CN118008267A - Integral type measurement while drilling instrument - Google Patents
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- CN118008267A CN118008267A CN202410411067.8A CN202410411067A CN118008267A CN 118008267 A CN118008267 A CN 118008267A CN 202410411067 A CN202410411067 A CN 202410411067A CN 118008267 A CN118008267 A CN 118008267A
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- 238000005259 measurement Methods 0.000 title claims abstract description 64
- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 238000012544 monitoring process Methods 0.000 claims description 15
- 239000000523 sample Substances 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 14
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention relates to the technical field of underground tools for oil and gas drilling and production, in particular to an integrated measurement-while-drilling tool which comprises a tool string, wherein the tool string comprises a bottom assembly, a pulser mechanical execution module, an integrated electronic measurement and control module, a battery module, a vibration reduction module and a fishing head module which are sequentially connected from bottom to top, the integrated electronic measurement and control module comprises a magnetic coupler, a power output shaft, a motor and electronic control unit, an integrated measurement unit, a connector and a locking device, wherein the magnetic coupler, the power output shaft, the motor and electronic control unit, the integrated measurement unit, the connector and the locking device are sequentially connected from top to bottom, and the integrated measurement unit comprises a framework, a buffer assembly and a measurement module for measuring parameters while drilling. According to the invention, the whole length of the measuring instrument is shortened, so that the distance between the measuring unit and the drill bit is shortened, and the related information of the drilling position can be timely and rapidly reflected; the buffer assembly is used for surrounding the measuring module, so that vibration in the measurement while drilling process can be effectively reduced, and the circuit part of the measuring module is further protected.
Description
Technical Field
The invention relates to the technical field of downhole tools for oil and gas drilling and production, in particular to an integrated measurement while drilling tool.
Background
The Measuring While Drilling (MWD) tool is an advanced technical means in directional drilling of petroleum exploration, and can measure various formation information at the bottom of a well while drilling and immediately transmit the information to the ground. With the increase of highly deviated wells, horizontal wells and ultra-deep wells developed in petroleum exploration in recent years, the application frequency of the wireless measurement while drilling tool is also increasing.
Due to the particularity of petroleum exploration working environment and the national requirements for energy source guarantee, the measurement while drilling tool is urgently required to go up a step in the technical aspects of transportation convenience, field operation simplicity, high running reliability and measuring points closer to the bottom of a well so as to meet the development trend of high-temperature deep wells and high-difficulty wells in recent years.
Disclosure of Invention
The invention provides an integrated measurement while drilling tool for solving the technical problems.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides an integral type measurement while drilling instrument, includes the tool string, the tool string includes bottom assembly, pulser machinery execution module, integral type electron measurement and control module, battery module, damping module and salvage head module, bottom assembly, pulser machinery execution module, integral type electron measurement and control module, battery module, damping module and salvage head module are by down supreme aviation plug connection that loops through, integral type electron measurement and control module includes from top to bottom magnetic coupler, power take off shaft, motor and electronic control unit, integrated measurement unit, joint and locking device that connect gradually, integrated measurement unit includes skeleton, buffer module and is used for measuring the measurement module along with boring the parameter, the skeleton is cylindric, buffer module sets up on the inner chamber wall of skeleton, measurement module passes through the connecting piece and is connected with buffer module.
Further, the buffer assembly comprises four groups of buffer components and spring pieces arranged in the connector, the four groups of buffer components are arranged around the measuring module, any one group of buffer components comprises two elastic components and three stress rods, the elastic components are alternately connected with the stress rods, an abutting plate is further arranged in the connector, the abutting plate is located on one side, facing the framework, of the spring pieces, jacks for the penetration of the stress rods are arranged on the connector and the framework, and the stress rods located on one side of the connector in the framework penetrate through the jacks and are connected with the abutting plate. The adjacent ends of the framework and the connector are fixedly connected, wherein the stress rod can move in the framework and the connector through the jack. The axis of the measuring module is overlapped with the axis of the framework, a movable space for two ends of the measuring module is arranged in the framework, and at the moment, the measuring module can release impact force through buffering of the elastic piece and the spring piece under the connection of the connecting piece, so that the precise instrument in the measuring module is prevented from being vibrated greatly.
Further, the guide groove for the movement of the stress rod is further formed in the inner wall of the framework, the guide groove is arranged in parallel with the axis of the framework, an opening facing the axis of the framework is further formed in the guide groove, and the stress rod between the two elastic pieces is connected with the measuring module through the connecting piece. The external diameter of the stress rod is smaller than the internal diameter of the guide groove, and the stress rod can slide along the guide groove. When the drill bit is subjected to resistance, the stress rod moves along the long axis direction without shaking.
Further, the elastic piece is wavy, a V-shaped opening is formed in the center of the elastic piece, and inserting seats for inserting the stress rods are arranged at two ends of the elastic piece. The stress rod is connected with the elastic piece in an inserting way through the inserting seat, when the framework is stressed along the long side, namely, the framework is stressed along the x-axis direction, and the long side of the elastic piece is stressed and compressed; when the skeleton is stressed by side mud pressure, namely stress in the y-axis direction or the z-axis direction, the short plates of the elastic pieces are stressed and compressed, and the impact force directly on the measuring module is released through elastic deformation.
Further, the motor is electrically connected with the electronic control unit, the electronic control unit controls the motor to work according to instructions through calculation and coding by collecting data of the measuring module, and then power is transmitted to the pulser mechanical executing module through the power output shaft and the magnetic coupler, and then pulse is sent out. The electronic control unit is used for controlling the working state of the motor according to a preset algorithm and logic by collecting the data of the measuring module, calculating and encoding the data. And after receiving the data from the measurement module, the electronic control unit analyzes and processes the data according to preset control logic and algorithms. According to the data, the electronic control unit sends out corresponding instructions to the motor, and controls parameters such as rotating speed, direction and the like of the motor so as to realize the expected working state. Once the motor starts to operate according to the command of the electronic control unit, the power output shaft rotates. And the power output shaft and the magnetic coupler are in magnetic coupling, so that power is transmitted to the magnetic coupler. The magnetic coupler transmits power from the motor to the pulser mechanical execution module, enabling it to generate a pulsed signal.
Further, the measuring module comprises a pulser electronic driving module, a directional probe tube, a vibration monitoring module and a gamma control module, wherein the pulser electronic driving module, the directional probe tube, the vibration monitoring module and the gamma control module are respectively and electrically connected with the electronic control unit. The pulser electronic driving module, the directional probe tube, the vibration monitoring module and the gamma control module are fixedly installed through an installation frame in an integrated mode, and the installation frame is connected with the connecting piece. The electronic driving module of the pulser is in charge of controlling the emission and frequency adjustment of the pulser, and is electrically connected with the electronic control unit to receive control signals and supply power, so that the electronic control unit is ensured to effectively control the working state and the output frequency of the pulser, and measurement data can be accurately recorded and transmitted in the drilling process; the directional probe is used for measuring parameters such as well deviation, azimuth and the like in the drilling process; the vibration monitoring module is used for monitoring the vibration condition of the tool string in the drilling process so as to evaluate the stability of the drilling process and the abrasion condition of the tool and provide real-time vibration state monitoring and analysis for the drilling operation; the gamma control module is used to monitor gamma ray intensities in the formation to identify formation type and formation structure.
