Performance monitoring device for underground hydraulic oscillator

Abstract

The invention provides a performance monitoring device for an underground hydraulic oscillator. The performance monitoring device comprises a mounting part, a detection part and a transmission part, a circulation channel which can be mutually communicated with a drilling fluid channel of the hydraulic oscillator and allows drilling fluid to flow through is formed in the mounting part; a detection cavity is also formed in the mounting part; the detection part is arranged in the detection cavity; the detection part can detect the bit pressure and the acceleration during operation of the hydraulic oscillator and respectively generate a bit pressure value and an acceleration value; the detection cavity is communicated with the circulation channel, so that the detection part can also detect the pressure of the drilling fluid flowing through the circulation channel and generate a hydraulic value; the input end of the transmission part is connected with the output end of the detection part so that the bit pressure value, the acceleration value and the hydraulic pressure value generated by the detection part can be transmitted to the information transmission mechanism through the transmission part. The working state of the hydraulic oscillator can be conveniently obtained in time, so that corresponding drilling process parameters are adjusted, the operation effect of the hydraulic oscillator is prevented from being influenced, and the drilling efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling engineering equipment, and in particular relates to a downhole hydraulic oscillator performance monitoring device. Background Art

[0002] Horizontal wells and extended-reach wells opened in drilling projects have larger oil leakage areas than original vertical wells, which can significantly reduce the cost of production. As a result, horizontal wells and extended-reach wells have been widely used in the exploration and development of fault-block oil and gas reservoirs, offshore, offshore oil fields or environmentally sensitive areas.

[0003] With the continuous advancement of the technology for opening horizontal wells and extended-reach wells, both have become one of the important means to increase production and recovery rate. However, since the drilling method is generally sliding drilling, during the drilling process of horizontal wells and extended-reach wells, when the curvature of the wellbore is large or the horizontal section is long, the drill bit will slide in parallel with the well wall, resulting in a significant increase in the contact area with the well wall compared to the original vertical well, thereby increasing the friction resistance composed of radial friction torque and axial friction resistance. Especially in the horizontal section, the above situation is particularly significant. Due to the friction resistance between the drill bit and the well wall, it is difficult to effectively transmit the drilling pressure to the drill bit, resulting in the drilling pressure being difficult to effectively play a role, which is very likely to cause the pressure-supporting phenomenon.

[0004] In order to avoid the occurrence of underground accidents such as drill bit sticking that affect the safety and efficiency of drilling operations, it is usually adopted to install underground pressure tools such as hydraulic oscillators in the underground drilling tools to generate vibrations, and reduce the friction resistance between the drilling tools and the well wall through the vibrations generated, thereby improving the drilling efficiency. However, when the existing hydraulic oscillator is in an underground environment for underground operations, it is impossible to effectively monitor the working state of the hydraulic oscillator. The staff can only obtain information such as drilling pressure, torque, drilling fluid pump pressure, etc. from the drilling rig set on the ground. It is difficult to accurately grasp the working state of the hydraulic oscillator at least several kilometers away from the ground in the drilling tool. It is impossible to accurately judge whether the actual operating parameters of the hydraulic oscillator, such as vibration, impact, torque, drilling pressure, etc., are within the preset normal working range. Even if the actual working parameters of the hydraulic oscillator deviate, it is impossible to timely discover and adjust the drilling process parameters accordingly, thereby affecting the operating effect of the hydraulic oscillator, so that the hydraulic oscillator cannot play its role to the maximum extent, thereby reducing the drilling efficiency.

[0005] Therefore, the working state of the existing hydraulic oscillator used in the well is difficult to accurately grasp, thereby affecting the drilling efficiency. Summary of the invention

[0006] In view of the above problems, the present invention proposes a downhole hydraulic oscillator performance monitoring device, comprising:

[0007] A mounting portion, wherein a flow channel is provided in the mounting portion and is interconnected with a drilling fluid channel of the hydraulic oscillator and allows the drilling fluid to flow therethrough;

[0008] A detection cavity is also provided in the installation portion;

[0009] A detection unit, the detection unit is arranged in the detection cavity;

[0010] The detection unit is capable of detecting the bit pressure and acceleration when the hydraulic oscillator is in operation, and generating a bit pressure value and an acceleration value respectively;

[0011] The detection cavity is in communication with the circulation channel, so that the detection unit can also detect the pressure of the drilling fluid flowing through the circulation channel and generate a hydraulic pressure value;

[0012] A transmission part, wherein an input end of the transmission part is connected to an output end of the detection part, so that the bit pressure value, the acceleration value and the hydraulic pressure value generated by the detection part can be transmitted to the information transmission mechanism through the transmission part.

[0013] In some specific embodiments, the detection cavity includes:

[0014] A first cavity, wherein the first cavity is opened on an outer wall of one side of the mounting portion;

[0015] A second cavity, the second cavity is opened on the outer wall of the other side of the mounting portion;

[0016] The detection part is respectively arranged in the first cavity and the second cavity for easy installation.

[0017] In some specific embodiments, the detection unit includes:

[0018] A drilling pressure detection component, which is disposed in the first cavity and is used to detect and generate the drilling pressure value;

[0019] An acceleration detection component, the acceleration detection component is disposed in the first cavity and is used to detect and generate the acceleration value;

[0020] a hydraulic pressure detection component, the hydraulic pressure detection component is disposed in the second cavity and is used to detect and generate the hydraulic pressure value;

[0021] The hydraulic pressure detection assembly can be separated from the bit pressure detection assembly and the acceleration detection assembly by the first cavity and the second cavity.

[0022] In some specific embodiments, the bit pressure detection assembly includes:

[0023] A drilling pressure sensor, wherein the drilling pressure sensor is capable of detecting the drilling pressure when the hydraulic oscillator is in operation;

[0024] A drilling pressure measuring circuit, the input end of which is connected to the output end of the drilling pressure sensor, and the drilling pressure detected during the operation of the hydraulic oscillator can be converted into a drilling pressure value through the drilling pressure measuring circuit;

[0025] The acceleration detection component comprises:

[0026] An acceleration sensor, wherein the acceleration sensor is capable of detecting the acceleration of the hydraulic oscillator during operation;

[0027] An acceleration measurement circuit, the input end of which is connected to the output end of the acceleration sensor, and the acceleration measured by the acceleration measurement circuit can convert the acceleration detected during the operation of the hydraulic oscillator into an acceleration value.

[0028] In some specific embodiments, the acceleration measurement circuit and the bit pressure measurement circuit are integrated into one piece.

[0029] In some specific embodiments, the detection cavity further includes:

[0030] a third cavity, the third cavity being opened on the outer wall of the mounting portion around the axial direction of the mounting portion;

[0031] The detection end of the bit pressure sensor is arranged in the third cavity, so that the bit pressure sensor can be arranged around the axial direction of the mounting portion.

[0032] In some specific embodiments, the hydraulic pressure detection component includes:

[0033] a hydraulic sensor capable of detecting the pressure of drilling fluid flowing through the circulation channel;

[0034] A hydraulic measurement circuit, wherein the input end of the hydraulic measurement circuit is connected to the output end of the hydraulic sensor, and the hydraulic measurement circuit can convert the detected pressure of the drilling fluid flowing through the circulation channel into a hydraulic value.

[0035] In some specific embodiments, an inlet is provided between an end of the first cavity close to the hydraulic sensor and the circulation channel, so that the detection end of the hydraulic sensor can be in communication with the circulation channel.

[0036] In some specific embodiments, the first cavity, the second cavity and the third cavity are sequentially connected through the wire holes;

[0037] A connecting channel is provided between the first cavity or the second cavity and the transmission part.

[0038] In some specific embodiments, a first opening capable of embedding a first cover plate is formed on a side of the first cavity away from the flow channel;

[0039] A second opening capable of embedding a second cover plate is formed on a side of the second cavity away from the circulation channel;

[0040] A third opening capable of embedding a third cover plate is formed on a side of the third cavity away from the circulation channel.

[0041] The downhole hydraulic oscillator performance monitoring device of the present invention can introduce drilling fluid into the drilling fluid channel of the hydraulic oscillator through the circulation channel of the mounting part. The detection part can be installed by the detection cavity arranged on the mounting part, so that the detection part can detect the drilling pressure and acceleration when the hydraulic oscillator is running, and generate corresponding drilling pressure values ​​and acceleration values ​​respectively. And by the connection arrangement between the detection cavity and the circulation channel, the detection part can also detect the pressure of the drilling fluid flowing through the circulation channel and generate corresponding hydraulic pressure values. Under the action of the transmission part, the generated drilling pressure value, acceleration value and hydraulic pressure value can be transmitted to the information transmission mechanism, so that the staff can obtain the working status of the hydraulic oscillator in time, so as to adjust the corresponding drilling process parameters in time, thereby avoiding affecting the operating effect of the hydraulic oscillator, so that the hydraulic oscillator can play its role to the greatest extent and improve the drilling efficiency.

[0042] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 A schematic diagram of a downhole hydraulic oscillator performance monitoring device in an embodiment of the present invention is shown;

[0045] Figure 2 A schematic diagram showing the connection between the downhole hydraulic oscillator performance monitoring device and the hydraulic oscillator in an embodiment of the present invention is shown;

[0046] Figure 3 An enlarged schematic diagram of a downhole hydraulic oscillator performance monitoring device in an embodiment of the present invention is shown;

[0047] Figure 4 A schematic diagram showing the arrangement position of the strain gauge in the embodiment of the present invention;

[0048] Figure 5 The figure shows the operation principle diagram of the acceleration value and the hydraulic pressure value in the embodiment of the present invention.

[0049] In the figure, 100, mounting part; 110, circulation channel; 120, first cavity; 121, inlet; 122, first cover plate; 130, second cavity; 131, second cover plate; 140, third cavity; 141, third cover plate; 200, detection part; 210, hydraulic detection component; 211, hydraulic sensor; 212, hydraulic measurement circuit; 220, acceleration detection component; 221, acceleration sensor; 222, acceleration measurement circuit; 230, drilling pressure detection component; 231, drilling pressure sensor; 2311, strain gauge; 232, drilling pressure measurement circuit; 300, transmission part; 400, hydraulic oscillator; 500, information transmission mechanism; 600, drilling pipe. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Reference Figure 1 The present invention provides a downhole hydraulic oscillator performance monitoring device, comprising: an installation part 100, a detection part 200 and a transmission part 300. A flow channel 110 is provided in the installation part 100, which can be interconnected with the drilling fluid channel of the hydraulic oscillator 400 and through which the drilling fluid flows. A detection cavity is also provided in the installation part 100. The detection part 200 is arranged in the detection cavity. The detection part 200 can detect the drilling pressure and acceleration when the hydraulic oscillator 400 is running, and generate a drilling pressure value and an acceleration value respectively. The detection cavity is connected to the flow channel 110, so that the detection part 200 can also detect the pressure of the drilling fluid flowing through the flow channel 110 and generate a hydraulic pressure value. The input end of the transmission part 300 is connected to the output end of the detection part 200, so that the drilling pressure value, acceleration value and hydraulic pressure value generated by the detection part 200 can be transmitted to the information transmission mechanism 500 through the transmission part 300.

