Oilfield safety equipment fault early warning system and method based on remote monitoring

Abstract

The application provides a remote monitoring-based offshore oil safety equipment fault early warning system and method. A mounting chamber is arranged in the housing of the blowout preventer, and a detection assembly is arranged in the mounting chamber. The movement of the blowout preventer ram can be detected in time, and an abnormal ram action alarm is sent when the movement of the ram is abnormal. A pressure gauge and a hydraulic oil granularity detector are arranged on the oil cylinder of the blowout preventer. The working state of the hydraulic oil in the oil cylinder can be detected, and an abnormal hydraulic oil alarm is sent when the hydraulic oil works abnormally. The working state of the blowout preventer can be remotely monitored, the safety of the blowout preventer is ensured, and the problem that the existing blowout preventer is prone to failure, but the staff cannot find it in time, thereby causing safety accidents can be solved.

Description

Technical Field

[0001] This invention relates to the field of offshore oil exploration technology, and in particular to an early warning system and method for offshore oil safety equipment failure based on remote monitoring. Background Technology

[0002] Blowout preventers (BOPs) are used to close the wellhead during operations such as well testing, well workover, and well completion to prevent blowout accidents. They combine the functions of full sealing and partial sealing into one unit and are characterized by simple structure, easy operation, and high pressure resistance. They are commonly used safety sealing devices for preventing blowouts in oilfields.

[0003] During the use of blowout preventers (BOPs), they often fail due to various reasons, such as corrosion, aging, and leakage. This is especially true in offshore oil and gas extraction, where the working environment of BOPs is harsh (usually on the seabed), making them prone to failure. However, workers may not be able to detect these failures in time, leading to safety accidents. Summary of the Invention

[0004] This application provides a remote monitoring-based early warning system and method for safety equipment failure in offshore oil and gas, which can solve the problem that existing blowout preventers are prone to failure, but the staff cannot detect it in time, thus leading to safety accidents.

[0005] In a first aspect, embodiments of this application provide a fault early warning system for offshore oil safety equipment based on remote monitoring, characterized in that the offshore oil safety equipment is a blowout preventer for underwater use, comprising:

[0006] The installation chamber is located inside the blowout preventer housing;

[0007] A detection component, located in the installation chamber, is used to detect the movement of the blowout preventer gate.

[0008] A pressure gauge is installed on the hydraulic cylinder of the blowout preventer;

[0009] A hydraulic oil particle size analyzer is installed inside the oil cylinder to detect the composition of the hydraulic oil inside the oil cylinder;

[0010] In monitoring mode, the movement of the gate is detected by the detection component, and a gate movement abnormality alarm is issued when the movement of the gate is abnormal. The hydraulic oil working condition in the cylinder is detected by the pressure gauge and the hydraulic oil particle size detector, and a hydraulic oil abnormality alarm is issued when the hydraulic oil working condition is abnormal.

[0011] In some embodiments, the detection component includes:

[0012] A sensor, located in the installation chamber, is used to detect the movement of the blowout preventer gate.

[0013] A radiation detector, located in the installation room and connected to the rotating device, is used to perform radiation inspection on the blowout preventer.

[0014] In some embodiments, the offshore oil safety equipment fault early warning system based on remote monitoring further includes a petroleum component analyzer and a mud component analyzer. The petroleum component analyzer is used to detect the oil and gas components in the well, and the mud component analyzer is used to detect the mud components in the well.

[0015] In some embodiments, the offshore oil safety equipment fault early warning system based on remote monitoring further includes a winding device and multiple ocean current detectors. The winding device is installed on the anchor chain of the offshore oil platform and is used to wind up or unwind the anchor chain based on the ocean current information detected by the ocean current detectors. The multiple ocean current detectors are located at different depths below the sea level.

[0016] Secondly, embodiments of this application provide a method for early warning of faults in offshore oil safety equipment based on remote monitoring, characterized in that it is applied to the offshore oil safety equipment fault warning system based on remote monitoring as described in any one of the first aspects, comprising:

[0017] The movement of the gate is detected by the detection component to obtain the gate movement status. If the gate movement status is abnormal, an alarm for abnormal gate movement is issued.

