A tertiary oil recovery detection method and apparatus based on oil storage

Abstract

The application discloses a tertiary oil recovery detection method and equipment based on oil storage, relates to the technical field of oil detection, and comprises the following steps: confirming the depth information of an oil reservoir, estimating the oil product information of crude oil according to the depth information, obtaining an estimation result, and selecting a target oil storage tank corresponding to the crude oil according to the estimation result; confirming the tank body structure of the target oil storage tank, establishing a detection scheme according to the tank body structure and the oil product information, and performing corresponding detection according to the detection scheme to obtain a detection result, so as to determine an associated oil tank according to the detection result; reserving the associated oil tank to make the associated oil tank in a sealed state, and determining whether the oil reservoir is a tertiary oil recovery; if the oil reservoir is a tertiary oil recovery, the associated oil tank is opened, and the oil of the tertiary oil recovery is stored in the associated oil tank. According to the application, the depth information of the oil reservoir is confirmed to estimate the oil product information and select the target oil storage tank, and the detection scheme is formulated according to the tank body structure and the oil product information, so that the comprehensiveness and accuracy of detection are ensured.

Description

Technical Field

[0001] This application relates to the field of petroleum testing technology, and in particular to a method and equipment for tertiary oil recovery testing based on petroleum storage. Background Technology

[0002] In recent years, oil storage has faced various safety challenges, including fire and explosion prevention, static electricity prevention, oil mixing prevention, oil spill prevention, oil poisoning prevention, and accident prevention, as well as reducing oil volatility. Furthermore, tertiary oil recovery is a technology currently used to enhance the recovery rate of crude oil in oilfields. This technology uses physical, chemical, or biological methods after oil extraction to further improve the recovery rate. Storage tanks play a crucial role in the tertiary oil recovery process; problems with these tanks can reduce the recovery rate of tertiary oil recovery technology, resulting in financial losses. Summary of the Invention

[0003] To address the aforementioned problems, this application proposes a method for detecting tertiary oil recovery based on oil storage, comprising: confirming the depth information of the oil reservoir; estimating the oil quality information of the crude oil based on the depth information to obtain an estimation result; selecting a target oil storage tank corresponding to the crude oil based on the estimation result; the oil quality information including oil composition, component ratio, and compound type; confirming the tank structure of the target oil storage tank; establishing a detection plan based on the tank structure and the oil quality information; performing corresponding detections according to the detection plan to obtain detection results; determining associated oil tanks based on the detection results; reserving the associated oil tanks to ensure they are in a sealed state; determining whether the oil reservoir is a tertiary oil recovery reservoir; if the oil reservoir is a tertiary oil recovery reservoir, opening the associated oil tanks and storing the tertiary oil in the associated oil tanks.

[0004] In one example, the method further includes: transferring the crude oil from the oil storage tank according to the detection result; confirming the target output volume provided by the transporter, determining the planned output volume according to the target output volume, and starting the output of the oil storage tank according to the planned output volume; confirming the volumetric calorific value of the crude oil according to the oil information, determining the output energy of the oil storage tank outputting the crude oil to the transporter according to the volumetric calorific value and the planned output volume, and determining the actual output volume according to the output energy.

[0005] In one example, a detection plan is established based on the tank structure and the oil information, specifically including: confirming the reserve type of the oil storage tank according to the tank type, the reserve type including unusable reserves and usable reserves; if the oil storage tank is an unusable reserve, then based on the oil information of the crude oil in the oil storage tank, confirming a first detection plan for the oil storage tank, and sealing and protecting the input pipeline switch and output pipeline switch of the oil storage tank; if the oil storage tank is a usable reserve, then based on the oil information of the crude oil in the oil storage tank, confirming a second detection plan for the oil storage tank, and reviewing the output application corresponding to the oil storage tank.

[0006] In one example, the detection according to the detection scheme includes: extracting crude oil samples from the oil storage tank for emulsification detection to obtain the emulsification value of the crude oil in the oil storage tank; confirming the emulsification threshold of the crude oil based on the depth information and comparing the emulsification value with the emulsification threshold; if the emulsification value is greater than the emulsification threshold, a shutdown command is sent to the input pipeline switch of the oil storage tank to stop receiving the input application from the reservoir, and binary composite displacement is performed on the oil storage tank to reduce the emulsification value of the crude oil in the oil storage tank.

