WO2014023111A1 - Coal and gas burst risk parameter drilling and predicting integrated method - Google Patents

Coal and gas burst risk parameter drilling and predicting integrated method Download PDF

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Publication number
WO2014023111A1
WO2014023111A1 PCT/CN2013/074445 CN2013074445W WO2014023111A1 WO 2014023111 A1 WO2014023111 A1 WO 2014023111A1 CN 2013074445 W CN2013074445 W CN 2013074445W WO 2014023111 A1 WO2014023111 A1 WO 2014023111A1
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gas
coal
drilling
information
sensor
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PCT/CN2013/074445
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French (fr)
Chinese (zh)
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杨威
林柏泉
翟成
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中国矿业大学
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • 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
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires

Definitions

  • the invention relates to an integrated method for drilling and measuring dangerous parameters of coal and gas outburst, in particular to a rapid collection method for risk information of coal and gas outburst, which automatically collects the amount of drill cuttings and gas at different positions of the drilling hole during the drilling construction process.
  • Parameters such as gushing volume and rig torque provide data for accurate prediction of coal and gas outburst risk.
  • Coal and gas outburst is one of the most serious mine disasters.
  • the accurate prediction of the danger of coal and gas outburst is the most important part of preventing coal and gas outburst.
  • the prediction indicators adopted by the mine for coal and gas outburst danger prediction technology are too single, mainly using the single indicator and composite index provided in the Regulations on Prevention of Coal and Gas Outburst, and all of them are predicted by a few Hole prediction; although some universities and research institutes such as electromagnetic radiation, microseismic, acoustic emission technology and other technologies have enriched the forecast information amount to a certain extent, but these technologies are still not mature enough, and they are also needle coal to rock mass. In some aspects, the information is highlighted and the predicted information is insufficient.
  • coal and gas outburst are affected by many factors such as ground stress, gas pressure, coal strength, and mining process, no single prediction technology can capture enough information for accurate prediction.
  • information such as the real-time gushing volume of the drilling gas, the amount of cuttings, the torque of the drilling rig and other parameters can reflect the dangerous information of coal and gas outburst, but the difficulty of real-time collection of these information is compared. Large and abandoned, thus causing significant information waste for accurately predicting the risk of coal and gas outburst.
  • the prediction of coal and gas outburst hazard is only carried out through several predictive drilling holes. The information collected during the drilling process is not collected, the amount of information captured is limited, and the risk prediction is not accurate.
  • the object of the present invention is to provide an integrated drilling and measuring method for coal and gas outburst risk parameters, and to monitor the drilling machine by installing a gas concentration sensor, a gas flow rate sensor, a torque sensor, a weight sensor and a counter during the drilling process of the drilling machine.
  • Gas concentration, gas emission, drilling machine torque, cuttings volume, etc. during drilling process provide important information guidance for analyzing the distribution of gas and ground stress in front of the working face, which is the risk of coal and gas outburst. Accurate forecasts provide information.
  • the integrated method for drilling and measuring coal and gas outburst risk parameters of the invention comprises the following steps:
  • a diversion pipe is installed in the drilling hole, and a slag collector connected thereto is arranged below the exposed section of the guiding pipe, and is disposed above the exposed section of the guiding pipe
  • the connected gas drainage pipe has a gas concentration sensor and a flow velocity sensor connected to the multi-information processor in the gas drainage pipe, and a weight sensor connected to the multi-information processor at the bottom of the slag collector, on the drilling machine Install counter and torque sensor;
  • the gas gas enters the gas drainage pipe through the draft tube, and the gas concentration sensor and the flow rate sensor in the gas drainage pipe respectively transmit the gas concentration information and the flow rate information to the multi-information processor through the data line or wirelessly;
  • the torque sensor on the rig transmits the rig torque to the multi-information processor in real time through the data line or wireless;
  • the counter on the rig records the number of drill pipes used during the drilling construction, and transmits the monitoring information to the multi-information processor through the data line or wirelessly;
  • the multi-information processor automatically processes the collected information to obtain data on the amount of gas discharge, coal dust, and rig torque at different locations, and predicts the outstanding risk of coal and gas in the area.
  • the invention can collect the parameters such as the amount of cuttings, the amount of gas emission, the torque of the drilling rig and the drilling depth in the drilling process during the drilling process of the coal seam, and realize the integration of drilling and testing, saving coal and gas outburst.
