CN210195663U - Cable type drilling directional device - Google Patents
Cable type drilling directional device Download PDFInfo
- Publication number
- CN210195663U CN210195663U CN201920294843.5U CN201920294843U CN210195663U CN 210195663 U CN210195663 U CN 210195663U CN 201920294843 U CN201920294843 U CN 201920294843U CN 210195663 U CN210195663 U CN 210195663U
- Authority
- CN
- China
- Prior art keywords
- rotary joint
- drilling
- shell
- cable
- hole
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a cable type drilling directional device, which comprises a device shell, wherein a speed reducing motor is arranged in the device shell, one end of the cable type drilling directional device is connected with the speed reducing motor in a transmission way, the other end of the cable type drilling directional device is used for being connected with a rotary joint of a downhole drilling device, and the rotary joint is rotatably arranged in the device shell; a gap is formed between the motor shell and the device shell, the rotary joint is provided with a cavity with an opening facing the drilling device, the outer wall of the rotary joint is provided with a pore channel communicated with the gap, and the gap, the pore channel and the cavity form a slurry channel to provide driving force for the downhole drilling device. The electric power is transmitted to the underground through the cable to drive the speed reducing motor to work, the speed reducing motor drives the rotary joint to rotate, the rotary joint is connected with the underground drilling device, the speed reducing motor directly drives the rotary joint to carry out drilling direction control, the direction is accurate, and the direction control precision is high. The utility model discloses utilize the cable to carry out the communication, rely on the mud wave communication among the prior art, the reliability is high and fast.
Description
Technical Field
The utility model relates to a drilling equipment field, concretely relates to cable type well drilling orienting device.
Background
Modern well drilling is intelligent well drilling, and information is transmitted from the ground to the underground all the time. The direction of a drilling tool needs to be frequently adjusted during modern horizontal well drilling, so that a well hole extends according to a pre-designed track and passes through an oil layer, and the oil drainage area during later exploitation is large and the exploitation efficiency is high. The well drilling directional device is a tool for adjusting the well drilling direction and works together with the drill bit and the motor in the well. The traditional directional drilling tool is of a mud type, information is transmitted by mud waves, and a directional device is driven to rotate by high-pressure mud. The mode has low steering precision on driving rotation, and is easy to cause inconsistency between an actual borehole and a designed track, even larger deviation. The mode of transmitting signals by mud also has the defects of low speed, small information quantity, low reliability, incapability of transmitting signals in long distance and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cable type well drilling orienting device passes through the cable with the ground electric energy and transmits to making gear motor rotatory in the pit, and the drive is instrument rotation in the pit and is adjusted the well orbit, and it is low to rely on mud drive rotation accuracy among the overcome prior art, the inconsistent problem of well and design orbit.
In order to achieve the above object, the utility model discloses a cable type well drilling orienting device adopts following technical scheme: the cable type drilling directional device comprises a device shell, wherein a speed reducing motor is arranged in the device shell, the speed reducing motor comprises a motor shell, one end of the cable type drilling directional device is in transmission connection with the speed reducing motor, the other end of the cable type drilling directional device is used for being connected with a rotary joint of the underground drilling device, and the rotary joint is rotatably arranged in the device shell; a gap is formed between the motor shell and the device shell, the rotary joint is provided with a cavity with an opening facing the drilling device, the outer wall of the rotary joint is provided with a pore channel communicated with the gap, and the gap, the pore channel and the cavity form a mud channel to provide driving force for the downhole drilling device.
The motor shell is installed inside the device shell through the switching sleeve, a communicating hole is formed in the wall of a cavity of the switching sleeve, one end of the communicating hole is communicated with a gap between the motor shell and the device shell, and the other end of the connecting hole is communicated with a hole channel in the rotary joint.
And anti-rotation spline structures are arranged between the adapter sleeve and the device shell and between the adapter sleeve and the motor shell.
The inner wall of the adapter sleeve is provided with a first radial bearing for mounting one end of the rotary joint, the end part of the device shell is provided with a hollow end head, the inner wall of the end head is provided with a second radial bearing for mounting the other end of the rotary joint, and a bidirectional thrust bearing for mounting the rotary joint is arranged between the first radial bearing and the second radial bearing on the inner wall of the device shell.
The bidirectional thrust bearing comprises a first bidirectional thrust bearing close to the adapter sleeve and a second bidirectional thrust bearing close to the end head, a first wave spring is sleeved between the first bidirectional thrust bearing and the adapter sleeve on the rotary joint, and a second wave spring is sleeved between the second bidirectional thrust bearing and the end head on the rotary joint.