[0007] In one example, the method further includes: identifying a backup storage tank with the same oil information as the oil storage tank based on the oil information, wherein the output pipe of the oil storage tank is connected to the input pipe of the corresponding backup storage tank, and the input pipe of the backup storage tank is also connected to the oil reservoir; if the detection result of the oil storage tank is abnormal, the crude oil in the oil storage tank is transferred to the corresponding backup storage tank, and the crude oil in the oil reservoir is input to the corresponding backup storage tank.

[0008] In one example, the detection according to the detection scheme specifically includes: detecting the gas composition in the oil storage tank using a flue gas analyzer to confirm the gas information in the tank, the gas information including at least the oxygen concentration; determining the concentration change function corresponding to each gas component based on the concentration information of each gas component in the gas information, analyzing the concentration change function to obtain the analysis result; predicting the spontaneous combustion of flue gas in the oil storage tank based on the analysis result to obtain the prediction result; if the prediction result determines that the probability of spontaneous combustion of flue gas at a future specified time point exceeds a preset threshold, then closing the pipeline switch of the oil storage tank and transferring the crude oil in the oil storage tank to the backup storage tank until the probability of spontaneous combustion of flue gas in the oil storage tank is less than the preset threshold.

[0009] In one example, the tank inspection includes routine inspection and safety inspection. The routine inspection includes, but is not limited to, the tank capacity of the oil storage tank and the connectivity of the input and output pipelines. The safety inspection includes, but is not limited to, the tank temperature, the gas conditions inside the tank, and the corrosion condition of the tank. The method further includes: confirming the inspection status of the oil storage tank to control the input and output conditions of the oil storage tank; if the oil storage tank is under safety inspection, a shutdown command is sent to the input and output pipeline switches of the corresponding standby tank.

[0010] In one example, the method further includes: based on the transporter's output request, confirming the target output quantity of the crude oil requested by the transporter and the oil information based on the output request, confirming the oil density based on the oil information, and confirming the crude oil output volume based on the oil density and the target output quantity, and confirming the planned output quantity based on the crude oil output volume; opening the output pipeline switch corresponding to the oil storage tank based on the crude oil output volume, and monitoring the actual output quantity of the oil storage tank through a flow sensor on the output pipeline.

[0011] In one example, applied to a tertiary oil recovery detection system based on oil storage, the system further includes a control panel, a detection module, and a server. Before performing tank body detection and crude oil composition detection on the oil storage tank according to the detection plan, the method further includes: confirming the employee's identity information and operation instructions through the control panel, and sending the identity information and operation instructions to the server; logging into the system through the server based on the identity information and confirming the employee's operation permissions; confirming the employee's detection application through the server based on the operation instructions, confirming the detection instructions based on the detection application, and sending the detection instructions to the detection module to detect the oil storage tank; and according to the detection plan... After performing tank body inspection and crude oil composition analysis on the oil storage tank, the method further includes: confirming the inspection results of the oil storage tank through the server and sending the inspection results to the control panel; establishing a corresponding inspection log for the oil storage tank through the server and synchronously updating the inspection results to the inspection log; sending the inspection instruction to the inspection module according to the pre-defined periodic inspection program in the server to perform periodic inspections on the oil storage tank and synchronously updating the periodic inspection results to the inspection log; determining the employee's modification request through the control panel and sending the modification request to the server, and performing the periodic inspection program on the server according to the modification request. Modified; the detection module includes a corrosion detection module, a gas detection module, a temperature detection module, and a liquid level detection module. The corrosion detection module includes a thickness detection module and a magnetic flux leakage detection module. The liquid level detection module includes an ultrasonic transmitting module, an ultrasonic receiving module, and a data processing module. The detection of the oil storage tank specifically includes: determining a corrosion detection instruction based on the detection command, and sending the corrosion detection instruction to the corrosion detection module via the server; detecting the tank thickness of the oil storage tank via the thickness detection module and sending the tank thickness to the server; and detecting the porosity and corrosion pits of the bottom plate of the oil storage tank via the magnetic flux leakage detection module and recording the porosity and corrosion pits. The system sends information about the pit condition to the server; it determines a gas detection instruction based on the detection instruction, and sends the gas detection instruction to the gas detection module via the server. The gas detection module detects the gas composition at the vent of the oil storage tank and sends the gas composition information to the server; it determines a temperature detection instruction based on the detection instruction, and sends the temperature detection instruction to the temperature detection module via the server. The temperature detection module measures the internal temperature of the oil storage tank and the ambient temperature, and sends the internal temperature and the ambient temperature information to the server; it determines a liquid level detection instruction based on the detection instruction, and sends the liquid level detection instruction to the liquid level detection module via the server.According to the liquid level detection command, ultrasonic waves are emitted towards the oil surface in the oil storage tank via the ultrasonic transmitting module, the returned ultrasonic waves are received by the ultrasonic receiving module, and the liquid level data is confirmed by the data processing module; the liquid level data is then sent to the server.

