CN112112592A - Conveying device and method for deep well measuring instrument - Google Patents

Conveying device and method for deep well measuring instrument Download PDF

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Publication number
CN112112592A
CN112112592A CN202011109946.3A CN202011109946A CN112112592A CN 112112592 A CN112112592 A CN 112112592A CN 202011109946 A CN202011109946 A CN 202011109946A CN 112112592 A CN112112592 A CN 112112592A
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China
Prior art keywords
instrument
drill bit
bit
working cabin
measuring instrument
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Granted
Application number
CN202011109946.3A
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Chinese (zh)
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CN112112592B (en
Inventor
陈晨
刘昆岩
李曦桐
翟梁皓
朱颖
潘栋彬
钟秀平
沈国军
王亚斐
孟奕龙
李子涵
聂帅帅
马英瑞
刘祥
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Jilin University
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Jilin University
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Priority to CN202011109946.3A priority Critical patent/CN112112592B/en
Publication of CN112112592A publication Critical patent/CN112112592A/en
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Publication of CN112112592B publication Critical patent/CN112112592B/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
    • E21B23/14—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for displacing a cable or cable-operated tool, e.g. for logging or perforating operations in deviated wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

Abstract

The invention discloses a conveying device and a conveying method for a deep well measuring instrument, wherein the conveying device comprises a logging component or at least two logging components connected in series, a drill rod, a screw drilling tool and a front guide drill bit, the logging component comprises a well reversing drill bit, an instrument working cabin and an instrument working cabin fixing device, and the conveying method for the deep well measuring instrument comprises lowering and lifting. The rotary power of the pilot bit is provided by the upper screw drill tool, and the blocked rock blocks encountered in the lowering process are crushed, so that the instrument working cabin is prevented from rotating in the lowering process, and smooth lowering is ensured; the underground measuring instrument is integrated in the instrument working cabin, so that a plurality of instrument working cabins can be simultaneously installed, and the simultaneous measurement can be carried out in well sections at different depths; the reverse well drill bit is in threaded connection with the upper portion of each instrument working cabin fixing device, the whole conveying device is driven to slowly rotate through the drilling machine during lifting, the drill bit slowly rotates to cut and crush collapsed rock blocks, and rapid escaping and lifting of the instrument working cabins are guaranteed.

Description

Conveying device and method for deep well measuring instrument
Technical Field
The invention belongs to the field of geophysical exploration, and particularly relates to a conveying device and method for a deep well measuring instrument.
Background
The logging technology is widely applied to resource exploration and engineering exploration, is also called as geophysical logging, measures the geophysical characteristics such as electrochemical characteristics, conductive characteristics, acoustic characteristics, radioactivity and the like of a borehole wall rock stratum of an open hole well through a measuring instrument, and belongs to one of applied geophysical methods.
With the increase of the drilling depth and the improvement of the logging requirement, the measuring instrument is required to carry out long-time (3-5 years) measurement in a deep well. The construction environment with high pressure and high temperature in the deep well and complex formation of stratum puts special demands on the installation equipment of underground instruments. The safety and reliability of the underground conveying device become important considerations for the stable operation of the logging instrument.
When the measuring instrument is put down into a deep well, accidents such as blocking, scraping and the like can occur in the lowering process due to the roughness of the hole wall or the complex situation in the hole, particularly under the condition of naked eyes. In the long-term working process of the underground measuring instrument, due to the complex and unpredictable factors of the geological structure, the stability of the wall of the open hole of the deep well has high risk and the phenomenon of collapse and block falling easily occurs, so that the measuring instrument or other supporting pipe sections are easily clamped in the well, and the whole measuring system instrument cannot be lifted.
Disclosure of Invention
The invention aims to provide a conveying device and a conveying method for a deep well measuring instrument, which are used for solving the problems that the deep well of the measuring instrument is difficult to lift due to the fact that the deep well of the measuring instrument is lowered, blocked and collapsed during working.
