CN116411939A - A Rotary Steerable Tool for Measuring Puppets - Google Patents

Abstract

The present invention is applicable to the technical field of drilling equipment, and provides a measuring nipple of a rotary steerable tool; comprising, a measuring nipple body, two ends of the measuring nipple body are respectively provided with a first sealing ring and a second sealing ring; The communication slip rings at both ends of the measuring sub body; the line conversion deflector arranged inside the measuring sub body; the probe tube arranged inside the measuring sub body, and the first end of the probe tube is connected to the line conversion deflector On; the circuit board arranged inside the measuring sub body, the first end of the circuit board is connected to the second end of the probe; the sensor arranged inside the measuring sub body, the sensor is connected to the circuit the second end of the plate; and a lithium battery arranged inside the measuring sub body.

Description

A Rotary Steerable Tool for Measuring Puppets

technical field

The invention relates to the technical field of drilling equipment, in particular to a measuring sub-joint of a rotary steerable tool.

Background technique

The rotary steerable tool is composed of a measuring sub, a power communication sub, a guiding control sub, etc. The built-in high-power generator of the power communication sub can meet the power supply requirements for the measuring sub, guiding control sub, etc. at the same time. The single-bus communication mode is used between the functional sub-sections, that is, the structure is drilled through the side wall of the drill collar, and communication slip rings are installed at both ends. The single-bus simultaneously completes the power and signal transmission between the sub-sections. The measuring sub is composed of a measuring probe and a lithium battery. The inclination and azimuth are mainly measured, which are important parameters of the borehole trajectory. The existing measuring nipple structure is a rod-type probe-type structure, and the power supply and signal lines communicate inside the rod through pins. This structure has obvious limitations, fixed position, and does not have two-way communication function, which is not conducive to tool upgrading and function expansion.

Contents of the invention

The purpose of the present invention is to provide a measuring sub-joint of a rotary steerable tool to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A measuring pup joint of a rotary steerable tool, comprising, a measuring pup joint body;

Communication slip rings installed at both ends of the measuring pup body;

And the measuring part arranged inside the measuring nipple body, the measuring part is used to measure the inclination angle and the azimuth angle, so as to cooperate with the communication slip ring communication.

In the above scheme, communication slip rings are designed on the upper end and the lower end of the short joint body, which can realize the two-way communication function of the short joint.

As a further solution of the present invention: the measuring component includes a line conversion deflector arranged inside the measuring nipple body;

a probe tube arranged inside the measuring sub body, the first end of the probe tube is connected to the line conversion deflector;

a circuit board disposed inside the measuring sub body, the first end of the circuit board is connected to the second end of the probe;

a sensor arranged inside the measuring sub body, the sensor is connected to the second end of the circuit board;

And the lithium battery set inside the main body of the measuring sub.

As a further solution of the present invention: the probe includes an upper joint of the probe and a probe outer cylinder connected to the upper joint of the probe, the first end of the upper joint of the probe is connected to the line conversion deflector, The second end of the joint on the probe tube is connected to the skeleton of the circuit board, the second end of the joint on the probe tube is the end away from the line conversion deflector, and the joint on the probe tube is connected to the electrical circuit board. connect.

As a further solution of the present invention: a first buffer is further provided between the upper joint of the probe tube and the circuit board, and both ends of the first buffer are respectively connected to the upper joint of the probe tube and the skeleton of the circuit board.

As a further solution of the present invention: the sensor is connected to the circuit board through the upper connector of the sensor, the other end of the sensor is connected to the lower connector of the sensor, and the lower connector of the sensor is connected to the sensor through the first pin.

As a further solution of the present invention: the two ends of the lithium battery are respectively provided with an upper connector of the electromagnetic outer cylinder and a lower connector of the battery outer cylinder, and the upper connector of the electromagnetic outer cylinder is arranged inside the body of the measuring nipple through the first sealing structure.

As a further solution of the present invention: a second sealing structure is provided outside the line switching deflector.

As a further solution of the present invention: a positioning mechanism is also provided between the measuring sub body and the line conversion deflector.

