Mining high-temperature external power supply measurement-while-drilling probe tube

Abstract

A sealing connector of the mining high-temperature external power supply measurement-while-drilling probe is connected between a first shell section and a second shell section, a communication connector is connected to the end, away from the first shell section, of the second shell section, and a fixed connector is connected to the end, away from the second shell section, of the first shell section. The temperature sensor is installed on the first shell section, the circuit board is arranged on the second shell section, the temperature sensor is conductively connected with the circuit board through the first conductive assembly, and the circuit board is conductively connected with the communication connector. A first heat insulation insulating part and a second heat insulation insulating part of the mining high-temperature external power supply measurement-while-drilling exploring tube are both of a thermoplastic polymer structure, and the first heat insulation insulating part is located in a first shell section and wraps a temperature sensor; the second heat insulation piece is located in the second shell section and wraps the circuit board. According to the mining high-temperature external power supply measurement-while-drilling exploring tube, the high-temperature resistance of the mining high-temperature external power supply measurement-while-drilling exploring tube is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of soft coal operation equipment, and specifically relates to a high-temperature externally powered drilling measurement probe for mining. Background Art

[0002] When directional drilling is carried out in soft coal, hydraulic bottom hole motors cannot be used, and pneumatic bottom hole motors are required. However, when using pneumatic bottom hole motors, the air temperature in the hole will rise sharply. At present, the electronic components and structural parts of the normal temperature probes on the market cannot withstand high temperatures above 65°C. They will be burned by high temperatures after one use, making them expensive disposable industrial products, greatly increasing the cost of use. Therefore, there is an urgent need for high temperature probes that can withstand more than 125°C to solve the problem of in-hole measurement in pneumatic bottom hole motor drilling. Utility Model Content

[0003] The purpose of the present application is to provide a high-temperature externally powered measurement-while-drilling probe for use in mines, thereby improving the high-temperature resistance of the high-temperature externally powered measurement-while-drilling probe for use in mines.

[0004] The first aspect of the present application discloses a high-temperature externally powered measurement while drilling probe for mining, comprising: a probe housing, a sealing joint, a temperature sensor, a circuit board, a communication joint and a fixed joint, wherein the probe housing comprises a first housing section and a second housing section, the sealing joint is connected between the first housing section and the second housing section, the communication joint is connected to one end of the second housing section away from the first housing section, the fixed joint is connected to one end of the first housing section away from the second housing section, the temperature sensor is installed on the first housing section, the circuit board is arranged on the second housing section, the temperature sensor is conductively connected to the circuit board through a first conductive component, and the circuit board is conductively connected to the communication joint; wherein the high-temperature externally powered measurement while drilling probe for mining also comprises a first thermal insulation component and a second thermal insulation component, the first thermal insulation component and the second thermal insulation component are both thermoplastic polymer structures, the first thermal insulation component is located in the first housing section and wraps the temperature sensor; the second thermal insulation component is located in the second housing section and wraps the circuit board.

[0005] In an exemplary embodiment of the present application, the mining high-temperature externally powered measurement-while-drilling probe further comprises a plurality of first fluororubber sealing rings, the plurality of first fluororubber sealing rings are arranged at intervals, and the plurality of first fluororubber sealing rings are sleeved between the fixed joint and the first outer shell section.

[0006] In an exemplary embodiment of the present application, the first conductive component includes a connector and a connecting wire, the connector is arranged in the sealing joint, the connector is conductively connected to the temperature sensor, and the connecting wire is connected to the circuit board and the connector; wherein,

[0007] The high-temperature externally powered measurement-while-drilling probe for mining further comprises a third heat-insulating component, which is a thermoplastic polymer structure and is arranged to wrap the connecting wire.

[0008] In an exemplary embodiment of the present application, the mining high-temperature externally powered measurement-while-drilling probe further includes a centralizer, which is disposed around the sealing joint and connected to the sealing joint.

