CN115410443A - Control system for blowout simulation training - Google Patents
Control system for blowout simulation training Download PDFInfo
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- CN115410443A CN115410443A CN202211342107.5A CN202211342107A CN115410443A CN 115410443 A CN115410443 A CN 115410443A CN 202211342107 A CN202211342107 A CN 202211342107A CN 115410443 A CN115410443 A CN 115410443A
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Abstract
The invention discloses a control system for blowout simulation training, which relates to the technical field of control systems, and comprises a data acquisition system, a gas injection valve group control system, a water injection pump group control system, a wireless transmission system, a remote control system, a safety early warning and emergency stop module, a liquid-gas mixer and an injection module; the system also comprises a simulated training field, wherein a first well, a second well and a third well are arranged in the simulated training field, injection modules are arranged in the wells, the liquid-gas mixer is communicated with the injection modules, and a reserved storage yard and a sedimentation water tank are arranged beside the simulated training field; the gas injection valve bank control system comprises an air compressor, a gas storage tank, a gas supply pipeline, a gas injection valve bank integrated system and a valve bank control system; the water injection pump set control system comprises a water pool, a liquid supply pipeline, a water injection pump set integrated system and a pump set control system; the air supply pipeline and the liquid supply pipeline are respectively communicated with the liquid-gas mixer. The invention is close to the field reality, simulates the out-of-control blowout of the field, and enables emergency personnel to carry out emergency training under the real out-of-control blowout scene.
Description
Technical Field
The invention relates to the technical field of control systems, in particular to a control system for blowout simulation training.
Background
Blowout is an accident which is very abstaining from oil or petroleum gas exploitation, and mud needs to be injected into a shaft to balance the pressure of underground strata during drilling. However, when the underground pressure is not tested accurately or the density of injected mud is too low or the formation pressure is suddenly increased during exploration, oil or gas in the formation flows into a well casing and is sprayed out of the ground without control, so that blowout is generated, and the blowout is accompanied by toxic gas, so that great harm is caused to the environment and people. The blowout simulation system is arranged in a simulated training field of a base, and is designed to meet the requirements of three training wells, is used for three-level well control rescue drilling, simulates a real blowout out-of-control scene and creates a field tense atmosphere.
For example, chinese patent, publication number is: the invention discloses a blowout emergency drilling simulation system and a simulation method, and the simulation system comprises a program-controlled injection system, a reservoir, a water supply pipeline, a water return pipeline, an emergency treatment monitoring system and an upper computer, wherein the program-controlled injection system comprises a spray head, a high-pressure delivery pipeline, a water pump and a frequency converter; the water storage tank supplies water through a water supply pipeline, and the water pump receives a control signal from an upper computer through a frequency converter; the emergency treatment monitoring system comprises sensing detection devices which are additionally arranged on various instruments and switches to be observed on a blowout site, and the sensing detection devices send collected readings of the instruments and switch conditions of the switches to an upper computer.
The blowout simulation system carries out blowout simulation through a combined mode of a blowout well and a gas injection well, a parasitic pipe is placed in the blowout well at a fixed depth, a gas storage well stores a certain amount of compressed gas, the blowout simulation condition is single, the depth of a blowout layer position is determined by the placement position of the parasitic pipe, once the situation that blowout at different depths can not be changed in the later period is determined, blowout at different depths can not be simulated, and the later-period maintenance difficulty is large; and the blowout duration is limited, because the blowout energy is provided by the gas storage well, the capacity and the pressure of the gas storage well directly determine the duration and the intensity of the blowout, once the energy of the gas storage well is exhausted, the replenishment needs a period of time, the blowout must be interrupted, and therefore the more real continuous blowout cannot be realized. Therefore, the invention provides a control system for blowout simulation training, which is used for solving the problems.
Disclosure of Invention
The invention aims to provide a control system for blowout simulation training, which aims to solve the problems that the blowout duration is limited, the blowout energy is provided by a gas storage well, the capacity and the pressure of the gas storage well directly determine the duration and the strength of the blowout, and once the energy of the gas storage well is exhausted, the replenishment needs a period of time, the blowout must be interrupted, and therefore more real persistent blowout cannot be realized.
In order to achieve the above object, the basic scheme of the invention is as follows: a control system for blowout simulation training comprises a data acquisition system, a gas injection valve group control system, a water injection pump group control system, a wireless transmission system, a remote control system, a safety early warning and emergency stop module, a liquid-gas mixer and an injection module; the system also comprises a simulated training field, wherein a first well, a second well and a third well are arranged in the simulated training field, injection modules are arranged in the wells, the liquid-gas mixer is communicated with the injection modules, and a reserved storage yard and a sedimentation water tank are arranged beside the simulated training field;
the gas injection valve bank control system comprises an air compressor, a gas storage tank, a gas supply pipeline, a gas injection valve bank integrated system and a valve bank control system;
the water injection pump set control system comprises a water pool, a liquid supply pipeline, a water injection pump set integrated system and a pump set control system;
the gas supply pipeline and the liquid supply pipeline are respectively communicated with the liquid-gas mixer;
the remote control system comprises a plurality of different sensors, actuators, signal remote transmission modules and field communication modules; the remote control system can control and monitor the whole set of system and is electrically connected with the gas injection valve group control system, the water injection pump group control system, the wireless transmission system, the safety early warning and emergency stop module, the liquid-gas mixer and the injection module;
the data acquisition system is in wireless connection with the wireless transmission system;
the first well is a well with a drill rod, the second well and the third well are empty wells, a reducing device is installed at the bell mouth of the first well, and the top of a drilling tool is in a reducing short circuit; the upper parts of the second well casing and the third well casing are provided with reducing devices.
And furthermore, the whole set of system is provided with a one-key starting device, the one-key starting device automatically performs soft start on the gas injection valve group control system and the water injection pump group control system according to the technological parameter requirements, and after the pressure parameters are normal, the system prompts that blowout simulation operation can be performed.
Furthermore, the whole system comprehensively utilizes the sensing technology of the Internet of things, the key parameters of the inlet pressure of the water pump set, the outlet pressure of the water pump set and the pressure of a well head are collected and input in real time, the air valve set is remotely controlled and output, and all kinds of input and output real-time parameters gather all data through the remote control system.
Further, the safety early warning module has the functions of water storage pool liquid level overrun warning, pump evacuation warning, pump overpressure warning, power failure warning and control valve fault warning.
Further, the drilling depth of the first well is 15 meters, and the drilling depth of the second well and the third well is 5 meters;
the first well is fixed by a 9/8 'casing, and a 9/8' casing joint is installed at the well mouth;
the second well adopts 9/8 'casing well cementation, and a 9/8' casing standard flange is configured at the well head;
the third well is fixed by a 9/8' casing pipe, and the casing pipe is exposed out of the ground by 1.0 meter;
the side wall of the sleeve is provided with sleeve side holes.
Further, the injection module comprises a plunger pump and a nozzle, the gas-liquid mixer is communicated with the plunger pump, the plunger pump is communicated with the nozzle, and the nozzle is arranged in the side hole of the sleeve.
Further, the shower nozzle includes the inner tube, and the inner tube overcoat is equipped with the outer tube, is equipped with a plurality of ball passageways between inner tube and the outer tube, all places in the ball passageway, and the entry has been seted up to the outer tube upper end, and the export has been seted up to the inner tube lower extreme, and entry and export intercommunication, vertical pivot are installed to the inside top of inner tube, and coaxial rotation is connected with a plurality of flabellums in the pivot, and the flabellum below is equipped with the cavity, cavity below fixedly connected with cavernosum.
Principle of the basic scheme: the fluid mixed with gas and liquid is sprayed out through the spray head in the sleeve measuring hole, the specific spraying process is that the fluid enters the inner tube through the inlet formed in the upper end of the outer tube, the fluid rotates through the fan blades rotating freely, the inner tube can rotate relative to the outer tube through the balls between the inner tube and the outer tube, the fluid enters the cavity and is absorbed by the sponge body immediately, the sponge body continues to receive the extrusion of the fluid after the sponge body is saturated, part of the fluid is extruded out, the extruded fluid is sprayed out through the outlet formed in the lower end of the inner tube, the fluid sprayed out can generate centrifugal force due to the rotation of the inner tube, when the fluid enters the vertical well, the fluid impacts the inner wall of the well pipe, the fluid is sprayed out from the well mouth after turbulent flow is formed, and the naturally formed well spraying fluid is simulated to the maximum extent.
The beneficial effects that reach are:
the blowout simulation system is close to the field reality, and simulates out-of-control blowout on the field, so that emergency personnel can carry out emergency training under the real out-of-control blowout scene. The invention adopts mature technology from system design to system architecture design, has higher reliability, stronger fault-tolerant capability, good recovery capability and lightning protection and strong electricity interference resistance, provides continuous blowout energy through the gas injection valve group control system and the water injection pump group control system, more truly simulates the duration and intensity of blowout, and solves the problem that more authentic continuous blowout cannot be realized.
The invention fully considers the compatibility of field supporting facilities, protects equipment and reduces the manufacturing cost and the installation cost of the system to the maximum extent. The system adopts the current advanced technology and equipment, the equipment selection is matched with the technical development, and the technical life of the system and the continuity of later maintenance and upgrading can be guaranteed.
The system fully considers expansibility, adopts standardized design, strictly follows international, domestic and industrial standards of related technologies, ensures transparency and intercommunication interconnection among the systems, and fully considers connection with other systems. The system adopts full Chinese and graphical software to realize the management and maintenance of the whole monitoring system, has clear, concise and friendly man-machine conversation interface, simple and flexible operation and control, and is convenient for monitoring and configuration; the method adopts stable and easy-to-use hardware and software, and does not need any special maintenance tool at all, thereby not only reducing the training cost of professional knowledge for managers, but also saving the daily frequent maintenance cost.
The system adopts perfect safety measures at the front end to ensure the physical safety and the application safety of the front-end equipment, the communication safety must be ensured between the front end and the monitoring center, and the illegal access, intrusion or attack behaviors of the front-end equipment are avoided by adopting a reliable means. The data adopts a mode of combining front-end distributed storage and centralized storage management of a monitoring center, adopts strict user authority control on data access, and makes abnormal quick emergency response and log record.
The invention can simulate real blowout, the gas-liquid mixture is sprayed out from the spray head and enters the well, namely the simulation oil is sprayed out from the well upwards; meanwhile, the closed circuit blowout well can be realized, the blowout gas-liquid mixture is ejected from the well mouth and enters a preset sedimentation water tank, and the blowout gas-liquid mixture is controlled by collecting the sedimentation water tank, so that the environment is not polluted; the well blowout gas-liquid mixture who collects in the sedimentation tank can also supply training pond, pours into again to the analog system through the extraction of pond water pump package to can not cause the wasting of resources, practice thrift the cost.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic diagram of a system configuration according to an embodiment of the present invention.
Fig. 2 is a schematic block diagram of a system according to an embodiment of the present application.
Fig. 3 is a layout diagram of a simulated training field according to an embodiment of the present application.
FIG. 4 is a reduced diameter short-circuiting view of a first well according to an embodiment of the present application.
FIG. 5 is a reduced diameter short graph of a second well and a third well of an embodiment of the present application.
FIG. 6 is a system logic diagram of an embodiment of the present application.
Fig. 7 is a diagram of a gas injection valve set control system (a) according to an embodiment of the present application.
Fig. 8 is a diagram of a gas injection valve set control system (b) according to an embodiment of the present application.
FIG. 9 is a diagram of a control system for a water injection pump set according to an embodiment of the present application.
FIG. 10 is a system diagram of a liquid-gas mixer in an embodiment of the present application.