In order to achieve the purpose, the invention adopts the following technical scheme: a deep well measuring instrument transportation device, comprising: the device comprises a logging component or at least two logging components connected in series, a drill rod, a screw drilling tool and a front drill bit, wherein the logging component consists of a reverse well drill bit, an instrument working cabin and an instrument working cabin fixing device; an underground measuring instrument is integrated in the instrument working cabin and is connected with a data processing center on the ground through a cable; the instrument working cabin is fixed on the outer side wall of the instrument working cabin fixing device; the well logging assembly or at least two serially connected well logging assemblies are arranged between the drill rod and the screw drill tool, the drill rod is in threaded connection with the upper end of the anti-well drill bit close to the drill rod and is internally communicated, and the screw drill tool is in threaded connection with the lower end of the instrument working cabin fixing device close to the screw drill tool and is internally communicated; the front guide drill bit and the screw drilling tool are coaxially arranged and are internally communicated, and the front guide drill bit is in threaded connection with the lower part of the screw drilling tool;
wherein the cutting face of the reverse well drill bit faces the drill rod on the upper part of the reverse well drill bit; the pilot drill bit is provided with an upper drill bit cutting surface and a lower drill bit cutting surface which are an upper cutting surface and a lower cutting surface respectively, the two drill bit cutting surfaces face opposite directions, and the drill bit cutting surface positioned above the two drill bit cutting surfaces faces the screw drilling tool.
Furthermore, threaded holes are formed in the upper end and the lower end of the instrument working cabin.
Further, the instrument working chamber fixing device is composed of an instrument working chamber fixing device body and a fixing block arranged on the outer side wall of the instrument working chamber fixing device body, the instrument working chamber fixing device body is of a cylindrical structure with openings at two ends, and connecting threads are arranged at the end parts of two ends of the instrument working chamber fixing device body; the fixing block is provided with a threaded hole, the threaded hole in the fixing block is opposite to the threaded hole in the instrument working cabin, and the threaded hole in the fixing block and the threaded hole in the instrument working cabin penetrate through a bolt to enable the instrument working cabin to be installed to be fixed on the instrument working cabin fixing device.
Furthermore, the raise boring bit is of an integrally formed structure, the raise boring bit comprises a raise boring bit body and cutting units which are uniformly distributed on the circumference around the central shaft of the raise boring bit body, connecting threads are arranged at two ends of the raise boring bit body, and a water gap is formed between any two adjacent cutting units.
Furthermore, the pilot drill bit is composed of a pilot drill bit body and a cutting disc sleeved outside the pilot drill bit body, the pilot drill bit body is of an integrally formed structure, a water gap is reserved in the cutting disc, the number of the cutting discs is two, the two cutting discs are arranged in an up-and-down mode, the cutting surface of the cutting disc positioned above the cutting disc faces upwards and is called an upper cutting surface, and the cutting surface of the cutting disc positioned below the cutting disc faces downwards and is called a lower cutting surface.
The method for conveying the downhole measuring instrument by using the deep well measuring instrument conveying device comprises the following steps:
firstly, assembling the deep well measuring instrument conveying device on the ground;
step two, hanging the assembled deep well measuring instrument conveying device through a derrick, and lowering the deep well measuring instrument conveying device into a well hole; opening a slurry pump, injecting slurry into the drill rod, enabling the slurry to flow through the conveying device of the deep well measuring instrument, enabling the slurry to flow out through a front guide drill bit and then return to the ground from a gap between the conveying device of the deep well measuring instrument and the hole wall of the well hole, and completing positive circulation, so that the screw drilling tool and the front guide drill bit are driven to rotate in a single-action manner, and a blockage encountered in the process of crushing and putting down through a lower cutting face of the front guide drill bit;
step three, continuously lowering the deep well measuring instrument conveying device in a mode of continuously connecting the drill rod, stopping lowering when the instrument working cabin is lowered to a specified measuring area, closing a slurry pump, starting working of the underground measuring instrument in the instrument working cabin at the moment, and transmitting data measured by the underground measuring instrument to a data processing center through a cable;
and fourthly, when the measurement is finished or the working cabin of the instrument needs to be lifted in an emergency, the drill rod is clamped by a chuck of a drilling machine positioned on the ground surface, the drill rod is driven to further drive the whole conveying device of the deep well measuring instrument to rotate and pull up, at the moment, the raise bit and the front drill bit rotate together, the cutting face of the raise bit rotates to break the falling blocks and the collapse rock blocks on the upper hole wall, the upper cutting face of the front drill bit breaks the falling blocks and the collapse rock blocks on the lower part of the raise bit, and the lifting action is finished.
