CN205445462U - Hydraulic hits broken rock device of marching type that shakes - Google Patents
Hydraulic hits broken rock device of marching type that shakes Download PDFInfo
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- CN205445462U CN205445462U CN201521111942.3U CN201521111942U CN205445462U CN 205445462 U CN205445462 U CN 205445462U CN 201521111942 U CN201521111942 U CN 201521111942U CN 205445462 U CN205445462 U CN 205445462U
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- shell body
- positive displacement
- displacement motor
- central shaft
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Abstract
The utility model provides a hydraulic hits broken rock device of marching type that shakes, including shell body and positive displacement motor, the transmission shaft, the one -level connects, be equipped with hollow center pin on shell body upper portion, set up the spring between shell body and the center pin, through the integral key shaft to the cooperation of pegging graft between outer shells inner wall and the center pin outer wall, the positive displacement motor is installed inside the shell body of center pin below, predetermine the vibration chamber between positive displacement motor and the center pin axial, the upper end of positive displacement motor is spacing through the poppet valve that links firmly with the shell body, lower tip at the shell body is equipped with the second grade joint. The device hits hydraulic that shake and the broken rock of marching type combines two kinds of well drillings speed -raising technologies organically together, can further improve the well drilling speed of deep well, ultradeep well, reduces drilling tool combination transverse vibration simultaneously, the protection drill bit, stabilizes the weight on bit, prevents the emergence of down -hole troublesome condition to shorten drilling period, reduce well drilling comprehensive cost.
Description
Technical field
This utility model relates to oil and gas well drilling, the drilling tool in CBM Drilling field, and especially a kind of fluid power hits step-by-step movement of shaking and breaks rock device.
Background technology
Deep-well, ultradeep well are the technical ways developing Hydrocarbon Resource of The Deep Formation both at home and abroad, but the increase along with well depth, rock is the finest and close hard, conventional bit and drilling mode efficiency of breaking rock are the lowest, causing drilling period to extend, the deep drilling cycle in China western part, up to 1 year even 2 years, adds the production cost per tone oil after exploitation, it is difficult to meet the requirement of petroleum resources Efficient Development, therefore in the urgent need to well drilling and rock crushing technology more quickly and effectively.Theoretical research shows with engineering practice, small bits has the efficiency of breaking rock advantage higher than large scale drill bit, when small bits first completes when creeping into of certain depth well, recycling large scale drill bit creeps into, form notch cuttype well, now it is released due to the part internal stress of large scale drill bit institute rock drilling, reduce the difficulty of large scale drill bit institute rock drilling body, the rate of penetration of design well can be greatly improved, i.e. utilize step-by-step movement to break rock principle and improve drilling speed, axial impact effect is also beneficial to improve the percentage of damage of solid rock simultaneously, if two kinds of techniques can be organically combined, deep-well will be greatly improved, the bit speed of ultradeep well, but carry out independent studies only for a kind of technique therein the most both at home and abroad, speed-increasing effect is limited, and the Research Literature about two kinds of Fuzzy Optimizations and relevant apparatus yet there are no.
Utility model content
The purpose of this utility model is the problem existed for prior art, provides a kind of simple in construction, dependable performance for oil and gas well drilling, CBM Drilling, geological prospecting, mine probing, and control accuracy is high, and easy to operate fluid power hits step-by-step movement of shaking and breaks rock device.
This utility model solves its technical problem and be the technical scheme is that
Fluid power hits step-by-step movement of shaking and breaks rock device, including shell body 2 and positive displacement motor 11, power transmission shaft 14, one-level joint 16, by-pass prot 13 is processed on power transmission shaft 14, wherein: be provided with the central shaft 1 of hollow on shell body 2 top, between shell body 2 inwall and central shaft 1 outer wall, spring cavity is set, spring 4 is set in spring cavity, coordinated by the axial grafting of spline 6 between shell body 2 inwall with central shaft 1 outer wall, shell body 2 coordinates with central shaft 1 peripheral sealing, it is internal that positive displacement motor 11 is arranged on the shell body 2 below central shaft 1, positive displacement motor 11 and central shaft 1 axially between preset vibration chamber, the upper end of positive displacement motor 11 is by spacing with the moushroom valve 10 that shell body 2 is connected, it is provided with secondary joint 17 in the bottom of shell body 2.