[0018] The hydraulic oil working pressure is obtained by detecting the pressure of the hydraulic oil in the cylinder using the pressure gauge.

[0019] If the hydraulic oil working pressure exceeds the preset pressure range, an abnormal hydraulic oil working pressure alarm will be issued.

[0020] The composition of the hydraulic oil in the cylinder is detected by the hydraulic oil particle size analyzer to obtain the working composition of the hydraulic oil;

[0021] If the working components of the hydraulic oil exceed the preset range, an alarm for abnormal hydraulic oil working components will be issued.

[0022] In some embodiments, the gate movement status includes the gate movement speed and the gate movement position, and the gate movement abnormality alarm includes a gate speed abnormality alarm and a gate position abnormality alarm.

[0023] The detection component detects the movement of the gate to obtain the gate's movement status. If the gate's movement is abnormal, a gate movement abnormality alarm is issued, including:

[0024] The movement of the gate is detected by a sensor, and the speed and position of the gate are obtained.

[0025] If the speed of the gate is less than the upper limit of the speed, an alarm for abnormal gate speed will be issued.

[0026] If the gate's movement position does not reach the preset movement position, an alarm for abnormal gate position will be issued.

[0027] In some embodiments, the method for early warning of faults in offshore safety equipment based on remote monitoring further includes:

[0028] The X-ray inspection instrument is rotated by a rotating device, and the blowout preventer is inspected by the X-ray inspection instrument to obtain the X-ray inspection result;

[0029] If the X-ray detection result exceeds the preset working condition, an X-ray detection abnormality alarm will be issued.

[0030] In some embodiments, the method for early warning of faults in offshore safety equipment based on remote monitoring further includes:

[0031] The composition of petroleum in the well is detected using a petroleum composition analyzer;

[0032] The composition of the mud in the well was detected using a mud composition analyzer.

[0033] The remaining service life of the gate when its movement speed drops to the lower limit is assessed based on the oil composition, and / or the mud composition and the X-ray detection results.

[0034] In some embodiments, the method for early warning of faults in offshore safety equipment based on remote monitoring further includes:

[0035] Multiple ocean currents at different depths below sea level were detected using multiple ocean current detectors.

[0036] The displacement of the offshore platform due to the ocean currents is obtained based on the ocean current conditions described in multiple places;

[0037] The anchor chain to be wound is determined based on the applied displacement, and the anchor chain to be wound is wound up by a winding device.

[0038] In some embodiments, obtaining the displacement of the offshore platform caused by the ocean currents based on the ocean current conditions at multiple locations includes:

[0039] Based on the ocean current conditions described in multiple locations, the anchor chain force exerted by the ocean current on the anchor chain and the platform force exerted by the offshore platform are obtained.

[0040] The applied displacement is obtained based on the anchor chain force and the platform force.

[0041] Compared with the prior art, the advantages of this application embodiment are that by setting an installation chamber inside the blowout preventer housing and installing a detection component inside the installation chamber, the movement of the blowout preventer gate can be detected in a timely manner, and an alarm for abnormal gate movement can be issued when the movement of the gate is abnormal; by setting a pressure gauge and a hydraulic oil particle size analyzer on the blowout preventer cylinder, the normal operation of the hydraulic oil in the cylinder can be detected, and an alarm for abnormal hydraulic oil operation can be issued when the hydraulic oil operation is abnormal, enabling remote monitoring of the working status of the blowout preventer, ensuring the safe use of the blowout preventer, and solving the problem that existing blowout preventers are prone to failure, which is often not detected by operators in time, leading to safety accidents. Attached Figure Description

[0042] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0043] Figure 1 This is a schematic diagram of a blowout preventer structure provided in an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of a marine platform provided in an embodiment of the present invention;

[0045] Figure 3 This is a flowchart of a method for early warning of faults in offshore oil safety equipment based on remote monitoring, provided by an embodiment of the present invention. Detailed Implementation

[0046] The invention will now be further described with reference to the accompanying drawings.