[0052] Specifically, the interior of the mounting portion 100 is hollow, so that a circulation channel 110 is formed inside the mounting portion 100, and both ends of the circulation channel 110 are set as openings, so that one end of the circulation channel 110 of the mounting portion 100 can be interconnected with the drilling fluid channel of the hydraulic oscillator 400, so that the drilling fluid can flow into the circulation channel 110. A detection cavity is also opened in the mounting portion 100, and the detection cavity and the circulation channel 110 are adjacently arranged. The detection portion 200 is arranged in the detection cavity. The drilling pressure and acceleration when the hydraulic oscillator 400 is running can be detected by the detection portion 200, and corresponding drilling pressure values ​​and acceleration values ​​can be generated according to the detected drilling pressure and acceleration when the hydraulic oscillator 400 is running. At the same time, one end of the detection cavity is connected with the circulation channel 110, so that the detection portion 200 can also detect the pressure of the drilling fluid flowing into the circulation channel 110 and generate a corresponding hydraulic pressure value. The input end of the transmission unit 300 is connected to the output end of the detection unit 200, so that the drilling pressure value, acceleration value and hydraulic pressure value generated by the detection unit 200 can be transmitted to the transmission unit 300, and the drilling pressure value, acceleration value and hydraulic pressure value generated by the detection unit 200 can be transmitted to the information transmission mechanism 500 through the transmission unit 300, and then the drilling pressure value, acceleration value and hydraulic pressure value transmitted to the information transmission mechanism 500 can reach the ground through the drilling pipe 600, and the detection results of the drilling pressure value, acceleration value and hydraulic pressure value can be received by the staff on the ground. This enables the staff to obtain the test results of the drilling pressure, acceleration value and hydraulic pressure value in time and understand the real-time working status of the hydraulic oscillator 400, so that the process parameters during drilling can be adjusted in time and accordingly according to the real-time working status of the hydraulic oscillator 400, thereby achieving the purpose of avoiding affecting the operating effect of the hydraulic oscillator 400, enabling the hydraulic oscillator 400 to adjust the operating state according to the specific actual situation, give full play to the role of the hydraulic oscillator 400, and make the drilling process smoother and improve the overall efficiency of the drilling project when the hydraulic oscillator 400 can play its role to the greatest extent.

[0053] Furthermore, the mounting portion 100 is a tubular structure, so that it is convenient to connect the mounting portion 100 to the hydraulic oscillator 400 which is also a tubular structure.

[0054] Furthermore, both ends of the circulation channel 110 extend along the axial direction of the mounting portion 100, and the detection cavity is arranged on the outer wall of the mounting portion 100 in the axial direction of the mounting portion 100, so that the detection cavity can be covered by the circulation channel 110 of the mounting portion 100, which is convenient for opening the detection cavity and can also make the structural setting of the mounting portion 100 more reasonable.

[0055] It should be noted that the mounting portion 100 can be disposed at one end of the hydraulic oscillator 400 directly connected to the reciprocating vibration actuator, ie, the oscillation nipple, so as to ensure the accuracy of the detection results of the drilling pressure and acceleration when the hydraulic oscillator 400 is in operation.

[0056] Reference Figure 5 The acceleration sensor can detect the original value of the acceleration of the vibration of the hydraulic oscillator 400 during operation, and the optimal oscillation frequency of the hydraulic oscillator 400 is determined according to the model of the hydraulic oscillator 400 when it is designed and produced. By multiplying the optimal oscillation frequency of the hydraulic oscillator 400 with the original value of the acceleration of the vibration of the hydraulic oscillator 400 during operation, the acceleration fluctuation of the vibration after preliminary processing can be obtained under the action of the filter of the acceleration sensor, and then under the action of the acceleration measurement circuit, Fourier transform is performed to obtain the fluctuation frequency of the converted acceleration, that is, the acceleration value. The hydraulic sensor can detect the original value of the pressure of the drilling fluid, and the optimal oscillation frequency of the hydraulic oscillator 400 is determined according to the model of the hydraulic oscillator 400 when it is designed and produced. By multiplying the optimal oscillation frequency of the hydraulic oscillator 400 with the original value of the pressure of the drilling fluid detected, the pressure fluctuation of the drilling fluid after preliminary processing can be obtained under the action of the filter of the hydraulic sensor, and then Fourier transform is performed under the action of the hydraulic measurement circuit to obtain the fluctuation frequency of the pressure of the drilling fluid after conversion, that is, the hydraulic value. Similarly, the original value of the drilling pressure of the vibration of the hydraulic oscillator 400 during operation can be detected by the drilling pressure sensor, and the optimal oscillation frequency of the hydraulic oscillator 400 is determined according to the model of the hydraulic oscillator 400 when it is designed and produced. By multiplying the optimal oscillation frequency of the hydraulic oscillator 400 with the original value of the drilling pressure of the vibration of the hydraulic oscillator 400 during operation, the drilling pressure of the vibration after preliminary processing can be obtained under the action of the drilling pressure measurement circuit, and then Fourier transform is performed to obtain the fluctuation frequency of the drilling pressure formed by the conversion, that is, the drilling pressure value.

[0057] Among them, the downhole hydraulic oscillator with an outer diameter of 171.4mm has an optimal oscillation frequency of 16HZ to 17HZ during design and production. The pressure fluctuation range of the drilling fluid when the hydraulic oscillator 400 is in operation is 0 to 4.8MPa, and the ultimate drilling pressure when the hydraulic oscillator 400 is in operation is less than 315 tons.

[0058] In some specific embodiments of the present invention, referring to Figure 2 The detection cavity includes: a first cavity 120 and a second cavity 130. The first cavity 120 is opened on the outer wall of one side of the mounting portion 100. The second cavity 130 is opened on the outer wall of the other side of the mounting portion 100. The detection portion 200 is respectively arranged in the first cavity 120 and the second cavity 130 for easy installation.

[0059] Specifically, the first cavity 120 surrounds the side wall of the mounting portion 100 and is opened on one side of the mounting portion 100 in the axial direction, and both ends of the first cavity 120 extend along the axial direction of the mounting portion 100. The second cavity 130 surrounds the side wall of the mounting portion 100 and is opened on the other side of the mounting portion 100 in the axial direction, and both ends of the second cavity 130 extend along the axial direction of the mounting portion 100. The components of the detection portion 200 for detecting the drilling pressure when the hydraulic oscillator 400 is in operation, the components for detecting the acceleration when the hydraulic oscillator 400 is in operation, and the components for detecting the pressure of the drilling fluid flowing into the circulation channel 110 can be installed respectively through the first cavity 120 and the second cavity 130. Each part of the detection portion 200 can be installed separately, so as to facilitate the installation of the components.

[0060] Among them, the component for detecting the drilling pressure when the hydraulic oscillator 400 is in operation and the component for detecting the acceleration when the hydraulic oscillator 400 is in operation are placed together in the first cavity 120, and the component for detecting the pressure of the drilling fluid flowing into the circulation channel 110 is placed in the second cavity 130. The second cavity 130 where the component for detecting the pressure of the drilling fluid flowing into the circulation channel 110 is placed is connected to the circulation channel 110, so that the component for detecting the pressure of the drilling fluid flowing into the circulation channel 110 can detect the pressure of the drilling fluid flowing into the circulation channel 110. Alternatively, a component for detecting the drilling pressure when the hydraulic oscillator 400 is in operation and a component for detecting the acceleration when the hydraulic oscillator 400 is in operation are placed together in the second cavity 130, and a component for detecting the pressure of the drilling fluid flowing into the circulation channel 110 is placed in the first cavity 120. The first cavity 120 in which the component for detecting the pressure of the drilling fluid flowing into the circulation channel 110 is placed is connected to the circulation channel 110, so that the component for detecting the pressure of the drilling fluid flowing into the circulation channel 110 can detect the pressure of the drilling fluid flowing into the circulation channel 110. By disposing the first cavity 120 and the second cavity 130, the components for detecting the drilling pressure when the hydraulic oscillator 400 is in operation and the components for detecting the acceleration when the hydraulic oscillator 400 is in operation can be separated from the components for detecting the pressure of the drilling fluid flowing into the circulation channel 110 which may come into contact with the drilling fluid, thereby improving the safety during detection and preventing the drilling fluid from coming into contact with the components for detecting the drilling pressure when the hydraulic oscillator 400 is in operation and the components for detecting the acceleration when the hydraulic oscillator 400 is in operation.

[0061] Further, the first cavity 120 and the second cavity 130 are respectively connected to the transmission part 300, so that the bit pressure value, acceleration value and hydraulic pressure value detected and generated by the detection part 200 can be transmitted to the transmission part 300. Alternatively, a wire hole for connecting the first cavity 120 and the second cavity 130 is opened between the first cavity 120 and the second cavity 130, so that the lines between the components for detecting the bit pressure when the hydraulic oscillator 400 is running, the components for detecting the acceleration when the hydraulic oscillator 400 is running, and the components for detecting the pressure of the drilling fluid flowing into the circulation channel 110 can be integrated through the wire hole and connected to the transmission part 300. At this time, it is only necessary to connect the first cavity 120 or the second cavity 130 to the transmission part 300, so as to facilitate the installation of various components and ensure the stability of the setting structure.

[0062] In some specific embodiments of the present invention, referring to Figure 3 The detection unit 200 includes: a drilling pressure detection component 230, an acceleration detection component 220 and a hydraulic pressure detection component 210. The drilling pressure detection component 230 is arranged in the first cavity 120, and is used to detect and generate a drilling pressure value. The acceleration detection component 220 is arranged in the first cavity 120, and is used to detect and generate an acceleration value. The hydraulic pressure detection component 210 is arranged in the second cavity 130, and is used to detect and generate a hydraulic pressure value. The first cavity 120 and the second cavity 130 can separate the hydraulic pressure detection component 210 from the drilling pressure detection component 230 and the acceleration detection component 220.

[0063] Specifically, the drilling pressure detection component 230 is arranged in the first cavity 120. When the hydraulic oscillator 400 is running, the drilling pressure detection component 230 can detect the drilling pressure of the hydraulic oscillator 400 when it is running, and can generate a corresponding drilling pressure value according to the detected drilling pressure. The acceleration detection component 220 is also arranged in the first cavity 120. When the hydraulic oscillator 400 is running, the acceleration detection component 220 can detect the acceleration of the hydraulic oscillator 400 when it is running, and can generate a corresponding acceleration value according to the detected acceleration. The hydraulic pressure detection component 210 is arranged in the second cavity 130, and the second cavity 130 is connected to the circulation channel 110. When the hydraulic oscillator 400 is running, the hydraulic pressure detection component 210 can detect the pressure of the drilling fluid flowing into the circulation channel 110, and can generate a corresponding hydraulic pressure value according to the detected pressure of the drilling fluid. The output end of the drilling pressure detection component 230, the output end of the acceleration detection component 220 and the output end of the hydraulic detection component 210 are connected through a wire hole and a line that can be passed through the wire hole, thereby realizing the integration of the lines of the output end of the drilling pressure detection component 230, the output end of the acceleration detection component 220 and the output end of the hydraulic detection component 210, so as to facilitate connection with the transmission part 300.

[0064] In some specific embodiments of the present invention, referring to Figure 3 The drilling pressure detection component 230 includes: a drilling pressure sensor 231 and a drilling pressure measurement circuit 232. The drilling pressure sensor 231 can detect the drilling pressure when the hydraulic oscillator 400 is running. The input end of the drilling pressure measurement circuit 232 is connected to the output end of the drilling pressure sensor 231, and the drilling pressure when the hydraulic oscillator 400 is running can be converted into a drilling pressure value through the drilling pressure measurement circuit 232. The acceleration detection component 220 includes: an acceleration sensor 221 and an acceleration measurement circuit 222. The acceleration sensor 221 can detect the acceleration when the hydraulic oscillator 400 is running. The input end of the acceleration measurement circuit 222 is connected to the output end of the acceleration sensor 221, and the acceleration when the hydraulic oscillator 400 is running can be converted into an acceleration value through the acceleration measurement circuit 222.

[0065] Specifically, one end of the flow channel 110 of the mounting portion 100 is an input port that can be connected to the hydraulic oscillator 400. The drilling pressure sensor 231 is disposed at one end of the second cavity 130 close to the input port of the flow channel 110, so that the drilling pressure sensor 231 can be closer to the hydraulic oscillator 400, thereby ensuring the accuracy of the drilling pressure detected by the drilling pressure sensor 231 when the hydraulic oscillator 400 is in operation. The drilling pressure measurement circuit 232 is disposed in the second cavity 130, and the input end of the drilling pressure measurement circuit 232 and the output end of the drilling pressure sensor 231 enable the detection result of the drilling pressure detected by the drilling pressure sensor 231 when the hydraulic oscillator 400 is in operation to be transmitted to the drilling pressure measurement circuit 232 for processing, thereby generating a corresponding drilling pressure value. At the same time, the acceleration sensor 221 is arranged in the second cavity 130, and the acceleration measurement circuit 222 is arranged in the second cavity 130. The input end of the acceleration measurement circuit 222 is connected to the output end of the acceleration sensor 221, so that the detection result of the acceleration of the hydraulic oscillator 400 during operation detected by the acceleration sensor 221 can be transmitted to the acceleration measurement circuit 222 for processing, so that the corresponding acceleration value can be generated.

[0066] It should be noted that the drilling pressure sensor 231 , the acceleration sensor 221 , the drilling pressure measurement circuit 232 and the acceleration measurement circuit 222 are all existing devices.

[0067] Further, refer to Figure 4 The drilling pressure sensor 231 can detect the drilling pressure when the hydraulic oscillator 400 is running by setting a strain gauge 2311. The strain gauge 2311 of the drilling pressure sensor 231 can detect the drilling pressure change and frequency in the axial direction, amplify it through a differential operational amplifier, and collect and measure it through a high-resolution analog-to-digital converter to a digital signal processor for processing and analysis.

[0068] Furthermore, the acceleration sensor 221 may be a three-axis accelerometer, which can measure the acceleration of the vibration in the axial direction when the downhole hydraulic oscillator 400 is running. When the three-axis accelerometer detects the acceleration of the vibration when the hydraulic oscillator 400 is running, it is amplified by a differential operational amplifier, and the high-resolution analog-to-digital converter collects and measures it to a digital signal processor for processing and analysis.

[0069] In some specific embodiments of the present invention, referring to Figure 3 The acceleration measurement circuit 222 and the bit pressure measurement circuit 232 are integrated into one body, so that the space occupied by the acceleration measurement circuit 222 and the bit pressure measurement circuit 232 in the second cavity 130 can be reduced.

[0070] Furthermore, the acceleration sensor 221 is arranged at one end of the second cavity 130 away from the input port of the circulation channel 110, and the integrated acceleration measurement circuit 222 and the drilling pressure measurement circuit 232 are arranged between the acceleration sensor 221 and the drilling pressure sensor 231, so as to facilitate the acceleration sensor 221 and the drilling pressure sensor 231 to be connected to the integrated acceleration measurement circuit 222 and the drilling pressure measurement circuit 232 respectively.

[0071] In some specific embodiments of the present invention, referring to Figure 2 The detection cavity further includes: a third cavity 140. The third cavity 140 is opened on the outer wall of the mounting portion 100 around the axial direction of the mounting portion 100. The detection end of the drilling pressure sensor 231 is arranged in the third cavity 140, so that the drilling pressure sensor 231 can be arranged around the axial direction of the mounting portion 100.

[0072] Specifically, the third cavity 140 is disposed between the second cavity 130 and one end of the mounting portion 100 where the input port is provided, and the third cavity 140 is disposed around the axial direction of the mounting portion 100. The detection end of the drilling pressure sensor 231 is provided with a plurality of strain gauges 2311, and the plurality of strain gauges 2311 are disposed in the third cavity 140, and the plurality of strain gauges 2311 are uniformly arranged in an array around the axial direction of the mounting portion 100. The third cavity 140 enables the detection end of the drilling pressure sensor 231 to be disposed closer to the input port of the mounting portion 100, that is, the detection end of the drilling pressure sensor 231 can be disposed closer to the hydraulic oscillator 400 during operation, thereby ensuring the accuracy of the drilling pressure detection of the hydraulic oscillator 400 during operation.

[0073] In some specific embodiments of the present invention, referring to Figure 3The hydraulic detection component 210 includes: a hydraulic sensor 211 and a hydraulic measurement circuit 212. The hydraulic sensor 211 can detect the pressure of the drilling fluid flowing through the circulation channel 110. The input end of the hydraulic measurement circuit 212 is connected to the output end of the hydraulic sensor 211, and the hydraulic measurement circuit 212 can convert the detected pressure of the drilling fluid flowing through the circulation channel 110 into a hydraulic value.

[0074] Specifically, the hydraulic sensor 211 is disposed in the first cavity 120, the hydraulic measurement circuit 212 is disposed in the second cavity 130, and the input end of the hydraulic measurement circuit 212 is connected to the output end of the hydraulic sensor 211, so that the detection result of the pressure of the drilling fluid flowing into the circulation channel 110 detected by the hydraulic sensor 211 can be transmitted to the hydraulic measurement circuit 212 for processing, so as to generate a corresponding hydraulic value. Among them, the detection end of the hydraulic sensor 211 is connected to the circulation channel 110, so that the hydraulic sensor 211 can detect the pressure of the drilling fluid in the circulation channel 110.

[0075] When the hydraulic sensor 211 senses the change in the pressure of the drilling fluid in the circulation channel 110, it can convert it into a frequency signal corresponding to the pressure value, and output it to the hydraulic measurement circuit 212 in the form of a high-frequency square wave signal. The hydraulic measurement circuit 212 shapes the high-frequency square wave signal through a comparator and inputs it into the frequency signal capture unit in the digital signal controller in the circuit. At the same time, the pressure sensor will also output a high-frequency reference frequency signal to the timer of the frequency signal capture unit in the digital signal controller, which is used as a reference for measuring the high-frequency square wave signal of the drilling fluid pressure. The period and frequency of the high-frequency square wave signal of the drilling fluid pressure are then measured, and based on the correspondence between the pressure and frequency of the drilling fluid provided by the pressure sensor, the measured high-frequency square wave signal of the drilling fluid pressure can be converted into a hydraulic value.

[0076] It should be noted that the hydraulic pressure sensor 211 and the hydraulic pressure measurement circuit 212 are both existing devices.

[0077] In some specific embodiments of the present invention, referring to Figure 3 An inlet 121 is provided between one end of the first cavity 120 close to the hydraulic sensor 211 and the circulation channel 110 , so that the detection end of the hydraulic sensor 211 can be communicated with the circulation channel 110 .

[0078] Specifically, an inlet 121 is opened between one end of the first cavity 120 and the circulation channel 110, one end of the inlet 121 is connected to the circulation channel 110, and the other end of the inlet 121 is connected to the first cavity 120 and is arranged opposite to the detection end of the hydraulic sensor 211, so that the detection end of the hydraulic sensor 211 can detect the pressure of the drilling fluid flowing through the circulation channel 110.

[0079] Furthermore, a sealing ring is provided in the inlet 121, so that while ensuring the sealing of the circulation channel 110, the detection end of the hydraulic sensor 211 can detect the pressure of the drilling fluid, thereby preventing the hydraulic sensor 211 and the hydraulic measurement circuit 212 arranged in the first cavity 120 from being damaged due to the drilling fluid easily flowing into the first cavity 120.

[0080] In some specific embodiments of the present invention, referring to Figure 3 The first cavity 120, the second cavity 130 and the third cavity 140 are connected in sequence through the wire holes. A connecting channel is provided between the first cavity 120 or the second cavity 130 and the transmission part 300.

[0081] Specifically, a wire hole connecting the first cavity 120 and the second cavity 130 is provided between the first cavity 120 and the second cavity 130, and another wire hole connecting the second cavity 130 and the third cavity 140 is provided between the second cavity 130 and the third cavity 140. The strain gauge 2311 of the drilling pressure sensor 231 is arranged in the third cavity 140 in a surrounding manner, and the multiple strain gauges 2311 of the drilling pressure sensor 231 are connected in series, and are connected to the input end of the integrated acceleration measurement circuit 222 and the drilling pressure measurement circuit 232 arranged in the second cavity 130 through the line and the wire hole arranged between the second cavity 130 and the third cavity 140. The output end of the acceleration sensor 221 is connected to the input end of the integrated acceleration measurement circuit 222 and the drilling pressure measurement circuit 232 through the line. The output end of the hydraulic pressure sensor 211 is connected to the input end of the hydraulic pressure measurement circuit 212 through the line. The output end of the hydraulic measurement circuit 212 and the output ends of the integrated acceleration measurement circuit 222 and the drilling pressure measurement circuit 232 are integrated through a wire hole set between the first cavity 120 and the second cavity 130 to achieve output circuit integration, so that only the first cavity 120 or the second cavity 130 needs to be connected to the transmission part 300, avoiding complicated structure.

[0082] Furthermore, an output port is provided between the first cavity 120 or the second cavity 130 and the transmission part 300. The integrated output circuit can be connected to the transmission part 300 through the output port.

[0083] Furthermore, the output port is opened between the second cavity 130 and the transmission part 300. Since there are many components arranged in the second cavity 130, the number of lines in the second cavity 130 will also be more complicated. By opening the output port between the second cavity 130 and the transmission part 300, it is possible to avoid the complicated lines in the second cavity 130 from passing through the wire hole arranged between the first cavity 120 and the second cavity 130, thereby limiting the inner diameter of the wire hole, and further improving the sealing between the first cavity 120 and the second cavity 130.

[0084] Furthermore, the transmission part 300 is arranged in the middle of the circulation channel 110, and the output port is arranged through the outer wall of the mounting part 100, so as to make full use of the space in the circulation channel 110. While ensuring the normal operation of the transmission part 300, the occupied space of the downhole hydraulic oscillator performance monitoring device is limited during use, thereby facilitating use.

[0085] Further, refer to Figure 1 The transmission part 300 is a MWD (measurement while drilling) communication docking structure, which can lead the lines of the output ends of various components in the first cavity 120, the second cavity 130 and the third cavity 140 from the first cavity 120, the second cavity 130 and the third cavity 140 to the center of the circulation channel 110, and is used to be electrically connected to the information transmission mechanism 500, so that the detected and generated information such as the drilling pressure value, acceleration value and hydraulic pressure value can be transmitted to the information transmission mechanism 500, and then transmitted to the staff on the ground through the drilling pipe 600, so that the staff can use it for analysis and processing, and use it as a basis for adjusting the drilling process parameters.

[0086] Furthermore, the information transmission mechanism 500 is a docking mechanism of an MWD drilling fluid pulse pressure information transmission tool.

[0087] In some specific embodiments of the present invention, referring to Figure 3 The first cavity 120 has a first opening on the side away from the circulation channel 110, in which the first cover plate 122 can be embedded. The second cavity 130 has a second opening on the side away from the circulation channel 110, in which the second cover plate 131 can be embedded. The third cavity 140 has a third opening on the side away from the circulation channel 110, in which the third cover plate 141 can be embedded.

[0088] Specifically, a first opening is provided on a side of the first cavity 120 away from the circulation channel 110 to facilitate the installation of the hydraulic sensor 211 and the hydraulic measurement circuit 212. The first cover plate 122 is detachably covered on the first opening, so that the first cavity 120 can be sealed after the installation of the hydraulic sensor 211 and the hydraulic measurement circuit 212 is completed, and the hydraulic sensor 211 and the hydraulic measurement circuit 212 are isolated from the drilling fluid in the wellbore, thereby protecting the hydraulic sensor 211 and the hydraulic measurement circuit 212 in the first cavity 120. A second opening is provided on the side of the second cavity 130 away from the circulation channel 110, which is convenient for installing and placing the acceleration sensor 221 and the integrated drilling pressure measurement circuit 232 and the acceleration measurement circuit 222. The second cover plate 131 is detachably covered on the second opening, so that the second cavity 130 can be sealed after the acceleration sensor 221 and the integrated drilling pressure measurement circuit 232 and the acceleration measurement circuit 222 are installed, and the acceleration sensor 221 and the integrated drilling pressure measurement circuit 232 and the acceleration measurement circuit 222 are isolated from the drilling fluid in the wellbore, thereby protecting the acceleration sensor 221 and the integrated drilling pressure measurement circuit 232 and the acceleration measurement circuit 222 in the second cavity 130. A third opening is provided on a side of the third cavity 140 away from the circulation channel 110 for facilitating the installation of multiple strain gauges 2311 of the drilling pressure sensor 231. The third cover plate 141 is detachably covered on the third opening, so that the third cavity 140 can be sealed after the installation of the multiple strain gauges 2311 of the drilling pressure sensor 231 is completed, and the multiple strain gauges 2311 of the drilling pressure sensor 231 are isolated from the drilling fluid in the wellbore, thereby protecting the multiple strain gauges 2311 of the drilling pressure sensor 231 in the third cavity 140.

[0089] Furthermore, the third opening is opened on the outer wall of the mounting portion 100 around the axial direction of the mounting portion 100 , and the third cover plate 141 is cylindrical, so that the third cover plate 141 can be arranged on the third opening around the axial direction of the mounting portion 100 .

[0090] Furthermore, sealing rings are provided between the first cover plate 122 and the first opening, between the second cover plate 131 and the second cover plate 131, and between the third cover plate 141 and the third opening, thereby ensuring the sealing of the first cavity 120, the second cavity 130 and the third cavity 140, and further protecting the various components arranged in the first cavity 120, the second cavity 130 and the third cavity 140.

[0091] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A downhole hydraulic oscillator performance monitoring device, characterized in that: include: A mounting portion (100), wherein the mounting portion (100) is provided with a flow channel (110) capable of communicating with a drilling fluid channel of the hydraulic oscillator (400) and allowing drilling fluid to flow therethrough; A detection cavity is also provided in the installation portion (100); A detection unit (200), the detection unit (200) being arranged in the detection cavity; The detection unit (200) is capable of detecting the bit pressure and acceleration of the hydraulic oscillator (400) during operation, and generating a bit pressure value and an acceleration value respectively; The detection cavity is in communication with the circulation channel (110), so that the detection unit (200) can also detect the pressure of the drilling fluid flowing through the circulation channel (110) and generate a hydraulic pressure value; A transmission unit (300), wherein an input end of the transmission unit (300) is connected to an output end of the detection unit (200), so that the bit pressure value, the acceleration value and the hydraulic pressure value generated by the detection unit (200) can be transmitted to the information transmission mechanism (500) through the transmission unit (300).

2. The downhole hydraulic vibrator performance monitoring device according to claim 1, characterized in that: The detection cavity comprises: A first cavity (120), the first cavity (120) being opened on an outer wall of one side of the mounting portion (100); a second cavity (130), the second cavity (130) being opened on the outer wall of the other side of the mounting portion (100); The detection unit (200) is respectively arranged in the first cavity (120) and the second cavity (130) to facilitate installation.

3. The downhole hydraulic vibrator performance monitoring device according to claim 2, characterized in that: The detection unit (200) comprises: A drilling pressure detection component (230), the drilling pressure detection component (230) is arranged in the first cavity (120) and is used to detect and generate the drilling pressure value; an acceleration detection component (220), the acceleration detection component (220) being disposed in the first cavity (120) and being used to detect and generate the acceleration value; a hydraulic pressure detection component (210), the hydraulic pressure detection component (210) being disposed in the second cavity (130) and being used to detect and generate the hydraulic pressure value; The hydraulic detection component (210) can be separated from the bit pressure detection component (230) and the acceleration detection component (220) by the first cavity (120) and the second cavity (130).

4. The downhole hydraulic vibrator performance monitoring device according to claim 3, characterized in that: The drilling pressure detection component (230) comprises: A drilling pressure sensor (231), wherein the drilling pressure sensor (231) is capable of detecting the drilling pressure when the hydraulic oscillator (400) is in operation; A drilling pressure measurement circuit (232), wherein an input end of the drilling pressure measurement circuit (232) is connected to an output end of the drilling pressure sensor (231), and the drilling pressure measurement circuit (232) can convert the drilling pressure detected during the operation of the hydraulic oscillator (400) into a drilling pressure value; The acceleration detection component (220) comprises: An acceleration sensor (221), wherein the acceleration sensor (221) is capable of detecting the acceleration of the hydraulic oscillator (400) during operation; An acceleration measurement circuit (222), wherein an input end of the acceleration measurement circuit (222) is connected to an output end of the acceleration sensor (221), and the acceleration measurement circuit (222) can convert the detected acceleration of the hydraulic oscillator (400) during operation into an acceleration value.

5. The downhole hydraulic vibrator performance monitoring device according to claim 4, characterized in that: The acceleration measurement circuit (222) and the drilling pressure measurement circuit (232) are an integrated structure.

6. The downhole hydraulic vibrator performance monitoring device according to claim 4, characterized in that: The detection cavity also includes: a third cavity (140), the third cavity (140) being arranged around the axial direction of the mounting portion (100) and being opened on the outer wall of the mounting portion (100); The detection end of the bit pressure sensor (231) is arranged in the third cavity (140), so that the bit pressure sensor (231) can be arranged around the axial direction of the mounting portion (100).

7. The downhole hydraulic vibrator performance monitoring device according to claim 3, characterized in that: The hydraulic pressure detection component (210) comprises: a hydraulic sensor (211), the hydraulic sensor (211) being capable of detecting the pressure of the drilling fluid flowing through the circulation channel (110); A hydraulic measurement circuit (212), wherein an input end of the hydraulic measurement circuit (212) is connected to an output end of the hydraulic sensor (211), and the hydraulic measurement circuit (212) can convert the detected pressure of the drilling fluid flowing through the circulation channel (110) into a hydraulic value.

8. The downhole hydraulic vibrator performance monitoring device according to claim 7, characterized in that: An inlet (121) is provided between one end of the first cavity (120) close to the hydraulic sensor (211) and the circulation channel (110), so that the detection end of the hydraulic sensor (211) can be in communication with the circulation channel (110).

9. The downhole hydraulic vibrator performance monitoring device according to claim 6, characterized in that: The first cavity (120), the second cavity (130) and the third cavity (140) are connected in sequence through the wire holes; A connecting channel is provided between the first cavity (120) or the second cavity (130) and the transmission part (300).

10. The downhole hydraulic vibrator performance monitoring device according to claim 6, characterized in that: A first opening capable of embedding a first cover plate (122) is provided on a side of the first cavity (120) away from the circulation channel (110); A second opening capable of embedding a second cover plate (131) is formed on a side of the second cavity (130) away from the circulation channel (110); A third opening capable of embedding a third cover plate (141) is provided on a side of the third cavity (140) away from the circulation channel (110).

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