CN106639865A - Graded cutting device - Google Patents
Graded cutting device Download PDFInfo
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- CN106639865A CN106639865A CN201510717530.2A CN201510717530A CN106639865A CN 106639865 A CN106639865 A CN 106639865A CN 201510717530 A CN201510717530 A CN 201510717530A CN 106639865 A CN106639865 A CN 106639865A
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- transmission shaft
- driven gear
- stabilizer
- power transmission
- cutting device
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Abstract
The invention relates to a graded cutting device. The graded cutting device comprises an outer housing 1, a positive displacement motor 2, a shaft coupling 3 and a transmission shaft 4, and the positive displacement motor 2, the shaft coupling 3 and the transmission shaft 4 are arranged in the outer housing 1. The upper part of the transmission shaft 4 is provided with a by-pass port 5, the lower part of the transmission shaft 4 is provided with a first-grade joint 13, the lower part of the outer housing 1 extends to form a diameter-expanded stabilizer 10, the stabilizer 10 is provided with several driven gear cavities which are distributed uniformly in the circumferential direction from bottom to top in the axial direction, the interior of each driven gear cavity is provided with a driven gear 8, each driven gear 8 and the transmission shaft 4 are coaxial, the lower end of each driven gear 8 is provided with a second-grade joint 9, the exterior of the transmission shaft 4 is fixedly connected with a driving gear 7, and the driving gear 7 is in engaged rotating cooperation with the driven gears 8 which are distributed uniformly peripherally. Compared with a conventional rock breaking tool, the graded cutting device is advantaged in that under the condition of the same energy consumption and the same drilling period, more rocks can be cut, the drilling speed is faster, and the rock breaking efficiency is higher; and the graded cutting device is characterized by being simple in structural design, reliable in performance, convenient to operate and the like.
Description
Technical field
The present invention relates to oil and gas well drilling, CBM Drilling, geological prospecting, mine boring tool field, especially a kind of stagewise topping machanism.
Background technology
The reduction of drilling speed has become the technical bottleneck of restriction China deep-seated oil gas reservoir Efficient Development, and existing conventional rock-breaking and well-drilling technology can not meet the technological requirement for putting forward effect.PDC drill bit has the advantages that to be widely applied better than other drill bits, but big size hole drilling speed is slow, high abrasive stratum bit wear is serious, large scale or expensive, the low broken rock energy deficiency of bit central linear velocity of high-performance drill bit etc., it is also subject matter that PDC drill bit faces, New well drilling technology such as laser drill, drilling by use of heat, particle punching drilling etc. also do not reach the technical requirements of scene application.
The content of the invention
The purpose of invention needs precisely in order to solving prior art, proposes a kind of simple structure, high, the easy to operate stagewise topping machanism of dependable performance, control accuracy.
The technical solution adopted for the present invention to solve the technical problems is：
Stagewise topping machanism, including shell body 1 and positive displacement motor 2, shaft coupling 3, the power transmission shaft 4 being placed in shell body 1；The top of power transmission shaft 4 sets by-pass prot 5, bottom sets one-level joint 13, expanding stabilizer 10 is extended with the bottom of shell body 1, stabilizer 10 opens up axially upward the uniform driven gear chamber of several circumferences from bottom, arrange and the homoaxial driven gear 8 of power transmission shaft 4 in each driven gear chamber, the lower end of driven gear 8 sets secondary joint 9；Driving gear 7 is fixed with outside power transmission shaft 4；The driven gear 8 uniform with periphery of driving gear 7 constitutes ratcheting rotatable engagement.
Such scheme also includes：The bottom of power transmission shaft 4 sets horizontal nozzle 12, and horizontal nozzle 12 is located at the lower section of secondary joint 9；The outer surface of stabilizer 10 is intervally distributed with convex wing, and the outer surface of stabilizer 10 inlays anti-roll flute.
Such scheme is further included：Primary seal device 6 is installed between power transmission shaft 4 and the inwall of shell body 1, two stage sealing device 11 is installed between driven gear 8 and stabilizer 10, driven gear within the chamber is full of lubricating oil.
The advantage of stagewise topping machanism of the present invention is：Combine multigroup small bits, and drive each drilling bit high-speed rotary broken rock, the purpose that big size hole is drilled to using small bits is reached, bottom rock can be to greatest extent cut again, the technical advantage of PDC drill bit is given full play to, so as to obtain higher efficiency of breaking rock and rate of penetration, additionally it is possible to control hole quality, while also overcoming the deficiency of low efficiency of breaking rock difference of conventional large scale drill bit linear velocity high quick abrasion life-span.Stagewise topping machanism compared with conventional rock crushing tool, under conditions of same consumption energy and drilling period, can cut more rocks, i.e. rate of penetration faster, efficiency of breaking rock it is higher；And small bits large-size drill bit is cheap, and big size hole can be got out again, its economic benefit is very notable.Field practice is proved, average to improve drilling efficiency 56.7% using stagewise topping machanism drilling well, saves drilling period 5-8 days, and drilling quality meets design standard, realizes low energy consumption, efficient drilling well purpose.
Meanwhile, stagewise topping machanism also have structure design simple, dependable performance, it is easy to operate the features such as.
Description of the drawings
Fig. 1 is according to stagewise topping machanism structural representation proposed by the invention.
Fig. 2 is according to stagewise topping machanism Section A-A schematic diagram proposed by the invention.
In figure：1- shell bodies, 2- positive displacement motors, 3- shaft couplings, 4- power transmission shafts, 5- by-pass prots, 6- primary seal devices, 7- driving gears, 8- driven gears, 9- secondary joints, 10- stabilizers, 11- two stage sealing devices, the horizontal nozzles of 12-, 13- one-level joints.
Specific embodiment
Below in conjunction with the accompanying drawings describing the present invention in detail.
Such as Fig. 1, stagewise topping machanism is mainly made up of shell body 1, positive displacement motor 2, shaft coupling 3, power transmission shaft 4, driving gear 7, driven gear 8, one-level joint 13, secondary joint 9, stabilizer 10.Shaft coupling 3 is installed between positive displacement motor and power transmission shaft, the top of power transmission shaft 4 processes by-pass prot 5, the bottom cross machine nozzle 12 of power transmission shaft 4, the bottom of power transmission shaft 4 connection one-level joint 13, primary seal device 6 is installed, driving gear 7 is arranged on power transmission shaft 4 between power transmission shaft 4 and the inwall of shell body 1；Expanding stabilizer 10 is extended with the bottom of shell body 1, stabilizer 10 opens up axially upward the uniform driven gear chamber of several circumferences from bottom, arrange and the homoaxial driven gear 8 of power transmission shaft 4 in each driven gear chamber, the lower end of driven gear 8 sets secondary joint 9, and two stage sealing device 11 is installed between driven gear 8 and stabilizer 10.
As Fig. 2, the outer surface of stabilizer 10 are intervally distributed with convex wing, the outer surface of stabilizer 10 inlays anti-roll flute.
When the device of the present invention is applied to well drilling and rock crushing，One-level drill bit is connected with one-level joint，Two grades of drill bits are connected with secondary joint，Its quantity can be according to specific requirement design processing 2 or more than 2，Then ground rotating disk and hydraulic pump are started，After drilling fluid enters stagewise topping machanism，Drilling fluid drives positive displacement motor to start to rotate，Drive axis are driven by shaft coupling，And then drive one-level drill bit to rotate broken rock，Drilling fluid is after positive displacement motor，Jing by-pass prots are entered inside power transmission shaft，Then shaft bottom is reached through one-level drill bit，As power transmission shaft is continuously rotated，Moment of torsion is transferred to driven gear by driving gear，Drive driven gear rotation，Because two grades of drill bits are connected with driven gear，Therefore two grades of drill bits start to rotate broken rock，Horizontal nozzle of the part drilling fluid on power transmission shaft is projected，Clear rock and cooling are carried out to two grades of drill bits，The stabilizer of shell body bottom can either guarantee stability of the stagewise topping machanism in all drill bit rock break-off process are driven，Borehole size can be kept again to meet the requirements，The borehole wall can also be repaired.
Claims (3)
1. stagewise topping machanism, including shell body（1）Be placed in shell body（1）Interior positive displacement motor（2）, shaft coupling（3）, power transmission shaft（4）；Power transmission shaft（4）Top sets by-pass prot（5）, bottom sets one-level joint（13）, it is characterized in that also including：In shell body（1）Bottom is extended with expanding stabilizer（10）, stabilizer（10）The uniform driven gear chamber of several circumferences is opened up axially upward from bottom, is arranged and power transmission shaft in each driven gear chamber（4）Homoaxial driven gear（8）, driven gear（8）Lower end sets secondary joint（9）；In power transmission shaft（4）Driving gear is fixed with outward（7）；Driving gear（7）The driven gear uniform with periphery（8）Constitute ratcheting rotatable engagement.
2. stagewise topping machanism according to claim 1, is characterized in that：Power transmission shaft（4）Bottom sets horizontal nozzle（12）, horizontal nozzle（12）Positioned at secondary joint（9）Lower section；Stabilizer（10）Outer surface is intervally distributed with convex wing, stabilizer（10）Outer surface inlays anti-roll flute.
3. stagewise topping machanism according to claim 1 and 2, is characterized in that：In power transmission shaft（4）With shell body（1）Primary seal device is installed between inwall（6）, driven gear（8）With stabilizer（10）Between two stage sealing device is installed（11）, driven gear within the chamber is full of lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717530.2A CN106639865B (en) | 2015-10-30 | 2015-10-30 | Stagewise cutting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717530.2A CN106639865B (en) | 2015-10-30 | 2015-10-30 | Stagewise cutting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106639865A true CN106639865A (en) | 2017-05-10 |
| CN106639865B CN106639865B (en) | 2019-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510717530.2A Active CN106639865B (en) | 2015-10-30 | 2015-10-30 | Stagewise cutting apparatus |
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| Country | Link |
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| CN (1) | CN106639865B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887956A (en) * | 2019-12-18 | 2020-03-17 | 中铁工程装备集团有限公司 | Laser rock breaking test bed and rock breaking effect evaluation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484753A (en) * | 1983-01-31 | 1984-11-27 | Nl Industries, Inc. | Rotary shaft seal |
| CN102561951A (en) * | 2012-01-14 | 2012-07-11 | 中国石油天然气集团公司 | Double-stage and double-speed well drilling tool |
| CN203742454U (en) * | 2014-03-13 | 2014-07-30 | 长沙矿山研究院有限责任公司 | Reaming cutting head of blind raise boring machine |
| CN104563860A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Double-stage double-rotating-speed well drilling device |
| CN205172426U (en) * | 2015-10-30 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Hierarchical formula cutting device |
-
2015
- 2015-10-30 CN CN201510717530.2A patent/CN106639865B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484753A (en) * | 1983-01-31 | 1984-11-27 | Nl Industries, Inc. | Rotary shaft seal |
| CN102561951A (en) * | 2012-01-14 | 2012-07-11 | 中国石油天然气集团公司 | Double-stage and double-speed well drilling tool |
| CN104563860A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Double-stage double-rotating-speed well drilling device |
| CN203742454U (en) * | 2014-03-13 | 2014-07-30 | 长沙矿山研究院有限责任公司 | Reaming cutting head of blind raise boring machine |
| CN205172426U (en) * | 2015-10-30 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Hierarchical formula cutting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887956A (en) * | 2019-12-18 | 2020-03-17 | 中铁工程装备集团有限公司 | Laser rock breaking test bed and rock breaking effect evaluation method |
| CN110887956B (en) * | 2019-12-18 | 2022-01-28 | 中铁工程装备集团有限公司 | Laser rock breaking test bed and rock breaking effect evaluation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106639865B (en) | 2019-03-12 |
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Effective date of registration: 20230601 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |
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