[0012] On the other hand, this application also proposes a tertiary oil recovery detection device based on oil storage, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the tertiary oil recovery detection device based on oil storage to perform the method described in any of the above examples.

[0013] This application improves the targeting and efficiency of crude oil storage and reduces resource waste by estimating oil quality information based on reservoir depth and selecting target oil storage tanks accordingly. A testing plan is developed based on tank structure and oil quality information to ensure comprehensive and accurate testing. Simultaneously, by reserving and managing associated oil tanks, an effective storage solution is provided for tertiary oil recovery. During the testing process, potential safety hazards, such as excessive emulsification values ​​and spontaneous combustion of flue gas, are promptly identified and addressed through emulsification detection and flue gas analysis, ensuring the safe operation of the oil storage tanks. Intelligent management and testing of oil storage tanks are achieved through the collaborative work of the control panel, testing modules, and server. The development and execution of periodic testing procedures ensure the long-term stable operation of the storage tanks. Planned output is determined based on oil quality information and target output volume, and actual output is monitored through flow sensors, achieving efficient management of crude oil output and maximizing resource utilization. This application is not only applicable to tertiary oil recovery testing but can also be expanded and optimized according to actual needs, such as adding management of backup storage tanks and modifying periodic testing procedures, improving the system's flexibility and adaptability, increasing crude oil storage efficiency, ensuring safe tank operation, and optimizing resource utilization. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a flowchart illustrating a method for detecting tertiary oil recovery based on oil storage, as described in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the concentration change function of each gas component in the embodiments of this application;

[0017] Figure 3This is a schematic diagram of a tertiary oil recovery detection device based on oil storage, as described in an embodiment of this application. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, this application provides a method for detecting tertiary oil recovery based on oil storage, applied in a tertiary oil recovery detection system based on oil storage. The method includes:

[0021] S101. Confirm the depth information of the oil reservoir, estimate the oil quality information of the crude oil based on the depth information, obtain the estimation result, and select the target oil storage tank corresponding to the crude oil based on the estimation result.

[0022] Based on depth, oil reservoirs can be divided into shallow, intermediate-deep, deep, and ultra-deep reservoirs. Crude oil extracted from different depths exhibits variations in the structure and proportion of various hydrocarbons. Different types of crude oil require different processing methods, resulting in different product properties; therefore, resources should be utilized to their fullest potential. After confirming the reservoir's depth information, the oil quality information of the crude oil is estimated based on the reservoir depth. Crude oil from different reservoirs is then transported to corresponding oil storage tanks for storage, facilitating further processing of the crude oil products. This oil quality information includes oil composition, component proportions, and compound types.

[0023] S102. Confirm the tank structure of the target oil storage tank, establish a detection plan based on the tank structure and the oil information, and conduct corresponding detections according to the detection plan at different input stages of the crude oil to obtain detection results, so as to determine the associated oil tank based on the detection results.

[0024] The tank structure of the oil storage tanks is confirmed, including cylindrical and spherical tanks. A corresponding inspection plan is established based on the tank structure and oil product information. For example, the inspection locations of the oil storage tank are identified according to the structural type, and corresponding inspection plans are determined for each location. For cylindrical tanks, inspection plans are established for the bottom, walls, top, and accessories. The top structure can be categorized as: moment-free roof tanks, dome-shaped roof tanks, conical roof tanks, internal floating roof tanks, and floating roof tanks. Appropriate inspection plans are designed for different roof structures. For spherical tanks, inspection plans are established for the ladder platform, manholes and connecting pipes, fire sprinkler systems, heat insulation and cold preservation facilities, level gauges, and pressure gauges. The oil storage tanks are inspected at different stages of crude oil input, such as before and after crude oil input. Based on the established inspection plans, tank body inspections and crude oil composition analysis are performed, and the storage status of the oil storage tanks is adjusted according to the inspection results. For example, if an abnormality is found in the tank body of an oil storage tank, the crude oil in that tank will be moved to another tank for storage; if the composition of an oil storage tank fails the test, the crude oil in that tank will be removed for further component processing.

[0025] S103. Reserve the associated oil tank to ensure that the associated oil tank is in a sealed state, and determine whether the oil reservoir is a tertiary oil recovery facility;

[0026] S104. If the oil reservoir is a tertiary oil recovery facility, the associated oil tank is opened to store the tertiary oil in the associated oil tank.

[0027] Reserved associated oil tanks ensure that a ready and well-maintained container is available when further storage of oil from a specific reservoir is needed. The associated oil tanks are placed in a specific, pre-defined state: a sealed state. A sealed state not only means that the inlet and outlet valves of the tank are strictly closed to prevent the entry of any external substances or air, but also that the internal environment of the tank is carefully controlled to maintain the quality and stability of the oil. After reserving the associated oil tanks in a sealed state, it is determined whether the reservoir is a tertiary oil recovery site. This typically involves an in-depth analysis of the reservoir's geological characteristics, extraction history, and current extraction conditions. If, after comprehensive evaluation, it is confirmed that the reservoir does indeed fall under the category of tertiary oil recovery—meaning its extraction is more difficult and requires more advanced technologies and methods to extract the remaining oil—then the previously reserved associated oil tanks are opened. The opening process must strictly adhere to safety operating procedures to ensure that no leaks or safety hazards occur when opening the valves. Once the associated oil tanks are successfully opened, the tertiary oil can be safely and efficiently transported to the tanks for storage through a dedicated pipeline system. Storing recovered oil in associated tanks not only helps protect these valuable resources from environmental pollution and damage, but also facilitates subsequent oil processing and utilization. Furthermore, effective management and monitoring ensure that this oil can be extracted promptly and accurately when needed to meet market demands and industrial production requirements.

[0028] In one embodiment, a target output volume provided by the transporter is confirmed, a planned output volume is determined based on the target output volume, and the output from the oil storage tank is started based on the planned output volume.

[0029] Before applying to have crude oil discharged from storage tanks, the transporter must first provide a target discharge volume. Because the transporter and the storage provider use different methods or units of measurement, discharging crude oil from the tanks according to the target volume might result in energy waste. Therefore, further confirmation of the discharge volume is necessary. The storage provider then determines the planned discharge volume of the storage tanks based on the target volume and begins discharging oil according to that planned volume. For example, if the transporter provides a planned discharge volume measured by mass, the volume of crude oil corresponding to that mass needs to be converted and used as the target discharge volume.

[0030] In one embodiment, the volumetric calorific value of the crude oil is determined based on the oil product information, the output energy of the crude oil from the oil storage tank to the transporter is determined based on the volumetric calorific value and the planned output amount, and the actual output amount is determined based on the output energy.

[0031] Crude oil hydrocarbons, based on their structure, can be broadly classified into alkanes, cycloalkanes, aromatics, and unsaturated hydrocarbons. The calorific value of crude oil is determined by the heat released when various combustible hydrocarbons are completely burned. Since different types of combustible hydrocarbons release different amounts of heat, the calorific value per unit volume of crude oil varies depending on its composition. Based on information about different oil products, crude oil samples are extracted from oil storage tanks storing different types of crude oil. The calorific value per unit volume of this crude oil is determined according to the national standard GB / T 384-1981, "Determination of Calorific Value of Petroleum Products," i.e., the volumetric calorific value. Based on this volumetric calorific value, the crude oil energy corresponding to the planned output is calculated, i.e., the output energy of the crude oil from the storage tank to the transporter. The actual output of the oil storage tank is then controlled based on this output energy.

[0032] A flow sensor, specifically a volumetric flow sensor, is installed on the output pipeline of the oil storage tank. This sensor acquires the volumetric flow rate information of the oil storage tank's output pipeline. Based on this volumetric flow rate information and the volumetric calorific value of the crude oil, the energy flow rate information of the oil storage tank's output pipeline is determined, and the actual output is monitored using this energy flow rate information.

[0033] In one embodiment, the reserve type of the oil storage tank is determined based on the tank type, which includes unavailable reserves and available reserves. If the oil storage tank is an unavailable reserve, the crude oil inside cannot be accessed, and the input and output pipeline switches of the oil storage tank need to be sealed for protection to facilitate the sealed storage of the unavailable reserves. During the sealed storage period, a periodic inspection plan (here referred to as the first inspection plan) is established based on the oil quality information of the crude oil inside the oil storage tank and the tank type. If the oil storage tank is an available reserve, the crude oil inside the oil storage tank can be accessed. The corresponding output application for the oil storage tank is reviewed, and if approved, the crude oil inside the oil storage tank is discharged. A periodic inspection plan (here referred to as the second inspection plan) is established based on the oil quality information of the crude oil inside the oil storage tank and the tank type. Compared to the second detection scheme, the first detection scheme differs in the following ways: First, the detection cycle is shorter; second, the detection content is different, with more items tested in the first scheme; third, the detection standards are higher; and fourth, the timing of the detection differs, as the first scheme can be implemented at any time, while the second scheme requires detection only when available oil storage tanks are no longer in use. The tertiary oil recovery detection system, based on oil storage, establishes detection schemes for different types of oil storage tanks to automate their detection.

