CN213330898U - Testing device in geological exploration hole of slurry pressure feed type horizontal directional drilling engineering - Google Patents
Testing device in geological exploration hole of slurry pressure feed type horizontal directional drilling engineering Download PDFInfo
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- CN213330898U CN213330898U CN202022277800.1U CN202022277800U CN213330898U CN 213330898 U CN213330898 U CN 213330898U CN 202022277800 U CN202022277800 U CN 202022277800U CN 213330898 U CN213330898 U CN 213330898U
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Abstract
The utility model discloses a slurry pressure feed type horizontal directional drilling engineering geological exploration hole internal testing device, which comprises a drilling tool, wherein the drilling tool comprises a double-wall drilling rod, and the double-wall drilling rod is provided with an outer wall and an inner wall which is coaxial with the outer wall and is arranged at intervals; the testing device integral mechanism is positioned in the inner cavity of the double-wall drill rod and comprises a central rod and a testing device connected to the bottom end of the central rod through a bearing; the sealing pressure feeding mechanism is positioned between the inner wall of the double-wall drill rod and the central rod; the in-place reporting mechanism is positioned between the inner wall of the double-wall drill rod and the central rod and is arranged adjacent to the sealing pressure feeding mechanism, and comprises a suspension seat ring fixedly connected with the inner wall of the double-wall drill rod and a valve plug connected with the suspension seat ring through a spring pin. The utility model discloses simple structure, reasonable in design can accomplish the downthehole test under the condition that the directional reconnaissance hole of level did not carry the brill, utilizes the whole bottom of hole of reacing of mud pressure pusher to test.
Description
Technical Field
The utility model relates to a technical field of horizontal directional drilling engineering geology reconnaissance equipment especially relates to a mud forced lubrication formula horizontal directional drilling engineering geology reconnaissance downthehole testing arrangement.
Background
At present, along with the development requirement of engineering geological exploration of mountain tunnels in high-altitude areas, the engineering geological exploration is not limited to vertical holes, and is expanded to horizontal directional holes. The traditional vertical hole internal testing device cannot be directly applied to a horizontal hole, and has the following problems:
(1) the safety of the instrument in the process of the drill feeding test cannot be ensured when the test instrument is directly connected to the front end of the drill rod;
(2) horizontal drilling is generally long, and a great deal of time is consumed for testing tripping and threading in a drill rod of a testing instrument.
Therefore, it is necessary to provide a testing device in a geological exploration hole of a slurry pressure-feed type horizontal directional drilling engineering, which solves the problem that the traditional testing device in a vertical hole cannot be directly applied to a horizontal hole.
SUMMERY OF THE UTILITY MODEL
Based on the not enough of prior art existence, the utility model aims to solve the technical problem that a mud pressure feed formula level directional drilling engineering geology reconnaissance is downthehole testing arrangement is provided, simple structure, reasonable in design can accomplish downthehole test under the condition that the directional reconnaissance hole of level did not carry the brill, utilizes mud pressure pusher to wholly arrive the hole bottom and tests.
In order to achieve the purpose, the utility model adopts the following technical measures:
a testing device in a geological exploration hole of a slurry pressure-feed type horizontal directional drilling engineering comprises a drilling tool, a drilling tool and a control device, wherein the drilling tool comprises a double-wall drilling rod, and the double-wall drilling rod is provided with an outer wall and an inner wall which is coaxial with the outer wall and is arranged at intervals; the testing device integral mechanism is positioned in the inner cavity of the double-wall drill rod and comprises a central rod and a testing device connected to the bottom end of the central rod through a bearing; the sealing pressure feeding mechanism is positioned between the inner wall of the double-wall drill rod and the central rod; the in-place reporting mechanism is positioned between the inner wall of the double-wall drill rod and the central rod and is arranged adjacent to the sealing pressure feeding mechanism, and comprises a suspension seat ring fixedly connected with the inner wall of the double-wall drill rod and a valve plug connected with the suspension seat ring through a spring pin; the double-wall drill rod is provided with a first water gap, a second water gap and a third water gap which are communicated with a gap between an inner cavity and an inner wall and an outer wall of the double-wall drill rod, the first water gap is positioned above the sealing pressure feeding mechanism, and the second water gap and the third water gap are respectively positioned above and below the valve plug; the slurry is pressurized and conveyed to a testing position by applying pressure to the sealing pressure conveying mechanism, the slurry enters a gap between the inner wall and the outer wall of the double-wall drill rod through the first water port, then enters the top flushing valve plug through the second water port, and then enters the gap of the double-wall drill rod through the third water port, the slurry pressure rises firstly and then falls in the whole process, and the testing is started after the testing device is in place.
