CN115822550A - Intelligent control system for ocean fine pressure control drilling - Google Patents
Intelligent control system for ocean fine pressure control drilling Download PDFInfo
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Abstract
The invention provides an intelligent control system for ocean fine pressure control drilling, which comprises: the data acquisition subsystem is arranged on the marine drilling platform and is used for acquiring state data in the marine fine pressure control drilling process in real time; the land remote control subsystem is arranged on land and used for sending the remote expert data to the ocean control subsystem; and the marine control subsystem is arranged on the marine drilling platform and used for receiving the state data sent by the data acquisition subsystem and the remote expert data sent by the land remote control subsystem in real time and generating a drilling operation control command according to the state data and the remote expert data so as to realize parameter adjustment and equipment control in the marine fine pressure control drilling process. The application of the method and the device is helpful for reducing the data acquisition difficulty in the ocean fine pressure control drilling process and the working complexity of technicians, realizing effective utilization of various parameters and improving the accuracy and the operating efficiency of control instructions.
Description
Technical Field
The invention relates to the field of petroleum and natural gas drilling engineering, in particular to an intelligent control system for ocean fine pressure control drilling.
Background
With the continuous development and progress of informatization, digitization, automation and intelligent technology, the drilling equipment is continuously developed towards intelligent, less-humanized or unmanned operation. Remote control operation is carried out on a drilling platform or a drilling rig is directly placed in the seabed without being influenced by severe environment factors such as wind, waves, flow and the like by virtue of workstations in land or other safe areas through an intelligent technology, and the intelligent drilling rig becomes a new mode and a new idea of future drilling.
The closed-loop control of the wellbore pressure in the marine drilling process is the basis for realizing the digitization and the intellectualization of the marine drilling. In order to realize the intellectualization of the offshore platform drilling, the shaft pressure control device is required to be used for realizing the automatic control of different drilling operation working conditions such as drilling, column connection, tripping and the like and the stabilization of bottom hole pressure. Therefore, the development of the ocean full-working-condition intelligent pressure control drilling system and equipment is a necessary condition for realizing digitization, informatization and intelligent transformation of the ocean drilling technology and equipment.
The existing marine pressure-controlled drilling equipment has completed automatic control, but the existing technology has the following defects: 1. the informatization degree of data utilization and sharing is not high, and the data utilization and sharing are not unified; 2. the underground complex intelligent identification, analysis and control can not be realized based on artificial intelligence and big data analysis technology; 3. the ocean pressure-controlled well drilling belongs to novel technical equipment, and has high requirements on professional abilities of professional technicians, so that professional technical posts are relatively lacked, and ocean fine pressure-controlled well drilling operation of multiple wells cannot be simultaneously carried out; 4. the field data of the ocean platform is not fully utilized, so that the bottom hole parameters, the ground pressure flow parameters, the logging parameters and the like cannot be effectively utilized to make a collaborative decision; 5. the system does not have the modes of real-time monitoring, big data analysis and expert remote support, and cannot support the multi-well secondary pressure control operation in real time.
Disclosure of Invention
In order to solve the problem that exists among the prior art, the application provides a well drilling intelligence control system is pressed in meticulous accuse of ocean, includes: the system comprises a data acquisition subsystem, an ocean control subsystem and a land remote control subsystem;
the data acquisition subsystem is arranged on the ocean drilling platform and used for acquiring state data in the ocean fine pressure control drilling process in real time;
the land remote control subsystem is arranged on land and used for sending remote expert data to the ocean control subsystem;
the marine control subsystem is arranged on a marine drilling platform and used for receiving the state data sent by the data acquisition subsystem and the remote expert data sent by the land remote control subsystem in real time and generating a drilling operation control command according to the state data and the remote expert data so as to realize parameter adjustment and equipment control in the marine fine pressure control drilling process.
In one embodiment, the data acquisition subsystem comprises:
the underground data source module is arranged in the monitored well and used for collecting underground data in the ocean fine pressure control drilling process in real time;
the wellhead shunt control module is arranged between the drill string and a wellhead, and is used for sealing an annular space between the drill string and a wellhead device, and monitoring wellhead casing pressure and running state data of the wellhead device in the marine fine pressure control drilling process in real time;
the ground fluid monitoring and data source module is used for monitoring ground fluid data in the marine fine pressure control drilling process in real time;
and the drill string monitoring module is used for monitoring drill string vibration data and operating state data of a drill string system in the marine fine pressure control drilling process in real time.
In one embodiment, the downhole data source module comprises a downhole engineering while drilling parameter measuring instrument, a downhole data receiving, processing and controlling short section and a leak stopping short section while drilling.
In one embodiment, the marine control subsystem comprises:
the intelligent fusion control platform for the marine pressure-controlled drilling is used for receiving all state data in the marine fine pressure-controlled drilling process and remote expert data sent by the land remote control subsystem in real time and generating a drilling operation control command according to all the state data and the remote expert data; wherein the status data comprises the downhole data, the surface fluid data, the wellhead casing pressure, the operating status data of the wellhead device, the drill string vibration data, the operating status data of the drill string system, and the remote expert data sent by the land remote control subsystem, and drilling operation control commands are generated according to the status data and the remote expert data;
and the electric servo pressure adjusting module is used for receiving the state data, the remote expert data and the drilling operation control command sent by the intelligent ocean pressure control drilling control platform and controlling the wellhead pressure and the outlet flow in the ocean fine pressure control drilling process according to the drilling operation control command.
In one embodiment, the electric servo pressure regulation module comprises:
the pressure monitoring and automatic control unit is used for controlling wellhead pressure in the marine fine pressure-controlled drilling process according to a pressure control instruction in the drilling operation control instruction and feeding back inlet pressure data to the marine pressure-controlled drilling intelligent fusion control platform;
the whole-process flow real-time correction and detection unit is used for controlling the outlet flow in the marine fine pressure-controlled drilling process according to the flow control instruction in the drilling operation control instruction and feeding back outlet flow data to the marine pressure-controlled drilling intelligent fusion control platform;
and the fine pressure control drilling industrial field centralized control unit is used for receiving and executing the drilling operation control command sent by the ocean pressure control drilling intelligent fusion control platform.
In one embodiment, the pressure monitoring and automatic control unit comprises one or more of an electrically driven automatic throttle valve, an electrically driven flat valve, a manual flat valve, a check valve, a manifold, a four-way valve, a mass flow meter, and an anti-clogging filter.
In one embodiment, the whole process flow real-time correction and detection unit comprises a mass flow meter, an electromagnetic flow meter, a manifold and a manual valve.
In one embodiment, the centralized control unit of the fine pressure control drilling industrial field comprises a controller, an upper control machine and an intelligent sensing instrument.
In one embodiment, the intelligent fusion control platform for marine pressure-controlled drilling comprises:
the digital marine pressure-controlled drilling well site engineer core workstation is used for receiving and executing a drilling operation control command input by a well site engineer in the marine fine pressure-controlled drilling process;
the marine drilling platform data center and the cloud platform server are used for receiving a drilling operation control command sent by the land remote control subsystem in the marine fine pressure control drilling process and generating a drilling operation control command according to each state data and the remote expert data;
the marine drilling platform data center and the cloud platform workstation are used for receiving and executing a drilling operation control command input by a data center engineer in the marine fine pressure control drilling process.
In one embodiment, the digital marine pressure control drilling well site engineer core workstation, the marine drilling platform data center and cloud platform workstation and the land remote control subsystem are provided with preset control priority.
The intelligent control system for ocean fine pressure control drilling realizes a drilling operation mode of 'real-time monitoring + big data analysis + expert remote support' by synchronously arranging the data acquisition subsystem, the ocean control subsystem and the land remote control subsystem, reduces the data acquisition difficulty in the ocean fine pressure control drilling process and the working complexity of technicians, realizes effective utilization of various parameters, and improves the accuracy of control instructions. Simultaneously, the ocean fine pressure control drilling intelligent control system has the capacity of supporting multi-well secondary pressure control operation in real time, and greatly improves the operation efficiency.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1A is a schematic diagram of an intelligent control system for marine fine pressure control drilling provided by the present application.
Fig. 1B is a connection diagram of the intelligent control system for marine fine pressure control drilling provided by the present application.
Fig. 2 is a schematic diagram of a data acquisition subsystem provided herein.
FIG. 3 is another connection diagram of the intelligent control system for marine fine managed pressure drilling provided by the present application.
Fig. 4 is a schematic diagram of the intelligent fusion control platform for marine pressure-controlled drilling provided by the present application.
FIG. 5 is a schematic diagram of a core workstation of an engineer in a digital marine pressure control drilling well site provided by the present application.
Fig. 6A is a schematic diagram of an electrical servo pressure regulating module and its connections provided in the present application.
Fig. 6B is an enlarged schematic view of the pressure monitoring and automatic control unit provided in the present application.
Fig. 6C is an enlarged schematic view of the whole process flow real-time correction and detection unit provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to solve the problems in the prior art, the present application provides an intelligent control system for marine fine pressure control drilling, which, as shown in fig. 1A and 1B, includes a data acquisition subsystem 100, a marine control subsystem 200, and a land remote control subsystem 300.
The data acquisition subsystem 100 is disposed on the marine drilling platform, specifically, at a preset position of the digital marine pressure-controlled drilling site, and the left part of fig. 1A is a simple schematic diagram of the digital marine pressure-controlled drilling site. The data acquisition subsystem 100 is used for acquiring state data in the marine fine pressure control drilling process in real time. The data acquisition subsystem 100 comprises various types of data acquisition modules, each data acquisition module acquires state data such as parameters and monitored parameters of various types of operation equipment in real time in the marine fine pressure control drilling process, transmits the state data to the marine control subsystem 200 in real time, and then the marine control subsystem 200 forwards the state data to the land remote control subsystem 300. Because the data acquisition modules in the data acquisition subsystem are relatively decentralized, what is indicated in FIG. 1A may be only a portion of the data acquisition subsystem 100.
The land remote control subsystem 300 is disposed in a land remote control center, and is configured to send remote expert data to the marine control subsystem 200, and perform remote wireless monitoring on the marine drilling platform equipment. The right side of fig. 1A is a simplified schematic diagram of a land remote control subsystem. Specifically, after the land remote control subsystem 300 receives the status data forwarded by the marine control subsystem 200 in real time, the land expert can know the operation condition in the marine fine pressure control drilling process in real time, inputs the remote expert data through the land remote control subsystem 300, and sends the remote expert data to the marine control subsystem 200 through the land remote control subsystem 300. Where the remote expert data includes, but is not limited to, drilling operation control commands remotely input by the expert. It should be noted that the marine control subsystem 200 forwards the status data of the marine fine pressure control drilling process to the land remote control subsystem 300 in real time, but the expert at the land remote control subsystem 300 does not send out the remote expert data for each received status data. That is, the configuration of the land remote control subsystem 300 of the present application provides an alternative remote control for operation control during marine fine managed pressure drilling, and is not intended to represent that the present application can only use this control.
The marine control subsystem 200 is arranged on a marine drilling platform, specifically at a preset position of a digital marine pressure-controlled drilling well site, and is configured to receive the state data sent by the data acquisition subsystem and the remote expert data sent by the land remote control subsystem in real time, and generate a drilling operation control command according to the state data and the remote expert data, so as to implement parameter adjustment and equipment control in a marine fine pressure-controlled drilling process. It can be seen that the marine control subsystem 200 also has job control functionality. When the data acquisition subsystem 100 sends the acquired state data to the marine control subsystem 200 in real time, the marine control subsystem 200 generates a corresponding drilling control instruction according to the state data, and applies the drilling control instruction to corresponding controlled equipment, so as to realize parameter adjustment and equipment control in the marine fine pressure control drilling process.
The remote expert data of the land remote control subsystem 300 is also sent to the marine control subsystem 200 and then processed by the marine control subsystem 200. For example, assume that after the data acquisition subsystem 100 sends status data to the marine control subsystem 200 in real time, the marine control subsystem 200 sends the status data to the remote terrestrial control subsystem 300 in real time. When the remote expert data returned by the land remote control subsystem 300 does not have a drilling control command, the marine control subsystem 200 generates a drilling control command according to the state data and sends the drilling control command to the corresponding controlled equipment. When the remote expert data returned by the land remote control subsystem 300 contains a drilling control command, the marine control subsystem 200 needs to determine the control priority of the two parties, and if the control priority of the marine control subsystem 200 is higher than that of the land remote control subsystem 300, the marine control subsystem 200 issues the drilling control command generated by the marine control subsystem 200 to corresponding controlled equipment; if the control priority of the land remote control subsystem 300 is higher than that of the marine control subsystem 200, the marine control subsystem 200 issues the drilling control command sent by the land remote control subsystem 300 to the corresponding controlled equipment.
In the above embodiments, the data acquisition subsystem 100 and the land remote control subsystem 300 both use communication technology to realize data interaction with the marine control subsystem 200. The real-time automatic control of the controlled equipment of the digital marine pressure-controlled drilling well site can be realized through the marine control subsystem 200 and the land control subsystem 300, and the multi-stage control of the marine fine pressure-controlled drilling process can be realized through setting the priority of the controlled equipment. Compare in traditional "individual soldier's mode of fighting", the application of the meticulous accuse pressure well drilling intelligence control system in ocean of this application can make the drilling operation obtain remote expert's decision-making support, and multiple drilling operation control mode still can be set up to the meticulous accuse pressure well drilling operation in ocean of different well times of controlling respectively.
In one embodiment, as shown in FIG. 2, the data acquisition subsystem 100 includes at least a downhole data source module 101, an uphole shunt control module 102, a surface fluid monitoring and data source module 103, and a drill string monitoring module 104. Each module contains a plurality of sensors. In practical applications, the data acquisition subsystem 100 may further include more or less data acquisition modules, which is not limited in this application.
The downhole data source module 101 is disposed in a monitored well, and is configured to collect downhole data in a marine fine pressure control drilling process in real time, and send the downhole data collected in real time to the marine control subsystem 200. The underground data module comprises but is not limited to an underground while-drilling engineering parameter measuring instrument, an underground data receiving, processing and controlling short section and a while-drilling leaking stoppage short section, wherein the underground while-drilling engineering parameter measuring instrument can realize the measurement of one or more of engineering parameters such as compressive strength of 160MPa, underground drilling pressure under the condition of resisting temperature of 175 ℃, torque, bending moment, rotating speed, drilling tool internal pressure, external annular pressure, triaxial vibration, temperature, stick-slip coefficient, well control risk judgment factors and the like.
The wellhead shunt control module 102 is arranged between a drill string and a wellhead and used for sealing an annular space between the drill string and a wellhead device, realizing the closed diversion of drilling circulating fluid at the wellhead and monitoring wellhead casing pressure and running state data of the wellhead device in the ocean fine pressure control drilling process in real time. After acquiring wellhead casing pressure and wellhead device operation state data, the wellhead shunt control module 102 sends the data to the ocean control subsystem 200 in real time.
And the surface fluid monitoring and data source module 103 is used for monitoring the surface fluid data in the ocean fine pressure control drilling process in real time and sending the surface fluid data to the ocean control subsystem 200 in real time. In practical applications, the accuracy of the overflow drain identification of the surface fluid monitoring and data source module 103 is less than 100L.
The drill string monitoring module 104 is configured to monitor drill string vibration data and operation state data of a drill string system in the marine fine pressure control drilling process in real time, and send the drill string vibration data and the operation state data of the drill string system to the marine control subsystem 200 in real time.
In one embodiment, as shown in fig. 2 and 3, the marine control subsystem 200 includes:
the intelligent fusion control platform 201 for the marine pressure-controlled drilling is used for receiving each state data in the marine fine pressure-controlled drilling process and the remote expert data sent by the land remote control subsystem in real time, and generating a drilling operation control command according to each state data and the remote expert data; the state data comprises the downhole data, the surface fluid data, the wellhead casing pressure, the operation state data of the wellhead device, the drill string vibration data, the operation state data of the drill string system and remote expert data sent by the land remote control subsystem, and drilling operation control commands are generated according to the state data and the remote expert data.
And the electric servo pressure adjusting module 202 is used for receiving the state data, the remote expert data and the drilling operation control command sent by the intelligent integrated control platform for marine pressure-controlled drilling, and controlling the wellhead pressure and the outlet flow in the marine fine pressure-controlled drilling process according to the drilling operation control command.
From the above, the intelligent integrated control platform 201 for ocean pressure-controlled drilling is mainly used to generate a drilling operation control command, and the electric servo pressure regulation module 202 is mainly used to execute the drilling operation control command sent by the intelligent integrated control platform 201 for ocean pressure-controlled drilling.
Specifically, as shown in fig. 4, the intelligent integrated control platform 201 for pressure-controlled marine drilling includes three major parts, which are a core workstation 2011 for digital pressure-controlled marine drilling site engineers, a data center and cloud platform server 2012 for the pressure-controlled marine drilling platform, and a data center and cloud platform workstation 2013 for the pressure-controlled marine drilling platform.
The digital marine pressure-controlled drilling well site engineer core workstation 2011 is used for receiving and executing drilling operation control instructions input by a well site engineer in the marine fine pressure-controlled drilling process, so that the remote control of a digital marine pressure-controlled drilling well site is realized.
As shown in fig. 5, a monitoring and control client 211, a big data computing client 212, a server 213, a database 214, a network interface 215, a first server 216, and an equipment emergency console 217 may be installed in a core workstation 2011 of a digital marine pressure-controlled drilling well site engineer, wherein the monitoring and control client 211, the big data computing client 212, the server 213, and the database 214 perform data interaction through a local area network. The state data collected by the sensors of the surface fluid monitoring and data source module 103, the wellhead shunt control module 102 and the downhole data source module 101 in the data collection subsystem and the state data sent by other external access devices are all transmitted to the first server 216. The monitoring and controlling client 211 may include, for example, an input/output parameter program, a PLC communication program based on C language, an upper computer monitoring interface based on UI, a sequential logic program, an alarm and safety protection program, a PLC system hardware diagnosis program, and a database storage program of local real-time data; the big data calculation client 212 may include, for example, a multi-source data input module, a big data-based intelligent calculation module, and a data output module, where an ocean fine pressure control drilling analysis optimization model is disposed inside the big data-based intelligent calculation module, and the model may include, for example: the method comprises one or more of a real-time calculation and real-time cross validation model of shaft pressure, an intelligent calculation model of overflow and leakage accumulation, a heavy slurry design and real-time replacement model, a mud parameter calculation model based on a least square regression algorithm, a fluctuation pressure calculation model based on a particle swarm algorithm, a K-Means clustering algorithm, a support vector machine algorithm and a decision tree algorithm. The above mentioned models and algorithms can directly use the prior art, and the functions of the related models can also be obtained from the names of the models, which are not described herein again. The focus of the present application is not how to train the model, so it is not described much.
The offshore drilling platform data center and cloud platform server 2012 is used for receiving the drilling operation control command sent by the land remote control subsystem 300 in the process of offshore fine pressure-controlled drilling, and generating a drilling operation control command according to the state data and the remote expert data, thereby realizing the remote control of the digitized offshore pressure-controlled drilling well site.
The ocean drilling platform data center and cloud platform workstation 2013 is used for receiving and executing drilling operation control instructions input by a data center engineer in the ocean fine pressure control drilling process, and further remote control of a digital ocean pressure control drilling well site is achieved.
The structure of the intelligent integrated control platform 201 for ocean pressure-controlled drilling can be embodied, and the intelligent control system for ocean fine pressure-controlled drilling provides various drilling operation control modes, including a digital core workstation 2011 for well site engineers to input drilling operation control instructions, an ocean drilling platform data center and cloud platform workstation 2013 for data center engineers to input drilling operation control instructions, an ocean drilling platform data center and cloud platform server 2012 for generating drilling operation control instructions according to various state data sent by a data acquisition subsystem in real time and remote expert data sent by a land remote control subsystem in real time, and a land remote control subsystem 300 for experts to input drilling operation control instructions. Besides, the emergency control system further comprises an equipment emergency operation platform for realizing emergency control under emergency conditions, wherein the equipment emergency operation platform is arranged on a well site and needs manual operation and control of workers.
Due to the fact that multiple drilling operation control modes occur in the ocean fine pressure control drilling intelligent control system, in actual control, the priority of each control mode needs to be set, namely, the control right priority and the change rules of the control right priority are preset respectively for the digital ocean pressure control drilling well site engineer core workstation 2011, the ocean drilling platform data center and cloud platform workstation 2012, the land remote control subsystem 2013 and the equipment emergency operation console. For example, the default setup digital marine pressure control drilling well site engineer core workstation 2011 has a first priority, and the digital marine pressure control drilling well site engineer core workstation 2011 may assign the priority to one of the marine drilling platform data center and cloud platform workstation 2012, the land remote control subsystem 2013 and the equipment emergency console according to the actual drilling conditions in a priority order of control.
With regard to the electric servo pressure adjustment module 202, the specific structure thereof can be seen in fig. 6A. As shown in fig. 6A, the electrical servo pressure regulation module 202 includes a pressure monitoring and automatic control unit 2021, a full process flow real-time correction and detection unit 2022, and a fine control pressure drilling industrial site centralized control unit 2023. The electric servo pressure regulation module 2022 is connected with a well cementation pump, a control system, a four-phase separator, a vibrating screen and the like, wherein the four-phase separator is further connected with a metering tank, and the vibrating screen is further connected with a mud pit and a mud pump.
Specifically, the pressure monitoring and automatic control unit 2021 is configured to control wellhead pressure during the marine fine pressure-controlled drilling process according to a pressure control instruction in the drilling operation control instruction, and feed back inlet pressure data to the marine pressure-controlled drilling intelligent fusion control platform. The pressure monitoring and automatic control unit comprises one or more of an electrically-driven automatic throttling valve, an electric flat valve, a manual flat valve, a check valve, a manifold, a four-way valve, a mass flow meter and an anti-blocking filter. The pressure monitoring and automatic control unit at least comprises 2 throttling channels which are respectively used as a main throttling channel and a standby throttling channel. The main throttling channel and the standby throttling channel can be automatically switched, a bypass through channel is arranged, the drift diameter of the manifold is more than or equal to 4-1/16in, and the safety of the system is enhanced by the standby channel.
An enlarged schematic view of the pressure monitoring and automatic control unit 2021 is shown in fig. 6B, which includes a manual plate valve: MG-0, MG-1, MG-2, MG-3, MG-4, MG-5, MG-6, MG-7, MG-8, MG-9, MG-10, MG-11; electrically-driven automatic throttle valve: AC-1, AC-2; electric flat valve: LG-1, LG-2 and LG-3.
Automatic throttling and emergency well killing operation can be realized in ocean pressure control drilling operation, and dynamic control of bottom hole pressure is realized by controlling the opening of the throttling valve in real time. The system consists of 2 automatic throttling channels (the first channel comprises LG-2, AC-1 and MG-6, the second channel comprises LG-3, AC-2 and MG-7) and 1 through channel (comprises MG-8), 1 main throttling pipe is activated under normal operation, and the other channel is used as a spare. The inlet of the manifold is provided with three paths (the first path comprises MG-0 and MG-1, the second path comprises MG-3 and MG-4, the third path comprises MG-2 and LG-1) which can be respectively connected with the wellhead drilling four-way, the RCD and the well cementation pump, and the outlet is provided with two paths (the first path is MG-11, and the other path is MG-9 and MG-10).
Each electrically-driven automatic throttling valve is provided with three-position four-way reversing valves connected in parallel, local control, remote PC control and remote manual control of the control cabinet can be realized, and when a PC control system has a problem, the gate valves on the automatic kill-job manifold and the switches of the electrically-driven automatic throttling valves can be manually controlled through a panel of the control cabinet.
The whole-process flow real-time correction and detection unit 2022 is configured to control the outlet flow in the marine fine pressure-controlled drilling process according to the flow control instruction in the drilling operation control instruction, and feed back outlet flow data to the marine pressure-controlled drilling intelligent fusion control platform. The whole process flow real-time correction and detection unit comprises a mass flow meter, an electromagnetic flow meter, a manifold and manual flat valves (MG-12, MG-13 and MG-14). The size of a mass flow meter is, for example, 6 inches, and the size of an electromagnetic flow meter is, for example, 4 inches. An enlarged schematic diagram of the whole process flow real-time correction and detection unit 2022 is shown in fig. 6C.
The fine pressure control drilling industrial field centralized control unit 2023 is used for receiving and executing the drilling operation control command sent by the ocean pressure control drilling intelligent fusion control platform. The centralized control unit comprises an electric control cabinet and an electric control system, and comprises a controller, an upper control machine, an intelligent sensing instrument and other equipment.
The fine pressure-controlled drilling industrial field centralized control unit 2023 can receive and process the working instructions of the marine pressure-controlled drilling intelligent fusion control platform 201, and simultaneously send action instructions to corresponding controlled equipment, so as to realize automatic (local and remote) control of the controlled components.
The dynamic response time of the centralized control unit 2023 in the fine pressure control drilling industrial field is less than 1 second, for example, and the working pressure is 10.5Mpa, for example; the centralized control unit 2023 in the fine pressure control drilling industrial field can meet the requirements of the pressure monitoring and automatic control unit 2021 on the opening and closing operations of an electric flat valve and an automatic throttle valve, has remote and local operation functions, and can manually control the opening and closing of each gate valve and each throttle valve on a throttle manifold through a control panel if a computer control system has problems.
The intelligent control system for ocean fine pressure control drilling realizes a drilling operation mode of 'real-time monitoring + big data analysis + expert remote support' by synchronously arranging the data acquisition subsystem, the ocean control subsystem and the land remote control subsystem, reduces the data acquisition difficulty in the ocean fine pressure control drilling process and the working complexity of technicians, realizes effective utilization of various parameters, and improves the accuracy of control instructions. Simultaneously, the ocean fine pressure control drilling intelligent control system has the capacity of supporting multi-well secondary pressure control operation in real time, and greatly improves the operation efficiency. The application is in the combination of artificial intelligence and big data analysis technology, and is helpful for realizing underground complex intelligent identification, analysis and control.
As will be appreciated by one skilled in the art, embodiments of the present description may be provided as a method, system, or computer program product. Accordingly, embodiments of the present description may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present description may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein. All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, as for the system embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference may be made to the partial description of the method embodiment for relevant points. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the specification.
In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. The above description is only an example of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Various modifications and variations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification should be included in the scope of the claims of the embodiments of the present specification.
Claims (10)
1. An intelligent control system for marine fine pressure control drilling, comprising: the system comprises a data acquisition subsystem, an ocean control subsystem and a land remote control subsystem;
the data acquisition subsystem is arranged on the ocean drilling platform and used for acquiring state data in the ocean fine pressure control drilling process in real time;
the land remote control subsystem is arranged on land and used for sending remote expert data to the ocean control subsystem;
the marine control subsystem is arranged on a marine drilling platform and used for receiving the state data sent by the data acquisition subsystem and the remote expert data sent by the land remote control subsystem in real time and generating a drilling operation control command according to the state data and the remote expert data so as to realize parameter adjustment and equipment control in the marine fine pressure control drilling process.
2. The intelligent control system for marine fine managed pressure drilling of claim 1, wherein the data acquisition subsystem comprises:
the underground data source module is arranged in the monitored well and used for acquiring underground data in the marine fine pressure control drilling process in real time;
the wellhead shunt control module is arranged between the drill string and a wellhead and used for sealing an annular space between the drill string and a wellhead device and monitoring wellhead casing pressure and running state data of the wellhead device in the marine fine pressure control drilling process in real time;
the ground fluid monitoring and data source module is used for monitoring ground fluid data in the ocean fine pressure control drilling process in real time;
and the drill string monitoring module is used for monitoring drill string vibration data and operating state data of a drill string system in the marine fine pressure control drilling process in real time.
3. The intelligent control system for marine fine pressure control drilling according to claim 2, wherein the downhole data source module comprises a downhole engineering parameter measurement while drilling instrument, a downhole data receiving, processing and controlling sub and a leak stopping sub while drilling.
4. The intelligent control system for marine fine managed pressure drilling of claim 2, wherein said marine control subsystem comprises:
the intelligent fusion control platform for the marine pressure-controlled drilling is used for receiving all state data in the marine fine pressure-controlled drilling process and remote expert data sent by the land remote control subsystem in real time and generating a drilling operation control command according to all the state data and the remote expert data; wherein the status data comprises the downhole data, the surface fluid data, the wellhead casing pressure, the operating status data of the wellhead device, the drill string vibration data, the operating status data of the drill string system, and the remote expert data sent by the land remote control subsystem, and drilling operation control commands are generated according to the status data and the remote expert data;
and the electric servo pressure adjusting module is used for receiving the state data, the remote expert data and the drilling operation control command sent by the intelligent ocean pressure control drilling control platform and controlling the wellhead pressure and the outlet flow in the ocean fine pressure control drilling process according to the drilling operation control command.
5. The intelligent control system for marine fine pressure control drilling according to claim 4, wherein the electric servo pressure regulation module comprises:
the pressure monitoring and automatic control unit is used for controlling wellhead pressure in the marine fine pressure-controlled drilling process according to a pressure control instruction in the drilling operation control instruction and feeding back inlet pressure data to the marine pressure-controlled drilling intelligent fusion control platform;
the whole-process flow real-time correction and detection unit is used for controlling the outlet flow in the marine fine pressure-controlled drilling process according to the flow control instruction in the drilling operation control instruction and feeding back outlet flow data to the marine pressure-controlled drilling intelligent fusion control platform;
and the fine pressure control drilling industrial field centralized control unit is used for receiving and executing the drilling operation control command sent by the ocean pressure control drilling intelligent fusion control platform.
6. The intelligent control system for marine fine pressure control drilling as claimed in claim 5, wherein the pressure monitoring and automatic control unit comprises one or more of an electrically driven automatic throttle valve, an electrically driven flat valve, a manual flat valve, a check valve, a manifold, a four-way valve, a mass flow meter, and a block-resistant filter.
7. The intelligent control system for marine fine pressure control drilling according to claim 5, wherein the full process flow real-time correction and detection unit comprises a mass flow meter, an electromagnetic flow meter, a manifold and a manual valve.
8. The intelligent control system for marine fine pressure control drilling according to claim 5, wherein the industrial field centralized control unit for fine pressure control drilling comprises a controller, an upper control machine and an intelligent sensing instrument.
9. The intelligent control system for marine fine pressure controlled drilling according to claim 4, wherein the intelligent fusion control platform for marine pressure controlled drilling comprises:
the digital marine pressure-controlled drilling well site engineer core workstation is used for receiving and executing a drilling operation control command input by a well site engineer in the marine fine pressure-controlled drilling process;
the system comprises an ocean drilling platform data center and a cloud platform server, wherein the ocean drilling platform data center and the cloud platform server are used for receiving drilling operation control commands sent by a land remote control subsystem in the ocean fine pressure control drilling process and generating drilling operation control commands according to various state data and the remote expert data;
the marine drilling platform data center and the cloud platform workstation are used for receiving and executing a drilling operation control command input by a data center engineer in the marine fine pressure control drilling process.
10. The intelligent control system for marine fine pressure controlled drilling according to claim 9, wherein the digital marine pressure controlled drilling well site engineer core workstation, the marine drilling platform data center and cloud platform workstation and the land remote control subsystem are provided with preset control priority.
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| CN202210766562.1A CN115822550B (en) | 2022-07-01 | Intelligent control system for ocean fine pressure control well drilling |
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| CN202210766562.1A CN115822550B (en) | 2022-07-01 | Intelligent control system for ocean fine pressure control well drilling |
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