  • the time and quantity of risk prediction which can reflect the variation and distribution of parameters such as ground stress and gas pressure in front of the working face, and provide diversified information data for accurate and timely prediction of the risk of coal and gas outburst in mining face. . It can improve the accuracy and timeliness of coal and gas outburst risk prediction.
  • the method Since it can collect the amount of cuttings, gas emission, drilling torque, drilling depth and other information in real time during the drilling process of the drilling rig, it can provide sufficient information to accurately predict the risk of coal and gas outburst, and improve coal and gas outburst. The accuracy of the risk prediction.
  • the method is simple, convenient to operate, good in effect, and has wide practicality.
  • FIG. 1 is a schematic view showing the integrated method of drilling and measuring the risk parameter of coal and gas outburst according to the present invention.
  • 1 - drilling rig 1 - drilling rig; 2 - counter; 3 - gas drainage pipe; 4 - gas concentration sensor; 5 - flow rate sensor; 6 - torque sensor; 7 - drilling; 8 - multi-information processor; 10 - weight sensor; 11 - slag collector; 12 - diversion tube; 13 - drill pipe; 14 - coal seam.
  • the integrated method for drilling and measuring the risk of coal and gas outburst of the present invention comprises using a drilling machine 1, a counter 2, a gas concentration sensor 4, a multi-information processor 8, a draft tube 12, a drill pipe 13; Firstly, the drilling machine 1 is used to construct the drilling hole 7 into the coal seam, and the guiding tube 12 is embedded in the hole 7 of the drilling hole, so that the open end of the guiding tube 12 is in the hole, and the other end is outside the hole, and the end portion is outside the hole.
  • a circular hole is left, and a slag collector 11 connected thereto is disposed below the exposed section of the draft tube 12, and a gas drainage pipe 3 connected to the draft tube 12 is disposed above the exposed section of the draft tube 12, and is drained in the gas.
  • a gas concentration sensor 4 and a flow rate sensor 5 are respectively disposed in the tube 3
  • a weight sensor 10 is disposed at the bottom of the slag collector 11, and a counter 2 and a torque sensor 6 are mounted on the rig 1, and the counter 2 is respectively connected through the data line 9.
  • the torque sensor 6, the gas concentration sensor 4, the flow rate sensor 5, the weight sensor 10 are connected to the multi-information processor 8, and then the drill pipe 13 is passed through the drill pipe 1 from the draft tube 12 to perform the drilling 7 forward;
  • the rod 13 passes through a circular hole in the section of the draft tube 12 Remains sealed while ensuring that the draft tube 12 and the bore 7 in close contact, such that the drilling construction 7 released from the inner bore 7 is discharged outward from the gas and coal dust inside the draft tube 12;
  • the exposed end of the guide tube 12 is sealed, and the coal dust enters the slag trapper 11 through the draft tube 12, and the gas released during the construction of the drill hole 7 is extracted.
  • the gas gas enters the gas drainage pipe 3 through the draft tube 12, and the gas concentration sensor 4 and the flow rate sensor 5 in the gas drainage pipe 3 respectively transmit the gas concentration information and the flow rate information to the multi-information processor 8 through the data line 9 or wirelessly. It is discharged through the gas drainage pipe 3 to prevent the gas from directly rushing into the roadway and easily lead to gas overrun.
  • the gas concentration and flow velocity can be easily tested by the gas concentration sensor 4 and the flow velocity sensor 5;
  • the drill cuttings released during the process are collected by the slag collector 11 to prevent the coal dust from being thrown and wounded during the nozzle hole, and at the same time, it is convenient to test the amount of drill cuttings discharged.
  • the weight sensor 10 at the bottom of the slag collector 11 periodically or in real time transmits the coal dust weight information to the multi-information processor 8 through the data line 9 or wirelessly;
  • the torque sensor 6 on the rig 1 transmits the rig torque to the multi-information processor 8 in real time through the data line 9 or wirelessly; at the same time, the counter 2 on the rig 1 records the number of drill rods 13 used during the construction of the borehole 7 and will The monitoring information is transmitted to the multi-information processor 8 through the data line 9 or wirelessly; the multi-information processor 8 automatically processes the collected information to obtain the amount of gas discharge, the amount of coal dust, and the torque of the rig that are drilled to the different positions. The data, in turn, predicts the outstanding hazard of coal and gas in the area.
  • a gas concentration sensor 4 and a flow velocity sensor 5 are arranged in the gas drainage pipe 3 to monitor the gas concentration and the air flow velocity in the gas drainage pipe 3, respectively, and the flow velocity sensor 5
  • the speed of the test and the size of the gas drainage pipe 3 can be used to calculate the real-time flow of the air gas, and the flow rate in the discharge pipe 3 can be directly tested directly by the flow sensor, and the monitoring information is transmitted to the multi-information processor 8 through the data line 9.
  • the drill cuttings discharged from the borehole 7 enter the slag collector 11 under the action of its own weight, and the weight sensor 10 is disposed in the slag collector 11 to monitor the weight of the coal dust in real time, and the monitoring information is transmitted to the multi-information processor 8 through the data line 9. .
  • the drilling machine 1 is provided with a torque sensor 6, which can be mounted on the drill pipe 13, on the water raft or other position capable of testing the torque of the rig, and monitors the torque of the rig 1 in real time.
  • the torque sensor 6 can also be replaced by a strain gauge, passing the strain
  • the rig torque is calculated and the monitoring information is transmitted to the multi-information processor 8 through the data line 9.
  • the rig 1 is provided with a counter 2 for recording the number of drill pipes 13 used in the drilling process, and calculating the construction depth of the drill holes 7 according to the length of the single drill pipe 13, and transmitting the monitoring information to the multi-information processing through the data line 9. 8.
  • the various sensors used above can also carry the information transmission function, send the information through the radio, and directly receive the wireless information by using the multi-information processor 8, and can omit the sensor and the multi-information.
  • the multi-information processor 8 Based on the collected information, the multi-information processor 8 automatically analyzes the amount of gas discharged from the borehole 7 to different locations, the amount of coal dust, and the torque of the drill, providing data for the prediction of coal and gas outburst danger, and then establishing the corresponding coal and gas.
  • the hazard prediction model is highlighted, and these parameters are used to predict the risk of coal and gas outburst, thus completing the integrated drilling and testing technology for coal and gas outburst.

Abstract

A coal and gas burst risk parameter drilling and predicting integrated method. In a process of constructing and drilling (7) a coal bed by a drilling machine (1), a guide pipe (12) is arranged in an opening of a drilled hole (7), a slag collector (11) and a gas exhaust pipe (3) are connected through the guide pipe (12), a gas concentration sensor (4) and a flow speed sensor (5) are arranged in the gas exhaust pipe (3), a weight sensor (10) is arranged at the bottom of the slag collector (11), a counter (2) and a torque sensor (6) are arranged on the drilling machine (1); during drilling (7), coal dust enters the slag collector (11) through the guide pipe (12), the coal dust weight information is transmitted to a multi-information processor (8) by the weight sensor (10); the gas information is transmitted to the multi-information processor (8) by the gas concentration sensor (4) and the flow speed sensor (5); the torque of the drilling machine (1) and the quantity of drill stems (13) are transmitted to the multi-information processor (8) by the torque sensor (6) and the counter (2) on the drilling machine (1); and the burst risk of coal and gas in a region is predicted. The coal and gas burst risk parameter drilling and predicting integrated method provides multi-information quantity for the prediction of the burst risk of the coal and the gas, so that the accuracy for predicting the burst risk of the coal and the gas is improved.

Description

煤与瓦斯突出危险性参数钻测一体化方法  Coal and gas outburst dangerous parameter drilling and testing integration method 技术领域Technical field
本发明涉及煤与瓦斯突出危险性参数钻测一体化方法，尤其是一种煤与瓦斯突出危险性信息快速采集方法，在钻孔施工过程中自动采集钻孔不同位置处的钻屑量、瓦斯涌出量、钻机扭矩等参数，为煤与瓦斯突出危险性准确预测提供数据。 The invention relates to an integrated method for drilling and measuring dangerous parameters of coal and gas outburst, in particular to a rapid collection method for risk information of coal and gas outburst, which automatically collects the amount of drill cuttings and gas at different positions of the drilling hole during the drilling construction process. Parameters such as gushing volume and rig torque provide data for accurate prediction of coal and gas outburst risk.