[0034] In one embodiment, after an activation command is sent to the input pipeline switch of the oil storage tank, the oil storage tank receives crude oil from the reservoir. Because the crude oil contains water, it will emulsify, requiring the removal of water from the oil storage tank. A crude oil sample is extracted from the crude oil transferred from the reservoir, and an emulsification test is performed on the sample to obtain the emulsification value of the crude oil in the oil storage tank. Based on the reservoir depth information, an emulsification threshold is determined, which is the optimal water content value for the crude oil produced from that reservoir. The detected emulsification value is compared with the emulsification threshold. If the emulsification value is greater than the threshold, a deactivation command is sent to the input pipeline switch of the oil storage tank, stopping the receipt of input requests from the reservoir, and binary composite oil displacement is performed on the oil storage tank to reduce the emulsification value of the crude oil in the tank. Binary composite oil displacement technology overcomes the low efficiency of single oil displacement agents by utilizing the super-addition synergistic effect of a binary composite system of surfactants and polymers, significantly improving oil displacement efficiency. Injecting petroleum sulfonates, surfactants, and polymers into crude oil in different proportions can effectively reduce oil-water interfacial tension and improve oil washing efficiency. Crude oil with an interfacial tension of 10⁻² to 10⁻¹ mN / m is considered low interfacial tension, while interfacial tension below 10⁻³ mN / m is considered ultra-low interfacial tension. Low oil-water interfacial tension means low adhesion work, which improves oil washing efficiency. Binary composite flooding can both expand the swept volume and improve oil washing efficiency, resulting in a greater increase in oil recovery than single polymer flooding. It reduces crude oil emulsification, is easy to handle, lowers processing costs, and prevents alkali scaling. It is easy to operate on-site and inject normally, making it an effective oil displacement technology.

[0035] In one embodiment, under certain circumstances, oil storage tanks may malfunction and become unable to continue storing crude oil. Therefore, based on oil quality information, an oil storage tank with the same oil quality information as the crude oil in the malfunctioning tank is designated as a backup tank. The input pipeline of this backup tank is connected to the output pipeline of its corresponding oil storage tank, and the input pipeline of the backup tank is also connected to the corresponding reservoir. If the test results of an oil storage tank are abnormal, for example, if the tank body shows corrosion or leakage, or if the gas composition inside the tank is unqualified, the crude oil in that oil storage tank is transferred to the corresponding backup tank for further inspection and repair. Furthermore, the reservoir that supplies crude oil to the malfunctioning oil storage tank will transfer the crude oil to the backup tank.

[0036] In one embodiment, crude oil in an oil storage tank may leak due to collisions during loading and unloading, or due to corrosion of the tank, leading to the entry of combustible gases, such as oxygen. As these combustible gases accumulate, the risk of spontaneous combustion or even explosion increases. Therefore, in this embodiment, a flue gas analyzer is used to detect the gas composition within the oil storage tank, confirming the gas information. This gas information includes at least the concentrations of oxygen (O2), total hydrocarbons (HC), carbon monoxide (CO), and carbon dioxide (CO2). The concentration information of each gas component is analyzed, such as... Figure 2 As shown, the concentration change function corresponding to each gas component is determined, and the concentration change function is analyzed. Based on the existing concentration change curves, the trend of gas concentration change in the tank is predicted, thereby predicting the spontaneous combustion of flue gas in the oil storage tank. If, according to the prediction results, the probability of spontaneous combustion of flue gas in the tank exceeds a preset threshold at a specified future time, the pipeline switch of the oil storage tank is closed, and the crude oil in the oil storage tank is transferred to a standby storage tank. This continues until the probability of spontaneous combustion of flue gas in the oil storage tank is less than the preset threshold, at which point the pipeline of the oil storage tank is reopened, and the transfer of crude oil to the standby storage tank is stopped.