[0009] In an exemplary embodiment of the present application, the mining high-temperature externally powered measurement while drilling probe further comprises a plurality of second fluororubber sealing rings, the plurality of second fluororubber sealing rings are arranged at intervals, and the plurality of second fluororubber sealing rings are sleeved between the sealing joint and the first outer shell section;

[0010] The high-temperature externally powered measurement-while-drilling probe for mining further comprises a plurality of third fluororubber sealing rings, which are arranged at intervals and sleeved between the sealing joint and the second outer shell section.

[0011] In an exemplary embodiment of the present application, the communication connector includes an insulating shell, a cable female socket and a conductive male head. The cable female socket is passed through one end of the insulating shell, one end of the conductive male head is passed through the cable female socket, and the end of the cable female socket away from the conductive male head is used to connect with the cable drill pipe male head.

[0012] This application scheme has the following beneficial effects:

[0013] In an embodiment of the present application, by wrapping the temperature sensor with a first thermal insulation member of a thermoplastic polymer structure, and by wrapping the circuit board with a second thermal insulation member of a thermoplastic polymer structure, the high temperature resistance of the high-temperature externally powered drilling measurement probe for mining can be improved, the operating efficiency can be maximized, and the service life of the high-temperature externally powered drilling measurement probe for mining can be extended.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. Among them, the drawings here are used to represent the utility model concept of the present application, and are not completely equivalent to the structure of the actual product protected by the present application.

[0016] Figure 1 A partial cross-sectional structural schematic diagram of a high-temperature externally powered measurement-while-drilling probe for mining in an embodiment of the utility model is shown.

[0017] Figure 2 The utility model embodiment is shown Figure 1 A structural schematic diagram of the high-temperature externally powered measurement-while-drilling probe for mining from another perspective.

[0018] Figure 3 A partial cross-sectional structural schematic diagram of another part of a high-temperature externally powered measurement-while-drilling probe for mining in an embodiment of the utility model is shown.

[0019] Figure 4 A partial cross-sectional structural schematic diagram of another part of the high-temperature externally powered measurement while drilling probe for mining in an embodiment of the utility model is shown.

[0020] Description of reference numerals:

[0021] 11. Probe casing; 111. First casing section; 112. Second casing section; 12. Sealing joint; 13. Temperature sensor; 14. Circuit board; 15. Communication joint; 151. Insulating casing; 152. Cable female socket; 153. Conductive male connector; 16. Fixed joint; 17. First thermal insulation component; 18. Second thermal insulation component; 19. Connector; 20. Third thermal insulation component; 21. Centralizer; 22. First fluororubber sealing ring; 23. Second fluororubber sealing ring; 24. Third fluororubber sealing ring; 25. Fourth fluororubber sealing ring; 26. Top column. DETAILED DESCRIPTION

[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0023] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0024] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0025] The embodiment of the present application discloses a high-temperature externally powered measurement while drilling probe for use in mining, so as to improve the high-temperature resistance of the high-temperature externally powered measurement while drilling probe for use in mining.

[0026] Combination Figures 1 to 4 As shown, the high-temperature externally powered measurement while drilling probe for mining includes: a probe housing 11, a sealing joint 12, a temperature sensor 13, a circuit board 14, a communication joint 15 and a fixed joint 16. The probe housing 11 includes a first housing section 111 and a second housing section 112. The sealing joint 12 is connected between the first housing section 111 and the second housing section 112 by threads. The communication joint 15 is connected to one end of the second housing section 112 away from the first housing section 111. The fixed joint 16 is connected to one end of the first housing section 111 away from the second housing section 112 by threads. The temperature sensor 13 is fixedly installed by screws. In the first outer shell section 111, the circuit board 14 is arranged in the second outer shell section 112, the temperature sensor 13 is conductively connected to the circuit board 14 through the first conductive component, and the circuit board 14 is conductively connected to the communication connector 15; wherein, the high-temperature externally powered drilling measurement probe for mining also includes a first thermal insulation component 17 and a second thermal insulation component 18, the first thermal insulation component 17 and the second thermal insulation component 18 are both thermoplastic polymer structures, the first thermal insulation component 17 is located in the first outer shell section 111, and wraps the temperature sensor 13; the second thermal insulation component 18 is located in the second outer shell section 112, and wraps the circuit board 14.