Further, the tool string is sleeved with a sleeve, the sleeve is cylindrical and internally provided with a containing cavity, and the tool string is fixed in the containing cavity. The tool string is sleeved with a centralizer, and the centralizer plays a role in supporting and centering the tool string. The centralizer comprises an inner ring, an outer ring and ribs connected between the inner ring and the outer ring, wherein a fixing channel for fixing a tool string is formed inside the inner ring, the outer ring is abutted against the inner wall of the sleeve, and a mud channel is formed between the inner ring and the outer ring.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the invention, the whole length of the measuring instrument is shortened, so that the distance between the measuring unit and the drill bit is shortened, the related information of the drilling position can be timely and rapidly reflected, and the problems of information lag, insufficient measuring accuracy and the like are avoided;
2. According to the invention, the connection and assembly steps of the module components can be optimized through the integrated design, the failure rate between the connection modules is reduced, the transportation and the field operation are convenient, and the construction efficiency is improved;
3. the buffer assembly is used for surrounding the measuring module, so that vibration in the measurement while drilling process can be effectively reduced, and further, the circuit part of the measuring module is protected in three coordinate directions.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic diagram of the structure of an integrated electronic measurement and control module;
FIG. 3 is a schematic cross-sectional view of an integrated measurement unit and joint;
FIG. 4 is a schematic structural view of an elastic member;
FIG. 5 is a schematic cross-sectional view of a skeleton;
FIG. 6 is a schematic cross-sectional view of a joint in a third embodiment;
The attached drawings are identified: the device comprises a 1-bottom assembly, a 2-pulser mechanical execution module, a 3-integrated electronic measurement and control module, a 4-battery module, a 5-vibration reduction module, a 6-fishing head module, a 7-magnetic coupler, an 8-power output shaft, a 9-motor and electronic control unit, a 10-integrated measurement unit, an 11-connector, a 12-locking device, a 13-framework, a 14-measurement module, a 15-connecting piece, a 16-spring piece, a 17-elastic piece, an 18-stress rod, a 19-abutting plate, a 20-guide groove, a 21-V-shaped opening, a 22-plug seat, a 23-rack and a 24-gear.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
As shown in fig. 1-5, the integrated measurement while drilling tool disclosed by the invention comprises a tool string, wherein the tool string comprises a bottom assembly 1, a pulser mechanical execution module 2, an integrated electronic measurement and control module 3, a battery module 4, a vibration reduction module 5 and a fishing head module 6, the bottom assembly 1, the pulser mechanical execution module 2, the integrated electronic measurement and control module 3, the battery module 4, the vibration reduction module 5 and the fishing head module 6 are sequentially connected through an aviation plug from bottom to top, the integrated electronic measurement and control module 3 comprises a magnetic coupler 7, a power output shaft 8, a motor and electronic control unit 9, an integrated measurement unit 10, a connector 11 and a locking device 12 which are sequentially connected from top to bottom, the integrated measurement unit 10 comprises a framework 13, a buffer assembly and a measurement module 14 for measuring while drilling parameters, the framework 13 is in a hollow cylinder shape, the buffer assembly is arranged on the inner cavity wall of the framework 13, and the measurement module 14 is connected with the buffer assembly through a connecting piece 15.
Specifically, bottom assembly 1, pulser machinery execution module 2, integral type electron are measured and control module 3, battery module 4, damping module 5 and are salvaged first module 6 and pass through aviation connector internal thread connection, and are equipped with the sealing washer each other, and the sealing washer is used for sealing the gap of junction, through bearing outside mud pressure to play the guard action to the internal component. This means that there is a magnetic coupling effect between one end of the power take-off shaft 8 and one end of the magnetic coupler 7 so that they can transmit power signals without a direct physical connection. The magnetic coupler 7 is typically made of a magnetic material, and the connection between the two is achieved by transmitting energy to the power take-off shaft 8 via a magnetic field. The power output shaft 8 and the motor are mechanically connected with the electronic control unit 9, such as a bearing, a coupling and the like. This connection is intended to transmit the rotational power of the motor to the power take-off shaft 8 so that it can perform a rotational movement. Meanwhile, the electronic control unit is responsible for controlling the operation of the motor, and the control of the tool string is realized by receiving and processing signals from the measurement module 14 and then sending corresponding control signals to the motor. The electronic control unit processes the signals by receiving them from the measurement module 14. The lower end of the joint 11 can be connected with other drilling equipment or pipe strings and is fixed by a locking device 12.
The buffer component comprises four groups of buffer components and spring pieces 16 arranged in the connector 11, the four groups of buffer components are arranged around the measuring module 14, any one group of buffer components comprises two elastic components 17 and three stress rods 18, the elastic components 17 are alternately connected with the stress rods 18, abutting plates 19 are further arranged in the connector 11, the abutting plates 19 are located on one side, facing the skeleton 13, of the spring pieces 16, jacks for the stress rods 18 to penetrate are arranged on the connector 11 and the skeleton 13, and the stress rods 18 located on one side of the connector 11 in the skeleton 13 penetrate through the jacks and are connected with the abutting plates 19. Specifically, the adjacent ends of the frame 13 and the joint 11 are fixedly connected, wherein the stress rod 18 can move in the frame 13 and the joint 11 through the jack. When the drill bit is stopped under resistance, the forward inertia of the tool string can enable the measuring module 14 to impact forwards, a movable space for the two ends of the measuring module 14 is arranged in the framework 13, and at the moment, the measuring module 14 can release impact force through buffering of the elastic piece 17 and the spring piece 16 under the connection of the connecting piece 15, so that the precise instrument in the measuring module 14 is prevented from being vibrated greatly. The mud and the underground soil pressure can generate pressure on the wall of the framework 13, and the pressure on the measuring module 14 in the lateral direction can be reduced through deformation and pressure release of the elastic piece 17 in the vertical direction. By locating the measurement module 14 in the center surrounded by the cushioning member, the delicate device can be protected from impact or underground pressure in any direction.
