CN109812707B - Method, device and system for reducing pressure of entering station of oilfield gathering and transportation station - Google Patents
Method, device and system for reducing pressure of entering station of oilfield gathering and transportation station Download PDFInfo
- Publication number
- CN109812707B CN109812707B CN201910237112.1A CN201910237112A CN109812707B CN 109812707 B CN109812707 B CN 109812707B CN 201910237112 A CN201910237112 A CN 201910237112A CN 109812707 B CN109812707 B CN 109812707B
- Authority
- CN
- China
- Prior art keywords
- pressure
- gathering
- regulating valve
- station
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000001105 regulatory effect Effects 0.000 claims abstract description 127
- 230000001276 controlling effect Effects 0.000 claims description 20
- 230000008859 change Effects 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 12
- 230000002222 downregulating effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 12
- 230000010365 information processing Effects 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 description 12
- 230000009467 reduction Effects 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000009096 changqing Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pipeline Systems (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a method, a device and a system for reducing the pressure of the entering of an oilfield gathering and transportation station, which belong to the technical field of oilfield gathering and transportation information processing systems, and comprise the following steps: the first receiving comparison module receives first pressure information, compares the first pressure information with a preset pressure value in the first receiving comparison module to obtain a ratio parameter, wherein the preset pressure value of the first receiving comparison module is the maximum value of the pressure of the oil pipeline conveyed to a downstream pipeline, and the first pressure information is the pressure measured by a first pressure transmitter at an oil inlet of the gathering and conveying station; the pressure reducing valve is pre-regulated, so that the opening degree of the pressure reducing valve is pre-regulated according to the inlet pressure, oil inlet and outlet of the gathering and transportation station are effectively controlled, the process flow is simplified, the regulation and control are not timely, the supervision work of field personnel is reduced, and the gathering and transportation station is automatically depressurized.
Description
Technical Field
The invention belongs to the technical field of oilfield gathering and transmission information processing systems, and particularly relates to a method, a device and a system for reducing pressure of an oilfield gathering and transmission station entering station.
Background
The Changqing oilfield belongs to a typical special/ultralow permeability oil reservoir, and has poor reservoir physical properties, strong heterogeneity and microcrack development and high original gas-oil ratio. In the initial stage of new oil layer exploitation, wellhead pressure is large, after entering a downstream station, the entering station pressure is larger than 0.5MPa, the pressure exceeds the bearing capacity of common station equipment and containers, high risk exists in production operation, particularly in a well site developed by a tri-stack horizontal well, the downstream entering station pressure can reach 7.3MPa, and once explosion accidents occur in overpressure operation, the safety of a ground gathering and transportation station site and a downstream gathering and transportation pipe network is seriously threatened.
On the other hand, the Hudoos basin at the site of the Changqing oilfield has complex topography conditions and deep ravines in the oil area. In the oil pipeline line selection process, the place with large pipeline drop cannot be avoided, so that the dynamic water pressure is high after the pipeline passes over the crossover point, and the pipeline arrival pressure is high, and a decompression system is required to be arranged at the pipeline arrival position at the moment so as to protect the operation safety of a downstream station.
In the process of implementing the embodiment of the present invention, the inventors found that at least the following defects exist in the background art:
the pressure reducing system adopted in China has complex process flow, untimely regulation and control, needs personnel on-site real-time supervision, has high economic cost and can not realize that the automatic pressure reducing system replaces the traditional pressure reducing system.
Disclosure of Invention
In order to solve the problems that the existing domestic decompression system is complex in process flow, untimely in regulation and control, needs personnel on-site real-time supervision, is high in economic cost and cannot realize an automatic decompression system, the embodiment of the invention provides an on-site decompression method, an on-site decompression device and an on-site decompression system for an oilfield gathering and transportation station.
The technical scheme of the invention is as follows:
an oilfield gathering and transportation station arrival pressure reduction method, the method comprising:
step 1: the first receiving comparison module receives first pressure information, compares the first pressure information with a preset pressure value in the first receiving comparison module to obtain a ratio parameter, wherein the preset pressure value in the first receiving comparison module is the maximum value of the pressure of the oil pipeline conveyed to a downstream pipeline, and the first pressure information is the pressure measured by a first pressure transmitter at the oil inlet of the gathering and conveying station;
step 2: the gradient instruction module obtains the parameters and brings the parameters into a gradient instruction set preset in the gradient instruction module, the parameters are compared in the gradient instruction set to obtain the interval position of the parameters in the gradient instruction set, the instruction corresponding to the interval position is obtained, and each gradient of the gradient instruction set is provided with an instruction for controlling the pre-opening degree of the pressure regulating valve;
step 3: the control module acquires the instruction and controls the pressure regulating valve through the instruction.
The control module acquires the instruction and before the pressure regulating valve is controlled by the instruction, the control module further comprises:
step 2.1: the second receiving and comparing module receives second pressure information, compares the second pressure information with a preset pressure value of the second receiving and comparing module, and if the second pressure information exceeds the preset pressure value of the second receiving and comparing module, the step 2.2 is carried out;
step 2.2: the forced down-regulating module is used for forcedly down-regulating the grade of the gradient corresponding to the parameter obtained by the ratio of the first pressure information to the preset pressure value in the first receiving and comparing module until the second pressure information is smaller than the preset pressure value of the second receiving and comparing module, wherein the second pressure information is the pressure measured by a second pressure transmitter at the oil outlet position of the gathering and transportation station;
the method further comprises the steps of:
step 4: the phase change monitoring module receives first temperature information and second temperature information, and determines phase change according to the second temperature information and the first temperature information, wherein the first temperature information is the oil inlet temperature of the gathering and transportation station, and the second temperature information is the oil outlet temperature of the gathering and transportation station.
The method further comprises the steps of:
step 5: the fault detection control module receives a pressure regulating valve feedback signal, and if the feedback signal is interrupted or the feedback signal is error information, a bypass pipeline valve opening signal and a pressure regulating valve inlet valve closing signal are sent, wherein the pressure regulating valve feedback signal is a signal which is arranged in the pressure regulating valve and used for detecting the running state of the pressure regulating valve and sent by the pressure regulating valve running state sensor;
and 6, when the alarm module acquires that the feedback signal is not provided with a signal or the feedback signal is an error message, controlling the alarm to send an alarm signal.