Such scheme farther includes:
Positive displacement motor 11 is connected with power transmission shaft 14 by shaft coupling 12, installs bearing 15 between power transmission shaft 14 and shell body 2, and central shaft 1 upper end is provided with union joint.
Moushroom valve 10 is connected with shell body 2 by fixing rib 9, installs multi-stage sealed device between central shaft 1 and shell body 2
Vibration chamber 8 is one or more groups series connection.
Described spline 6 and the internal full lubricating oil of spring cavity 4.
Fluid power of the present utility model hits step-by-step movement of shaking and breaks rock device and step-by-step movement is broken rock and axial impact efficient rock-breaking two kinds raise speed Fuzzy Optimization, and deep-well, the bit speed of ultradeep well and the development benefit of Hydrocarbon Resource of The Deep Formation are greatly improved；Improve the bit speed of deep-well, ultradeep well further, give full play to step-by-step movement and break rock and the technical advantage of two kinds of techniques of rock fracture in dynamic indentation, meet and reduce drilling well integrated cost, the requirement of Efficient Development Deep Oil And Gas Exploration resource；Have that structure design is simple, dependable performance, the feature such as easy to operate.
According to effect of field application analysis, fluid power hits step-by-step movement of shaking and breaks rock device and averagely can save drilling period 15-20 days by individual well, drilling efficiency improve 68.6%, and drilling quality meet design standard, it is achieved that low energy consumption, high efficiency drilling well purpose.
Accompanying drawing explanation
Fig. 1 is based on the fluid power that this utility model proposed and hits step-by-step movement of shaking and break rock apparatus structure schematic diagram.
Fig. 2 is based on the fluid power that this utility model proposed and hits step-by-step movement of shaking and break rock device Section A-A schematic diagram.
1-central shaft in figure, 2-shell body, 3-primary seal device, 4-spring assembly, 5-two stage sealing device, 6-spline, 7-three-stage sealing device, 8-vibrate chamber, 9-fixing rib, 10-moushroom valve, 11-positive displacement motor, 12-shaft coupling, 13-by-pass prot, 14-power transmission shaft, 15-bearing, 16-one-level joint, 17-secondary joint.
Detailed description of the invention
Describe this utility model below in conjunction with the accompanying drawings in detail.
Exemplary embodiments
Such as Fig. 1, central shaft 1 is arranged on the top of shell body 2, and spring assembly 4 is installed between shell body 2, central shaft 1 is connected with shell body 2 by spline device 6, primary seal device 3 it is respectively mounted between central shaft 1 and shell body 2, two stage sealing device 5, three-stage sealing device 7, processing vibration chamber 8 on the middle part inwall of shell body 2, positive displacement motor 11 is arranged on the bottom of shell body 2, moushroom valve 10 is installed in the upper end of positive displacement motor 11, moushroom valve 10 is connected with shell body 2 by fixing rib 9, positive displacement motor 11 is connected with power transmission shaft 14 by shaft coupling 12, by-pass prot 13 is processed on power transmission shaft 14, bearing 15 is installed between power transmission shaft 14 and shell body 2, power transmission shaft 14 bottom processing one-level joint 16, shell body bottom processing secondary joint 17.
When device of the present utility model is applied to wellbore construction, small bits connects one-level joint, large scale drill bit connects secondary joint, owing to little bit size is little, well drilling and rock crushing efficiency is high, when small bits first completes when creeping into of certain depth well, recycling large scale drill bit creeps into, form notch cuttype well, now it is released due to the part internal stress of large scale drill bit institute rock drilling, thus reduce the difficulty of large scale drill bit institute rock drilling body, the rate of penetration of design well can be greatly improved, i.e. utilize step-by-step movement to break rock principle and improve drilling speed.Drilling fluid arrives positive displacement motor through central shaft, driving motor rotates, the driving torque of positive displacement motor drives drive axis through shaft coupling, and drive one-level joint to rotate, and then driving small bits to rotate broken rock, the moment of torsion that well head rotating disk rotates is transferred to central shaft through drilling rod, is rotated by spline device cover of driver body, drive secondary joint rotates, and then drives large scale bit to break rock.nullPositive displacement motor rotor drilling fluid effect issue be conigenous turn while also can produce revolution，Owing to moushroom valve is irregularly shaped，The area of passage formed with moushroom valve when positive displacement motor rotor is revolved round the sun constantly changes，Thus the change of drilling liquid flow dynamic pressure in causing tubing string，I.e. produce surge wave effect or surge pressure，Surge pressure is communicated up，After the modulation in vibration chamber is amplified，Act on shell body，And direction is upwards，Owing to installing spring assembly between shell body and central shaft，Shell body move upward while compression spring device，Surge pressure is put aside in spring assembly，And the lower end of central shaft can not enter vibration chamber，When surge pressure reduces，The restoring force cover of driver body of spring assembly moves downward，On large scale drill bit, not only produce soft impulse，Also pass through bearing arrangement simultaneously on small bits, produce soft impulse，Continuous flowing along with drilling fluid，The continuous rotation of positive displacement motor rotor，Can periodically produce surge pressure，Said process is repeated cyclically，On drill bit, i.e. constantly produce soft impulse，Auxiliary improves drill bit efficiency of breaking rock.
