WO2025123620A1 - Coal-mine underground composite mud pulse measurement while drilling system and method - Google Patents
Coal-mine underground composite mud pulse measurement while drilling system and method Download PDFInfo
- Publication number
- WO2025123620A1 WO2025123620A1 PCT/CN2024/098364 CN2024098364W WO2025123620A1 WO 2025123620 A1 WO2025123620 A1 WO 2025123620A1 CN 2024098364 W CN2024098364 W CN 2024098364W WO 2025123620 A1 WO2025123620 A1 WO 2025123620A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- guide ring
- flow channel
- rotor
- drilling
- 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.)
- Pending
Links
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
- E21B47/14—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
Definitions
- the invention belongs to the technical field of measurement while drilling, and in particular relates to a composite mud pulse measurement while drilling system and method for underground coal mines.
- Directional drilling construction in coal mines is an important way and safety measure for gas control and extraction, water hazard prevention, geological structure exploration and fire control, and the measurement while drilling system is the key equipment to achieve accurate and efficient directional drilling construction.
- drilling trajectory parameters azimuth, inclination, tool face
- drilling engineering parameters torque, drilling pressure, vibration, temperature, speed, internal and external annular pressure
- geological parameters azimuth gamma, resistivity
- the drilling tools are required to be high.
- the mud positive pulse generator overcomes the problems of the wired measurement while drilling system, the transmission rate is low.
- both cannot meet the needs of large data transmission.
- the advantage of the continuous wave mud pulse measurement while drilling system is that it has a fast transmission speed and can meet the needs of large data transmission. It is the focus of current research and development.
- the continuous wave mud pulse measurement while drilling system is relatively mature in the field of petroleum, but it is still a blank in the field of underground coal mine drilling, and there are no related instruments, papers, or reports. Due to the particularity of underground coal mine drilling, the aperture size and "coal safety" requirements limit the possibility of using petroleum instruments in underground coal mines.
- the types of parameters obtained are diverse, but it is not necessary to upload all types of parameters at the same time. Instead, the required parameter types are selected according to actual needs. Therefore, multi-type parameter uploads are mainly uploaded in alternating (small data volume) or combined (large data volume) ways.
- the mud pulse measurement while drilling system generally adopts the bottom hole power supply form. Due to the size of the drill bit and the requirements of "coal safety", the battery capacity cannot be expanded indefinitely. The mud pulse measurement system is widely used in the field of drilling and drilling.
- the pulse-while-drilling measurement system has low power consumption and can upload small amounts of data, it cannot meet the needs of uploading large amounts of data; the continuous pulse-while-drilling measurement system can upload large and small amounts of data, but it has the problem of high power consumption when uploading small amounts of data, and the service life cannot be guaranteed.
- the object of the present invention is to provide a composite mud pulse measurement while drilling system and method for underground coal mines to solve the above-mentioned problems such as data uploading and high power consumption.
- the present invention adopts the following technical solutions to achieve the above problems:
- a composite mud pulse while-drilling measurement system for underground coal mines comprising a rotary valve short circuit, a positive pulse short circuit, a drive short circuit and a circuit conversion joint connected in sequence;
- the rotary valve short circuit comprises a rotary valve outer tube, and a circuit converter, a motor housing, a universal shaft, a stator and a rotor which are arranged in the rotary valve outer tube and are connected in sequence; a servo motor is arranged in the motor housing, a plurality of stator flow passages are arranged on the stator, and a plurality of rotor flow passages are arranged on the rotor;
- the positive pulse short circuit includes a positive pulse outer tube, and a piston sleeve, a piston cylinder, a piston outer tube, a piston upper end cover, a spring, a piston, a guide ring support, a guide ring and a filter joint arranged in the positive pulse outer tube;
- the front end of the filter joint is connected to the rotor, the rear end of the filter joint is connected to the central flow passage of the guide ring, and a conical flow passage can be formed between the guide ring and the guide ring support;
- the front end of the piston is connected to the central flow passage of the guide ring, the rear end of the piston is deeply inserted into the piston cavity surrounded by the piston cylinder, the piston outer tube and the piston upper end cover, and the rear end of the piston is in contact with the spring in the piston cavity;
- the driving short circuit is provided with a solenoid valve, which can control the piston action in the positive pulse short circuit to control the blocking or opening of the tapered flow channel, thereby controlling the generation of a pressure positive pulse;
- the front end of the rotary valve short circuit is connected in sequence to multiple drill rods, water feeders, pressure transmitters, and orifice explosion-proof computers; the rear end of the circuit conversion joint is connected in sequence to a battery tube short circuit and a while-drilling measurement short circuit;
- the while-drilling measurement short circuit includes an acquisition module and a main control module, the acquisition module can acquire drilling trajectory parameters, drilling engineering parameters and geological parameters, the main control module can encode and modulate the acquired parameters and control the operation of the servo motor in the rotary valve short circuit, so as to control the rotation of the rotor to cause periodic changes in the overlapping area of the stator flow channel and the rotor flow channel, thereby forming a continuous mud pulse; the main control module can also control the action of the internal electromagnetic valve of the drive short circuit to form a mud positive pulse.
- the present invention also includes the following technical features:
- the circuit converter includes an outer ring and an inner ring.
- the outer ring is fixed to the inner wall of the outer tube of the rotary valve.
- a wire bridge is connected between the inner ring and the outer ring.
- a fan-shaped flow channel is formed between adjacent wire bridges.
- End covers and a center aviation plug are respectively installed at the front and rear ends of the inner ring.
- a second guide ring is sleeved on the outer ring. The second insulated wire in the wire bridge connects the second guide ring and the center aviation plug.
- the motor housing comprises a cylindrical motor protection shell and a servo motor therein; a plurality of rectangular limit blocks are provided on the outer wall of the motor protection shell, and limit holes are provided at the ends of the rectangular limit blocks, and the motor protection shell is limited to the inner wall of the outer tube of the rotary valve through the limit holes and the fixing bolts therein;
- the servo motor has a built-in reducer, the servo motor is axially hard-connected to the motor protection shell, the main shaft of the servo motor passes through the rear end of the motor protection shell, and the main shaft is dynamically sealed with the rear end of the motor protection shell, the servo motor terminal is connected to the front end aviation plug of the motor protection shell, and the front end aviation plug is matched with the center aviation plug;
- the front end of the universal shaft is connected to the main shaft of the servo motor, and the rear end is connected to the front end of the rotor, so as to stably transmit the power of the servo motor to the rotor.
- the stator is a disc-shaped structure, and the stator is fixed to the inner wall of the outer tube of the rotary valve through multiple positioning holes and bolts on its outer wall; a central through hole is provided at the center of the stator, and the rotor can pass through the central through hole, and the stator is provided with four stator flow channels evenly distributed at 90° around the circumference, and the stator flow channels are fan-shaped, and the contour of the stator flow channel near the inflow end of the flushing liquid is chamfered by 5mm to form a guide groove structure with a guide function;
- the rotor comprises a rotor bearing outer ring, bearing balls and a rotor bearing inner disk arranged from outside to inside, and a plurality of rotor flow passages are arranged on the rotor bearing inner disk; the center of the rotor bearing inner disk is a transmission shaft, the front end of the transmission shaft is connected to the universal shaft, and the rear end of the transmission shaft is provided with a center positioning hole.
- the rotary valve outer tube includes a rotary valve outer tube shell, a wire hole is provided in the wall of the rotary valve outer tube shell, a third insulated wire is provided in the wire hole, and the front and rear ends of the third insulated wire are respectively connected to a fourth guide ring and a third guide ring embedded in the inner wall of the rotary valve outer tube shell;
- the second guide ring and the fourth guide ring are pressed tightly, so that the second insulated wire and the third insulated wire are connected.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Earth Drilling (AREA)
Abstract
Description
本发明属于随钻测量技术领域，具体涉及一种煤矿井下复合型泥浆脉冲随钻测量系统及方法。The invention belongs to the technical field of measurement while drilling, and in particular relates to a composite mud pulse measurement while drilling system and method for underground coal mines.
煤矿井下定向钻进施工是进行瓦斯治理与抽采、水害防治、地质构造探查和火灾治理等重要途径和安全保障措施，而随钻测量系统是实现定向钻孔准确、高效施工的关键装备。随着煤矿开采水平的提高、地质条件日趋复杂及煤矿智能化、透明化建设的推进，对钻孔轨迹测量的精确性、钻进工程参数测量的多样性、地质参数测量的实时性提出了更高的要求，单一的轨迹参数测量已经不能满足煤矿智能化、透明化建设要求。Directional drilling construction in coal mines is an important way and safety measure for gas control and extraction, water hazard prevention, geological structure exploration and fire control, and the measurement while drilling system is the key equipment to achieve accurate and efficient directional drilling construction. With the improvement of coal mining level, increasingly complex geological conditions and the advancement of intelligent and transparent construction of coal mines, higher requirements are put forward for the accuracy of drilling trajectory measurement, the diversity of drilling engineering parameter measurement, and the real-time measurement of geological parameters. Single trajectory parameter measurement can no longer meet the requirements of intelligent and transparent construction of coal mines.
透明工作面建设、智能钻探、煤岩层识别、地质异常体辨识作为煤矿智能化建设关键环节，需要通过施工定向钻孔获取的钻孔轨迹参数(方位、倾角、工具面)、钻进工程参数(扭矩、钻压、振动、温度、转速、内外环空压力)、地质参数(方位伽马、电阻率)等多种类型参数支撑，目前煤矿井下钻探施工领域则以有线随钻测量、泥浆正脉冲随钻测量方式为主，主要通过测量钻孔轨迹参数(方位、倾角、工具面)来指导定向钻孔施工，但是有线随钻测量系统信号长距离传输可靠性差，传输距离受限，此外对钻具要求较高。而泥浆正脉冲发生器虽然克服了有线随钻测量系统存在的问题，但是传输速率较低，随着技术的发展，两者均不能满足大数据量传输的需要。连续波泥浆脉冲随钻测量系统的优点是传输速度快，可以满足大数据量传输需求，是目前研发的重点。但是连续波泥浆脉冲随钻测量系统在石油领域相对成熟，煤矿井下钻探领域还属空白，未见相关的仪器、论文、报道。由于煤矿井下钻探的特殊性，孔径大小和“煤安”要求限制了石油类仪器在煤矿井下使用的可能性。As key links in the intelligent construction of coal mines, transparent working face construction, intelligent drilling, coal and rock layer identification, and geological anomaly identification require the support of various types of parameters such as drilling trajectory parameters (azimuth, inclination, tool face), drilling engineering parameters (torque, drilling pressure, vibration, temperature, speed, internal and external annular pressure), and geological parameters (azimuth gamma, resistivity) obtained through directional drilling. At present, the field of underground drilling construction in coal mines is mainly based on wired measurement while drilling and mud positive pulse measurement while drilling. Directional drilling construction is mainly guided by measuring drilling trajectory parameters (azimuth, inclination, tool face). However, the signal transmission reliability of the wired measurement while drilling system is poor over long distances, and the transmission distance is limited. In addition, the drilling tools are required to be high. Although the mud positive pulse generator overcomes the problems of the wired measurement while drilling system, the transmission rate is low. With the development of technology, both cannot meet the needs of large data transmission. The advantage of the continuous wave mud pulse measurement while drilling system is that it has a fast transmission speed and can meet the needs of large data transmission. It is the focus of current research and development. However, the continuous wave mud pulse measurement while drilling system is relatively mature in the field of petroleum, but it is still a blank in the field of underground coal mine drilling, and there are no related instruments, papers, or reports. Due to the particularity of underground coal mine drilling, the aperture size and "coal safety" requirements limit the possibility of using petroleum instruments in underground coal mines.
并且随着各类型测量仪器的不断集成，获取参数类型多样，但并不需要所有类型参数同时上传，而是根据实际需求选择所需的参数类型，因此多类型参数上传主要以交替(小数据量)或者组合(大数据量)的方式上传，此外泥浆脉冲随钻测量系统普遍采用孔底供电形式，受钻具尺寸、“煤安”要求限制，电池容量不能无限制扩容，泥浆正脉 冲随钻测量系统虽然功耗较小可以实现小数据量上传但是无法满足大数据量上传；连续脉冲随钻测量系统可以实现大、小数据量上传，但是存在小数据量上传功耗较大的问题，无法保证使用周期。And with the continuous integration of various types of measuring instruments, the types of parameters obtained are diverse, but it is not necessary to upload all types of parameters at the same time. Instead, the required parameter types are selected according to actual needs. Therefore, multi-type parameter uploads are mainly uploaded in alternating (small data volume) or combined (large data volume) ways. In addition, the mud pulse measurement while drilling system generally adopts the bottom hole power supply form. Due to the size of the drill bit and the requirements of "coal safety", the battery capacity cannot be expanded indefinitely. The mud pulse measurement system is widely used in the field of drilling and drilling. Although the pulse-while-drilling measurement system has low power consumption and can upload small amounts of data, it cannot meet the needs of uploading large amounts of data; the continuous pulse-while-drilling measurement system can upload large and small amounts of data, but it has the problem of high power consumption when uploading small amounts of data, and the service life cannot be guaranteed.
发明内容Summary of the invention
针对现有技术中存在的不足，本发明的目的在于，提供一种煤矿井下复合型泥浆脉冲随钻测量系统及方法，解决上述数据上传以及功耗大等问题。In view of the deficiencies in the prior art, the object of the present invention is to provide a composite mud pulse measurement while drilling system and method for underground coal mines to solve the above-mentioned problems such as data uploading and high power consumption.
为了解决上述技术问题，本发明采用如下技术方案予以实现：In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:
一种煤矿井下复合型泥浆脉冲随钻测量系统，包括依次相接的旋转阀短接、正脉冲短接、驱动短接和电路转换接头；A composite mud pulse while-drilling measurement system for underground coal mines, comprising a rotary valve short circuit, a positive pulse short circuit, a drive short circuit and a circuit conversion joint connected in sequence;
所述旋转阀短接包括旋转阀外管，以及设在旋转阀外管内且依次相连的电路转换器、电机箱体、万向轴、定子和转子；电机箱体内设有伺服电机，定子上设有多个定子过流通道，转子上设有多个转子过流通道；The rotary valve short circuit comprises a rotary valve outer tube, and a circuit converter, a motor housing, a universal shaft, a stator and a rotor which are arranged in the rotary valve outer tube and are connected in sequence; a servo motor is arranged in the motor housing, a plurality of stator flow passages are arranged on the stator, and a plurality of rotor flow passages are arranged on the rotor;
所述正脉冲短接包括正脉冲外管，以及设在正脉冲外管内的活塞外套、活塞缸体、活塞外管、活塞上端盖、弹簧、活塞、导流环支座、导流环和过滤接头；所述过滤接头前端与转子相连，过滤接头后端与导流环的中心过流通道连通，导流环和导流环支座之间能围成锥形流道；活塞前端连通导流环的中心过流通道，活塞后端深入由活塞缸体、活塞外管和活塞上端盖围成的活塞腔体内，活塞后端与活塞腔体内的弹簧接触；The positive pulse short circuit includes a positive pulse outer tube, and a piston sleeve, a piston cylinder, a piston outer tube, a piston upper end cover, a spring, a piston, a guide ring support, a guide ring and a filter joint arranged in the positive pulse outer tube; the front end of the filter joint is connected to the rotor, the rear end of the filter joint is connected to the central flow passage of the guide ring, and a conical flow passage can be formed between the guide ring and the guide ring support; the front end of the piston is connected to the central flow passage of the guide ring, the rear end of the piston is deeply inserted into the piston cavity surrounded by the piston cylinder, the piston outer tube and the piston upper end cover, and the rear end of the piston is in contact with the spring in the piston cavity;
所述驱动短接中设有电磁阀，其能控制正脉冲短接中的活塞动作，以控制封堵或打开锥形流道，从而控制产生压力正脉冲；The driving short circuit is provided with a solenoid valve, which can control the piston action in the positive pulse short circuit to control the blocking or opening of the tapered flow channel, thereby controlling the generation of a pressure positive pulse;
所述旋转阀短接前端依次连接多个钻杆、送水器、压力变送器、孔口防爆计算机；所述电路转换接头后端依次连接电池筒短接、随钻测量短接；随钻测量短接包括采集模块和主控模块，采集模块能采集钻孔轨迹参数、钻进工程参数和地质参数，主控模块能对采集的参数进行编码调制并能控制旋转阀短接内伺服电机工作，以通过控制转子转动使定子过流通道和转子过流通道重叠面积发生周期性变化，形成泥浆连续脉冲；主控模块还能控制驱动短接内部电磁阀动作，形成泥浆正脉冲。The front end of the rotary valve short circuit is connected in sequence to multiple drill rods, water feeders, pressure transmitters, and orifice explosion-proof computers; the rear end of the circuit conversion joint is connected in sequence to a battery tube short circuit and a while-drilling measurement short circuit; the while-drilling measurement short circuit includes an acquisition module and a main control module, the acquisition module can acquire drilling trajectory parameters, drilling engineering parameters and geological parameters, the main control module can encode and modulate the acquired parameters and control the operation of the servo motor in the rotary valve short circuit, so as to control the rotation of the rotor to cause periodic changes in the overlapping area of the stator flow channel and the rotor flow channel, thereby forming a continuous mud pulse; the main control module can also control the action of the internal electromagnetic valve of the drive short circuit to form a mud positive pulse.
本发明还包括如下技术特征：The present invention also includes the following technical features:
具体的，所述电路转换器包括外环和内环，外环固定于旋转阀外管内壁，内环和外环之间连有过线桥，相邻过线桥之间为扇形过流通道，内环前后两端分别装有端盖和中心航插，外环上套设第二导环，过线桥内的第二绝缘导线连接第二导环和中心航插。 Specifically, the circuit converter includes an outer ring and an inner ring. The outer ring is fixed to the inner wall of the outer tube of the rotary valve. A wire bridge is connected between the inner ring and the outer ring. A fan-shaped flow channel is formed between adjacent wire bridges. End covers and a center aviation plug are respectively installed at the front and rear ends of the inner ring. A second guide ring is sleeved on the outer ring. The second insulated wire in the wire bridge connects the second guide ring and the center aviation plug.
具体的，所述电机箱体包括圆柱状电机保护壳及其内的伺服电机；电机保护壳外壁设有多个矩形限位块，矩形限位块端部设有限位孔，电机保护壳通过限位孔及其内的固定螺栓限位于旋转阀外管内壁；伺服电机内置减速器，伺服电机与电机保护壳轴向硬链接，伺服电机的主轴穿过电机保护壳后端且主轴与电机保护壳后端部动密封，伺服电机接线端与电机保护壳前端航插连接，前端航插与中心航插配接；Specifically, the motor housing comprises a cylindrical motor protection shell and a servo motor therein; a plurality of rectangular limit blocks are provided on the outer wall of the motor protection shell, and limit holes are provided at the ends of the rectangular limit blocks, and the motor protection shell is limited to the inner wall of the outer tube of the rotary valve through the limit holes and the fixing bolts therein; the servo motor has a built-in reducer, the servo motor is axially hard-connected to the motor protection shell, the main shaft of the servo motor passes through the rear end of the motor protection shell, and the main shaft is dynamically sealed with the rear end of the motor protection shell, the servo motor terminal is connected to the front end aviation plug of the motor protection shell, and the front end aviation plug is matched with the center aviation plug;
所述万向轴前端连接伺服电机的主轴，后端连接转子的前端，以将伺服电机动力稳定传递至转子。The front end of the universal shaft is connected to the main shaft of the servo motor, and the rear end is connected to the front end of the rotor, so as to stably transmit the power of the servo motor to the rotor.
具体的，所述定子为盘状结构，定子通过其外壁的多个定位孔和螺栓限位固定于旋转阀外管内壁；定子中心设有中心通孔，转子能穿过中心通孔，定子上设有呈90°圆周均布的四个定子过流通道，定子过流通道呈扇形，定子过流通道靠近冲洗液流入端轮廓做5mm倒角处理，使其形成具有导流作用的导流槽结构；Specifically, the stator is a disc-shaped structure, and the stator is fixed to the inner wall of the outer tube of the rotary valve through multiple positioning holes and bolts on its outer wall; a central through hole is provided at the center of the stator, and the rotor can pass through the central through hole, and the stator is provided with four stator flow channels evenly distributed at 90° around the circumference, and the stator flow channels are fan-shaped, and the contour of the stator flow channel near the inflow end of the flushing liquid is chamfered by 5mm to form a guide groove structure with a guide function;
所述转子包括由外至内布设的转子轴承外环、轴承球和转子轴承内盘，转子轴承内盘上设有多个转子过流通道；转子轴承内盘中心为传动轴，传动轴前端与万向轴相连，传动轴后端设有中心定位孔。The rotor comprises a rotor bearing outer ring, bearing balls and a rotor bearing inner disk arranged from outside to inside, and a plurality of rotor flow passages are arranged on the rotor bearing inner disk; the center of the rotor bearing inner disk is a transmission shaft, the front end of the transmission shaft is connected to the universal shaft, and the rear end of the transmission shaft is provided with a center positioning hole.
具体的，所述旋转阀外管包括旋转阀外管壳体，旋转阀外管壳体壁内设有通线孔，通线孔内设有第三绝缘导线，第三绝缘导线前后两端分别连接嵌在旋转阀外管壳体内壁的第四导环和第三导环；Specifically, the rotary valve outer tube includes a rotary valve outer tube shell, a wire hole is provided in the wall of the rotary valve outer tube shell, a third insulated wire is provided in the wire hole, and the front and rear ends of the third insulated wire are respectively connected to a fourth guide ring and a third guide ring embedded in the inner wall of the rotary valve outer tube shell;
电路转换器与旋转阀外管配接后，第二导环与第四导环压紧，从而使第二绝缘导线与所述第三绝缘导线导通。After the circuit converter is matched with the outer tube of the rotary valve, the second guide ring and the fourth guide ring are pressed tightly, so that the second insulated wire and the third insulated wire are connected.
具体的，所述过滤接头为中空结构，过滤接头前端设有定位凸台以插接配合中心定位孔，后端设有过滤器出水口，过滤接头侧壁设有多个过滤孔，能有效过滤直径≥1mm的固体颗粒，冲洗液从过滤接头外壁流入并沿过滤器出水口流出；过滤接头后端连接导流环；Specifically, the filter joint is a hollow structure, a positioning boss is provided at the front end of the filter joint to be plugged into the central positioning hole, a filter outlet is provided at the rear end, and a plurality of filter holes are provided on the side wall of the filter joint, which can effectively filter solid particles with a diameter of ≥1mm, and the flushing liquid flows in from the outer wall of the filter joint and flows out along the filter outlet; the rear end of the filter joint is connected to a guide ring;
具体的，所述导流环设在正脉冲外管内壁台阶面上并通过旋转阀外管顶紧，导流环中心设有中心过流通道，中心过流通道与过滤接头的过滤器出水口连通；导流环前部为圆盘状，导流环后部为锥形凸台；导流环前部设有导流环过流通道；所述导流环支座中心设有锥形通孔；导流环前部后端面压紧导流环支座前端面，使导流环后部与导流环支座的锥形通孔组合形成锥形流道，锥形流道出口成弧状； Specifically, the guide ring is arranged on the step surface of the inner wall of the positive pulse outer tube and is tightened by the outer tube of the rotary valve. A central flow passage is arranged at the center of the guide ring, and the central flow passage is connected with the filter outlet of the filter joint; the front part of the guide ring is disc-shaped, and the rear part of the guide ring is a conical boss; the front part of the guide ring is provided with a guide ring flow passage; the center of the guide ring support is provided with a conical through hole; the rear end face of the front part of the guide ring presses the front end face of the guide ring support, so that the rear part of the guide ring and the conical through hole of the guide ring support are combined to form a conical flow channel, and the outlet of the conical flow channel is arc-shaped;
所述导流环支座后端依次为活塞外套、活塞、活塞上端盖、活塞外管、弹簧、活塞缸体；活塞前端穿过活塞外套并深入导流环中心过流通道；活塞后端位于活塞腔体并顶至弹簧；正常状态下，活塞顶紧活塞上端盖内端面，此时活塞的活塞头堵住锥形流道出口，活塞为中空结构使冲洗液沿中心过流通道流经活塞进入活塞腔体中；当活塞顶至活塞缸体外端面，此时活塞的活塞头完全打开锥形流道出口。The rear end of the guide ring support is sequentially composed of a piston sleeve, a piston, a piston upper end cover, a piston outer tube, a spring, and a piston cylinder body; the front end of the piston passes through the piston sleeve and penetrates into the central flow channel of the guide ring; the rear end of the piston is located in the piston cavity and presses against the spring; in a normal state, the piston presses against the inner end face of the piston upper end cover, at which time the piston head blocks the outlet of the tapered flow channel, and the piston is a hollow structure so that the flushing liquid flows through the piston along the central flow channel and enters the piston cavity; when the piston presses against the outer end face of the piston cylinder body, the piston head completely opens the outlet of the tapered flow channel.
具体的，所述活塞缸体为筒状结构，活塞杆缸体周向设有均布的定位巴掌，定位巴掌上均设有螺栓孔，活塞缸体内为活塞腔体，活塞缸体尾部为驱动短接连接端，驱动短接连接端用于配接驱动短接内部仪器串驱动头。Specifically, the piston cylinder body is a cylindrical structure, and the piston rod cylinder body is provided with evenly distributed positioning palms in the circumference, and the positioning palms are provided with bolt holes. The piston cylinder body is a piston cavity, and the tail of the piston cylinder body is a drive short-circuit connection end, which is used to match the drive short-circuit internal instrument string drive head.
具体的，所述电路转换接头为双母结构，包括电路转换接头缸体，电路转换接头缸体一侧外壁设有三个呈120°圆周均布的过线孔，过线孔沟通电路转换接头缸体一侧外壁端面及中心通孔，过线孔中均设有第一绝缘导线，电路转换接头缸体一侧外壁端面设有第一导环，第一导环连接第一绝缘导线，中心通孔一端设有航空插头，中心通孔另一端设有电池接头，第一导环通过第一绝缘导线连接电池接头，电池接头通过第一绝缘导线连接航空插头。Specifically, the circuit conversion connector is a double-mother structure, including a circuit conversion connector cylinder body, and the outer wall of one side of the circuit conversion connector cylinder body is provided with three wire passing holes evenly distributed in a circle of 120°, the wire passing holes communicate with the end face of the outer wall on one side of the circuit conversion connector cylinder body and the center through hole, and a first insulated wire is provided in the wire passing holes, and the end face of the outer wall on one side of the circuit conversion connector cylinder body is provided with a first guide ring, the first guide ring is connected to the first insulated wire, one end of the center through hole is provided with an aviation plug, and the other end of the center through hole is provided with a battery connector, the first guide ring is connected to the battery connector through the first insulated wire, and the battery connector is connected to the aviation plug through the first insulated wire.
一种所述的煤矿井下复合型泥浆脉冲随钻测量系统的工控方法，步骤如下：控制泥浆泵注水压力值，当压力信号大于设定值K1且小于K2时，采用模式一进行数据采集，当压力信号大于设定值K2时，采用模式二进行数据采集，其中模式一只进行钻孔轨迹参数测量，模式二除了采集钻孔轨迹参数外还采集钻进工程参数、地质参数，具体参数类别根据随钻测量短接集成的采集模块种类决定；An industrial control method for a composite mud pulse measurement while drilling system in an underground coal mine, comprising the following steps: controlling the water injection pressure value of a mud pump, and when the pressure signal is greater than a set value K1 and less than K2, adopting mode 1 for data acquisition, and when the pressure signal is greater than a set value K2, adopting mode 2 for data acquisition, wherein mode 1 measures drilling trajectory parameters, and mode 2 collects drilling engineering parameters and geological parameters in addition to collecting drilling trajectory parameters, and the specific parameter category is determined according to the type of acquisition module integrated by the measurement while drilling short circuit;
模式一：采集模块采集钻孔轨迹参数，主控模块控制伺服电机控制转子旋转，转子旋转过程中，定子过流通道与转子过流通道流道重叠面积发生变化，记录ΔPMax即定子过流通道与转子过流通道流道重叠面积最大位置，并且制动伺服电机传动轴在此位置，该过程为伺服电机自检调零过程；此时驱动短接内电磁阀发送控制信号，驱动电磁阀小阀头动作从而控制正脉冲短接活塞动作，按照特定编码封堵和打开导流环与导流环支座组合形成的锥形流道，从而产生压力正脉冲；Mode 1: The acquisition module acquires drilling trajectory parameters, and the main control module controls the servo motor to control the rotor rotation. During the rotation of the rotor, the overlapping area of the stator flow channel and the rotor flow channel changes, and ΔP Max , that is, the maximum overlapping area of the stator flow channel and the rotor flow channel, is recorded. The drive shaft of the brake servo motor is at this position. This process is the servo motor self-test zeroing process; at this time, the short-circuited internal solenoid valve is driven to send a control signal, driving the small valve head of the solenoid valve to move, thereby controlling the positive pulse short-circuited piston to move, and according to the specific code, the conical flow channel formed by the guide ring and the guide ring support is blocked and opened, thereby generating a pressure positive pulse;
模式二：采集模块采集钻孔轨迹参数的同时采集钻进工程参数、地质参数，主控模块对采集的数据进行编码、调制，此时主控模块同样控制伺服电机执行自检调零过程后，按照特定编码控制伺服电机驱动转子旋转，定子过流通道与转子过流通道流道重叠面积发生周期性变化，形成泥浆连续脉冲。 Mode 2: The acquisition module collects drilling trajectory parameters while collecting drilling engineering parameters and geological parameters. The main control module encodes and modulates the collected data. At this time, the main control module also controls the servo motor to perform the self-test zeroing process, and then controls the servo motor to drive the rotor to rotate according to a specific code. The overlapping area of the stator flow channel and the rotor flow channel changes periodically, forming a continuous mud pulse.
本发明与现有技术相比，具有如下技术效果：Compared with the prior art, the present invention has the following technical effects:
本发明复合型泥浆脉冲随钻测量系统通过侧壁布线形式将正脉冲及连续脉冲发生装置集成到一起，可以实现正脉冲短接、旋转阀短接独立工作，满足小数据量上传的同时满足大数据量上传，正脉冲短接、旋转阀短接交替工作有效降低了系统功耗。The composite mud pulse measurement while drilling system of the present invention integrates positive pulse and continuous pulse generating devices together through side wall wiring, and can realize independent operation of positive pulse short circuit and rotary valve short circuit, which can meet the requirements of uploading small data volume and large data volume at the same time. The alternating operation of positive pulse short circuit and rotary valve short circuit effectively reduces the power consumption of the system.
本发明系统适合井下多种施工工况，可以通过正脉冲上传钻孔轨迹参数指导常规定向钻进施工，同时可以通过连续脉冲上传钻孔轨迹参数、钻进工程参数及地质参数等多类型参数，可以有效指导本煤层定向钻孔、探放水孔、地质异常体探查孔等多类型定向钻孔施工。The system of the present invention is suitable for various construction conditions underground. It can upload drilling trajectory parameters through positive pulses to guide conventional directional drilling construction. At the same time, it can upload multiple types of parameters such as drilling trajectory parameters, drilling engineering parameters and geological parameters through continuous pulses. It can effectively guide multiple types of directional drilling construction such as directional drilling of coal seams, water exploration and drainage holes, and geological anomaly exploration holes.
本发明系统具有两种工作模式，通过控制供水压力进行模式选择，从而实现不同工况条件下的模式切换，该流程操作简单。The system of the present invention has two working modes. The mode selection is performed by controlling the water supply pressure, thereby realizing mode switching under different working conditions. The process is simple to operate.
图1是本发明系统整体连接示意图；FIG1 is a schematic diagram of the overall connection of the system of the present invention;
图2是本发明系统的脉冲发生器组件剖视图；FIG2 is a cross-sectional view of a pulse generator assembly of the system of the present invention;
图3是本发明系统的脉冲发生器组件电路转换器主视图；FIG3 is a front view of a circuit converter of a pulse generator assembly of the system of the present invention;
图4是本发明系统的脉冲发生器组件电路转换器B-B剖视图；Fig. 4 is a cross-sectional view of a pulse generator assembly circuit converter B-B of the system of the present invention;
图5是本发明系统的脉冲发生器组件A-A剖视图；Fig. 5 is a cross-sectional view of the pulse generator assembly A-A of the system of the present invention;
图6是本发明系统的脉冲发生器组件定子主视图；Fig. 6 is a front view of the stator of the pulse generator assembly of the system of the present invention;
图7是本发明系统的脉冲发生器组件定子C-C剖视图；Fig. 7 is a C-C cross-sectional view of the stator of the pulse generator assembly of the system of the present invention;
图8是本发明系统的脉冲发生器组件转子主视图；Fig. 8 is a front view of the rotor of the pulse generator assembly of the system of the present invention;
图9是本发明系统的脉冲发生器组件转子D-D剖视图；Fig. 9 is a D-D cross-sectional view of the rotor of the pulse generator assembly of the system of the present invention;
图10是本发明系统的旋转阀短接侧壁过线外管剖视图；10 is a cross-sectional view of the outer tube of the short-circuited side wall of the rotary valve of the present invention;
图11是本发明系统的脉冲发生器组件过滤接头剖视图；Fig. 11 is a cross-sectional view of a filter connector of a pulse generator assembly of the system of the present invention;
图12是本发明系统的脉冲发生器组件导流环主视图；FIG12 is a front view of the guide ring of the pulse generator assembly of the system of the present invention;
图13是本发明系统的脉冲发生器组件导流环E-E剖视图；Fig. 13 is a cross-sectional view E-E of the guide ring of the pulse generator assembly of the system of the present invention;
图14是本发明系统的脉冲发生器组件下缸体主视图；14 is a front view of the lower cylinder of the pulse generator assembly of the system of the present invention;
图15是本发明系统的脉冲发生器组件下缸体F-F剖视图；Fig. 15 is a cross-sectional view F-F of the lower cylinder of the pulse generator assembly of the system of the present invention;
图16是本发明系统的电路转换接头剖视图；Fig. 16 is a cross-sectional view of a circuit conversion connector of the system of the present invention;
图17是本发明系统使用方法流程图。FIG. 17 is a flow chart of a method for using the system of the present invention.
图中各个标号的含义为：
1.旋转阀短接，2.正脉冲短接，3.驱动短接，4.电路转换接头；
101.电路转换器，102.电机箱体，103.定子，104.转子，105.旋转阀外管，106.万向
轴；
201.过滤接头，202.导流环，203.导流环支座，204.活塞，205.活塞上端盖，206.活
塞外管，207.活塞缸体，208.弹簧，209.活塞外套，210.正脉冲外管；
401.电路转换接头缸体，402.第一绝缘导线，403.第一导环，404.航空插头，405.
电池接头；
1011.中心航插，1012.扇形过流通道，1013.端盖，1014.第二导环，1015.第二绝缘
导线；
1021.电机保护壳，1022.固定螺栓；
1031.定子过流通道，1032.中心通孔，1033.定位孔；
1041.转子轴承外环，1042.转子轴承内盘，1043.轴承球，1044.转子过流通道，1045.
传动轴，1046.中心定位孔，1047.挡环；
1051.旋转阀外管壳体，1052.第三导环，1053.第四导环，1054.壳体定位孔，1055.
第三绝缘导线；
2011.定位凸台，2012.过滤孔，2013.过滤器出水口；
2021.导流环过流通道，2022.锥形凸台，2023.中心过流通道；
2071.定位巴掌，2072.螺栓孔，2073.活塞腔体，2074.驱动短接连接端。The meaning of each number in the figure is:
1. Rotary valve short circuit, 2. Positive pulse short circuit, 3. Drive short circuit, 4. Circuit conversion connector;
101. circuit converter, 102. motor housing, 103. stator, 104. rotor, 105. rotary valve outer tube, 106. universal shaft;
201. filter joint, 202. guide ring, 203. guide ring support, 204. piston, 205. piston upper end cover, 206. piston outer tube, 207. piston cylinder, 208. spring, 209. piston outer sleeve, 210. positive pulse outer tube;
401. Circuit conversion joint cylinder, 402. First insulated wire, 403. First guide ring, 404. Aviation plug, 405.
Battery connector;
1011. center aviation plug, 1012. fan-shaped current passage, 1013. end cover, 1014. second guide ring, 1015. second insulated wire;
1021. Motor protection housing, 1022. Fixing bolts;
1031. stator flow passage, 1032. center through hole, 1033. positioning hole;
1041. Rotor bearing outer ring, 1042. Rotor bearing inner disk, 1043. Bearing ball, 1044. Rotor flow channel, 1045.
Transmission shaft, 1046. Center positioning hole, 1047. Retaining ring;
1051. Rotary valve outer tube housing, 1052. Third guide ring, 1053. Fourth guide ring, 1054. Housing positioning hole, 1055.
a third insulated conductor;
2011. Positioning boss, 2012. Filter hole, 2013. Filter outlet;
2021. flow channel of the guide ring, 2022. conical boss, 2023. central flow channel;
2071. Positioning palm, 2072. Bolt hole, 2073. Piston cavity, 2074. Drive short-circuit connection end.
以下给出本发明的具体实施例，需要说明的是本发明并不局限于以下具体实施例，凡在本申请技术方案基础上做的等同变换均落入本发明的保护范围。Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.
实施例1：Embodiment 1:
如图1至图16所示，本实施例提供一种煤矿井下复合型泥浆脉冲随钻测量系统，包括依次相接的旋转阀短接1、正脉冲短接2、驱动短接3和电路转换接头4。As shown in FIG. 1 to FIG. 16 , this embodiment provides a composite mud pulse measurement while drilling system for an underground coal mine, comprising a rotary valve short circuit 1, a positive pulse short circuit 2, a drive short circuit 3 and a circuit conversion connector 4 connected in sequence.
旋转阀短接1包括旋转阀外管105，以及设在旋转阀外管105内且依次相连的电路转换器101、电机箱体102、万向轴106、定子103和转子104；电机箱体102内设有伺服电机，定子103上设有多个定子过流通道1031，转子104上设有多个转子过流通道1044。The rotary valve short circuit 1 includes a rotary valve outer tube 105, and a circuit converter 101, a motor housing 102, a universal joint 106, a stator 103 and a rotor 104 which are arranged in the rotary valve outer tube 105 and are connected in sequence; a servo motor is arranged in the motor housing 102, a plurality of stator flow passages 1031 are arranged on the stator 103, and a plurality of rotor flow passages 1044 are arranged on the rotor 104.
正脉冲短接2包括正脉冲外管210，以及设在正脉冲外管210内的活塞外套209、活塞缸体207、活塞外管206、活塞上端盖205、弹簧208、活塞204、导流环支座203、 导流环202和过滤接头201；过滤接头201前端与转子104相连，过滤接头201后端与导流环202的中心过流通道2023连通，导流环202和导流环支座203之间能围成锥形流道；活塞204前端连通导流环202的中心过流通道2023，活塞204后端深入由活塞缸体207、活塞外管206和活塞上端盖205围成的活塞腔体2073内，活塞204后端与活塞腔体2073内的弹簧208接触；活塞204能轴向往复运动，且活塞204能封堵或打开锥形流道。The positive pulse short circuit 2 includes a positive pulse outer tube 210, and a piston jacket 209, a piston cylinder 207, a piston outer tube 206, a piston upper end cover 205, a spring 208, a piston 204, a guide ring support 203, The guide ring 202 and the filter joint 201; the front end of the filter joint 201 is connected to the rotor 104, and the rear end of the filter joint 201 is connected to the central flow channel 2023 of the guide ring 202, and a conical flow channel can be formed between the guide ring 202 and the guide ring support 203; the front end of the piston 204 is connected to the central flow channel 2023 of the guide ring 202, and the rear end of the piston 204 penetrates into the piston cavity 2073 surrounded by the piston cylinder body 207, the piston outer tube 206 and the piston upper end cover 205, and the rear end of the piston 204 contacts the spring 208 in the piston cavity 2073; the piston 204 can reciprocate axially, and the piston 204 can block or open the conical flow channel.
驱动短接3中设有电磁阀，其能控制正脉冲短接2中的活塞204动作，以控制封堵或打开导流环202与导流环支座203之间的锥形流道，从而控制产生压力正脉冲。具体的，锥形流道打开时，液流畅通压力值是稳定值，当锥形流道关闭时，压力升高，锥形流道交替开关产生的压力脉冲为正脉冲。The driving short circuit 3 is provided with an electromagnetic valve, which can control the action of the piston 204 in the positive pulse short circuit 2 to control the blocking or opening of the tapered flow channel between the guide ring 202 and the guide ring support 203, thereby controlling the generation of a pressure positive pulse. Specifically, when the tapered flow channel is opened, the fluid flow pressure value is a stable value, and when the tapered flow channel is closed, the pressure increases, and the pressure pulse generated by the alternate opening and closing of the tapered flow channel is a positive pulse.
当不开泵时，活塞靠弹簧顶推力封堵锥形流道；开泵且不发脉冲信号时，通过流体压力差使得活塞右移一段距离，直至弹簧的力与阀头的作用力相平衡，此时锥形流道打开一定面积，不再增大；驱动短接为常规产品，该驱动短接内部有电磁阀结构，会根据特定编码规则伸出或收回电磁阀阀头，当开泵且发脉冲信号时，驱动短接内部电磁阀关闭(即伸出电磁阀阀头)，此时，活塞下端密闭腔不再与低压区连通，通过中心孔与高压区连通，活塞下端面受高压作用从而使活塞上移减小锥形流道面积，从而系统压力升高，当电磁阀阀头打开通道后，活塞下移，压力恢复正常，即产生一个正脉冲。When the pump is not turned on, the piston blocks the tapered flow channel by the thrust of the spring; when the pump is turned on and no pulse signal is sent, the piston moves to the right for a distance through the fluid pressure difference until the force of the spring is balanced with the force of the valve head. At this time, the tapered flow channel opens a certain area and no longer increases; the drive short circuit is a conventional product. There is an electromagnetic valve structure inside the drive short circuit, which will extend or retract the electromagnetic valve head according to specific coding rules. When the pump is turned on and a pulse signal is sent, the electromagnetic valve inside the drive short circuit is closed (that is, the electromagnetic valve head is extended). At this time, the closed cavity at the lower end of the piston is no longer connected to the low-pressure area, but is connected to the high-pressure area through the center hole. The lower end face of the piston is subjected to the high pressure, which causes the piston to move upward to reduce the area of the tapered flow channel, thereby increasing the system pressure. When the electromagnetic valve head opens the channel, the piston moves downward, and the pressure returns to normal, that is, a positive pulse is generated.
泥浆泵开泵后液流流入，分别沿着锥形流道及过滤接头流入活塞内通道，当不发送脉冲时，驱动短接内部的电磁阀属于打开状态(即收回电磁阀阀头)，导致活塞下端腔体为低压区，活塞头上端压力高于下端，液流流入锥形流道推动活塞右移打开锥形流道；锥形流道流出的液体流经活塞缸体和正脉冲外管之间的环隙。After the mud pump is turned on, liquid flows in along the tapered flow channel and the filter joint and flows into the inner channel of the piston. When no pulse is sent, the solenoid valve inside the drive short circuit is in an open state (i.e., the solenoid valve head is retracted), resulting in a low-pressure area in the cavity at the lower end of the piston. The pressure at the upper end of the piston head is higher than that at the lower end, and the liquid flows into the tapered flow channel, pushing the piston to move right to open the tapered flow channel; the liquid flowing out of the tapered flow channel flows through the annular gap between the piston cylinder and the positive pulse outer tube.
旋转阀短接1前端依次连接多个钻杆、送水器、压力变送器、孔口防爆计算机；电路转换接头4后端依次连接电池筒短接、随钻测量短接；电池筒短接能为复合型泥浆脉冲随钻测量系统供电；随钻测量短接包括采集模块和主控模块，采集模块能采集钻孔轨迹参数、钻进工程参数和地质参数，主控模块能对采集的参数进行编码调制并能控制旋转阀短接1内伺服电机工作，以通过控制转子104转动使定子过流通道1031和转子过流通道1044重叠面积发生周期性变化，形成泥浆连续脉冲；主控模块还能控制驱动短接3内部电磁阀动作，形成泥浆正脉冲。 The front end of the rotary valve short circuit 1 is connected to multiple drill rods, water feeders, pressure transmitters, and orifice explosion-proof computers in sequence; the rear end of the circuit conversion joint 4 is connected to the battery tube short circuit and the drilling measurement short circuit in sequence; the battery tube short circuit can power the composite mud pulse drilling measurement system; the drilling measurement short circuit includes an acquisition module and a main control module, the acquisition module can acquire drilling trajectory parameters, drilling engineering parameters and geological parameters, the main control module can encode and modulate the acquired parameters and control the servo motor in the rotary valve short circuit 1 to operate, so as to control the rotation of the rotor 104 to make the overlapping area of the stator flow channel 1031 and the rotor flow channel 1044 change periodically, thereby forming a continuous mud pulse; the main control module can also control the action of the internal electromagnetic valve of the drive short circuit 3 to form a mud positive pulse.
电路转换器101包括外环和内环，外环固定于旋转阀外管105内壁，内环和外环之间连有过线桥，相邻过线桥之间为扇形过流通道1012，内环前后两端分别装有端盖1013和中心航插1011，外环上套设第二导环1014，过线桥内的第二绝缘导线1015连接第二导环1014和中心航插1011；具体的，本实施例中，外环和内环均与旋转阀外管105同轴，过线桥沿外环径向布设，三个过线桥沿周向均布。The circuit converter 101 includes an outer ring and an inner ring. The outer ring is fixed to the inner wall of the outer tube 105 of the rotary valve. A wire bridge is connected between the inner ring and the outer ring. A fan-shaped flow channel 1012 is provided between adjacent wire bridges. End covers 1013 and a central aviation plug 1011 are provided at the front and rear ends of the inner ring respectively. A second guide ring 1014 is sleeved on the outer ring. A second insulated conductor 1015 in the wire bridge connects the second guide ring 1014 and the central aviation plug 1011. Specifically, in the present embodiment, the outer ring and the inner ring are both coaxial with the outer tube 105 of the rotary valve. The wire bridges are arranged radially along the outer ring, and the three wire bridges are evenly distributed along the circumference.
电机箱体102包括圆柱状电机保护壳1021及其内的伺服电机；电机保护壳1021外壁设有多个矩形限位块，矩形限位块端部设有限位孔，电机保护壳1021通过限位孔及其内的固定螺栓1022限位于旋转阀外管105内壁；本实施例中，矩形限位块有三个并沿电机保护壳1021外壁圆周均布；伺服电机内置减速器，伺服电机与电机保护壳1021轴向硬链接，伺服电机的主轴穿过电机保护壳1021后端且主轴与电机保护壳1021后端部动密封，伺服电机接线端与电机保护壳1021前端航插连接，前端航插与中心航插1011配接；万向轴106前端连接伺服电机的主轴，后端连接转子104的前端，以将伺服电机动力稳定传递至转子104。The motor case 102 includes a cylindrical motor protection shell 1021 and a servo motor therein; the outer wall of the motor protection shell 1021 is provided with a plurality of rectangular limit blocks, and the ends of the rectangular limit blocks are provided with limit holes, and the motor protection shell 1021 is limited to the inner wall of the outer tube 105 of the rotary valve through the limit holes and the fixing bolts 1022 therein; in this embodiment, there are three rectangular limit blocks and they are evenly distributed along the circumference of the outer wall of the motor protection shell 1021; the servo motor has a built-in reducer, the servo motor and the motor protection shell 1021 are axially hard-connected, the main shaft of the servo motor passes through the rear end of the motor protection shell 1021 and the main shaft and the rear end of the motor protection shell 1021 are dynamically sealed, the servo motor terminal is connected to the front end aviation plug of the motor protection shell 1021, and the front end aviation plug is matched with the center aviation plug 1011; the front end of the universal joint 106 is connected to the main shaft of the servo motor, and the rear end is connected to the front end of the rotor 104, so as to stably transmit the power of the servo motor to the rotor 104.
定子103为盘状结构，定子103通过其外壁的多个定位孔1033和螺栓限位固定于旋转阀外管105内壁；本实施例中，定位孔1033有三个并沿定子103外壁圆周均布；定子103中心设有中心通孔1032，转子104能穿过中心通孔1032，定子103上设有呈90°圆周均布的四个定子过流通道1031，定子过流通道1031呈扇形，定子过流通道1031靠近冲洗液流入端轮廓做5mm倒角处理，使其形成具有导流作用的导流槽结构。The stator 103 is a disc-shaped structure, and the stator 103 is fixed to the inner wall of the outer tube 105 of the rotary valve by multiple positioning holes 1033 on its outer wall and bolts; in this embodiment, there are three positioning holes 1033 and they are evenly distributed along the circumference of the outer wall of the stator 103; a central through hole 1032 is provided in the center of the stator 103, and the rotor 104 can pass through the central through hole 1032. The stator 103 is provided with four stator flow channels 1031 evenly distributed at 90° around the circumference. The stator flow channels 1031 are fan-shaped, and the stator flow channels 1031 are chamfered by 5mm near the contour of the inflow end of the flushing liquid to form a guide groove structure with a guide function.
转子104包括由外至内布设的转子轴承外环1041、轴承球1043和转子轴承内盘1042，转子轴承内盘1042上设有多个转子过流通道1044；转子轴承内盘1042中心为传动轴1045，传动轴1045前端与万向轴106相连，传动轴1045后端设有中心定位孔1046；传动轴1045与万向轴106机械连接，且通过调整万向轴106与传动轴1045的连接深度控制转子104与定子103之间的距离，距离可调范围控制在2～5mm，从而控制压力脉冲幅值。转子轴承外环1041、轴承球1043、转子轴承内盘1042装配完成之后在冲洗液流入一侧的转子轴承外环1041端面焊接挡环1047，其主要作用是防止冲洗液沿着轴承球1043之间的缝隙卸压。中心定位孔1046与正脉冲短接2上部的过滤接头201配合连接，过滤接头201对转子104起到径向支撑作用，转子104外部的轴承结构起到径向限位的作用同时也能保证转子1044平稳旋转。 The rotor 104 includes a rotor bearing outer ring 1041, a bearing ball 1043 and a rotor bearing inner disk 1042 arranged from outside to inside, and a plurality of rotor flow passages 1044 are arranged on the rotor bearing inner disk 1042; the center of the rotor bearing inner disk 1042 is a transmission shaft 1045, the front end of the transmission shaft 1045 is connected to the universal shaft 106, and the rear end of the transmission shaft 1045 is provided with a central positioning hole 1046; the transmission shaft 1045 is mechanically connected to the universal shaft 106, and the distance between the rotor 104 and the stator 103 is controlled by adjusting the connection depth between the universal shaft 106 and the transmission shaft 1045, and the adjustable range of the distance is controlled within 2 to 5 mm, thereby controlling the pressure pulse amplitude. After the rotor bearing outer ring 1041, the bearing ball 1043 and the rotor bearing inner disk 1042 are assembled, a retaining ring 1047 is welded on the end face of the rotor bearing outer ring 1041 on the side where the flushing liquid flows in, and its main function is to prevent the flushing liquid from unloading along the gap between the bearing balls 1043. The central positioning hole 1046 is connected to the filter joint 201 on the upper part of the positive pulse short circuit 2. The filter joint 201 provides radial support for the rotor 104. The bearing structure outside the rotor 104 provides radial limiting function and can also ensure the smooth rotation of the rotor 104.
旋转阀外管105包括旋转阀外管壳体1051，旋转阀外管壳体1051壁内设有通线孔，通线孔内设有第三绝缘导线1055，第三绝缘导线1055前后两端分别连接嵌在旋转阀外管壳体1051内壁的第四导环1053和第三导环1052；具体的，旋转阀外管105采用侧壁布线结构，旋转阀外管壳体1051内壁设有三个呈120°圆周均布的通线孔，通线孔中均设有第三绝缘导线1055，第三绝缘导线1055两端分别连接第三导环1052、第四导环1053；旋转阀外管壳体1051侧壁有两组壳体定位孔1054，两组壳体定位孔1054均为三个且呈120°圆周均布，一组壳体定位孔1054用于限位固定电机保护壳1021，另一组壳体定位孔1054用于限位固定定子103。The rotary valve outer tube 105 includes a rotary valve outer tube shell 1051, a wire hole is provided in the wall of the rotary valve outer tube shell 1051, a third insulated wire 1055 is provided in the wire hole, and the front and rear ends of the third insulated wire 1055 are respectively connected to a fourth guide ring 1053 and a third guide ring 1052 embedded in the inner wall of the rotary valve outer tube shell 1051; specifically, the rotary valve outer tube 105 adopts a side wall wiring structure, and the inner wall of the rotary valve outer tube shell 1051 is provided with three 120° circumferentially evenly distributed A wire-passing hole is provided in each of the wire-passing holes, and two ends of the third insulated wire 1055 are respectively connected to a third guide ring 1052 and a fourth guide ring 1053; the side wall of the outer tube shell 1051 of the rotary valve is provided with two groups of shell positioning holes 1054, and both groups of shell positioning holes 1054 are three and evenly distributed in a circle of 120°, one group of shell positioning holes 1054 is used to limit and fix the motor protective shell 1021, and the other group of shell positioning holes 1054 is used to limit and fix the stator 103.
电路转换器101与旋转阀外管105配接后，第二导环1014与第四导环1053压紧，从而使第二绝缘导线1015与第三绝缘导线1055导通，导通后能用于给电机供电。同样地，正脉冲外管210及驱动短接3外管均采用同种布线原则，通过外管之间的配合连接使得各自的导环端面相互压紧从而导通线路。After the circuit converter 101 is matched with the rotary valve outer tube 105, the second guide ring 1014 is pressed against the fourth guide ring 1053, so that the second insulated wire 1015 and the third insulated wire 1055 are connected, and can be used to power the motor. Similarly, the positive pulse outer tube 210 and the drive short circuit 3 outer tube all adopt the same wiring principle, and the respective guide ring end faces are pressed against each other through the matching connection between the outer tubes to conduct the circuit.
过滤接头201为中空结构，过滤接头201前端设有定位凸台2011以插接配合中心定位孔1046，后端设有过滤器出水口2013，过滤接头201侧壁设有多个过滤孔2012，能有效过滤直径≥1mm的固体颗粒，冲洗液从过滤接头201外壁流入并沿过滤器出水口2013流出；过滤接头201后端连接导流环202。The filter joint 201 is a hollow structure. A positioning boss 2011 is provided at the front end of the filter joint 201 to be plugged into the central positioning hole 1046. A filter outlet 2013 is provided at the rear end. A plurality of filter holes 2012 are provided on the side wall of the filter joint 201, which can effectively filter solid particles with a diameter ≥ 1 mm. The flushing liquid flows into the outer wall of the filter joint 201 and flows out along the filter outlet 2013. The rear end of the filter joint 201 is connected to the guide ring 202.
导流环202设在正脉冲外管210内壁台阶面上并通过旋转阀外管105顶紧，导流环202中心设有中心过流通道2023，中心过流通道2023与过滤接头201的过滤器出水口2013连通；导流环202前部为圆盘状，导流环202后部为锥形凸台2022；导流环202前部设有三个呈120°圆周均布的导流环过流通道2021；导流环支座203中心设有锥形通孔；导流环202前部后端面压紧导流环支座203前端面，使导流环202后部与导流环支座203的锥形通孔组合形成锥形流道，锥形流道出口成弧状。The guide ring 202 is arranged on the step surface of the inner wall of the positive pulse outer tube 210 and is tightened by the rotary valve outer tube 105. A central flow channel 2023 is arranged in the center of the guide ring 202, and the central flow channel 2023 is connected with the filter outlet 2013 of the filter joint 201; the front part of the guide ring 202 is disc-shaped, and the rear part of the guide ring 202 is a conical boss 2022; the front part of the guide ring 202 is provided with three guide ring flow channels 2021 evenly distributed in a circle of 120°; a conical through hole is arranged in the center of the guide ring support 203; the rear end face of the front part of the guide ring 202 presses the front end face of the guide ring support 203, so that the rear part of the guide ring 202 and the conical through hole of the guide ring support 203 are combined to form a conical flow channel, and the outlet of the conical flow channel is arc-shaped.
导流环支座203后端依次为活塞外套209、活塞204、活塞上端盖205、活塞外管206、弹簧208、活塞缸体207；活塞204前端穿过活塞外套209并深入导流环202中心过流通道2023；活塞204后端位于活塞腔体2073并顶至弹簧208；正常状态下，活塞204顶紧活塞上端盖205内端面，此时活塞204的活塞204头堵住锥形流道出口，活塞204为中空结构使冲洗液沿中心过流通道2023流经活塞204进入活塞腔体2073中；活塞204能在腔体中自由移动一定距离，该距离为活塞上端盖205内端面到活塞缸体207 外端面之间的间距，当活塞204顶至活塞缸体207外端面，此时活塞204的活塞204头完全打开锥形流道出口。The rear end of the guide ring support 203 is in turn provided with a piston sleeve 209, a piston 204, a piston upper end cover 205, a piston outer tube 206, a spring 208, and a piston cylinder 207; the front end of the piston 204 passes through the piston sleeve 209 and penetrates into the central flow passage 2023 of the guide ring 202; the rear end of the piston 204 is located in the piston cavity 2073 and presses against the spring 208; in a normal state, the piston 204 presses against the inner end face of the piston upper end cover 205, at which time the piston 204 head of the piston 204 blocks the outlet of the conical flow passage, and the piston 204 is a hollow structure so that the flushing liquid flows through the piston 204 along the central flow passage 2023 and enters the piston cavity 2073; the piston 204 can freely move a certain distance in the cavity, which is the distance from the inner end face of the piston upper end cover 205 to the piston cylinder 207 The distance between the outer end surfaces is such that when the piston 204 reaches the outer end surface of the piston cylinder 207, the piston head 204 of the piston 204 completely opens the outlet of the conical flow channel.
活塞缸体207为筒状结构，活塞204杆缸体周向设有三个呈120°圆周均布的定位巴掌2071，定位巴掌2071上均设有螺栓孔2072，活塞缸体207内为活塞腔体2073，活塞缸体207尾部为驱动短接连接端2074，驱动短接连接端2074用于配接驱动短接3内部仪器串驱动头。The piston cylinder body 207 is a cylindrical structure, and the piston 204 rod cylinder body is circumferentially provided with three positioning legs 2071 evenly distributed in a circle of 120°. The positioning legs 2071 are each provided with a bolt hole 2072. The piston cylinder body 207 has a piston cavity 2073 inside, and the tail of the piston cylinder body 207 is a drive short-circuit connection end 2074, which is used to match the drive short-circuit 3 internal instrument string drive head.
电路转换接头4为双母结构，其作用是将侧壁布线结构转变为中心过线结构，从而配接后部电池筒短接内置的电池筒，使其可对上部驱动短接内部电磁阀及旋转阀短接1内部伺服电机供电；电路转换接头4包括电路转换接头缸体401，电路转换接头缸体401一侧外壁设有三个呈120°圆周均布的过线孔，过线孔沟通电路转换接头缸体401一侧外壁端面及中心通孔1032，过线孔中均设有第一绝缘导线402，电路转换接头缸体401一侧外壁端面设有第一导环403，第一导环403连接第一绝缘导线402，中心通孔1032一端设有航空插头404，中心通孔1032另一端设有电池接头405，第一导环403通过第一绝缘导线402连接电池接头405，电池接头405通过第一绝缘导线402连接航空插头404。The circuit conversion connector 4 is a double-mother structure, and its function is to transform the side wall wiring structure into a central wire-passing structure, so as to match the built-in battery cylinder of the rear battery cylinder short circuit, so that it can power the internal solenoid valve of the upper drive short circuit and the internal servo motor of the rotary valve short circuit 1; the circuit conversion connector 4 includes a circuit conversion connector cylinder 401, and the outer wall of one side of the circuit conversion connector cylinder 401 is provided with three wire-passing holes evenly distributed in a 120° circle, and the wire-passing holes communicate with the outer wall end face of one side of the circuit conversion connector cylinder 401 and the central through hole 1032, and the first insulated wire 402 is provided in the wire-passing holes, and the outer wall end face of one side of the circuit conversion connector cylinder 401 is provided with a first guide ring 403, and the first guide ring 403 is connected to the first insulated wire 402, and an aviation plug 404 is provided at one end of the central through hole 1032, and a battery connector 405 is provided at the other end of the central through hole 1032, and the first guide ring 403 is connected to the battery connector 405 through the first insulated wire 402, and the battery connector 405 is connected to the aviation plug 404 through the first insulated wire 402.
第一导环403、第二导环1014、第三导环1052及其他管体中涉及的导环与管体接触部分均做绝缘处理，可以在安装导环过程中对绝缘面涂抹绝缘胶进行处理。The first guide ring 403, the second guide ring 1014, the third guide ring 1052 and the contact parts between the guide rings and the tube body in other tube bodies are all insulated. Insulating glue can be applied to the insulating surface during the installation of the guide rings.
实施例2：Embodiment 2:
本实施例提供一种权利要求1的煤矿井下复合型泥浆脉冲随钻测量系统的工控方法，如图17所示，随钻测量短接不限于钻孔轨迹参数的采集，还可包括钻进工程参数采集(温度、转速、振动、钻具内部压力、钻具外部压力、扭矩、钻压等)、地质参数采集(伽马值、电阻率等)，介于上述多种类型数据采集工况下，为实现同一钻孔施工中需要交替采集不同种类及数量参数的情况下，具体步骤如下：控制泥浆泵注水压力值，当主控模块内部压力传感器采集的压力信号大于设定值K1且小于K2时，主控板采用模式一进行数据采集，当主控模块内部压力传感器采集的压力信号大于设定值K2时，主控板采用模式二进行数据采集，其中模式一只进行钻孔轨迹参数测量(方位、倾角、工具面)，模式二除了采集钻孔轨迹参数外还采集钻进工程参数、地质参数，具体参数类别根据随钻测量短接集成的采集模块种类决定。The present embodiment provides an industrial control method for a composite mud pulse measurement while drilling system in a coal mine of claim 1. As shown in FIG17 , the measurement while drilling short circuit is not limited to the collection of drilling trajectory parameters, but may also include the collection of drilling engineering parameters (temperature, rotation speed, vibration, internal pressure of the drill bit, external pressure of the drill bit, torque, drilling pressure, etc.) and geological parameters (gamma value, resistivity, etc.). Under the above-mentioned multiple types of data collection conditions, in order to realize the need to alternately collect different types and quantities of parameters in the same drilling construction, the specific steps are as follows: control the water injection pressure value of the mud pump, when the pressure signal collected by the pressure sensor inside the main control module is greater than the set value K1 and less than K2, the main control board adopts mode 1 for data collection, and when the pressure signal collected by the pressure sensor inside the main control module is greater than the set value K2, the main control board adopts mode 2 for data collection, wherein mode 1 measures drilling trajectory parameters (azimuth, inclination, tool face), and mode 2 collects drilling engineering parameters and geological parameters in addition to drilling trajectory parameters, and the specific parameter category is determined according to the type of collection module integrated in the measurement while drilling short circuit.
具体包括以下模式： The specific modes include:
模式一：采集模块采集钻孔轨迹参数(方位、倾角、工具面)，主控模块对采集的数据进行编码、调制，此时主控模块首先向电机驱动模块发送控制信号驱动伺服电机工作，伺服电机控制转子旋转，转子旋转过程中，定子过流通道与转子过流通道流道重叠面积发生变化，电机驱动模块记录ΔPMax最大的位置(即定子过流通道与转子过流通道流道重叠面积最大位置)，并且制动伺服电机传动轴在此位置，该过程为伺服电机自检调零过程；此时控制模块向驱动短接内电磁阀发送控制信号，驱动电磁阀小阀头动作从而控制正脉冲短接活塞动作，按照特定编码封堵和打开导流环的锥形面与导流环支座的锥形面组合形成的锥形流道，从而产生压力正脉冲；Mode 1: The acquisition module acquires drilling trajectory parameters (azimuth, inclination, tool face), and the main control module encodes and modulates the acquired data. At this time, the main control module first sends a control signal to the motor drive module to drive the servo motor to work. The servo motor controls the rotation of the rotor. During the rotation of the rotor, the overlapping area of the stator flow channel and the rotor flow channel changes. The motor drive module records the position with the maximum ΔP Max (i.e., the position with the maximum overlapping area of the stator flow channel and the rotor flow channel), and the drive shaft of the brake servo motor is at this position. This process is the servo motor self-test zeroing process; at this time, the control module sends a control signal to the solenoid valve inside the drive short circuit, drives the small valve head of the solenoid valve to move, thereby controlling the positive pulse short circuit piston movement, and according to the specific coding, blocks and opens the conical flow channel formed by the combination of the conical surface of the guide ring and the conical surface of the guide ring support, thereby generating a pressure positive pulse;
模式二：采集模块采集钻孔轨迹参数(方位、倾角、工具面)的同时采集钻进工程参数(温度、转速、振动、钻具内部压力、钻具外部压力、扭矩、钻压等)、地质参数(伽马值、电阻率等)，主控模块对采集的数据进行编码、调制，此时主控模块同样向电机驱动模块发送控制信号驱动伺服电机执行自检调零过程后，按照特定编码控制伺服电机驱动转子旋转，定子过流通道与转子过流通道流道重叠面积发生周期性变化，形成泥浆连续脉冲。 Mode 2: The acquisition module collects drilling trajectory parameters (azimuth, inclination, tool face) while collecting drilling engineering parameters (temperature, speed, vibration, internal pressure of drill bit, external pressure of drill bit, torque, drilling pressure, etc.) and geological parameters (gamma value, resistivity, etc.). The main control module encodes and modulates the collected data. At this time, the main control module also sends a control signal to the motor drive module to drive the servo motor to perform the self-test zeroing process, and then controls the servo motor to drive the rotor to rotate according to a specific code. The overlapping area of the stator flow channel and the rotor flow channel changes periodically, forming a continuous mud pulse.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311713575.3 | 2023-12-13 | ||
| CN202311713575.3A CN117684960A (en) | 2023-12-13 | 2023-12-13 | Underground coal mine composite mud pulse measurement while drilling system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025123620A1 true WO2025123620A1 (en) | 2025-06-19 |
Family
ID=90131556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2024/098364 Pending WO2025123620A1 (en) | 2023-12-13 | 2024-06-11 | Coal-mine underground composite mud pulse measurement while drilling system and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117684960A (en) |
| WO (1) | WO2025123620A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117684960A (en) * | 2023-12-13 | 2024-03-12 | 中煤科工西安研究院(集团)有限公司 | Underground coal mine composite mud pulse measurement while drilling system and method |
| CN118008267B (en) * | 2024-04-08 | 2024-06-11 | 上海达坦能源科技股份有限公司四川分公司 | An integrated measurement while drilling tool |
| CN120026861B (en) * | 2025-04-16 | 2025-07-18 | 胜利油田渤海固井工程技术有限责任公司 | A cementing construction technology for horizontal wells |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001303611A (en) * | 2000-04-19 | 2001-10-31 | Tone Corp | Measured-data transmission system of excavator |
| CN109751046A (en) * | 2019-01-28 | 2019-05-14 | 卢昌琴 | A kind of devices and methods therefor generating pulsed pressure wave using hydrodynamic driving shear valve |
| CN117684960A (en) * | 2023-12-13 | 2024-03-12 | 中煤科工西安研究院(集团)有限公司 | Underground coal mine composite mud pulse measurement while drilling system and method |
-
2023
- 2023-12-13 CN CN202311713575.3A patent/CN117684960A/en active Pending
-
2024
- 2024-06-11 WO PCT/CN2024/098364 patent/WO2025123620A1/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001303611A (en) * | 2000-04-19 | 2001-10-31 | Tone Corp | Measured-data transmission system of excavator |
| CN109751046A (en) * | 2019-01-28 | 2019-05-14 | 卢昌琴 | A kind of devices and methods therefor generating pulsed pressure wave using hydrodynamic driving shear valve |
| CN117684960A (en) * | 2023-12-13 | 2024-03-12 | 中煤科工西安研究院(集团)有限公司 | Underground coal mine composite mud pulse measurement while drilling system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117684960A (en) | 2024-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2025123620A1 (en) | Coal-mine underground composite mud pulse measurement while drilling system and method | |
| CN114607347B (en) | Coal mine underground near-bit multi-parameter measurement while drilling system based on hollow screw drilling tool | |
| CN112878913B (en) | Underground coal mine buried wire rotary guide drilling tool combination and industrial control method | |
| CN103410503B (en) | A kind of continuous wave slurry pulse generator | |
| CN101403296B (en) | Delamination pressure testing method for oil well without stop production | |
| CA3107988C (en) | Steering unit for static push rotary steering tool | |
| CN202125294U (en) | Rotary underground slurry pulse generator | |
| CN115434694A (en) | A coal mine multi-parameter while drilling measurement system and measurement method | |
| CN206329329U (en) | A kind of new cable control intelligent testing adjusts implantation tool | |
| CN106639898A (en) | Line-passing screw drilling tool | |
| US10914120B2 (en) | Flexible collar for a rotary steerable system | |
| CN113279716A (en) | Directional continuous reverse circulation core-taking combined drilling tool and method | |
| CN109025974A (en) | Long continuation of the journey mud-pulse is with well-drilling bottom pressure monitoring device | |
| CN113775335B (en) | A drilling fluid pulse signal generator | |
| CN109267962A (en) | A kind of motor driven compression rubber downhole blow-out preventer | |
| CN214273627U (en) | Mining continuous wave mud impulse generator | |
| CN207093073U (en) | A kind of downhole pulser being used in wireless drilling measuring system | |
| CN119321844B (en) | A regional fracturing staged water pressure monitoring device | |
| CN118895960B (en) | Hydraulic directional drilling and flushing integrated system and method for low-permeability coal seam | |
| CN111764825B (en) | Underground rotary guide device | |
| CN113482606A (en) | Underground signal receiving and transmitting device | |
| CN118187729A (en) | Reverse circulation directional continuous core drilling tool and method based on hollow screw motor | |
| CN118065878A (en) | Low-power-consumption oil-gas vertical well inclinometer and method | |
| CN113389542B (en) | Novel stratified water injection pulse generation system | |
| RU60619U1 (en) | TELEMETRIC SYSTEM FOR MONITORING WIRE AND HORIZONTAL WELL |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24902049 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: AU2024397257 Country of ref document: AU |