An oilfield gathering and transportation station arrival pressure relief device for use in a control module, the device comprising:
the first receiving comparison module is used for receiving first pressure information and comparing the first pressure information with a preset pressure value in the first receiving comparison module to obtain a ratio parameter, wherein the preset pressure value in the first receiving comparison module is the maximum value of the pressure of the oil pipeline conveyed to a downstream pipeline, and the first pressure information is the pressure measured by a first pressure transmitter at the oil inlet of the gathering and conveying station;
the gradient instruction module is used for acquiring the parameters and bringing the parameters into a gradient instruction set preset in the gradient instruction module, comparing the interval positions of the parameters in the gradient instruction set, and acquiring instructions corresponding to the interval positions, wherein each gradient of the gradient instruction set is provided with instructions for controlling the pre-opening degree of the pressure regulating valve;
the control module is used for acquiring the instruction and controlling the pressure regulating valve through the instruction.
Further comprises:
the second receiving and comparing module is used for receiving second pressure information, comparing the second pressure information with a preset pressure value of the second receiving and comparing module, and starting the forced downward regulating module if the second pressure information exceeds the preset pressure value of the second receiving and comparing module;
the forced downward adjustment module is used for forcedly downward adjusting the grade of the gradient corresponding to the parameter obtained by the ratio of the first pressure information to the preset pressure value in the first receiving comparison module until the second pressure information is smaller than the preset pressure value of the second receiving comparison module, and the second pressure information is the pressure measured by the second pressure transmitter at the oil outlet position of the gathering and transportation station.
Further comprises:
the phase change monitoring module is used for receiving first temperature information and second temperature information, determining phase change according to the second temperature information and the first temperature information, wherein the first temperature information is the oil inlet temperature of the gathering and transportation station, and the second temperature information is the oil outlet temperature of the gathering and transportation station.
Further comprises:
the fault detection control module is used for receiving a pressure regulating valve feedback signal, and if the feedback signal is interrupted or the feedback signal is error information, a bypass pipeline valve opening signal and a pressure regulating valve inlet valve closing signal are sent, wherein the pressure regulating valve feedback signal is a signal which is arranged in the pressure regulating valve and used for detecting the running state of the pressure regulating valve and sent by the pressure regulating valve sensor;
and the alarm module is used for controlling the alarm to send an alarm signal when the feedback signal is not provided with a signal or is an error message.
An oilfield gathering and transportation station inbound depressurization system comprising:
the first pressure transmitter is arranged at the oil inlet end of the gathering and transportation station;
the second pressure transmitter is arranged at the oil outlet end of the gathering and transportation station;
the pressure regulating valve, the first pressure transmitter and the second pressure transmitter are both positioned on one pipeline, and the pressure regulating valve is arranged between the first pressure transmitter and the second pressure transmitter;
the control module is electrically connected with the first pressure transmitter, the second pressure transmitter and the pressure regulating valve; and
the control module is used for executing the station entering decompression method of the oil field gathering and transportation station for adjusting the pressure regulating valve;
a filtering system is arranged between the first pressure transmitter and the pressure regulating valve;
the oil inlet end of the gathering and conveying station is provided with a first temperature transmitter, and the oil outlet end of the gathering and conveying station is provided with a second temperature transmitter;
the filter system is connected with a first filter and a second filter in parallel, and the first filter and the second filter are respectively connected to the pipeline;
the system also comprises a first valve, a first pressure gauge, a first filter, a first differential pressure alarm, a second valve, a third valve, a second pressure gauge, a second filter, a second differential pressure alarm, a fourth valve, a third pressure gauge, a first thermometer, a fourth pressure gauge, a second thermometer and a fifth valve;
the circuit of the first filter is connected with a first valve and a second valve in series, the first filter is connected with a first differential pressure alarm and a first pressure gauge in parallel, and two ends of the first differential pressure alarm are connected with two ends of the first filter;
the circuit of the second filter is connected with a third valve, a third pressure gauge and a fourth valve in series, the second filter is connected with a second pressure gauge and a second pressure difference alarm in parallel, and two ends of the second filter are connected with two ends of the second filter;
the inlet of the pressure regulating valve is provided with a first thermometer, and the outlet of the pressure regulating valve is provided with a second thermometer;
a fourth pressure gauge, a second thermometer and a fifth valve are connected in parallel on the tail pipeline of the pressure regulating valve;
the inlet and the outlet of the pipeline are connected with a bypass pipeline and a sixth valve, the inlet of the pipeline is connected with the outlet of the pipeline through the bypass pipeline, and the bypass pipeline is provided with the sixth valve for controlling the bypass pipeline to be opened and closed;
the pressure regulating valve is an angle regulating valve.
The beneficial effects of the invention are as follows: the inlet and outlet pressure of the gathering and transportation station are monitored by respectively installing the pressure transmitters at the inlet and outlet of the gathering and transportation station, and after the inlet pressure is monitored, the pressure reducing valve is pre-regulated, so that the opening degree of the pressure reducing valve is pre-regulated according to the inlet pressure, the oil inlet and outlet of the gathering and transportation station is effectively controlled, the process flow and the untimely regulation and control are simplified, the supervision work of field personnel is reduced, the cost is lower, and the gathering and transportation station is automatically decompressed.
Drawings
FIG. 1 is a flow chart of a method for reducing pressure in an oilfield gathering and transportation station;
FIG. 2 is a flow chart of a method for reducing pressure in an oilfield in-situ process at a field station in accordance with another embodiment of the present invention;
FIG. 3 is a structural framework diagram of an oilfield gathering and transportation station arrival pressure relief device according to one embodiment of the present invention;
FIG. 4 is a structural framework diagram of an oilfield gathering and transportation station arrival pressure relief device according to another embodiment of the present invention;
FIG. 5 is a block diagram of an oilfield gathering and transportation station inbound depressurization system.
The reference numerals in the drawings are: 1. a pressure regulating valve; 2. a filtration system; 3. a first pressure transmitter; 4. a temperature transmitter; 5. a first valve; 6. a first pressure gauge; 7. a first filter; 8. a first differential pressure alarm; 9. a second valve; 10. a third valve; 11. a second pressure gauge; 12. a second filter; 13. a second pressure differential alarm; 14. a fourth valve; 15. a third pressure gauge; 16. a first thermometer; 17. a second pressure transmitter; 18. a fourth pressure gauge; 19. a second temperature transmitter; 20. a second thermometer; 21. a fifth valve; 22. a sixth valve; 23. a bypass line.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, in a first aspect, there is shown an approach depressurization method of an oilfield gathering and transportation station, provided by an embodiment of the present invention, for use in a control system, the method comprising:
step 1: the first receiving comparison module receives first pressure information, compares the first pressure information with a preset pressure value in the first receiving comparison module to obtain a ratio parameter, wherein the preset pressure value in the first receiving comparison module is the maximum value of the pressure of the oil pipeline conveyed to a downstream pipeline, and the first pressure information is the pressure measured by a first pressure transmitter at the oil inlet of the gathering and conveying station;
step 2: the gradient instruction module obtains the parameters and brings the parameters into a gradient instruction set preset in the gradient instruction module, the parameters are compared in the gradient instruction set to obtain the interval position of the parameters in the gradient instruction set, the instruction corresponding to the interval position is obtained, and each gradient of the gradient instruction set is provided with an instruction for controlling the pre-opening degree of the pressure regulating valve 1;
step 3: the control module obtains the instruction and controls the pressure regulating valve 1 through the instruction.
In the above embodiment, after receiving the oil inlet pressure of the gathering and delivering station in the control system, comparing the pressure with the oil outlet pressure of the gathering and delivering station, if the oil inlet pressure does not exceed the maximum oil outlet pressure, calling the gradient grade corresponding to the gradient instruction set preset in the system, wherein the gradient grade under the above condition is the gradient grade corresponding to the pressure regulating valve 1 to the maximum, if the oil inlet pressure exceeds the maximum oil outlet pressure, calling the gradient grade corresponding to the pressure reduction in the gradient instruction set preset in the system; the discharge pressure through the pressure regulating valve 1 is brought to the range of the maximum discharge pressure, and the gradient level ensures the maximum efficiency at the range of the maximum discharge pressure.
In the gradient grade, the oil pressure is gradually increased and divided into interval ranges by the oil pressure, after the first receiving comparison module receives the first pressure information, the first receiving comparison module inquires in which interval range the first pressure information is positioned, the interval ranges are all preset with gradient instruction sets corresponding to the gradients, each gradient is matched with an instruction, and the instruction is used for controlling the opening degree of the pressure regulating valve 1 so that the oil pressure of any gathering and conveying station in the interval range corresponding to the instruction can be regulated by the pressure regulating valve 1 to be lower than the maximum value of the pressure of the oil conveying pipeline conveyed to the downstream pipeline. The oil inlet pressure of the gathering and transportation station is managed in an interval mode, and the processing capacity of the control module can be effectively reduced.
Further, referring to fig. 2, in a second aspect, there is shown an approach decompression method of an oilfield gathering and transmission station according to an embodiment of the present invention, before the control module obtains the instruction and controls the pressure regulating valve through the instruction, the method further includes:
step 2.1: the second receiving and comparing module receives second pressure information, compares the second pressure information with a preset pressure value of the second receiving and comparing module, and if the second pressure information exceeds the preset pressure value of the second receiving and comparing module, the step 2.2 is carried out;
step 2.2: the forced down-regulating module is used for forcedly down-regulating the grade of the gradient corresponding to the parameter obtained by the ratio of the first pressure information to the preset pressure value in the first receiving comparison module until the second pressure information is smaller than the preset pressure value of the second receiving comparison module, wherein the second pressure information is the oil outlet pressure of the gathering and outputting station, and the second pressure information is the pressure measured by a second pressure transmitter at the oil outlet position of the gathering and outputting station.
In the above embodiment, the pressure regulating valve 1 generates an error under preconditioning, and this error is corrected by monitoring the pressure at the outlet of the pressure regulating valve 1, and when it is detected that the output pressure of the pressure regulating valve 1 is still greater than the maximum value of the downstream line pressure after the pressure regulating valve 1 is preconditioned by acquiring the first pressure information, the level of the gradient at that time is forcedly adjusted down, so as to reduce the output pressure of the pressure regulating valve 1 until the output pressure of the pressure regulating valve 1 is not greater than the maximum value of the downstream line pressure.
Further, in a third aspect, an embodiment of the present invention provides an oilfield gathering and transportation station entering decompression method, where the method further includes:
step 4: the phase change monitoring module receives first temperature information and second temperature information, and determines phase change according to the second temperature information and the first temperature information, wherein the first temperature information is the oil inlet temperature of the gathering and transportation station, and the second temperature information is the oil outlet temperature of the gathering and transportation station.
In the above embodiments, in some cases, when the pressure difference between the incoming station pressure and the outgoing station pressure of the gathering and outputting station is too large, the phase change of oil will be generated, in order to monitor the occurrence of this situation, temperature transmitters are installed at the incoming station port and the outgoing station port of the gathering and outputting station respectively, so as to receive the temperature information of the incoming station port and the outgoing station port in real time, monitor the occurrence of the phase change, acquire warning information, provide corresponding parameters for field personnel, and then take corresponding measures.
Further, in a fourth aspect, an embodiment of the present invention provides an in-station depressurizing method for an oilfield gathering and transportation station, where the method further includes:
step 5: the fault detection control module receives a pressure regulating valve feedback signal, and if the feedback signal is interrupted or the feedback signal is error information, a bypass pipeline valve opening signal and a pressure regulating valve inlet valve closing signal are sent, wherein the pressure regulating valve feedback signal is a signal which is arranged in the pressure regulating valve and used for detecting the running state of the pressure regulating valve and sent by the pressure regulating valve running state sensor;
in the above embodiment, in order to monitor the condition that the pressure regulating valve 1 does not operate or fails, a sensor for detecting the operation state of the pressure regulating valve 1 is provided in the pressure regulating valve 1, and is used for monitoring the operation state of the pressure regulating valve 1 in real time, and when the pressure regulating valve 1 is monitored to fail, the on-line valve of the bypass pipe is rapidly controlled to open, so as to avoid the pressure accumulation of the pipeline and damage the whole system.