The rotary joint is sleeved with a bearing ring between the two bidirectional thrust bearings, the outer wall of the rotary joint is provided with a groove, the bearing ring is provided with a mounting hole corresponding to the groove, a shear block is arranged in the mounting hole, and the end part of the shear block extends into the groove to be matched with the limiting stop of the groove in the axial direction of the device shell.
The cavity of the rotary joint is provided with a hole electric connector used for being connected with an electric signal of the underground drilling device and used for transmitting information of the underground drilling device, the other end of the hole electric connector is fixedly connected to the rotary joint, the connecting end of the hole electric connector is electrically connected with a slip ring electric connector, and the slip ring electric connector transmits information through a cable.
The slip ring electric connector comprises an annular conductor arranged on the adapter sleeve, a point-shaped conductor arranged on the rotary joint and a spring for jacking the point-shaped conductor, wherein the annular conductor is connected with a motor end cable, and the point-shaped conductor is connected with a hole of the electric connector cable.
The adapter sleeve is provided with a cable channel, and the inner wall of the shell of the speed reducing motor is provided with a cable mounting groove communicated with the cable channel.
The utility model has the advantages that: the electric power is transmitted to the underground through a cable to drive a speed reducing motor to work, the speed reducing motor drives a rotary joint to rotate, the rotary joint is connected with an underground drilling device, the drilling device is a conventional drilling device, such as a mud motor, a mud channel is arranged in the directional device so that mud can enter the mud motor to provide driving force for the mud motor, the speed reducing motor directly drives the rotary joint to perform drilling direction control, the direction is accurate, and the direction control precision is high.
Furthermore, the information of the underground device is transmitted to the ground through the hole electric connector, the slip ring electric connector and the cable, and the cable is used for transmitting signals and has the advantages of high information transmission speed, large quantity, high reliability, no limitation of long-distance transmission on signal transmission and the like.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the cable drilling directional device of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Detailed Description
The utility model discloses an embodiment of cable type well drilling orienting device, as shown in fig. 1-2, including device shell 1, device shell 1 is inside to be provided with gear motor 2, and gear motor 2 includes motor housing 3, and this cable type well drilling orienting device still includes that one end is connected with gear motor 2 transmission, the other end is used for connecting the rotary joint 4 of device in the pit. The swivel joint 4 is rotatably mounted in the device housing. The swivel 4 comprises a swivel mounting portion 5 in the housing of the device and a drilling device mounting portion 6 at the end of the housing of the device. The downhole drilling device is in this embodiment a mud motor. Motor housing 3 installs inside the device shell through switching cover 7, all is provided with between switching cover 7 and the device shell 1 and between switching cover 7 and motor housing 3 and prevents rotating spline structure.
A gap 8 is arranged between the motor shell 3 and the device shell 1, the rotary joint 4 is provided with a cavity 9 which is opened towards the drilling device, the outer wall of the rotary joint 4 is provided with a hole passage 10 communicated with the gap 8, and the gap 8 and the hole passage 10 form a mud passage to provide driving force for the drilling device. The cavity wall of the adapter sleeve 7 is provided with a communicating hole 11 which is communicated with the gap between the motor shell and the device shell and is also communicated with the pore channel on the rotary joint so as to allow slurry to pass through. The cavity 9 is provided with a hole electric connector 12 used for being connected with an electric signal of the drilling device and used for transmitting the signal of the drilling device, the other end of the hole electric connector 12 is fixedly connected to the rotary joint 4, the connecting end of the hole electric connector is electrically connected with a slip ring electric connector 23, and the slip ring electric connector 23 transmits information through a cable 26 and transmits the information to the ground.
The rotary joint 4 is provided with an installation cavity communicated with the cavity 9, a sealing joint 22 is arranged in the installation cavity, and the hole electric connector is electrically connected with the sealing joint 22. Be provided with first connecting hole on the rotary joint, be provided with the second connecting hole that corresponds with first connecting hole on the hole electric connector, connect through screw 21 between first connecting hole and the second connecting hole. The slip ring electric connector 23 comprises an annular conductor 27 arranged on the adapter sleeve 7, a point-shaped conductor 30 arranged on the rotary joint 4 and a spring 29 pressing the point-shaped conductor 30, wherein the annular conductor 27 is connected with a motor end cable, and the point-shaped conductor 30 is connected with an electric connector cable 31. The adapter sleeve is provided with a cable channel 28, and the inner wall of the shell of the speed reducing motor is provided with a cable mounting groove 25 communicated with the cable channel 28.
