CN218816499U - Exploring tube and device for comprehensively measuring drilling gas parameters - Google Patents

Abstract

The application relates to a visit pipe and device for drilling gas parameter integrated determination, visit the pipe and include: the power supply section comprises a first outer pipe, a probe pipe battery pack and an extraction negative pressure measuring module, wherein the probe pipe battery pack and the extraction negative pressure measuring module are positioned in the first outer pipe; the main control section comprises a second outer pipe which is coaxially and detachably connected with the first outer pipe, and a main control circuit board, a track measuring module, a Bluetooth module and an aviation plug female head which is spliced with the aviation plug male head are arranged in the second outer pipe; the measuring section comprises a third outer pipe which is coaxially and detachably connected with the second outer pipe, and a gas concentration sensor connected with the main control circuit board is arranged in the third outer pipe. The probe tube is designed in a split mode, so that the real-time accurate measurement of the methane concentration and the extraction negative pressure is realized, the diameter of the probe tube is small enough, and the probe tube is suitable for in-situ measurement in a gas drainage tube.

Description

Exploring tube and device for comprehensively measuring drilling gas parameters

Technical Field

The application relates to the technical field of gas measurement, in particular to a probe tube and a device for comprehensively measuring parameters of drilling gas.

Background

In China, 93 percent of coal mine production is underground mining, and more than 70 percent of coal mines are high gas mines. In coal mining, gas is associated gas of a coal bed, the gas is a main threat influencing safety production of the coal mine, meanwhile, the gas is also an important supplementary energy source, and gas extraction is a main mode for coal mine gas control and coal bed gas development of a coal mine area. In the gas extraction process, the guarantee of the sealing performance of the drill hole is the premise of guaranteeing the gas extraction efficiency and the extraction concentration of the drill hole.

In the related technology, the current traditional negative pressure measuring method for the drainage drill hole is characterized in that gas in the drainage drill hole is collected and conveyed to a measuring instrument outside the hole, and then parameters such as methane concentration, extraction negative pressure, temperature and the like are measured. The acquisition method cannot eliminate the interference of the transmission process on the data accuracy, causes data distortion, and cannot meet the requirement of continuously and flexibly acquiring the gas information of different parts in the drainage drill hole.

This application aims at solving the negative pressure value survey problem of the inside different positions department of drainage drilling to can obtain along drilling direction drainage negative pressure change law, the test result can be used to evaluate drilling gas drainage effect, and then accessible adjustment drainage system negative pressure or drilling construction parameter carry out gas drainage process optimization, have important meaning to mine gas drainage.

Disclosure of Invention

The embodiment of the application provides a probe and a device for drilling gas parameter comprehensive measurement to solve the problem that interference of a transmission process on data accuracy cannot be eliminated in the related technology, so that data distortion is caused, and the problem of collecting and releasing gas information of different positions in a drilling hole along the way cannot be solved.

The first aspect of the embodiment of the present application provides a probe for comprehensive measurement of drilling gas parameters, including:

the power supply section comprises a first outer pipe, a probe pipe battery pack and an extraction negative pressure measuring module, wherein the probe pipe battery pack and the extraction negative pressure measuring module are positioned in the first outer pipe;

the main control section comprises a second outer pipe which is coaxially and detachably connected with the first outer pipe, and a main control circuit board, a track measuring module, a Bluetooth module and an aviation plug female head which is spliced with an aviation plug male head are arranged in the second outer pipe;

the measuring section comprises a third outer pipe which is coaxially detachably connected with a second outer pipe, a gas concentration sensor connected with a main control circuit board is arranged in the third outer pipe, and a protective net is arranged at one end, far away from the second outer pipe, of the third outer pipe.

In some embodiments: one end of the push rod connector is provided with an internal thread connected with the push rod, and the other end of the push rod connector is provided with an external thread connected with the first outer pipe in a threaded manner;

and air holes enabling the extraction negative pressure measuring module to detect the external environment air pressure are radially formed in the side wall of the push rod connector, and filter screens are arranged in the air holes.

In some embodiments: the probe tube battery pack and/or the extraction negative pressure measuring module are encapsulated in a first outer tube through silica gel, and one end of the first outer tube, which is far away from the push rod connector, is in threaded connection with a first connector;

the aerial plug is electrically connected with the exploring tube battery pack and the extraction negative pressure measuring module and is fixed in the first connecting head;

one end of the second outer pipe close to the first outer pipe is in threaded connection with a second connector, and the aviation plug female head is fixed in the second connector;

the last rotating sleeve of overlapping of first connector is equipped with and inserts the aviation plug male connector the sleeve pipe of aviation plug female, sheathed tube one end and second connector threaded connection.