Further, the inlet valve of the pressure regulating valve 1 can be closed, so that an maintainer can rapidly process the pressure regulating valve 1 and timely recover the pressure reducing system of the gathering and conveying station.
Further, in a fifth aspect, an embodiment of the present invention provides an in-station depressurizing method for an oilfield gathering and transportation station, where the method further includes:
and when the alarm module acquires that the feedback signal is not a signal or the feedback signal is an error message, the alarm is controlled to send an alarm signal.
In order to quickly inform an maintainer of timely finding out the fault problem of the pressure regulating valve 1, the maintainer is informed by controlling an alarm and/or sound when the feedback signal is not provided or is an error message.
Referring to fig. 3, there is shown an apparatus for reducing pressure in an oilfield entry into a field station for use in a control system, the apparatus comprising:
the first receiving and comparing module 101 is configured to receive first pressure information and compare the first pressure information with a preset pressure value in the first receiving and comparing module to obtain a ratio parameter, where the preset pressure value in the first receiving and comparing module is a maximum value of pressure of an oil pipeline transmitted to a downstream pipeline, and the first pressure information is a pressure measured by a first pressure transmitter at an oil inlet of the gathering and transportation station;
the gradient instruction module 110 is configured to obtain the parameter and bring the parameter into a gradient instruction set preset in the gradient instruction module, compare the interval position of the parameter in the gradient instruction set with the interval position of the parameter in the gradient instruction set, and obtain an instruction corresponding to the interval position, where each gradient of the gradient instruction set is set with an instruction for controlling the pre-opening of the pressure regulating valve;
the control module 120 is configured to obtain the instruction and control the pressure regulating valve according to the instruction.
Optionally, after the first receiving comparison module 101 in the control system receives the oil inlet pressure of the gathering and delivering station, comparing the pressure with the oil outlet pressure of the gathering and delivering station, if the oil inlet pressure does not exceed the maximum oil outlet pressure, calling a gradient grade corresponding to a gradient instruction set preset by the gradient instruction module 110 in the system, wherein the gradient grade under the condition is from the control pressure regulating valve 1 to the maximum, if the oil inlet pressure exceeds the maximum oil outlet pressure, calling a gradient grade corresponding to the gradient instruction set preset in the system, and controlling the pressure regulating valve 1 by the control module 120 by the opening instruction in the gradient; the discharge pressure through the pressure regulating valve 1 is brought to the range of the maximum discharge pressure, and the gradient level ensures the maximum efficiency at the range of the maximum discharge pressure.
Further, referring to fig. 4, there is shown an apparatus for reducing pressure of an incoming station of an oilfield gathering and transportation station according to another embodiment of the present invention, which is used in a control system, and the apparatus further includes:
the second receiving and comparing module 102 is configured to receive second pressure information, compare the second pressure information with a preset pressure value of the second receiving and comparing module, and start the forced down-regulating module if the second pressure information exceeds the preset pressure value of the second receiving and comparing module;
the forced down-regulating module 130 is configured to forcibly down-regulate the grade of the gradient corresponding to the parameter obtained by the ratio of the first pressure information to the preset pressure value in the first receiving and comparing module until the second pressure information is smaller than the preset pressure value of the second receiving and comparing module, where the second pressure information is the oil outlet pressure of the gathering and outputting station, and the second pressure information is the pressure measured by the second pressure transmitter at the oil outlet of the gathering and outputting station.
Optionally, the pressure regulating valve 1 may generate an error under preconditioning, and this error is corrected by monitoring the pressure at the outlet of the pressure regulating valve 1, and when the second receiving module 102 detects that the output pressure of the pressure regulating valve 1 is still greater than the maximum value of the downstream pipeline pressure after the first pressure information is obtained to precondition the pressure regulating valve 1, the forced down-regulating module 130 forcibly adjusts the level of the gradient at this time, so as to reduce the output pressure of the pressure regulating valve 1 until the output pressure of the pressure regulating valve 1 is not greater than the maximum value of the downstream pipeline pressure.
Another embodiment of the present invention provides a device for reducing pressure of an oilfield gathering and transportation station entering a station, which further includes:
the phase change monitoring module is used for receiving first temperature information and second temperature information, determining phase change according to the second temperature information and the first temperature information, wherein the first temperature information is the oil inlet temperature of the gathering and transportation station, and the second temperature information is the oil outlet temperature of the gathering and transportation station.
Optionally, when the pressure difference between the station entering and the station exiting of the station is too large, oil phase transformation can be generated, in order to monitor the occurrence of the situation, temperature transmitters are respectively installed at the station entering and the station exiting of the station, a phase transformation monitoring module is used for receiving the temperature information of the station entering and the station exiting in real time, monitoring the occurrence of phase transformation, acquiring warning information, providing corresponding parameters for field personnel, and then taking corresponding measures.
Another embodiment of the present invention provides a device for reducing pressure of an oilfield gathering and transportation station entering a station, which further includes:
the fault detection control module is used for receiving a pressure regulating valve feedback signal, and if the feedback signal is interrupted or the feedback signal is error information, a bypass pipeline valve opening signal and a pressure regulating valve inlet valve closing signal are sent, wherein the pressure regulating valve feedback signal is a signal which is arranged in the pressure regulating valve and used for detecting the running state of the pressure regulating valve and sent by the pressure regulating valve sensor;
optionally, in order to quickly notify the overhauling personnel to find the fault problem of the pressure regulating valve 1 in time, the fault detection control module controls an alarm and/or sounds to notify the overhauling personnel when receiving the feedback signal without a signal or the feedback signal is an error message.
Another embodiment of the present invention provides a device for reducing pressure of an oilfield gathering and transportation station entering a station, which further includes:
and the alarm module is used for controlling the alarm to send an alarm signal when the feedback signal is not provided with a signal or is an error message.
The inlet valve of the pressure regulating valve 1 can be optionally closed, so that an maintainer can rapidly process the pressure regulating valve 1 and timely recover the pressure reducing system of the gathering and conveying station. And sending an alarm signal when no feedback signal is obtained or the feedback signal is error information.
Referring to fig. 5, an embodiment of the present disclosure provides an oilfield gathering and transportation station approach decompression system, comprising:
the first pressure transmitter 3 is arranged at the oil inlet end of the gathering and transportation station;
the second pressure transmitter 17 is arranged at the oil outlet end of the gathering and transportation station;
the pressure regulating valve 1, the first pressure transmitter 3 and the second pressure transmitter 17 are all positioned on one pipeline, and the pressure regulating valve 1 is arranged between the first pressure transmitter 3 and the second pressure transmitter 17;
the control module is electrically connected with the first pressure transmitter 3, the second pressure transmitter 17 and the pressure regulating valve 1; and
the control module is used for executing an oilfield gathering station arrival decompression method and is used for adjusting the pressure regulating valve 1;
in the above embodiment, the method for reducing pressure of the entering station of the oilfield gathering and transportation station operated in the computer is used for controlling the first pressure transmitter 3, the second pressure transmitter 17 and the pressure regulating valve 1, is used for solving the overpressure accident of entering the entering station of the oil 24, keeps the oil entering the entering station 25 under the safe pressure, realizes the safe pressure reduction, protects the flow of the downstream gathering and transportation system, has the advantages of simple process, optimized flow, simple construction, convenient operation, safety, environmental protection and the like, is suitable for the self-blowing well site with larger wellhead pressure in the initial stage of oilfield development, is also suitable for the situation that the entering pressure of the entering station of other oilfield gathering and transportation stations is higher and needs to reduce pressure, can realize the maximum pressure reduction under the condition that no phase change occurs, and has wider application prospect in the field station with larger wellhead pressure of the initial stage of oilfield development or larger entering pressure due to the influence of topography.
Further, a first temperature transmitter 4 is arranged at the oil inlet end of the gathering and transportation station, and a second temperature transmitter 19 is arranged at the oil outlet end of the gathering and transportation station;
the filter system is connected with a first filter 7 and a second filter 12 in parallel, and the first filter 7 and the second filter 12 are respectively connected to pipelines;
in the above embodiment, two sets of parallel filters are disposed on the filtering system 2, the filters are a first filter 8 and a second filter 10, the two sets of filters are in a standby relationship, a first pressure gauge 6 and a first valve 5 are sequentially disposed at the front end of the first filter 8, a second valve 9 is disposed at the rear end of the first filter, a second pressure gauge 11 and a third valve 10 are sequentially disposed at the front end of the second filter 12, a fourth valve 14 is disposed at the rear end of the second filter, a third pressure gauge 15 is disposed on a pipeline connected between the second valve 9 and the fourth valve 14, the filters are standby each other, when one filter is damaged, the other filter can continue to work, and the valve of the damaged filter can be closed to repair the damaged filter without affecting the continuous operation of the depressurization system.
Further, the system also comprises a first valve 5, a first pressure gauge 6, a first filter 7, a first differential pressure alarm 8, a second valve 9, a third valve 10, a second pressure gauge 11, a second filter 12, a second differential pressure alarm 13, a fourth valve 14, a third pressure gauge 15, a first thermometer 16, a fourth pressure gauge 18, a second thermometer 20 and a fifth valve 21.
The circuit of the first filter 7 is connected with a first valve 5 and a second valve 9 in series, the first filter 7 is connected with a first differential pressure alarm 8 and a first pressure gauge 6 in parallel, and two ends of the first differential pressure alarm 8 are connected with two ends of the first filter 7;
the circuit of the second filter 12 is connected with a third valve 10, a third pressure gauge 15 and a fourth valve 14 in series, the second filter 12 is connected with a second pressure gauge 11 and a second pressure difference alarm 13 in parallel, and two ends of the second filter 12 are connected with two ends of the second filter 12;
a first thermometer 16 is arranged at the inlet of the pressure regulating valve 1, and a second thermometer 20 is arranged at the outlet of the pressure regulating valve 1;
the outlet section pipeline of the pressure regulating valve 1 is connected with a fourth pressure gauge 18, a second thermometer 20 and a fifth valve 21 in parallel;
the inlet and the outlet of the pipeline are connected with a bypass pipeline 23 and a sixth valve 22, the inlet of the pipeline is connected with the outlet of the pipeline through the bypass pipeline 23, and the bypass pipeline 23 is provided with the sixth valve 22 for controlling the opening and the closing of the bypass pipeline;
the pressure regulating valve is an angle regulating valve.
In the above embodiment, the differential pressure alarm 8 and the differential pressure alarm 9 are arranged on the filter 7 and the filter 13; the angle pressure regulating valve takes an electric actuating mechanism to take pressure through a second pressure transmitter 17 at the rear end to sense pipeline pressure, and after the pressure is uploaded to a control system of a downstream station, the upstream oil pressure is regulated and controlled in a station entering mode; when the pressure of the oil coming from the upper station is larger than 0.5MPa, the trigger angle type pressure regulating valve is provided with the electric actuating mechanism 1 to regulate the pressure, and when the pressure of the oil coming from the upper station is smaller than or equal to 0.5MPa, the angle type pressure regulating valve does not generate a pressure reducing function, and fluid normally passes through. The pressure reducing system and the pressure reducing process for the oil field gathering and transportation station can realize the monitoring and control of the pressure of the entering station, can solve the problem of overpressure accident of entering the oil station when entering the station, realize the safe pressure reduction and protect the flow of the downstream gathering and transportation system, have the advantages of simple process, optimized flow, simple construction, convenient operation, safety, environmental protection and the like, are suitable for the self-blowing well field with larger wellhead pressure in the initial stage of oil field development, are also suitable for the condition of higher pressure of entering the station when needing pressure reduction in other oil field gathering and transportation stations, can realize the maximum pressure reduction under the condition of not generating phase change, and have wider application prospect in the field with larger wellhead pressure of the oil field in the initial stage of oil field development or larger pressure when entering the station due to the influence of topography.
To sum up: the invention provides an incoming station decompression system of an oilfield gathering and transportation station, which at least comprises the following steps:
step 1, when the pressure of incoming oil of an upstream station is not more than 0.5MPa and is normal, the incoming oil passes through a first pressure transmitter 3, a first temperature transmitter 4, a filtering system 2, an angular pressure regulating valve is provided with a power actuating mechanism 1, and a second pressure transmitter 17, a fourth pressure meter 18, a second temperature transmitter 19, a thermometer 20 and a fifth valve 21 are arranged in the station;
step 2, when the upstream station oil pressure is abnormal and is set to be between 0.5MPa and 8MPa according to the system, the upstream station oil passes through a first pressure transmitter 3 and a first temperature transmitter 4, passes through a filtering system 2, an angle pressure regulating valve is provided with a power actuating mechanism 1, a second pressure transmitter 17 and then passes through uploading data to a downstream control system, the control system regulates the upstream station oil pressure, and the upstream station oil pressure is regulated to be 0.5MPa according to the protection pressure set by the system and then enters a station through a second pressure transmitter 17, a fourth pressure gauge 18, a second temperature transmitter 19, a thermometer 20 and a fifth valve 21;
and 3, when the angle regulating valve does not act or fails, the pipeline pressure is uploaded to a downstream control system through a second pressure transmitter 17, an SCADA system in the station generates an alarm prompt, the upstream is required to be emptied, the conveying system is closed, and after no risk is found, the pressure is recovered to be normal, and the production operation is carried out again.
And 4, closing the filter system 2, closing the valve five 21, opening the valve six 22, bypassing the production flow and recovering the normal production flow as soon as possible during maintenance and repair of the angle-type regulating valve.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in this embodiment are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
Furthermore, the description of "first," "second," etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
The technical solutions between the embodiments may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art that when the combination of technical solutions contradicts or cannot be implemented, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.
Claims (6)
1. An oilfield gathering and transportation station arrival pressure reducing device, which is used in a control module, and comprises:
the first receiving comparison module is used for receiving first pressure information and comparing the first pressure information with a preset pressure value in the first receiving comparison module to obtain a ratio parameter, wherein the preset pressure value of the first receiving comparison module is the maximum value of the pressure of the oil pipeline conveyed to a downstream pipeline, and the first pressure information is the pressure measured by a first pressure transmitter at the oil inlet of the gathering and conveying station;
the gradient instruction module is used for acquiring the parameters and bringing the parameters into a gradient instruction set preset in the gradient instruction module, comparing the interval positions of the parameters in the gradient instruction set, and acquiring instructions corresponding to the interval positions, wherein each gradient of the gradient instruction set is provided with instructions for controlling the pre-opening degree of the pressure regulating valve (1);
the control module is used for acquiring the instruction and controlling the pressure regulating valve (1) through the instruction;
further comprises:
the second receiving and comparing module is used for receiving second pressure information, comparing the second pressure information with a preset pressure value of the second receiving and comparing module, and starting the forced downward regulating module if the second pressure information exceeds the preset pressure value of the second receiving and comparing module;
the forced downward adjustment module is used for forcedly downward adjusting the grade of the gradient corresponding to the parameter obtained by the ratio of the first pressure information to the preset pressure value in the first receiving comparison module until the second pressure information is smaller than the preset pressure value of the second receiving comparison module, wherein the second pressure information is the oil outlet pressure of the gathering and outputting station, and the second pressure information is the pressure measured by a second pressure transmitter at the oil outlet position of the gathering and outputting station;
further comprises: the phase change monitoring module is used for receiving first temperature information and second temperature information, determining phase change according to the second temperature information and the first temperature information, wherein the first temperature information is the oil inlet temperature of the gathering and transportation station, and the second temperature information is the oil outlet temperature of the gathering and transportation station.
2. The oilfield gathering and transportation station arrival pressure relief device as defined in claim 1, further comprising:
the fault detection control module is used for receiving a feedback signal of the pressure regulating valve (1), sending a bypass pipeline valve opening signal and sending a pressure regulating valve (1) inlet valve closing signal if the feedback signal is interrupted or the feedback signal is error information, wherein the feedback signal of the pressure regulating valve (1) is a signal which is arranged in the pressure regulating valve (1) and used for detecting the running state of the pressure regulating valve (1) and sent by a running state sensor;
and the alarm module is used for controlling the alarm to send an alarm signal when the feedback signal is not provided with a signal or is an error message.
3. An oilfield gathering station access pressure relief device as recited in claim 1 wherein said method comprises:
step 1: the first receiving comparison module receives first pressure information, compares the first pressure information with a preset pressure value in the first receiving comparison module to obtain a ratio parameter, wherein the preset pressure value in the first receiving comparison module is the maximum value of the pressure of the oil pipeline conveyed to a downstream pipeline, and the first pressure information is the pressure measured by a first pressure transmitter at the oil inlet of the gathering and conveying station;
step 2: the gradient instruction module obtains the parameters and brings the parameters into a gradient instruction set preset in the gradient instruction module, the parameters are compared in the gradient instruction set to obtain the interval position of the parameters in the gradient instruction set, the instruction corresponding to the interval position is obtained, and each gradient of the gradient instruction set is provided with an instruction for controlling the pre-opening degree of the pressure regulating valve (1);
step 3: the control module acquires the instruction and controls the pressure regulating valve (1) through the instruction;
the control module acquires the instruction and before the pressure regulating valve (1) is controlled by the instruction, the control module further comprises:
step 2.1: the second receiving and comparing module receives second pressure information, compares the second pressure information with a preset pressure value of the second receiving and comparing module, and if the second pressure information exceeds the preset pressure value of the second receiving and comparing module, the step 2.2 is carried out;
step 2.2: the forced down-regulating module is used for forcedly down-regulating the grade of the gradient corresponding to the parameter obtained by the ratio of the first pressure information to the preset pressure value in the first receiving comparison module until the second pressure information is smaller than the preset pressure value of the second receiving comparison module, wherein the second pressure information is the pressure measured by a second pressure transmitter at the oil outlet position of the gathering and outputting station;
the method further comprises the steps of:
step 4: the phase change monitoring module receives first temperature information and second temperature information, and determines phase change according to the second temperature information and the first temperature information, wherein the first temperature information is the oil inlet temperature of the gathering and transportation station, and the second temperature information is the oil outlet temperature of the gathering and transportation station.
4. A method of reducing the pressure at an oilfield gathering and transportation station as defined in claim 3, wherein the method further comprises:
step 5: the fault detection control module receives a feedback signal of the pressure regulating valve (1), and if the feedback signal is interrupted or the feedback signal is error information, a bypass pipeline valve opening signal and a pressure regulating valve (1) inlet valve closing signal are sent, wherein the pressure regulating valve (1) feedback signal is a signal which is arranged in the pressure regulating valve (1) and used for detecting the running state of the pressure regulating valve (1) and sent by a running state sensor;
and 6, when the alarm module acquires that the feedback signal is not provided with a signal or the feedback signal is an error message, controlling the alarm to send an alarm signal.
5. An oilfield gathering station access pressure relief system as defined in claim 1 wherein the oilfield gathering station access pressure relief device comprises:
the first pressure transmitter (3) is arranged at the oil inlet end of the gathering and transportation station;
the second pressure transmitter (17) is arranged at the oil outlet end of the gathering and transportation station;
the pressure regulating valve (1), the pressure regulating valve (1) and the first pressure transmitter (3) and the second pressure transmitter (17) are both positioned on one pipeline, and the pressure regulating valve (1) is arranged between the first pressure transmitter (3) and the second pressure transmitter (17);
the control module is electrically connected with the first pressure transmitter (3), the second pressure transmitter (17) and the pressure regulating valve (1); and the control module is used for executing the method for reducing the pressure of the entering of the oilfield gathering and transportation station according to claim 3 or 4 so as to adjust the pressure regulating valve (1).
6. An oilfield gathering and transmission station arrival pressure relief system as claimed in claim 5 wherein a filtration system is provided between said first pressure transmitter (3) and said pressure regulating valve (1);
the oil inlet end of the gathering and conveying station is provided with a first temperature transmitter (4), and the oil outlet end of the gathering and conveying station is provided with a second temperature transmitter (19);
the filter system is connected with a first filter (7) and a second filter (12) in parallel, and the first filter (7) and the second filter (12) are respectively connected to the pipeline;
the system further comprises a first valve (5), a first pressure gauge (6), a first filter (7), a first differential pressure alarm (8), a second valve (9), a third valve (10), a second pressure gauge (11), a second filter (12), a second differential pressure alarm (13), a fourth valve (14), a third pressure gauge (15), a first thermometer (16), a fourth pressure gauge (18), a second thermometer (20) and a fifth valve (21);
the circuit of the first filter (7) is connected with a first valve (5) and a second valve (9) in series, the first filter (7) is connected with a first differential pressure alarm (8) and a first pressure gauge (6) in parallel, and two ends of the first differential pressure alarm (8) are connected with two ends of the first filter (7);
a third valve (10), a third pressure gauge (15) and a fourth valve (14) are connected in series on the circuit of the second filter (12), the second filter (12) is connected with a second pressure gauge (11) and a second pressure difference alarm (13) in parallel, and two ends of the second filter (12) are connected with two ends of the second filter (12);
a first thermometer (16) is arranged at the inlet of the pressure regulating valve (1), and a second thermometer (20) is arranged at the inlet and outlet of the pressure regulating valve (1);
a fourth pressure gauge (18), a second thermometer (20) and a fifth valve (21) are connected in parallel on the tail pipeline of the pressure regulating valve (1);
the inlet and the outlet of the pipeline are connected with a bypass pipeline (23) and a sixth valve (22), the inlet of the pipeline is connected with the outlet of the pipeline through the bypass pipeline (23), and the bypass pipeline (23) is provided with the sixth valve (22) for controlling the opening and closing of the bypass pipeline;
the pressure regulating valve (1) is an angle regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237112.1A CN109812707B (en) | 2019-03-27 | 2019-03-27 | Method, device and system for reducing pressure of entering station of oilfield gathering and transportation station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237112.1A CN109812707B (en) | 2019-03-27 | 2019-03-27 | Method, device and system for reducing pressure of entering station of oilfield gathering and transportation station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109812707A CN109812707A (en) | 2019-05-28 |
| CN109812707B true CN109812707B (en) | 2024-03-01 |
Family
ID=66610617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910237112.1A Active CN109812707B (en) | 2019-03-27 | 2019-03-27 | Method, device and system for reducing pressure of entering station of oilfield gathering and transportation station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812707B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551153B (en) * | 2020-04-23 | 2023-07-25 | 中国石油天然气股份有限公司 | Control parameter determining method and device for pipeline oil transportation equipment, equipment and medium |
| CN115451329A (en) * | 2022-08-17 | 2022-12-09 | 广西电网有限责任公司百色供电局 | Automatic control SF 6 Charged air charging device for equipment |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776249A (en) * | 1972-07-14 | 1973-12-04 | Valve M Co | Pipeline flow control system and method |
| CN101551674A (en) * | 2009-05-13 | 2009-10-07 | 大连橡胶塑料机械股份有限公司 | Flow control system for temperature-control steam inlet and control method thereof |
| CN102305351A (en) * | 2011-08-29 | 2012-01-04 | 陶建科 | Pipe network pressure control system |
| AU2010295221A1 (en) * | 2009-09-16 | 2012-04-12 | Ignite Resources Pty Ltd | An assembly for reducing slurry pressure in a slurry processing system |
| CN202195276U (en) * | 2011-08-23 | 2012-04-18 | 特瑞斯信力(常州)燃气设备有限公司 | Intelligent wireless fuel gas pressure-regulating device |
| CN202228922U (en) * | 2011-03-18 | 2012-05-23 | 北京爱社时代科技发展有限公司 | Energy saving management unit for pipeline gas supply |
| CN202929496U (en) * | 2012-11-26 | 2013-05-08 | 上海电站辅机附件厂有限公司 | Power station auxiliary machine pressure guaranteeing system |
| CN203363677U (en) * | 2013-06-28 | 2013-12-25 | 上海大众祥源动力供应有限公司 | Compressed air high pressure to low pressure conversion control device |
| CN105698008A (en) * | 2016-02-24 | 2016-06-22 | 昆明理工大学 | Accelerated flow energy dissipation and energy feedback device of iron concentrate slurry pipeline and control method of device |
| CN105999830A (en) * | 2016-07-27 | 2016-10-12 | 西安长庆科技工程有限责任公司 | Intelligent differential pressure alarming filter device |
| CN109185702A (en) * | 2018-08-16 | 2019-01-11 | 北京航天石化技术装备工程有限公司 | A kind of process of depressurized system |
| CN208519518U (en) * | 2018-07-06 | 2019-02-19 | 山东浩泰天然气股份有限公司 | Level-one chamber type natural gas surge tank |
| CN109506131A (en) * | 2018-12-17 | 2019-03-22 | 中国石油工程建设有限公司 | A kind of associated gas treatment plant slug flow trapping system and method |
| CN209801158U (en) * | 2019-03-27 | 2019-12-17 | 西安长庆科技工程有限责任公司 | Station-entering pressure reduction system of oil field gathering and transportation station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180023360A1 (en) * | 2016-07-22 | 2018-01-25 | Saudi Arabian Oil Company | Wellhead flowline protection system |
-
2019
- 2019-03-27 CN CN201910237112.1A patent/CN109812707B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776249A (en) * | 1972-07-14 | 1973-12-04 | Valve M Co | Pipeline flow control system and method |
| CN101551674A (en) * | 2009-05-13 | 2009-10-07 | 大连橡胶塑料机械股份有限公司 | Flow control system for temperature-control steam inlet and control method thereof |
| AU2010295221A1 (en) * | 2009-09-16 | 2012-04-12 | Ignite Resources Pty Ltd | An assembly for reducing slurry pressure in a slurry processing system |
| CN202228922U (en) * | 2011-03-18 | 2012-05-23 | 北京爱社时代科技发展有限公司 | Energy saving management unit for pipeline gas supply |
| CN202195276U (en) * | 2011-08-23 | 2012-04-18 | 特瑞斯信力(常州)燃气设备有限公司 | Intelligent wireless fuel gas pressure-regulating device |
| CN102305351A (en) * | 2011-08-29 | 2012-01-04 | 陶建科 | Pipe network pressure control system |
| CN202929496U (en) * | 2012-11-26 | 2013-05-08 | 上海电站辅机附件厂有限公司 | Power station auxiliary machine pressure guaranteeing system |
| CN203363677U (en) * | 2013-06-28 | 2013-12-25 | 上海大众祥源动力供应有限公司 | Compressed air high pressure to low pressure conversion control device |
| CN105698008A (en) * | 2016-02-24 | 2016-06-22 | 昆明理工大学 | Accelerated flow energy dissipation and energy feedback device of iron concentrate slurry pipeline and control method of device |
| CN105999830A (en) * | 2016-07-27 | 2016-10-12 | 西安长庆科技工程有限责任公司 | Intelligent differential pressure alarming filter device |
| CN208519518U (en) * | 2018-07-06 | 2019-02-19 | 山东浩泰天然气股份有限公司 | Level-one chamber type natural gas surge tank |
| CN109185702A (en) * | 2018-08-16 | 2019-01-11 | 北京航天石化技术装备工程有限公司 | A kind of process of depressurized system |
| CN109506131A (en) * | 2018-12-17 | 2019-03-22 | 中国石油工程建设有限公司 | A kind of associated gas treatment plant slug flow trapping system and method |
| CN209801158U (en) * | 2019-03-27 | 2019-12-17 | 西安长庆科技工程有限责任公司 | Station-entering pressure reduction system of oil field gathering and transportation station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109812707A (en) | 2019-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8327874B2 (en) | Apparatus for wellhead high integrity protection system | |
| CA2702894C (en) | Wellhead flowline protection and testing system with esp speed controller and emergency isolation valve | |
| CN109812707B (en) | Method, device and system for reducing pressure of entering station of oilfield gathering and transportation station | |
| US8725434B2 (en) | Wellhead hips with automatic testing and self-diagnostics | |
| US11506006B2 (en) | Control valve systems and methods for blowout of sand separation device and high integrity pressure protection | |
| CN102337868A (en) | Automatic control system and method for offshore production platform | |
| CN103221634A (en) | Clustered wellhead trunkline protection and testing system with ESP speed controller and emergency isolation valve | |
| CN117213894B (en) | Abnormal operation monitoring system for ocean engineering equipment | |
| US11377947B2 (en) | Safety variable frequency drive for preventing over pressurization of a piping network | |
| CN209801158U (en) | Station-entering pressure reduction system of oil field gathering and transportation station | |
| CN109375575A (en) | A kind of band-type brake control method and system | |
| CN202756726U (en) | Gas-liquid linkage block valve control system on oil-gas transmission pipeline | |
| CN104633457A (en) | Real-time online cavitation monitoring and warning system and real-time online cavitation monitoring and warning method for regulating valve of thermal power station | |
| CN102155622A (en) | High pressure regulation tank of compressed natural gas supply station and pressure regulation and gas supply method thereof | |
| CN101787969B (en) | Numerical control system of minimum flow valve of governing feedwater pump and minimum flow control method thereof | |
| CN103867775A (en) | Large tank farm pipeline emergency cut-off system | |
| CN207005750U (en) | A kind of oil recovery pipe-line transportation system | |
| EP2651724A1 (en) | Apparatus and method for clustered wellhead high integrity protection system | |
| CN106759779B (en) | A kind of online blowdown apparatus and online method for discharging pollution applied to gas pipeline yard | |
| CN210514303U (en) | Intelligent double-insurance carrier-gas-free online monitoring device for dissolved gas in oil | |
| CN210977413U (en) | Pressure-control gas lift control system | |
| CN102864255A (en) | Safety control method for blast furnace minter process slag treatment granulation water supply system | |
| CN109856187B (en) | Online real-time detection method for hydrocarbon dew point of gas pipeline | |
| CN1234959C (en) | Electric and gas dual controlled safety cut-off device on high pressure oil and gas well top | |
| CN106958740A (en) | Oil pipeline tele-control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201030 Address after: 710018 Shaanxi province Xi'an Weiyang road Fengcheng four Changqing building Applicant after: XI'AN CHANGQING TECHNOLOGY ENGINEERING Co.,Ltd. Applicant after: CHINA NATIONAL PETROLEUM Corp. Address before: 710018 Shaanxi province Xi'an Weiyang road Fengcheng four Changqing building Applicant before: XI'AN CHANGQING TECHNOLOGY ENGINEERING Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |