Gathering and transportation method and device for high-condensation-point and high-viscosity crude oil, storage medium and electronic equipment

Abstract

The invention relates to a gathering and transportation method and device for high-pour-point and high-viscosity crude oil, a storage medium and electronic equipment. The method comprises the steps that oil well main basic parameters influencing gathering and transportation are determined based on an obtained oil well basic parameter set, and a wall sticking temperature calculation model is established; aiming at each oil well with different oil well crude oil physical property parameters, respectively acquiring each parameter value of the oil well under the main basic parameters of the oil well in the gathering and transportation, solving the constructed wall sticking temperature calculation model based on the parameter values, and acquiring the value of the infinite outline constant; based on a wall-sticking temperature calculation model of the infinite outline constant value, solving the corresponding wall-sticking temperature under each condition, and constructing a normal-temperature gathering and transportation temperature limit prediction table corresponding to the crude oil physical property parameter value of each oil well; and according to the oil well crude oil physical property parameter value of the target oil well, a corresponding target normal temperature gathering and transportation temperature limit prediction table is obtained, the gathering and transportation temperature is determined according to the water content and the liquid production capacity of the target oil well, and the gathering and transportation process of the target oil well is obtained based on the gathering and transportation temperature. And gathering and transportation energy consumption and cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas gathering and transportation in oil fields, and in particular to a method, device, storage medium and electronic equipment for gathering and transportation of high-freezing and high-viscosity crude oil. Background Art

[0002] For the transportation of high-freezing and high-viscosity crude oil, in order to ensure the pipeline gathering and transportation requirements and prevent the pipeline from freezing and blocking, the operating temperature of the pipeline end point is usually set to be 3-5°C higher than the freezing point of the crude oil. Therefore, for high-freezing and high-viscosity crude oil with high freezing point and viscosity, a series of gathering and transportation measures need to be taken to ensure the transportation of crude oil, such as double-pipe water-mixing gathering and transportation process, single-pipe heating gathering and transportation process, pipeline heating gathering and transportation process, etc. However, although the use of water-mixing or heating gathering and transportation pipelines can ensure the normal operation of heavy oil gathering and transportation, there are problems such as long process flow and high operating energy consumption. In addition, the water-mixing gathering and transportation process also has the problems of high operating temperature, high mineralization, and strong corrosion and scaling, resulting in high failure rate of gathering and transportation and water-mixing pipelines.

[0003] As old onshore oil fields enter the high water content period, the flow characteristics of crude oil have changed significantly, and it is generally high-viscosity crude oil. However, the gathering and transportation processes such as the double-tube water-blending gathering and transportation process have long processes and high energy consumption. In order to simplify the gathering and transportation process of high-viscosity crude oil, reduce the energy consumption of the gathering and transportation system, and reduce the failure rate of pipelines, it is urgent to carry out research on the single-tube normal-temperature transportation of high-viscosity crude oil, determine the normal-temperature gathering and transportation limit of high-viscosity crude oil, and optimize the gathering and transportation process of high-viscosity crude oil, so as to reduce the gathering and transportation energy consumption of high-viscosity crude oil and save the gathering and transportation cost of high-viscosity crude oil. Summary of the invention

[0004] In view of this, the present invention provides a method, device, storage medium and electronic equipment for gathering and transporting high-freezing and high-viscosity crude oil.

[0005] Specifically, the present invention is achieved through the following technical solutions:

[0006] According to a first aspect of the present invention, a method for gathering and transporting high-freezing and high-viscosity crude oil is provided, the method comprising:

[0007] Obtaining a basic parameter set of an oil well, and determining main basic parameters of the oil well that affect normal temperature gathering and transportation of oil, gas and water mixed transportation pipelines based on the basic parameter set of the oil well;

[0008] Based on the main basic parameters of the oil well, a wall temperature calculation model of high-freezing and high-viscosity crude oil containing dimensionless constants is established;

[0009] For each oil well with different physical property parameters of the oil well crude oil of the main basic parameters of the oil well, respectively obtain the parameter values ​​of the oil well under the main basic parameters of the oil well in the gathering and transportation, solve the constructed wall temperature calculation model based on the parameter values, and obtain the value of the dimensionless constant corresponding to the oil well in the wall temperature calculation model;

[0010] Based on the sticky wall temperature calculation model for obtaining the value of the dimensionless constant, the sticky wall temperature corresponding to each water content and each liquid production rate is solved, and a normal temperature gathering and transportation temperature limit prediction table of high-freezing and high-viscosity crude oil corresponding to the physical property parameter values ​​of the crude oil of each oil well is constructed according to the obtained sticky wall temperature;

[0011] According to the physical property parameter values ​​of the crude oil of the target oil well, a target normal temperature gathering and transportation temperature limit prediction table corresponding to the physical property parameter values ​​of the crude oil of the target oil well is obtained; according to the water content and liquid production of the target oil well, and according to the target normal temperature gathering and transportation temperature limit prediction table, the gathering and transportation temperature of the high-freezing point and high-viscosity crude oil is determined; based on the determined gathering and transportation temperature, the gathering and transportation process of the high-freezing point and high-viscosity crude oil of the target oil well is obtained.

