038584U (en) | Downhole hydraulic borehole repairing and cleaning tool for well drilling | |
| CN204571896U (en) | A kind of pressure-bearing cutting tubular column unit | |
| CN201517381U (en) | Hydraulic rotary tool | |
| CN105672883A (en) | Speed-increasing tool and speed-increasing method used for well drilling |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20201125 |