Marine fine pressure control well drilling patrol device and patrol method

Abstract

The invention belongs to the field of petroleum and natural gas drilling engineering, and particularly relates to an ocean fine pressure control drilling inspection device and method. A wellhead monitoring device is used for monitoring locking information of a hoop of an annular blowout preventer; the drill floor monitoring device is used for monitoring the coupling information of the drilling tool; the gas cut monitoring device is used for monitoring gas cut information in the well pipe; the pressure monitoring and automatic control system state monitoring device is used for monitoring valve information of the wellhead device; and the remote control center is used for receiving information sent by the wellhead monitoring device, the drill floor monitoring device, the gas cut monitoring device and the pressure monitoring and automatic control system state monitoring device. According to the invention, state monitoring of different processes such as a drill floor surface, a well mouth, a gas cut state, pressure monitoring and an automatic control system is realized, information interaction with a fine pressure control well drilling control center can be realized, whole-process monitoring of an equipment operation process is guaranteed, safety of a fine pressure control well drilling operation process is guaranteed, and labor force is saved.

Description

Technical Field

[0001] The invention belongs to the field of oil and gas drilling engineering, and in particular relates to a marine fine pressure controlled drilling inspection device and an inspection method. Background Art

[0002] Marine precision pressure-controlled drilling technology uses a closed, pressurized drilling fluid circulation system to accurately control the wellbore pressure profile, achieve automatic control of different drilling operations such as drilling, column connection, and tripping, and stabilize the bottom hole pressure. It can effectively solve complex marine drilling problems such as narrow density windows, shallow surface hazards, and riser air intake, which is conducive to reducing costs and increasing efficiency.

[0003] Chinese Patent: CN115822550A provides an intelligent control system for marine precision pressure-controlled drilling, including: a data acquisition subsystem set up on the marine platform, used to collect real-time status data during marine precision pressure-controlled drilling; a land remote control subsystem set up on land, used to send remote expert data to the marine control subsystem; a marine control subsystem set up on the marine drilling platform, used to receive real-time status data sent by the data acquisition subsystem and remote expert data sent by the land remote control subsystem, and generate drilling operation control commands based on the status data and remote expert data to achieve parameter adjustment and equipment control during marine precision pressure-controlled drilling. The application of this patent helps to reduce the difficulty of data acquisition and the complexity of technicians' work during marine precision pressure-controlled drilling, realize the effective use of multiple parameters, and improve the accuracy of control instructions and operating efficiency.

[0004] However, the intelligent control system has the following defects: 1. The information exchange capability between the drilling platform and the fine pressure controlled drilling control center is limited, and communication is mostly carried out through traditional manual telephones or walkie-talkies; 2. The drilling wellhead and the fine pressure controlled drilling control center cannot communicate, especially the working status of the rotary blowout preventer of the fine pressure controlled drilling device lacks monitoring means. When the equipment fails to output line or mud leaks during the process of drilling, the complex fault signal cannot be transmitted to the remote control center; 3. The operating status of some devices of the pressure monitoring and automatic control system and the switch status of manual valves cannot be transmitted to the fine pressure controlled drilling control center in real time, and manual inspections are required, which is time-consuming and labor-intensive, and safety cannot be guaranteed; 4. When gas intrusion occurs, the bubbles in the circulation pipeline will cause the flow meter to distort, resulting in the flow through the flow meter to control the wellbore pressure inaccurately.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] In order to solve the technical problems existing in the prior art, the present invention provides a marine fine pressure controlled drilling inspection device and inspection method. The present invention realizes status monitoring of different processes such as the drilling platform, drilling wellhead, gas invasion status, pressure monitoring and automatic control system, and can exchange information with the fine pressure controlled drilling control center to ensure full monitoring of the equipment operation process, ensure the safety of the fine pressure controlled drilling operation process, and save labor.

[0007] The present invention includes the following technical solutions:

[0008] The first aspect of the present invention provides a marine precision pressure-controlled drilling inspection device, comprising:

[0009] Wellhead monitoring device, used to monitor the locking information of the clamp of the annular blowout preventer and send the clamp locking information to the remote control center;

[0010] The drilling floor monitoring device is used to monitor the drilling tool coupling information and send the drilling tool coupling information to the remote control center;

[0011] Gas intrusion monitoring device, used to monitor gas intrusion information in the well pipe and send the gas intrusion information to the remote control center;

[0012] Pressure monitoring and automatic control system status monitoring device, used to monitor the valve information of the wellhead device and send the valve information to the remote control center;

[0013] The remote control center is used to receive information sent by the wellhead monitoring device, the drilling platform monitoring device, the gas intrusion monitoring device and the pressure monitoring and automatic control system status monitoring device.

[0014] Further, the wellhead monitoring device includes a wellhead monitoring camera;

[0015] The wellhead monitoring camera is fixed at the wellhead and connected to the remote control center;

[0016] The annular blowout preventer comprises a lower clamp monitoring area, an upper clamp monitoring area and a sealing connection position monitoring area;

[0017] The wellhead monitoring camera monitors the clamp locking information of the lower clamp monitoring area, the upper clamp monitoring area and the sealing connection position monitoring area, and transmits the clamp locking information signal to the remote control center.

[0018] Furthermore, the drilling platform monitoring device includes a fixed drill tool coupling identification and monitoring device; the fixed drill tool coupling identification and monitoring device is fixedly arranged at the wellhead, the fixed drill tool coupling identification and monitoring device is connected to the remote control center, the fixed drill tool coupling identification and monitoring device monitors the drill tool coupling, and sends the identified drill tool coupling information to the remote control center.

[0019] Furthermore, the drilling platform monitoring device also includes a first sliding sleeve mobile monitoring device and a first fixed guide rail, the first fixed guide rail is fixedly installed at the wellhead, the first sliding sleeve mobile monitoring device is arranged on the first fixed guide rail, the first sliding sleeve mobile monitoring device is connected to the remote control center, the first sliding sleeve mobile monitoring device slides to monitor the operating condition of the wellhead platform, and sends the operating condition information to the remote control center.

[0020] Furthermore, the gas intrusion monitoring device includes an ultrasonic Doppler transmitting transducer and an acoustic noise reduction device; the probe of the ultrasonic Doppler transmitting transducer is arranged on the wall of the well pipe, and the ultrasonic Doppler transmitting transducer is connected to the remote control center; the acoustic noise reduction device is arranged around the ultrasonic Doppler transmitting transducer.

[0021] Further, the pressure monitoring and automatic control system state monitoring device comprises a second sleeve movable monitoring device and a second fixed guide rail;

[0022] The second fixed guide rail is arranged around the outside of the wellhead device, and the second sliding sleeve mobile monitoring device is installed on the second fixed guide rail. The second sliding sleeve mobile monitoring device is connected to the remote control center. The second sliding sleeve mobile monitoring device moves along the second fixed guide rail to monitor the valve information of the wellhead device and sends the valve information to the remote control center.

[0023] Furthermore, the remote control center includes a monitoring and control client, a big data computing client, a server and a database.

[0024] Furthermore, the monitoring and control client includes input and output parameter programs, a C#-based PLC communication program, a UI-based host computer monitoring interface, a sequential logic program, an alarm and safety protection program, a PLC system hardware diagnostic program, and a database storage program for local real-time data; the big data computing client includes a multi-source data input module, an intelligent computing module based on big data, and a data output module; the intelligent computing module based on big data is internally provided with an ocean fine pressure controlled drilling analysis and optimization model.