[0012] The high-freezing point and high-viscosity crude oil gathering and transportation method in the present technical scheme analyzes the basic parameters of the oil wells that affect the gathering and transportation of high-freezing point and high-viscosity crude oil, and establishes a sticky wall temperature calculation model based on the main basic parameters of the oil wells; based on the parameter values ​​of the oil wells under the main basic parameters of the oil wells during gathering and transportation, the constructed sticky wall temperature calculation model is solved to obtain the value of the dimensionless constant in the sticky wall temperature calculation model, so that the sticky wall temperature calculation model based on the value of the dimensionless constant can be used to solve the corresponding sticky wall temperature according to the water content and liquid production of the target oil well, and based on the determined sticky wall temperature, the gathering and transportation process of the high-freezing point and high-viscosity crude oil of the target oil well is obtained, which can realize the single-pipe gathering and transportation of high-freezing point and high-viscosity crude oil, thereby reducing the energy consumption of the gathering and transportation pipeline and saving operating costs.

[0013] According to a second aspect of the present invention, a high-freezing point and high-viscosity crude oil gathering and transportation device is provided, and the high-freezing point and high-viscosity crude oil gathering and transportation device comprises:

[0014] A parameter extraction module is used to obtain a basic parameter set of an oil well, and based on the basic parameter set of an oil well, determine the main basic parameters of the oil well that affect the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline;

[0015] A model building module, used to establish a wall temperature calculation model of high-freezing and high-viscosity crude oil containing dimensionless constants based on the main basic parameters of the oil well;

[0016] A model solving module is used to obtain, for each oil well with different physical property parameters of the oil well crude oil of the main basic parameters of the oil well, the parameter values ​​of the oil well under the main basic parameters of the oil well in the gathering and transportation, and solve the constructed wall temperature calculation model based on the parameter values ​​to obtain the value of the dimensionless constant corresponding to the oil well in the wall temperature calculation model;

[0017] A prediction table construction module is used to solve the corresponding sticky wall temperature under various water content and liquid production conditions based on the sticky wall temperature calculation model for obtaining the value of the dimensionless constant, and to construct a normal temperature gathering and transportation temperature limit prediction table of high-freezing and high-viscosity crude oil corresponding to the physical property parameter values ​​of the crude oil of each oil well according to the obtained sticky wall temperature;

[0018] The gathering and transportation temperature determination module is used to obtain a target normal temperature gathering and transportation temperature limit prediction table corresponding to the physical property parameter values ​​of the crude oil of the target oil well according to the physical property parameter values ​​of the crude oil of the target oil well, determine the gathering and transportation temperature of the high-freezing and high-viscosity crude oil according to the water content and liquid production of the target oil well and the target normal temperature gathering and transportation temperature limit prediction table, and obtain the gathering and transportation process of the high-freezing and high-viscosity crude oil of the target oil well based on the determined gathering and transportation temperature.

[0019] According to a third aspect of the present invention, there is provided a storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for gathering and transporting high-freezing and high-viscosity crude oil in any possible implementation of the first aspect.

[0020] According to a fourth aspect of the present invention, there is provided an electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the method for gathering and transporting high-viscosity crude oil in any possible implementation of the first aspect are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 A schematic flow chart of a method for gathering and transporting high-freezing and high-viscosity crude oil provided in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of a high-freezing-point and high-viscosity crude oil gathering and transportation processing device provided in an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present embodiment provides a method for gathering and transporting high-freezing-point and high-viscosity crude oil based on sticky wall temperature. By acquiring relevant parameters such as physical properties of crude oil from different oil wells and production and operation data, a sticky wall temperature calculation model for high-freezing-point and high-viscosity crude oil is established. By solving and calculating, the sticky wall temperature of high-freezing-point and high-viscosity crude oil under different liquid production rates and different water content conditions is obtained. Based on the determined sticky wall temperature, the normal-temperature gathering and transport temperature limit of the high-freezing-point and high-viscosity crude oil is determined and a temperature limit prediction table is formulated. In combination with on-site production data, the sticky wall temperature of gathering and transport is determined by a table lookup method, and the gathering and transport process parameters are optimized based on the determined sticky wall temperature, thereby simplifying the gathering and transport process flow, realizing single-pipe gathering and transport, and reducing the energy consumption and operating cost of the gathering and transport system.

[0028] See also Figure 1 The embodiment of the present invention provides a method for gathering and transporting high-viscosity crude oil, which may include the following steps:

[0029] S101, obtaining a basic parameter set of an oil well, and determining main basic parameters of the oil well that affect normal temperature gathering and transportation of oil, gas and water mixed transportation pipelines based on the basic parameter set of the oil well;

[0030] In this embodiment, as an optional embodiment, the basic parameter set of oil wells includes but is not limited to: physical property parameters of oil well crude oil and production and operation parameters. Among them, the physical property parameters of oil well crude oil include but are not limited to: density, freezing point, viscosity, production and operation parameters include but are not limited to: gathering and transportation conditions and pipeline materials, and the gathering and transportation conditions include but are not limited to: liquid production, water content, water blending amount, and gathering and transportation temperature.

[0031] In this embodiment, by obtaining the basic parameter set of oil wells such as physical property parameters of crude oil and production operation parameters, the pressure drop and temperature of the oil-gas-water mixed pipeline under different gathering and transportation conditions (liquid production, water content, water blending amount, gathering and transportation temperature), different oil physical properties (density, freezing point, viscosity, rheology), and different pipeline materials (steel pipe, glass fiber reinforced plastic pipe, PE composite pipe) in the basic parameter set of oil wells are studied. As an optional embodiment, the obtained basic parameter set of oil wells is used to carry out single factor influence analysis, study the influence of liquid production, water content, gathering and transportation temperature, water blending amount, pipe material, etc. on the normal temperature transportation of oil-gas-water mixed pipelines, and obtain the main factors affecting the normal temperature transportation of oil-gas-water mixed pipelines.

[0032] In this embodiment, as an optional embodiment, basic parameters of oil wells such as crude oil physical property parameters and production operation parameters of 12 oil wells in a well area are obtained, as shown in Table 1.

[0033] Table 1 Oil well basic parameters

[0034]

[0035] In Table 1, the amount of water added is the difference between the amount of liquid produced and the amount of oil produced.

[0036] In this embodiment, as an optional embodiment, based on the oil well basic parameter set, the main basic parameters of the oil well that affect the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline are determined, including:

[0037] A11, extracting production operation parameters from the oil well basic parameter set to obtain a production operation parameter set;

[0038] A12, determining a production operation parameter from the production operation parameter set, changing the value of the production operation parameter, keeping other production operation parameters in the production operation parameter set unchanged, and determining the impact value of the production operation parameter on the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline;

[0039] A13, according to the influence value corresponding to each production operation parameter in the production operation parameter set, determine the main production operation parameters affecting the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline, and obtain the main basic parameters of the oil well.

[0040] In this embodiment, a single factor impact analysis is conducted on the basic parameter set of oil wells for oil well gathering and transportation, and the influence of each basic parameter of oil wells, such as liquid production, water content, gathering and transportation temperature, water content, and pipeline material, on the normal temperature gathering and transportation of oil, gas and water mixed pipelines is studied respectively. The study shows that increasing liquid production, increasing gathering and transportation temperature, and reducing wall adhesion temperature are all conducive to achieving normal temperature gathering and transportation, and can optimize the flow state; the higher the water content and the higher the water content, the better the flow characteristics of crude oil; the pressure loss of FRP pipelines is smaller than that of the other two pipe materials (steel pipes and PE composite pipes), so it is easier to achieve normal temperature gathering and transportation.

[0041] In this embodiment, as an optional embodiment, determining the impact value of the production operation parameter on the normal temperature transportation of the oil, gas and water mixed transportation pipeline includes:

[0042] The pressure drop and temperature difference of the oil, gas and water mixed transmission pipeline during gathering and transportation under the changed production operation parameters are obtained.

[0043] In this embodiment, the influencing value includes but is not limited to: pressure difference and / or temperature difference.

[0044] In this embodiment, as an optional embodiment, according to the influence value corresponding to each production operation parameter in the production operation parameter set, the main production operation parameters affecting the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline are determined, including:

[0045] For each production operation parameter, the quotient of the pressure drop corresponding to the production operation parameter and the preset pressure drop threshold is calculated to obtain the pressure drop influence factor, and the quotient of the temperature difference corresponding to the production operation parameter and the preset temperature threshold is calculated to obtain the temperature difference influence factor;

[0046] Based on the preset pressure drop influence coefficient, temperature difference influence coefficient, pressure drop influence factor and temperature difference influence factor corresponding to the production operation parameter, the comprehensive influence value of the production operation parameter is obtained. If the comprehensive influence value is greater than the preset influence threshold, the production operation parameter is determined to be the main production operation parameter.

[0047] In this embodiment, by studying the pressure drop and temperature difference of the oil, gas and water mixed pipeline under different gathering and transportation conditions (liquid production, water content, water blending amount, gathering and transportation temperature), different oil properties (density, freezing point, viscosity), and different pipeline materials (steel pipe, fiberglass pipe, PE composite pipe), the pressure drop and temperature difference data of the oil, gas and water mixed pipeline corresponding to each production and operation parameter can be obtained, and then based on the pressure drop and temperature difference corresponding to each production and operation parameter, the main influencing factors (main production and operation parameters) are determined.

[0048] In this embodiment, the pressure drop influence coefficient and the temperature difference influence coefficient can be determined according to the influence degree of the pressure drop and the temperature difference on the wall adhesion temperature, respectively. As an optional embodiment, the pressure drop influence coefficient and the temperature difference influence coefficient are normalized coefficients.

[0049] S102, based on the main basic parameters of the oil well, establishing a wall temperature calculation model for high-freezing and high-viscosity crude oil containing dimensionless constants;

[0050] In this embodiment, according to the main influencing factors affecting the wall sticking temperature of high-freezing and high-viscosity crude oil, a wall sticking temperature calculation model is established. The wall sticking temperature refers to the temperature at which the condensed oil adheres to the pipe wall, which is generally lower than the freezing point of the crude oil. Among them, the main influencing factors include but are not limited to: oil physical properties (freezing point, density), rheological properties (consistency coefficient, rheological index), water content, liquid production, pipe diameter, etc.

[0051] In this embodiment, as an optional embodiment, the wall temperature calculation model of high-freezing and high-viscosity crude oil related to the main influencing factors is constructed as follows:

[0052]

[0053] Where, T 粘 is the wall temperature of high-freezing and high-viscosity crude oil (referred to as crude oil), T 凝is the pour point of high-viscosity crude oil, ρ is the oil-water density, d is the pipe diameter parameter, Q is the liquid production, w is the water content, k is the consistency coefficient, n is the rheological index, and a, b, and c are dimensionless constants respectively.

