CN111275936A - A safety protection monitoring system and method for underwater oilfield facilities - Google Patents

Abstract

The invention provides a safety protection monitoring system and a method thereof for an underwater oilfield facility, wherein the monitoring system comprises a safety protection monitoring subsystem, a risk assessment early warning subsystem and a data processing terminal, the safety protection monitoring subsystem monitors the loss condition of the underwater oilfield facility in real time, and the safety protection monitoring subsystem transmits monitoring data to the risk assessment early warning subsystem, the risk assessment early warning subsystem compares and analyzes the monitoring data and then sends abnormal data to the data processing terminal, the data processing terminal converts the abnormal data into digital display signals and outputs the digital display signals to a display terminal, the underwater oil field is monitored in real time through the safety protection monitoring subsystem, corresponding data are obtained, and further, the timing inspection work of operators is replaced, and the working strength of the operators is reduced.

Description

A safety protection monitoring system and method for underwater oilfield facilities

technical field

The invention relates to the technical field of underwater monitoring, in particular to a safety protection monitoring system and a method for underwater oilfield facilities.

Background technique

The development of oilfields in the deep sea is the development trend of the oilfield development industry, and the pipelines and equipment laid in the deep sea cannot be inspected and repaired, so the underwater equipment and pipelines need to be inspected regularly with equipment, which brings a lot of work to the staff. At the same time, regular inspections cannot detect equipment abnormalities in time, that is, when the equipment in the underwater oilfield is abnormal, the operators cannot know it in time. Therefore, a real-time detection system for the safety of the operation of underwater equipment urgently needs to be developed and put into use.

SUMMARY OF THE INVENTION

The invention provides a safety protection monitoring system for underwater oilfield facilities that can detect the running state of underwater equipment in real time:

The technical scheme adopted by the present invention to solve the technical problem is as follows: a safety protection monitoring system for underwater oilfield facilities. The monitoring system includes a safety protection monitoring subsystem, a risk assessment and early warning subsystem, and a data processing terminal. The safety protection monitoring subsystem monitors the loss of underwater oilfield facilities in real time, and sorts out relevant monitoring data. The system sends the monitoring data to the risk assessment and early warning subsystem, and the risk assessment and early warning subsystem compares and analyzes the monitoring data and sends the abnormal data to the data processing terminal, and the data processing terminal The abnormal data is converted into a digital display signal and output to the display terminal.

Further, the safety protection monitoring subsystem includes an internal corrosion monitoring module and an external corrosion monitoring module, and the internal corrosion monitoring module and the external corrosion monitoring module are both arranged on the wellhead manifold and the submarine pipeline, so The internal corrosion monitoring module is also installed on the wellbore, and the internal corrosion monitoring module and the external corrosion monitoring module perform real-time monitoring on the corrosion of the inner and outer side walls of the underwater oilfield facility.

Further, the safety protection monitoring subsystem includes a load/deformation monitoring module and a leakage monitoring module, and the load/deformation monitoring module performs real-time monitoring on whether excessive deformation occurs in the sidewall of the underwater oilfield facility, and the load/deformation monitoring module performs real-time monitoring on whether excessive deformation occurs in the sidewall of the underwater oilfield facility. A deformation monitoring module is mounted on the riser.

Further, the safety protection monitoring subsystem includes a leakage monitoring module, and the leakage monitoring module further includes a sonar device corresponding to the rotation of the underwater oilfield facility. An analysis is performed to determine whether a leakage occurs in the facility, and the leakage monitoring module is also installed on the wellhead manifold and the subsea pipeline.

Further, the safety protection monitoring subsystem includes a displacement monitoring module, and the displacement monitoring module monitors the position change of the underwater oilfield facility in real time, and the displacement monitoring module is arranged on the submarine pipeline.

Further, the displacement monitoring module includes a fiber grating sensor corresponding to the underwater oil field facility, the sensing end of the fiber grating sensor is fixedly installed on the underwater oil field facility, and the contact end of the fiber grating sensor is fixed on the underwater oil field facility. Set away from the sensing end.

Further, the safety protection monitoring subsystem includes an anti-collision monitoring module and an environmental monitoring module, the environmental monitoring module is installed on the wellhead manifold and the oil and gas water treatment equipment, and the environmental monitoring module can be targeted. The meteorological conditions around the equipment are monitored, the anti-collision module monitors the deformation degree of the buffer layer in the underwater oilfield facility in real time, and the anti-collision monitoring module is installed on the riser.

Further, the buffer layer is sleeved on the outer wall of the facility and is a protective layer made of rubber or sponge, and the anti-collision monitoring module monitors the deformation degree of the protective layer in real time.

Further, the risk assessment and early warning subsystem includes a receiving device, an analysis device and a communication device, the receiving device integrates and temporarily stores the real-time monitoring data of the security protection monitoring subsystem, and the analyzing device is responsible for the data in the receiving device. The monitoring data is compared and analyzed, and the communication device can transmit the abnormal data to the data processing terminal.

A safety protection monitoring method for underwater oilfield facilities, applied to any of the above-mentioned underwater oilfield facilities safety protection monitoring systems, the method comprises the following steps:

Step 1: use the safety protection monitoring subsystem to monitor the equipment of the underwater oil field in real time, and collect monitoring data;

Step 2: use the risk assessment and early warning subsystem to temporarily store and analyze the monitoring data in step 1, select abnormal data, and send the abnormal data to the data processing terminal;

Step 3: Use the data processing terminal to convert the abnormal data to the monitoring personnel in a visual form.

The beneficial effect of the invention is that, through the real-time monitoring of the underwater oilfield by the safety protection monitoring subsystem, the loss of the underwater oilfield facilities can be converted into detection data and reflected in the risk assessment and early warning analysis system in time. In the system, the detection data can be compared and analyzed, and the abnormal data obtained by the comparison and analysis can be sent to the data processing terminal for the operator to judge the abnormal position in the underwater oil field. The oil field is monitored in real time, and the monitoring data is compared and analyzed with the help of the risk assessment and early warning system. The process of collecting and analyzing data can replace the regular inspection work of the staff, reduce the work intensity of the staff, and improve the timeliness of abnormal detection.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the composition topology diagram of the underwater oilfield facility safety protection monitoring system of the present invention;

Fig. 2 is the flow chart of the underwater oilfield facility safety protection monitoring system method of the present invention;

In the picture:

Security monitoring subsystem 101 Risk assessment and early warning subsystem 102 Data processing terminal 103

Internal corrosion monitoring module 111 External corrosion monitoring module 112 Displacement monitoring module 113

Load/Deformation Monitoring Module 114 Anti-collision Monitoring Module 115 Leak Monitoring Module 116

Environmental monitoring module 117 Receiving device 121 Analysis device 122

Communication equipment 123

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention. On the contrary, embodiments of the present invention include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

As shown in FIG. 1 , the present invention provides a safety protection monitoring system for underwater oilfield facilities to monitor the operation status of underwater oilfields in real time. The detection system includes a safety protection monitoring subsystem 101 and a risk assessment and early warning subsystem 102 And the data processing terminal 103 .

The safety protection monitoring subsystem 101 monitors the facilities of the underwater oilfield in real time, and transmits the monitoring data to the risk assessment and early warning subsystem 102. After the risk assessment and early warning subsystem 102 compares, selects abnormal data and outputs it to data processing On the terminal 103, after being processed by the data processing terminal 103, it is converted into a digital display signal and output to the screen for reference by the inspector when inspecting the device. Since the monitoring process of the equipment by the safety protection detection subsystem is carried out in real time, and the data is also uploaded to the risk assessment and early warning subsystem 102 in real time, the abnormality of the underwater oilfield facilities can be detected in time, thereby replacing the regular inspection of the staff and reducing the Work intensity of staff.

Specifically, the safety protection monitoring subsystem 101 is installed on the facilities of the underwater oilfield. The facilities of the underwater oilfield include wellbore, wellhead manifold, riser, submarine pipeline and offshore oil and gas water treatment equipment. The safety protection monitoring system The subsystem 101 includes an internal corrosion monitoring module 111, an external corrosion monitoring module 112, a displacement monitoring module 113, a load/deformation monitoring module 114, an anti-collision monitoring module 115, a leakage monitoring module 116, and an environmental monitoring module 117. The internal corrosion monitoring module 111, The external corrosion monitoring module 112, the displacement monitoring module 113, the load/deformation monitoring module 114, the anti-collision monitoring module 115, the leakage monitoring module 116 and the environmental monitoring module 117 are set in the sea, so the above-mentioned preparations all use a working pressure of 0 to 35 MPa, and a working temperature of 0 to 35 MPa. Equipment with a range of -30 to 120°C. Preferably, an internal corrosion monitoring module 111 is installed in the wellbore, an internal corrosion monitoring module 111, an external corrosion monitoring module 112, a leakage monitoring module 116 and an environmental monitoring module 117 are installed in the wellhead manifold, and an internal corrosion monitoring module 117 is installed on the submarine pipeline. Corrosion monitoring module 111, external corrosion monitoring module 112, displacement monitoring module 113 and leakage monitoring module 116, load/deformation monitoring module 114, anti-collision monitoring module 115, leakage monitoring module 116 and environment monitoring module 117 are installed on the riser, An environmental monitoring module 117 is installed on the oil and gas water treatment equipment.

More specifically, the internal corrosion monitoring module 111 is installed on the inner wall of the pipeline equipment in the underwater oil field. The internal corrosion monitoring module 111 can use the resistance probe technology, the inductance probe technology, or the linear polarization probe technology. Needle technology, ultrasonic thickness measurement technology, and full circumferential corrosion monitoring technology can also be used. In this embodiment, ultrasonic thickness measurement technology is preferred. The detection area is divided in the axial direction, and the degree of concavity and convexity of the inner wall surface of the wellbore can be determined by the return time of the ultrasonic wave.

More specifically, the external corrosion monitoring module 112 is installed on the outer wall of the pipeline equipment in the underwater oil field. The external corrosion monitoring module 112 can adopt the resistance probe technology or the cathodic protection online monitoring technology. In this embodiment, the resistance is preferred. Probe technology, there are at least two conductive probes, one of which is fixed on the outer wall of the device, and continues to emit current to the outer wall of the device, and the probe corresponding to the fixed probe moves along the axial direction of the device, moving the probe The current of the fixed probe is received at any time, and the resistance of the outer wall of the device is determined according to the current consumption. The resistance can be combined with the distance between the two probes to calculate the wall thickness of the side wall between the two probes.

The displacement monitoring module 113, the load/deformation monitoring module 114, the anti-collision monitoring module 115 and the leakage monitoring module 116 are installed on the outer wall of the pipeline equipment in the underwater oil field. The displacement monitoring module 113 can monitor the position of the pipeline equipment in real time. Preferably, the displacement monitoring module 113 is composed of a plurality of fiber grating sensors. The model of the fiber grating sensor is OSC3100. The fiber grating sensors are evenly spaced along the axial direction of the device. The sensing end of the fiber grating sensor is fixedly installed on the device. The contact end of the grating sensor is set away from the sensing end along the radial direction of the device. When the device is displaced at the bottom of the water, the distance between the sensing end and the contact end changes, and the amount of deformation generated by the optical fiber between the two ends changes. is the set displacement. The load/deformation monitoring module 114 can monitor the cross-sectional shape of the equipment in real time. The load/deformation monitoring module 114 includes a pressure sensor fitted on the side wall of the equipment. The model of the pressure sensor is: PT124G-214. The monitoring end of the pressure sensor Interspersed into the side wall of the equipment, the detection end of the pressure sensor can monitor the pressure on the inner wall of the equipment in real time, and then judge whether the medium in the equipment is accumulated. The anti-collision monitoring module 115 adopts anti-collision monitoring technology. Specifically, a corresponding buffer layer is provided on the outer side wall of the device. The buffer layer can be composed of sponge or rubber. In this embodiment, it is preferably rubber. The anti-collision detection module It includes a pressure sensor installed between the outer wall of the pipeline and the buffer layer. The pressure sensor is the same model as the pressure sensor in the load/deformation monitoring module 114. The pressure sensor monitors the deformation degree of the buffer layer in real time, and then can judge Whether the device has been impacted by underwater life.

The leakage monitoring module 116 includes a sonar device that can move relative to the equipment. The movement process of the sonar device relative to the equipment is that the sonar device first rotates around the outer wall of the equipment, and after one rotation, moves along the axial direction of the equipment, that is, along the axial direction of the equipment. The liquid composition outside the equipment is monitored, and the penetration time of the sound wave to the water is judged according to the return time of the sound wave in the sonar device, so as to determine whether the liquid composition around the equipment has changed.

More specifically, the environmental monitoring module 117 is arranged on the oil and gas water treatment equipment of the underwater oil field and on the side wall of the riser extending out of the water surface. The environmental monitoring module can monitor the atmospheric pressure, temperature, wind speed, wind direction, visibility, wave The environmental factors such as height and wave direction are detected in real time. Since the detection device and detection method of the environmental monitoring module 117 can refer to the detection device and detection method of marine weather, the specific detection method will not be repeated in this embodiment.

The risk assessment and early warning subsystem 102 includes a receiving device 121 , an analysis device 122 and a communication device 123 arranged on the water. The internal corrosion monitoring module 111 , the external corrosion monitoring module 112 , the displacement monitoring module 113 , the load/deformation monitoring module 114 , the anti-collision monitoring module 115 , the leakage monitoring module 116 and the environmental monitoring module 117 are all electrically connected to the receiving device 121 , The receiving device 121 can receive the electrical signals transmitted in the security protection detection subsystem, and convert all the electrical signals into detection data for temporary storage. The analysis device 122 can set corresponding thresholds for various types of detection data. The stored detection data is compared with the threshold. When the detection data is within the threshold, the detection data temporarily stored in the receiving device 121 is deleted. When the detection data exceeds the threshold, it is determined as abnormal data, and the abnormal data is sent to In the communication device 123, the communication device 123 sends the abnormal data to the data processing terminal 103, and the data terminal converts the received electrical signal into a digital display signal and displays it on the display device.

Specifically, the receiving device 121 includes a processor and a server, the detection signal is translated into a data signal by the processor, and the data signal is temporarily stored in the server. The analyzing device 122 may be a computer or a single-chip microcomputer, and in this embodiment, it is preferably a computer , corresponding comparison analysis software is installed in the computer, the comparison analysis software can compare the threshold value and the detection data, and send the abnormal data to the data terminal. The specific comparison process in this embodiment is not repeated in this embodiment.

The data processing terminal 103 is also preferably a computer. After receiving the abnormal data, the data processing terminal 103 converts the abnormal data into a data signal and displays it for the operator to check and reference.

As shown in Figure 2, the using method of above-mentioned underwater oilfield facility safety protection monitoring system may further comprise the steps:

Step 1: use the safety protection monitoring subsystem 101 to carry out real-time monitoring to the equipment of the underwater oil field, and collect monitoring data;

Specifically: the internal corrosion monitoring module 111 determines the degree of concavity and convexity on the surface of the inner wall of the wellbore through the return time of the ultrasonic wave, the external corrosion monitoring module 112 monitors the wall thickness of pipeline equipment in real time, and the displacement detection module detects the position of the underwater facility in real time. , the load/deformation monitoring module 114 detects the pressure bearing degree of the inner wall of the equipment in real time, the anti-collision monitoring module 115 detects the deformation degree of the buffer layer, and the leakage monitoring module 116 detects whether there is a leakage gap in the side wall of the equipment.

Step 2: Use the risk assessment and early warning subsystem 102 to assess the degree of concavity and convexity of the outer sidewall of the equipment collected in step 1, the wall thickness of the equipment, the location of the underwater facilities, the degree of pressure on the inner wall of the equipment, the degree of deformation of the buffer layer, and the leakage gap. The monitoring data such as the location and other monitoring data are temporarily stored and analyzed, specifically:

The receiving device 121 is used to classify and temporarily store the above monitoring data, and the analysis device 122 is used to conduct targeted comparison and analysis of the monitoring data. If abnormal data occurs, the abnormal data is sent to the data processing terminal 103 through the communication device 123.

Step 3: After the data processing terminal 103 receives the data in Step 2, it converts it into a readable signal to respond to the monitoring personnel, and the monitoring personnel maintain the equipment of the underwater oil field according to the abnormal data.

The technical effect of this embodiment is that the real-time detection of the underwater oilfield facilities by the safety protection detection subsystem can realize the real-time monitoring of the whole facility, which can replace the interval inspection of the underwater oilfield facilities by the monitoring personnel, thereby reducing the work of the operators. Intensity, and real-time monitoring can reflect equipment abnormalities to the terminal in a timely manner, which can prevent operators from being unable to discover in time when equipment abnormalities occur.

Taking the above ideal embodiments according to the present invention as inspiration, and through the above description, relevant personnel can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the contents in the specification, and the technical scope must be determined according to the scope of the claims.

Claims (10)

1. an underwater oilfield facility safety protection monitoring system, described underwater oilfield facility comprises wellbore facility, wellhead manifold, submarine pipeline, riser and oil and gas water treatment equipment, it is characterized in that: described monitoring system comprises safety protection monitoring A subsystem, a risk assessment and early warning subsystem, and a data processing terminal, the safety protection monitoring subsystem monitors the wear and tear of underwater oilfield facilities in real time, and sorts out relevant monitoring data, and the safety protection monitoring subsystem sends the monitoring data to the In the risk assessment and early warning subsystem, the risk assessment and early warning subsystem compares and analyzes the monitoring data and sends the abnormal data to the data processing terminal, and the data processing terminal converts the abnormal data into The digital display signal is output to the display terminal. 2. An underwater oilfield facility safety protection monitoring system according to claim 1, wherein the safety protection monitoring subsystem comprises an internal corrosion monitoring module and an external corrosion monitoring module, the internal corrosion monitoring module and all The external corrosion monitoring modules are all arranged on the wellhead manifold and the submarine pipeline, and the internal corrosion monitoring module is also installed on the wellbore. Corrosion of the inner and outer walls of the facility is monitored in real time. 3. An underwater oilfield facility safety protection monitoring system according to claim 1, characterized in that: the safety protection monitoring subsystem comprises a load/deformation monitoring module and a leakage monitoring module, and the load/deformation monitoring module is a pair of Whether excessive deformation occurs in the sidewall of the underwater oilfield facility is monitored in real time, and the load/deformation monitoring module is installed on the riser. 4. An underwater oilfield facility safety protection monitoring system according to claim 1, characterized in that: the safety protection monitoring subsystem comprises a leakage monitoring module, and the leakage monitoring module further comprises a corresponding underwater oilfield facility The sonar device that is arranged in rotation, the sonar device analyzes the liquid composition around the underwater oilfield facility, thereby judging whether the facility leaks, and the leak monitoring module is also installed on the wellhead manifold and the submarine pipeline . 5 . The safety protection monitoring system for underwater oilfield facilities according to claim 1 , wherein the safety protection monitoring subsystem comprises a displacement monitoring module, and the displacement monitoring module measures the position of the underwater oilfield facility. 6 . Changes are monitored in real time, and the displacement monitoring module is arranged on the submarine pipeline. 6 . The safety protection monitoring system for underwater oilfield facilities according to claim 4 , wherein the displacement monitoring module comprises a fiber grating sensor corresponding to the underwater oilfield facility, and the sensing The end is fixedly installed on the underwater oilfield facility, and the contact end of the fiber grating sensor is arranged away from the sensing end. 7. An underwater oilfield facility safety protection monitoring system according to claim 1, wherein the safety protection monitoring subsystem comprises an anti-collision monitoring module and an environmental monitoring module, and the environmental monitoring module is installed on the On the wellhead manifold and the oil, gas and water treatment equipment, the environmental monitoring module can monitor the meteorological conditions around the equipment in a targeted manner, and the anti-collision module monitors the deformation degree of the buffer layer in the underwater oilfield facility in real time. A monitoring module is mounted on the riser. 8 . The safety protection monitoring system for underwater oilfield facilities according to claim 6 , wherein the buffer layer is sleeved on the outer wall of the facility, and the protective layer is made of rubber or sponge. The collision monitoring module monitors the deformation degree of the protective layer in real time. 9. An underwater oilfield facility safety protection monitoring system according to claim 1, characterized in that: the risk assessment and early warning subsystem comprises receiving equipment, analysis equipment and communication equipment, and the receiving equipment integrates and temporarily stores the For the real-time monitoring data of the security protection monitoring subsystem, the analysis device compares and analyzes the monitoring data in the receiving device, and the communication device can transmit the abnormal data to the data processing terminal. 10. An underwater oilfield facility safety protection monitoring method, applied to a kind of underwater oilfield facility safety protection monitoring system described in any one of claims 1 to 9, is characterized in that: the method comprises the following steps: Step 1: use the safety protection monitoring subsystem to monitor the equipment of the underwater oil field in real time, and collect monitoring data; Step 2: use the risk assessment and early warning subsystem to temporarily store and analyze the monitoring data in step 1, select abnormal data, and send the abnormal data to the data processing terminal; Step 3: Use the data processing terminal to convert the abnormal data to the monitoring personnel in a visual form.

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