In some embodiments: the master control circuit board comprises a microprocessor, a storage module, a clock module, a power management module and an interface module which is connected with the extraction negative pressure measuring module, the gas concentration sensor, the track measuring module and the Bluetooth module;

the microprocessor acquires and stores the acquisition information of the extraction negative pressure measurement module, the gas concentration sensor and the track measurement module to the storage module, and wirelessly transmits the acquisition information in the storage module to the wireless terminal through the Bluetooth module.

In some embodiments: the gas extraction negative pressure measuring device is characterized in that the exploring tube battery pack is provided with an intrinsic safety power supply protection module, the intrinsic safety power supply protection module is connected with the exploring tube battery pack, and electric energy of the exploring tube battery pack is distributed to the microprocessor, the storage module, the clock module, the interface module, the extraction negative pressure measuring module, the track measuring module, the gas concentration sensor and the Bluetooth module.

In some embodiments: one end of the second outer pipe close to the third outer pipe is in threaded connection with a connecting sleeve, and one end of the third outer pipe close to the second outer pipe is in threaded connection with the connecting sleeve;

the main control circuit board, the track measuring module and the Bluetooth module are fixed in the second outer pipe through the circuit board fixing seat and are sequentially arranged along the axis direction of the second outer pipe.

In some embodiments: the extraction negative pressure measuring module is a micro air pressure sensor, and the gas concentration sensor is a micro laser methane gas sensor;

the second outer tube is made of non-metal materials, and a Bluetooth antenna connected with the Bluetooth module is arranged in the second outer tube.

In a second aspect, the embodiment of the present application provides an apparatus for comprehensively measuring parameters of borehole gas, including the probe according to any one of the embodiments above; and

the gas drainage pipe extends into the extraction drill hole, and the probe pipe is positioned in the gas drainage pipe;

one end of the three-way pipe is hermetically connected with one end of the gas drainage pipe, which is positioned at the orifice of the extraction drill hole;

the push rod is provided with a plurality of sections which are sequentially lengthened to push the probe tube into the set depth of the gas drainage tube;

and the wireless terminal is in wireless signal connection with the probe tube, receives and displays the acquired information acquired by the probe tube.

In some embodiments: a sealing sleeve which is in sealing connection with the push rod is arranged on the three-way pipe and is in sliding sealing connection with the push rod;

the end part of the branch pipe section of the three-way pipe is connected to a negative pressure mechanism through a main pipe, and the negative pressure mechanism is used for extracting gas in the gas drainage pipe.

In a third aspect, embodiments of the present invention provide a method for using a comprehensive measurement of borehole gas parameters, the method using the apparatus of any of the above embodiments, the method comprising the steps of:

connecting the three-way pipe into a gas drainage pipe and a main pipe for extracting gas;

starting the probe tube and the wireless terminal, searching the Bluetooth module of the probe tube by the wireless terminal, successfully connecting, setting working parameters, and aligning the wireless terminal with the clock module of the probe tube;

starting measurement, connecting the probe tube with a first section of push rod, sleeving a sealing sleeve on the push rod, inserting the probe tube into the gas drainage tube through the three-way tube, and inserting the sealing sleeve into the three-way tube to finish measurement preparation work;

measuring section by section, lengthening push rods one by one after countdown is finished, enabling the exploring tube to advance in the gas drainage tube, and synchronously and continuously measuring the methane concentration, the extraction negative pressure and the azimuth angle and the inclination angle of a track;

when a push rod is lengthened, the number of the push rods is counted on the wireless terminal, and the pushing depth of the probe tube is recorded until the designed depth is reached;

after the whole-hole measurement is finished, clicking 'finish measurement' on the wireless terminal, and withdrawing the push rods one by one to take out the probe tubes;

clicking 'received data' on the wireless terminal, and transmitting the current drilling measurement data stored in the probe to the wireless terminal;

