CN111980678B - Protection device for shear type horizontal directional drilling geological investigation in-hole logging instrument - Google Patents
Protection device for shear type horizontal directional drilling geological investigation in-hole logging instrument Download PDFInfo
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- CN111980678B CN111980678B CN202010964347.3A CN202010964347A CN111980678B CN 111980678 B CN111980678 B CN 111980678B CN 202010964347 A CN202010964347 A CN 202010964347A CN 111980678 B CN111980678 B CN 111980678B
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- guide shaft
- hole
- logging instrument
- joint
- tube
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- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 238000011835 investigation Methods 0.000 title claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 238000010008 shearing Methods 0.000 claims description 23
- 239000002002 slurry Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 239000011435 rock Substances 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Classifications
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/021—Devices for subsurface connecting or disconnecting by rotation
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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
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a shear type horizontal directional drilling geological survey hole logging instrument protection device, which comprises an outer tube combination, a lower protection tube and a drill bit, wherein the lower protection tube is connected with the upper protection tube; the inner tube testing device combination is located inside the outer tube combination and comprises a guide shaft, a short joint connected with the guide shaft through a guide shaft joint and a testing device connected with the lower end of the short joint, and an upper protection tube adapter and a lower protection tube adapter connected with the upper protection tube and the lower protection tube are arranged outside the circumference of the guide shaft joint. The invention not only ensures that the comprehensive logging device is not worn by the hole wall in the process of feeding the geological investigation hole into the hole bottom by the horizontal directional drilling engineering, but also can jet out mud to blow away the rock debris accumulated at the hole bottom in front of the drill bit, and can protect the comprehensive logging device from being pushed inwards smoothly. The device is very suitable for protecting and pushing the logging instrument in the geological survey hole of the horizontal directional drilling engineering, and has wide application prospect.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering investigation drilling machines, in particular to a protection device for a logging instrument in a geological investigation hole by shear horizontal directional drilling.
Background
For some large-deep-buried long-distance tunnel engineering, the traditional vertical hole geological drilling needs to penetrate through an upper covering layer to reach the stratum where the tunnel axis is located, but the geological features of tunnel axis trace surrounding rock cannot be truly and comprehensively reflected. If the horizontal directional drilling technology is applied to geological exploration of ultra-long-distance large-burial-depth underground engineering, an ultra-long-distance horizontal exploration hole is drilled at the entrance end of a tunnel, and the geological conditions along the underground can be truly reflected by combining with comprehensive logging and other testing means.
At present, the domestic comprehensive well logging is multipurpose in a vertical well, the application of a horizontal investigation hole is still blank, the tunnel track surrounding rock is investigated by combining a horizontal directional drill, but because a well logging instrument is conveyed into the bottom of the hole by a horizontal directional drill rod, the well logging instrument can generate great friction and extrusion force with the side wall of the geological investigation hole of a horizontal directional drilling engineering, a light person can have certain abrasion to the instrument, and a heavy person can damage the instrument, so that the well logging instrument cannot be normally used, unnecessary trouble is brought to the comprehensive well logging of the horizontal investigation hole, and the engineering progress is seriously influenced.
Disclosure of Invention
Based on the defects existing in the prior art, the technical problem to be solved by the invention is to provide the protection device for the shear type horizontal directional drilling geological survey in-hole logging instrument, which has the advantages of simple structure and reasonable design, and is used for protecting the comprehensive logging instrument from being worn by the hole wall in the process of being sent to the hole bottom by the horizontal directional drilling rod, protecting the comprehensive logging instrument from being pushed inwards smoothly and enabling the test to be carried out smoothly.
In order to achieve the above purpose, the present invention adopts the following technical measures:
The utility model provides a shear type horizontal directional drilling geological survey downthehole logging instrument protection device, includes the outer tube combination, and it includes upper protective tube, the lower protective tube of being connected with upper protective tube, the drill bit of being connected with lower protective tube; the inner pipe testing device assembly is positioned in the outer pipe assembly and comprises a guide shaft, a short joint connected with the guide shaft through a guide shaft joint and a testing device connected with the lower end of the short joint, and an upper protection pipe adapter and a lower protection pipe adapter connected with the upper protection pipe and the lower protection pipe are arranged outside the circumference of the guide shaft joint; the upper and lower protection pipe adapter is provided with an inner hole for the guide shaft, the guide shaft adapter and the short connector to pass through; the guide shaft connector is fixedly provided with a shearing pin which can be clamped in the upper and lower protection pipe adapter; the testing device comprises a logging instrument connected with the short joint and a logging instrument protection head connected to the lower end of the logging instrument; when the drill rod pushing outer tube combination of the horizontal directional drill moves towards the bottom of the hole, mud flows into the guide shaft through the inside of the upper protection tube, flows out of the mud outlet on the short joint through the short joint, flows into the inner cavity of the lower protection tube, and flows out into the horizontal investigation hole through the drill bit; when the drill rod pushing outer tube combination of the horizontal directional drill is sent to the bottom of the hole, the drill rod is pumped back to be larger than the length of the testing device, the mud pressure is increased to a pressure value required by shearing of the shearing pin, and after the shearing pin is sheared, the testing device is pushed out of the lower protection tube by mud under the action of the mud pressure to start in-hole detection.
