CN112252963B - Novel combined drilling tool - Google Patents
Novel combined drilling tool Download PDFInfo
- Publication number
- CN112252963B CN112252963B CN202011016805.7A CN202011016805A CN112252963B CN 112252963 B CN112252963 B CN 112252963B CN 202011016805 A CN202011016805 A CN 202011016805A CN 112252963 B CN112252963 B CN 112252963B
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- China
- Prior art keywords
- fixed
- transmission shaft
- drilling tool
- casing
- wall
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- 238000005553 drilling Methods 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims description 6
- 230000005570 vertical transmission Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
- E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a novel combined drilling tool, which comprises a shell, wherein a transmission shaft is vertically fixed in the shell, a connecting section is fixed on the upper part of the transmission shaft, the connecting section is fixed with the middle of the transmission shaft in a sealing way, a thrust bearing is tightly and fixedly arranged on one side of the transmission shaft, a radial bearing is transversely fixed at the bottom of the transmission shaft, a fixing sleeve is tightly arranged on the inner side of the shell, a stator casing is arranged on the inner side of the fixing sleeve, a locking structure is arranged at the joint of the fixing sleeve and the stator casing, the locking structure comprises an internal thread arranged on the inner wall of the shell, an external thread arranged on the outer wall of the fixing sleeve and a limiting part arranged at the upper end and the lower end of the fixing sleeve, a limiting spring is fixedly connected at the bottom of the limiting clamping groove, a rubber part is arranged between the stator casing and the fixing sleeve, the stator casing and the shell are fixed by bolts, the stability of the shell and the drilling tool is improved, and the safety of the drilling tool operation is provided.
Description
Technical Field
The invention relates to the technical field of underground petroleum equipment, in particular to a combined drilling tool.
Background
With the deep exploration and development, the increase of the exploration depth leads to the increase of the operation resistance, so that the conventional rotary table drilling mode cannot meet the power requirement of efficient rock breaking of the underground drill bit, meanwhile, a non-smooth borehole track also brings difficulty to the running and subsequent casing running operation, under the condition, the screw drilling tool is widely applied to a deep well directional well and a horizontal well with the characteristics of strong power, easiness in operation and the like, but in the process of using the screw drilling tool in a large quantity, the situation that the screw drilling tool is damaged in advance due to the fact that material factors, processing factors, practical maintenance and the like is caused, the loss is huge, and therefore the screw drilling tool is particularly important for the optimization design of the screw drilling tool.
In general, a screw drill rotates clockwise to output torque under the action of hydraulic pressure, and meanwhile, according to the relation between acting force and reacting force, the rotor generates anticlockwise torque to a stator, so that a fastening effect is achieved, but clockwise friction force generated at a drilling tool part contacted with a well wall, such as a casing, a drill collar and a stabilizer, comprising the stator can cause the drilling tool to generate a loose fastening trend, and the casing of the drilling tool can be fallen off to influence downhole operation, so that a new solution is needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a novel combined drilling tool, which comprises a shell, wherein a transmission shaft is vertically fixed inside the shell, a connecting section is fixed on the upper part of the transmission shaft, the connecting section is fixedly sealed with the middle of the transmission shaft, a thrust bearing is tightly fixed on one side of the transmission shaft, a first radial bearing is transversely fixed on the upper part of the transmission shaft, a second radial bearing is transversely fixed on the lower part of the transmission shaft, a fixed sleeve is tightly fixed on the inner side of the shell, a stator casing is arranged on the inner side of the fixed sleeve, a locking structure is arranged between the fixed sleeve and the shell, the locking structure comprises an internal thread arranged on the inner wall of the shell, an external thread arranged on the outer wall of the fixed sleeve and a limiting part arranged at the upper end and the lower end of the fixed sleeve, the limiting part at the upper end and the lower end of the shell comprises a limiting block arranged on the outer side of the fixed sleeve, a limiting spring is fixedly connected to the bottom of the limiting block groove, a cushion block fixed on the bottom of the limiting spring is tightly fixed on the bottom, a rubber clamping sleeve is arranged between the fixed sleeve and the fixed sleeve, a square clamping groove is arranged between the fixed sleeve and the bottom of the transmission shaft, a square clamping groove is arranged on the top of the drill bit is arranged on the drill bit, and the top of the drill bit is connected with the drill bit.
