Offshore oilfield operation safety early warning method

Abstract

The invention discloses an offshore oilfield operation safety early warning method, which relates to the technical field of operation safety early warning, and comprises the following implementation steps: configuring IP address information of an offshore operation remote control area server, entering an operation early warning end, monitoring the environment information of an offshore oilfield in real time, and predicting the influence of an offshore environment and a sea area. The method comprises the following steps: judging the environmental abnormity of a sea area and the influence direction of the sea area, sending out early warning information, if normal, entering an inclination angle monitoring end, entering an inclination angle correction end according to the prediction of severe weather and the influence direction of the sea area, automatically generating an inclination angle correction value according to the inclination angle of the drilling equipment monitored in real time, and correcting the correction value in real time in a stepped progressive manner. According to the offshore oilfield operation safety early warning method, the water quality safety around the oilfield operation area is guaranteed, potential safety hazards existing in offshore oilfield operation are reduced, the inclination angle of drilling equipment can be automatically corrected, and the maintenance difficulty of the offshore oilfield operation equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of operation safety early warning, and in particular to an offshore oilfield operation safety early warning method. Background Art

[0002] Offshore oilfield operations are a process of conducting various stages of operations such as oil and natural gas exploration, development, and production in the marine environment. Offshore oilfield operations will have a certain impact on the marine environment, so a series of environmental protection measures need to be taken, such as controlling pollutant emissions and protecting marine ecology. At the same time, due to the complex offshore operating environment and high safety risks, it is necessary to strengthen safety management, establish a sound safety system and emergency plans, and ensure the safety of life and property of operators.

[0003] Application No. CN201711250632.3 discloses a safety status monitoring and early warning system for offshore workers, including a front-end water-falling monitoring module and a back-end management module. The front-end water-falling monitoring module monitors the relevant information of offshore workers and transmits it to the back-end management module to determine whether the monitoring information is normal, and sends an alarm message if it is abnormal; the back-end management module receives the information of the front-end water-falling monitoring module, constructs a visual situation map of the wind farm, and plans the best rescue path according to the alarm information. In the present invention, accurate positioning, timely rescue, and avoidance of misoperation.

[0004] The above patent still has some shortcomings in application: 1. Offshore oil field operations cannot predict bad weather in advance, making it impossible for offshore oil field operations to warn of unexpected risks in advance and send out alarm signals in the corresponding direction in advance, resulting in safety hazards in offshore oil fields; 2. At the same time, in bad weather, earthquakes or strong winds may cause the drilling platform to tilt or equipment to be damaged, and huge waves may impact the platform structure and cause safety accidents; 3. When encountering earthquakes or strong winds and bad weather, the tilt angle of the drilling equipment cannot be automatically corrected, making the maintenance of offshore oil field operations time-consuming and labor-intensive, and not convenient for rapid maintenance or correction of offshore oil field operational failures.

[0005] Therefore, a new offshore oilfield operation safety early warning method is proposed to solve the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a safety early warning method for offshore oil field operations to solve the problems raised in the above background.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a safety early warning method for offshore oilfield operations, the method comprising the following implementation steps:

[0008] Step 1: Configure the IP address information of the offshore operation remote control area server;

[0009] Step 2: Enter the operation warning terminal, monitor the environmental information of the offshore oil field in real time, predict the offshore environment and the impact on the sea area, determine the abnormal sea environment and the direction of the sea impact, and issue warning information. If there is an abnormality, report it to the system to issue a warning information;

[0010] Step 3: If normal, enter the tilt monitoring terminal, determine the reinforcement angle of the drilling platform according to the prediction of bad weather and the direction of the sea area, and monitor in real time whether the drilling platform is tilted;

[0011] Step 4: Enter the inclination correction terminal, automatically generate the inclination correction value through the real-time monitored inclination angle of the drilling equipment, and correct the correction value in real time in a step-by-step manner.