Claims (5)
- null1. fluid power hits step-by-step movement of shaking and breaks rock device，Including shell body (2) and positive displacement motor (11)、Power transmission shaft (14)、One-level joint (16)，By-pass prot (13) is processed on power transmission shaft (14)，It is characterized in that: be provided with the central shaft (1) of hollow on shell body (2) top，Between shell body (2) inwall and central shaft (1) outer wall, spring cavity is set，Spring (4) is set in spring cavity，Coordinated by spline (6) axially grafting between shell body (2) inwall with central shaft (1) outer wall，Shell body (2) coordinates with central shaft (1) peripheral sealing，The shell body (2) that positive displacement motor (11) is arranged on central shaft (1) lower section is internal，Positive displacement motor (11) and central shaft (1) axially between preset vibration chamber，The upper end of positive displacement motor (11) is by spacing with the moushroom valve (10) that shell body (2) is connected，It is provided with secondary joint (17) in the bottom of shell body (2).
- Fluid power the most according to claim 1 hits step-by-step movement of shaking and breaks rock device, it is characterized in that: positive displacement motor (11) is connected with power transmission shaft (14) by shaft coupling (12), installing bearing (15) between power transmission shaft (14) and shell body (2), central shaft (1) upper end is provided with union joint.
- Fluid power the most according to claim 1 and 2 hits step-by-step movement of shaking and breaks rock device, it is characterized in that: moushroom valve (10) is connected with shell body (2) by fixing rib (9), the cross section of moushroom valve (10) is irregularly shaped, installs multi-stage sealed device between central shaft (1) and shell body (2).
- Fluid power the most according to claim 3 hits step-by-step movement of shaking and breaks rock device, it is characterized in that: vibration chamber (8) is one or more groups series connection.
- Fluid power the most according to claim 3 hits step-by-step movement of shaking and breaks rock device, it is characterized in that: described spline (6) and the internal full lubricating oil of spring cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111942.3U CN205445462U (en) | 2015-12-29 | 2015-12-29 | Hydraulic hits broken rock device of marching type that shakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111942.3U CN205445462U (en) | 2015-12-29 | 2015-12-29 | Hydraulic hits broken rock device of marching type that shakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205445462U true CN205445462U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521111942.3U Active CN205445462U (en) | 2015-12-29 | 2015-12-29 | Hydraulic hits broken rock device of marching type that shakes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930687A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | Fluid power hits the step-by-step movement broken rock device that shakes |
| CN108240175A (en) * | 2016-12-24 | 2018-07-03 | 中石化石油工程技术服务有限公司 | Constant pressure type rotates vibration screw motor |
| CN111608582A (en) * | 2020-05-19 | 2020-09-01 | 西南石油大学 | Reversing control system based on hydraulic drive |
-
2015
- 2015-12-29 CN CN201521111942.3U patent/CN205445462U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930687A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | Fluid power hits the step-by-step movement broken rock device that shakes |
| CN108240175A (en) * | 2016-12-24 | 2018-07-03 | 中石化石油工程技术服务有限公司 | Constant pressure type rotates vibration screw motor |
| CN108240175B (en) * | 2016-12-24 | 2024-05-03 | 中石化石油工程技术服务有限公司 | Constant-pressure rotary vibrating screw motor |
| CN111608582A (en) * | 2020-05-19 | 2020-09-01 | 西南石油大学 | Reversing control system based on hydraulic drive |
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