The inner wall of the adapter sleeve is provided with a first radial bearing 14 for mounting one end of a rotary joint, the end part of the device shell is provided with a hollow end head 20, the end head 20 is in threaded connection with the device shell, the inner wall of the end head 20 is provided with a second radial bearing 15 for mounting the other end of the rotary joint, and a bidirectional thrust bearing 16 for mounting the rotary joint is arranged between the first radial bearing 14 and the second radial bearing 15 on the inner wall of the device shell 1. The number of the bidirectional thrust bearings 16 is two, the bidirectional thrust bearings comprise a first bidirectional thrust bearing close to the adapter sleeve and a second bidirectional thrust bearing close to the end head, a first wave spring 17 is sleeved between the first bidirectional thrust bearing and the adapter sleeve on the rotary joint, and a second wave spring is sleeved between the second bidirectional thrust bearing and the end head on the rotary joint. The rotary joint is guided by two radial bearings and is axially supported and damped by a bidirectional thrust bearing and a wave spring. A bearing ring 18 is sleeved between the two bidirectional thrust bearings on the rotary joint, a groove is formed in the outer wall of the rotary joint, a mounting hole corresponding to the groove is formed in the bearing ring 18, a shear block 19 is arranged in the mounting hole, and the end portion of the shear block 19 extends into the groove to be matched with the groove in the axial direction of the shell in a limiting and stopping mode.
The utility model discloses a cable type well drilling orienting device is when using, and mud gets into the mud motor through the mud passageway that is formed by the intercommunication hole on clearance between motor housing and the device shell, rotary joint's cavity, the pore on rotary joint's the outer wall and the switching cover, the rotatory well drilling of drive bit. The downhole azimuth signal transmits the electrical signal uphole through the electrical connector and the cable. When the direction needs to be changed, the cable supplies power, the speed reducing motor works to drive the rotary joint to rotate until the direction requirement is met. When needs whipstock, gear motor stall, the well can be according to mud motor's crooked shell angle whipstock, and when getting into the horizontal segment and not needing the whipstock at that time, gear motor lasts 360 degrees slow rotations, and the hole diameter reaming is no longer whipstock, so realizes directional drilling whipstock and the mode switch that does not whipstock. The utility model discloses a cable type well drilling orienting device has the precision height, makes things convenient for operation control, can continuous two-way rotatory advantage.
The utility model discloses a benefit is that it is rotatory to make gear motor in the pit to pass through the cable transmission with the ground electric energy, and the instrument rotates in the drive pit and adjusts the well orbit, and it is low to rely on mud drive rotation precision among the overcome prior art, the inconsistent problem of well and design orbit. Meanwhile, the cable is used for transmitting signals, and the method has the advantages of high information transmission speed, large quantity, high reliability, no limitation of long-distance transmission on signal transmission and the like.
Claims (8)
1. Cable type well drilling orientation device, its characterized in that: the cable type well drilling directional device comprises a device shell, wherein a speed reducing motor is arranged in the device shell, the speed reducing motor comprises a motor shell, one end of the cable type well drilling directional device is in transmission connection with the speed reducing motor, the other end of the cable type well drilling directional device is used for being connected with a rotary joint of an underground well drilling device, and the rotary joint is rotatably arranged in the device shell; a gap is formed between the motor shell and the device shell, the rotary joint is provided with a cavity with an opening facing the drilling device, the outer wall of the rotary joint is provided with a pore channel communicated with the gap, and the gap, the pore channel and the cavity form a mud channel to provide driving force for the downhole drilling device.
2. The wireline drilling orientation device of claim 1, wherein: the motor shell is installed inside the device shell through the switching sleeve, a communicating hole is formed in the wall of a cavity of the switching sleeve, one end of the communicating hole is communicated with a gap between the motor shell and the device shell, and the other end of the connecting hole is communicated with a hole channel in the rotary joint.
3. The wireline drilling orientation device of claim 2, wherein: and anti-rotation spline structures are arranged between the adapter sleeve and the device shell and between the adapter sleeve and the motor shell.
4. The wireline drilling orientation device of claim 2, wherein: the inner wall of the adapter sleeve is provided with a first radial bearing for mounting one end of the rotary joint, the end part of the device shell is provided with a hollow end head, the inner wall of the end head is provided with a second radial bearing for mounting the other end of the rotary joint, and a bidirectional thrust bearing for mounting the rotary joint is arranged between the first radial bearing and the second radial bearing on the inner wall of the device shell.