[0012] The operation warning terminal includes an operation information module, a sea area monitoring module and a judgment and warning module;

[0013] The operation information module includes an oilfield operation unit and an oil spill monitoring unit;

[0014] The oilfield operation unit is used to collect offshore oilfield operation items in real time through a data acquisition instrument, and to record the operation items corresponding to different positions of the offshore oilfield in real time through a data recorder, to capture the offshore oilfield area through a camera, and to obtain the oilfield operation sea area image in real time through GIS technology;

[0015] The oil spill monitoring unit is used to detect the oil spill sea area in real time by SAR image method, and distinguish the oil spill sea area from other sea areas by color identification, and the steps are as follows:

[0016] Calculate the image information corresponding to different gray levels to determine the scope of the oil spill sea area. The formula is:

[0017] H(X)=-∑ i p(x i );

[0018] Among them, H(X) represents the oil spill area of ​​the image, p(x i ) indicates the pixel value is x i The ratio of the number of pixels to the total number of pixels is used to reflect the distribution of oil spill areas. By selecting the maximum gray value of the detected sea area as the oil field detection threshold, the oil spill area and other areas can be effectively distinguished.

[0019] The sea area monitoring module includes an environment monitoring unit and an impact prediction unit;

[0020] The environmental monitoring unit is used to detect the environmental parameters of the corresponding sea area in real time through earthquake monitoring equipment, landslide monitoring equipment, debris flow monitoring equipment, ground subsidence monitoring equipment, volcanic eruption monitoring equipment, temperature sensors, humidity sensors and light sensors;

[0021] The impact prediction unit is used to predict the impact of oilfield operations based on oilfield environmental information and oil spill range, and the prediction method is as follows:

[0022] Set the standard environmental parameters for offshore oilfield operations, calculate the difference between the environmental parameters of the corresponding sea area and the standard environmental parameters, if the difference = 0, the environmental parameters are judged to be safe, if the difference ≠ 0, the environmental parameters are judged to be abnormal, and an environmental warning is issued. One minute is counted as one cycle, and the safety of the oilfield operating environment in the corresponding sea area is predicted based on the environmental parameters of three cycles. If the average values ​​of the environmental parameters of the three cycles all exceed the standard environmental parameters, it is judged that the execution of the oilfield operation project in the corresponding sea area is abnormal, and an environmental alarm message is issued;

[0023] Receive the scope of the oil spill sea area, expand the oil field operation protection range to the surrounding area by 1,000 meters, immediately report the system to issue an environmental pollution alarm, and determine the direction of the sea area affected by the wind direction meter.

[0024] The judgment and warning module includes an environment tracking unit, a level warning unit and a warning reminder unit;

[0025] The environmental tracking unit is used to track the real-time environmental parameters of offshore oil field operations in real time through a data tracker;

[0026] The level warning unit is used to classify the difference between the average value of the environmental parameter and the standard environmental parameter into levels, the first level is >0 and ≤0.05 for yellow warning, the second level is >0.05 and ≤0.1 for red warning, and the third level is >0.1 for emergency red warning;

[0027] The early warning reminder unit is used to issue an alarm reminder when it is determined that the sea environment is abnormal and the sea area is affected.

[0028] The tilt monitoring terminal includes a direction positioning module, a tilt monitoring module and a tilt self-tracking module;

[0029] The direction positioning module includes a prediction receiving unit and a direction positioning unit;

[0030] The prediction receiving unit is used to receive offshore oil field prediction information in real time through a data receiver and arrange it in sequence through a timer;

[0031] The direction positioning unit is used to receive the sea area impact direction determined by the wind direction measuring instrument to obtain the offshore oil field early warning direction.

[0032] The tilt monitoring module includes a multi-angle monitoring unit and a multi-angle analysis unit;

[0033] The multi-angle monitoring unit is used to set the inclination sensors at multiple angles and measure the setting angles of the drilling platform in real time;

[0034] The multi-angle analysis unit is used to receive the drilling platform measurement values ​​at multiple angles in real time, and determine in real time whether the angle of the drilling platform is deviated based on the secondary calculation between the four angles. The calculation formula is as follows:

[0035] Locators are set up in the four directions of east, west, south and north, and horizontal lines are drawn between the four locators to obtain the intersection point of the four locators. This intersection point is set as the origin, and a coordinate system is established. The angular movement distance of the drilling platform in the four directions on the X-axis and the Y-axis is obtained by the calculation formula:

