CN114508344A - Underground coal mine multi-channel measurement while drilling geological guiding system and construction method - Google Patents
Underground coal mine multi-channel measurement while drilling geological guiding system and construction method Download PDFInfo
- Publication number
- CN114508344A CN114508344A CN202210113152.7A CN202210113152A CN114508344A CN 114508344 A CN114508344 A CN 114508344A CN 202210113152 A CN202210113152 A CN 202210113152A CN 114508344 A CN114508344 A CN 114508344A
- Authority
- CN
- China
- Prior art keywords
- drilling
- transmission unit
- unit
- signal
- measurement
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 151
- 239000003245 coal Substances 0.000 title claims abstract description 95
- 238000005259 measurement Methods 0.000 title claims abstract description 85
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 110
- 230000008054 signal transmission Effects 0.000 claims abstract description 48
- 239000002002 slurry Substances 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims description 32
- 238000011010 flushing procedure Methods 0.000 claims description 26
- 238000010248 power generation Methods 0.000 claims description 17
- 238000004146 energy storage Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/126—Rotors for essentially axial flow, e.g. for propeller turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/13—Kind or type mixed, e.g. two-phase fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Acoustics & Sound (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a coal mine underground multichannel measurement while drilling geosteering system and a construction method, wherein the system comprises an in-hole device and an orifice device, wherein the in-hole device comprises a control unit, and an insulating short section, a geological measurement unit, an electromagnetic wave transmission unit, a slurry pulse transmission unit, a wired transmission unit and a drill rod power supply unit which are connected with the control unit; the orifice device comprises a pressure monitor, a signal receiving electrode, a display and a signal transmission line; the geological measurement unit, the control unit, the electromagnetic wave transmission unit, the mud pulse transmission unit, the wired transmission unit and the drill rod power supply unit are all arranged in a non-magnetic drill rod of the drilling tool system; the pressure monitor is arranged at the liquid outlet of the slurry pump, and the signal receiving electrode is arranged in the coal wall of the hole. The invention obviously improves the transmission stability of the measurement while drilling signal in the deep hole drilling. Meanwhile, the drilling track adjusting speed is high in the deep hole drilling process. The top and bottom plates of the coal seam are not required to be detected by opening branches, the drilling efficiency is obviously improved, and the construction risk is low.
Description
Technical Field
The invention belongs to the field of underground coal mine underground tunnel drilling, and particularly relates to a coal mine underground multichannel measurement while drilling geosteering system and a construction method.
Background
Directional drilling along the coal seam is one of effective technical approaches for coal seam gas extraction. At present, the colliery is in the pit mainly adopts wired measurement while drilling system to carry out along with the directional drilling construction of coal seam, and in order to guarantee that the drilling track extends in the coal seam, it needs every suitable distance to open the branch to the coal seam roof bottom plate in order to predict the coal seam boundary to creep into the in-process, and this drilling construction technique has several problems: firstly, the wired measurement while drilling signal transmission reliability in deep hole drilling is low, and the application in deep hole drilling is limited; and secondly, the complex degree of drilling can be increased by opening branches to the top floor of the coal seam to detect the boundary of the coal seam, the construction risk is improved, and the drilling efficiency is reduced.
Therefore, in view of the defects, designers of the invention study and design a coal mine underground multichannel measurement-while-drilling geosteering system and a using method thereof by intensively studying and designing experience and achievement of relevant industries and aiming at the defects of directional drilling along a coal seam in construction of a wired measurement-while-drilling system, so as to overcome the defects.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a coal mine underground multichannel measurement while drilling geological guide system and a construction method, and aims to solve the technical problems that when a wired measurement while drilling system is used for directional drilling construction along a coal seam, the stability of signal transmission in deep hole drilling is poor, the construction risk can be improved and the drilling efficiency can be reduced due to the operation of opening a branch top and a bottom plate.
In order to achieve the purpose, the invention adopts the following technical scheme to solve the problem:
a coal mine underground multichannel measurement while drilling geosteering system comprises an in-hole device and an orifice device, wherein the in-hole device comprises a control unit, and an insulating short section, a geological measurement unit, an electromagnetic wave transmission unit, a slurry pulse transmission unit, a wired transmission unit and a drill rod power supply unit which are connected with the control unit; the orifice device comprises a pressure monitor, a signal receiving electrode, a display and a signal transmission line; the geological measurement unit, the control unit, the electromagnetic wave transmission unit, the mud pulse transmission unit, the wired transmission unit and the drill rod power supply unit are all arranged in a non-magnetic drill rod of the drilling tool system; the pressure monitor is arranged at a liquid outlet of the slurry pump, is connected with the display through a signal transmission line, and receives a slurry pulse signal sent by the slurry pulse transmission unit and sends the slurry pulse signal to the display; the signal receiving electrode is arranged in the coal wall of the orifice, two ends of the signal transmission line are respectively connected with the signal receiving electrode and the central cable drill rod, and two ends form an electromagnetic wave signal receiving terminal for receiving an electromagnetic wave signal transmitted by the electromagnetic wave transmission unit; the display is connected with a cable in the drill rod of the through cable in the center of the orifice through a signal transmission line so as to receive a wired measurement signal transmitted by the wired transmission unit;
the geological measurement unit comprises a drilling track parameter measurement module and a natural gamma measurement module, wherein the drilling track parameter measurement module is used for measuring drilling track parameters, and the natural gamma measurement module is used for measuring natural gamma information of a coal measure stratum; the geological measurement unit is respectively connected with the mud pulse transmission unit and the wired transmission unit;
the control unit is used for controlling the in-hole parameter measurement, power supply and signal emission modes, monitoring the power supply condition of the display to the in-hole device and monitoring the rotating speed of the in-hole device;
the wired transmission unit transmits wired measurement signals through a wired channel formed by the drill rod power supply unit and the central cable-through drill rod, and transmits drilling track parameters and natural gamma information of the coal measure stratum measured by the geological measurement unit; the wired transmission unit is connected with the central cable and the side wall of the central cable drill rod;
the mud pulse transmission unit is used for transmitting a mud pulse signal and transmitting the drilling track parameters and the natural gamma information of the coal measure stratum measured by the geological measurement unit;
the electromagnetic wave transmission unit utilizes two signal transmitting poles formed by the insulation short section in a blocking way and is used for transmitting electromagnetic wave signals;
the drill rod power supply unit is used for converting hydraulic energy of flushing fluid in the central through cable drill rod into electric energy to supply power to the in-hole device and storing the electric energy when the in-hole device does not need to supply power;
the non-magnetic drill rod is used for providing a non-magnetic measuring environment for the geological measuring unit;
the pressure monitor is used for monitoring the pressure change of a slurry outlet of the slurry pump, receiving a slurry pulse signal transmitted by the slurry pulse transmission unit and transmitting the slurry pulse signal to the display through the signal transmission line.