As a further solution of the present invention: the positioning mechanism includes a positioning plug arranged on the line conversion deflector.

As a further solution of the present invention: a first sealing ring and a second sealing ring are respectively provided at both ends of the measuring nipple body.

Compared with the prior art, the present invention realizes the two-way communication function of the nipple by setting communication slip rings at the upper and lower ends of the measuring nipple body; at the same time, the measuring parts can realize the measurement of inclination angle, azimuth angle and other angles.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of a measuring sub-joint of a rotary steerable tool according to the present invention.

Figure 2 is an enlarged view of A in Figure 1 .

Fig. 3 is an enlarged view of B in Fig. 1 .

Fig. 4 is an enlarged view of point C in Fig. 1 .

Fig. 5 is an enlarged view at point D in Fig. 1 .

In the figure: 1-measuring nipple body, 2-measuring nipple cover, 3-communication slip ring, 4-first sealing ring, 5-stop ring, 6-second sealing ring, 7-probe upper joint , 8-pressure joint, 9-first pin, 10-third sealing ring, 11-first buffer, 12-circuit board, 13-sensor upper connector, 14-sensor, 15-sensor lower connector, 16 -Probe outer cylinder, 17-Electromagnetic outer cylinder upper connector, 18-Rubber centralizer, 19-Second pin, 20-Lithium battery buffer, 21-Third pin, 22-Lithium battery, 23-Fourth Pin, 24-battery outer cylinder, 25-battery outer cylinder lower connector, 26-line conversion deflector, 27-fourth sealing ring, 28-positioning plug, 12-circuit board, 29-circlip, 30- Locking sleeve, 31-fifth sealing ring, 32-sixth sealing ring.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1 to 5. In the embodiment of the present invention, a structural diagram of a measuring sub of a rotary steerable tool provided by the embodiment of the present invention includes: a measuring sub body 1, and communication devices installed at both ends of the measuring sub body 1. Slip ring 3; set communication slip ring 3 for two-way communication.

And the measuring components arranged inside the measuring pup body 1 . The measuring part is used for measuring well inclination and azimuth. To cooperate with the communication slip ring 3 for communication.

The measuring component may include a line switching deflector 26 arranged inside the measuring sub body 1;

A probe tube arranged inside the measuring sub body 1, the first end of the probe tube is connected to the line conversion deflector 26;

A circuit board 12 arranged inside the measuring sub body 1, the first end of the circuit board 12 is connected to the second end of the probe;

A sensor 14 arranged inside the measuring sub body 1, the sensor 14 is connected to the second end of the circuit board;

And the lithium battery 22 arranged inside the measuring pup body 1 .

The measuring sub-joint of the rotary steerable tool is an important part of the rotary steerable tool, and the well inclination and azimuth measured by the invention are important parameters of the borehole trajectory. The measuring pup of the rotating guide tool is mainly composed of a measuring probe and a lithium battery. The upper and lower ends of the measuring pup body 1 of the present invention are designed with a communication slip ring 3, which can realize the two-way communication function of the pup, and a sealed high-voltage joint is installed in the probe. To prevent seal failure from causing downhole high-pressure mud to enter the inside of the probe and damage the circuit board and sensor. The invention has the advantages of reasonable structure, convenient disassembly and installation, strong sealing safety, can realize the combination of pup joints in different positions in the tool, and has strong function expansion.

Please refer to Figures 2 and 5, a stop ring 5 is provided at one end of the measuring sub body 1, and a first sealing ring 4 and a second sealing ring 6 are respectively provided at both ends of the measuring sub body 1, the first The sealing ring 4 is arranged at the root of the stop ring 5, and the second sealing ring 6 is arranged in the groove on the end face of the female button when the second sealing ring 6 is installed; the first sealing ring 4 and the second sealing ring 6 respectively prevent water The eye and annular mud enters the communication slip ring.

Please refer to FIG. 3 , the probe includes a probe upper joint 7 and a probe outer cylinder 16 connected to the probe upper joint 7 , and the first end of the probe upper joint 7 is connected to a line conversion deflector 26 On, the second end of the probe upper joint 7 is connected to the skeleton of the circuit board 12, the second end of the probe upper joint 7 is the end away from the line conversion deflector 26, and the probe The upper connector 7 is electrically connected to the circuit board 12 . In this way, the electrical connection between the joint 7 on the probe tube and the circuit board 12 is realized. The upper joint 7 of the probe tube is connected to the outer tube 16 of the probe tube through a screw thread, and this connection method facilitates the installation and disassembly of the upper joint 7 of the probe tube and the outer tube 16 of the probe tube.

The end of the upper connector 7 of the probe tube away from the circuit board 12 is connected to a first pin 9 through a pressure-bearing joint 8 , and the first pin 9 is connected to a circuit conversion deflector 26 .

Please refer to FIG. 3 , a first buffer 11 is also provided between the upper joint 7 of the probe tube and the circuit board 12 , and the two ends of the first buffer 11 are connected to the skeleton of the upper joint 7 of the probe tube and the circuit board 12 respectively. on, in order to achieve the protection of the circuit board.

Referring to Fig. 3, described circuit board and sensor 14 are arranged on probe tube outer tube 16 inside, are electrically connected between described circuit board and sensor 14, and described sensor 14 one end is connected on the skeleton of circuit board 12, by such The sensor 14 is fixed on the skeleton of the circuit board 12 in a manner.

The sensor 14 is connected to the circuit board through the sensor upper connector 13 , and the other end of the sensor 14 is connected to the sensor lower connector 15 , and the sensor lower connector 15 is connected to the sensor 14 through the first pin 9 . The first pin 9 is a double-core male pin. It can be understood that the above pin types are only for example, and other types of pins are also suitable for the connection between the sensor 14 and the circuit board of the present invention.

Please refer to FIG. 4 , the two ends of the lithium battery 22 are respectively provided with an electromagnetic outer cylinder upper connector 17 and a battery outer cylinder lower connector 25 , and the electromagnetic outer cylinder upper connector 17 is arranged inside the measuring nipple body 1 through a first sealing structure , the sealing structure includes a plurality of third sealing rings 10 arranged outside the upper joint 17 of the electromagnetic outer cylinder, and the third sealing rings 10 are arranged in the first sealing groove on the upper joint 17 of the electromagnetic outer cylinder. In this way, the upper joint 17 of the electromagnetic outer cylinder is fixedly installed inside the measuring nipple body 1, and a sealing effect is realized.

A plurality of rubber centralizing blocks 18 are arranged on the upper joint 17 of the electromagnetic outer cylinder, and the number of the rubber centralizing blocks 18 is three, and they are fixed by screws. A third sealing ring 10 is also arranged on the upper joint 7 of the two probes.

The lithium battery 22 is also provided with a lithium battery buffer 20. One end of the electromagnetic buffer 20 is connected to the upper joint 17 of the electromagnetic outer cylinder, and the other end is fixed inside the measuring nipple body 1. The lithium battery buffer 20 The other end is fixed by the third pin 21, and the third pin 21 is a pin screw with 7 holes and 6 cores. The lithium battery 22 is also provided with a battery outer cylinder 24 .

The two ends of the lithium battery 22 are respectively fixed by the fourth pin 23 and the third pin 21, the fourth pin 23 is a pin with 6 holes and 7 cores; the third pin 21 is a pin with 7 holes and 6 cores Pin. The lead wires of the lithium battery 22 are electrically connected to the lead wires of the joint 17 on the electromagnetic outer cylinder, and the lead wires of the lithium battery 22 are welded to the lead wires of the joint 17 on the electromagnetic outer cylinder.

The upper joint 17 of the electromagnetic outer cylinder is connected with the outer cylinder 16 of the probe tube through a screw thread.

Please refer to FIG. 2 , a second sealing structure is provided on the outside of the line conversion deflector 26 . sealing ring 10. In this way, the sealed installation of the line switching deflector 26 is realized.

A plurality of second pins are arranged inside the line conversion deflector 26 , the number of the second pins is two, and the second pins are double-core female pins.

The line conversion deflector 26 is connected with the upper joint 7 of the probe tube through a screw thread. Easy to disassemble.

A positioning mechanism is also provided between the measuring nipple body 1 and the line conversion deflector 26. The positioning mechanism includes a positioning screw plug 28 arranged on the line conversion deflector 26, and the positioning screw plug 28 passes through the card Spring 29 is fixed. A positioning plug 28 is provided to prevent the line switching deflector 26 from rotating.

The inside of the measuring sub body 1 is also provided with a locking sleeve 30 for sealing the end of the line conversion deflector 26 away from the probe tube. The locking sleeve 30 is provided with a third sealing structure, and the third sealing The structure includes a fifth sealing ring 31 arranged in the third sealing groove outside the locking sleeve 30 .

The measuring nipple body 1 is also provided with a measuring nipple cover plate 2, and the measuring nipple cover plate 2 is also provided with a sixth sealing ring 32, which is convenient for sealing. The measuring nipple The cover plate 2 is convenient for installation.

In the assembly process of the present invention: the two ends of the measuring nipple body 1 are installed into the communication slip ring 3, the two power lines of the communication slip ring are drawn out from the groove of the cover plate, and the two power lines are welded to the first pin 9; The tool installs the stop ring 5 on the male buckle, installs the sealing ring 4 on the root of the male buckle, installs the second sealing ring 6 in the end face groove of the female buckle, and the sealing ring 4 and the second sealing ring 6 prevent the water hole and the The annular mud enters the communication slip ring; weld the 92 power cords of the first pins to the pressure joint 8, put the pressure joint and the double-core male pins into the joint 7 on the probe tube and fix them with screws, and put the two The third sealing ring 10 is put into the sealing groove of the upper joint of the probe tube; the buffer 11 is respectively connected with the upper joint 7 of the probe tube and the circuit board frame 12, and the two power lines drawn from the upper joint of the probe tube are connected with the circuit board frame The circuit board welding of the sensor; one end of the sensor upper joint 13 is connected with the skeleton of the circuit board 12, and the other end is connected with the sensor 14, and the power line signal line of the sensor is welded with the circuit board; the sensor lower joint 15 is connected with the sensor 14, and the first Connect the pin 9 with the sensor lower joint 15, connect the probe tube outer cylinder 16 with the probe tube upper joint 7 with a screw; fix the second pin 19 on the electromagnetic outer cylinder upper joint 17 with screws, and fix the three rubber centralizing blocks 18 is fixed on the upper joint 17 of the electromagnetic outer cylinder with screws, and the two third sealing rings 10 are put into the sealing groove of the upper joint of the electromagnetic outer cylinder; the lithium battery buffer 20 is screwed on the upper joint of the electromagnetic outer cylinder, and the The other end of the lithium battery buffer is screwed to the third pin 21; one end of the fourth pin 23 is fixed to the lithium battery 22, and the other end is fixed to the third pin 21 with screws, and the lead wire of the lithium battery is connected to the upper connector of the electromagnetic outer cylinder The lead wires are welded and fixed; the battery outer cylinder 24 is connected with the electromagnetic outer cylinder upper joint 17 with thread; the third sealing ring 10 is put into the sealing groove of the lower joint 25 of the battery outer cylinder, and the three rubber righting blocks 18 are fixed on the On the lower joint 25 of the electromagnetic outer cylinder, the lower joint 25 of the electromagnetic outer cylinder is connected with the battery outer cylinder 24 threaded; the upper joint 17 of the electromagnetic outer cylinder is connected with the probe outer cylinder 16 threaded; the fourth sealing ring 27 is packed into the In the sealing groove of the circuit conversion deflector 26, put two second pins 19 into the hole of the circuit conversion deflector 26, put the third sealing ring 10 into the sealing groove of the circuit conversion deflector 26, and put the The line conversion deflector 26 is connected with the upper joint 7 of the probe tube with a screw thread; the lithium battery assembly is fed in from the female button end of the measuring sub body 1 until the line conversion deflector 26 enters the inner hole of the measuring sub body, and a special The tool slowly pushes the line conversion deflector into the step surface of the inner hole of the measuring nipple body to stop, puts the positioning plug 28 into the hole of the measuring nipple body, and fixes the plug with a retaining spring 29, which prevents The rotation of the line conversion deflector; put the fifth sealing ring 31 into the sealing groove of the locking sleeve 30, and screw the locking sleeve into the body of the measuring nipple with a special tool; convert the first pin 9 to the line The double-core female pin connection on the deflector 26, put the sixth sealing ring 32 into the sealing groove of the measuring nipple cover plate 2, fix the measuring nipple cover plate in the measuring nipple body groove with screws, At this time, the communication connection between the communication slip rings at both ends of the measuring pup joint and the probe tube assembly is completed, and the assembly of the measuring pup joint is completed.

In the description of the present invention, it should be understood that, in addition, the terms "first", "second" and so on are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the indicated technical features quantity. Therefore, in the description of the present invention, unless otherwise specified, "plurality" means two or more. A feature defined with "first", "second", etc. may explicitly or implicitly include one or more of that feature.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A measuring pup joint of a rotary steerable tool, characterized in that, comprising, a measuring pup joint body (1); Communication slip rings (3) arranged at both ends of the measuring pup body (1); And the measuring parts arranged inside the measuring nipple body (1), the measuring parts are used to measure the inclination angle and the azimuth angle, so as to cooperate with the communication slip ring (3) for communication. 2. The measuring nipple of a rotary steerable tool according to claim 1, characterized in that, the measuring component includes a line conversion deflector (26) arranged inside the measuring nipple body (1); A probe tube arranged inside the measuring sub body (1), the first end of the probe tube is connected to the line conversion deflector (26); a circuit board (12) arranged inside the measuring pup body (1), the first end of the circuit board (12) is connected to the second end of the probe; a sensor (14) arranged inside the measuring pup body (1), the sensor (14) being connected to the second end of the circuit board; And the lithium battery (22) arranged inside the measuring pup body (1). 3. The measuring sub-joint of a rotary steerable tool according to claim 2, characterized in that, the probe tube comprises a probe tube upper joint (7) and a probe tube outer cylinder connected to the probe tube upper joint (7) (16), the first end of the joint (7) on the probe tube is connected to the line conversion deflector (26), and the second end of the joint (7) on the probe tube is connected to the circuit board (12) On the skeleton, the second end of the probe tube upper joint (7) is the end away from the line conversion deflector (26), and the probe tube upper joint (7) is electrically connected to the circuit board (12). 4. The measuring sub-joint of a rotary steerable tool according to claim 3, characterized in that, a first buffer (11) is also arranged between the probe tube upper joint (7) and the circuit board (12), Both ends of the first buffer (11) are respectively connected to the joint (7) on the probe tube and the skeleton of the circuit board (12). 5. A measuring nipple of a rotary steerable tool according to claim 2, characterized in that the sensor (14) is connected to the circuit board through the sensor upper joint (13), and the other end of the sensor (14) is connected with The sensor lower connector (15), the sensor lower connector (15) is connected with the sensor (14) through the first pin (9). 6. The measuring pup joint of a rotary steerable tool according to claim 2, characterized in that, the two ends of the lithium battery (22) are respectively provided with an electromagnetic outer cylinder upper joint (17) and a battery outer cylinder lower joint (25 ), the upper joint (17) of the electromagnetic outer cylinder is arranged inside the measuring nipple body (1) through the first sealing structure. 7. The measuring sub-joint of a rotary steerable tool according to claim 2, characterized in that, a second sealing structure is arranged outside the line switching deflector (26). 8. A measuring sub for a rotary steerable tool according to claim 2, characterized in that, a positioning mechanism is also provided between the measuring sub body (1) and the line conversion deflector (26). 9. The measuring pup joint of a rotary steerable tool according to claim 8, characterized in that, the positioning mechanism comprises a positioning plug (28) arranged on the line conversion deflector (26). 10. The measuring nipple of a rotary steerable tool according to claim 1, characterized in that, the two ends of the measuring nipple body (1) are respectively provided with a first sealing ring (4) and a second sealing ring (6 ).

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