and opening the received data on the wireless terminal, and checking a number table and a curve chart of the depth of the measuring point, the methane concentration, the extraction negative pressure, the track azimuth angle and the inclination angle.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a probe tube and a device for comprehensively measuring drilling gas parameters, wherein the probe tube is provided with a power supply section, the power supply section comprises a first outer tube, a probe tube battery pack and an extraction negative pressure measuring module, the probe tube battery pack and the extraction negative pressure measuring module are positioned in the first outer tube, one end of the first outer tube is fixedly connected with a push rod connector, and the other end of the first outer tube is provided with an aerial plug male head connected with a main control section; the main control section comprises a second outer pipe which is coaxially and detachably connected with the first outer pipe, and a main control circuit board, a track measuring module, a Bluetooth module and an aviation plug female head which is spliced with the aviation plug female head are arranged in the second outer pipe; the measurement section comprises a third outer tube which is coaxially detachably connected with the second outer tube, a gas concentration sensor connected with a main control circuit board is arranged in the third outer tube, and a protective net is arranged at one end, far away from the second outer tube, of the third outer tube.

Therefore, the exploring tube consists of a power supply section, a main control section and a measuring section which are sequentially connected, a miniaturized extraction negative pressure measuring module and a gas concentration sensor are adopted, and a split design of the exploring tube structure is combined, so that the real-time accurate measurement of the methane concentration and the extraction negative pressure is realized, the diameter of the exploring tube is ensured to be small enough, and the exploring tube is suitable for in-situ measurement in a gas drainage tube. Measurement data such as methane concentration, pressure and drilling track are saved in the probe tube, and probe tube and wireless terminal wireless data transmission need not the cable junction, have simplified the device structure, more are fit for removing in the gas drainage pipe, realize the normal position and measure.

The device can repeatedly measure the same gas drainage pipe in different gas drainage stages, contrastively analyzes the variation conditions of on-way methane concentration and drainage negative pressure of drill holes in different stages, analyzes the variation characteristics of coal rock layers of the drill holes, guides and optimizes a gas drainage process, and achieves the best drainage effect. The spatial distribution condition of the gas parameters is determined through the measurement of the gas parameters along the drilling path and the measurement of the drilling track, the gas extraction effect of the area is analyzed in a multi-hole combined mode, the spatial arrangement of the extraction holes is guided, and the optimal extraction effect of the gas in the area is achieved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a probe according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a power supply segment according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a master control segment and a measurement segment according to an embodiment of the present application;

FIG. 4 is a block diagram of a probe according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an apparatus according to an embodiment of the present application;

FIG. 6 is a flow chart of a method of an embodiment of the present application;

FIG. 7 is a graph of methane concentration in accordance with an embodiment of the present invention;

FIG. 8 is a graph of in-process extraction negative pressure in the embodiment of the application;

FIG. 9 is an azimuthal horizontal projection of an embodiment of the present application;

FIG. 10 is a cross-sectional view of the embodiment of the present application showing the tilt angle.

Reference numerals:

1. a probe tube; 2. a gas drainage pipe; 3. drilling is extracted; 4. a push rod; 5. a three-way pipe; 6. sealing sleeves; 7. a wireless terminal;

110. a power supply section; 111. a first outer tube; 112. a probe battery pack; 113. an extraction negative pressure measuring module; 114. a push rod connector; 115. air holes are formed; 116. filtering with a screen; 117. a first connector; 118. an aviation plug; 119. a sleeve;

120. a master control segment; 121. a second outer tube; 122. a trajectory measurement module; 123. a main control circuit board; 124. a Bluetooth module; 125. a second connector; 126. an aircraft plug; 127. a circuit board fixing seat; 128. connecting sleeves;

130. measuring the segment; 131. a third outer tube; 132. a gas concentration sensor; 133. and (4) a protective net.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a probe and a device for drilling gas parameter comprehensive measurement, which can solve the problem that the interference of a transmission process on data accuracy cannot be eliminated in the related technology, so that data distortion is caused, and the problem of collecting and exhausting gas information at different positions in a drilling hole along the way cannot be solved.

Referring to fig. 1 to 3, in a first aspect, the embodiment of the present application provides a probe for comprehensive measurement of borehole gas parameters, where the probe 1 includes:

the power supply section 110 comprises a first outer pipe 111, a probe tube battery pack 112 and an extraction negative pressure measurement module 113, wherein the probe tube battery pack 112 and the extraction negative pressure measurement module 113 are located in the first outer pipe 111, the probe tube battery pack 112 is used for supplying power to all electronic devices in the probe tube 1, and the extraction negative pressure measurement module 113 is used for measuring gas pressure.