Through the design scheme, the invention can bring the following beneficial effects:
1. according to the conveying device and the conveying method for the deep well measuring instrument, the front guide drill bit is installed at the tail part of the whole conveying device, the rotary power is provided by the upper screw drill tool, and blocking rock blocks encountered in the lowering process are crushed, so that the rotation of an instrument working cabin in the lowering process is avoided, and the smooth lowering of the instrument working cabin is ensured;
2. the measuring instrument is integrated in the instrument working cabin and is arranged on the instrument working cabin fixing device, the instrument working cabin fixing device is connected with the upper device through threads, the multiple instrument working cabins can be simultaneously arranged, simultaneous measurement can be carried out on well sections at different depths, and measurement data are larger and more accurate;
3. the upper part of each instrument working cabin fixing device is in threaded connection with a raise bit, a drilling machine passing through an orifice drives the whole deep well measuring instrument conveying device to rotate and pull up when the instrument working cabin fixing device is lifted, and the raise bit slowly rotates at the moment, so that the cutting and crushing of collapsed rock blocks by the drill bit are realized, and the rapid trap-free lifting of the instrument working cabin internally integrated with the underground measuring instrument is guaranteed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation and are not intended to limit the invention in any way, and in which:
FIG. 1 is a schematic view of the lowering of a deep well measuring instrument conveying device in the embodiment of the invention;
FIG. 2 is a schematic diagram of the lifting of the deep well measuring instrument conveying device according to the embodiment of the present invention;
FIG. 3 is a front view of a raise boring bit according to an embodiment of the present invention;
FIG. 4 is an oblique view of a raise boring bit according to an embodiment of the present invention;
FIG. 5 is a front view of a pilot bit according to an embodiment of the present invention;
FIG. 6 is an oblique view of a pilot bit according to an embodiment of the present invention;
FIG. 7 is a front view of an instrument pod securing apparatus according to an embodiment of the present invention;
FIG. 8 is an oblique view of the instrument pod securing apparatus in an embodiment of the present invention.
The respective symbols in the figure are as follows: 1-a derrick; 2-a drilling machine; 3-a slurry pump; 4-a data processing center; 5-a wellbore; 6-a raise bit; 7-instrument working cabin; 8-a cable; 9-a drill rod; 10-instrument work chamber fixing device; 11-a screw drill; 12-a pilot bit; 13-fixing block; 601-raise boring bit body; 602-a cutting unit; 603-water gap; 1201-pilot bit body; 1202-cutting disk.
Detailed Description
In order to clearly understand the technical solutions, purposes and effects of the present invention, the technical solutions in the embodiments of the present invention will now be described clearly and completely with reference to the specific embodiments illustrated in the accompanying drawings. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The invention provides a conveying device for a deep well measuring instrument, which comprises: the device comprises a logging component or at least two logging components connected in series, a drill rod 9, a screw drilling tool 11 and a pilot bit 12, wherein the logging component consists of a raise boring bit 6, an instrument working cabin 7 and an instrument working cabin fixing device 10, the raise boring bit 6 and the instrument working cabin fixing device 10 are coaxially arranged and are communicated with each other, and the lower end of the raise boring bit 6 is in threaded connection with the upper end of the instrument working cabin fixing device 10; an underground measuring instrument is integrated in the instrument working cabin 7 and is connected with the data processing center 4 on the ground through a cable 8; the instrument working chamber 7 is fixed on the outer side wall of the instrument working chamber fixing device 10; a logging component or at least two serially connected logging components are arranged between a drill rod 9 and a screw drill 11, the drill rod 9 is in threaded connection with the upper end of the anti-well drill 6 close to the drill rod and is internally communicated, and the screw drill 11 is in threaded connection with the lower end of the instrument working cabin fixing device 10 close to the screw drill and is internally communicated; the front guide drill bit 12 and the screw drill 11 are coaxially arranged and are communicated with each other inside, and the front guide drill bit 12 is connected to the lower part of the screw drill 11 in a threaded mode;
wherein the bit cutting face of the raise bit 6 faces the drill rod 9 located at the upper part thereof; the pilot bit 12 has upper and lower bit cutting faces, which are an upper cutting face and a lower cutting face, respectively, and the two bit cutting faces face opposite directions, and the bit cutting face located above faces the screw drill 11.
The conveying device of the deep well measuring instrument can be applied to measurement of one measuring well section, and can also be used for simultaneous measurement of multiple well sections in well sections with different depths, and the conveying device of the deep well measuring instrument is applied to measurement of one measuring well section and adopts a logging component; the conveying device of the deep well measuring instrument is applied to multi-well section measurement at different depths and adopts at least two logging components which are connected in series.
The following embodiments of the invention are described with respect to a measurement interval:
as shown in fig. 1 and 2, the conveying device for the deep well measuring instrument comprises a raise boring bit 6, an instrument working chamber 7, a drill rod 9, an instrument working chamber fixing device 10, a screw drilling tool 11 and a pilot boring bit 12, wherein the drill rod 9, the raise boring bit 6, the instrument working chamber fixing device 10, the screw drilling tool 11 and the pilot boring bit 12 are sequentially connected in a threaded manner from top to bottom and are internally communicated.
In order to protect the measuring instrument, the underground measuring instrument is integrated in an instrument working cabin 7, the instrument working cabin 7 is a metal cabin body, an anti-corrosion layer is coated on the surface layer of the metal cabin body, and threaded holes are formed in the upper end and the lower end of the instrument working cabin 7 and can be conveniently fixed on an instrument working cabin fixing device 10.
As shown in fig. 7 and 8, the instrument work chamber fixing device 10 is composed of an instrument work chamber fixing device body and a fixing block 13 arranged on the outer side wall of the instrument work chamber fixing device body, the instrument work chamber fixing device body is of a cylindrical structure with two open ends, and connecting threads are arranged at the two end parts of the instrument work chamber fixing device body; the fixing block 13 is provided with a threaded hole, the instrument working cabin 7 is placed between the fixing blocks 13 which are arranged up and down, the threaded hole in the fixing block 13 is opposite to the threaded hole in the instrument working cabin 7, and the threaded hole in the fixing block 13 and the threaded hole in the instrument working cabin 7 are penetrated through a bolt to fix the instrument working cabin 7 to be installed on the instrument working cabin fixing device 10.
The cutting surface of the reverse well drill bit 6 faces the drill rod 9 on the upper part of the reverse well drill bit, the drill rod 9 is clamped by the chuck of the drilling machine 2 on the ground surface to drive the drill rod 9, and then the reverse well drill bit 6 is driven to rotate to realize rotary lifting.
As shown in fig. 3 and 4, the raise boring bit 6 is an integrally formed structure, the raise boring bit 6 is composed of a raise boring bit body 601 and cutting units 602 uniformly distributed circumferentially around a central axis of the raise boring bit body 602, connecting threads are provided at two ends of the raise boring bit body 601, and a water gap 603 is provided between any two adjacent cutting units 602.
The screw drill 11 is driven by positive circulation of drilling fluid, i.e. mud in the present invention.
The upper end of the front guide drill bit 12 is provided with threads, the front guide drill bit 12 is connected below the screw drill 11 through threads, the front guide drill bit 12 is provided with an upper drill bit cutting surface and a lower drill bit cutting surface, the front guide drill bit 12 is driven through the screw drill 11 to realize single action, the screw drill 11 is a downhole power drill, the front guide drill bit 12 is driven to rotate underground by means of drilling fluid, and the drilling machine 2 is not driven, so that the drill rod 9 above the screw drill 11 does not rotate, and the front guide drill bit 12 at the lower part realizes single action rotation.
As shown in fig. 5 and 6, the pilot bit 12 is composed of a pilot bit body 1201 and two cutting discs 1202 sleeved outside the pilot bit body 1201, the pilot bit body 1201 is of an integrally formed structure, a water gap is reserved on each cutting disc 1202, the two cutting discs 1202 are arranged up and down, the cutting surface of the cutting disc 1202 located above is upward and is called an upper cutting surface, and the cutting surface of the cutting disc 1202 located below is downward and is called a lower cutting surface.