[0025] Furthermore, the optimization model includes: intelligent identification and data mining model of working conditions, ultrasonic propagation characteristics model of multiphase fluid, acoustic signal extraction and phase separation model in high noise environment, real-time calculation and real-time cross-validation model of wellbore pressure, intelligent calculation model of overflow and loss accumulation, heavy slurry design and real-time injection replacement model, mud parameter calculation model based on least squares regression algorithm, fluctuation pressure calculation model based on particle swarm algorithm, K-Means clustering algorithm, support vector machine algorithm, decision tree algorithm or one or more thereof.

[0026] A second aspect of the present invention provides a marine precision pressure-controlled drilling inspection method, comprising the inspection device described above, the inspection method comprising:

[0027] The wellhead monitoring device, the drilling platform monitoring device, the gas intrusion monitoring device and the pressure monitoring and automatic control system status monitoring device perform query monitoring, and send the obtained image information to the remote control center; wherein the image information includes: clamp locking information, coupling information, gas intrusion information, valve information;

[0028] The remote control center receives the image information, and determines whether there is leakage according to the clamp locking information, calculates the drilling tool speed according to the coupling information, determines the flow meter error according to the gas intrusion information, and obtains the valve status according to the valve information.

[0029] By adopting the above technical solution, the present invention has the following advantages:

[0030] 1. The present invention realizes status monitoring of different processes such as the drilling floor, drilling wellhead, gas invasion status, pressure monitoring and automatic control system, and can exchange information with the fine pressure controlled drilling control center to ensure full monitoring of the equipment operation process, ensure the safety of the fine pressure controlled drilling operation process, and save labor.

[0031] 2. Based on the original marine controlled pressure drilling device, the present invention realizes the status monitoring of different processes such as the drilling platform, drilling wellhead, gas invasion status, pressure monitoring and automatic control system by inventing a wellhead monitoring device, a drilling platform monitoring device, a gas intrusion monitoring device, a pressure monitoring and automatic control system status monitoring device, and a remote control center. It can also exchange information with the fine pressure controlled drilling control center to ensure the full monitoring of the equipment operation process, ensure the safety of the fine pressure controlled drilling operation process, and save labor.

[0032] 3. The present invention realizes the monitoring of gas intrusion in the well pipe, and determines that the flow rate obtained by the flow meter in the well pipe has an error through gas intrusion monitoring; thus avoiding the problem of poor control accuracy caused by controlling the error flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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.

[0034] Figure 1 This is a schematic diagram of the structure of an offshore precision pressure-controlled drilling device according to an embodiment of the present invention;

[0035] Figure 2 It is a structural schematic diagram of a wellhead monitoring device in an embodiment of the present invention;

[0036] Figure 3 It is a structural schematic diagram of a drilling platform monitoring device in an embodiment of the present invention;

[0037] Figure 4 It is a schematic diagram of the structure of the gas intrusion monitoring device in an embodiment of the present invention;

[0038] Figure 5 It is a structural schematic diagram of a pressure monitoring and automatic control system state monitoring device in an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of a remote control center in an embodiment of the present invention;

[0040] In the figure: 100-wellhead monitoring device, 101-wellhead monitoring camera, 200-drilling platform monitoring device, 201-fixed drilling tool coupling identification monitoring device, 202-first sliding sleeve mobile monitoring device, 203-first fixed guide rail, 300-gas intrusion monitoring device, 301-ultrasonic Doppler transmitting transducer, 302-sound wave noise reduction device, 400-pressure monitoring and automatic control system state monitoring device, 401-second sliding sleeve mobile monitoring device, 402-second fixed guide rail, 500-remote control center, 600-annular blowout preventer, 601-lower clamp monitoring area, 602-upper clamp monitoring area, 603-sealed connection position monitoring area, 700-coupling, 800-wellhead device. DETAILED DESCRIPTION

[0041] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0042] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of multiple components or the interaction relationship of multiple components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] 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.