背景技术Background technique
煤与瓦斯突出是危害最为严重的矿井灾害之一，煤与瓦斯突出危险性的准确预测为防治煤与瓦斯突出最重要的一环。目前，矿井对煤与瓦斯突出危险性预测技术采取的预测指标都过于单一，主要采用《防治煤与瓦斯突出规定》中提供的单一指标和复合指标进行预测，并且都通过少数的几个预测钻孔进行预测；虽然一些高校和科研单位研制的如电磁辐射、微震、声发射技术等技术从一定程度上丰富了预测信息量，但是这些技术仍然不够成熟，也同样都是针煤对岩体的某一方面信息进行突出危险性预测，搜集的预测信息不充分。由于煤与瓦斯突出受地应力、瓦斯压力、煤体强度、采掘过程等多方面因素的影响，目前任何一种预测技术都不能捕集足够多的信息进行准确预测。在矿井正常打钻过程中会有多种信息如钻孔瓦斯实时涌出量、钻屑量、钻机扭矩等参数都能反映煤与瓦斯突出突出危险性信息，但是由于这些信息的实时采集难度比较大而被放弃，从而对准确预测煤与瓦斯突出危险性造成重大的信息浪费。目前煤与瓦斯突出危险性预测仅仅通过几个预测钻孔进行，而没有对钻孔施工过程中的信息进行采集，捕集到的信息量受限，突出危险性预测不准确。 Coal and gas outburst is one of the most serious mine disasters. The accurate prediction of the danger of coal and gas outburst is the most important part of preventing coal and gas outburst. At present, the prediction indicators adopted by the mine for coal and gas outburst danger prediction technology are too single, mainly using the single indicator and composite index provided in the Regulations on Prevention of Coal and Gas Outburst, and all of them are predicted by a few Hole prediction; although some universities and research institutes such as electromagnetic radiation, microseismic, acoustic emission technology and other technologies have enriched the forecast information amount to a certain extent, but these technologies are still not mature enough, and they are also needle coal to rock mass. In some aspects, the information is highlighted and the predicted information is insufficient. Because coal and gas outburst are affected by many factors such as ground stress, gas pressure, coal strength, and mining process, no single prediction technology can capture enough information for accurate prediction. In the normal drilling process of the mine, there are a variety of information such as the real-time gushing volume of the drilling gas, the amount of cuttings, the torque of the drilling rig and other parameters can reflect the dangerous information of coal and gas outburst, but the difficulty of real-time collection of these information is compared. Large and abandoned, thus causing significant information waste for accurately predicting the risk of coal and gas outburst. At present, the prediction of coal and gas outburst hazard is only carried out through several predictive drilling holes. The information collected during the drilling process is not collected, the amount of information captured is limited, and the risk prediction is not accurate.
技术问题technical problem
本发明的目的是提供一种煤与瓦斯突出危险性参数钻测一体化方法，通过在钻机打钻的过程中安设瓦斯浓度传感器、气体流速传感器、扭矩传感器、重量传感器、计数器，实时监测钻机打钻过程中的瓦斯浓度、瓦斯涌出量、钻机扭矩、钻屑量等随着钻孔深度的变化，为分析工作面前方瓦斯、地应力等分布提供重要信息指导，为煤与瓦斯突出危险性的准确预测提供信息。 The object of the present invention is to provide an integrated drilling and measuring method for coal and gas outburst risk parameters, and to monitor the drilling machine by installing a gas concentration sensor, a gas flow rate sensor, a torque sensor, a weight sensor and a counter during the drilling process of the drilling machine. Gas concentration, gas emission, drilling machine torque, cuttings volume, etc. during drilling process provide important information guidance for analyzing the distribution of gas and ground stress in front of the working face, which is the risk of coal and gas outburst. Accurate forecasts provide information.
技术解决方案Technical solution
本发明的煤与瓦斯突出危险性参数钻测一体化方法，包括以下步骤：The integrated method for drilling and measuring coal and gas outburst risk parameters of the invention comprises the following steps:
a、采用钻机向煤层内施工钻孔的过程中，在钻孔孔口内安装导流管，在导流管的外露段下方设置与其相连的集渣器，在导流管的外露段上方设置与其相连的瓦斯抽放管，在瓦斯抽放管内分别设有与多元信息处理器相连的瓦斯浓度传感器和流速传感器，在集渣器的底部设有与多元信息处理器相连的重量传感器，在钻机上安装计数器和扭矩传感器；a. In the process of drilling the drilling hole into the coal seam, a diversion pipe is installed in the drilling hole, and a slag collector connected thereto is arranged below the exposed section of the guiding pipe, and is disposed above the exposed section of the guiding pipe The connected gas drainage pipe has a gas concentration sensor and a flow velocity sensor connected to the multi-information processor in the gas drainage pipe, and a weight sensor connected to the multi-information processor at the bottom of the slag collector, on the drilling machine Install counter and torque sensor;
b、当钻杆穿过导流管实施钻孔时，密封导流管外露端，煤屑经导流管进入集渣器，集渣器底部的重量传感器定时或实时将煤屑重量信息通过数据线或无线传输给多元信息处理器；b. When the drill pipe is drilled through the draft tube, the exposed end of the guide tube is sealed, and the coal dust enters the slag trap through the draft tube, and the weight sensor at the bottom of the slag collector passes the data of the weight information of the coal chip in real time or in real time. Wire or wireless transmission to a multi-information processor;
同时瓦斯气体经导流管进入瓦斯抽放管，瓦斯抽放管内的瓦斯浓度传感器和流速传感器分别将瓦斯浓度信息和流速信息通过数据线或无线传输给多元信息处理器；At the same time, the gas gas enters the gas drainage pipe through the draft tube, and the gas concentration sensor and the flow rate sensor in the gas drainage pipe respectively transmit the gas concentration information and the flow rate information to the multi-information processor through the data line or wirelessly;
同时钻机上的扭矩传感器将钻机扭矩，通过数据线或无线实时传输到多元信息处理器；At the same time, the torque sensor on the rig transmits the rig torque to the multi-information processor in real time through the data line or wireless;
同时钻机上的计数器记录钻孔施工过程中使用钻杆的数量，并将监测信息通过数据线或无线传输到多元信息处理器；At the same time, the counter on the rig records the number of drill pipes used during the drilling construction, and transmits the monitoring information to the multi-information processor through the data line or wirelessly;
c、多元信息处理器将收集到的信息进行自动处理，得到钻孔施工到不同位置处瓦斯放散量、煤屑量、钻机扭矩的数据，进而预测该区域内煤与瓦斯的突出危险性。c. The multi-information processor automatically processes the collected information to obtain data on the amount of gas discharge, coal dust, and rig torque at different locations, and predicts the outstanding risk of coal and gas in the area.
有益效果Beneficial effect
本发明能够在煤层钻孔施工过程中实时采集钻孔过程中钻屑量、瓦斯涌出量、钻机钻杆扭矩等参数随钻孔深度的变化规律，实现钻测一体，节约了煤与瓦斯突出危险性预测的时间和工程量，这些信息能反映工作面前方地应力、瓦斯压力等参数的变化和分布规律，为采掘工作面煤与瓦斯突出危险性的准确及时的预测提供了多元化信息数据。可以提高煤与瓦斯突出危险性预测的准确性和及时性。由于能在钻机打钻的过程中实时采集钻屑量、瓦斯涌出量、钻机扭矩、钻孔深度等信息，给煤与瓦斯突出危险性的准确预测提供充分的信息资料，提高煤与瓦斯突出危险性预测的准确性。其方法简单，操作方便，效果好，具有广泛的实用性。 The invention can collect the parameters such as the amount of cuttings, the amount of gas emission, the torque of the drilling rig and the drilling depth in the drilling process during the drilling process of the coal seam, and realize the integration of drilling and testing, saving coal and gas outburst. The time and quantity of risk prediction, which can reflect the variation and distribution of parameters such as ground stress and gas pressure in front of the working face, and provide diversified information data for accurate and timely prediction of the risk of coal and gas outburst in mining face. . It can improve the accuracy and timeliness of coal and gas outburst risk prediction. Since it can collect the amount of cuttings, gas emission, drilling torque, drilling depth and other information in real time during the drilling process of the drilling rig, it can provide sufficient information to accurately predict the risk of coal and gas outburst, and improve coal and gas outburst. The accuracy of the risk prediction. The method is simple, convenient to operate, good in effect, and has wide practicality.
附图说明DRAWINGS
图1是本发明的煤与瓦斯突出危险性参数钻测一体化方法示意图。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the integrated method of drilling and measuring the risk parameter of coal and gas outburst according to the present invention.
图中：1—钻机；2—计数器；3—瓦斯抽放管；4—瓦斯浓度传感器；5—流速传感器；6—扭矩传感器；7—钻孔；8—多元信息处理器；9—数据线；10—重量传感器；11—集渣器；12—导流管；13—钻杆；14—煤层。In the figure: 1 - drilling rig; 2 - counter; 3 - gas drainage pipe; 4 - gas concentration sensor; 5 - flow rate sensor; 6 - torque sensor; 7 - drilling; 8 - multi-information processor; 10 - weight sensor; 11 - slag collector; 12 - diversion tube; 13 - drill pipe; 14 - coal seam.
本发明的实施方式Embodiments of the invention
如图1所示，本发明的煤与瓦斯突出危险性参数钻测一体化方法，包括采用钻机1、计数器2、瓦斯浓度传感器4、多元信息处理器8、导流管12、钻杆13；首先采用钻机1向煤层内施工钻孔7，在钻孔7孔口段嵌入导流管12，使得导流管12开口端在孔内，而另一端在孔外，在孔外的一端截面上留设圆孔，在导流管12的外露段下方设置与其相连的集渣器11，在导流管12的外露段上方设置与导流管12相连的瓦斯抽放管3，在瓦斯抽放管3内分别设置一个瓦斯浓度传感器4和一个流速传感器5，在集渣器11的底部设有重量传感器10，并在钻机1上安装计数器2和扭矩传感器6，通过数据线9分别将计数器2、扭矩传感器6、瓦斯浓度传感器4、流速传感器5、重量传感器10与多元信息处理器8相连接，然后通过钻机1将钻杆13从导流管12中穿过向前实施钻孔7；钻杆13穿过导流管12截面上的圆孔并保持密封，同时确保导流管12和钻孔7紧密贴合，使得钻孔7施工过程中从钻孔7内释放的瓦斯和煤屑从导流管12内向外排出； As shown in Figure 1, the integrated method for drilling and measuring the risk of coal and gas outburst of the present invention comprises using a drilling machine 1, a counter 2, a gas concentration sensor 4, a multi-information processor 8, a draft tube 12, a drill pipe 13; Firstly, the drilling machine 1 is used to construct the drilling hole 7 into the coal seam, and the guiding tube 12 is embedded in the hole 7 of the drilling hole, so that the open end of the guiding tube 12 is in the hole, and the other end is outside the hole, and the end portion is outside the hole. A circular hole is left, and a slag collector 11 connected thereto is disposed below the exposed section of the draft tube 12, and a gas drainage pipe 3 connected to the draft tube 12 is disposed above the exposed section of the draft tube 12, and is drained in the gas. A gas concentration sensor 4 and a flow rate sensor 5 are respectively disposed in the tube 3, a weight sensor 10 is disposed at the bottom of the slag collector 11, and a counter 2 and a torque sensor 6 are mounted on the rig 1, and the counter 2 is respectively connected through the data line 9. The torque sensor 6, the gas concentration sensor 4, the flow rate sensor 5, the weight sensor 10 are connected to the multi-information processor 8, and then the drill pipe 13 is passed through the drill pipe 1 from the draft tube 12 to perform the drilling 7 forward; The rod 13 passes through a circular hole in the section of the draft tube 12 Remains sealed while ensuring that the draft tube 12 and the bore 7 in close contact, such that the drilling construction 7 released from the inner bore 7 is discharged outward from the gas and coal dust inside the draft tube 12;
当钻杆13穿过导流管12实施钻孔7时，密封导流管12外露端，煤屑经导流管12进入集渣器11，抽采钻孔7施工过程中释放的瓦斯，同时瓦斯气体经导流管12进入瓦斯抽放管3，瓦斯抽放管3内的瓦斯浓度传感器4和流速传感器5分别将瓦斯浓度信息和流速信息通过数据线9或无线传输给多元信息处理器8；通过瓦斯抽放管3排出，避免瓦斯直接涌向巷道内而容易导致瓦斯超限，同时通过瓦斯浓度传感器4和流速传感器5可方便测试瓦斯涌出浓度和流动速度；抽采钻孔7施工过程中释放的钻屑通过集渣器11收集，可避免喷孔过程中煤屑抛出伤人，同时方便测试排出的钻屑量。集渣器11底部的重量传感器10定时或实时将煤屑重量信息通过数据线9或无线传输给多元信息处理器8；When the drill pipe 13 is bored through the draft tube 12, the exposed end of the guide tube 12 is sealed, and the coal dust enters the slag trapper 11 through the draft tube 12, and the gas released during the construction of the drill hole 7 is extracted. The gas gas enters the gas drainage pipe 3 through the draft tube 12, and the gas concentration sensor 4 and the flow rate sensor 5 in the gas drainage pipe 3 respectively transmit the gas concentration information and the flow rate information to the multi-information processor 8 through the data line 9 or wirelessly. It is discharged through the gas drainage pipe 3 to prevent the gas from directly rushing into the roadway and easily lead to gas overrun. At the same time, the gas concentration and flow velocity can be easily tested by the gas concentration sensor 4 and the flow velocity sensor 5; The drill cuttings released during the process are collected by the slag collector 11 to prevent the coal dust from being thrown and wounded during the nozzle hole, and at the same time, it is convenient to test the amount of drill cuttings discharged. The weight sensor 10 at the bottom of the slag collector 11 periodically or in real time transmits the coal dust weight information to the multi-information processor 8 through the data line 9 or wirelessly;
同时钻机1上的扭矩传感器6将钻机扭矩，通过数据线9或无线实时传输到多元信息处理器8；同时钻机1上的计数器2记录钻孔7施工过程中使用钻杆13的数量，并将监测信息通过数据线9或无线传输到多元信息处理器8；多元信息处理器8将收集到的信息进行自动处理，得到钻孔7施工到不同位置处瓦斯放散量、煤屑量、钻机扭矩的数据，进而预测该区域内煤与瓦斯的突出危险性。At the same time, the torque sensor 6 on the rig 1 transmits the rig torque to the multi-information processor 8 in real time through the data line 9 or wirelessly; at the same time, the counter 2 on the rig 1 records the number of drill rods 13 used during the construction of the borehole 7 and will The monitoring information is transmitted to the multi-information processor 8 through the data line 9 or wirelessly; the multi-information processor 8 automatically processes the collected information to obtain the amount of gas discharge, the amount of coal dust, and the torque of the rig that are drilled to the different positions. The data, in turn, predicts the outstanding hazard of coal and gas in the area.
为了测试钻孔7施工过程中瓦斯实时涌出量，在瓦斯抽放管3内设有瓦斯浓度传感器4和流速传感器5分别实时监测瓦斯抽放管3内的瓦斯浓度和风流速度，流速传感器5测试的速度和瓦斯抽放管3的尺寸可以计算空气气体实时流量，也可以直接用流量传感器直接测试抽放管3内流量，监测信息通过数据线9传输到多元信息处理器8。从钻孔7内排出的钻屑在自重的作用下进入集渣器11，集渣器11内设有重量传感器10，实时监测煤屑重量，监测信息通过数据线9传输到多元信息处理器8。In order to test the real-time gas emission amount during the construction of the borehole 7, a gas concentration sensor 4 and a flow velocity sensor 5 are arranged in the gas drainage pipe 3 to monitor the gas concentration and the air flow velocity in the gas drainage pipe 3, respectively, and the flow velocity sensor 5 The speed of the test and the size of the gas drainage pipe 3 can be used to calculate the real-time flow of the air gas, and the flow rate in the discharge pipe 3 can be directly tested directly by the flow sensor, and the monitoring information is transmitted to the multi-information processor 8 through the data line 9. The drill cuttings discharged from the borehole 7 enter the slag collector 11 under the action of its own weight, and the weight sensor 10 is disposed in the slag collector 11 to monitor the weight of the coal dust in real time, and the monitoring information is transmitted to the multi-information processor 8 through the data line 9. .
钻机1设有扭矩传感器6，扭矩传感器可以装在钻杆13上、水辫上或者其他能够测试钻机扭矩的位置，实时监测钻机1的扭矩，扭矩传感器6也可以采用应变片代替，通过应变量计算钻机扭矩，监测信息通过数据线9传输到多元信息处理器8。钻机1上设有计数器2，记录钻孔过程中使用钻杆13的数量，并根据单根钻杆13的长度计算钻孔7的施工深度，并将监测信息通过数据线9传输到多元信息处理器8。The drilling machine 1 is provided with a torque sensor 6, which can be mounted on the drill pipe 13, on the water raft or other position capable of testing the torque of the rig, and monitors the torque of the rig 1 in real time. The torque sensor 6 can also be replaced by a strain gauge, passing the strain The rig torque is calculated and the monitoring information is transmitted to the multi-information processor 8 through the data line 9. The rig 1 is provided with a counter 2 for recording the number of drill pipes 13 used in the drilling process, and calculating the construction depth of the drill holes 7 according to the length of the single drill pipe 13, and transmitting the monitoring information to the multi-information processing through the data line 9. 8.
上述使用的各种传感器除了能够实时监测相应信息，同时也可以带有信息发射功能，将信息通过无线电的形式发送出来，并采用多元信息处理器8直接接收无线信息，可以省略掉传感器和多元信息处理器8中间的数据线9。In addition to the real-time monitoring of the corresponding information, the various sensors used above can also carry the information transmission function, send the information through the radio, and directly receive the wireless information by using the multi-information processor 8, and can omit the sensor and the multi-information. The data line 9 in the middle of the processor 8.
多元信息处理器8根据收集到的信息自动分析钻孔7施工到不同位置处瓦斯放散量、煤屑量、钻机扭矩，为煤与瓦斯突出危险性预测提供数据，进而通过建立相应的煤与瓦斯突出危险性预测模型，采用这些参数进行煤与瓦斯突出危险性的预测，从而完成煤与瓦斯突出危险性钻测一体化技术。Based on the collected information, the multi-information processor 8 automatically analyzes the amount of gas discharged from the borehole 7 to different locations, the amount of coal dust, and the torque of the drill, providing data for the prediction of coal and gas outburst danger, and then establishing the corresponding coal and gas. The hazard prediction model is highlighted, and these parameters are used to predict the risk of coal and gas outburst, thus completing the integrated drilling and testing technology for coal and gas outburst.

Claims (1)

  1. 一种煤与瓦斯突出危险性钻测一体化方法，其特征在于包括以下步骤： The invention relates to a method for integrating dangerous drilling and measuring of coal and gas outburst, which comprises the following steps:
    a、采用钻机（1）向煤层内施工钻孔（7）的过程中，在钻孔（7）孔口内安装导流管（12），在导流管（12）的外露段下方设置与其相连的集渣器（11），在导流管（12）的外露段上方设置与其相连的瓦斯抽放管（3），在瓦斯抽放管（3）内分别设有与多元信息处理器(8)相连的瓦斯浓度传感器（4）和流速传感器（5），在集渣器（11）的底部设有与多元信息处理器(8)相连的重量传感器(10)，在钻机（1）上安装计数器（2）和扭矩传感器（6）；a. Using the drilling rig (1) to install the drilling hole (7) into the coal seam, install a draft tube (12) in the hole of the drilling hole (7), and connect it to the lower part of the exposed section of the draft tube (12). The slag collector (11) is provided with a gas drainage pipe (3) connected to the exposed section of the draft tube (12), and a multi-information processor (8) is arranged in the gas drainage pipe (3). a connected gas concentration sensor (4) and a flow rate sensor (5), and a weight sensor (10) connected to the multi-information processor (8) at the bottom of the slag collector (11), mounted on the rig (1) Counter (2) and torque sensor (6);
    b、当钻杆（13）穿过导流管（12）实施钻孔(7)时，密封导流管（12）外露端，煤屑经导流管（12）进入集渣器（11），集渣器（11）底部的重量传感器(10)定时或实时将煤屑重量信息通过数据线（9）或无线传输给多元信息处理器(8)；b. When the drill pipe (13) is drilled (7) through the draft tube (12), the exposed end of the guide tube (12) is sealed, and the coal dust enters the slag collector through the draft tube (12) (11) The weight sensor (10) at the bottom of the slag trap (11) periodically or in real time transmits the weight information of the coal dust to the multi-information processor (8) through the data line (9) or wirelessly;
    同时瓦斯气体经导流管（12）进入瓦斯抽放管（3），瓦斯抽放管（3）内的瓦斯浓度传感器（4）和流速传感器（5）分别将瓦斯浓度信息和流速信息通过数据线（9）或无线定时或实时传输给多元信息处理器(8)；At the same time, the gas gas enters the gas drainage pipe (3) through the draft tube (12), and the gas concentration sensor (4) and the flow rate sensor (5) in the gas drainage pipe (3) respectively pass the gas concentration information and the flow rate information through the data. Line (9) or wirelessly timed or real time transmitted to the multi-information processor (8);
    同时钻机（1）上的扭矩传感器（6）将钻机扭矩，通过数据线（9）或无线定时或实时传输到多元信息处理器（8）；At the same time, the torque sensor (6) on the drilling rig (1) transmits the rig torque to the multi-information processor (8) through the data line (9) or wirelessly or in real time;
    同时钻机（1）上的计数器（2）记录钻孔（7）施工过程中使用钻杆（13）的数量，并将监测信息通过数据线（9）或无线传输到多元信息处理器（8）；At the same time, the counter (2) on the drilling rig (1) records the number of drill pipes (13) used during the drilling (7) construction, and transmits the monitoring information to the multi-information processor (8) via the data line (9) or wirelessly. ;
    c、多元信息处理器（8）将收集到的信息进行自动处理，得到钻孔（7）施工到不同位置处瓦斯放散量、煤屑量、钻机扭矩的数据，进而预测该区域内煤与瓦斯的突出危险性。 c. The multi-information processor (8) automatically processes the collected information to obtain data of gas discharge, coal dust, and rig torque at different positions of the borehole (7), thereby predicting coal and gas in the area. Prominent danger.
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