[0047] During oil drilling, a blowout preventer (BOP) is installed on the wellhead casing head to control the blowout of high-pressure oil, gas, and water. When the oil and gas pressure inside the well is very high, the BOP can seal the wellhead (shut it down). When heavy mud is injected from the drill pipe, there is a four-way valve under its gate, which can replace the mud that has been invaded by gas, increasing the pressure of the fluid column inside the well to suppress the ejection of high-pressure oil and gas.

[0048] Blowout preventers (BOPs) are the most important well control devices, playing a crucial role in drilling, especially in underbalanced drilling. The purpose of designing BOPs is to close the wellbore under pressure, maintain continuous control of the well, and circulate the formation fluids that have entered the well.

[0049] As the most important well control safety equipment, the blowout preventer (BOP) needs to be activated quickly to shut down the well in case of emergencies such as overflow, kick, or blowout during drilling operations. If the BOP fails at this time, it will lead to serious accidents such as blowout. The working environment of the BOP is relatively harsh (usually on the seabed), which makes the BOP prone to failure, and the staff may not be able to detect it in time, thus leading to safety accidents.

[0050] Firstly, such as Figure 1 , Figure 2 As shown, this application embodiment provides a fault early warning system for offshore oil safety equipment based on remote monitoring. The offshore oil safety equipment is a blowout preventer 10 for underwater use, comprising:

[0051] The installation chamber 120 is located inside the housing 110 of the blowout preventer 10;

[0052] A detection component, located within the installation chamber 120, is used to detect the movement of the blowout preventer 10 gate 130.

[0053] A pressure gauge is installed on the hydraulic cylinder 140 of the blowout preventer 10;

[0054] A hydraulic oil particle size analyzer is installed inside the oil cylinder 140 to detect the composition of the hydraulic oil inside the oil cylinder 140.

[0055] In the monitoring state, the movement of the gate 130 is detected by the detection component, and an alarm for abnormal gate 130 movement is issued when the movement of the gate 130 is abnormal. The hydraulic oil working condition in the cylinder 140 is detected by the pressure gauge and the hydraulic oil particle size detector, and an alarm for abnormal hydraulic oil is issued when the working condition of the hydraulic oil is abnormal.

[0056] It should be noted that the installation chamber 120 is located above the gate 130. The side wall of the installation chamber 120 facing the gate 130 is made of wear-resistant tempered glass so that the detection component can detect the gate 130. The number of detection components corresponds to the number of gates 130, that is, one detection component is provided for each pair of gates 130.

[0057] It should be noted that the pressure gauge can detect the hydraulic oil pressure in the cylinder 140 to obtain the hydraulic oil working pressure. The probe of the hydraulic oil particle size analyzer is located inside the cylinder 140. The hydraulic oil particle size analyzer can monitor and analyze the oil particle size, cleanliness, and contaminants of the hydraulic oil to obtain the hydraulic oil working composition. If the hydraulic oil working pressure exceeds the preset pressure range, an abnormal hydraulic oil working pressure alarm will be issued to the ground or offshore platform 20; if the hydraulic oil working composition exceeds the preset composition range, an abnormal hydraulic oil working composition alarm will be issued to the ground or offshore platform 20.

[0058] It should be noted that the working pressure and composition of the hydraulic oil can be used to conduct a preliminary analysis of the cause of the abnormal movement of the gate 130, in order to determine whether the abnormality is caused by the abnormal working pressure and / or the abnormal composition of the hydraulic oil.

[0059] In some embodiments, the detection component includes:

[0060] A sensor, located inside the mounting chamber 120, is used to detect the movement of the blowout preventer 10 gate 130;

[0061] A radiation detector, located in the installation chamber 120 and connected to the rotating device, is used to perform radiation detection on the blowout preventer 10.

[0062] It should be noted that the sensor can detect the movement of the gate 130 and obtain the movement status of the gate 130. If the movement status of the gate 130 is abnormal, an alarm for abnormal gate 130 movement will be issued. The movement status of the gate 130 includes the gate 130's movement speed and position. The alarm for abnormal gate 130 movement includes an alarm for abnormal gate 130 speed and an alarm for abnormal gate 130 position. That is, the sensor detects the movement of the gate 130 and obtains its movement speed and position; if the gate 130's movement speed is less than the required speed... If the speed of the gate 130 is not within the preset range, an alarm will be issued for abnormal speed. If the gate 130 does not reach the preset position, an alarm will be issued for abnormal position. During the closing process of the gate 130, it is necessary not only to close the gate 130 completely, but also to ensure the closing speed of the gate 130. If the closing speed of the gate 130 is too low, it may result in the gate 130 not closing in time, thus failing to prevent the occurrence of safety accidents. The upper limit of the movement speed can be set according to actual needs, and this application does not make specific limitations. The sensor may be an infrared imaging sensor, an infrared sensor, a camera, etc.

[0063] It should be noted that by rotating the X-ray inspection instrument through the rotating device and inspecting the blowout preventer 10 through the X-ray inspection instrument, X-ray inspection results can be obtained. If the X-ray inspection results exceed the preset working conditions, an X-ray inspection abnormality alarm will be issued. The X-ray inspection results can display the corrosion and deformation of the blowout preventer 10 (including the gate 130), and in general, evaluate the physical working performance of the blowout preventer 10. The rotating device can be a universal ball joint, and this application does not specifically limit the specific form of the rotating device.

[0064] In some embodiments, the offshore oil safety equipment fault early warning system based on remote monitoring further includes a petroleum component analyzer and a mud component analyzer. The petroleum component analyzer is used to detect the oil and gas components in the well, and the mud component analyzer is used to detect the mud components in the well.

[0065] It should be noted that the probe (or collector) of the oil composition analyzer and the probe (or collector) of the mud composition analyzer are located inside the well or inside the blowout preventer 10. Different oil compositions and different mud compositions have different corrosion rates on the blowout preventer 10. Therefore, by collecting the oil composition and the mud composition and the duration of their contact with the blowout preventer 10, the corrosion status of the blowout preventer 10 can be accurately estimated, and the usable time of the blowout preventer 10 can be predicted based on the oil composition and the mud composition.

[0066] It should be noted that the corrosion condition of the blowout preventer 10 and the expected service life of the blowout preventer 10 can be estimated by a corrosion model. The corrosion model can be a neural network model, and the corrosion model can be corrected based on the X-ray detection results, thereby ensuring the accuracy of the corrosion model in predicting the service life of the blowout preventer 10.

[0067] In some embodiments, the offshore oil safety equipment fault early warning system based on remote monitoring further includes a winding device 40 and multiple ocean current detectors. The winding device 40 is installed on the anchor chain 30 of the offshore oil platform and is used to wind up or unwind the anchor chain 30 based on the ocean current information detected by the ocean current detectors. The multiple ocean current detectors are installed at different depths below the sea level.

[0068] It should be noted that, because water flows in the ocean at different depths, forces directly act on the offshore platform 20 near the sea surface and on its anchor chains 30 underwater. These forces are ultimately transmitted to the offshore platform 20, causing it to wave or float, thus affecting its stability. Furthermore, the anchor chains 30 used to secure the offshore platform 20, due to their considerable length, typically exhibit a certain degree of sag; that is, they do not secure the platform 20 to the sea in a straight line. This means that when the force on one side of the offshore platform 20 is large, the corresponding anchor chain 30 will "straighten" (i.e., its straight length increases) under the force, causing the offshore platform 20 to fluctuate. Therefore, the fluctuation of the offshore platform 20 caused by the "straightening" of the anchor chain 30 can be counteracted by tightening the anchor chain 30 on the side where the force is applied using the winding device 40. The winding device 40 can be an electric drum, and multiple winding devices 40 can be set on one anchor chain 30 according to the length of the anchor chain 30 to tighten the anchor chain 30 in sections.

[0069] It should be noted that the ocean current detector and the winding device 40 are usually arranged at the same depth. When tightening the anchor chain 30, multiple ocean current detectors can be used to detect the ocean current conditions at different depths below the sea surface. Based on the multiple ocean current conditions, the displacement of the ocean current on the offshore platform 20 is obtained. Based on the displacement, the anchor chain 30 to be wound is determined, and the anchor chain 30 to be wound is wound up by the winding device 40. That is, if the displacement obtained from the ocean current conditions causes the offshore platform 20 to rotate to the right (or capsize), the anchor chain 30 on the left side of the offshore platform 20 is tightened by the winding device 40. At this time, under the force of the ocean current on the offshore platform 20 and the anchor chain 30, the anchor chain 30 "straightens". Tightening the anchor chain 30 by the winding device 40 can prevent the offshore platform 20 from fluctuating, thereby ensuring the stability of the offshore platform 20.

[0070] In summary, compared with the prior art, the advantages of the embodiments of this application are as follows: by setting an installation chamber 120 in the housing 110 of the blowout preventer 10 and setting a detection component in the installation chamber 120, the movement of the gate 130 of the blowout preventer 10 can be detected in a timely manner, and an alarm for abnormal gate 130 movement can be issued when the movement of the gate 130 is abnormal; by setting a pressure gauge and a hydraulic oil particle size analyzer on the cylinder 140 of the blowout preventer 10, the operation of the hydraulic oil in the cylinder 140 can be detected as normal, and an alarm for abnormal hydraulic oil operation can be issued when the hydraulic oil operation is abnormal. The working status of the blowout preventer 10 can be monitored remotely, ensuring the safe use of the blowout preventer 10. This solves the problem that existing blowout preventers 10 are prone to failure, but the operators cannot detect it in time, thus leading to safety accidents.

[0071] Secondly, such as Figure 3 As shown, this application provides a method for early warning of faults in offshore oil safety equipment based on remote monitoring, applied to the offshore oil safety equipment fault warning system based on remote monitoring as described in any one of the first aspects, comprising:

[0072] S101: The movement of the gate 130 is detected by the detection component to obtain the movement status of the gate 130. If the movement status of the gate 130 is abnormal, an alarm for abnormal gate 130 movement is issued.

[0073] It should be noted that the detection components include: a sensor, located in the installation chamber 120, for detecting the movement of the blowout preventer 10 gate 130; and a radiation detector, located in the installation chamber 120 and connected to the rotating device, for performing radiation detection on the blowout preventer 10.

[0074] In some embodiments, the movement of the gate 130 includes the movement speed and position of the gate 130, and the abnormal movement alarm of the gate 130 includes an abnormal speed alarm and an abnormal position alarm.

[0075] The movement of the gate 130 is detected by the detection component to obtain the movement status of the gate 130. If the movement status of the gate 130 is abnormal, an alarm for abnormal gate 130 movement is issued, including:

[0076] The movement of the gate 130 is detected by a sensor to obtain the speed and position of the gate 130.

[0077] If the speed of the gate 130 is less than the upper limit of the speed, an alarm for abnormal speed of the gate 130 will be issued.

[0078] If the gate 130 does not reach the preset position, an alarm for abnormal position of the gate 130 will be issued.

[0079] It should be noted that during the closing process of the gate 130, it is not only necessary to close the gate 130 completely, but also to ensure the closing speed of the gate 130. If the closing speed of the gate 130 is too low, it may result in the gate 130 not closing in time, thus failing to prevent the occurrence of safety accidents. The upper limit of the movement speed can be set according to actual needs, and this application does not make specific limitations. The sensor may be an infrared imaging sensor, an infrared sensor, a camera, etc.

[0080] S102: The hydraulic oil working pressure is obtained by detecting the pressure of the hydraulic oil in the cylinder 140 using the pressure gauge;

[0081] S103: If the hydraulic oil working pressure exceeds the preset pressure range, an abnormal hydraulic oil working pressure alarm will be issued.