5. The wireline drilling orientation device of claim 4, wherein: the bidirectional thrust bearing comprises a first bidirectional thrust bearing close to the adapter sleeve and a second bidirectional thrust bearing close to the end head, a first wave spring is sleeved between the first bidirectional thrust bearing and the adapter sleeve on the rotary joint, and a second wave spring is sleeved between the second bidirectional thrust bearing and the end head on the rotary joint.
6. The wireline drilling orientation device of claim 5, wherein: the rotary joint is sleeved with a bearing ring between the two bidirectional thrust bearings, the outer wall of the rotary joint is provided with a groove, the bearing ring is provided with a mounting hole corresponding to the groove, a shear block is arranged in the mounting hole, and the end part of the shear block extends into the groove to be matched with the limiting stop of the groove in the axial direction of the device shell.
7. The wireline drilling orientation device of any of claims 1-6, wherein: the cavity of the rotary joint is provided with a hole electric connector used for being connected with an electric signal of the underground drilling device and used for transmitting information of the underground drilling device, the other end of the hole electric connector is fixedly connected to the rotary joint, the connecting end of the hole electric connector is electrically connected with a slip ring electric connector, and the slip ring electric connector transmits information through a cable.
8. The wireline drilling orientation device of claim 7, wherein: the slip ring electric connector comprises an annular conductor arranged on the adapter sleeve, a point-shaped conductor arranged on the rotary joint and a spring for jacking the point-shaped conductor, wherein the annular conductor is connected with a motor end cable, and the point-shaped conductor is connected with a hole of the electric connector cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920294843.5U CN210195663U (en) | 2019-03-08 | 2019-03-08 | Cable type drilling directional device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920294843.5U CN210195663U (en) | 2019-03-08 | 2019-03-08 | Cable type drilling directional device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210195663U true CN210195663U (en) | 2020-03-27 |
Family
ID=69880842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920294843.5U Active CN210195663U (en) | 2019-03-08 | 2019-03-08 | Cable type drilling directional device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210195663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779524A (en) * | 2019-03-08 | 2019-05-21 | 南阳市天达同兴石油技术有限公司 | A kind of cable type drilling well orienting device |
-
2019
- 2019-03-08 CN CN201920294843.5U patent/CN210195663U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779524A (en) * | 2019-03-08 | 2019-05-21 | 南阳市天达同兴石油技术有限公司 | A kind of cable type drilling well orienting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022083602A1 (en) | Short-radius drilling tool, track-controllable lateral drilling tool and method | |
| CN106014391B (en) | Near-bit measurement while drilling system | |
| WO2020244665A1 (en) | Rotary steering well-drilling tool based on bit pressure steering transmission structure | |
| CN110485923B (en) | Half-rotation well track control tool | |
| CN114439371B (en) | Controlled ultra-short radius guiding drilling system and drilling method | |
| CN106639898B (en) | It is a kind of to cross line helicoid hydraulic motor | |
| CA2604002A1 (en) | Drilling with casing | |
| US9840894B2 (en) | Drill head and device with a sliding contact electrical connection for drilling a bore in the ground | |
| CN109098660B (en) | Modulation push type and eccentric ring pointing type mixed type guiding drilling tool | |
| CN102022083B (en) | Rotary guide well drilling tool | |
| CN108868676B (en) | Through-casing penetrating well wall coring tool | |
| US7270198B2 (en) | Orienter for drilling tool assembly and method | |
| CN113047772A (en) | Tool and method for performing directional operation in cooperation with downhole power drilling tool | |
| CN109779524A (en) | A kind of cable type drilling well orienting device | |
| CN210195663U (en) | Cable type drilling directional device | |
| CN108843242B (en) | Rotary steering drilling system with low cost, high build-up rate and high mechanical drilling rate | |
| CN105422004B (en) | The automatically controlled orienting device of continuously pipe based on hollow brushless motor | |
| CN112502626A (en) | Full-rotation directional type guiding tool and design method for improving build-up rate structure | |
| CN112127797B (en) | Convertible drill bit and drilling tool combination and method for directional drilling of underground coal mine | |
| CN110847821B (en) | High-deflecting and high-drilling-speed rotary guide system | |
| CN210370496U (en) | Eccentric actuating mechanism | |
| CN201851012U (en) | Rotary guide drilling tool | |
| CN112983274A (en) | Rotary guide type two-stage down-the-hole hammer drill | |
| CN217976084U (en) | Mechanical rotary guide capable of reducing friction resistance and supporting pressure | |
| CN216110538U (en) | Tool for directional operation in cooperation with downhole power drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |