CN115977611A - Hydraulic balance type attitude control instrument - Google Patents
Hydraulic balance type attitude control instrument Download PDFInfo
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- CN115977611A CN115977611A CN202111202342.8A CN202111202342A CN115977611A CN 115977611 A CN115977611 A CN 115977611A CN 202111202342 A CN202111202342 A CN 202111202342A CN 115977611 A CN115977611 A CN 115977611A
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- hollow shaft
- bearing block
- pressure
- shaft motor
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Abstract
The invention discloses a hydraulic balance type attitude control instrument which comprises a fixed driving part and a rotation retaining part, wherein the fixed driving part comprises a cylindrical shell, a hollow shaft motor is arranged in the shell, one end of a rotor of the hollow shaft motor is connected with the rotation retaining part, and the other end of the rotor of the hollow shaft motor is provided with a pressure balance device for retaining the distance between the fixed driving part and the rotation retaining part. This device passes through pressure balance device for this device makes fixed drive division and rotates and has a determining deviation between the holding portion when deep well operation pressure is too big, and the effectual nation that has avoided too big pressure to lead to decides the drive division and rotates and crowd tightly to die between the holding portion, leads to unable adjustment to rotate the unable rotation of holding portion, and then influences the unable normally-working trouble of logging instrument and takes place.
Description
Technical Field
The invention relates to a rotary steering drilling device in the field of petroleum drilling engineering, in particular to a hydraulic balance type attitude control instrument.
Background
In the process of underground engineering construction such as oil field development or tunnel driving, in order to fully understand stratum rock and structural characteristics, horizontal drilling work is usually required to be carried out and horizontal well logging operation is carried out in a matched manner. The horizontal well logging is mainly implemented by driving a logging probe in a well by a drilling tool, the logging probe is internally provided with a plurality of sensors, the sensors of different types of probes are different, and each sensor has a specific detection direction. In the well logging operation process, due to the limitation of materials of the well logging equipment and the equipment, the gravity action can cause the well logging equipment to have the eccentric phenomenon that the probe is deviated to the bottom, and the long-distance pushing process can cause the well logging probe to have uncontrollable deflection in the well so as to ensure that the fitting effect of the probe sensor and a medium (hole wall) cannot be ensured, so that the test data is abnormal.
The existing solution mainly adopts a centralizer to enable logging equipment to be attached to a well wall as much as possible so as to reduce the generation of data abnormity, or enables test data to be corrected in a later stage by a software processing method, but the angle of attachment of a probe sensor and a medium (a well wall) cannot be controlled or guaranteed, so that stable and correct signal data cannot be directly obtained. Or the logging rotary short section is adopted, but the rotary short section has the function that the upper part and the lower part of the instrument rotate mutually, and the instrument has no circuit, does not have the azimuth measuring function, and also has no motor for controlling, so that the instrument at the lower part cannot be fixed to a certain angle.
Chinese patent publication No. CN110318733A provides a logging device, an integrated probe and a control method thereof for horizontal well logging, wherein the horizontal well logging device comprises a transmission part and the integrated probe, and the transmission part is fixedly connected with the integrated probe; the integrated probe comprises a detection part and a bonding control part, and the detection part is fixedly connected with the bonding control part; the attaching control part comprises a body, a driving device, a control unit and a gravity sensing unit; the gravity sensing unit can detect the deflection angle of the integrated probe relative to gravity, and the control unit can control the driving device to drive the integrated probe to rotate so as to achieve the effect of adjusting the fitting angle. The horizontal well logging device of this application adopts the means of gravity-feed tank to detect the declination of integrated probe relative gravity direction, can make integrated probe rotate to predetermineeing the state to guarantee that the detection sensor in the detection portion keeps laminating with the wall of a well.
However, when measuring deep wells, the probe is pressed on the driving device due to the large liquid pressure in the well, and due to condition limitation, the power of the driving device cannot be infinite, so that the driving device cannot rotate easily, and a fault that the angle cannot be adjusted to cause abnormal test data occurs.
Therefore, how to avoid the fault that the angle cannot be adjusted to cause the test data abnormity due to the dead pressing of the probe is a technical problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a hydraulic balance type attitude control instrument, which has the advantages that a certain distance is reserved between a fixed driving part and a rotating retaining part when the pressure of deep well operation is overlarge through a pressure balancing device, so that the fault that the rotating retaining part cannot be adjusted to rotate and the normal work of a logging instrument is influenced due to the fact that the fixed driving part and the rotating retaining part are tightly squeezed and pressed due to the overlarge pressure is effectively avoided.
In order to achieve the above object, the present invention provides a hydraulic balance type attitude control instrument,
a hydraulically balanced attitude controller comprising: the fixing and driving device comprises a fixing and driving portion and a rotating and holding portion, wherein the fixing and driving portion comprises a cylindrical shell, a hollow shaft motor is arranged in the shell, one end of a rotor of the hollow shaft motor is connected with the rotating and holding portion, and a pressure balancing device used for keeping the distance between the fixing and driving portion and the rotating and holding portion is arranged at the other end of the rotor of the hollow shaft motor.
Further, the pressure balancing device comprises a balancing cavity arranged in the fixed driving part, the balancing cavity is divided into a pressure cavity and an adjusting cavity through a balancing piston, the pressure cavity is located close to one side of the hollow shaft motor, a spring used for pushing the balancing piston is arranged in the adjusting cavity, and the adjusting cavity is provided with a balancing hole communicated with the external environment.
Furthermore, insulating oil is arranged in the pressure cavity.
Furthermore, the fixed driving part is provided with a T-shaped hollow shaft, one end of the T-shaped hollow shaft is provided with a first pressure bearing block for isolating external connection, and the first pressure bearing block is provided with a plurality of leads for connecting circuits at two ends of the first pressure bearing block; and the other end of the T-shaped hollow shaft is provided with a multi-core slip ring, and one end of the multi-core slip ring, which is far away from the T-shaped hollow shaft, is connected with a rotor hollow tube of the hollow shaft motor.
Furthermore, the two ends of the rotation holding part are respectively provided with a second pressure bearing block and a third pressure bearing block which are used for separating external connection, and the second pressure bearing block and/or the third pressure bearing block are provided with a plurality of wires which are used for connecting circuits at the two ends of the second pressure bearing block and/or the third pressure bearing block.
Furthermore, an attitude control module is arranged between the second bearing block and the third bearing block.
Furthermore, an upper joint is arranged at one end of the fixed driving part, which is far away from the rotating and holding part.
Further, the upper connector is a standard connector connected with the logging instrument.
Further, one end of the rotation holding part, which is far away from the fixed driving part, is provided with a lower joint.
Further, the lower connector is a standard connector used for being connected with the test module.
Compared with the prior art, when the hydraulic balanced attitude controller provided by the invention works, the rotating and maintaining part is driven to rotate to a certain angle through a power device such as a motor and the like in the fixed driving part and is positioned at a position where a proper logging instrument can more properly exert performance, so that logging operation is carried out; in this in-process, through pressure balance device for this device makes fixed drive division and rotates and has the determining deviation between the holding portion when deep well operation pressure is too big, and the effectual nation that has avoided too big pressure to lead to decides the drive division and rotates and crowd between the holding portion and die, leads to unable adjustment to rotate the unable rotation of holding portion, and then influences the fault that logging instrument can't normally work and takes place.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a hydraulic balanced attitude controller;
in the drawings: 101 is an upper joint, 102 is a first pressure bearing block, 103 is a T-shaped hollow shaft, 104 is a spring, 105 is a balance hole, 106 is an adjusting cavity, 107 is a balance piston, 108 is a pressure cavity, 109 is a stator, 110 is a multi-core slip ring, 111 is a thrust bearing, 112 is a rotor, 113 is an upper bearing, 114 is a seal ring, 115 is a lower bearing, 201 is a second pressure bearing block, 202 is an attitude control module, 203 is a third pressure bearing block, and 204 is a lower joint.
Detailed Description
The core of the invention is to provide a hydraulic balance type attitude control instrument, which enables a certain distance to be reserved between a fixed driving part and a rotating retaining part when the pressure of the deep well operation is overlarge through a pressure balancing device, thereby effectively avoiding the fault that the rotating retaining part cannot be adjusted to rotate and the normal work of a logging instrument is influenced due to the fact that the fixed driving part and the rotating retaining part are tightly squeezed and pressed due to overlarge pressure.