[0082] S104: The composition of the hydraulic oil in the cylinder 140 is detected by the hydraulic oil particle size analyzer to obtain the working composition of the hydraulic oil;

[0083] S105: If the working components of the hydraulic oil exceed the preset component range, an alarm for abnormal hydraulic oil working components will be issued.

[0084] It should be noted that the pressure gauge can detect the hydraulic oil pressure of the cylinder 140 to obtain the hydraulic oil working pressure. The probe of the hydraulic oil particle size analyzer is inside the cylinder 140. The hydraulic oil particle size analyzer can monitor and analyze the oil particle size, cleanliness, and contaminants of the hydraulic oil to obtain the hydraulic oil working composition. If the hydraulic oil working pressure exceeds the preset pressure range, an abnormal hydraulic oil working pressure alarm will be issued to the ground or offshore platform 20 (usually, when the hydraulic oil working pressure is low, the gate 130 will not be able to close, or the gate 130 will close too slowly). If the hydraulic oil working composition exceeds the preset composition range (usually, when the hydraulic oil has high particle size, high viscosity, and many impurities, the speed of driving the gate 130 will be reduced), an abnormal hydraulic oil working composition alarm will be issued to the ground or offshore platform 20. The preset pressure range and the specific range of the hydraulic oil working composition can be set according to the actual situation.

[0085] It should be noted that the working pressure and composition of the hydraulic oil can be used to conduct a preliminary analysis of the cause of the abnormal movement of the gate 130, in order to determine whether the abnormality is caused by the abnormal working pressure and / or the abnormal composition of the hydraulic oil.

[0086] In some embodiments, the method for early warning of faults in offshore safety equipment based on remote monitoring further includes:

[0087] The X-ray detector is rotated by a rotating device, and the blowout preventer 10 is detected by the X-ray detector to obtain the X-ray detection result.

[0088] If the X-ray detection result exceeds the preset working condition, an X-ray detection abnormality alarm will be issued.

[0089] It should be noted that by rotating the X-ray inspection instrument through the rotating device and inspecting the blowout preventer 10 through the X-ray inspection instrument, X-ray inspection results can be obtained. If the X-ray inspection results exceed the preset working conditions, an X-ray inspection abnormality alarm will be issued. The X-ray inspection results can display the corrosion and deformation of the blowout preventer 10 (including the gate 130), and in general, evaluate the physical working performance of the blowout preventer 10. The rotating device can be a universal ball joint, and this application does not specifically limit the specific form of the rotating device.

[0090] In some embodiments, the method for early warning of faults in offshore safety equipment based on remote monitoring further includes:

[0091] The composition of petroleum in the well is detected using a petroleum composition analyzer;

[0092] The composition of the mud in the well was detected using a mud composition analyzer.

[0093] The remaining service life of the gate 130 when its movement speed drops to the lower limit is assessed based on the oil composition, and / or the mud composition and the X-ray detection results.

[0094] It should be noted that the probe (or collector) of the oil composition analyzer and the probe (or collector) of the mud composition analyzer are located inside the well or inside the blowout preventer 10. Different oil compositions and different mud compositions have different corrosion rates on the blowout preventer 10. Therefore, by collecting the oil composition and the mud composition and the duration of their contact with the blowout preventer 10, the corrosion status of the blowout preventer 10 can be accurately estimated, and the usable time of the blowout preventer 10 can be predicted based on the oil composition and the mud composition.

[0095] It should be noted that the corrosion condition of the blowout preventer 10 and the expected service life of the blowout preventer 10 can be estimated by a corrosion model. The corrosion model can be a neural network model, and the corrosion model can be corrected based on the X-ray detection results, thereby ensuring the accuracy of the corrosion model in predicting the service life of the blowout preventer 10.

[0096] It should be noted that, based on the X-ray inspection results (including corrosion and deformation), the oil composition, and the mud composition, the remaining service life of the gate 130 when its movement speed drops to the lower limit can be predicted using the gate 130 movement speed model. This provides an accurate time for preparing to replace the equipment in advance. The gate 130 speed model can be a neural network model.