The inner wall of the framework 13 is also provided with a guide groove 20 for the movement of the stress rod 18, the guide groove 20 is arranged in parallel with the axis of the framework 13, the guide groove 20 is also provided with an opening facing the axis of the framework 13, and the stress rod 18 between the two elastic pieces 17 is connected with the measuring module 14 through a connecting piece 15. Specifically, the guide grooves 20 are arranged at equal intervals on the cross section of the skeleton 13, the outer diameter of the stress rod 18 is slightly smaller than the inner diameter of the guide groove 20, and the stress rod 18 can slide along the guide groove 20. When the drill bit is subjected to resistance, the stress rod 18 moves along the long axis direction without shaking, so that the stability of the measuring module 14 can be ensured.
As shown in fig. 4, the elastic member 17 is curved in a wave shape, a V-shaped opening 21 is provided at the center of the elastic member 17, and two ends of the elastic member 17 are provided with inserting seats 22 for inserting the force-bearing rod 18. Specifically, the force-bearing rod 18 is connected with the elastic member 17 in an inserting manner through the inserting seat 22, as shown in fig. 3, any group of buffer members are respectively, from left to right, the force-bearing rod 18, the elastic member 17, the force-bearing rod 18, the abutting plate 19 and the spring member 16, wherein the force-bearing rod 18 at the leftmost side is fixedly connected to the inner wall of the framework 13, and when any group of buffer members are installed, the force-bearing rod 18 is in an uncompressed and stretched state. When the skeleton 13 receives impact force along the long side, namely the x-axis direction, the long side of the elastic piece 17 is stressed and compressed; when the skeleton 13 is stressed by side mud pressure, namely in the y-axis direction or the z-axis direction, the short plates of the elastic piece 17 are stressed and compressed, and the impact force directly on the measuring module 14 is released through elastic deformation.
The motor is electrically connected with the electronic control unit 9, and the electronic control unit controls the motor to work according to instructions through calculation and coding by collecting data of the measuring module 14, and then transmits power to the pulser mechanical executing module 2 through the power output shaft 8 and the magnetic coupler 7, and then sends out pulses. Specifically, the electronic control unit collects data from the measurement module 14, including data from the pulser electronic drive module, the directional probe, the vibration monitoring module, and the gamma control module. Then, the electronic control unit calculates and encodes the data, and controls the working state of the motor according to a preset algorithm and logic. After receiving the data from the measurement module 14, the electronic control unit performs analysis and processing according to preset control logic and algorithms. According to the data, the electronic control unit sends out corresponding instructions to the motor, and controls parameters such as rotating speed, direction and the like of the motor so as to realize the expected working state. Once the motor starts to operate as instructed by the electronic control unit, the power take-off shaft 8 rotates. Then, magnetic coupling is established between the power take-off shaft 8 and the magnetic coupler 7, and power is transmitted to the magnetic coupler 7. The magnetic coupler 7 transmits power from the motor to the pulser mechanical execution module 2 so that it can generate a pulse signal. The process ensures that the motor transmits power to the pulser through the control of the electronic control unit, thereby realizing the normal operation of the measuring tool and the generation of pulse signals. The magnetic coupling design well solves the problem of liquid-electricity isolation between the lubricating oil system of the mechanical transmission system and the electronic system, and is beneficial to the realization of integration. The integrated electronic measurement and control module selects a new generation of electronic components, has smaller volume and stronger function, and is simultaneously assisted with a high-precision calibration system such as a Helmholtz coil, so that the tool can be integrated and the related measurement precision can be ensured to reach the industry standard.
The measurement module 14 includes a pulser electronic driving module, a directional probe tube, a vibration monitoring module, and a gamma control module, which are integrally formed and electrically connected with the electronic control unit, respectively. Specifically, the pulser electronic driving module, the directional probe tube, the vibration monitoring module and the gamma control module are fixedly installed through an installation frame in an integrated mode, and the installation frame is connected with the connecting piece 15. The electronic driving module of the pulser is in charge of controlling the emission and frequency adjustment of the pulser, and is electrically connected with the electronic control unit to receive control signals and supply power, so that the electronic control unit is ensured to effectively control the working state and the output frequency of the pulser, and measurement data can be accurately recorded and transmitted in the drilling process; the directional probe is used for measuring parameters such as well deviation, azimuth and the like in the drilling process; the vibration monitoring module is used for monitoring the vibration condition of the tool string in the drilling process so as to evaluate the stability of the drilling process and the abrasion condition of the tool and provide real-time vibration state monitoring and analysis for the drilling operation; the gamma control module is used to monitor gamma ray intensities in the formation to identify formation type and formation structure. Through with the integrative design of measurement module 14 in integrative electronic measurement and control module 3 for the measuring point is close to the drill bit more, shortens the distance between measuring point and the drill bit and reaches within 1m, avoids the well drilling data hysteresis that sensor assembly measured, thereby guarantees instrument measurement's accuracy.
The tool string is sleeved with a sleeve, the sleeve is cylindrical and internally provided with a containing cavity, and the tool string is fixed in the containing cavity. Specifically, the tool string is sleeved with a centralizer, and the centralizer plays a role in supporting and centering the tool string. The centralizer comprises an inner ring, an outer ring and ribs connected between the inner ring and the outer ring, wherein a fixing channel for fixing a tool string is formed inside the inner ring, the outer ring is abutted against the inner wall of the sleeve, and a mud channel is formed between the inner ring and the outer ring.
An embodiment two provides an integrated measurement while drilling tool based on the embodiment one, and a specific implementation flow of the measurement tool further includes:
The tool string is internally provided with a cable which is connected with the ground, the cable is connected with the battery module 4 through an adapter, and the battery module 4 converts the voltage of electric quantity transmission into the voltage required by the electric furnace and is used for supplying power to the pulser electronic driving module, the directional probe tube, the vibration monitoring module and the gamma control module on the measuring module 14. The measurement module 14 sends the collected signals to the signal processing module through the sensor to send the electrical signals of the downhole parameters such as well deviation, azimuth, tool face, temperature, magnetic field intensity and the like to the upper computer through the signal transmission module after the signals are encoded according to the transmission protocol. The receiving antenna of the upper computer receives signals in the same mode, and transmits the drilling data to the ground through a series of operations such as identification, verification, decoding and the like, so that wireless cross transmission of the drilling data is completed.
Compared with the traditional rigid connection damping structure, the measuring circuit and the damper are rigidly connected, and the vibration can collide and impact, so that the circuit structure of the measuring system is damaged, the service life of the measurement while drilling instrument is influenced, and certain defects exist. According to the scheme of the application, through the structural arrangement of the elastic piece 17, the vibration absorption combination in three directions is realized, the spring piece 16 and the elastic piece 17 can jointly eliminate the vibration from the drilling tool in the longitudinal direction in the drilling process, gaps are reserved in the framework 13 and at the two ends of the measuring module 14, and even when the drilling tool collides with a well wall or stone, the reserved gaps can greatly reduce the vibration generated by collision. Through multiple tests, the vibration damping design provided by the application can weaken more than 50% of vibration of the detection element, and can effectively protect precise electronic components in the measurement module 14, so that reliable segmented transmission of underground signals in the drilling process is ensured.
Compared to conventional tool strings, which are typically over 10 meters in length, the present solution greatly shortens the tool string length to 4 meters, the measurement module 14 is electrically shortened to within 1 meter from the bottom assembly 1, and the design can also reduce failures caused by joint connection by about 90%.
In a third embodiment, on the basis of the first embodiment, the present embodiment proposes a controllable joint, and the specific structural principle is as follows:
As shown in fig. 6, the inner wall of the joint 11 is provided with a rack 23 along the long side, and the abutting plate 19 is internally provided with a gear 24 controlled by a motor, a microcontroller and a wireless transmission module. The gear 24 is arranged on two sides of the abutting plate 19, the gear 24 is controlled by a stepping motor, the gear 24 is in tooth contact with the rack 23, the stepping motor is electrically connected with a wireless transmission module through a microcontroller, and the wireless transmission module is connected with a wireless transmission control module on the ground in a wireless signal mode.
By controlling the rotational direction of the gear 24, the traveling direction of the abutment plate 19 can be controlled. When the drill bit drills to a hard stone or an impenetrable soil layer, the abutment plate 19 is moved toward one side of the spring member 16 by wireless control. Because the ground end stops conveying the sleeve, and the rear end of the sleeve is subjected to traction force, when the framework 13 and the joint 11 are close, the joint 11 moves to one side of the framework 13, so that the drill bit is driven to retract, and the non-passing area is bypassed through the change of the direction. The deflection of the drill bit can be adjusted and separated through the control of a single module, and the whole drill bit does not need to be pulled out to the ground. The construction time can be shortened, and the construction efficiency can be improved.
There are, of course, many other embodiments of the invention that can be made by those skilled in the art in light of the above teachings without departing from the spirit or essential scope thereof, but that such modifications and variations are to be considered within the scope of the appended claims.
Claims (7)
1. An integral type measurement while drilling instrument, its characterized in that: including the tool string, the tool string includes bottom assembly (1), pulser machinery execution module (2), integral type electron is measured and control module (3), battery module (4), damping module (5) and is salvaged first module (6), bottom assembly (1), pulser machinery execution module (2), integral type electron are measured and control module (3), battery module (4), damping module (5) and are salvaged first module (6) and are passed through aviation plug connection by supreme down in proper order, integral type electron is measured and control module (3) include from top to bottom magnetic coupler (7), power take off shaft (8), motor and electronic control unit (9), integrated measuring unit (10), connect (11) and locking device (12) that connect in proper order, integrated measuring unit (10) include skeleton (13), buffer assembly and be used for measuring measurement module (14) along with boring the parameter, skeleton (13) are hollow cylindric, buffer assembly sets up on the inner chamber wall of skeleton (13), measurement module (14) are connected with buffer assembly through connecting piece (15).
2. The integrated measurement while drilling tool of claim 1, wherein: the buffer assembly comprises four groups of buffer components and spring pieces (16) arranged in the joint (11), the four groups of buffer components are arranged around the measuring module (14), any one group of buffer components comprises two elastic pieces (17) and three stress rods (18), the elastic pieces (17) are alternately connected with the stress rods (18), abutting plates (19) are further arranged in the joint (11), the abutting plates (19) are located on one side, facing the framework (13), of the spring pieces (16), jacks for the stress rods (18) to penetrate are arranged on the joint (11) and the framework (13), and the stress rods (18) located on one side of the joint (11) in the framework (13) penetrate through the jacks and are connected with the abutting plates (19).
3. The integrated measurement while drilling tool of claim 2, wherein: the inner wall of the framework (13) is also provided with a guide groove (20) for the movement of the stress rod (18), the guide groove (20) is arranged in parallel with the axis of the framework (13), the guide groove (20) is also provided with an opening facing the axis of the framework (13), and the stress rod (18) positioned between the two elastic pieces (17) is connected with the measuring module (14) through the connecting piece (15).
4. The integrated measurement while drilling tool of claim 1, wherein: the elastic piece (17) is bent in a wavy manner, a V-shaped opening (21) is formed in the center of the elastic piece (17), and inserting seats (22) for inserting the stress rods (18) are arranged at two ends of the elastic piece (17).
5. The integrated measurement while drilling tool of claim 1, wherein: the motor is electrically connected with the electronic control unit (9), and the electronic control unit controls the motor to work according to instructions through calculation and coding by collecting data of the measuring module (14), and then transmits power to the pulser mechanical executing module (2) through the power output shaft (8) and the magnetic coupler (7), and then sends out pulses.
6. The integrated measurement while drilling tool of claim 5, wherein: the measuring module (14) comprises a pulser electronic driving module, a directional probe tube, a vibration monitoring module and a gamma control module, and the pulser electronic driving module, the directional probe tube, the vibration monitoring module and the gamma control module are respectively and electrically connected with the electronic control unit.
7. The integrated measurement while drilling tool of claim 1, wherein: the tool string is sleeved with a sleeve, the sleeve is cylindrical and internally provided with a containing cavity, and the tool string is fixed in the containing cavity.
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| CN202410411067.8A CN118008267B (en) | 2024-04-08 | 2024-04-08 | Integral type measurement while drilling instrument |
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