Preferably, a threaded hole is formed in the middle of the guide shaft joint, and the shear pin can be directly fixed in the guide shaft joint through the threaded hole.
Further, right-angle steps are arranged in the upper and lower protection tube adapters and used for clamping the shearing pins.
Optionally, the short joint surface is equipped with the fender head that is used for preventing that the whole outside pipe combination of inner tube testing arrangement combination from retreating to the inside, just be equipped with the mud export in the lower extreme of fender head on the short joint.
Further, the outer diameter of the guide shaft is the same as the outer diameters of the guide shaft joint and the short joint, and the length of the guide shaft is larger than the total length of the logging instrument and the instrument protection head.
Optionally, the top end of the guide shaft is connected with a top cap, and the top cap is provided with a diversion notch which can enable slurry to flow into the guide shaft; when the inner tube testing device combination is combined by the mud pushing-out outer tube combination, the top cap is clamped on the right-angle step inside the upper and lower protection tube adapter, so that the inner tube testing device combination is not pushed out integrally.
Further, the logging cable penetrates out of the guide shaft and the short joint and is connected with the logging instrument.
By the method, the shear type horizontal directional drilling geological survey hole inner logging instrument protection device is simple in structure, and is mainly used for protecting the logging instrument from being pushed inwards when the logging instrument is used for detecting the horizontal directional drilling engineering geological survey hole, so that the logging instrument can be effectively prevented from being rubbed by the hole wall, the risk of instrument damage is reduced, and comprehensive logging of the horizontal directional drilling engineering geological survey hole is smoothly carried out. The invention not only ensures that the comprehensive logging device is not worn by the hole wall in the process of feeding the geological investigation hole into the hole bottom by the horizontal directional drilling engineering, but also can jet out mud to blow away the rock debris accumulated at the hole bottom in front of the drill bit, and can protect the comprehensive logging device from being pushed inwards smoothly. The device is very suitable for protecting and pushing the logging instrument in the geological survey hole of the horizontal directional drilling engineering, and has wide application prospect.
Drawings
FIG. 1 is a schematic structural view of a tool protector for a shear horizontal directional drilling geological survey in-hole logging in accordance with a preferred embodiment of the present invention.
FIG. 2 is a schematic diagram of the inner tube testing device assembly of the present invention.
Fig. 3 is a schematic structural view of the shear pin of the present invention clamped on the inner steps of the upper and lower protection tube adapters.
Wherein: the device comprises a 1-logging cable, a 2-upper protection pipe joint, a 3-upper protection pipe, a 4-top cap, a 5-guide shaft, a 6-upper and lower protection pipe adapter, a 7-guide shaft joint, an 8-shear pin, a 9-short joint, a 10-blocking head, a 11-slurry outlet, a 12-logging cable joint, a 13-lower protection pipe, a 14-logging instrument, a 15-logging instrument protection head and a 16-drill bit.
Detailed Description
The following describes in detail a protection device for a logging instrument in a geological survey hole for shear horizontal directional drilling according to the present invention with reference to fig. 1 to 3.
Referring to fig. 1 and 2, the shear pin type horizontal directional drilling engineering geological survey borehole logging instrument protection device comprises an outer tube combination and an inner tube testing device combination, wherein the outer tube combination comprises an upper protection tube 3, an upper protection tube adapter 6, a lower protection tube 13 and a drill bit 16. The middle of the upper protection tube 3 and the lower protection tube 13 is connected through an upper protection tube adapter 6 and a lower protection tube adapter 6, and a drill bit 16 is arranged at the lower end of the lower protection tube 13.
The inner pipe testing device comprises a top cap 4, a guide shaft 5, a guide shaft joint 7, a shear pin 8, a short joint 9, a short joint surface blocking head 10, a slurry outlet 11, a logging instrument 14 and a logging instrument protecting head 15, wherein the logging instrument 14 and the logging instrument protecting head 15 form a testing device. The top cap 4 in the inner tube testing device combination is arranged at the top end of the guide shaft 5, and the top cap 4 is arranged in a hollow mode and is provided with a flow guide notch which can enable slurry to flow into the guide shaft 5. The lower extreme of guiding axle 5 is connected with short joint 9 through guiding axle joint 7, and short joint 9's lower part surface is equipped with a stop 10 and a mud export 11, and stop 10 can prevent that inner tube testing arrangement combination whole from going back to outside protection tube (outer tube combination) the inside, and short joint 9's lower extreme is connected with logging instrument 14, and the front end of logging instrument 14 has a protection head 15. The logging cable 1 passes through the short joint 9 and the guide shaft 5, and is connected with the logging instrument 14 through the logging cable joint 12.
In addition, the inner diameter of the inner hole of the upper and lower protection tube adapter 6 is matched with the guide shaft 5, so that the guide shaft 5 just slides in the inner hole of the upper and lower protection tube adapter 6, a right-angle step is arranged in the upper and lower protection tube adapter 6, the top cap 4 and the shear pin 8 can be clamped, when the inner tube testing device combination is pushed out of the outer tube combination by mud, the top cap 4 is clamped on the right-angle step in the inner part of the upper and lower protection tube adapter 6, and the inner tube testing device combination is ensured not to be pushed out integrally. The outer diameter of the guide shaft 5 is the same as the outer diameters of the guide shaft joint 7 and the short joint 9, and the length of the guide shaft 5 is slightly larger than the total length of the logging instrument 14 and the instrument protection head 15.
Referring to fig. 3, the lower end of the guide shaft 5 is connected with a guide shaft joint 7, the upper and lower protection tube adapters 6 are sleeved outside the circumference of the guide shaft joint 7, a threaded hole is formed in the middle of the guide shaft joint 7, shearing pins 8 with different shearing forces can be fixed in the threaded hole, and the shearing pins 8 are fixed in the guide shaft joint 7 through the threaded hole, protrude out of a part of the shearing pins and are clamped on inner steps of the upper and lower protection tube adapters 6. The shearing pins 8 shear according to the different diameters, and the shearing force required by shearing the shearing pins is different, when the slurry pressure is increased to a design value, the shearing pins 8 shear, and the inner pipe testing device is pushed forward integrally.
The principles of using the shear horizontal directional drilling geological survey in-hole logging instrument protection device according to the present invention will be briefly described below with reference to fig. 1 to 3 in combination with the above description:
When the horizontal directional drilling is used for detecting the horizontal investigation hole in combination with the comprehensive logging, the device is connected with a drill rod of the horizontal directional drilling, the device is slowly conveyed into the bottom of the hole by a drilling machine, mud flows into the upper protection pipe 3 through the drill rod in the conveying process, flows into the guide shaft 5 from the inside of the upper protection pipe 3, flows out of the mud outlet 11 through the short joint 9, flows into the inner cavity of the lower protection pipe 13, and flows out into the horizontal investigation hole through the drill bit 16.
During the pushing-in process of the drill rod by using the horizontal directional drill, the mud pressure applied by the inner pipe testing device assembly (figure 2) is born by the shear pin 8, so that the mud pressure in the drill rod is controlled to be a certain value during the pushing-in process. When the device is sent to the bottom of a hole, a drill rod is pumped back slightly more than the length of the testing device, the pressure of slurry is increased to a pressure value required by shearing of the shearing pin 8, after the shearing pin 8 is sheared, the testing device is pushed out of the lower protection tube 13 by slurry under the action of the pressure of the slurry, the rear end of a guide shaft is clamped on the inner steps of the upper protection tube adapter 6 and the lower protection tube adapter 6 by the top cap 4, the inner tube testing device combination (figure 2) is ensured not to be pushed out integrally, the comprehensive logging instrument 14 is opened to start the detection in the hole, and the drill rod is slowly pulled out until the detection at the hole opening is completed.
While the invention has been described with respect to specific embodiments thereof, it will be appreciated that the invention is not limited thereto, but is intended to cover modifications and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A shear horizontal directional drilling geological survey downthehole logging instrument protection device, comprising:
the outer tube combination comprises an upper protection tube, a lower protection tube connected with the upper protection tube and a drill bit connected with the lower protection tube;
The inner pipe testing device assembly is positioned in the outer pipe assembly and comprises a guide shaft, a short joint connected with the guide shaft through a guide shaft joint and a testing device connected with the lower end of the short joint, and an upper protection pipe adapter and a lower protection pipe adapter connected with the upper protection pipe and the lower protection pipe are arranged outside the circumference of the guide shaft joint; the upper and lower protection pipe adapter is provided with an inner hole for the guide shaft, the guide shaft adapter and the short connector to pass through; the guide shaft connector is fixedly provided with a shearing pin which can be clamped in the upper and lower protection pipe adapter;
The testing device comprises a logging instrument connected with the short joint and a logging instrument protection head connected to the lower end of the logging instrument;
The surface of the short joint is provided with a blocking head for preventing the whole inner pipe testing device assembly from shrinking into the outer pipe assembly, and the short joint is provided with a slurry outlet at the lower end of the blocking head;
When the drill rod pushing outer tube combination of the horizontal directional drill moves towards the bottom of the investigation hole, mud flows into the guide shaft through the inside of the upper protection tube, flows out of the mud outlet on the short joint through the short joint, flows into the inner cavity of the lower protection tube, and flows out into the investigation hole through the drill bit;
When the drill rod pushing outer tube combination of the horizontal directional drill is sent to the bottom of the investigation hole, the drill rod is pumped back to be larger than the length of the testing device, the mud pressure is increased to a pressure value required by shearing of the shearing pin, after the shearing pin is sheared, under the action of the mud pressure, the testing device is pushed out of the lower protection tube by mud to start detection in the investigation hole;
A threaded hole is formed in the middle of the guide shaft joint, and the shearing pin can be directly fixed in the guide shaft joint through the threaded hole;
the inside of the upper and lower protection tube adapter is provided with a right-angle step for clamping the shearing pin;
The external diameter of the guide shaft is the same as the external diameters of the guide shaft joint and the short joint, and the length of the guide shaft is larger than the total length of the logging instrument and the instrument protection head.
2. The device for protecting a logging instrument in a shear horizontal directional drilling geological survey hole according to claim 1, wherein the top end of the guide shaft is connected with a top cap, and the top cap is provided with a diversion notch which can enable slurry to flow into the guide shaft;
When the inner tube testing device combination is combined by the mud pushing-out outer tube combination, the top cap is clamped on the right-angle step inside the upper and lower protection tube adapter, so that the inner tube testing device combination is not pushed out integrally.
3. The shear horizontal directional drilling geological survey hole logging instrument protection device of claim 1, the well logging cable penetrates out of the guide shaft and the short joint and is connected with the well logging instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964347.3A CN111980678B (en) | 2020-09-15 | 2020-09-15 | Protection device for shear type horizontal directional drilling geological investigation in-hole logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964347.3A CN111980678B (en) | 2020-09-15 | 2020-09-15 | Protection device for shear type horizontal directional drilling geological investigation in-hole logging instrument |
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| CN111980678A CN111980678A (en) | 2020-11-24 |
| CN111980678B true CN111980678B (en) | 2024-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010964347.3A Active CN111980678B (en) | 2020-09-15 | 2020-09-15 | Protection device for shear type horizontal directional drilling geological investigation in-hole logging instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117145452B (en) * | 2023-07-10 | 2024-03-26 | 中国地质大学（武汉） | An upper and lower separate detection instrument protection tube transmission mechanism for deep ground exploration |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212614674U (en) * | 2020-09-15 | 2021-02-26 | 中交第二公路勘察设计研究院有限公司 | Shearing type horizontal directional drilling geological prospecting in-hole logging instrument protection device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294252B1 (en) * | 1987-05-07 | 1992-04-22 | Institut Français du Pétrole | Equipment for a drill string with a side entry sub and method for its use |
| US5927402A (en) * | 1997-02-19 | 1999-07-27 | Schlumberger Technology Corporation | Down hole mud circulation for wireline tools |
| GB9925735D0 (en) * | 1999-10-30 | 1999-12-29 | Reeves Wireline Tech Ltd | Down hole tension/compression device for logging tools |
| CN2744824Y (en) * | 2004-11-08 | 2005-12-07 | 中国地质大学（武汉） | Safety joint for drilling |
| CN201241696Y (en) * | 2008-08-12 | 2009-05-20 | 中国地质科学院探矿工艺研究所 | Geological exploration drilling coal seam gas pressure determinator |
| CN202108501U (en) * | 2011-04-21 | 2012-01-11 | 山东胜利伟业石油工程技术服务有限公司 | Novel storage type logging release system |
| CN202402023U (en) * | 2011-12-29 | 2012-08-29 | 中天启明石油技术有限公司 | Exploring tube system for underground wireless well logging during drilling |
| CN203729977U (en) * | 2014-03-07 | 2014-07-23 | 中国石油化工集团公司 | Emergency safety release device for measurement-while-drilling instruments |
| US11333014B2 (en) * | 2015-07-27 | 2022-05-17 | Halliburton Energy Services, Inc. | Electrical isolation to reduce magnetometer interference |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212614674U (en) * | 2020-09-15 | 2021-02-26 | 中交第二公路勘察设计研究院有限公司 | Shearing type horizontal directional drilling geological prospecting in-hole logging instrument protection device |
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Effective date of registration: 20210121 Address after: 430056 No. 18 Pioneering Road, Wuhan Economic and Technological Development Zone, Hubei Province Applicant after: CCCC SECOND HIGHWAY CONSULTANTS Co.,Ltd. Address before: 430050 498 parrot Avenue, Hanyang District, Wuhan, Hubei Applicant before: WUHAN ZHONGJIA GEOTECHNICAL ENGINEERING Co.,Ltd. |
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