Furthermore, one end of the signal receiving electrode is inserted into the coal wall at the orifice, the other end of the signal receiving electrode is connected with the display through a signal transmission line, the display is connected with the outer wall of the orifice center cable drill rod through the signal transmission line, and the display can receive the electromagnetic wave signal transmitted by the electromagnetic wave transmission unit by monitoring the voltage between the signal receiving electrode and the outer wall of the orifice center cable drill rod.
Further, the drilling rod power supply unit comprises a shell, and a stator turbine, a rotor turbine, a power generation assembly, a control assembly, an energy storage assembly, a side wall cable and a central wire passing assembly are sequentially installed inside the shell. The inner wall of the stator turbine is uniformly provided with a plurality of guide vanes, and the tangential direction of the guide vanes forms a certain angle with the flow direction of flushing liquid; the rotor turbine is rotatably arranged on the inner wall of the shell through a bearing arranged in the circumferential direction, a plurality of guide vanes are uniformly arranged on the inner wall of the rotor turbine, and a certain angle is formed between the tangential direction of the guide vanes and the flow direction of flushing liquid; the power generation assembly is connected with the rotor turbine through a transmission shaft and is driven to rotate by the rotor turbine so as to generate electric energy; the control assembly is used for monitoring the working state of the power generation assembly; the energy storage assembly is used for storing electric energy; the central wire passing assembly is a cable, and two ends of the central wire passing assembly are respectively connected with the central through cable of the wire transmission unit and the central through cable drill rod; the side wall cable is connected with the central through cable and used for transmitting electric energy to the device in the hole.
Furthermore, the included angle between the tangential direction of the guide vanes of the stator turbine and the flowing direction of the flushing fluid is 20-30 degrees.
Furthermore, the included angle between the tangential direction of the guide vanes of the rotor turbine and the flow direction of the flushing liquid is 40-50 degrees.
Further, the stator turbine is in interference fit with the inner wall of the shell, a bearing arranged in the circumferential direction of the rotor turbine is installed on the inner wall of the shell in a threaded connection mode, the power generation assembly adopts a power generator, and the energy storage assembly adopts a rechargeable battery pack.
On the other hand, the invention provides a construction method for directional drilling along a coal seam by adopting the underground coal mine multi-channel measurement while drilling geosteering system, which comprises the following steps:
step 1: in the drilling process of the near-horizontal directional drilling shallow hole section, a slurry pump is used for pumping flushing fluid into the hole, and a drill rod power supply unit is driven to supply power to a device in the hole; meanwhile, the geological measurement unit measures drilling track parameters and natural gamma information of the coal measure strata in real time, and sends wired measurement signals to the orifice by using the wired transmission unit; the display receives the wired measurement signal through the signal transmission line, processes the wired measurement signal and displays the drilling track parameters and the natural gamma information so as to monitor the relative distance between the drilling track and the coal seam top and bottom plate and keep the drilling track extending in the middle of the coal seam; the shallow hole section is a hole section with stable signal transmission capability of the wired transmission unit;
step 2: the control unit monitors whether the display of the orifice supplies power to the device in the hole in real time, if so, the wired transmission unit is continuously adopted for signal transmission, and real-time monitoring is kept, otherwise, the control unit judges that the deep hole section is entered, the signal transmission capability of the wired transmission unit is not stable enough, and then, the step 3 is entered;
and step 3: the control unit switches the electromagnetic wave transmission unit and the mud pulse transmission unit according to the rotating speed and the rotating speed maintaining time of the drilling machine; the method comprises the following steps: a working mode monitoring circuit of the control unit monitors the rotating speed of the in-hole device in real time, when the monitored rotating speed reaches a rotating speed threshold value A and the monitoring rotating speed retention time reaches a threshold value C, the mud pulse transmission unit is used for transmitting a measuring signal, and the steps are carried out to carry out near-horizontal directional drilling deep hole section construction; and (5) when the monitoring rotating speed reaches the threshold value B and the monitoring rotating speed maintaining time reaches the threshold value C, transmitting a measuring signal by using the electromagnetic wave transmission unit, and performing near-horizontal directional drilling deep hole section construction in the step 5.
Further, in step 3, the rotation speed threshold B is twice the rotation speed threshold a.