[0036]

[0037] Among them, α is the angle between the angular movement distance of the drilling platform and the positive direction of the X axis, θ is the angle between the angular movement distance of the drilling platform and the positive direction of the Y axis, A is the measured height of the drilling platform, Δx n Δy is the angular movement distance of the drilling platform in the X-axis direction. n is the angular movement distance of the drilling platform in the Y-axis direction, n Indicates the directions of east, south, west and north;

[0038] If the angle moving distance is a positive number or a negative number, it is judged that the angle of the drilling platform is tilted; if the angle moving distance is 0, it is judged that the angle of the drilling platform is normal;

[0039] Use the four locators in the east, west, south and north to calculate whether there is an angular offset between each two locators according to the above formula. If it is = 0, it means that the drilling platform is stable. If it is a positive or negative number, it means that the drilling platform is loose. This direction is abnormal and the reporting system will issue an alarm reminder.

[0040] The tilt angle self-tracking module includes an abnormality tracking unit and a reinforcement warning unit;

[0041] The abnormality tracking unit is used to track the inclination angle of the drilling platform at the current moment in real time through a data tracker;

[0042] The reinforcement warning unit is used to open the reinforcement tightening device in the current direction through the signal transmitter when it is judged that the drilling platform is abnormal, and send out a reinforcement warning signal to feedback manual processing.

[0043] The tilt correction end includes an abnormal receiving module, a step-by-step progressive module and a correction influence module;

[0044] The abnormal receiving module includes an abnormal receiving unit and a direction determining unit;

[0045] The abnormal receiving unit is used to receive the abnormal direction, reinforcement warning signal and inclination deviation value of the drilling platform in real time through a data receiver;

[0046] The direction determination unit is used to receive the abnormal direction of the drilling platform in real time based on the calculation of the southeast, northwest and northeast directions.

[0047] The step-by-step progressive module includes a step-by-step progressive unit and a correction tracking unit;

[0048] The step-by-step progressive unit is used to divide the inclination deviation value into three correction levels, taking one third of the inclination deviation value as a correction value, and continuing the correction three times;

[0049] The correction tracking unit is used to calculate the values ​​of the inclination angle before and after correction in real time through a data tracker and an inclination calculation formula, and calculate the difference. If the difference = 0, it means that the correction is invalid, and if the difference ≠ 0, it means that the correction is valid.

[0050] The correction impact module includes a correction reinforcement unit, a sea area impact unit and a correction alarm unit;

[0051] The correction reinforcement unit is used to reinforce the direction in which the drilling platform has deviated from the inclination angle for the second time according to the reinforcement equipment;

[0052] The sea area impact unit is used to analyze the use status of the drilling platform and the sea area impact through the corrected inclination angle, and to detect the oil field status of the sea area in real time through the oil field detector and water quality detection equipment;

[0053] The correction alarm unit is used to immediately report to the system to issue a voice alarm and feedback for manual processing when it is tracked that the correction is invalid.

[0054] The present invention has the following beneficial effects:

[0055] 1. In the present invention, by setting up an operation warning terminal, when conducting offshore oil field operations, by real-time monitoring of the environmental information of the offshore oil field, timely judging the abnormal sea environment and the direction of the sea impact, and real-time monitoring of the oil spill situation of the offshore oil field operation, timely sending out oil spill alarm feedback for manual processing, ensuring the safety of water quality around the oil field operation area, ensuring that the offshore oil field operation can predict bad weather in advance, and enabling the offshore oil field operation to warn of unexpected risks in advance, sending out alarm signals in the corresponding direction in advance, and reducing the potential safety hazards of the offshore oil field operation;

[0056] 2. In the present invention, by setting up the inclination monitoring terminal, when conducting offshore oil field operations, according to the predicted operating environment and sea area impact, it is possible to timely track whether the drilling equipment of the offshore oil field operation is tilted, to ensure that in bad weather, earthquakes or strong winds will not cause the drilling platform to tilt or equipment to be damaged, and reduce the possibility of safety accidents;