As an improvement of the invention, the bottoms of the thrust bearing, the first radial bearing and the second radial bearing are provided with adjusting washers and positioning nuts.
As an improvement of the invention, the pitch of the internal thread on the inner wall of the shell is the same as that of the external thread on the outer wall of the fixed sleeve.
As an improvement of the invention, the stator casing is made of rubber.
As an improvement of the invention, the upper part of the connecting section is connected with a fixed cover.
As an improvement of the invention, the surface of the transmission shaft is plated with a high polymer wear-resistant material, the transmission shaft mainly has the function of converting hydraulic pressure into rotational energy, providing the rotational energy for a drill bit to break rock, and forming a transmission assembly by the transmission shaft and a shell.
As an improvement of the invention, the valve is closed during drilling, the valve of the bypass valve is closed during drilling stopping, and the valve is opened during drilling stopping or tripping, so that the interior of the drill rod is communicated with the annulus, the tripping exciting pressure is reduced, and meanwhile, the drilling fluid in the drill rod is prevented from splashing on the drill floor during drilling rod unloading.
Compared with the prior art, the invention has the beneficial effects that: through being equipped with locking structure to fixed cover and stator cover shell junction, locking structure is including establishing the internal thread on shells inner wall, establish the external screw thread on fixed cover outer wall and install the spacing part of lower extreme on fixed cover, the internal thread on the shells inner wall cooperatees with the external screw thread on the fixed cover outer wall, and the spacing part of lower extreme is including establishing the stopper at the fixed cover lateral surface on the casing, improves the stability of casing and drilling tool itself, prevents to appear the casing because of the not hard up condition that drops even that the transmission shaft motion leads to, has provided the security of drilling tool operation simultaneously.
Drawings
Fig. 1 is a schematic structural view of a composite drilling tool according to the present invention.
Fig. 2 is a schematic structural view of the anti-loosening structure according to the present invention.
In the figure: 1. the anti-loosening structure 2, the connecting section 3, the fixed cover 4, the first radial bearing 5, the second radial bearing 6, the rubber piece 7, the thrust bearing 8, the drill bit 9, the clamping groove 10, the fixed clamping piece 11, the transmission shaft 12, the shell 13, the fixed sleeve 14, the stator casing 15, the adjusting washer 16, the positioning nut 101, the internal thread 102, the external thread 103, the limiting block 104, the limiting spring 105, the cushion block 106 and the bolt.
Detailed Description
The present invention will be further described with reference to fig. 1 to 2, but the scope of the present invention should not be limited thereto. For the convenience of description and understanding of the technical solutions of the present invention, the following description is presented with reference to the accompanying drawings.