Further, the concrete operation of performing near-horizontal directional drilling deep hole section construction in the step 4 is as follows:
in the drilling process of the deep hole section of the nearly horizontal directional drilling, a slurry pump is used for pumping flushing fluid into the hole, a drill rod power supply unit is driven to supply power to a device in the hole, meanwhile, a geological measurement unit measures drilling track parameters and natural gamma information of a coal measure stratum in real time, and a slurry pulse transmission unit is used for sending a slurry pulse signal to an orifice; the pressure monitor receives the mud pulse signal and transmits the mud pulse signal to the display through a signal transmission line to monitor the drilling track; when the natural gamma information of the coal measure strata is adopted to monitor that the drilling track extends in the middle of the coal seam, the slurry pulse transmission unit is continuously used for transmitting the drilling track parameters and the natural gamma information of the coal measure strata; the deep hole section is a hole section which cannot meet the signal transmission requirement due to unstable signals of the wired transmission unit.
Further, the concrete operation of performing near-horizontal directional drilling deep hole section construction in the step 5 is as follows:
in the drilling process of the deep hole section of the nearly horizontal directional drilling, a slurry pump is used for pumping flushing liquid into the hole, a drill rod power supply unit is driven to supply power to a device in the hole, meanwhile, a geological measurement unit measures drilling track parameters and coal measure stratum natural gamma information in real time, and when the coal measure stratum natural gamma information is adopted for monitoring and displaying that the drilling track is close to a coal seam top plate or a coal measure stratum bottom plate, an electromagnetic wave transmission unit is used for transmitting an electromagnetic wave signal to an orifice in real time; the display receives electromagnetic wave signals through a signal transmission line which is connected with the central cable drill rod and the signal receiving electrode, processes the electromagnetic wave signals and then displays the drilling track and natural gamma information in real time so as to monitor the relative distance between the drilling track and the coal seam top and bottom plate; meanwhile, the tool face angle of the screw motor is adjusted, so that the drilling track is adjusted towards the middle of the coal seam.
Compared with the prior art, the invention has the following technical effects:
(1) the transmission stability of measurement signals while drilling in deep hole drilling is obviously improved. In the deep hole drilling process, when the wired signal transmission stability is poor, the wired transmission channel is switched to a wireless transmission channel (electromagnetic waves or mud pulses), so that the stability of measurement signals while drilling in the deep hole drilling process can be ensured.
(2) The drilling track adjusting speed in the deep hole drilling process is high. In the deep hole drilling process, the characteristic that the electromagnetic wave signal transmission speed is faster than mud pulse is utilized, when the drilling track is close to the coal seam top and bottom plate, the electromagnetic wave signal is adopted to transmit the drilling track parameters and the natural gamma information of the coal measure stratum, so that the drilling track is quickly adjusted, and the adjustment speed of the drilling track is high.
(3) The top and bottom plates of the coal seam are not required to be detected by opening branches, the drilling efficiency is obviously improved, and the construction risk is low. Realize multiple mode switching through automatic judgement and can acquire coal measure stratum nature gamma information fast, can monitor the distance of drilling distance coal seam roof bottom plate, guarantee that the drilling orbit extends at coal seam middle part long distance, need not to open branch and survey coal seam roof bottom plate, creep into efficiency and show the improvement and obviously reduced the construction risk.
Drawings
FIG. 1 is a schematic structural diagram of a coal mine underground multi-channel measurement while drilling geosteering system.
Fig. 2 is a schematic structural diagram of a power supply unit of the drill rod.
Fig. 3 is a schematic diagram of a wireless channel switching principle.
The reference numerals in the drawings mean: 1.1-in-hole device, 1.2-orifice device, 1-drill bit, 2-screw motor, 3-insulating short section, 4-geological measurement unit, 5-control unit, 6-electromagnetic wave transmission unit, 7-mud pulse transmission unit, 8-wired transmission unit, 9-non-magnetic drill rod, 10-drill rod power supply unit, 11-central cable drill rod, 12-mud pump, 13-pressure monitor, 14-signal receiving electrode, 15-display, 1, 102, 103-rotor turbine, 104-bearing, 105-power generation component, 106-control component, 107-energy storage component, 108-side wall cable and 109-central wire-passing component.
The invention is further explained below with reference to the drawings and the detailed description.
Detailed Description
As shown in fig. 1, a drilling tool system applied to the coal mine underground multichannel measurement while drilling geosteering system of the present invention includes a drill bit 1, a screw motor 2, a non-magnetic drill rod 9, a central through cable drill rod 11 and a slurry pump 12, which are connected in sequence, and the drilling tool system has a common structure, and all components are products known in the art.
The underground multi-channel measurement while drilling geological guiding system for the coal mine comprises an in-hole device 1.1 and an orifice device 1.2, wherein the in-hole device 1.1 comprises a control unit 5, an insulation short section 3, a geological measurement unit 4, an electromagnetic wave transmission unit 6, a mud pulse transmission unit 7, a wired transmission unit 8 and a drill rod power supply unit 10, which are connected with the control unit; the orifice device 1.2 comprises a pressure monitor 13, a signal receiving electrode 14, a display 15 and signal transmission lines (c) - (c). When the device is applied specifically, the geological measurement unit 4, the control unit 5, the electromagnetic wave transmission unit 6, the slurry pulse transmission unit 7, the wired transmission unit 8 and the drill rod power supply unit 10 are all installed in a non-magnetic drill rod 9 of a drilling tool system; the pressure monitor 13 is arranged at a liquid outlet of the mud pump 12, is connected with the display 15 through a signal transmission line II, and receives a mud pulse signal sent by the mud pulse transmission unit 7 and sends the mud pulse signal to the display 15; the signal receiving electrode 14 is installed in the coal wall of the orifice, two ends of the signal transmission line (c) are respectively connected with the signal receiving electrode 14 and the central cable drill rod 11, and two ends form an electromagnetic wave signal receiving terminal for receiving the electromagnetic wave signal transmitted by the electromagnetic wave transmission unit 6; the display 15 is connected to the cable in the drill pipe 11 through the signal transmission line (r) to receive the wired measurement signal transmitted from the wired transmission unit 8. Wherein:
the geological measurement unit 4 comprises a drilling track parameter measurement module and a natural gamma measurement module, wherein the drilling track parameter measurement module is used for measuring drilling track parameters (including a drilling inclination angle, an azimuth angle and a tool facing angle of the screw motor 2), and the natural gamma measurement module is used for measuring natural gamma information of the coal measure stratum; the geological measurement unit 4 is respectively connected with the electromagnetic wave transmission unit 6, the mud pulse transmission unit 7 and the wired transmission unit 8;
the control unit 5 is used for controlling the in-hole parameter measurement, power supply and signal emission modes, monitoring the power supply condition of the display 15 to the in-hole device 1.1 and monitoring the rotating speed of the in-hole device 1.1;
the wired transmission unit 8 transmits wired measurement signals through a wired channel formed by the drill rod power supply unit 10 and the central cable drill rod 11, and transmits drilling track parameters and natural gamma information of the coal measure stratum measured by the geological measurement unit 4; the wired transmission unit 8 is connected with a central through cable and a side wall of the central through cable drill rod 11;
the mud pulse transmission unit 7 is used for transmitting mud pulse signals and transmitting drilling track parameters and natural gamma information of coal measure strata, which are measured by the geological measurement unit 4;
the electromagnetic wave transmission unit 6 utilizes signal transmitting poles formed by the insulation short section 3 in a blocking mode to transmit electromagnetic wave signals and transmit drilling track parameters and natural gamma information of coal measure strata, which are measured by the geological measurement unit 4;
the drill rod power supply unit 10 is used for converting hydraulic energy of flushing fluid in the central through cable drill rod 11 into electric energy to supply power to the in-hole device 1.1 and storing the electric energy when the in-hole device 1.1 does not need to supply power;
the nonmagnetic drill rod 9 is used for providing a nonmagnetic measuring environment for the geological measuring unit 4;
the pressure monitor 13 is used for monitoring the pressure change of a liquid outlet of the mud pump 12, receiving a mud pulse signal transmitted by the mud pulse transmission unit 7 and transmitting the mud pulse signal to the display 15 through a signal transmission line.
Preferably, one end of the signal receiving electrode 14 is inserted into the coal wall at the orifice, the other end of the signal receiving electrode is connected with the display 15 through the signal transmission line (c), the display 15 is connected with the outer wall of the orifice center cable drill rod 11 through the signal transmission line (c), and the display 15 can receive the electromagnetic wave signal transmitted by the electromagnetic wave transmission unit 6 by monitoring the voltage between the signal receiving electrode 14 and the outer wall of the orifice center cable drill rod 11.
Referring to fig. 2, as a preferred mode of the present invention, the power supply unit 10 for drill pipes comprises a housing 101, and a stator turbine 102, a rotor turbine 103, a power generation assembly 105, a control assembly 106, an energy storage assembly 107, a sidewall cable 108, and a center wire-passing assembly 109 are sequentially installed inside the housing 101. Wherein, the inner wall of the stator turbine 102 is uniformly provided with a plurality of guide vanes, and the included angle between the tangential direction of the guide vanes and the flow direction of the flushing liquid is 20-30 degrees; the rotor turbine 103 is rotatably arranged on the inner wall of the shell 101 through a bearing 104 arranged in the circumferential direction, a plurality of guide vanes are uniformly arranged on the inner wall of the rotor turbine 103, and the included angle between the length tangent of each guide vane and the flow direction of flushing liquid is 40-50 degrees; the power generation assembly 105 is connected with the rotor turbine 103 through a transmission shaft and is driven by the rotor turbine 103 to rotate so as to generate electric energy; the control component 106 is used for monitoring the working state of the power generation component 105 to enable the power generation component to stably supply power; the energy storage assembly 107 is used for storing electric energy; the central wire passing assembly 109 is a cable, and two ends of the cable are respectively connected with the central through cable of the wire transmission unit 8 and the central through cable drill rod 11; the side wall cable 109 is connected to the central through cable for transmitting electrical energy to the in-hole device 1.1.
In the technical scheme, the medium in the mud pump 12 flows through the central through hole of the shell 108 and then flows through the stator turbine 102, and the tangential direction of the guide vanes on the stator turbine 102 forms a certain angle with the flow direction of the flushing liquid, so that the flow direction of the flushing liquid is changed, and the power generation efficiency is improved; the rotor turbine 103 rotates under the flushing liquid flushing, the power generation assembly 105 is driven by the rotor turbine 103 to rotate to generate electric energy, the generated electric energy is sent to the device 1.1 in the hole through the side wall cable 109, and the surplus electric energy is stored for later use by the energy storage assembly 107.
Preferably, the stator turbine 102 is an interference fit with the inner wall of the housing 101. The bearing 104 that the rotor turbine 103 circumference set up adopts threaded connection mode to install in casing 101 inner wall, and the spiro union mode is comparatively firm, does benefit to the stability that keeps rotor turbine 103, and easily replaces when rotor turbine 103 damages. The power generation module 105 employs a generator. The energy storage assembly 107 is a rechargeable battery pack.
The multi-channel measurement while drilling geosteering system for directional drilling construction along the coal bed comprises the following steps:
step 1: in the drilling process of the near-horizontal directional drilling shallow hole section, a slurry pump 12 is used for pumping flushing fluid into the hole, and a drill rod power supply unit 10 is driven to supply power to a device 1.1 in the hole; meanwhile, the geological measurement unit 4 measures drilling track parameters and natural gamma information of the coal measure strata in real time, and sends wired measurement signals to the orifice by using the wired transmission unit 8; the display 15 receives the wired measurement signal through the signal transmission line (r) and displays the drilling trajectory parameters and the natural gamma information after processing the wired measurement signal. The device is used for monitoring the relative distance between the drilling track and the coal seam top and bottom plate and keeping the drilling track extending in the middle of the coal seam. Wherein, the shallow hole section is a hole section with stable signal transmission capability of the wired transmission unit 8.