Fig. 11 is a schematic structural diagram of a showerhead according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection through an intermediate medium, and those skilled in the art will understand the specific meaning of the terms as they are used in the specific case.
Reference numerals in the drawings of the specification include: the nozzle comprises a nozzle 1, an inner pipe 2, an outer pipe 3, a ball passage 4, balls 5, an inlet 6, an outlet 7, a rotating shaft 8, fan blades 9, a cavity 10 and a sponge body 11.
The following is a more detailed description of the present invention by way of specific embodiments.
Example 1:
the embodiments are substantially as described in figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11 of the accompanying drawings: a control system for blowout simulation training comprises a data acquisition system, a gas injection valve group control system, a water injection pump group control system, a wireless transmission system, a remote control system, a safety early warning and emergency stop module, a liquid-gas mixer and an injection module; the system also comprises a simulated training field, wherein a first well, a second well and a third well are arranged in the simulated training field, injection modules are arranged in the wells, the liquid-gas mixer is communicated with the injection modules, and a reserved storage yard and a sedimentation water tank are arranged beside the simulated training field;
the gas injection valve bank control system comprises an air compressor, a gas storage tank, a gas supply pipeline, a gas injection valve bank integrated system and a valve bank control system;
the water injection pump set control system comprises a water pool, a liquid supply pipeline, a water injection pump set integrated system and a pump set control system;
the gas supply pipeline and the liquid supply pipeline are respectively communicated with the liquid-gas mixer;
the remote control system comprises a plurality of different sensors, actuators, signal remote transmission modules and field communication modules; the remote control system can control and monitor the whole system, and is electrically connected with the gas injection valve group control system, the water injection pump group control system, the wireless transmission system, the safety early warning and emergency stop module, the liquid-gas mixer and the injection module;
the data acquisition system is in wireless connection with the wireless transmission system;
the first well is a well with a drill rod, the second well and the third well are empty wells, a reducing device is installed at the bell mouth of the first well, and the top of a drilling tool is in short connection by reducing; and the upper parts of the second well casing and the third well casing are provided with reducing devices.
Example 2:
the difference from the above embodiment is that, as shown in fig. 1: the whole system is provided with a one-key starting device, the one-key starting device automatically performs soft start on a gas injection valve group control system and a water injection pump group control system according to technological parameter requirements, and after pressure parameters are normal, well blowout simulation operation can be prompted.
Example 3:
the difference from the above embodiment is that, as shown in fig. 1: the whole system comprehensively utilizes the sensing technology of the Internet of things, and carries out real-time acquisition and input on key parameters of water pump group inlet pressure, water pump group outlet pressure and wellhead pressure, and carries out remote control output on the gas valve group, and all kinds of input and output real-time parameters gather all data through the remote control system.
Example 4:
the difference from the above embodiment is that, as shown in fig. 1: the safety early warning module has the functions of water storage pool liquid level overrun warning, pump evacuation warning, pump overpressure warning, power failure warning and control valve fault warning.
Example 5:
the difference from the above embodiment is that, as shown in fig. 4 and 5: the drilling depth of the first well is 15 meters, and the drilling depths of the second well and the third well are 5 meters;
the first well adopts 9/8 'casing well cementation, and a 9/8' casing joint is installed at the well mouth;
the second well adopts 9/8 'casing well cementation, and a 9/8' casing standard flange is configured at the well head;
the third well adopts 9/8' casing well cementation, and the casing is exposed out of the ground by 1.0 meter;
the sleeve pipe lateral wall has all been seted up the sleeve pipe side opening.
Example 6:
the difference from the above embodiment is that, as shown in fig. 10: the injection module comprises a plunger pump and a spray head 1, the gas-liquid mixer is communicated with the plunger pump, the plunger pump is communicated with the spray head 1, and the spray head 1 is arranged in a side hole of the sleeve.
Example 7:
the difference from the above embodiment is that, as shown in fig. 11: shower nozzle 1 includes inner tube 2, 2 overcoat of inner tube are equipped with outer tube 3, be equipped with a plurality of ball passageways 4 between inner tube 2 and the outer tube 3, all place in ball 5 in the ball passageway 4, entry 6 has been seted up to 3 upper ends of outer tube, export 7 has been seted up to 2 lower extremes of inner tube, entry 6 and export 7 intercommunication, vertical pivot 8 is installed to 2 inside tops of inner tube, coaxial rotation is connected with a plurality of flabellums 9 in the pivot 8, flabellum 9 below is equipped with cavity 10, cavity 10 below fixedly connected with cavernosum 11.
The specific implementation process is as follows:
the fluid mixed with gas and liquid is sprayed out through the spray head 1 in the sleeve measuring hole, the specific spraying process is that the fluid enters the inner pipe 2 through an inlet 6 formed in the upper end of the outer pipe 3, the fluid rotates through a fan blade 9 which rotates freely, the inner pipe 2 can rotate relative to the outer pipe 3 through a ball 5 between the inner pipe 2 and the outer pipe 3, the fluid enters the cavity 10 and is absorbed by the sponge body 11 immediately, the sponge body 11 continues to receive the extrusion of the fluid after the sponge body 11 is saturated, part of the fluid is extruded out, the extruded fluid is sprayed out through an outlet 7 formed in the lower end of the inner pipe 2, the fluid sprayed out can generate centrifugal force due to the rotation of the inner pipe 2, when the fluid enters a vertical well, the fluid impacts the inner wall of the well pipe to form turbulent flow and then is sprayed out from the well mouth, and the naturally formed well spray fluid is simulated to the maximum extent.
The logic of the system is shown in the attached figure 6 and comprises a gas circuit, a liquid-gas mixer, a matched valve group and a control system, wherein the gas circuit comprises an air compressor, a gas storage tank and the valve group arranged on a communicating gas pipe of the air compressor, the valve group controls gas to enter the liquid-gas mixer, the liquid circuit pumps stored water in a water pool to the liquid-gas mixer through a water pump, the liquid-gas mixer is communicated with a four-way pipeline, and well-jet fluid is conveyed into a first well, a second well and a third well through the pipeline.
The gas injection valve set control system is shown in figures 7 and 8, and the air compressor pressurizes the air storage tank, and compressed air is sent to the liquid-gas mixer through the gas injection valve set.
The control system of the water injection pump set is shown in figure 9, clean water in a water pool is fed into the water injection pump set through a plurality of pipelines by a submersible pump, and the clean water is pressurized and then sent to a liquid-gas mixer.
In the blowout drilling process, the blowout drilling time of single drilling of the control system for blowout simulation training is more than 40 minutes, the height of the blowout is higher than 20 meters, and the height of the blowout is adjustable; the system can realize the blowout of an empty well and the internal blowout of the drilling tool after the blowout preventer is closed; the system has the function of preventing freezing at low temperature.
In the air supply pipeline, an air compressor pressurizes an air storage tank, compressed air is sent into the air storage tank through an air injection valve group according to preset blowout time and a blowout target height, clear water in a liquid supply pipeline and a water tank is fed into a water injection pump group through a submersible pump, blowout parameters are set, the clear water enters a liquid-gas mixer after being pressurized to a specified pressure, a sensor, an actuator, a signal remote transmission module, a field communication module and the like in system control elements in signal connection, the working state of the whole system is monitored in a control room, and a flat plate can be used for remote control.
The first wellhead assembly combination is: annular (FH 35-35) + FZ35-70 (31/2 'half seal) +2FZ35-70 (51/2' half seal, lower full seal) + reducing flange + drilling and production integrated four-way + casing head; the drill rod adopts a 51/2' drill rod.
Three open-hole blowout wells and a first well drilling tool water hole blowout well. The water is sucked from the water storage tank through the submersible pump, conveyed to the plunger pump to be pried, pressurized and conveyed to the gas-liquid mixer, and gas-liquid is mixed and injected into the well from the side hole of the casing pipe to simulate two working conditions of overflow and blowout.
For exploring the influence of blowout height, spout velocity of flow, well head pressure, spout flow, spout department power, drilling rod upper jacking force and drilling tool weight of well head undergauge scope to the blowout, designed experiment 1 and experiment 2:
TABLE 1 blowout data sheet for different well head reducing experiments
| Experiment of | Height of spray | Jet flow velocity m/s | Pressure of well head MPa | Nozzle flow rate m year/min | Power KW at nozzle | Top force KgF on drill rod | Weight Kg of drilling tool |
| Experiment 1: well head reducing 5.5 inches +5 inches API weighted drill pipe inner reducing 1 inch | 20 | 19.8 | 0.196 | 3.7 | 12.2 | 243.5 | 683.3 |
| Experiment 2: |
20 | 19.8 | 0.196 | 7.2 | 23.5 | 243.5 | 683.3 |
The data table of the comparative experiment 1 and the experiment 2 shows that the diameter reduction range of the wellhead is 5.5-6 inches, the height of the drill rod can reach 20 meters when the diameter reduction is 1 inch, the drill rod has no ejection risk, and the drill rod is taken as the proper range of the diameter reduction of the wellhead.
In order to explore the influence of different empty well reducing on spout jet height, spout velocity of flow, well head pressure, spout flow and spout department power, three groups of experimental schemes in the design table below:
TABLE 2 blowout data sheet of different open hole shrinkage experimental schemes
| Experimental protocol | Height of spray | Jet flow velocity m/s | Pressure at well head MPa | Nozzle flow rate m/min | Power KW at nozzle |
| A group of: reducing the diameter of the empty well to 50mm | 20 | 19.8 | 0.196 | 2.3 | 10.6 |
| Two groups are as follows: reducing the diameter of the empty well to 60mm | 20 | 19.8 | 0.196 | 3.4 | 15.3 |
| Three groups: reducing the diameter of the empty well to 70mm | 20 | 19.8 | 0.196 | 4.6 | 20.9 |
As can be seen from the comparison of data of the data tables of the three groups of experimental schemes, when the diameter reduction range of the wellhead is 50-70mm, the three groups of experiments can reach the height of 20 meters, the flow of the nozzle is proper, and the diameter reduction range of the wellhead is 50-70 mm.
After determining relevant equipment and parameters of a gas path and a liquid path according to the parameters, a first well in the diameter-reducing device is additionally provided with the diameter-reducing device at a bell mouth of the first well, the top of a drilling tool is in a diameter-reducing short circuit, and the structure of the diameter-reducing device is shown in figure 4. For the second well and the third well, a reducing device is required to be additionally arranged on the upper part of the casing, and the structure of the reducing device is shown in figure 5.
The whole system consists of a gas circuit, a liquid-gas mixer, a matched valve group and a control system, the logic is realized as shown in the attached figures 2, 6, 7, 8, 9 and 10, the gas injection system pressurizes a gas storage tank by an air compressor, compressed air is sent to the liquid-gas mixer by the gas injection valve group, clean water in a water tank is fed to a water injection pump group by a submersible pump, and the clean water is sent to the liquid-gas mixer after pressurization; the gas injection valve group system can realize the opening and the closing of a gas circuit, and simultaneously, the gas injection valve group can guide gas into a liquid circuit pipeline through reversing valves, purge the pipeline, and discharge water and sewage; and the injected water is sucked from the fire pool through the water feeding pump. A liquid level detector is arranged at the water suction port, the system can automatically detect whether the liquid level of the water pool meets the water suction requirement, and if the liquid level of the water pool does not meet the water suction requirement, the system automatically prohibits or stops running; the plunger pump and the variable frequency plunger pump provide main pressure for the blowout system, and the pump is linked with the water feeding pump, and automatically runs at low speed or stops the pump if the inlet flow is insufficient and the pressure is too low. Basic parameters of the variable frequency plunger pump: rated flow is more than or equal to 220 m3/h, rated pressure: 2MPa, water pump efficiency: > 90%, power supply: 3 phase, 380V and 50HZ; the water injection valve group is integrated with a water injection valve group control liquid pipeline, and when the pressure is too high, the water injection valve group can be switched to a bypass mode and returns to the water pool.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and/or features of the schemes is not described herein in excess. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. A control system for blowout simulation training is characterized in that: the system comprises a data acquisition system, a gas injection valve group control system, a water injection pump group control system, a wireless transmission system, a remote control system, a safety early warning and emergency stop module, a liquid-gas mixer and an injection module; the system also comprises a simulated training field, wherein a first well, a second well and a third well are arranged in the simulated training field, injection modules are arranged in the wells, the liquid-gas mixer is communicated with the injection modules, and a reserved storage yard and a sedimentation water tank are arranged beside the simulated training field;
the gas injection valve bank control system comprises an air compressor, a gas storage tank, a gas supply pipeline, a gas injection valve bank integrated system and a valve bank control system;
the water injection pump set control system comprises a water pool, a liquid supply pipeline, a water injection pump set integrated system and a pump set control system;
the gas supply pipeline and the liquid supply pipeline are respectively communicated with the liquid-gas mixer;
the remote control system comprises a plurality of different sensors, actuators, signal remote transmission modules and field communication modules; the remote control system can control and monitor the whole set of system and is electrically connected with the gas injection valve group control system, the water injection pump group control system, the wireless transmission system, the safety early warning and emergency stop module, the liquid-gas mixer and the injection module;
the data acquisition system is in wireless connection with the wireless transmission system;
the first well is a well with a drill rod, the second well and the third well are empty wells, a reducing device is installed at the bell mouth of the first well, and the top of a drilling tool is in a reducing short circuit; the upper parts of the second well casing and the third well casing are provided with reducing devices.
2. A blowout simulation training control system according to claim 1, wherein: the whole set of system is provided with a one-key starting device, the one-key starting device automatically performs soft start on a gas injection valve group control system and a water injection pump group control system according to technological parameter requirements, and well blowout simulation operation can be prompted after pressure parameters are normal.
3. A blowout simulation training control system according to claim 1, wherein: the whole system comprehensively utilizes the sensing technology of the Internet of things, real-time acquisition and input of key parameters of water pump group inlet pressure, water pump group outlet pressure and wellhead pressure are carried out, remote control output is carried out on the air valve group, and all kinds of input and output real-time parameters gather all data through the remote control system.
4. A control system for blowout simulation training according to claim 1, wherein: the safety early warning module has the functions of water storage pool liquid level overrun warning, pump evacuation warning, pump overpressure warning, power failure warning and control valve fault warning.
5. A blowout simulation training control system according to claim 1, wherein: the drilling depth of the first well is 15 meters, and the drilling depths of the second well and the third well are 5 meters;
the first well adopts 9/8 'casing well cementation, and a 9/8' casing joint is installed at the well mouth;
the second well adopts 9/8 'casing well cementation, and a 9/8' casing standard flange is configured at the well head;
the third well is fixed by a 9/8' casing pipe, and the casing pipe is exposed out of the ground by 1.0 meter;
a plurality of vertically-arranged sleeve side holes are formed in the side wall of each sleeve.
6. A control system for blowout simulation training according to claim 5, wherein: the injection module comprises a plunger pump and a spray head, the gas-liquid mixer is communicated with the plunger pump, the plunger pump is communicated with the spray head, and the spray head is arranged in a side hole of the sleeve.
7. A control system for blowout simulation training according to claim 6, wherein: the shower nozzle includes the inner tube, and the inner tube overcoat is equipped with the outer tube, is equipped with a plurality of ball passageways between inner tube and the outer tube, all places in the ball passageway, and the entry has been seted up to the outer tube upper end, and the export has been seted up to the inner tube lower extreme, and vertical pivot is installed to entry and export intercommunication, the inside top of inner tube, and coaxial rotation is connected with a plurality of flabellums in the pivot, and the flabellum below is equipped with the cavity, cavity below fixedly connected with cavernosum.
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