Preferably, the whole mechanism of the testing device further comprises a fishing spear head connected to the top end of the central rod and used for matching with the fishing device to take out the whole testing device from the drill hole after the testing is finished.
Further, the sealing pressure feeding mechanism comprises two sealing clamping plates and a sealing gasket positioned between the two sealing clamping plates, and is used for pressure feeding the testing device by pumping slurry; the lower sealing jaw rests against the suspension seat ring.
Optionally, the inside of the central rod is provided with a comprehensive cable groove for penetrating a comprehensive cable of the test instrument; and a sealing cap for preventing water is arranged at the upper end of the comprehensive cable groove.
Further, the top of the double-wall drill rod is connected with a single-wall drill rod through a joint thread.
Optionally, the bottom of the double-wall drill rod is connected with a drill bit, and a centralizing ring is arranged inside the double-wall drill rod and close to the bottom of the double-wall drill rod.
Furthermore, the lower part of the testing device is connected with a conical head for discharging the obstacles at the front end of the drill bit.
By last, the utility model discloses an in-hole testing arrangement of mud forced induction formula horizontal directional drilling engineering geology reconnaissance, simple structure can accomplish the in-hole test under the condition that the directional reconnaissance hole of level did not carry the brill, utilizes the whole bottom of hole of reacing of mud pressure pusher to test, can utilize fishing device cooperation to drag for spearhead remove device whole after the test is accomplished, can satisfy the downthehole relevant test work in directional reconnaissance hole of level well.
Drawings
Fig. 1 is a schematic structural diagram of the device for testing in a geological exploration hole of a slurry pressure-feed type horizontal directional drilling engineering according to the preferred embodiment of the invention.
Wherein: 1-single-wall drill pipe, 2-spearhead fishing, 3-joint, 4-double-wall drill pipe, 5-comprehensive cable, 6-sealing cap, 7-first water gap, 8-sealing splint, 9-sealing gasket, 10-hanging seat ring, 11-comprehensive cable groove, 12-spring pin, 13-second water gap, 14-valve plug, 15-third water gap, 16-center rod, 17-centralizing ring, 18-drill bit, 19-bearing, 20-testing device and 21-conical head.
Detailed Description
The device for testing in the geological exploration hole of the slurry pressure-feed type horizontal directional drilling engineering of the invention is described in detail with reference to fig. 1.
As shown in figure 1, the utility model provides a mud forced lubrication formula level directional drilling engineering geological prospecting is downthehole testing arrangement, including drilling tool, sealed forced lubrication mechanism, the newspaper mechanism that targets in place and the whole mechanism of testing arrangement. The drilling tool comprises a single-wall drill rod 1, a double-wall drill rod 4, a centralizing ring 17 and a drill bit 18, wherein the drill bit 18 is connected to the bottom of the double-wall drill rod 4, the centralizing ring 17 is positioned inside the double-wall drill rod 4 and close to the bottom of the double-wall drill rod 4, the single-wall drill rod 1 and the double-wall drill rod 4 are in threaded connection through a connector 3, and the single-wall drill rod 1 is a conventional drill rod for drilling of a horizontal directional drilling.
The sealing pressure feeding mechanism comprises two sealing clamping plates 8 and a sealing gasket 9 positioned between the two sealing clamping plates, and is used for pumping mud pressure feeding testing device 20 through the drill pipe.
The utility model discloses a signal mechanism targets in place is including hanging seat ring 10, first mouth of a river 7, second mouth of a river 13, third mouth of a river 15, valve plug 14, be used for tensile governing valve plug 14 to carry out the spring catch 12 that reciprocates. The in-place signaling mechanism judges whether the device is on the bottom according to the change of the mud pressure when the device reaches the bottom of a drill hole, so that the in-place signaling of the device is realized, the valve plug 14 is connected with the spring pin 12, the mud rushes the top valve plug 14 to realize the up-and-down movement of the valve plug 14, and the water channel is changed to cause the change of the mud pressure.
The utility model discloses a whole mechanism of testing arrangement is including dragging for spearhead 2, synthesizing cable 5, sealed cap 6, synthesizing cable groove 11, well core rod 16, bearing 19, testing arrangement 20 and cone 21, the above-mentioned cone 21 of testing arrangement 20 sub-unit connection for arrange the barrier of the 18 front ends of drill bit in the trompil. The upper end of a central rod 16 of the whole testing device mechanism is provided with the fishing spear head 2 for matching with a fishing device to integrally take out the testing device for drilling after the testing is finished, a comprehensive cable groove 11 is formed in the central rod 16 and used for penetrating a comprehensive cable 5 of a testing instrument, and a sealing cap 6 is arranged at the upper end of the comprehensive cable groove 11 and used for preventing water. The lower part of a central rod 16 of the whole testing device mechanism is connected with a testing device 20 through a bearing 19, so that the testing device 20 is not influenced by factors such as drill rod rotation and the like.