One end of the first outer tube 111 is fixedly connected with a push rod connector 114, the other end is provided with an aviation plug 118 connected with a main control section 120, and the push rod connector 114 is used for connecting a push rod 4 to push the probe tube 1 to a set depth in the gas drainage tube 2. After the exploring tube battery pack 112 and the extraction negative pressure measurement module 113 are both connected with the aviation plug 118, the aviation plug 118 is connected with the main control section 120 in a plugging mode.

The main control section 120 comprises a second outer tube 121 coaxially and detachably connected with the first outer tube 111, and a main control circuit board 123, a track measuring module 122, a bluetooth module 124 and an aviation plug female head 126 plugged with the aviation plug male head 118 are arranged in the second outer tube 121. The main control circuit board 123 is used for acquiring and storing acquisition information of the extraction negative pressure measurement module 113, the trajectory measurement module 122, and the gas concentration sensor 132.

The track measuring module 122 is used for measuring the azimuth angle and the inclination angle of the running track of the probe 1 in the gas drainage pipe 2, and the bluetooth module 124 is used for wirelessly transmitting the acquired information of the extraction negative pressure measuring module 113, the track measuring module 122 and the gas concentration sensor 132 acquired by the main control circuit board 123 to the external wireless terminal 7, so as to replace the cable connection between the probe 1 and the measuring instrument outside the hole in the prior art.

And the measuring segment 130 comprises a third outer pipe 131 coaxially and detachably connected with the second outer pipe 121, a gas concentration sensor 132 connected with the main control circuit board 123 is arranged in the third outer pipe 131, and a protective net 133 is arranged at one end, far away from the second outer pipe 121, of the third outer pipe 131. The gas concentration sensor 132 is used to measure the concentration of the gas, and the protection net 133 is used to communicate the gas concentration sensor 132 with the external environment and to protect the gas concentration sensor 132.

The probe 1 of the embodiment of the application is composed of a power supply section 110, a main control section 120 and a measurement section 130 which are sequentially connected, a miniaturized extraction negative pressure measurement module 113 and a gas concentration sensor 132 are adopted, and a split design of the structure of the probe 1 is combined, so that the real-time accurate measurement of methane concentration and extraction negative pressure is realized, the diameter of the probe is ensured to be small enough, and the probe is suitable for in-situ measurement in the gas drainage pipe 2.

The measurement data such as the methane concentration, the gas pressure and the drilling track collected by the gas concentration sensor 132, the gas extraction negative pressure measurement module 113 and the track measurement module 122 are stored in the probe 1, the probe 1 and the wireless terminal 7 are in wireless data transmission without cable connection, the structure of the device is simplified, and the device is more suitable for moving in the gas drainage pipe 2 to realize in-situ measurement.

In some alternative embodiments: referring to fig. 2, in the embodiment of the present application, a probe for comprehensive measurement of drilling gas parameters is provided, wherein one end of a push rod connector 114 of the probe 1 is provided with an internal thread for connecting a push rod 4, and the other end is provided with an external thread for screwing with a first outer tube 111. The push rod connector 114 is connected with one end of the push rod 4 through a thread, so that the push rod 4 and the push rod connector 114 can be conveniently mounted and dismounted.

The push rod connector 114 is in threaded connection with the first outer pipe 111, so that the probe tube battery pack 112 and the extraction negative pressure measuring module 113 can be assembled in the first outer pipe 111 conveniently. The side wall of the push rod connector 114 is radially provided with an air vent 115 which enables the extraction negative pressure measurement module 113 to detect the external environment air pressure, a filter screen 116 is arranged in the air vent 115, and the filter screen 116 is used for protecting the extraction negative pressure measurement module 113.

In some alternative embodiments: referring to fig. 2 and 3, in the embodiment of the application, a probe tube for comprehensively measuring parameters of gas in a borehole is provided, and a probe tube battery pack 112 and a negative extraction pressure measuring module 113 of the probe tube 1 are embedded in a first outer tube 111 through silica gel, so that the probe tube battery pack 112 and the negative extraction pressure measuring module 113 are fixed in the first outer tube 111. A first connector 117 for connecting to a main control segment 120 is threadedly connected to an end of first outer tube 111 remote from pushrod connector 114.