Step 2: the control unit 5 monitors whether the display 15 of the orifice supplies power to the device 1.1 in the hole in real time, if so, the wired transmission unit 8 is continuously adopted for signal transmission, and real-time monitoring is kept, otherwise, the control unit judges that the deep hole section is entered, the signal transmission capability of the wired transmission unit 8 is not stable enough, and then, the step 3 is entered;
and step 3: the control unit 5 switches the electromagnetic wave transmission unit 6 and the mud pulse transmission unit 7 according to the rotating speed and the rotating speed maintaining time of the drilling machine; the method comprises the following steps: a working mode monitoring circuit of the control unit 5 monitors the rotating speed of the in-hole device 1.1 in real time, and when the monitored rotating speed reaches a rotating speed threshold value A and the monitoring rotating speed maintaining time reaches a threshold value C, a mud pulse transmission unit 7 is used for transmitting a measurement signal, and the step 4 is carried out; when the monitoring rotation speed reaches the threshold value B and the monitoring rotation speed holding time reaches the threshold value C, the measurement signal is transmitted by the electromagnetic wave transmission unit 6, and the process proceeds to step 5.
The rotating speed threshold value A, B and the rotating speed maintaining time threshold value C are arranged, and the rotating speed threshold value B is twice of the rotating speed threshold value A. Preferably, A is 40r/min, B is 80r/min, and C is 30 seconds.
And 4, step 4: in the drilling process of the deep hole section of the nearly horizontal directional drilling, a slurry pump 12 is used for pumping flushing liquid into the hole, a drill rod power supply unit 10 is driven to supply power to a device 1.1 in the hole, meanwhile, a geological measurement unit 4 measures drilling track parameters and natural gamma information of a coal measure stratum in real time, and a slurry pulse transmission unit 7 is used for sending a slurry pulse signal to an orifice. The pressure monitor 13 receives the mud pulse signal and transmits it to the display 15 via signal transmission line (c) to monitor the borehole trajectory. And when the natural gamma information of the coal measure strata is adopted to monitor that the drilling track extends in the middle of the coal seam, the slurry pulse transmission unit 7 is continuously used for transmitting the drilling track parameters and the natural gamma information of the coal measure strata. The deep hole section is a hole section which cannot meet the signal transmission requirement due to unstable signals of the wired transmission unit 8.
And 5: in the process of drilling a deep hole section in a nearly horizontal directional drilling hole, a slurry pump 12 is used for pumping flushing fluid into the hole, a drill rod power supply unit 10 is driven to supply power to an in-hole device 1.1, meanwhile, a geological measurement unit 4 measures drilling track parameters and coal measure stratum natural gamma information in real time, and when the drilling track is monitored and displayed to be close to a coal seam top plate or a coal measure stratum natural gamma information, an electromagnetic wave signal is transmitted to an orifice in real time by an electromagnetic wave transmission unit 6; the display 15 receives electromagnetic wave signals through a signal transmission line connecting the central through cable drill rod 11 and the signal receiving electrode 14, processes the electromagnetic wave signals, and then displays a drilling track and natural gamma information in real time so as to monitor the relative distance between the drilling track and the coal seam roof and floor; meanwhile, the tool face angle of the screw motor 2 is adjusted, so that the drilling track is adjusted towards the middle of the coal seam.
Although the terms downhole device, orifice device, drill bit, screw motor, gap sub, geological measurement unit, control unit, electromagnetic wave transmission unit, mud pulse transmission unit, wired transmission unit, drill pipe power supply unit, non-magnetic drill pipe, central cable-passing drill pipe, mud pump, pressure monitor, signal receiving electrode, display, signal transmission line, drill pipe power supply unit housing, stator turbine, rotor turbine, bearing, power generation assembly, control assembly, energy storage assembly, sidewall cable, central wire-passing assembly, etc. are used more often in the present invention, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.
Claims (10)
1. The underground coal mine multi-channel measurement while drilling geological guiding system is characterized by comprising an in-hole device (1.1) and an orifice device (1.2), wherein the in-hole device (1.1) comprises a control unit (5), and an insulating short section (3), a geological measurement unit (4), an electromagnetic wave transmission unit (6), a slurry pulse transmission unit (7), a wired transmission unit (8) and a drill rod power supply unit (10) which are connected with the control unit; the orifice device (1.2) comprises a pressure monitor (13), a signal receiving electrode (14), a display (15) and signal transmission lines (I-III); the geological measurement unit (4), the control unit (5), the electromagnetic wave transmission unit (6), the mud pulse transmission unit (7), the wired transmission unit (8) and the drill rod power supply unit (10) are all arranged in a non-magnetic drill rod (9) of the drilling tool system; the pressure monitor (13) is arranged at a liquid outlet of the slurry pump (12), is connected with the display (15) through a signal transmission line II, and receives a slurry pulse signal sent by the slurry pulse transmission unit (7) and sends the slurry pulse signal to the display (15); the signal receiving electrode (14) is arranged in the coal wall of the orifice, two ends of the signal transmission line (c) are respectively connected with the signal receiving electrode (14) and the central cable drill rod (11), and two ends form an electromagnetic wave signal receiving terminal for receiving an electromagnetic wave signal transmitted by the electromagnetic wave transmission unit (6); the display (15) is connected with a cable in the drill rod (11) through a signal transmission line (I) so as to receive a wired measurement signal transmitted by the wired transmission unit (8);
the geological measurement unit (4) comprises a drilling track parameter measurement module and a natural gamma measurement module, wherein the drilling track parameter measurement module is used for measuring drilling track parameters, and the natural gamma measurement module is used for measuring natural gamma information of a coal measure stratum; the geological measurement unit (4) is respectively connected with the mud pulse transmission unit (7) and the wired transmission unit (8);
the control unit (5) is used for controlling the in-hole parameter measurement, power supply and signal emission modes, monitoring the power supply condition of the display (15) to the in-hole device (1.1) and monitoring the rotating speed of the in-hole device (1.1);
the wired transmission unit (8) transmits wired measurement signals through a wired channel formed by the drill rod power supply unit (10) and the central cable drill rod (11), and transmits drilling track parameters and natural gamma information of the coal measure stratum measured by the geological measurement unit (4); the wired transmission unit (8) is connected with a central cable and a side wall of the central cable drill rod (11);
the mud pulse transmission unit (7) is used for transmitting a mud pulse signal and transmitting the drilling track parameters and the natural gamma information of the coal measure unit (4);
the electromagnetic wave transmission unit (6) utilizes signal transmitting electrodes formed by blocking the insulating short section (3) to transmit electromagnetic wave signals and transmit drilling track parameters and natural gamma information of coal strata measured by the geological measurement unit (4);
the drill rod power supply unit (10) is used for converting hydraulic energy of flushing fluid in the central cable-through drill rod (11) into electric energy to supply power to the in-hole device (1.1), and storing the electric energy when the in-hole device (1.1) does not need to supply power;
the non-magnetic drill rod (9) is used for providing a non-magnetic measuring environment for the geological measuring unit (4);
the pressure monitor (13) is used for monitoring the pressure change of a liquid outlet of the mud pump (12), receiving a mud pulse signal transmitted by the mud pulse transmission unit (7) and transmitting the mud pulse signal to the display (15) through a signal transmission line.
2. The underground coal mine multi-channel measurement-while-drilling geosteering system of claim 1, wherein one end of the signal receiving electrode (14) is inserted into the coal wall at the orifice, the other end of the signal receiving electrode is connected with the display (15) through the signal transmission line (c), the display (15) is connected with the outer wall of the orifice center cable drill pipe (11) through the signal transmission line (c), and the display (15) can receive the electromagnetic wave signals transmitted by the electromagnetic wave transmission unit (6) by monitoring the voltage between the signal receiving electrode (14) and the outer wall of the orifice center cable drill pipe (11).
3. The underground coal mine multi-channel measurement-while-drilling geological guiding system as claimed in claim 1, wherein the drill rod power supply unit (10) comprises a shell (101), a stator turbine (102), a rotor turbine (103), a power generation assembly (105), a control assembly (106), an energy storage assembly (107), a side wall cable (108) and a central wire passing assembly (109) are sequentially installed in the shell (101), wherein a plurality of guide vanes are uniformly arranged on the inner wall of the stator turbine (102), and the tangential direction of the guide vanes and the flow direction of flushing fluid form a certain angle; the rotor turbine (103) is rotatably arranged on the inner wall of the shell (101) through a bearing (104) arranged in the circumferential direction, a plurality of guide vanes are uniformly arranged on the inner wall of the rotor turbine (103), and the tangential direction of the guide vanes forms a certain angle with the flow direction of flushing liquid; the power generation assembly (105) is connected with the rotor turbine (103) through a transmission shaft and is driven to rotate by the rotor turbine (103) so as to generate electric energy; the control assembly (106) is used for monitoring the working state of the power generation assembly (105), the energy storage assembly (107) is used for storing electric energy, the central wire passing assembly (109) is a cable, two ends of the central wire passing assembly are respectively connected with the central through cables of the wire transmission unit (8) and the central through cable drill rod (11), and the side wall cable (109) is connected with the central through cables and used for transmitting electric energy to the in-hole device (1.1).
4. The coal mine underground multi-channel measurement-while-drilling geosteering system as claimed in claim 1, wherein an included angle between the tangential direction of the guide vanes of the stator turbine (102) and the flow direction of the flushing fluid is 20-30 degrees.
5. The coal mine underground multi-channel measurement-while-drilling geosteering system as claimed in claim 1, wherein an included angle between the tangential direction of the guide vanes of the rotor turbine (103) and the flow direction of the flushing fluid is 40-50 degrees.
6. The coal mine underground multi-channel measurement while drilling geosteering system as claimed in claim 1, wherein the stator turbine (102) is in interference fit with the inner wall of the shell (101), the bearings (104) arranged circumferentially of the rotor turbine (103) are mounted on the inner wall of the shell (101) in a threaded connection mode, the power generation assembly (105) adopts a power generator, and the energy storage assembly (107) adopts a rechargeable battery pack.
