Downhole gyroscope assembly body while drilling

Abstract

The utility model discloses a while-drilling down-hole gyroscope assembly which comprises a shell, an upper connector lug is arranged at the top end of the shell, and a lower connector lug is arranged at the bottom end of the shell; the framework is arranged in the shell; the main control circuit board is arranged on the framework; the power supply circuit board is arranged on the framework and is electrically connected with the main control circuit board; the accelerometer assembly is arranged on the framework and is electrically connected with the main control circuit board; the gyroscope is arranged in the shell, is positioned below the framework and is electrically connected with the main control circuit board; the shock absorber is arranged at the bottom of the gyroscope; the upper quick wiring assembly is arranged in the upper connector lug and is electrically connected with the main control circuit board; and the lower rapid wiring assembly is arranged in the lower connector lug and is electrically connected with the main control circuit board. The while-drilling downhole gyroscope assembly disclosed by the utility model is accurate in detection, convenient and fast to mount and dismount, convenient to check equipment and capable of improving the convenience in use of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling, in particular to a downhole gyroscope assembly while drilling. Background Art

[0002] During the oil well drilling process, the drilling direction must be controlled at all times so that the oil well can be accurately drilled according to the designed angle. The drilling angle of the oil well is mostly monitored by a gyroscope. Due to the high drilling accuracy requirements, the gyroscope needs to be calibrated regularly to ensure the accuracy of the angle monitoring. In order to facilitate the calibration of the gyroscope, a downhole gyroscope assembly with high installation and disassembly convenience is designed. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a downhole gyroscope assembly while drilling, which has accurate detection, convenient installation and disassembly, convenient equipment calibration, and improved convenience of equipment use.

[0004] The utility model provides a downhole gyroscope assembly while drilling, comprising:

[0005] A shell, the top of which is fixedly provided with an upper terminal, and the bottom of which is fixedly provided with a lower terminal, and the shell is cylindrical;

[0006] A frame, fixedly disposed in the shell near the top;

[0007] A main control circuit board is arranged on the frame;

[0008] A power supply circuit board, arranged on the frame and electrically connected to the main control circuit board;

[0009] An accelerometer assembly, disposed on the frame and electrically connected to the main control circuit board;

[0010] A gyroscope is disposed in the housing, below the frame, and electrically connected to the main control circuit board;

[0011] A shock absorber is arranged at the bottom of the gyroscope;

[0012] An upper quick connection assembly is arranged in the upper connection head and is electrically connected to the main control circuit board;

[0013] The lower quick connection assembly is arranged in the lower connection head and is electrically connected to the main control circuit board.

[0014] Furthermore, two circles of first sealing rings are arranged between the upper terminal head and the shell; and two circles of second sealing rings are arranged between the lower terminal head and the shell.

[0015] Furthermore, an external threaded ring is fixedly sleeved on the lower terminal head, and the lower terminal head is threadedly connected to the shell through the external threaded ring.

[0016] Furthermore, the accelerometer assembly includes x-axis and y-axis accelerometers arranged at the bottom end of the frame and a z-axis accelerometer arranged on the frame.

[0017] Further, the upper quick wiring assembly includes an upper pressure-bearing needle, the bottom end of the upper wiring head is provided with an embedding groove, a female needle sleeve seat is provided in the embedding groove, the bottom end of the female needle sleeve seat is slidably embedded in the top end of the frame, a circle of supporting ring is provided on the outer periphery of the top end of the female needle sleeve seat, a supporting spring is sleeved on the female needle sleeve seat between the supporting ring and the frame, a female needle sleeve is embedded in the top end of the female needle sleeve seat, the bottom end of the female needle sleeve is electrically connected to the main control circuit board, and a female needle sleeve cover is fixedly installed on the top end of the female needle sleeve seat by screws;

[0018] An upper plug-in groove is provided at the top of the upper terminal block, and a first installation groove connected to the embedding groove is opened at the bottom of the upper plug-in groove. The upper pressure-bearing needle is installed at the bottom end of the first installation groove, and the bottom end of the upper pressure-bearing needle is electrically plugged with the female needle sleeve. The top end of the upper pressure-bearing needle is electrically plugged with a first single-core joint. The outer periphery of the first single-core joint is fixedly sleeved with a first joint sleeve, and the first joint sleeve is fixed in the first installation groove by a first pressure ring.

[0019] Furthermore, the lower quick wiring assembly includes a lower pressure-bearing pin, a lower plug-in groove is provided at the bottom end of the lower wiring head, a second installation groove is opened in the lower plug-in groove, the lower pressure-bearing pin is installed in the second installation groove, the top end of the lower pressure-bearing pin is electrically connected to the main control circuit board, the bottom end of the lower pressure-bearing pin is electrically plugged with a second single-core connector, the outer periphery of the second single-core connector is fixedly sleeved with a second connector sleeve, and the second connector sleeve is fixed in the second installation groove by a second pressure ring.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The downhole gyroscope assembly of the utility model is provided with an upper quick-connection assembly and a lower quick-connection assembly, which realizes the quick connection of the assembly by means of cable plugging, greatly improves the convenience of installation and disassembly of the assembly, and facilitates the verification of the assembly. An accelerometer assembly and a gyroscope are provided in the assembly, and the accelerometer assembly and the gyroscope are used to accurately monitor the drilling direction of the drill bit, thereby ensuring accurate control of the drilling direction of the drill bit. A shock absorber is installed at the bottom of the gyroscope, which reduces the impact of vibration on the gyroscope during the drilling process of the drill bit, thereby ensuring the accuracy of monitoring.

[0022] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 It is a structural schematic diagram of a downhole gyroscope assembly while drilling;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the downhole gyroscope assembly while drilling;

[0026] Figure 3 It is a structural schematic diagram of the quick wiring assembly;

[0027] Figure 4 Schematic diagram of the structure of the quick wiring assembly.

[0028] Numbers in the figure: 1, shell; 2, frame; 3, main control circuit board; 4, power supply circuit board; 5, accelerometer assembly; 6, gyroscope; 7, shock absorber; 8, upper quick wiring assembly; 9, lower quick wiring assembly;

[0029] 11. Upper terminal; 12. Lower terminal; 13. First sealing ring; 14. Second sealing ring; 15. External thread ring;

[0030] 51. x-axis and y-axis accelerometers; 52. z-axis accelerometer;

[0031] 81. upper pressure-bearing needle; 82. female needle sleeve seat; 83. supporting spring; 84. female needle sleeve; 85. female needle sleeve cover; 86. first single-core connector; 87. first connector outer sleeve; 88. first pressure ring;

[0032] 91. lower pressure-bearing needle; 92. second single-core connector; 93. second connector sleeve; 94. second pressure ring;

[0033] 111, embedding groove; 112, upper plug-in groove; 113, first installation groove;

[0034] 121. Lower plug-in slot; 122. Second installation slot. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] Please refer to Figure 1 to Figure 4 The embodiment of the utility model provides a downhole gyroscope assembly while drilling, comprising:

[0038] The housing 1 has an upper terminal 11 fixedly disposed on the top and a lower terminal 12 fixedly disposed on the bottom, and the housing 1 is cylindrical;

[0039] The frame 2 is fixedly disposed in the shell 1 near the top;

[0040] A main control circuit board 3 is arranged on the frame 2;

[0041] The power supply circuit board 4 is arranged on the frame 2 and is electrically connected to the main control circuit board 3;

[0042] The accelerometer assembly 5 is arranged on the frame 2 and is electrically connected to the main control circuit board 3;

[0043] The gyroscope 6 is arranged in the housing 1, located below the frame 2, and electrically connected to the main control circuit board 3;

[0044] A shock absorber 7 is arranged at the bottom of the gyroscope 6;

[0045] The upper quick connection assembly 8 is arranged in the upper connection head 11 and is electrically connected to the main control circuit board 3;

[0046] The lower quick connection assembly 9 is arranged in the lower connection head 12 and is electrically connected to the main control circuit board 3 .

[0047] In this embodiment, after the assembly of the present application is fixedly installed in the drilling tool, the upper quick wiring assembly 8 and the lower quick wiring assembly 9 realize the quick connection of the assembly by cable plugging, which greatly improves the convenience of installation and disassembly of the assembly and facilitates the verification of the assembly.

[0048] During the drilling process, the drilling direction of the drill bit is accurately monitored by the accelerometer assembly 5 and the gyroscope 6, ensuring accurate control of the drilling direction of the drill bit. A shock absorber 7 is installed at the bottom of the gyroscope 6 to reduce the impact of vibration on the gyroscope 6 during the drilling process of the drill bit, ensuring the accuracy of monitoring.