In order to make those skilled in the art better understand the technical solutions of the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings and embodiments.
As shown in fig. 1, a hydraulic balance type attitude control instrument includes: the device comprises a fixed driving part and a rotating and holding part, wherein the fixed driving part comprises a cylindrical shell, a hollow shaft motor is arranged in the shell, one end of a rotor 112 of the hollow shaft motor is connected with the rotating and holding part, and the other end of the rotor 112 of the hollow shaft motor is provided with a pressure balancing device for holding the distance between the fixed driving part and the rotating and holding part.
When the device works, the rotation holding part is driven to rotate to a certain angle by a power device such as a motor in the fixed driving part and is positioned at a position where a proper logging instrument can more properly exert performance, so that logging operation is performed; in this in-process, through pressure balance device for this device makes fixed drive division and rotates and has the determining deviation between the holding portion when deep well operation pressure is too big, and the effectual nation that has avoided too big pressure to lead to decides the drive division and rotates and crowd between the holding portion and die, leads to unable adjustment to rotate the unable rotation of holding portion, and then influences the fault that logging instrument can't normally work and takes place.
In a specific embodiment, further, the pressure balancing device includes a balancing cavity disposed in the fixed driving part, the balancing cavity is a cavity disposed in the housing, the balancing cavity is divided into a pressure cavity 108 and an adjusting cavity 106 by a balancing piston 107, the pressure cavity 108 is disposed at a side close to the hollow shaft motor, a spring 104 for pushing the balancing piston 107 is disposed in the adjusting cavity 106, and the adjusting cavity 106 is disposed with a balancing hole 105 communicated with an external environment; during operation, the spring 104 applies a constant pressure to the balance piston 107, and the holding pressure chamber 108 applies a constant pressure to the motor rotor 112, thereby keeping a distance between the rotation holding portion provided at the hollow shaft end of the rotor 112 and the fixed driving portion.
In a specific embodiment, further, the pressure chamber 108 is provided with insulating oil, which provides certain lubrication for the movement of the balance piston 107, and more importantly, the insulating oil effectively seals the hollow shaft motor, prevents external sewage from entering, damages the sealing of the winding of the hollow shaft motor, further affects the performance of the hollow shaft motor, and effectively maintains the service life of the hollow shaft motor.
In a specific embodiment, further, the fixed driving part is provided with a T-shaped hollow shaft 103, one end of the T-shaped hollow shaft 103 is provided with a first pressure bearing block 102 for isolating external connection, and the first pressure bearing block 102 is provided with a plurality of wires for connecting circuits at two ends of the first pressure bearing block 102; the other end of the T-shaped hollow shaft 103 is provided with a multi-core slip ring 110, and one end of the multi-core slip ring 110, which is far away from the T-shaped hollow shaft 103, is connected with a hollow tube of a rotor 112 of the hollow shaft motor; in actual operation, the stator 109 of the hollow shaft motor is connected to the housing of the stationary drive part, and the hollow tube of the rotor 112 of the hollow shaft motor and the housing of the stationary drive part are provided with a thrust bearing 111 in the radial direction for bearing the pressure generated by the pressure chamber 108 between the hollow tube of the rotor 112 of the hollow shaft motor and the housing; an upper bearing 113 and a lower bearing 115 are sleeved on one end, close to the rotation retaining part, of the hollow tube of the rotor 112 of the hollow shaft motor, and are used for bearing the radial force between the hollow tube of the rotor 112 of the hollow shaft motor and the shell and keeping the hollow tube of the rotor 112 of the hollow shaft motor to stably rotate, and at least one sealing ring 114 is further sleeved on the hollow tube of the rotor 112 of the hollow shaft motor between the upper bearing 113 and the lower bearing 115 to realize the sealing of the hollow shaft motor; furthermore, the two ends of the rotation holding part are respectively provided with a second pressure bearing block 201 and a third pressure bearing block 203 which are used for isolating external connection, and the second pressure bearing block 201 and/or the third pressure bearing block 203 are provided with a plurality of wires which are used for connecting circuits at two ends of the second pressure bearing block 201 and/or the third pressure bearing block 203. The device provides a wire channel for a circuit part through the T-shaped hollow shaft 103 and a hollow tube of the rotor 112, the sealing of the device and the external environment is realized by the first pressure bearing block 102, the second pressure bearing block 201 and the third pressure bearing block 203 respectively, and the normal connection of the wire and a bottom electrical component is realized by the multi-core slip ring 110 when the rotation holding part rotates, so that a good wire working channel is realized.
In a specific embodiment, further, an attitude control module 202 is disposed between the second pressure bearing block 201 and the third pressure bearing block 203, and the attitude control module 202 includes a circuit device such as a gyroscope for measuring an azimuth angle.
In a specific embodiment, further, an end of the fixed driving part away from the rotation holding part is provided with an upper joint 101; further, the upper joint 101 is a standard joint for connecting with a logging tool.
In a specific embodiment, further, one end of the rotation holding part far away from the fixed driving part is provided with a lower joint 204; further, the lower connector 204 is a standard connector for connecting with a test module.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A hydraulic balance type attitude controller, comprising: the fixed driving part comprises a cylindrical shell, a hollow shaft motor is arranged in the shell, one end of a rotor (112) of the hollow shaft motor is connected with the rotating retaining part, and a pressure balancing device used for retaining the distance between the fixed driving part and the rotating retaining part is arranged at the other end of the rotor (112) of the hollow shaft motor.
2. The hydraulic balanced attitude controller according to claim 1, characterized in that: the pressure balancing device comprises a balancing cavity arranged in the fixed driving part, the balancing cavity is divided into a pressure cavity (108) and an adjusting cavity (106) through a balancing piston (107), the pressure cavity (108) is located at one side close to the hollow shaft motor, a spring (104) used for pushing the balancing piston (107) is arranged in the adjusting cavity (106), and a balancing hole (105) communicated with the external environment is formed in the adjusting cavity (106).
3. The hydraulic balanced attitude controller according to claim 2, characterized in that: insulating oil is arranged in the pressure cavity (108).
4. The hydraulic balanced attitude controller according to claim 1, characterized in that: the fixed driving part is provided with a T-shaped hollow shaft (103), one end of the T-shaped hollow shaft (103) is provided with a first pressure bearing block (102) for isolating external connection, and the first pressure bearing block (102) is provided with a plurality of wires for connecting circuits at two ends of the first pressure bearing block (102); the other end of the T-shaped hollow shaft (103) is provided with a multi-core slip ring (110), and one end, far away from the T-shaped hollow shaft (103), of the multi-core slip ring (110) is connected with a hollow tube of a rotor (112) of the hollow shaft motor.
5. The hydraulic balanced attitude controller according to claim 1, characterized in that: the both ends of rotation holding portion are provided with second bearing block (201) and third bearing block (203) that are used for cutting off external connection respectively, second bearing block (201) and/or third bearing block (203) are provided with many and are used for connecting second bearing block (201) and/or the wire of third bearing block (203) both ends circuit.
6. The hydraulic balanced attitude controller according to claim 5, characterized in that: an attitude control module (202) is arranged between the second bearing block (201) and the third bearing block (203).
7. The hydraulic balanced attitude controller according to claim 1, characterized in that: an upper joint (101) is arranged at one end of the fixed driving part, which is far away from the rotating and holding part.
8. The hydraulic balanced attitude controller according to claim 7, characterized in that: the upper connector (101) is a standard connector connected with a logging instrument.
9. The hydraulic balanced attitude controller according to claim 1, characterized in that: one end of the rotating holding part, which is far away from the fixed driving part, is provided with a lower joint (204).
10. The hydraulic balanced attitude controller according to claim 9, characterized in that: the lower connector (204) is a standard connector for connecting with a test module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202342.8A CN115977611A (en) | 2021-10-15 | 2021-10-15 | Hydraulic balance type attitude control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202342.8A CN115977611A (en) | 2021-10-15 | 2021-10-15 | Hydraulic balance type attitude control instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115977611A true CN115977611A (en) | 2023-04-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111202342.8A Pending CN115977611A (en) | 2021-10-15 | 2021-10-15 | Hydraulic balance type attitude control instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115977611A (en) |
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2021
- 2021-10-15 CN CN202111202342.8A patent/CN115977611A/en active Pending
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