[0057] 3. In the present invention, by setting the inclination correction end, when conducting offshore oil field operations, the inclination angle of the drilling equipment in the oil field operation is automatically corrected in real time in a step-by-step manner through the inclination angle deviation value of the drilling equipment monitored in real time, so that the inclination angle of the drilling equipment can be automatically corrected in the event of an earthquake or strong wind or severe weather, thereby reducing the difficulty of repairing the equipment in the offshore oil field operation and facilitating the rapid repair or correction of offshore oil field operation failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 This is an overall flow chart of a safety early warning method for offshore oilfield operations according to the present invention;

[0059] Figure 2 It is a schematic diagram of the structure of an operation warning terminal of an offshore oilfield operation safety warning method of the present invention;

[0060] Figure 3 It is a schematic diagram of the structure of the inclination monitoring end of the offshore oil field operation safety early warning method of the present invention;

[0061] Figure 4 The present invention is a schematic diagram of the structure of the inclination correction end of the offshore oil field operation safety early warning method. DETAILED DESCRIPTION

[0062] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0063] Embodiment 1

[0064] Please refer to Figure 1 to Figure 2 As shown: A safety early warning method for offshore oilfield operations, the method includes the following implementation steps:

[0065] Step 1: Configure the IP address information of the offshore operation remote control area server;

[0066] Step 2: Enter the operation warning terminal, monitor the environmental information of the offshore oil field in real time, predict the offshore environment and the impact on the sea area, determine the abnormal sea environment and the direction of the sea impact, and issue warning information. If there is an abnormality, report it to the system to issue a warning information;

[0067] Step 3: If normal, enter the tilt monitoring terminal, determine the reinforcement angle of the drilling platform according to the prediction of bad weather and the direction of the sea area, and monitor in real time whether the drilling platform is tilted;

[0068] Step 4: Enter the inclination correction terminal, automatically generate the inclination correction value through the real-time monitored inclination angle of the drilling equipment, and correct the correction value in real time in a step-by-step manner.

[0069] The operation warning terminal includes an operation information module, a sea area monitoring module, and a judgment and warning module;

[0070] The operation information module includes the oil field operation unit and the oil spill monitoring unit;

[0071] The oilfield operation unit is used to collect offshore oilfield operation items in real time through a data acquisition instrument, and to record the operation items corresponding to different locations of the offshore oilfield in real time through a data recorder, to capture the offshore oilfield area through a camera, and to obtain the oilfield operation sea area image in real time through GIS technology;

[0072] The oil spill monitoring unit is used to detect the oil spill sea area in real time through the SAR image method, and distinguish the oil spill sea area from other sea areas by color identification. The steps are as follows:

[0073] Calculate the image information corresponding to different gray levels to determine the scope of the oil spill sea area. The formula is:

[0074] H(X)=-∑ i p(x i );

[0075] Among them, H(X) represents the oil spill area of ​​the image, p(x i ) indicates the pixel value is x i The ratio of the number of pixels to the total number of pixels is used to reflect the distribution of oil spill areas. By selecting the maximum gray value of the detected sea area as the oil field detection threshold, the oil spill area and other areas can be effectively distinguished.

[0076] The sea area monitoring module includes an environmental monitoring unit and an impact prediction unit;

[0077] The environmental monitoring unit is used to detect the environmental parameters of the corresponding sea area in real time through earthquake monitoring equipment, landslide monitoring equipment, mud-rock flow monitoring equipment, ground subsidence monitoring equipment, volcanic eruption monitoring equipment, temperature sensors, humidity sensors and light sensors;

[0078] The impact prediction unit is used to predict the impact of oilfield operations based on oilfield environmental information and oil spill range. The prediction method is as follows:

[0079] Set the standard environmental parameters for offshore oilfield operations, calculate the difference between the environmental parameters of the corresponding sea area and the standard environmental parameters, if the difference = 0, the environmental parameters are judged to be safe, if the difference ≠ 0, the environmental parameters are judged to be abnormal, and an environmental warning is issued. One minute is counted as one cycle, and the safety of the oilfield operating environment in the corresponding sea area is predicted based on the environmental parameters of three cycles. If the average values ​​of the environmental parameters of the three cycles all exceed the standard environmental parameters, it is judged that the execution of the oilfield operation project in the corresponding sea area is abnormal, and an environmental alarm message is issued;

[0080] Receive the scope of the oil spill sea area, expand the oil field operation protection range to the surrounding area by 1,000 meters, immediately report the system to issue an environmental pollution alarm, and determine the direction of the sea area affected by the wind direction meter.

[0081] The judgment and warning module includes an environment tracking unit, a level warning unit and a warning reminder unit;

[0082] The environmental tracking unit is used to track the real-time environmental parameters of offshore oil field operations through data trackers;

[0083] The level warning unit is used to classify the difference between the average value of environmental parameters and the standard environmental parameters into levels. The first level is >0 and ≤0.05, which is a yellow warning; the second level is >0.05 and ≤0.1, which is a red warning; and the third level is >0.1, which is an emergency red warning.

[0084] The early warning reminder unit is used to issue an alarm reminder when it determines that the sea environment is abnormal and the sea area is affected, conduct real-time monitoring of oil spills in offshore oilfield operations, and promptly issue oil spill alarm feedback for manual processing to ensure the safety of water quality around the oilfield operation area. It can ensure that offshore oilfield operations can predict severe weather in advance and enable offshore oilfield operations to be warned of unexpected risks in advance.

[0085] Embodiment 2

[0086] Please refer to Figure 3 As shown: Based on the first embodiment, the tilt monitoring terminal includes a direction positioning module, a tilt monitoring module and a tilt self-tracking module;

[0087] The direction positioning module includes a prediction receiving unit and a direction positioning unit;

[0088] The prediction receiving unit is used to receive the offshore oil field prediction information in real time through a data receiver and arrange it in sequence through a timer;

[0089] The direction positioning unit is used to receive the sea area impact direction determined by the wind direction measuring instrument to obtain the offshore oil field early warning direction.

[0090] The tilt monitoring module includes a multi-angle monitoring unit and a multi-angle analysis unit;

[0091] The multi-angle monitoring unit is used to set the inclination sensors at multiple angles and measure the setting angle of the drilling platform in real time;

[0092] The multi-angle analysis unit is used to receive the drilling platform measurement values ​​at multiple angles in real time, and judge whether the drilling platform angle is deviated in real time based on the secondary calculation between the four angles. The calculation formula is as follows:

[0093] Locators are set up in the four directions of east, west, south and north, and horizontal lines are drawn between the four locators to obtain the intersection point of the four locators. This intersection point is set as the origin, and a coordinate system is established. The angular movement distance of the drilling platform in the four directions on the X-axis and the Y-axis is obtained by the calculation formula:

[0094]

[0095] Among them, α is the angle between the angular movement distance of the drilling platform and the positive direction of the X axis, θ is the angle between the angular movement distance of the drilling platform and the positive direction of the Y axis, A is the measured height of the drilling platform, Δx n Δy is the angular movement distance of the drilling platform in the X-axis direction. n is the angular movement distance of the drilling platform in the Y-axis direction, n Indicates the directions of east, south, west and north;

[0096] If the angle moving distance is a positive number or a negative number, it is judged that the angle of the drilling platform is tilted; if the angle moving distance is 0, it is judged that the angle of the drilling platform is normal;

[0097] Use the four locators in the east, west, south and north to calculate whether there is an angular offset between each two locators according to the above formula. If it is = 0, it means that the drilling platform is stable. If it is a positive or negative number, it means that the drilling platform is loose. This direction is abnormal and the reporting system will issue an alarm reminder.

[0098] The tilt self-tracking module includes an abnormality tracking unit and a reinforcement warning unit;

[0099] The abnormal tracking unit is used to track the inclination of the drilling platform at the current moment in real time through the data tracker;

[0100] The reinforcement warning unit is used to activate the reinforcement tightening device in the current direction through the signal transmitter when it is judged that the drilling platform is abnormal, and send out a reinforcement warning signal, which is fed back for manual processing. It can timely track whether the drilling equipment in offshore oil field operations is tilted, and ensure that in bad weather, earthquakes or strong winds will not cause the drilling platform to tilt or equipment to be damaged.

[0101] Embodiment 3

[0102] Please refer to Figure 4 As shown: Based on the first embodiment, the tilt correction end includes an abnormal receiving module, a step-by-step progressive module and a correction influence module;

[0103] The abnormal receiving module includes an abnormal receiving unit and a direction determining unit;

[0104] The abnormal receiving unit is used to receive the abnormal direction, reinforcement warning signal and inclination deviation value of the drilling platform in real time through the data receiver;

[0105] The direction determination unit is used to receive the abnormal direction of the drilling platform in real time based on the calculation of the southeast, northwest and east directions.

[0106] The step-by-step progressive module includes a step-by-step progressive unit and a correction tracking unit;

[0107] The step-by-step progressive unit is used to divide the tilt angle deviation value into three correction levels, taking one third of the tilt angle deviation value as a correction value, and continuing the correction three times;

[0108] The correction tracking unit is used to calculate the values ​​of the inclination angle before and after correction in real time through a data tracker and an inclination calculation formula, and calculate the difference. If the difference = 0, it means that the correction is invalid, and if the difference ≠ 0, it means that the correction is valid.

[0109] The correction impact module includes the correction reinforcement unit, the sea area impact unit and the correction alarm unit;

[0110] The correction reinforcement unit is used to reinforce the direction of the drilling platform where the inclination angle deviates for the second time according to the reinforcement equipment;

[0111] The sea area impact unit is used to analyze the use status of the drilling platform and the sea area impact through the corrected inclination angle, and to detect the oil field status of the sea area in real time through oil field detectors and water quality testing equipment;

[0112] The correction alarm unit is used to immediately report to the system to issue a voice alarm when it tracks that the correction is ineffective, and feedback is given to manual processing. Through the real-time monitoring of the deviation value of the inclination angle of the drilling equipment, the inclination angle of the drilling equipment in the oil field operation is automatically corrected in real time in a step-by-step manner. In the event of an earthquake or strong wind or severe weather, the inclination angle of the drilling equipment can be automatically corrected, reducing the difficulty of repairing equipment in offshore oil field operations.

[0113] In the present invention, a safety early warning method for offshore oilfield operations is provided. First, the IP address information of the server in the remote control area of ​​offshore operations is configured; the operation early warning terminal is entered, and the environmental information of the offshore oilfield is monitored in real time, and the offshore environment and the impact on the sea area are predicted, the abnormality of the sea environment and the direction of the sea area impact are judged, and early warning information is issued. If it is abnormal, the warning information is reported to the system. When the offshore oilfield operation is carried out, the environmental information of the offshore oilfield is monitored in real time, and the operating environment and the impact on the sea area are predicted by the offshore oilfield environmental information, the abnormality of the sea environment and the direction of the sea area impact are judged in time, and the oil spill situation of the offshore oilfield operation is monitored in real time, and the oil spill alarm feedback is issued in time for manual processing, so as to ensure the safety of water quality around the oilfield operation area, ensure that the offshore oilfield operation predicts bad weather in advance, and enables the offshore oilfield operation to warn of unexpected risks in advance, and issue an alarm signal in the corresponding direction in advance, so as to reduce the safety hazards existing in the offshore oilfield operation; if it is normal, the inclination monitoring terminal is entered, and the inclination monitoring terminal is used to monitor the bad weather and the impact on the sea area according to the bad weather and the impact on the sea area. The prediction of the direction of the impact can be used to determine the reinforcement angle of the drilling platform, and the angle of the drilling platform can be monitored in real time to determine whether it is tilted. When operating in offshore oil fields, according to the predicted operating environment and sea area impact, it can timely track whether the drilling equipment in offshore oil field operations is tilted, to ensure that in severe weather, earthquakes or strong winds will not cause the drilling platform to tilt or equipment to be damaged, thereby reducing the possibility of safety accidents. Entering the inclination correction end, the inclination correction value is automatically generated through the real-time monitored inclination angle of the drilling equipment, and the correction value is corrected in real time in a step-by-step progressive manner. When operating in offshore oil fields, when encountering severe weather or abnormal reinforcement of the drilling equipment, the inclination angle deviation value of the drilling equipment monitored in real time is used to automatically correct the inclination angle of the drilling equipment in the oil field operation in a step-by-step progressive manner, so that the inclination angle of the drilling equipment can be automatically corrected in severe weather such as earthquakes or strong winds, thereby reducing the difficulty of repairing the equipment in offshore oil field operations and facilitating rapid repair or correction of offshore oil field operation failures.

[0114] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A safety early warning method for offshore oilfield operations, characterized in that: The method comprises the following implementation steps: Step 1: Configure the IP address information of the offshore operation remote control area server; Step 2: Enter the operation warning terminal, monitor the environmental information of the offshore oil field in real time, predict the offshore environment and the impact on the sea area, determine the abnormal sea environment and the direction of the sea impact, and issue warning information. If there is an abnormality, report it to the system to issue a warning information; Step 3: If normal, enter the tilt monitoring terminal, determine the reinforcement angle of the drilling platform according to the prediction of bad weather and the direction of the sea area, and monitor in real time whether the drilling platform is tilted; Step 4: Enter the inclination correction terminal, automatically generate the inclination correction value through the real-time monitored inclination angle of the drilling equipment, and correct the correction value in real time in a step-by-step manner.

2. The method according to claim 1, characterized in that: The operation warning terminal includes an operation information module, a sea area monitoring module and a judgment and warning module; The operation information module includes an oilfield operation unit and an oil spill monitoring unit; The oilfield operation unit is used to collect offshore oilfield operation items in real time through a data acquisition instrument, and to record the operation items corresponding to different positions of the offshore oilfield in real time through a data recorder, to capture the offshore oilfield area through a camera, and to obtain the oilfield operation sea area image in real time through GIS technology; The oil spill monitoring unit is used to detect the oil spill sea area in real time by SAR image method, and distinguish the oil spill sea area from other sea areas by color identification, and the steps are as follows: Calculate the image information corresponding to different gray levels to determine the scope of the oil spill sea area. The formula is: H(X)=-∑ i p(x i ); Among them, H(X) represents the oil spill area of ​​the image, p(x i ) indicates the pixel value is x i The ratio of the number of pixels to the total number of pixels is used to reflect the distribution of oil spill areas. By selecting the maximum gray value of the detected sea area as the oil field detection threshold, the oil spill area and other areas can be effectively distinguished.

3. The method according to claim 2, characterized in that: The sea area monitoring module includes an environment monitoring unit and an impact prediction unit; The environmental monitoring unit is used to detect the environmental parameters of the corresponding sea area in real time through earthquake monitoring equipment, landslide monitoring equipment, debris flow monitoring equipment, ground subsidence monitoring equipment, volcanic eruption monitoring equipment, temperature sensors, humidity sensors and light sensors; The impact prediction unit is used to predict the impact of oilfield operations based on oilfield environmental information and oil spill range, and the prediction method is as follows: Set the standard environmental parameters for offshore oilfield operations, calculate the difference between the environmental parameters of the corresponding sea area and the standard environmental parameters, if the difference = 0, the environmental parameters are judged to be safe, if the difference ≠ 0, the environmental parameters are judged to be abnormal, and an environmental warning is issued. One minute is counted as one cycle, and the safety of the oilfield operating environment in the corresponding sea area is predicted based on the environmental parameters of three cycles. If the average values ​​of the environmental parameters of the three cycles all exceed the standard environmental parameters, it is judged that the execution of the oilfield operation project in the corresponding sea area is abnormal, and an environmental alarm message is issued; Receive the scope of the oil spill sea area, expand the oil field operation protection range to the surrounding area by 1,000 meters, immediately report the system to issue an environmental pollution alarm, and determine the direction of the sea area affected by the wind direction meter.

4. The method according to claim 3, characterized in that: The judgment and warning module includes an environment tracking unit, a level warning unit and a warning reminder unit; The environmental tracking unit is used to track the real-time environmental parameters of offshore oil field operations in real time through a data tracker; The level warning unit is used to classify the difference between the average value of the environmental parameter and the standard environmental parameter into levels, the first level is >0 and ≤0.05 for yellow warning, the second level is >0.05 and ≤0.1 for red warning, and the third level is >0.1 for emergency red warning; The early warning reminder unit is used to issue an alarm reminder when it is determined that the sea environment is abnormal and the sea area is affected.

5. The method according to claim 1, characterized in that: The tilt monitoring terminal includes a direction positioning module, a tilt monitoring module and a tilt self-tracking module; The direction positioning module includes a prediction receiving unit and a direction positioning unit; The prediction receiving unit is used to receive offshore oil field prediction information in real time through a data receiver and arrange it in sequence through a timer; The direction positioning unit is used to receive the sea area impact direction determined by the wind direction measuring instrument to obtain the offshore oil field early warning direction.

6. The method according to claim 5, characterized in that: The tilt monitoring module includes a multi-angle monitoring unit and a multi-angle analysis unit; The multi-angle monitoring unit is used to set the inclination sensors at multiple angles and measure the setting angles of the drilling platform in real time; The multi-angle analysis unit is used to receive the drilling platform measurement values ​​at multiple angles in real time, and determine in real time whether the angle of the drilling platform is deviated based on the secondary calculation between the four angles. The calculation formula is as follows: Locators are set up in the four directions of east, west, south and north, and horizontal lines are drawn between the four locators to obtain the intersection point of the four locators. This intersection point is set as the origin, and a coordinate system is established. The angular movement distance of the drilling platform in the four directions on the X-axis and the Y-axis is obtained by the calculation formula: Among them, α is the angle between the angular movement distance of the drilling platform and the positive direction of the X axis, θ is the angle between the angular movement distance of the drilling platform and the positive direction of the Y axis, A is the measured height of the drilling platform, Δx n Δy is the angular movement distance of the drilling platform in the X-axis direction. n is the angular movement distance of the drilling platform in the Y-axis direction, n Indicates the directions of east, south, west and north; If the angle moving distance is a positive number or a negative number, it is judged that the angle of the drilling platform is tilted; if the angle moving distance is 0, it is judged that the angle of the drilling platform is normal; Use the four locators in the east, west, south and north to calculate whether there is an angular offset between each two locators according to the above formula. If it is = 0, it means that the drilling platform is stable. If it is a positive or negative number, it means that the drilling platform is loose. This direction is abnormal and the reporting system will issue an alarm reminder.

7. The method according to claim 6, characterized in that: The tilt angle self-tracking module includes an abnormality tracking unit and a reinforcement warning unit; The abnormality tracking unit is used to track the inclination angle of the drilling platform at the current moment in real time through a data tracker; The reinforcement warning unit is used to open the reinforcement tightening device in the current direction through the signal transmitter when it is judged that the drilling platform is abnormal, and send out a reinforcement warning signal to feedback manual processing.

8. The method according to claim 1, characterized in that: The tilt correction end includes an abnormal receiving module, a step-by-step progressive module and a correction influence module; The abnormal receiving module includes an abnormal receiving unit and a direction determining unit; The abnormal receiving unit is used to receive the abnormal direction, reinforcement warning signal and inclination deviation value of the drilling platform in real time through a data receiver; The direction determination unit is used to receive the abnormal direction of the drilling platform in real time based on the calculation of the southeast, northwest and northeast directions.

9. The method according to claim 8, characterized in that: The step-by-step progressive module includes a step-by-step progressive unit and a correction tracking unit; The step-by-step progressive unit is used to divide the inclination deviation value into three correction levels, taking one third of the inclination deviation value as a correction value, and continuing the correction three times; The correction tracking unit is used to calculate the values ​​of the inclination angle before and after correction in real time through a data tracker and an inclination calculation formula, and calculate the difference. If the difference = 0, it means that the correction is invalid, and if the difference ≠ 0, it means that the correction is valid.

10. The method according to claim 9, characterized in that: The correction impact module includes a correction reinforcement unit, a sea area impact unit and a correction alarm unit; The correction reinforcement unit is used to reinforce the direction in which the drilling platform has deviated from the inclination angle for the second time according to the reinforcement equipment; The sea area impact unit is used to analyze the use status of the drilling platform and the sea area impact through the corrected inclination angle, and to detect the oil field status of the sea area in real time through the oil field detector and water quality detection equipment; The correction alarm unit is used to immediately report to the system to issue a voice alarm and feedback for manual processing when it is tracked that the correction is invalid.

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