In the following, referring to fig. 1 and combining the above structural description, the working process of the mud pressure-feed type horizontal directional drilling engineering geological prospecting in-hole testing device of the present invention is briefly described:
a. the whole device is connected with a drill rod of a horizontal directional drilling machine, a slurry pump is started to pump slurry into the drill rod, the whole slurry pressure feeding device is used for integrally feeding the slurry into the bottom of a drill hole, when the whole device reaches the bottom of the drill hole, the slurry enters a gap of a double-wall drill rod 4 through a first water port 7, then enters a top flushing valve plug 14 of the drilling tool through a second water port 13, and then enters the gap of the double-wall drill rod 4 through a third water port 15 again, an in-place signaling mechanism plays a role, the slurry pressure rises firstly and then falls in the whole process, and the device starts to;
b. after the test is finished, the fishing device is matched with the fishing spearhead 2 to take out the whole device;
c. and when the test is needed again, the device is integrally installed in the drill rod, and the step a and the step b are repeated until the test is finished.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can understand that the changes or substitutions obtained within the technical scope of the present invention should be covered within the scope of the present invention.
Claims (7)
1. A kind of mud pressure feed type level directional drilling engineering geological prospecting is in the test device, characterized by that, comprising:
a drilling tool comprising a double-walled drill rod having an outer wall and an inner wall coaxial with and spaced from the outer wall;
the testing device integral mechanism is positioned in the inner cavity of the double-wall drill rod and comprises a central rod and a testing device connected to the bottom end of the central rod through a bearing;
the sealing pressure feeding mechanism is positioned between the inner wall of the double-wall drill rod and the central rod;
the in-place reporting mechanism is positioned between the inner wall of the double-wall drill rod and the central rod and is arranged adjacent to the sealing pressure feeding mechanism, and comprises a suspension seat ring fixedly connected with the inner wall of the double-wall drill rod and a valve plug connected with the suspension seat ring through a spring pin;
and the double-wall drill rod is provided with a first water gap, a second water gap and a third water gap which are communicated with a gap between an inner cavity and an inner wall and an outer wall of the double-wall drill rod, the first water gap is positioned above the sealing pressure feeding mechanism, and the second water gap and the third water gap are respectively positioned above and below the valve plug.
2. The apparatus of claim 1, wherein the testing apparatus comprises a fishing spear connected to a top end of the central rod, and the fishing spear is adapted to be used to pull the testing apparatus out of the borehole after the testing is completed.
3. The apparatus as claimed in claim 1, wherein the sealing pressure-feeding mechanism comprises two sealing clamping plates and a sealing pad therebetween, for pressure-feeding the apparatus by pumping slurry;
the lower sealing jaw rests against the suspension seat ring.
4. The apparatus as claimed in claim 1, wherein the center rod has an integrated cable slot for inserting an integrated cable of a testing instrument; and a sealing cap for preventing water is arranged at the upper end of the comprehensive cable groove.
5. The apparatus as claimed in claim 1, wherein the top of the double-walled drill pipe is connected with a single-walled drill pipe through a joint screw thread.
6. The apparatus as claimed in claim 1, wherein the drill bit is connected to the bottom of the double-wall drill rod, and the inner part of the double-wall drill rod is provided with a centering ring near the bottom.
7. The apparatus as claimed in claim 6, wherein the lower part of the apparatus is connected to a cone for removing the obstacle at the front end of the drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022277800.1U CN213330898U (en) | 2020-10-14 | 2020-10-14 | Testing device in geological exploration hole of slurry pressure feed type horizontal directional drilling engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022277800.1U CN213330898U (en) | 2020-10-14 | 2020-10-14 | Testing device in geological exploration hole of slurry pressure feed type horizontal directional drilling engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213330898U true CN213330898U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022277800.1U Active CN213330898U (en) | 2020-10-14 | 2020-10-14 | Testing device in geological exploration hole of slurry pressure feed type horizontal directional drilling engineering |
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| CN (1) | CN213330898U (en) |
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- 2020-10-14 CN CN202022277800.1U patent/CN213330898U/en active Active
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