The method for conveying the underground measuring instrument by adopting the conveying device for the deep-well measuring instrument comprises the following specific processes:
lowering the deep well measuring instrument conveying device:
assembling a deep well measuring instrument conveying device on the ground, installing an instrument working cabin 7 between fixing blocks 13 of an instrument working cabin fixing device 10, connecting the instrument working cabin 7 and the drilling rod 9 together through bolts, connecting one end of a raise boring bit 6 to a drill rod 9 through threads, connecting the other end of the raise boring bit 6 to the instrument working cabin fixing device 10 through threads, and connecting one end, far away from the raise boring bit 6, of the instrument working cabin fixing device 10 to a screw drilling tool 11 through threads; one end of the screw drill 11, which is far away from the instrument working cabin fixing device 10, is in threaded connection with a pilot bit 12;
the method comprises the following steps of suspending an installed deep well measuring instrument conveying device through a derrick 1, starting to lower the deep well measuring instrument conveying device, opening a slurry pump 3, driving slurry to circulate through the slurry pump 3, injecting slurry into a drill rod 9, enabling the slurry to flow through the interior of the deep well measuring instrument conveying device, enabling the slurry to flow out through a front guide drill bit 12 and then return to the ground from a gap between the deep well measuring instrument conveying device and the hole wall of a well hole 5, completing positive circulation, driving a screw drilling tool 11 and the front guide drill bit 12 to rotate in a single action mode, and breaking a blockage encountered in the lowering process through a lower cutting surface of the front guide;
the deep well measuring instrument conveying device is continuously lowered in a mode of continuously connecting the drill rod 9, when the instrument working cabin 7 is lowered to a specified measuring area, lowering is stopped, the slurry pump 3 is closed, slurry stops circulating, at the moment, the underground measuring instrument in the instrument working cabin 7 starts to work, and data measured by the underground measuring instrument are transmitted to the data processing center 4 through the cable 8 to be analyzed.
Lifting the deep well measuring instrument conveying device:
when the measurement is finished or an irresistible force factor is met, the instrument working cabin 7 needs to be lifted, the whole deep well measuring instrument conveying device is driven to rotate and pull up through the drilling machine 2 located at the hole opening, at the moment, the raise bit 6 and the front guide bit 12 rotate together, the bit cutting surface of the raise bit 6 rotates to break falling blocks and collapse rock blocks on the upper hole wall, the upper cutting surface of the front guide bit 12 breaks falling blocks and collapse rock blocks on the lower portion of the raise bit 6, and the smooth lifting is guaranteed together.
Further, since the slurry is used for driving the screw drill 11 without carrying rock powder, the slurry can use clean water, during the lowering process, the screw drill 11 and the front guide drill bit 12 rotate independently, and the upper device does not rotate, so that the instrument is protected.
Furthermore, the raise boring bit 6 is provided with a water gap 603, and the cable 8 passes through the water gap 603 of the raise boring bit 6 to play a limiting role and prevent the cable 8 from winding the drill rod 9.

Claims (6)

1. A deep well measuring instrument transportation device, comprising: the device comprises a logging component or at least two logging components connected in series, a drill rod (9), a screw drilling tool (11) and a pilot drill bit (12), wherein the logging component consists of a reverse well drill bit (6), an instrument working cabin (7) and an instrument working cabin fixing device (10), the reverse well drill bit (6) and the instrument working cabin fixing device (10) are coaxially arranged and are internally communicated, and the lower end of the reverse well drill bit (6) is in threaded connection with the upper end of the instrument working cabin fixing device (10); an underground measuring instrument is integrated in the instrument working cabin (7), and the underground measuring instrument is connected with a data processing center (4) on the ground through a cable (8); the instrument working chamber (7) is fixed on the outer side wall of the instrument working chamber fixing device (10); the well logging assembly or at least two well logging assemblies connected in series are arranged between a drill rod (9) and a screw drill (11), the drill rod (9) is in threaded connection with the upper end of a reverse well drill bit (6) close to the drill rod and is internally communicated, and the screw drill (11) is in threaded connection with the lower end of an instrument working cabin fixing device (10) close to the screw drill bit and is internally communicated; the front guide drill bit (12) and the screw drilling tool (11) are coaxially arranged and are communicated with each other, and the front guide drill bit (12) is connected to the lower part of the screw drilling tool (11) in a threaded mode;
wherein the cutting face of the reverse well drill bit (6) faces the drill rod (9) on the upper part of the reverse well drill bit; the pilot bit (12) has upper and lower bit cutting faces, which are upper and lower cutting faces, respectively, and the two bit cutting faces face in opposite directions, and the bit cutting face located above faces the screw drill (11).
2. The deep well measuring instrument transportation device according to claim 1, wherein: and threaded holes are formed in the upper end and the lower end of the instrument working cabin (7).
3. The deep well measuring instrument transportation device according to claim 2, wherein: the instrument working cabin fixing device (10) is composed of an instrument working cabin fixing device body and a fixing block (13) arranged on the outer side wall of the instrument working cabin fixing device body, the instrument working cabin fixing device body is of a cylindrical structure with openings at two ends, and connecting threads are arranged at the end parts of two ends of the instrument working cabin fixing device body; threaded holes are formed in the fixing block (13), threaded holes in the fixing block (13) are opposite to threaded holes in the instrument working cabin (7), and the threaded holes in the fixing block (13) and the threaded holes in the instrument working cabin (7) are penetrated through bolts to enable the instrument working cabin (7) to be installed to be fixed on the instrument working cabin fixing device (10).
4. The deep well measuring instrument transportation device according to claim 1, wherein: the anti-well drill bit (6) is of an integrally formed structure, the anti-well drill bit (6) is composed of an anti-well drill bit body (601) and cutting units (602) which are uniformly distributed on the circumference around the central shaft of the anti-well drill bit body (602), connecting threads are arranged at two ends of the anti-well drill bit body (601), and a water gap (603) is formed between any two adjacent cutting units (602).
5. The deep well measuring instrument transportation device according to claim 1, wherein: the pilot drill bit (12) is composed of a pilot drill bit body (1201) and cutting discs (1202) sleeved outside the pilot drill bit body (1201), the pilot drill bit body (1201) is of an integrally formed structure, water gaps are reserved on the cutting discs (1202), the number of the cutting discs (1202) is two, the two cutting discs (1202) are arranged up and down, the cutting face of the cutting disc (1202) located above faces upwards and is called an upper cutting face, and the cutting face of the cutting disc (1202) located below faces downwards and is called a lower cutting face.
6. A method of transporting a downhole surveying instrument using the deep well surveying instrument transportation device according to any one of claims 1 to 5, the method comprising the steps of:
firstly, assembling the deep well measuring instrument conveying device on the ground;
step two, the assembled deep well measuring instrument conveying device is hung through the derrick (1), and the deep well measuring instrument conveying device is lowered into the well hole (5); the mud pump (3) is started, mud is injected into the drill rod (9), flows through the conveying device of the deep well measuring instrument, flows out through the front guide drill bit (12), and returns to the ground from the hole wall gap between the conveying device of the deep well measuring instrument and the well hole (5) to complete positive circulation, so that the screw drilling tool (11) and the front guide drill bit (12) are driven to rotate in a single-action mode, and a blockage encountered in the downward moving process is crushed through the lower cutting surface of the front guide drill bit (12);
thirdly, continuously lowering the deep well measuring instrument conveying device in a mode of continuously connecting the drill rod (9), stopping lowering when the instrument working cabin (7) is lowered to a specified measuring area, closing the slurry pump (3), starting working of the underground measuring instrument in the instrument working cabin (7) at the moment, and transmitting data measured by the underground measuring instrument to the data processing center (4) through a cable (8);
and fourthly, when the measurement is finished or the instrument working cabin (7) needs to be lifted in an emergency, the drill rod (9) is clamped through a chuck of the drilling machine (2) positioned on the ground surface, the drill rod (9) is driven to further drive the whole conveying device of the deep well measuring instrument to rotate and pull up, at the moment, the raise bit (6) and the front guide bit (12) rotate together, the bit cutting surface of the raise bit (6) rotates to break the falling blocks and the collapse rock blocks on the upper hole wall, the upper cutting surface of the front guide bit (12) breaks the falling blocks and the collapse rock blocks on the lower part of the raise bit (6), and the lifting action is finished.
CN202011109946.3A 2020-10-16 2020-10-16 Conveying device and method for deep well measuring instrument Active CN112112592B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112832831A (en) * 2021-01-05 2021-05-25 湘潭大学 Deep well excavation safety engineering management is prevented collapsing and is used protection machanism
CN114293939A (en) * 2021-12-29 2022-04-08 河北永明地质工程机械有限公司 Core drilling machine

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