[0027] It should be understood that thermoplastic polymer structures are the most widely used type of plastics, which are made of thermoplastic resin as the main component and various additives. Under certain temperature conditions, plastics can soften or melt into any shape, and the shape remains unchanged after cooling; this state can be repeated many times and always has plasticity, and this repetition is only a physical change. This type of plastic is called thermoplastic plastic. For example, thermoplastic polymer structures include polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyoxymethylene, polycarbonate, polyamide, acrylic plastics, other polyolefins and their copolymers, polysulfone or polyphenylene ether.

[0028] In the present invention, by wrapping the temperature sensor 13 with the first heat-insulating member 17 of the thermoplastic polymer structure, and by wrapping the circuit board 14 with the second heat-insulating member 18 of the thermoplastic polymer structure, the high temperature resistance of the high-temperature externally powered drilling measurement probe for mining can be improved, the operation efficiency can be maximized, and the service life of the high-temperature externally powered drilling measurement probe for mining can be extended. Among them, the heat insulation design is a secondary protection for the measurement circuit, so that it still maintains durability and stability under multiple protections.

[0029] In addition, the circuit of the high-temperature externally powered drilling measurement probe for mining has been redesigned to be resistant to high temperatures, components that can withstand temperatures above 125°C have been selected, the wiring of the circuit board 14 has been changed, high-temperature resistant materials of 350-400°C have been selected for sealing structure design, high-temperature resistant materials of 300°C have been selected for plastic parts structure design, and low heat transfer coefficient materials have been used to wrap electronic components for thermal insulation design, thereby further improving the high-temperature resistance of the high-temperature externally powered drilling measurement probe for mining.

[0030] It should be understood that at least the circuit board 14 and the chips, circuit boards and other components in the high-temperature external power supply MWD probe for mining use are selected to withstand 125°C or above. The seals and heat insulation components in the high-temperature external power supply MWD probe for mining use are made of non-metallic materials that can withstand 350-400°C.

[0031] In this embodiment, the high-temperature externally powered measurement-while-drilling probe for mining also includes a plurality of first fluororubber sealing rings 22, which are arranged at intervals and are sleeved between the fixed joint 16 and the first outer shell section 111 to better achieve sealing and better high-temperature resistance.

[0032] In this embodiment, the first conductive component includes a high-temperature resistant connector 19 and a connecting wire. The connector 19 is arranged in the sealing joint 12. The connector 19 is conductively connected to the temperature sensor 13, and the connecting wire is connected to the circuit board 14 and the connector 19; wherein, the high-temperature externally powered drilling measurement probe for mining also includes a third thermal insulation component 20. The third thermal insulation component 20 is a thermoplastic polymer structure. The third thermal insulation component 20 is wrapped around the connecting wire, thereby protecting the connecting wire when used in a high-temperature environment, so as to ensure that the data collected by the temperature sensor 13 can be smoothly transmitted to the circuit board 14 through the connector 19.

[0033] In this embodiment, the high-temperature externally powered MWD probe for mining further includes a centralizer 21, which is arranged around the sealing joint 12 and connected to the sealing joint 12, so as to play a shock-absorbing role through the centralizer 21. For example, the centralizer 21 includes a centralizer body, a retaining ring and a screw, and the retaining ring and the screw are both made of non-magnetic metal materials (such as non-magnetic copper or non-magnetic stainless steel), and the centralizer body is made of flame-retardant, corrosion-resistant and high-temperature resistant rubber material.

[0034] In this embodiment, the high-temperature externally powered measurement-while-drilling probe for mining also includes a plurality of second fluororubber sealing rings 23, which are arranged at intervals and sleeved between the sealing joint 12 and the first outer shell section 111 to achieve a sealing effect while ensuring its high-temperature resistance.

[0035] The high-temperature externally powered measurement-while-drilling probe for mining also includes a plurality of third fluororubber sealing rings 24, which are arranged at intervals and sleeved between the sealing joint 12 and the second outer shell section 112 to achieve a sealing effect while ensuring its high-temperature resistance.

[0036] In this embodiment, the communication connector 15 is connected to the second housing section 112 through the top column 26. The communication connector 15 includes an insulating housing 151, a cable female socket 152 and a conductive male plug 153. The cable female socket 152 is inserted through one end of the insulating housing 151, and one end of the conductive male plug 153 is inserted through the cable female socket 152. The end of the cable female socket 152 away from the conductive male plug 153 is used to connect with the cable drill pipe male plug. Among them, a plurality of fourth fluororubber sealing rings 25 are also provided between the insulating housing 151 and the cable female socket 152.

[0037] Regarding other structures of the high-temperature externally powered measurement while drilling probe for mining, please refer to the prior art and will not be described in detail here.

[0038] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined. And the description of the terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application.

[0040] The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradicting each other.

[0041] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made according to the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A high-temperature externally powered measurement while drilling probe for mining, characterized in that: include: A probe housing, a sealing joint, a temperature sensor, a circuit board, a communication joint and a fixed joint, wherein the probe housing includes a first housing segment and a second housing segment, the sealing joint is connected between the first housing segment and the second housing segment, the communication joint is connected to an end of the second housing segment away from the first housing segment, the fixed joint is connected to an end of the first housing segment away from the second housing segment, the temperature sensor is installed on the first housing segment, the circuit board is arranged on the second housing segment, the temperature sensor is conductively connected to the circuit board via a first conductive component, and the circuit board is conductively connected to the communication joint; wherein, The high-temperature externally powered measurement-while-drilling probe for mining also includes a first thermal insulation component and a second thermal insulation component. Both the first thermal insulation component and the second thermal insulation component are thermoplastic polymer structures. The first thermal insulation component is located in the first outer shell section and wraps the temperature sensor; the second thermal insulation component is located in the second outer shell section and wraps the circuit board.

2. The high-temperature externally powered measurement while drilling probe for mining according to claim 1 is characterized in that: The high-temperature externally powered measurement-while-drilling probe for mining further comprises a plurality of first fluororubber sealing rings, which are arranged at intervals and sleeved between the fixed joint and the first outer shell segment.

3. The high-temperature externally powered measurement while drilling probe for mining according to claim 1, characterized in that: The first conductive component includes a connector and a connecting wire, wherein the connector is arranged in the sealing joint, the connector is conductively connected to the temperature sensor, and the connecting wire is connected to the circuit board and the connector; wherein, The high-temperature externally powered measurement-while-drilling probe for mining further comprises a third heat-insulating component, which is a thermoplastic polymer structure and is arranged to wrap the connecting wire.

4. The high-temperature externally powered measurement while drilling probe for mining according to claim 1, characterized in that: The high-temperature externally powered measurement-while-drilling probe for mining further comprises a centralizer, which is arranged around the sealing joint and connected to the sealing joint.

5. The high-temperature externally powered measurement while drilling probe for mining according to claim 1, characterized in that: The high-temperature externally powered MWD probe for mining further comprises a plurality of second fluororubber sealing rings, the plurality of second fluororubber sealing rings are arranged at intervals, and the plurality of second fluororubber sealing rings are sleeved between the sealing joint and the first outer shell section; The high-temperature externally powered measurement-while-drilling probe for mining further comprises a plurality of third fluororubber sealing rings, which are arranged at intervals and sleeved between the sealing joint and the second outer shell section.

6. The high-temperature externally powered measurement while drilling probe for mining according to claim 1, characterized in that: The communication connector includes an insulating shell, a cable female socket and a conductive male head. The cable female socket is passed through one end of the insulating shell, one end of the conductive male head is passed through the cable female socket, and the end of the cable female socket away from the conductive male head is used to connect with the cable drill pipe male head.

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