The aviation plug 118 is electrically connected with the exploring tube battery pack 112 and the extraction negative pressure measuring module 113 and then fixed in the first connecting head 117. One end of the second outer tube 121 close to the first outer tube 111 is connected with a second connector 125 through threads, the aviation plug female head 126 is fixed in the second connector 125, a sleeve 119 for inserting the aviation plug male 118 into the aviation plug female head 126 is rotatably sleeved on the first connector 117, and one end of the sleeve 119 is connected with the second connector 125 through threads.

The first outer tube 111 and the second outer tube 121 of the embodiment of the present application are connected to each other by the first connector 117 and the second connector 125, which facilitates the mounting and dismounting between the power supply segment 110 and the main control segment 120. When the power supply section 110 or the main control section 120 fails, the maintenance and the replacement are convenient, and the service life and the use cost of the probe 1 are prolonged.

The first connector 117 and the second connector 125 are internally provided with an aviation plug male 118 and an aviation plug female 126 which are connected in a plugging manner, and when the first connector 117 and the second connector 125 are fixedly connected together by the sleeve 119, the aviation plug male 118 and the aviation plug female 126 are plugged into each other to realize the electrical connection of the power supply section 110 or the main control section 120.

In some alternative embodiments: referring to fig. 4, the main control circuit board 123 of the probe 1 includes a microprocessor, a storage module, a clock module, a power management module, and an interface module connecting the extraction negative pressure measurement module 113, the gas concentration sensor 132, the trajectory measurement module 122, and the bluetooth module 124.

The microprocessor is preferably an ARM microprocessor, acquires and stores the acquisition information of the extraction negative pressure measurement module 113, the gas concentration sensor 132 and the trajectory measurement module 122 in the storage module, and wirelessly transmits the acquisition information in the storage module to the wireless terminal 7 through the bluetooth module 124.

The exploring tube battery pack 112 is provided with an intrinsic safety power protection module, the intrinsic safety power protection module is connected with the exploring tube battery pack 112, and electric energy of the exploring tube battery pack 112 is distributed to the microprocessor, the storage module, the clock module, the interface module, the extraction negative pressure measuring module 113, the track measuring module 122, the gas concentration sensor 132 and the Bluetooth module 124.

The internal probe battery pack 112 of the probe 1 in the embodiment of the present application is subjected to intrinsic safety protection such as current limiting and overcharge of the intrinsic safety power protection module, and then generates power supplies required by each peripheral and the inside through the power management module on the main control circuit board 123, so as to supply power to each component. The microprocessor carries out bidirectional data interaction with the extraction negative pressure measuring module 113, the gas concentration sensor 132, the track measuring module 122 and the Bluetooth module 124 through the interface module.

The clock module generates an accurate clock signal, and the accurate clock signal is used as a time reference of internally acquired data of each sensor after being synchronized with an initial clock of an external wireless terminal 7. And acquiring extraction negative pressure data, gas concentration data, azimuth angle and inclination angle data of the track according to a set time interval, and sequentially storing the data and the time data of the current moment in a storage module.

In some alternative embodiments: referring to fig. 3, in the embodiment of the present application, a probe tube for comprehensive measurement of drilling gas parameters is provided, wherein a connecting sleeve 128 is screwed to one end of the second outer tube 121 of the probe tube 1, which is close to the third outer tube 131, and one end of the third outer tube 131, which is close to the second outer tube 121, is screwed to the connecting sleeve 128.

The main control circuit board 123, the trace measuring module 122 and the bluetooth module 124 are fixed in the second outer tube 121 through a circuit board fixing seat 127, and are sequentially arranged along the axial direction of the second outer tube 121. The extraction negative pressure measurement module 113 is a micro air pressure sensor, and the gas concentration sensor 132 is a micro laser methane gas sensor.

The second outer tube 121 is made of a non-metal material, such as a plastic tube, a bluetooth antenna connected to the bluetooth module 124 is disposed in the second outer tube 121, and the bluetooth antenna transmits a signal transmitted by the bluetooth module 124 to the wireless terminal 7.

Second lateral tube 121 and third lateral tube 131 of the embodiment of the present application are connected by connecting sleeve 128, which facilitates the installation and removal of measurement segment 130 and main control segment 120. When the measuring section 130 or the main control section 120 fails, the maintenance and the replacement are convenient, and the service life and the use cost of the probe 1 are improved.

The main control circuit board 123, the trace measuring module 122 and the bluetooth module 124 are fixed in the second outer tube 121 through a circuit board fixing seat 127, and are sequentially arranged along the axial direction of the second outer tube 121. The main control circuit board 123, the track measuring module 122 and the bluetooth module 124 are fixed in the second outer tube 121, and the outer diameter of the second outer tube 121 is reduced at the same time, so that the outer diameter of the second outer tube 121 is controlled within 22 mm.