[0049] In a preferred embodiment, if Figure 2 to Figure 4 As shown, two circles of first sealing rings 13 are arranged between the upper terminal 11 and the housing 1 ; two circles of second sealing rings 14 are arranged between the lower terminal 12 and the housing 1 , thereby ensuring the sealing of the connection portion between the upper terminal 11 and the lower terminal 12 .

[0050] In a preferred embodiment, if Figure 2 and Figure 4 As shown, an external threaded ring 15 is fixedly sleeved on the lower terminal head 12, and the lower terminal head 12 is threadedly connected to the housing 1 through the external threaded ring 15, which facilitates the installation and opening of the lower terminal head 12 so as to calibrate the internal components.

[0051] In a preferred embodiment, if Figure 2 As shown, the accelerometer assembly 5 includes an x-axis and y-axis accelerometer 51 arranged at the bottom of the skeleton 2 and a z-axis accelerometer 52 arranged on the skeleton 2. The acceleration information of the assembly in the x-axis and y-axis directions is obtained through the x-axis and y-axis accelerometers 51, and the acceleration information of the assembly in the z-axis direction is obtained through the z-axis accelerometer 52, and the gyroscope 6 is used to accurately monitor the drilling direction of the drill bit.

[0052] In a preferred embodiment, if Figure 2 and Figure 3 As shown, the upper quick wiring assembly 8 includes an upper pressure-bearing needle 81, an embedding groove 111 is provided at the bottom end of the upper wiring head 11, a female needle sleeve seat 82 is provided in the embedding groove 111, the bottom end of the female needle sleeve seat 82 is slidably embedded in the top end of the frame 2, a circle of supporting ring is provided on the outer periphery of the top end of the female needle sleeve seat 82, a supporting spring 83 is sleeved on the female needle sleeve seat 82 between the supporting ring and the frame 2, a female needle sleeve 84 is embedded in the top end of the female needle sleeve seat 82, the bottom end of the female needle sleeve 84 is electrically connected to the main control circuit board 3, and a female needle sleeve cover 85 is fixedly installed on the top end of the female needle sleeve seat 82 by screws;

[0053] An upper plug-in groove 112 is provided at the top of the upper terminal block 11, and a first installation groove 113 connected to the embedding groove 111 is opened at the bottom of the upper plug-in groove 112. The upper pressure-bearing needle 81 is installed at the bottom end of the first installation groove 113. The bottom end of the upper pressure-bearing needle 81 is electrically plugged into the female needle sleeve 84, and the top of the upper pressure-bearing needle 81 is electrically plugged into the first single-core connector 86. The outer periphery of the first single-core connector 86 is fixedly sleeved with a first connector sleeve 87, and the first connector sleeve 87 is fixed in the first installation groove 113 by a first pressure ring 88.

[0054] In this embodiment, the first pressure ring 88 is expanded and tightened in the first installation groove 113 by interference fit, so as to fix the first joint sleeve 87 in the first installation groove 113 .

[0055] The end of the upper wiring cable is connected with a connector that matches the first single-core connector 86. After the upper wiring cable is inserted into the upper plug-in slot 112, the connector is inserted into the first single-core connector 86 to achieve electrical connection. It is easy to install and has a good signal transmission effect. Preferably, a ring groove is provided in the upper plug-in slot 112, and a convex ring that matches the ring groove is provided at the end of the upper wiring cable to improve the reliability of the connection between the upper wiring cable and the upper plug-in slot 112.

[0056] In a preferred embodiment, if Figure 2 and Figure 4 As shown, the lower quick wiring assembly 9 includes a lower pressure-bearing needle 91, a lower plug-in groove 121 is provided at the bottom end of the lower wiring head 12, a second installation groove 122 is opened in the lower plug-in groove 121, the lower pressure-bearing needle 91 is installed in the second installation groove 122, the top end of the lower pressure-bearing needle 91 is electrically connected to the main control circuit board 3, and the bottom end of the lower pressure-bearing needle 91 is electrically plugged with a second single-core connector 92, and the outer periphery of the second single-core connector 92 is fixedly sleeved with a second connector sleeve 93, and the second connector sleeve 93 is fixed in the second installation groove 122 by a second pressure ring 94.

[0057] In this embodiment, the second pressing ring 94 is expanded and tightened in the second installation groove 122 by interference fit, so as to fix the second joint sleeve 93 in the second installation groove 122 .