Examples: the drilling tool comprises a shell body 12, a transmission shaft 11 is vertically fixed in the shell body 12, a connecting section 2 is fixed on the upper part of the transmission shaft 11, the connecting section 2 is fixed with the middle of the transmission shaft 11 in a sealing way, a thrust bearing 7 is tightly fixed on one side of the transmission shaft 11, a first radial bearing 4 is transversely fixed on the upper part of the transmission shaft 11, a second radial bearing 5 is transversely fixed on the lower part of the transmission shaft 11, a fixed sleeve 13 is tightly fixed on the inner side of the shell body 12, a stator casing 14 is arranged on the inner side of the fixed sleeve 13, a locking structure 1 is arranged between the fixed sleeve 13 and the shell body 12, the locking structure 1 comprises an internal thread 101 arranged on the inner wall of the shell body 12, an external thread 102 arranged on the outer wall of the fixed sleeve 13 and a limiting part arranged on the upper end and the lower end of the fixed sleeve 13, the internal thread 101 on the inner wall of the shell body 12 is matched with the external thread 102 on the outer wall of the fixed sleeve 13, the limiting parts at the upper end and the lower end of the shell 12 comprise limiting blocks 103 arranged on the outer side surface of a fixed sleeve 13, the limiting blocks 103 are fixedly clamped with limiting clamping grooves at the upper end of the inner wall of the shell 12, limiting springs 104 are fixedly connected to the bottoms of the limiting clamping grooves, the limiting springs 104 are fixed on cushion blocks 105 at the bottom, rubber parts 6 are arranged between a stator sleeve shell 14 and the fixed sleeve 13, the stator sleeve 14 and the shell 12 are fixed by bolts 106, a fixed clamping part 10 is arranged at the top of a transmission shaft 11, clamping grooves 9 are arranged at the top of the transmission shaft 11, fixing clamping parts 10 matched with the clamping grooves 9 at the top of the transmission shaft 11 are arranged at the bottom of the connection section 2, the clamping grooves 9 are square, the bottoms of the transmission shaft 11 are connected with a drill bit 8, an adjusting washer 15 and a positioning nut 16 are arranged at the bottoms of a thrust bearing 7, a first radial bearing 4 and a second radial bearing 5, the internal thread 101 on the inner wall of the shell 12 is the same as the external thread 102 on the outer wall of the fixed sleeve 13 in pitch, the stator casing 14 is made of rubber materials, the surface of the transmission shaft 11 is plated with high polymer wear-resistant materials, the transmission shaft 11 and the main function are used for converting hydraulic pressure into rotary energy, rock breaking is achieved by a drill bit, a transmission assembly is formed by the transmission shaft 11 and the shell 12, a valve is closed during drilling, the valve is closed during drilling stopping or opening during drilling, the inside of a drill rod is communicated with an annulus, the agitation pressure during drilling is reduced, drilling fluid in the drill rod is prevented from splashing on a drill floor during drilling rod unloading, the anti-loosening structure 1 comprises the internal thread 101 arranged on the inner wall of the shell, the external thread 102 arranged on the outer wall of the fixed sleeve 13 and a limiting part arranged at the upper end and the lower end of the fixed sleeve 13, the internal thread 101 on the inner wall of the shell 12 is matched with the external thread 102 on the outer wall of the fixed sleeve 13, and the limiting part at the upper end and the lower end of the shell 12 comprises the limiting part arranged on the outer side 103 arranged on the outer side of the fixed sleeve 13, so that the inner wall of the shell 12 is communicated with the annular space of the fixed sleeve 13, the stability of the shell 12 is improved, and the stability of the shell is prevented from falling of the shell 12 and the drilling tool is even the drilling tool is prevented from being caused by the movement of the shell 11.
Finally, it should be noted that: the foregoing embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that modifications may be made to the technical solution described in the foregoing embodiments, or equivalents may be substituted for some or all of the technical features thereof, without departing from the spirit of the corresponding technical solution from the scope of the technical solution of the embodiments of the present invention.
Claims (6)
1. The utility model provides a novel combination drilling tool, its characterized in that, drilling tool includes casing (12), casing (12) inside vertical transmission shaft (11) that is fixed with, transmission shaft (11) upper portion is fixed with changeover portion (2), changeover portion (2) are fixed with transmission shaft (11) intermediate seal, fixed mounting has thrust bearing (7) in hugging closely to transmission shaft (11) one side, and first radial bearing (4) transversely fix on transmission shaft (11) upper portion, second radial bearing (5) transversely fix in transmission shaft (11) lower part, casing (12) inboard hugs closely and is equipped with fixed cover (13), fixed cover (13) inboard is equipped with stator cover shell (14), be equipped with locking structure (1) between fixed cover (13) and casing (12), locking structure (1) are including setting up internal thread (101) on casing (12) inner wall, external thread (102) on fixed cover (13) outer wall and the spacing part of installing on fixed cover (13) upper and lower ends, internal thread (101) on casing (12) inner wall and fixed cover (13) outer wall and outer thread (103) on the outer side of fixed cover (13) are equipped with limit block (102) on the fixed side of casing (12), limiting block (103) are fixed with the spacing draw-in groove block of casing (12) inner wall upper end, spacing draw-in groove bottom fixedly connected with spacing spring (104), spacing spring (104) are fixed on cushion (105) of bottom, be equipped with rubber spare (6) between stator cover shell (14) and fixed cover (13), stator cover shell (14) and casing (12) between with bolt (106) fixed, transmission shaft (11) top is equipped with draw-in groove (9), the bottom of linkage segment (2) is equipped with draw-in groove matched with fixed fastener (10) at transmission shaft (11) top, draw-in groove (9) are square, drill bit (8) are connected to transmission shaft (11) bottom.
2. A new combination drilling tool according to claim 1, characterized in that the bottoms of the thrust bearing (7), the first radial bearing (4) and the second radial bearing (5) are provided with an adjusting washer (15) and a positioning nut (16).
3. The novel combination drilling tool according to claim 1, wherein the internal thread (101) on the inner wall of the housing (12) is equal to the external thread (102) on the outer wall of the fixed sleeve (13).
4. A new combination drilling tool according to claim 1, characterized in that the stator casing (14) is of rubber material.
5. A novel combination drilling tool according to claim 1, characterized in that the surface of the transmission shaft (11) is coated with a high molecular wear-resistant material.
6. A new combination drilling tool according to claim 1, characterized in that the upper part of the connecting section (2) is connected with a stationary cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011016805.7A CN112252963B (en) | 2020-09-24 | 2020-09-24 | Novel combined drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011016805.7A CN112252963B (en) | 2020-09-24 | 2020-09-24 | Novel combined drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112252963A CN112252963A (en) | 2021-01-22 |
| CN112252963B true CN112252963B (en) | 2023-06-23 |
Family
ID=74232080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011016805.7A Active CN112252963B (en) | 2020-09-24 | 2020-09-24 | Novel combined drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112252963B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317372A (en) * | 2014-08-02 | 2016-02-10 | 江苏贵鑫石油装备有限公司 | One-way bypass screw drilling tool |
| WO2016150113A1 (en) * | 2015-03-25 | 2016-09-29 | 东方宝麟科技发展(北京)有限公司 | Positive displacement motor drill and rock breaking well drilling method therefor |
| CN106499357A (en) * | 2016-12-07 | 2017-03-15 | 中国石油集团西部钻探工程有限公司 | Hydroscillator |
| CN208364080U (en) * | 2018-07-05 | 2019-01-11 | 湖南科技大学 | A kind of cord coring drill single action mechanism suitable for seabed drilling machine |
| CN109267933A (en) * | 2017-07-17 | 2019-01-25 | 盐城市新永佳石油机械制造有限公司 | A kind of antidetonation helicoid hydraulic motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8869917B2 (en) * | 2011-06-22 | 2014-10-28 | Coiled Tubing Rental Tools, Inc. | Housing, mandrel and bearing assembly for downhole drilling motor |
| CN205382878U (en) * | 2015-12-31 | 2016-07-13 | 西南石油大学 | Gas drilling screw rod drilling tool but gas drive of remote control speed governing is surged |
-
2020
- 2020-09-24 CN CN202011016805.7A patent/CN112252963B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317372A (en) * | 2014-08-02 | 2016-02-10 | 江苏贵鑫石油装备有限公司 | One-way bypass screw drilling tool |
| WO2016150113A1 (en) * | 2015-03-25 | 2016-09-29 | 东方宝麟科技发展(北京)有限公司 | Positive displacement motor drill and rock breaking well drilling method therefor |
| CN106499357A (en) * | 2016-12-07 | 2017-03-15 | 中国石油集团西部钻探工程有限公司 | Hydroscillator |
| CN109267933A (en) * | 2017-07-17 | 2019-01-25 | 盐城市新永佳石油机械制造有限公司 | A kind of antidetonation helicoid hydraulic motor |
| CN208364080U (en) * | 2018-07-05 | 2019-01-11 | 湖南科技大学 | A kind of cord coring drill single action mechanism suitable for seabed drilling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112252963A (en) | 2021-01-22 |
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