7. The construction method for directional drilling along the coal seam by using the underground coal mine multi-channel measurement while drilling geosteering system as claimed in any one of claims 1 to 6 comprises the following steps:
step 1: in the drilling process of the near-horizontal directional drilling shallow hole section, a slurry pump (12) is used for pumping flushing liquid into the hole, and a drill rod power supply unit (10) is driven to supply power to a device (1.1) in the hole; meanwhile, the geological measurement unit (4) measures drilling track parameters and natural gamma information of the coal measure stratum in real time, and sends wired measurement signals to the orifice by using the wired transmission unit (8); the display (15) receives the wired measurement signal through the signal transmission line I, processes the wired measurement signal and displays drilling track parameters and natural gamma information so as to monitor the relative distance between the drilling track and the coal seam top and bottom plate and keep the drilling track extending in the middle of the coal seam; the shallow hole section is a hole section with stable signal transmission capability of a wired transmission unit (8);
step 2: the control unit (5) monitors whether the display (15) of the orifice supplies power to the device (1.1) in the hole in real time, if so, the wired transmission unit (8) is continuously adopted for signal transmission, and real-time monitoring is kept, otherwise, the control unit judges that the deep hole section is entered, the signal transmission capability of the wired transmission unit (8) is not stable enough, and then, the step 3 is entered;
and step 3: the control unit (5) switches the electromagnetic wave transmission unit (6) and the mud pulse transmission unit (7) according to the rotating speed and the rotating speed maintaining time of the drilling machine; the method comprises the following steps: a working mode monitoring circuit of the control unit (5) monitors the rotating speed of the in-hole device (1.1) in real time, when the monitored rotating speed reaches a rotating speed threshold value A and the monitoring rotating speed retention time reaches a threshold value C, a slurry pulse transmission unit (7) is used for transmitting a measurement signal, and the step 4 is carried out to carry out near-horizontal directional drilling deep hole section construction; and when the monitoring rotating speed reaches a threshold value B and the monitoring rotating speed maintaining time reaches a threshold value C, transmitting a measuring signal by using the electromagnetic wave transmission unit (6), and performing near-horizontal directional drilling deep hole section construction in the step 5.
8. The method of claim 7, wherein in step 3, the threshold speed value B is twice the threshold speed value a.
9. The method of claim 7, wherein the step 4 of performing near-horizontal directional drilling deep hole section construction specifically comprises the following steps:
in the drilling process of a deep hole section of a near-horizontal directional drilling hole, a slurry pump 12 is used for pumping flushing fluid into the hole, a drill rod power supply unit (10) is driven to supply power to an in-hole device (1.1), meanwhile, a geological measurement unit (4) measures drilling track parameters and natural gamma information of a coal measure stratum in real time, and a slurry pulse transmission unit (7) is used for sending a slurry pulse signal to an orifice; the pressure monitor (13) receives the mud pulse signal and transmits the mud pulse signal to the display (15) through a signal transmission line II so as to monitor the drilling track; when the coal measure stratum natural gamma information is adopted to monitor that a drilling track extends in the middle of a coal measure stratum, a mud pulse transmission unit (7) is continuously used for transmitting drilling track parameters and the coal measure stratum natural gamma information, wherein the deep hole section refers to a hole section which cannot meet the signal transmission requirement due to unstable signals of a wired transmission unit (8).
10. The method of claim 7, wherein the step 5 of performing near-horizontal directional drilling deep hole section construction specifically comprises the following steps:
in the drilling process of a deep hole section of a nearly horizontal directional drilling hole, flushing liquid is pumped into the hole by a slurry pump (12), a drill rod power supply unit (10) is driven to supply power to an in-hole device (1.1), meanwhile, a geological measurement unit (4) measures drilling track parameters and coal measure stratum natural gamma information in real time, and when the coal measure stratum natural gamma information is adopted to monitor and display that a drilling track is close to a coal seam roof or a bottom plate, an electromagnetic wave signal is transmitted to an orifice in real time by an electromagnetic wave transmission unit (6); the display (15) receives electromagnetic wave signals through a signal transmission line (III) which is connected with the central cable drill rod (11) and the signal receiving electrode (14), and displays the drilling track and natural gamma information in real time after processing the electromagnetic wave signals so as to monitor the relative distance between the drilling track and the coal seam roof and floor; meanwhile, the tool face angle of the screw motor (2) is adjusted, so that the drilling track is adjusted towards the middle direction of the coal seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210113152.7A CN114508344B (en) | 2022-01-30 | 2022-01-30 | Underground coal mine multi-channel measurement while drilling geosteering system and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210113152.7A CN114508344B (en) | 2022-01-30 | 2022-01-30 | Underground coal mine multi-channel measurement while drilling geosteering system and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114508344A true CN114508344A (en) | 2022-05-17 |
| CN114508344B CN114508344B (en) | 2024-05-31 |
Family
ID=81551815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210113152.7A Active CN114508344B (en) | 2022-01-30 | 2022-01-30 | Underground coal mine multi-channel measurement while drilling geosteering system and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114508344B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059449A (en) * | 2022-06-22 | 2022-09-16 | 中煤科工集团西安研究院有限公司 | Underground coal mine self-identification multi-parameter near-bit measurement while drilling device and method |