The inner diameter of the gas drainage pipe 2 arranged in the extraction drill hole 3 is usually less than 30mm, so that the diameter of the probe pipe 1 is required to be small enough to facilitate the probe pipe 1 to be smoothly pushed in the gas drainage pipe 2; meanwhile, the strength of the probe 1 is ensured, so that the probe is not extruded and deformed. Therefore, in this embodiment, the extraction negative pressure measurement module 113 is a micro air pressure sensor, and the gas concentration sensor 132 is a micro laser methane gas sensor. The extraction negative pressure measurement module 113 and the gas concentration sensor 132 are arranged at two ends of the probe 1, so that the size space of each component is fully utilized, and the diameter of the probe 1 is controlled within 22 mm.

Referring to fig. 5, a second aspect of the embodiments of the present application provides an apparatus for comprehensive measurement of borehole gas parameters, the apparatus including a probe 1 according to any of the embodiments; and

the gas drainage pipe 2 extends into the extraction drill hole 3, and the probe pipe 1 is positioned in the gas drainage pipe 2.

And one end of the three-way pipe 5 is hermetically connected with one end of the gas drainage pipe 2, which is positioned at the orifice of the extraction drill hole 3.

The push rod 4, this push rod 4 is equipped with the multistage, and multistage push rod 4 connects the length in proper order will visit the setting for the degree of depth that pipe 1 pushed gas drainage pipe 2.

And the wireless terminal 7 is in wireless signal connection with the probe tube 1, and receives and displays the acquired information acquired by the probe tube 1.

A sealing sleeve 6 which is connected with the push rod 4 in a sealing way is arranged on the three-way pipe 5, and the sealing sleeve 6 is connected with the push rod 4 in a sliding and sealing way.

The end part of the branch pipe section of the three-way pipe 5 is connected with a negative pressure mechanism (not shown in the figure) through a main pipe, and the negative pressure mechanism is used for extracting gas in the gas drainage pipe 2.

The device provided by the embodiment of the application can be used for repeatedly measuring the same gas drainage pipe 2 in different gas drainage stages, comparing and analyzing the change conditions of the on-way methane concentration and the drainage negative pressure of the drainage drill holes 3 in different stages, analyzing the change characteristics of the coal strata of the drill holes, guiding and optimizing the gas drainage process and achieving the best drainage effect.

The spatial distribution condition of the gas parameters is determined through the measurement of the gas parameters along the drilling path and the measurement of the drilling track, the gas extraction effect of the area is analyzed in a multi-hole combined mode, the spatial arrangement of the extraction holes is guided, and the optimal extraction effect of the gas in the area is achieved.

Referring to fig. 5 to 10, in a third aspect of the embodiments of the present application, there is provided a method for using a comprehensive measurement of borehole gas parameters, the method using the apparatus according to any of the embodiments described above, the method including the steps of:

step 101, connecting the three-way pipe 5 to a gas drainage pipe 2 and a main pipe for extracting gas.

102, starting the probe tube 1 and the wireless terminal 7, searching the Bluetooth module of the probe tube 1 by the wireless terminal 7, connecting successfully, setting working parameters, and aligning the wireless terminal 7 with the clock module of the probe tube 1 in a clock mode.

103, starting measurement, connecting the probe 1 with the first section of push rod 4, sleeving a sealing sleeve 6 on the push rod 4, inserting the probe 1 into the gas drainage pipe 2 through the three-way pipe 5, and inserting the sealing sleeve 6 into the three-way pipe 5 to finish measurement preparation work.

And 104, measuring section by section, lengthening the push rod 4 section by section after countdown is finished, enabling the exploring tube 1 to advance in the gas drainage tube 2, and synchronously and continuously acquiring and storing the measured values of the methane concentration, the drainage negative pressure, the azimuth angle of the track and the inclination angle at the current moment by the exploring tube 1 according to a set time interval.

And 105, propelling the probe tube 1 according to a set depth interval, counting the number of push rods 4 on the wireless terminal 7 every time one push rod 4 is lengthened, and recording the pushing depth of the probe tube 1 by the wireless terminal 7 until the designed depth is reached.

And step 106, clicking a 'measurement ending' button on the wireless terminal 7 after the full-hole measurement is finished, withdrawing the push rod 4 one by one to take out the probe 1, and repeating the step 104 and the step 105 if the full-hole measurement is not finished.

And step 107, clicking a 'data receiving' button on the wireless terminal 7, and transmitting the current drilling measurement data stored in the probe 1 to the wireless terminal 7.

Step 108, opening the received data on the wireless terminal 7, and checking a table and a curve chart of the measuring point depth, the methane concentration, the extraction negative pressure, the track azimuth angle and the inclination angle.

Actually measured result counting table

Principle of operation

The embodiment of the application provides a probe and a device for comprehensively measuring parameters of gas in a drill hole, and the probe 1 is provided with a power supply section 110, wherein the power supply section 110 comprises a first outer pipe 111, a probe battery pack 112 and an extraction negative pressure measuring module 113 which are positioned in the first outer pipe 111, one end of the first outer pipe 111 is fixedly connected with a push rod connector 114, and the other end of the first outer pipe is provided with an aviation plug male 118 connected with a main control section 120; the main control section 120 comprises a second outer tube 121 coaxially and detachably connected with the first outer tube 111, and a main control circuit board 123, a track measuring module 122, a bluetooth module 124 and an aviation plug female head 126 in plug-in connection with the aviation plug male head 118 are arranged in the second outer tube 121; and the measuring segment 130 comprises a third outer pipe 131 coaxially and detachably connected with the second outer pipe 121, a gas concentration sensor 132 connected with the main control circuit board 123 is arranged in the third outer pipe 131, and a protective net 133 is arranged at one end, far away from the second outer pipe 121, of the third outer pipe 131.

Therefore, the probe of the present application is composed of the power supply section 110, the main control section 120 and the measurement section 130 which are connected in sequence, and by adopting the miniaturized extraction negative pressure measurement module 113 and the gas concentration sensor 132 and combining the split design of the probe structure, not only is the real-time accurate measurement of the methane concentration and the extraction negative pressure realized, but also the diameter of the probe 1 is ensured to be small enough, and the probe is suitable for the in-situ measurement in the gas drainage pipe 2. Measurement data such as methane concentration, pressure and drilling orbit are saved in exploring tube 1, and exploring tube 1 and wireless terminal 7 wireless data transmission need not cable junction, have simplified the device structure, more are fit for removing in gas drainage pipe 2, realize the normal position and measure.

The device can repeatedly measure the same gas drainage pipe 2 in different gas drainage stages, contrastively analyzes the variation conditions of on-way methane concentration and drainage negative pressure of drill holes in different stages, analyzes the variation characteristics of coal rock layers of the drill holes, guides and optimizes a gas drainage process, and achieves the best drainage effect. The spatial distribution condition of the gas parameters is determined through the measurement of the gas parameters along the drilling path and the measurement of the drilling track, the gas extraction effect of the area is analyzed in a multi-hole combined mode, the spatial arrangement of the extraction holes is guided, and the optimal extraction effect of the gas in the area is achieved.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A visit pipe for comprehensive measurement of drilling gas parameters is characterized by comprising:

the power supply section (110) comprises a first outer pipe (111), a probe pipe battery pack (112) and an extraction negative pressure measuring module (113) which are positioned in the first outer pipe (111), one end of the first outer pipe (111) is fixedly connected with a push rod connector (114), and the other end of the first outer pipe is provided with an aviation plug male head (118) connected with a main control section (120);

the main control section (120) comprises a second outer tube (121) coaxially and detachably connected with the first outer tube (111), and a main control circuit board (123), a track measuring module (122), a Bluetooth module (124) and an aviation plug female head (126) spliced with an aviation plug male head (118) are arranged in the second outer tube (121);

the measuring segment (130) comprises a third outer pipe (131) which is coaxially detachably connected with the second outer pipe (121), a gas concentration sensor (132) connected with a main control circuit board (123) is arranged in the third outer pipe (131), and a protective net (133) is arranged at one end, far away from the second outer pipe (121), of the third outer pipe (131).

2. The probe for the comprehensive measurement of the parameters of the gas in the drill hole as claimed in claim 1, wherein:

one end of the push rod connector (114) is provided with an internal thread connected with the push rod (4), and the other end of the push rod connector is provided with an external thread connected with the first outer pipe (111) in a threaded manner;

and the side wall of the push rod connector (114) is radially provided with an air vent (115) for the extraction negative pressure measurement module (113) to detect the external environment air pressure, and a filter screen (116) is arranged in the air vent (115).

3. The probe for the comprehensive measurement of the parameters of the borehole gas as recited in claim 1 or 2, wherein:

the exploring tube battery pack (112) and/or the extraction negative pressure measuring module (113) are/is encapsulated in the first outer tube (111) through silica gel, and one end, far away from the push rod connector (114), of the first outer tube (111) is in threaded connection with a first connector (117);

the aviation plug male head (118) is electrically connected with the exploring tube battery pack (112) and the extraction negative pressure measuring module (113) and then is fixed in the first connecting head (117);

one end, close to the first outer pipe (111), of the second outer pipe (121) is in threaded connection with a second connector (125), and the aviation plug female head (126) is fixed in the second connector (125);

rotate the cover on first connector (117) and be equipped with and insert aviation plug male connector (118) sleeve pipe (119) of aviation plug female head (126), the one end and second connector (125) threaded connection of sleeve pipe (119).

4. The probe for the comprehensive measurement of the parameters of the gas in the drill hole as claimed in claim 1, wherein:

the master control circuit board (123) comprises a microprocessor, a storage module, a clock module, a power management module and an interface module, wherein the interface module is connected with the extraction negative pressure measuring module (113), the gas concentration sensor (132), the track measuring module (122) and the Bluetooth module (124);

the microprocessor acquires and stores acquisition information of the extraction negative pressure measurement module (113), the gas concentration sensor (132) and the track measurement module (122) to the storage module, and wirelessly transmits the acquisition information in the storage module to the wireless terminal (7) through the Bluetooth module (124).

5. The probe for the comprehensive measurement of the parameters of the borehole gas as recited in claim 4, wherein:

the gas extraction and drainage system is characterized in that the exploring tube battery pack (112) is provided with an intrinsic safety power supply protection module, the intrinsic safety power supply protection module is connected with the exploring tube battery pack (112), and electric energy of the exploring tube battery pack (112) is distributed to the microprocessor, the storage module, the clock module, the interface module, the gas extraction and drainage negative pressure measurement module (113), the track measurement module (122), the gas concentration sensor (132) and the Bluetooth module (124).

6. The probe for the comprehensive measurement of the parameters of the gas in the drill hole as claimed in claim 1, wherein:

a connecting sleeve (128) is connected to one end, close to the third outer pipe (131), of the second outer pipe (121) in a threaded manner, and one end, close to the second outer pipe (121), of the third outer pipe (131) is connected to the connecting sleeve (128) in a threaded manner;

the main control circuit board (123), the track measuring module (122) and the Bluetooth module (124) are fixed in the second outer pipe (121) through a circuit board fixing seat (127), and are sequentially arranged along the axial direction of the second outer pipe (121).

7. The probe for the comprehensive measurement of the parameters of the borehole gas as recited in claim 1, wherein:

the extraction negative pressure measuring module (113) is a micro air pressure sensor, and the gas concentration sensor (132) is a micro laser methane gas sensor;

the second outer tube (121) is made of a non-metal material, and a Bluetooth antenna connected with the Bluetooth module (124) is arranged in the second outer tube (121).

8. An apparatus for the integrated determination of borehole gas parameters, characterized in that it comprises a probe (1) according to any one of claims 1 to 7; and

the gas drainage pipe (2), the gas drainage pipe (2) extends into the drainage borehole (3), and the probe pipe (1) is positioned in the gas drainage pipe (2);

one end of the three-way pipe (5) is hermetically connected with one end, positioned at the orifice of the extraction drill hole (3), of the gas drainage pipe (2);

the push rod (4) is provided with a plurality of sections, and the push rods (4) are sequentially lengthened to push the probe pipe (1) into the set depth of the gas drainage pipe (2);

and the wireless terminal (7) is in wireless signal connection with the probe tube (1), receives the acquired information acquired by the probe tube (1) and displays the acquired information.

9. The apparatus for integrated determination of borehole gas parameters of claim 8, wherein:

a sealing sleeve (6) which is in sealing connection with the push rod (4) is arranged on the three-way pipe (5), and the sealing sleeve (6) is in sliding sealing connection with the push rod (4);

the end part of the branch pipe section of the three-way pipe (5) is connected to a negative pressure mechanism through a main pipe, and the negative pressure mechanism is used for extracting gas in the gas drainage pipe (2).

Images