[0058] The end of the lower wiring cable is connected with a connector that matches the second single-core connector 92. After the lower wiring cable is inserted into the lower plug-in slot 121, the connector is inserted into the second single-core connector 92 to achieve electrical connection. It is easy to install and has a good signal transmission effect. Preferably, a ring groove is provided in the lower plug-in slot 121, and a convex ring that matches the ring groove is provided at the end of the lower wiring cable to improve the reliability of the connection between the lower wiring cable and the lower plug-in slot 121.

[0059] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In the description of this specification, the description of the terms "one embodiment", "some embodiments", 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. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A downhole gyroscope assembly while drilling, characterized in that: include: A shell (1), the top end of which is fixedly provided with an upper terminal (11), and the bottom end of which is fixedly provided with a lower terminal (12), wherein the shell (1) is cylindrical; A frame (2) is fixedly arranged in the shell (1) near the top; A main control circuit board (3) is arranged on the frame (2); A power supply circuit board (4) is arranged on the frame (2) and is electrically connected to the main control circuit board (3); An accelerometer component (5) is arranged on the frame (2) and is electrically connected to the main control circuit board (3); A gyroscope (6) is arranged in the housing (1), located below the frame (2), and electrically connected to the main control circuit board (3); A shock absorber (7) is arranged at the bottom of the gyroscope (6); An upper quick connection assembly (8) is arranged in the upper connection head (11) and is electrically connected to the main control circuit board (3); A lower quick connection assembly (9) is arranged in the lower connection head (12) and is electrically connected to the main control circuit board (3).

2. The downhole gyroscope assembly according to claim 1, characterized in that: Two circles of first sealing rings (13) are arranged between the upper terminal (11) and the housing (1); and two circles of second sealing rings (14) are arranged between the lower terminal (12) and the housing (1).

3. The downhole gyroscope assembly while drilling according to claim 1, characterized in that: The lower terminal head (12) is fixedly sleeved with an external threaded ring (15), and the lower terminal head (12) is threadedly connected to the housing (1) via the external threaded ring (15).

4. The downhole gyroscope assembly while drilling according to claim 1, characterized in that: The accelerometer assembly (5) comprises x-axis and y-axis accelerometers (51) arranged at the bottom end of the frame (2) and a z-axis accelerometer (52) arranged on the frame (2).

5. The downhole gyroscope assembly while drilling according to claim 1, characterized in that: The upper quick wiring assembly (8) comprises an upper pressure-bearing needle (81), the bottom end of the upper wiring head (11) is provided with an embedding groove (111), a female needle sleeve seat (82) is arranged in the embedding groove (111), the bottom end of the female needle sleeve seat (82) is slidably embedded in the top end of the frame (2), a circle of supporting ring is arranged on the outer periphery of the top end of the female needle sleeve seat (82), a supporting spring (83) is sleeved on the female needle sleeve seat (82) between the supporting ring and the frame (2), a female needle sleeve (84) is embedded in the top end of the female needle sleeve seat (82), the bottom end of the female needle sleeve (84) is electrically connected to the main control circuit board (3), and a female needle sleeve cover (85) is fixedly installed on the top end of the female needle sleeve seat (82) by screws; The top of the upper terminal block (11) is provided with an upper plug-in groove (112), and the bottom of the upper plug-in groove (112) is provided with a first installation groove (113) connected to the embedding groove (111). The upper pressure-bearing needle (81) is installed at the bottom end of the first installation groove (113), and the bottom end of the upper pressure-bearing needle (81) is electrically plugged with the female needle sleeve (84). The top of the upper pressure-bearing needle (81) is electrically plugged with a first single-core connector (86), and the outer peripheral fixed sleeve of the first single-core connector (86) is provided with a first connector sleeve (87), and the first connector sleeve (87) is fixed in the first installation groove (113) by a first pressure ring (88).

6. The downhole gyroscope assembly while drilling according to claim 1, characterized in that: The lower quick wiring assembly (9) comprises a lower pressure-bearing pin (91), the bottom end of the lower wiring head (12) is provided with a lower plug-in slot (121), a second installation slot (122) is provided in the lower plug-in slot (121), the lower pressure-bearing pin (91) is installed in the second installation slot (122), the top end of the lower pressure-bearing pin (91) is electrically connected to the main control circuit board (3), the bottom end of the lower pressure-bearing pin (91) is electrically plugged with a second single-core connector (92), the outer periphery of the second single-core connector (92) is fixedly sleeved with a second connector sleeve (93), and the second connector sleeve (93) is fixed in the second installation slot (122) by a second pressure ring (94).

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