[0037] In one embodiment, the inspection of an oil storage tank includes routine inspection and safety inspection. Routine inspection items include, but are not limited to, the tank capacity and the connectivity of the input and output pipelines. Safety inspection items include, but are not limited to, the tank temperature, the gas conditions inside the tank, and the corrosion status of the tank. A first inspection plan includes all routine inspection items and all safety inspection items, and both types of tank inspections are performed simultaneously. A second inspection plan includes all routine inspection items and some safety inspection items. Because safety inspections need to be performed with the tank and pipelines closed, the routine inspection cycle in the second inspection plan is shorter than the safety inspection cycle. The selection of safety inspection items in the second inspection plan is determined based on the structural type of the oil storage tank and the composition of the crude oil. For example, for oil storage tanks with a high content of hazardous components in the crude oil, the safety inspection items in the second inspection plan must at least include the tank temperature and the gas conditions inside the tank; for oil storage tanks with a high corrosion rate of the crude oil, the safety inspection items in the second inspection plan must at least include the tank temperature and the corrosion status of the tank.

[0038] The tertiary oil recovery monitoring system based on oil storage monitors the monitoring status of oil storage tanks in real time to control the input and output of the oil storage tanks. For example, for a usable reserve oil storage tank that is undergoing safety testing, the system will reject the input and output requests of the oil storage tank and send a shutdown command to the input and output pipeline switches of the standby tank.

[0039] In one embodiment, the transporter's output request is analyzed to obtain the transporter's planned output volume. Since crude oil with different compositions has varying energy per unit volume or mass, and there are inconsistencies in measurement units between transporters and crude oil storage providers, rashly transporting crude oil based solely on the planned output volume in the transporter's request would result in energy waste. In this application, the energy and information of the crude oil requested by the transporter are further confirmed based on the planned output volume. This information includes the crude oil density. The crude oil output volume is obtained based on the oil density and energy, and this output volume represents the actual output from the oil storage tank to the transporter. The actual output flow rate is obtained based on the crude oil output volume, and the corresponding oil storage tank's output pipeline switch is opened. The flow rate of the oil pipeline is monitored using a flow sensor on the output pipeline, thus monitoring the actual output of the oil storage tank.

[0040] In one embodiment, the tertiary oil recovery detection system based on oil storage also includes a control panel, a detection module, and a server.

[0041] Before conducting tank body inspection and crude oil composition analysis of the oil storage tank according to the testing plan, the methods also include:

[0042] Employees log in using their identity information, and the server verifies their identity and operational instructions via the control panel. Based on the identity information, the server logs in to the system and confirms the employee's operational permissions. With these permissions, the employee can initiate a testing plan for the oil storage tank. Based on the employee's instructions on the control panel, the server confirms the employee's testing request, which includes information such as the testing object, testing plan, testing time, and testing logs. The server generates testing instructions based on the testing request and sends these instructions to the oil storage tank's testing module to perform the testing.

[0043] After conducting tank body inspection and crude oil composition analysis on the oil storage tank according to the testing plan, the methods also include:

[0044] The server confirms the inspection results of the oil storage tank and sends them to the control panel for employees to view. The server also creates an inspection log for the oil storage tank and updates the log with the inspection results.

[0045] The system sends inspection commands to the inspection module based on a pre-defined periodic inspection program on the server to conduct periodic inspections of the oil storage tanks, and synchronously updates the inspection results to the inspection log of the oil storage tank. Employees can modify the periodic inspection program in the system via a control panel. The control panel confirms the employee's modification request and sends it to the server. The server modifies the periodic inspection program based on the modification request, including changes to the inspection cycle, inspection items, and inspection permissions.

[0046] In one embodiment, the detection module includes a corrosion detection module, which further comprises a thickness detection module and a magnetic flux leakage (MFL) detection module. When performing corrosion detection on an oil storage tank, the server determines a corrosion detection instruction based on the detection command and sends it to the corrosion detection module. The corrosion detection module then uses the thickness detection module to detect the tank body thickness and sends the thickness data to the server. The MFL detection module detects the porosity and corrosion pits in the bottom plate of the oil storage tank. This MFL detection module uses ultrasonic and phased array flaw detectors to inspect weld defects or corrosion. The porosity and corrosion pit information is then sent to the server.

[0047] The detection module also includes a gas detection module and a temperature detection module. When performing gas detection on the oil storage tank, the server determines the gas detection command based on the detection instruction and sends it to the gas detection module. The gas detection module uses an optical gas detector to detect the gas composition at the oil storage tank's vent and sends the gas composition data to the server.

[0048] The service determines the temperature detection command based on the detection instruction and sends it to the temperature detection module. The temperature detection module includes an internal temperature module and an external temperature module. The internal temperature module is located inside the oil storage tank, and the external temperature module is located in the external environment. The temperature detection module begins measuring the internal temperature of the oil storage tank and the ambient temperature, and then sends both temperatures to the server.

[0049] The detection module also includes a liquid level detection module, which comprises an ultrasonic transmitting module, an ultrasonic receiving module, and a data processing module. When detecting the liquid level in an oil storage tank, the server determines the liquid level detection command based on the detection instruction and sends it to the liquid level detection module. According to the liquid level detection command, the ultrasonic transmitting module emits ultrasonic waves towards the oil surface in the oil storage tank. The ultrasonic receiving module receives the ultrasonic waves returning from the liquid surface and records the propagation time of the ultrasonic waves. This propagation time is sent to the data processing module. Based on the propagation time of the ultrasonic waves, the data processing module uses the speed of sound in air to calculate the position of the oil surface in the oil storage tank and sends this liquid level data to the server.

[0050] like Figure 3 As shown, this application also proposes a tertiary oil recovery detection device based on oil storage, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the tertiary oil recovery detection device based on oil storage to perform the method described in any of the above embodiments.

[0051] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device and medium embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the description of the method embodiments.

[0052] The devices and media provided in this application are one-to-one with the methods. Therefore, the devices and media also have similar beneficial technical effects as their corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the devices and media will not be repeated here.

[0053] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0054] 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.

[0055] 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.

[0056] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable apparatus 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.

[0057] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0058] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0059] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0060] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0061] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for detecting tertiary oil recovery based on oil reserves, characterized in that, include: Confirm the depth information of the oil reservoir, estimate the oil quality information of the crude oil based on the depth information, obtain the estimation result, and select the target oil storage tank corresponding to the crude oil based on the estimation result. The oil quality information includes oil composition, composition ratio, and compound type. The tank structure of the target oil storage tank is confirmed, a detection plan is established based on the tank structure and the oil information, and corresponding detection is carried out according to the detection plan to obtain the detection results, so as to determine the associated oil tank based on the detection results; Reserved space for the associated oil tanks to ensure that the associated oil tanks are in a sealed state, and determine whether the oil reservoir is a tertiary oil recovery facility; If the oil reservoir is a tertiary oil recovery reservoir, the associated oil tank is opened and the tertiary oil is stored in the associated oil tank. The corresponding tests are performed according to the aforementioned test plan, specifically including: Crude oil samples were extracted from the oil storage tank for emulsification testing to obtain the emulsification value of the crude oil in the oil storage tank. Based on the depth information, the emulsification threshold of the crude oil is determined, and the emulsification value is compared with the emulsification threshold, wherein the emulsification threshold is the optimal value for water content of crude oil produced from the reservoir; If the emulsification value is greater than the emulsification threshold, a shutdown command will be sent to the input pipeline switch of the oil storage tank to stop receiving input requests from the reservoir, and binary composite displacement will be performed on the oil storage tank to reduce the emulsification value of the crude oil in the oil storage tank.

2. The method according to claim 1, characterized in that, The method further includes: Based on the test results, the crude oil in the oil storage tank will be transferred. Confirm the target output volume provided by the transporter, determine the planned output volume based on the target output volume, and start the output from the oil storage tank based on the planned output volume; The volumetric calorific value of the crude oil is determined based on the oil product information. The output energy of the crude oil from the oil storage tank to the transporter is determined based on the volumetric calorific value and the planned output volume. The actual output volume is determined based on the output energy.

3. The method according to claim 1, characterized in that, A detection plan is established based on the tank structure and the oil information, specifically including: The reserve type of the oil storage tank is determined according to the tank type, and the reserve type includes unavailable reserves and available reserves; If the oil storage tank is an unusable reserve, then based on the oil quality information of the crude oil in the oil storage tank, the first detection plan for the oil storage tank is confirmed, and the input pipeline switch and output pipeline switch of the oil storage tank are sealed and protected. If the oil storage tank is the available reserve, then based on the oil quality information of the crude oil in the oil storage tank, the second detection plan for the oil storage tank is confirmed, and the output application corresponding to the oil storage tank is reviewed.

4. The method according to claim 2, characterized in that, The method further includes: Based on the oil information, a backup storage tank with the same oil information as the oil storage tank is identified. The output pipe of the oil storage tank is connected to the input pipe of the corresponding backup storage tank, and the input pipe of the backup storage tank is also connected to the oil reservoir. If the detection result of the oil storage tank is abnormal, the crude oil in the oil storage tank will be transferred to the corresponding backup storage tank, and the crude oil in the oil reservoir will be input into the corresponding backup storage tank.

5. The method according to claim 4, characterized in that, The corresponding tests are performed according to the aforementioned test plan, specifically including: The gas composition inside the oil storage tank is detected by a flue gas analyzer to confirm the gas information inside the tank, which includes at least the oxygen concentration. Based on the concentration information of each gas component contained in the gas information, the concentration change function corresponding to the gas component is determined, the concentration change function is analyzed, and the analysis result is obtained. Based on the analysis results, the spontaneous combustion of flue gas in the oil storage tank is estimated, and the estimated results are obtained. If, based on the estimated results, it is determined that the probability of spontaneous combustion of the flue gas at a specified future time exceeds a preset threshold, then the pipeline switch of the oil storage tank is closed, and the crude oil in the oil storage tank is transferred to the backup storage tank until the probability of spontaneous combustion of the flue gas in the oil storage tank is less than the preset threshold.

6. The method according to claim 4, characterized in that, Tank inspection includes routine inspection and safety inspection. The routine inspection includes the tank capacity of the oil storage tank and the connectivity of the input and output pipelines. The safety inspection includes the tank temperature, the gas conditions inside the tank, and the corrosion condition of the tank. The method further includes: The detection status of the oil storage tank is confirmed in order to control the input and output of the oil storage tank; If the oil storage tank is under safety monitoring, a shutdown command will be sent to the input and output pipeline switches of the corresponding backup storage tank.

7. The method according to claim 2, characterized in that, The method further includes: Based on the transporter's output request, the target output quantity and oil information of the crude oil requested by the transporter are confirmed based on the output request. The oil density is confirmed based on the oil information. The crude oil output volume is confirmed based on the oil density and the target output quantity. The planned output quantity is confirmed based on the crude oil output volume. The corresponding output pipeline switch of the oil storage tank is opened according to the crude oil output volume, and the actual output of the oil storage tank is monitored by the flow sensor on the output pipeline.

8. The method according to claim 2, characterized in that, The system is used in a tertiary oil recovery detection system based on oil storage, and the system also includes a control panel, a detection module, and a server. Before performing tank body inspection and crude oil composition analysis on the oil storage tank according to the aforementioned testing plan, the method further includes: The system confirms the employee's identity information and operation instructions through the control panel, and then sends the identity information and operation instructions to the server. Based on the identity information, the system login is performed through the server to confirm the employee's operating permissions; According to the operation instructions, the server confirms the employee's testing application, confirms the testing instructions based on the testing application, and sends the testing instructions to the testing module to test the oil storage tank; After performing tank body inspection and crude oil composition analysis on the oil storage tank according to the aforementioned testing plan, the method further includes: The server confirms the detection results of the oil storage tank and sends the detection results to the control panel. The server establishes a corresponding detection log for the oil storage tank, and the detection results are synchronously updated to the detection log. According to the pre-defined periodic inspection program in the server, the inspection command is sent to the inspection module to conduct periodic inspections of the oil storage tank, and the periodic inspection results are synchronously updated to the inspection log. The modification request from the employee is determined through the control panel, and the modification request is sent to the server. The periodic detection program of the server is modified according to the modification request. The detection module includes a corrosion detection module, a gas detection module, a temperature detection module, and a liquid level detection module. The corrosion detection module includes a thickness detection module and a magnetic flux leakage detection module. The liquid level detection module includes an ultrasonic transmitting module, an ultrasonic receiving module, and a data processing module. The inspection of the oil storage tank specifically includes: A corrosion detection instruction is determined based on the detection instruction, and the corrosion detection instruction is sent to the corrosion detection module through the server; The thickness detection module detects the thickness of the oil storage tank and sends the thickness to the server. The leakage magnetic field detection module is used to detect the holes and corrosion pits in the bottom plate of the oil storage tank, and the results are sent to the server. A gas detection instruction is determined according to the detection instruction, and the gas detection instruction is sent to the gas detection module through the server. The gas detection module detects the gas composition at the vent of the oil storage tank and sends the gas composition to the server. A temperature detection instruction is determined according to the detection instruction, and the temperature detection instruction is sent to the temperature detection module through the server. The temperature detection module measures the internal temperature and ambient temperature of the oil storage tank, and sends the internal temperature and ambient temperature to the server. The liquid level detection instruction is determined according to the detection instruction, and the liquid level detection instruction is sent to the liquid level detection module through the server; According to the liquid level detection command, the ultrasonic transmitting module emits ultrasonic waves to the oil surface in the oil storage tank, the ultrasonic receiving module receives the returned ultrasonic waves, and the data processing module confirms the liquid level data. The liquid level data is sent to the server.

9. A tertiary oil recovery detection device based on oil storage, characterized in that, include: At least one processor; as well as, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, which, when executed by the at least one processor, enable the oil storage-based tertiary oil recovery detection device to perform the method as described in any one of claims 1-8.

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