| CN115450606A (en) * | 2022-09-15 | 2022-12-09 | 中煤科工西安研究院(集团)有限公司 | Coal mine underground composite power supply full-working-condition multi-parameter measurement-while-drilling system and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448227A (en) * | 1992-01-21 | 1995-09-05 | Schlumberger Technology Corporation | Method of and apparatus for making near-bit measurements while drilling |
| US20070079988A1 (en) * | 2005-10-07 | 2007-04-12 | Precision Energy Services, Ltd. | Method and apparatus for transmitting sensor response data and power through a mud motor |
| CN103233722A (en) * | 2013-04-28 | 2013-08-07 | 中煤科工集团西安研究院 | Coal mine underground explosion proof type electromagnetic wave wireless measurement while drilling system and application method thereof |
| US20160230546A1 (en) * | 2015-02-10 | 2016-08-11 | Pulse Directional Technologies, Inc. | At-bit downhole sensor and transmitter |
| CN106050143A (en) * | 2016-06-23 | 2016-10-26 | 中煤科工集团西安研究院有限公司 | Downhole directional hole bedding guided drilling system and method based on formation lithology identification |
| CN107676078A (en) * | 2017-11-03 | 2018-02-09 | 中煤科工集团重庆研究院有限公司 | Coal mine underground water pulse wireless measurement while drilling system and measurement method |
| CN108590529A (en) * | 2018-06-26 | 2018-09-28 | 陕西太合智能钻探有限公司 | A kind of compound directional drilling equipment of underground coal mine bad ground and its application |
| US20180355710A1 (en) * | 2016-07-26 | 2018-12-13 | Orient Energy & Technologies Co., Ltd. | Near-bit measurement while drilling system |
| CN113719237A (en) * | 2021-08-23 | 2021-11-30 | 中煤科工集团西安研究院有限公司 | Broken soft thin coal seam gas extraction directional long drilling construction drilling tool combination and method |
-
2022
- 2022-01-30 CN CN202210113152.7A patent/CN114508344B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448227A (en) * | 1992-01-21 | 1995-09-05 | Schlumberger Technology Corporation | Method of and apparatus for making near-bit measurements while drilling |
| US20070079988A1 (en) * | 2005-10-07 | 2007-04-12 | Precision Energy Services, Ltd. | Method and apparatus for transmitting sensor response data and power through a mud motor |
| CN103233722A (en) * | 2013-04-28 | 2013-08-07 | 中煤科工集团西安研究院 | Coal mine underground explosion proof type electromagnetic wave wireless measurement while drilling system and application method thereof |
| US20160230546A1 (en) * | 2015-02-10 | 2016-08-11 | Pulse Directional Technologies, Inc. | At-bit downhole sensor and transmitter |
| CN106050143A (en) * | 2016-06-23 | 2016-10-26 | 中煤科工集团西安研究院有限公司 | Downhole directional hole bedding guided drilling system and method based on formation lithology identification |
| US20180355710A1 (en) * | 2016-07-26 | 2018-12-13 | Orient Energy & Technologies Co., Ltd. | Near-bit measurement while drilling system |
| CN107676078A (en) * | 2017-11-03 | 2018-02-09 | 中煤科工集团重庆研究院有限公司 | Coal mine underground water pulse wireless measurement while drilling system and measurement method |
| CN108590529A (en) * | 2018-06-26 | 2018-09-28 | 陕西太合智能钻探有限公司 | A kind of compound directional drilling equipment of underground coal mine bad ground and its application |
| CN113719237A (en) * | 2021-08-23 | 2021-11-30 | 中煤科工集团西安研究院有限公司 | Broken soft thin coal seam gas extraction directional long drilling construction drilling tool combination and method |
Non-Patent Citations (2)
| Title |
|---|
| 石智军;姚克;田宏亮;李泉新;姚宁平;田东庄;殷新胜;许超;: "煤矿井下随钻测量定向钻进技术与装备现状及展望", 煤炭科学技术, no. 05, 15 May 2019 (2019-05-15) * |
| 石智军;李泉新;姚克;: "煤矿井下水平定向钻进技术与装备的新进展", 探矿工程(岩土钻掘工程), no. 01, 25 January 2015 (2015-01-25) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059449A (en) * | 2022-06-22 | 2022-09-16 | 中煤科工集团西安研究院有限公司 | Underground coal mine self-identification multi-parameter near-bit measurement while drilling device and method |
| CN115059449B (en) * | 2022-06-22 | 2024-06-04 | 中煤科工集团西安研究院有限公司 | Underground coal mine self-identification multi-parameter near-bit measurement while drilling device and method |
| CN115450606A (en) * | 2022-09-15 | 2022-12-09 | 中煤科工西安研究院(集团)有限公司 | Coal mine underground composite power supply full-working-condition multi-parameter measurement-while-drilling system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114508344B (en) | 2024-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114508344B (en) | Underground coal mine multi-channel measurement while drilling geosteering system and construction method | |
| RU2572629C2 (en) | Method of drilling optimisation with downhole non-compression engine | |
| CN109577864B (en) | Electrode drill bit for coiled tubing high-voltage electric pulse-mechanical composite drilling | |
| CN111764855B (en) | Near-horizontal continuous directional coring advanced geological exploration system and method | |
| RU2616956C2 (en) | Bha electromotor in form of pipe-in-pipe | |
| US10273784B2 (en) | Fluid-driven power generation unit for a drill string assembly | |
| US20130222149A1 (en) | Mud Pulse Telemetry Mechanism Using Power Generation Turbines | |
| CN114607347A (en) | Coal mine underground near-bit multi-parameter measurement while drilling system based on hollow screw drilling tool | |
| CN112502626B (en) | Full-rotation directional guiding tool and structural design method for improving slope | |
| CN111946263A (en) | Screw motor deflecting drilling method | |
| CN103715581B (en) | The integrated wiring device of the advance geology exploration instrument that a kind of TBM carries | |
| CN102635486B (en) | Turbine driven downhole slurry generator | |
| CN114658355A (en) | Coal mine underground hole bottom self-generating wired geological guiding measurement while drilling system and method | |
| MX2008015174A (en) | Impulse rotor generator. | |
| CN115450606B (en) | Underground coal mine composite power supply all-condition multi-parameter measurement while drilling system and method | |
| RU2707208C1 (en) | Flexible weighted drill pipe for rotary controlled system | |
| GB2480151A (en) | Earth boring apparatus | |
| US11585189B2 (en) | Systems and methods for recycling excess energy | |
| CN110847821B (en) | High-deflecting and high-drilling-speed rotary guide system | |
| CN212027660U (en) | Intelligent coal mine drilling machine | |
| CN205260009U (en) | Producing string is flowed in accuse of oil saturation that independently supplies power in pit control intelligence | |
| CN202493260U (en) | Integral electromagnetic valve wireless measurement while drilling device for coal mine | |
| CN211666634U (en) | High-deflecting and high-drilling-speed rotary guide system | |
| CN214741182U (en) | Induced polarization equipment in well | |
| Abyzbayev et al. | Electrodrilling: Past experience and present opportunities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |