CN106639865B - Stagewise cutting apparatus - Google Patents
Stagewise cutting apparatus Download PDFInfo
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- CN106639865B CN106639865B CN201510717530.2A CN201510717530A CN106639865B CN 106639865 B CN106639865 B CN 106639865B CN 201510717530 A CN201510717530 A CN 201510717530A CN 106639865 B CN106639865 B CN 106639865B
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- transmission shaft
- driven gear
- stabilizer
- outer housing
- stagewise
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Abstract
The present invention relates to a kind of stagewise cutting apparatus.Including outer housing 1 and the positive displacement motor 2, shaft coupling 3, the transmission shaft 4 that are placed in outer housing 1；4 top of transmission shaft sets by-pass prot 5, lower part sets level-one connector 13, expanding stabilizer 10 is extended in 1 lower part of outer housing, stabilizer 10 opens up several circumferentially uniformly distributed driven gear chambers from bottom axially upward, each intracavitary setting of driven gear and the homoaxial driven gear 8 of transmission shaft 4,8 lower end of driven gear sets secondary joint 9；Driving gear 7 is fixed with outside transmission shaft 4；Driving gear 7 and peripheral uniformly distributed driven gear 8 constitute ratcheting rotatable engagement.The device of the invention is 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；Also has the characteristics that structure design simple, reliable performance, easy to operate.
Description
Technical field
The present invention relates to oil and gas well drilling, CBM Drilling, geological prospecting, mine boring tool fields, especially
A kind of stagewise cutting apparatus.
Background technique
The reduction of drilling speed has become the technical bottleneck for restricting China's deep-seated oil gas reservoir Efficient Development, and existing conventional broken rock
Drilling technology is not able to satisfy the technique requirement for proposing effect.PDC drill bit has the advantages that have obtained extensively better than other drill bits
Using, but big size hole drilling speed is slow, high abrasive stratum bit wear is serious, large scale or high-performance drill bit are expensive,
The main problem that low broken rock energy deficiency of bit central linear velocity etc. and PDC drill bit face, New well drilling technology such as laser drilling
The technical requirements of field application are also not achieved in well, drilling by use of heat, particle punching drilling etc..
Summary of the invention
The purpose of invention needs precisely in order to solving the prior art, proposes that a kind of structure is simple, and reliable performance controls precision
Height, easy to operate stagewise cutting apparatus.
The technical solution adopted by the present invention to solve the technical problems is:
Stagewise cutting apparatus, including outer housing 1 and the positive displacement motor 2, the shaft coupling 3, transmission shaft that are placed in outer housing 1
4；4 top of transmission shaft sets by-pass prot 5, and lower part sets level-one connector 13, expanding stabilizer 10 is extended in 1 lower part of outer housing, surely
Determine device 10 and opens up several circumferentially uniformly distributed driven gear chambers, each intracavitary setting of driven gear and transmission axially upward from bottom
The homoaxial driven gear 8 of axis 4,8 lower end of driven gear sets secondary joint 9；Driving gear 7 is fixed with outside transmission shaft 4；Actively
Gear 7 and peripheral uniformly distributed driven gear 8 constitute ratcheting rotatable engagement.
Above scheme further include: 4 lower part of transmission shaft sets lateral nozzle 12, and lateral nozzle 12 is located at the lower section of secondary joint 9；
10 outer surface of stabilizer is intervally distributed with convex wing, and anti-roll flute is inlayed in 10 outer surface of stabilizer.
Above scheme further comprises: primary seal device 6, driven tooth are installed between 1 inner wall of transmission shaft 4 and outer housing
Two stage sealing device 11 is installed between wheel 8 and stabilizer 10, is full of lubricating oil in driven gear chamber.
The advantages of stagewise cutting apparatus of the present invention, is: combination multiple groups small bits, and each drilling bit high-speed is driven to revolve
Turn broken rock, has achieved the purpose that be drilled to big size hole using small bits, and bottom rock can be cut to greatest extent, fill
The technical advantage of PDC drill bit has been waved in distribution, to obtain higher efficiency of breaking rock and rate of penetration, additionally it is possible to control wellbore matter
Amount, while also overcoming the deficiency of low efficiency of breaking rock difference of conventional large scale drill bit linear velocity high quick abrasion service life.Stagewise cutting
Device is compared with conventional rock crushing tool, under conditions of same consumption energy and drilling period, can cut more rocks, that is, creep into
Speed faster, efficiency of breaking rock it is higher；And small bits larger size drill bit is cheap, and can drill out big size hole,
Economic benefit is very significant.Field practice proves, utilizes stagewise cutting apparatus drilling well, averagely raising drilling efficiency 56.7%, section
It saves drilling period 5-8 days, and drilling quality meets design standard, realizes low energy consumption, efficient drilling well purpose.
Meanwhile stagewise cutting apparatus also has the characteristics that structure design simple, reliable performance, easy to operate.
Detailed description of the invention
Fig. 1 is the stagewise cutting apparatus structural schematic diagram proposed according to the present invention.
Fig. 2 is the stagewise cutting apparatus Section A-A schematic diagram proposed according to the present invention.
In figure: 1- outer housing, 2- positive displacement motor, 3- shaft coupling, 4- transmission shaft, 5- by-pass prot, 6- primary seal device,
7- driving gear, 8- driven gear, 9- secondary joint, 10- stabilizer, 11- two stage sealing device, 12- transverse direction nozzle, 13- mono-
Grade connector.
Specific embodiment
Carry out the present invention is described in detail with reference to the accompanying drawing.
Such as Fig. 1, stagewise cutting apparatus is mainly by outer housing 1, positive displacement motor 2, shaft coupling 3, transmission shaft 4, driving tooth
Wheel 7, driven gear 8, level-one connector 13, secondary joint 9, stabilizer 10 form.Connection is installed between positive displacement motor and transmission shaft
Axis device 3,4 top of transmission shaft process by-pass prot 5,4 lower part cross machine nozzle 12 of transmission shaft, and 4 lower part of transmission shaft connection level-one connects
First 13, primary seal device 6 is installed, driving gear 7 is mounted on transmission shaft 4 between 1 inner wall of transmission shaft 4 and outer housing；Outside
1 lower part of shell is extended with expanding stabilizer 10, and stabilizer 10 opens up several circumferentially uniformly distributed driven axially upward from bottom
Gear cavity, each intracavitary setting of driven gear and the homoaxial driven gear 8 of transmission shaft 4,8 lower end of driven gear sets secondary joint
9, two stage sealing device 11 is installed between driven gear 8 and stabilizer 10.
Such as Fig. 2,10 outer surface of stabilizer is intervally distributed with convex wing, and anti-roll flute is inlayed in 10 outer surface of stabilizer.
When the device of the invention is applied to well drilling and rock crushing, level-one drill bit is connect with level-one connector, and second level drill bit connects with second level
Head connection, quantity can design processing 2 or 2 or more according to specific requirement, then start ground turntable and hydraulic pump, work as brill
After well liquid enters stagewise cutting apparatus, drilling fluid driving positive displacement motor is started turning, and drives transmission shaft to turn by shaft coupling
It is dynamic, and then level-one drill bit is driven to rotate broken rock, drilling fluid enters inside transmission shaft after positive displacement motor through by-pass prot, so
Shaft bottom is reached by level-one drill bit afterwards, with transmission shaft continuous rotation, torque is transferred to driven gear by driving gear, driving
Driven gear rotation, since second level drill bit is connect with driven gear, second level drill bit starts turning broken rock, part drilling fluid warp
The lateral nozzle crossed on transmission shaft projects, and carries out clear rock and cooling to second level drill bit, the stabilizer of outer housing lower part can either be true
It protects stagewise cutting apparatus and is driving the stability in all drill bit rock break-off process, and be able to maintain borehole size and meet the requirements,
The borehole wall can also be modified.
Claims (2)
1. stagewise cutting apparatus, including outer housing (1) and the positive displacement motor (2) being placed in outer housing (1), shaft coupling (3),
Transmission shaft (4)；Transmission shaft (4) top is set by-pass prot (5), and lower part sets level-one connector (13), it is characterized in that further include: in outer housing
(1) lower part is extended with expanding stabilizer (10), stabilizer (10) opened up axially upward from bottom it is several it is circumferentially uniformly distributed from
Moving gear chamber, each intracavitary setting of driven gear and transmission shaft (4) homoaxial driven gear (8), driven gear (8) lower end is set
Secondary joint (9)；Driving gear (7) are fixed with outside transmission shaft (4)；Driving gear (7) and peripheral uniformly distributed driven gear (8)
Constitute ratcheting rotatable engagement；Transmission shaft (4) lower part is set lateral nozzle (12), and lateral nozzle (12) is located under secondary joint (9)
Side；Stabilizer (10) outer surface is intervally distributed with convex wing, and anti-roll flute is inlayed in stabilizer (10) outer surface.
2. stagewise cutting apparatus according to claim 1, it is characterized in that: transmission shaft (4) and outer housing (1) inner wall it
Between install primary seal device (6), between driven gear (8) and stabilizer (10) installation two stage sealing device (11), driven tooth
It takes turns and is full of lubricating oil in chamber.
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 CN106639865A (en) | 2017-05-10 |
| CN106639865B true CN106639865B (en) | 2019-03-12 |
Family
ID=58830026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510717530.2A Active CN106639865B (en) | 2015-10-30 | 2015-10-30 | Stagewise cutting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106639865B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (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 |
| CN104563860B (en) * | 2013-10-27 | 2017-01-04 | 中国石油化工集团公司 | The double rotating speed drilling rig of a kind of twin-stage |
| 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 |
-
2015
- 2015-10-30 CN CN201510717530.2A patent/CN106639865B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106639865A (en) | 2017-05-10 |
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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 |