[0097] In some embodiments, the method for early warning of faults in offshore safety equipment based on remote monitoring further includes:

[0098] Multiple ocean currents at different depths below sea level were detected using multiple ocean current detectors.

[0099] The displacement of the offshore platform 20 due to the ocean current conditions described in multiple locations is obtained.

[0100] The anchor chain 30 to be wound is determined based on the applied displacement, and the anchor chain 30 to be wound is wound up by the winding device 40.

[0101] In some embodiments, obtaining the displacement of the offshore platform 20 based on the ocean current conditions at multiple locations includes:

[0102] The force exerted by the ocean currents on the anchor chain 30 and the platform force on the offshore platform 20 are obtained based on the ocean current conditions at multiple locations.

[0103] The applied displacement is obtained based on the force of the anchor chain 30 and the force of the platform.

[0104] It should be noted that, because water flows in the ocean at different depths, forces directly act on the offshore platform 20 near the sea surface and on its anchor chains 30 underwater. These forces are ultimately transmitted to the offshore platform 20, causing it to wave or float, thus affecting its stability. Furthermore, the anchor chains 30 used to secure the offshore platform 20, due to their considerable length, typically exhibit a certain degree of sag; that is, they do not secure the platform 20 to the sea in a straight line. This means that when the force on one side of the offshore platform 20 is large, the corresponding anchor chain 30 will "straighten" (i.e., its straight length increases) under the force, causing the offshore platform 20 to fluctuate. Therefore, the fluctuation of the offshore platform 20 caused by the "straightening" of the anchor chain 30 can be counteracted by tightening the anchor chain 30 on the side where the force is applied using the winding device 40. The winding device 40 can be an electric drum, and multiple winding devices 40 can be set on one anchor chain 30 according to the length of the anchor chain 30 to tighten the anchor chain 30 in sections.

[0105] It should be noted that the ocean current detector and the winding device 40 are usually arranged at the same depth and located outside the winding device 40 (i.e., on the side away from the offshore platform 20). When tightening the anchor chain 30, multiple ocean current detectors can be used to detect the ocean current conditions at different depths below the sea surface. Based on the multiple ocean current conditions, the displacement of the ocean current on the offshore platform 20 is obtained. Based on the displacement, the anchor chain 30 to be wound is determined, and the anchor chain 30 to be wound is wound by the winding device 40. That is, if the displacement obtained from the ocean current conditions causes the offshore platform 20 to rotate to the right (or capsize), the anchor chain 30 on the left side of the offshore platform 20 is tightened by the winding device 40. At this time, under the force of the ocean current on the offshore platform 20 and the anchor chain 30, the anchor chain 30 "straightens". Tightening the anchor chain 30 by the winding device 40 can prevent the offshore platform 20 from fluctuating, thereby ensuring the stability of the offshore platform 20.

[0106] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0107] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0108] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0109] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A fault early warning system for offshore oil safety equipment based on remote monitoring, characterized in that, The offshore safety equipment is a blowout preventer for underwater applications, including: The installation chamber is located inside the blowout preventer housing; A detection component, located in the installation chamber, is used to detect the movement of the blowout preventer gate. A pressure gauge is installed on the hydraulic cylinder of the blowout preventer; A hydraulic oil particle size analyzer is installed inside the oil cylinder to detect the composition of the hydraulic oil inside the oil cylinder; In the monitoring state, the movement of the gate is detected by the detection component, and a gate action abnormality alarm is issued when the movement of the gate is abnormal. The hydraulic oil working condition in the cylinder is detected by the pressure gauge and the hydraulic oil particle size detector, and a hydraulic oil abnormality alarm is issued when the hydraulic oil working condition is abnormal. The installation chamber is located above the blowout preventer gate, and the side wall of the installation chamber facing the blowout preventer gate is made of wear-resistant tempered glass. It also includes a winding device and multiple ocean current detectors. The winding device is installed on the anchor chain of the offshore oil platform and is used to wind up or unwind the anchor chain based on the ocean current information detected by the ocean current detectors. The multiple ocean current detectors are located at different depths below the sea surface. The anchor chain is equipped with multiple winding devices to tighten the anchor chain in sections; The ocean current detector is arranged at the same depth as the winding device and is located outside the winding device. When tightening the anchor chain, multiple ocean current detectors can be used to detect the ocean current conditions at different depths below the sea surface. Based on the multiple ocean current conditions, the displacement of the ocean current on the offshore platform is obtained. Based on the displacement, the anchor chain to be wound is determined, and the anchor chain to be wound is wound up by the winding device.

2. The offshore oil safety equipment fault early warning system based on remote monitoring according to claim 1, characterized in that, The detection component includes: A sensor, located in the installation chamber, is used to detect the movement of the blowout preventer gate. A radiation detector, located in the installation room and connected to the rotating device, is used to perform radiation inspection on the blowout preventer.

3. The offshore oil safety equipment fault early warning system based on remote monitoring according to claim 1, characterized in that, It also includes a petroleum composition analyzer and a mud composition analyzer. The petroleum composition analyzer is used to detect the oil and gas composition in the well, and the mud composition analyzer is used to detect the mud composition in the well.

4. A method for early warning of faults in offshore oil safety equipment based on remote monitoring, characterized in that, The system applied to the remote monitoring-based offshore oil safety equipment fault early warning system as described in any one of claims 1-3 includes: The movement of the gate is detected by the detection component to obtain the gate movement status. If the gate movement status is abnormal, an alarm for abnormal gate movement is issued. The hydraulic oil working pressure is obtained by detecting the pressure of the hydraulic oil in the cylinder using the pressure gauge. If the hydraulic oil working pressure exceeds the preset pressure range, an abnormal hydraulic oil working pressure alarm will be issued. The composition of the hydraulic oil in the cylinder is detected by the hydraulic oil particle size analyzer to obtain the working composition of the hydraulic oil; If the working composition of the hydraulic oil exceeds the preset range, an alarm for abnormal hydraulic oil working composition will be issued. Also includes: Multiple ocean currents at different depths below sea level were detected using multiple ocean current detectors. The displacement of the offshore platform due to the ocean currents is obtained based on the ocean current conditions described in multiple places; The anchor chain to be wound is determined based on the applied displacement, and the anchor chain to be wound is wound up by the winding device. The displacement of the offshore platform caused by the ocean currents, obtained based on multiple ocean current conditions, includes: Based on the ocean current conditions described in multiple locations, the anchor chain force exerted by the ocean current on the anchor chain and the platform force exerted by the offshore platform are obtained. The applied displacement is obtained based on the anchor chain force and the platform force.

5. The method for early warning of faults in offshore oil safety equipment based on remote monitoring according to claim 4, characterized in that, The gate movement status includes the gate movement speed and the gate movement position, and the gate movement abnormality alarm includes the gate speed abnormality alarm and the gate position abnormality alarm. The detection component detects the movement of the gate to obtain the gate's movement status. If the gate's movement is abnormal, a gate movement abnormality alarm is issued, including: The movement of the gate is detected by a sensor, and the speed and position of the gate are obtained. If the speed of the gate is less than the upper limit of the speed, an alarm for abnormal gate speed will be issued. If the gate's movement position does not reach the preset movement position, an alarm for abnormal gate position will be issued.

6. The method for early warning of faults in offshore oil safety equipment based on remote monitoring according to claim 4, characterized in that, Also includes: The X-ray inspection instrument is rotated by a rotating device, and the blowout preventer is inspected by the X-ray inspection instrument to obtain the X-ray inspection result; If the X-ray detection result exceeds the preset working condition, an X-ray detection abnormality alarm will be issued.

7. The method for early warning of faults in offshore oil safety equipment based on remote monitoring according to claim 6, characterized in that, Also includes: The composition of petroleum in the well is detected using a petroleum composition analyzer; The composition of the mud in the well was detected using a mud composition analyzer. The remaining service life of the gate when its movement speed drops to the lower limit is assessed based on the petroleum composition, and / or the mud composition and the X-ray detection results.

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