[0045] This embodiment provides a marine precision pressure controlled drilling inspection device, such as Figure 1-Figure 6 As shown, including:

[0046] The wellhead monitoring device 100 is used to monitor the locking information of the clamp of the annular blowout preventer 600 and send the clamp locking information to the remote control center 500;

[0047] The drilling floor monitoring device 200 is used to monitor the information of the drilling tool coupling 700 and send the information of the drilling tool coupling 700 to the remote control center 500;

[0048] The gas intrusion monitoring device 300 is used to monitor the gas intrusion information in the well pipe and send the gas intrusion information to the remote control center 500;

[0049] The pressure monitoring and automatic control system state monitoring device 400 is used to monitor the valve information of the wellhead device 800 and send the valve information to the remote control center 500;

[0050] The remote control center 500 is used to receive information sent by the wellhead monitoring device 100, the drilling floor monitoring device 200, the gas intrusion monitoring device 300 and the pressure monitoring and automatic control system state monitoring device 400.

[0051] Furthermore, if Figure 2 As shown, the wellhead monitoring device 100 includes a wellhead monitoring camera 101;

[0052] The wellhead monitoring camera 101 is fixed on the crossbeam of the drilling rig steel structure around the wellhead and connected to the remote control center 500;

[0053] The annular blowout preventer 600 includes a lower clamp monitoring area 601, an upper clamp monitoring area 602 and a sealing connection position monitoring area 603;

[0054] The wellhead monitoring camera 101 monitors the locking information of the clamps in the lower clamp monitoring area 601 , the upper clamp monitoring area 602 and the sealing connection position monitoring area 603 , and transmits the locking information signal of the clamps to the remote control center 500 .

[0055] Furthermore, if Figure 3 As shown, the drilling platform monitoring device 200 includes a fixed drill tool coupling identification monitoring device 201; the fixed drill tool coupling identification monitoring device 201 is fixedly arranged at the wellhead, the fixed drill tool coupling identification monitoring device 201 is connected to the remote control center 500, the fixed drill tool coupling identification monitoring device 201 identifies and monitors the drill tool coupling 700, and sends the identified drill tool coupling 700 information to the remote control center 500.

[0056] Furthermore, if Figure 3 As shown, the drilling platform monitoring device 200 also includes a first sliding sleeve mobile monitoring device 202 and a first fixed guide rail 203. The first fixed guide rail 203 is fixedly installed at the wellhead. The first sliding sleeve mobile monitoring device 202 is arranged on the first fixed guide rail 203. The first sliding sleeve mobile monitoring device 202 is connected to the remote control center 500. The first sliding sleeve mobile monitoring device 202 slides to monitor the operating condition of the wellhead platform and sends the operating condition information to the remote control center 500.

[0057] Furthermore, if Figure 4 As shown, the gas intrusion monitoring device 300 includes an ultrasonic Doppler transmitting transducer 301 and an acoustic noise reduction device 302; the probe of the ultrasonic Doppler transmitting transducer 301 is arranged on the wall of the well pipe, and the ultrasonic Doppler transmitting transducer 301 is connected to the remote control center 500; the acoustic noise reduction device 302 is arranged around the ultrasonic Doppler transmitting transducer 301.

[0058] Furthermore, if Figure 5 As shown, the pressure monitoring and automatic control system state monitoring device 400 includes a second sleeve movable monitoring device 401 and a second fixed guide rail 402;

[0059] The second fixed guide rail 402 is arranged around the outside of the wellhead device 800, and the second sliding sleeve mobile monitoring device 401 is installed on the second fixed guide rail 402. The second sliding sleeve mobile monitoring device 401 is connected to the remote control center 500. The second sliding sleeve mobile monitoring device 401 moves along the second fixed guide rail 402 to monitor the valve information of the wellhead device 800 and sends the valve information to the remote control center 500.

[0060] Furthermore, if Figure 6 As shown, the remote control center 500 includes a monitoring and control client, a big data computing client, a server, and a database;

[0061] The monitoring and control client includes input and output parameter programs, a C#-based PLC communication program, a UI-based host computer monitoring interface, a sequential logic program, an alarm and safety protection program, a PLC system hardware diagnostic program, and a database storage program for local real-time data; the big data computing client includes a multi-source data input module, an intelligent computing module based on big data, and a data output module; the intelligent computing module based on big data is internally provided with an ocean fine pressure controlled drilling analysis and optimization model.

[0062] Furthermore, the optimization model includes: intelligent identification and data mining model of working conditions, ultrasonic propagation characteristics model of multiphase fluid, acoustic signal extraction and phase separation model in high noise environment, real-time calculation and real-time cross-validation model of wellbore pressure, intelligent calculation model of overflow and loss accumulation, heavy slurry design and real-time injection replacement model, mud parameter calculation model based on least squares regression algorithm, fluctuation pressure calculation model based on particle swarm algorithm, K-Means clustering algorithm, support vector machine algorithm, decision tree algorithm or one or more thereof.

[0063] This embodiment also provides a marine precision controlled pressure drilling inspection method, including the inspection device described above, and the inspection method includes:

[0064] The wellhead monitoring device 100, the drilling floor monitoring device 200, the gas intrusion monitoring device 300 and the pressure monitoring and automatic control system status monitoring device 400 perform query monitoring and send the obtained image information to the remote control center 500; wherein the image information includes: clamp locking information, coupling 700 information, gas intrusion information, valve information;

[0065] The remote control center 500 receives the image information, and determines whether there is leakage according to the clamp locking information, calculates the drilling tool speed according to the coupling 700 information, determines the flow meter error according to the gas intrusion information, and obtains the valve status according to the valve information.

[0066] The present invention can provide the remote control center 500 with more and more accurate information through the inspection device, making the control of the remote control center 500 more accurate and improving the control efficiency. It should be noted that the specific control of the remote control center 500 can be a control method existing in the prior art, and the inspection device of the present invention only provides the remote control center 500 with reference information for control, so the specific control process of the remote control center 500 will not be described in detail.

[0067] 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 marine precision pressure-controlled drilling inspection device, It is characterized in that include: A wellhead monitoring device (100) is used to monitor the locking information of the clamp of the annular blowout preventer (600) and send the clamp locking information to a remote control center (500); A drilling platform monitoring device (200), used for monitoring information of a drilling tool coupling (700) and sending the information of the drilling tool coupling (700) to a remote control center (500); A gas intrusion monitoring device (300) is used to monitor gas intrusion information in the well pipe and send the gas intrusion information to a remote control center (500); A pressure monitoring and automatic control system state monitoring device (400) is used to monitor valve information of a wellhead device (800) and send the valve information to a remote control center (500); The remote control center (500) is used to receive information sent by the wellhead monitoring device (100), the drilling platform monitoring device (200), the gas intrusion monitoring device (300) and the pressure monitoring and automatic control system state monitoring device (400).

2. A marine precision pressure-controlled drilling inspection device as claimed in claim 1, It is characterized in that The wellhead monitoring device (100) comprises a wellhead monitoring camera (101); The wellhead monitoring camera (101) is fixed at the wellhead and connected to the remote control center (500); The annular blowout preventer (600) comprises a lower clamp monitoring area (601), an upper clamp monitoring area (602) and a sealing connection position monitoring area (603); The wellhead monitoring camera (101) monitors the clamp locking information of the lower clamp monitoring area (601), the upper clamp monitoring area (602) and the sealing connection position monitoring area (603), and transmits the clamp locking information signal to the remote control center (500).

3. A marine precision pressure-controlled drilling inspection device as claimed in claim 1, It is characterized in that The drilling platform monitoring device (200) comprises a fixed drilling tool coupling identification and monitoring device (201); the fixed drilling tool coupling identification and monitoring device (201) is fixedly arranged at a wellhead, the fixed drilling tool coupling identification and monitoring device (201) is connected to the remote control center (500), the fixed drilling tool coupling identification and monitoring device (201) identifies and monitors the drilling tool coupling (700), and sends the identified drilling tool coupling (700) information to the remote control center (500).

4. A marine precision pressure-controlled drilling inspection device as claimed in claim 3, It is characterized in that The drilling platform monitoring device (200) also includes a first sliding sleeve mobile monitoring device (202) and a first fixed guide rail (203), wherein the first fixed guide rail (203) is fixedly installed at the wellhead, the first sliding sleeve mobile monitoring device (202) is arranged on the first fixed guide rail (203), the first sliding sleeve mobile monitoring device (202) is connected to the remote control center (500), and the first sliding sleeve mobile monitoring device (202) slides to monitor the operating condition of the wellhead platform and sends the operating condition information to the remote control center (500).

5. A marine precision pressure-controlled drilling inspection device as claimed in claim 1, It is characterized in that The gas intrusion monitoring device (300) comprises an ultrasonic Doppler transmitting transducer (301) and a sound wave noise reduction device (302); the probe of the ultrasonic Doppler transmitting transducer (301) is arranged on the wall of the well pipe, and the ultrasonic Doppler transmitting transducer (301) is connected to the remote control center (500); the sound wave noise reduction device (302) is arranged around the ultrasonic Doppler transmitting transducer (301).

6. A marine precision pressure-controlled drilling inspection device as claimed in claim 1, It is characterized in that The pressure monitoring and automatic control system state monitoring device (400) comprises a second sliding sleeve movable monitoring device (401) and a second fixed guide rail (402); The second fixed guide rail (402) is arranged around the wellhead device (800), and the second sliding sleeve mobile monitoring device (401) is installed on the second fixed guide rail (402). The second sliding sleeve mobile monitoring device (401) is connected to the remote control center (500). The second sliding sleeve mobile monitoring device (401) moves along the second fixed guide rail (402) to monitor the valve information of the wellhead device (800) and sends the valve information to the remote control center (500).

7. A marine precision pressure-controlled drilling inspection device as claimed in claim 1, It is characterized in that The remote control center (500) includes a monitoring and control client, a big data computing client, a server, and a database.

8. A marine precision pressure-controlled drilling inspection device as claimed in claim 7, It is characterized in that The monitoring and control client includes input and output parameter programs, a C#-based PLC communication program, a UI-based host computer monitoring interface, a sequential logic program, an alarm and safety protection program, a PLC system hardware diagnostic program, and a database storage program for local real-time data; the big data computing client includes a multi-source data input module, an intelligent computing module based on big data, and a data output module; the intelligent computing module based on big data is internally provided with an ocean fine pressure controlled drilling analysis and optimization model.

9. A marine precision pressure-controlled drilling inspection device as claimed in claim 8, It is characterized in that The optimization model includes: intelligent identification and data mining model of working conditions, ultrasonic propagation characteristics model of multiphase fluid, acoustic signal extraction and phase separation model in high noise environment, real-time calculation and real-time cross-validation model of wellbore pressure, intelligent calculation model of overflow and loss accumulation, heavy slurry design and real-time injection replacement model, mud parameter calculation model based on least squares regression algorithm, fluctuation pressure calculation model based on particle swarm algorithm, K-Means clustering algorithm, support vector machine algorithm, decision tree algorithm or one or more thereof.

10. A marine precision pressure-controlled drilling inspection method, It is characterized in that The inspection device according to any one of claims 1 to 9, wherein the inspection method comprises: The wellhead monitoring device (100), the drilling platform monitoring device (200), the gas intrusion monitoring device (300) and the pressure monitoring and automatic control system status monitoring device (400) perform query monitoring, and send the obtained image information to the remote control center (500); wherein the image information includes: clamp locking information, coupling (700) information, gas intrusion information, and valve information; The remote control center (500) receives the image information, and determines whether there is leakage according to the clamp locking information, calculates the drilling tool speed according to the coupling (700) information, determines the flow meter error according to the gas intrusion information, and obtains the valve state according to the valve information.

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