[0054] The oil-water density is the density of the oil-water two-phase mixture, which is calculated using the following formula:

[0055] ρ=ρ w w+ρ o (1-w)

[0056] In the formula, ρ w is the oil density, ρ o is the water density.

[0057] In this embodiment, the parameters in the wall temperature calculation model of high-freezing and high-viscosity crude oil are shown in Table 2.

[0058] Table 2

[0059] Serial number symbol illustrate 1 <![CDATA[T 粘 ]]> Crude oil wall temperature, ℃ 2 <![CDATA[T 凝 ]]> Crude oil pour point, ℃ 3 w Volume water content of crude oil, % 4 a, b, c Dimensionless constant 5 k <![CDATA[Consistency coefficient, Pa·s n > 6 n Rheological index 7 Q Liquid output, t / d 8 d Pipe inner diameter, m 9 ρ <![CDATA[Oil-water density, kg / m 3 > 10 <![CDATA[ρ w ]]> <![CDATA[Water density, kg / m 3 > 11 <![CDATA[ρ o ]]> <![CDATA[Oil density, kg / m 3 >

[0060] In this embodiment, if the dimensionless constant in the wall sticking temperature calculation model can be obtained, the wall sticking temperature of the high-freezing and high-viscosity crude oil can be predicted based on the main influencing factors.

[0061] S103, for each oil well having different physical property parameters of the oil well crude oil of the main basic parameters of the oil well, respectively obtain the parameter values ​​of the oil well under the main basic parameters of the oil well in the gathering and transportation, solve the constructed wall temperature calculation model based on the parameter values, and obtain the value of the dimensionless constant corresponding to the oil well in the wall temperature calculation model;

[0062] In this embodiment, as an optional embodiment, the difference in physical property parameters of crude oil in the oil wells refers to that the difference in crude oil density, and / or crude oil freezing point, and / or crude oil viscosity exceeds a preset difference threshold. For example, taking the crude oil freezing point as an example, if the difference in the freezing point of crude oils of two oil wells exceeds 5 degrees, it is considered that the physical property parameters of the crude oils of the two crude oils of the two oil wells are different, and it is necessary to determine the value of the dimensionless constant corresponding to one crude oil and the value of the dimensionless constant corresponding to the other crude oil based on the wall temperature calculation model.

[0063] In this embodiment, the dimensionless constants in the wall temperature calculation model preliminarily constructed are still unknowns, and the dimensionless constants as unknowns need to be solved before the wall temperature calculation model can be used to predict the wall temperature. As an optional embodiment, when solving the dimensionless constants as unknowns in the wall temperature calculation model of high-freezing and high-viscosity crude oil, a multivariate nonlinear regression method is used. Specifically, according to the physical parameters such as crude oil solidification point and crude oil density, the crude oil viscosity coefficient obtained by experimental detection, the wall temperature and other production parameter data (water content, liquid production, pipe diameter), regression fitting is used to obtain the dimensionless constants a, b, and c in the wall temperature calculation model, and then the wall temperature of high-freezing and high-viscosity crude oil under different liquid production and different water content conditions can be calculated using the wall temperature calculation model based on the values ​​of the dimensionless constants obtained by regression fitting.

[0064] In this embodiment, crude oil density and crude oil pour point are related to the properties of oil in the oil, gas and water mixed pipeline, and can be measured by chemical tests. Rheological properties (consistency coefficient, rheological index) mainly affect the fluidity of crude oil and can be measured by chemical tests; liquid production, water content, and pipe diameter are production and operation parameters of oil wells, which can be obtained by measurement; crude oil wall temperature can be measured by experiments. Therefore, based on these known parameter values, the wall temperature calculation model of high-condensation and high-viscosity crude oil is fitted by a multivariate nonlinear regression method, and the dimensionless constants a, b, and c of the wall temperature calculation model of high-condensation and high-viscosity crude oil can be obtained.

[0065] In this embodiment, as an optional embodiment, the parameter values ​​of the oil well under the main basic parameters of the oil well are obtained, and based on the parameter values, the constructed wall temperature calculation model is solved to obtain the value of the dimensionless constant in the wall temperature calculation model, including:

[0066] A11, measuring parameter values ​​corresponding to main basic parameters of each oil well under the condition that the water injection amount of the oil well is turned off;

[0067] A12, setting a plurality of water mixing amount collection and transportation modes for the oil well, and measuring parameter values ​​corresponding to the main basic parameters of each oil well under each water mixing amount collection and transportation mode;

[0068] A13, inputting the parameter values ​​corresponding to the oil well under the conditions of turning off the water injection amount and setting multiple water injection amounts into the wall temperature calculation model, and obtaining the value of the dimensionless constant in the wall temperature calculation model according to the regression fitting algorithm.

[0069] In this embodiment, taking the flow of the source single well 1 in Table 1 in the steel pipe as an example, the physical properties of the crude oil in the oil well include: crude oil density 936kg / m 3 、Water density 1000kg / m 3, crude oil solidification point 38℃, rheological index n is 0.8, and viscosity coefficient k is 0.9; the inner diameter of the pipeline is 64mm and the length is 400m; the oil well operation data under different water addition conditions are shown in Table 3, mainly including liquid production, water content, wall sticking temperature, etc. The physical properties of oil wells such as solidification point and wall sticking temperature under different water addition conditions of oil well 1 and production operation data are substituted into the wall sticking temperature calculation model of high solidification and high viscosity crude oil, and the dimensionless constants a=1.92, b=5.22, and c=0.21 are fitted. Therefore, the wall sticking temperature calculation model corresponding to the source single well 1 is as follows:

[0070]

[0071] In this embodiment, the physical properties of crude oil in the oil wells in the same well area are similar, and the same wall temperature calculation model can be used for prediction. The predicted wall temperature and the experimentally measured wall temperature have an error within the range of ±1°C. The calculation simulation results are well consistent with the actual results, as shown in Table 3. Therefore, using the same wall temperature calculation model for prediction is feasible for oil wells in the same well area and can guide actual production.

[0072] Table 3 Measured wall sticking temperature and predicted wall sticking temperature under different water content conditions

[0073]

[0074] S104, based on the sticky wall temperature calculation model for obtaining the value of the dimensionless constant, solving the sticky wall temperature corresponding to each water content and each liquid production rate, and constructing a normal temperature gathering and transportation temperature limit prediction table of high-freezing and high-viscosity crude oil corresponding to the physical property parameter values ​​of the crude oil of each oil well according to the obtained sticky wall temperature;

[0075] In this embodiment, for each oil well with different physical properties of crude oil, according to the different water content and different liquid production conditions of the oil well, the sticky wall temperature under different water content conditions and different liquid production conditions is calculated based on the sticky wall temperature calculation model after obtaining the dimensionless constant value, and then based on the sticky wall temperature under different conditions, a normal temperature gathering temperature limit prediction table of the high-viscosity and high-cold crude oil of the oil well is generated as a basis for subsequent determination of the gathering temperature (sticky wall temperature) of the high-viscosity and high-cold crude oil.

[0076] In this embodiment, as an optional embodiment, the wall temperature calculation model is solved to obtain the wall temperatures of the 12 oil wells in the well area at different water contents and different liquid production rates. A normal temperature gathering and transportation temperature limit prediction table for high-freezing and high-viscosity crude oil is formulated according to different liquid production ranges under different water contents, as shown in Table 4. Therefore, the gathering and transportation temperature limit below the freezing point of the crude oil can be used as a basis for determining the gathering and transportation temperature of the high-freezing and high-viscosity crude oil.

[0077] Table 4 Prediction table of normal temperature gathering and transportation temperature limit of high-freezing and high-viscosity crude oil

[0078]

[0079]

[0080] In this embodiment, as an optional embodiment, the obtained normal temperature gathering and transportation temperature limit prediction table is marked with the oil well crude oil physical property parameters. Different normal temperature gathering and transportation temperature limit prediction tables can be obtained for different oil well crude oil physical property parameters, thereby constructing a mapping relationship between the oil well crude oil physical property parameters and the normal temperature gathering and transportation temperature limit prediction table.

[0081] S105. According to the physical property parameter values ​​of the crude oil of the target oil well, obtain the target normal temperature gathering and transportation temperature limit prediction table corresponding to the physical property parameter values ​​of the crude oil of the target oil well; according to the water content and liquid production of the target oil well, determine the gathering and transportation temperature of the high-freezing and high-viscosity crude oil according to the target normal temperature gathering and transportation temperature limit prediction table; based on the determined gathering and transportation temperature, obtain the gathering and transportation process of the high-freezing and high-viscosity crude oil of the target oil well.

[0082] In this embodiment, based on the physical property parameter values ​​of the high-viscosity and high-cement crude oil of the target oil well, the target normal temperature gathering and transportation temperature limit prediction table corresponding to the physical property parameter values ​​of the high-viscosity and high-cement crude oil of each oil well is obtained from the normal temperature gathering and transportation temperature limit prediction table of the high-viscosity and high-cement crude oil corresponding to the physical property parameter values ​​of the crude oil of each oil well, and according to the specific production operation parameters, the target normal temperature gathering and transportation temperature limit prediction table is queried, the gathering and transportation operation parameters (sticky wall temperature) of the target oil well are determined as the gathering and transportation temperature, and the gathering and transportation process of the high-viscosity and high-cement crude oil is optimized based on the determined gathering and transportation operation parameters, so as to provide guidance for realizing the single-pipeline gathering and transportation production of crude oil.

[0083] In this embodiment, the temperature limits obtained based on the normal temperature gathering and transportation temperature limit prediction table are all lower than the freezing point. Therefore, the single-tube normal temperature gathering and transportation process can be used as the gathering and transportation process for the high-freezing and high-viscosity crude oil of the target oil well, and other parameters of the gathering and transportation process can be set based on the obtained sticky wall temperature.

[0084] In this embodiment, as an optional embodiment, according to the actual operation of the 12 oil well groups in the well area, the calculated water injection gathering and transportation terminal temperature is greater than the wall adhesion temperature. Therefore, the 12 oil wells can be transported at normal temperature according to the gathering and transportation temperature limit, and the single-pipe gathering and transportation with water injection stopped can be realized. At the same time, by shutting off the water injection test for the 12 oil well groups, the wellhead pressures all reached equilibrium after a period of time, fluctuating slightly around the equilibrium value, and the operation was stable after shutting off the water injection. Through actual verification, it is shown that single-pipe normal temperature gathering and transportation can be realized.

[0085] In this embodiment, based on the wall adhesion temperature of high-freezing and high-viscosity crude oil of different oil wells (oil well crude oil physical property parameter values), the normal temperature gathering and transportation temperature limit prediction table is formulated to optimize the crude oil gathering and transportation process to guide the actual production of the oil well.

[0086] In this embodiment, the basic parameters of the oil wells that affect the gathering and transportation of high-viscosity and high-freezing crude oil are analyzed, and a sticky wall temperature calculation model is established based on the main basic parameters of the oil wells; the constructed sticky wall temperature calculation model is solved based on the parameter values ​​of the oil wells under the main basic parameters of the oil wells during gathering and transportation to obtain the value of the dimensionless constant in the sticky wall temperature calculation model, so that the sticky wall temperature calculation model based on the value of the dimensionless constant can be used to solve the corresponding sticky wall temperature according to the water content and liquid production of the target oil well, and the gathering and transportation process of the high-viscosity and high-freezing crude oil of the target oil well can be obtained based on the determined sticky wall temperature, so that the single-pipe gathering and transportation of high-viscosity and high-freezing crude oil can be realized, thereby reducing the energy consumption of the gathering and transportation pipeline and saving operating costs. Specifically,

[0087] (1) Establishment of a wall temperature calculation model for high-freezing and high-viscosity crude oil

[0088] In this embodiment, in the process of gathering and transporting high-freezing and high-viscosity crude oil, the main factors that restrict the transportation of high-freezing and high-viscosity crude oil are factors such as crude oil rheological properties. According to the main influencing factors affecting the sticky wall temperature of high-freezing and high-viscosity crude oil, a sticky wall temperature calculation model of high-freezing and high-viscosity crude oil is established. In this way, by introducing the viscosity coefficient and rheological index into the sticky wall temperature calculation model, the crude oil transportation characteristics can be specifically reflected, so that the sticky wall temperature calculated according to the sticky wall temperature calculation model is closer to the actual situation.

[0089] (2) Develop a table to predict the temperature limits of normal temperature gathering and transportation of high-viscosity crude oil at different oil well crude oil physical property parameter values

[0090] In this embodiment, based on the sticky wall temperature of the high-viscosity crude oil calculated by the sticky wall temperature calculation model, a reasonable normal-temperature gathering and transportation temperature limit of the high-viscosity crude oil is determined, and a prediction table of the normal-temperature gathering and transportation temperature limit of the high-viscosity crude oil under different conditions is formulated. The prediction table is convenient and practical to query, and provides a basis for guiding actual production.

[0091] (3) Optimizing the gathering and transportation process of high-viscosity crude oil

[0092] In this embodiment, according to the normal temperature gathering and transportation temperature limit prediction table of high-freezing and high-viscosity crude oil, the gathering and transportation operation parameters of the high-freezing and high-viscosity crude oil are determined, and the gathering and transportation process of the high-freezing and high-viscosity crude oil is optimized according to the determined gathering and transportation operation parameters, so as to realize the single-pipe gathering and transportation of high-freezing and high-viscosity crude oil, reduce the energy consumption of the gathering and transportation pipeline, and at the same time optimize and reduce the water-mixed pipeline, reduce the pipeline failure rate, save operating costs, and save energy and reduce consumption for green protection.

[0093] Based on the same inventive concept, Figure 2 As shown, the embodiment of the present invention also provides a high-freezing and high-viscosity crude oil gathering and transportation device, the device comprising:

[0094] The parameter extraction module 201 is used to obtain a basic parameter set of an oil well, and based on the basic parameter set of an oil well, determine the main basic parameters of the oil well that affect the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline;

[0095] In this embodiment, as an optional embodiment, the basic parameter set of the oil well includes: physical properties parameters of the oil well crude oil and production and operation parameters, wherein the physical properties parameters of the oil well crude oil include: density, freezing point, viscosity, and the production and operation parameters include: gathering and transportation conditions and pipeline materials, and the gathering and transportation conditions include: liquid production, water content, water blending amount, and gathering and transportation temperature.

[0096] In this embodiment, as an optional embodiment, the parameter extraction module 201 includes:

[0097] A parameter acquisition unit, used for acquiring a basic parameter set of an oil well;

[0098] A parameter extraction unit, used to extract production operation parameters from the oil well basic parameter set to obtain a production operation parameter set;

[0099] An impact value determination unit, used to determine a production operation parameter from the production operation parameter set, change the value of the production operation parameter, keep other production operation parameters in the production operation parameter set unchanged, and determine the impact value of the production operation parameter on the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline;

[0100] In this embodiment, as an optional embodiment, determining the impact value of the production operation parameter on the normal temperature transportation of the oil, gas and water mixed transportation pipeline includes:

[0101] The pressure drop and temperature difference of the oil, gas and water mixed transmission pipeline during gathering and transportation under the changed production operation parameters are obtained.

[0102] The parameter screening unit is used to determine the main production and operation parameters affecting the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline according to the influence value corresponding to each production and operation parameter in the production and operation parameter set, and obtain the main basic parameters of the oil well.

[0103] In this embodiment, as an optional embodiment, the parameter screening unit is specifically used to:

[0104] For each production operation parameter, the quotient of the pressure drop corresponding to the production operation parameter and the preset pressure drop threshold is calculated to obtain the pressure drop influence factor, and the quotient of the temperature difference corresponding to the production operation parameter and the preset temperature threshold is calculated to obtain the temperature difference influence factor;

[0105] Based on the preset pressure drop influence coefficient, temperature difference influence coefficient, pressure drop influence factor and temperature difference influence factor corresponding to the production operation parameter, the comprehensive influence value of the production operation parameter is obtained. If the comprehensive influence value is greater than the preset influence threshold, the production operation parameter is determined to be the main production operation parameter.

[0106] A model building module 202 is used to establish a wall temperature calculation model of high-freezing and high-viscosity crude oil containing dimensionless constants based on the main basic parameters of the oil well;

[0107] In this embodiment, as an optional embodiment, the wall sticking temperature calculation model constructed is as follows:

[0108]

[0109] Where, T 粘 is the wall temperature of high-freezing and high-viscosity crude oil, T 凝 is the pour point of high-viscosity crude oil, ρ is the oil-water density, d is the pipe diameter parameter, Q is the liquid production, w is the water content, k is the consistency coefficient, n is the rheological index, and a, b, and c are dimensionless constants respectively.

[0110] The model solving module 203 is used to obtain the parameter values ​​of each oil well under the main basic parameters of the oil well in the gathering and transportation process for each oil well with different physical properties of the oil well crude oil in the main basic parameters of the oil well, and solve the constructed wall temperature calculation model based on the parameter values ​​to obtain the value of the dimensionless constant corresponding to the oil well in the wall temperature calculation model;

[0111] In this embodiment, as an optional embodiment, the difference in physical property parameters of crude oil in the oil wells means that the difference in crude oil density, and / or crude oil freezing point, and / or crude oil viscosity exceeds a preset difference threshold.

[0112] In this embodiment, as an optional embodiment, the model solving module 203 includes:

[0113] A physical property parameter distinguishing unit, used for each oil well with different physical property parameters of crude oil in the main basic parameters of the oil well;

[0114] A first parameter value acquisition unit is used to measure parameter values ​​corresponding to main basic parameters of each oil well under the condition that the water injection amount of the oil well is turned off;

[0115] A second parameter value acquisition unit is used to set a plurality of water blending amount collection and transportation modes for the oil well, and measure parameter values ​​corresponding to the main basic parameters of each oil well under each water blending amount collection and transportation mode;

[0116] The regression fitting unit is used to input the parameter values ​​corresponding to the oil well under the conditions of turning off the water injection amount and setting multiple water injection amounts into the wall temperature calculation model, and obtain the value of the dimensionless constant in the wall temperature calculation model according to the regression fitting algorithm.

[0117] The prediction table construction module 204 is used to solve the corresponding sticky wall temperature under various water content and liquid production conditions based on the sticky wall temperature calculation model for obtaining the value of the dimensionless constant, and to construct a normal temperature gathering and transportation temperature limit prediction table of high-freezing and high-viscosity crude oil corresponding to the physical property parameter values ​​of the crude oil of each oil well according to the obtained sticky wall temperature;

[0118] In this embodiment, for each oil well with different physical properties of crude oil, according to the different water content and different liquid production conditions of the oil well, the sticky wall temperature under different water content conditions and different liquid production conditions is calculated based on the sticky wall temperature calculation model after obtaining the dimensionless constant value, and then based on the sticky wall temperature under different conditions, a normal temperature gathering temperature limit prediction table of the high-viscosity and high-cold crude oil of the oil well is generated as a basis for subsequent determination of the gathering temperature (sticky wall temperature) of the high-viscosity and high-cold crude oil.

[0119] In this embodiment, as an optional embodiment, the obtained normal temperature gathering and transportation temperature limit prediction table is marked with the oil well crude oil physical property parameters. Different normal temperature gathering and transportation temperature limit prediction tables can be obtained for different oil well crude oil physical property parameters, thereby constructing a mapping relationship between the oil well crude oil physical property parameters and the normal temperature gathering and transportation temperature limit prediction table.

[0120] The gathering and transportation temperature determination module 205 is used to obtain a target normal temperature gathering and transportation temperature limit prediction table corresponding to the physical property parameter values ​​of the crude oil of the target oil well according to the physical property parameter values ​​of the crude oil of the target oil well, determine the gathering and transportation temperature of the high-viscosity crude oil according to the water content and liquid production of the target oil well and according to the target normal temperature gathering and transportation temperature limit prediction table, and obtain the gathering and transportation process of the high-viscosity crude oil of the target oil well based on the determined gathering and transportation temperature.

[0121] In this embodiment, based on the physical property parameter values ​​of the crude oil of the target oil well with high freezing point and high viscosity, the target normal temperature gathering and transportation temperature limit prediction table corresponding to the physical property parameter values ​​of the crude oil of the target oil well is obtained from the normal temperature gathering and transportation temperature limit prediction table of the high freezing point and high viscosity crude oil corresponding to the physical property parameter values ​​of the crude oil of each oil well, and according to the specific production operation parameters, the target normal temperature gathering and transportation temperature limit prediction table is queried, the gathering and transportation operation parameters (sticky wall temperature) of the target oil well are determined as the gathering and transportation temperature, and the gathering and transportation process of the high freezing point and high viscosity crude oil is optimized based on the determined gathering and transportation operation parameters. Since the temperature limits obtained based on the normal temperature gathering and transportation temperature limit prediction table are all lower than the freezing point, the single-tube normal temperature gathering and transportation process can be used as the gathering and transportation process of the high freezing point and high viscosity crude oil of the target oil well, thereby providing guidance for realizing the single-tube gathering and transportation production of crude oil.

[0122] Based on the same inventive concept, an embodiment of the present invention further provides a storage medium on which a computer program is stored. When the program is executed by a processor, the steps of the high-freezing point and high-viscosity crude oil gathering and transportation method in any possible implementation manner described above are implemented.

[0123] Alternatively, the storage medium may be a non-transitory computer-readable storage medium, for example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

[0124] Based on the same inventive concept, see Figure 3 The embodiment of the present invention further provides an electronic device, including a memory 101 (such as a non-volatile memory), a processor 102, and a computer program stored in the memory 101 and executable on the processor 102. When the processor 102 executes the program, the steps of the high-freezing and high-viscosity crude oil gathering and transportation method in any possible implementation manner described above are implemented, which may be equivalent to the high-freezing and high-viscosity crude oil gathering and transportation device as described above. Of course, the processor may also be used to process other data or operations. The electronic device may be a PC, a server, a terminal, or other equipment.

[0125] like Figure 3 As shown, the electronic device may also generally include: a memory 103, a network interface 104, and an internal bus 105. In addition to these components, other hardware may also be included, which will not be described in detail.

[0126] It should be pointed out that the above-mentioned high-viscosity and high-freezing crude oil gathering and transportation device can be implemented by software. As a device in a logical sense, it is formed by the processor 102 of the electronic device in which it is located reading the computer program instructions stored in the non-volatile memory into the memory 103 for execution.

[0127] The embodiments of the subject matter and functional operations described in this specification may be implemented in the following: digital electronic circuits, tangibly embodied computer software or firmware, computer hardware including the structures disclosed in this specification and their structural equivalents, or a combination of one or more of them. The embodiments of the subject matter described in this specification may be implemented as one or more computer programs, i.e., one or more modules in computer program instructions encoded on a tangible non-temporary program carrier to be executed by a data processing device or to control the operation of the data processing device. Alternatively or additionally, the program instructions may be encoded on an artificially generated propagation signal, such as a machine-generated electrical, optical or electromagnetic signal, which is generated to encode information and transmit it to a suitable receiver device for execution by a data processing device. The computer storage medium may be a machine-readable storage device, a machine-readable storage substrate, a random or serial access memory device, or a combination of one or more of them.

[0128] The processes and logic flows described in this specification can be performed by one or more programmable computers executing one or more computer programs to perform the corresponding functions by operating on input data and generating output. The processes and logic flows can also be performed by special purpose logic circuits, such as FPGAs (field programmable gate arrays) or ASICs (application specific integrated circuits), and the apparatus can also be implemented as special purpose logic circuits.

[0129] Computers suitable for executing computer programs include, for example, general and / or special microprocessors, or any other type of central processing unit. Typically, the central processing unit will receive instructions and data from a read-only memory and / or a random access memory. The basic components of a computer include a central processing unit for implementing or executing instructions and one or more memory devices for storing instructions and data. Typically, the computer will also include one or more large-capacity storage devices for storing data, such as magnetic disks, magneto-optical disks, or optical disks, or the computer will be operably coupled to this large-capacity storage device to receive data from it or to transmit data to it, or both. However, the computer does not necessarily have such a device. In addition, the computer can be embedded in another device, such as a mobile phone, a personal digital assistant (PDA), a mobile audio or video player, a game console, a global positioning system (GPS) receiver, or a portable storage device such as a universal serial bus (USB) flash drive, to name a few.

[0130] Computer readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including, for example, semiconductor memory devices (e.g., EPROM, EEPROM and flash memory devices), magnetic disks (e.g., internal hard disks or removable disks), magneto-optical disks, and CD-ROM and DVD-ROM disks. The processor and memory may be supplemented by, or incorporated in, special purpose logic circuitry.

[0131] Although this specification includes many specific implementation details, these should not be interpreted as limiting the scope of any invention or the scope of protection claimed, but are mainly used to describe the features of the specific embodiments of specific inventions. Certain features described in multiple embodiments in this specification may also be implemented in combination in a single embodiment. On the other hand, the various features described in a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination. In addition, although the features may work as above in certain combinations and even initially claim protection, one or more features from the claimed combination may be removed from the combination in some cases, and the claimed combination may point to a sub-combination or a variation of a sub-combination.

[0132] Similarly, although operations are depicted in a particular order in the accompanying drawings, this should not be understood as requiring that these operations be performed in the particular order shown or performed sequentially, or requiring that all illustrated operations be performed to achieve the desired results. In some cases, multitasking and parallel processing may be advantageous. In addition, the separation of various system modules and components in the above-described embodiments should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product, or packaged into multiple software products.

[0133] Thus, specific embodiments of the subject matter have been described. Other embodiments are within the scope of the appended claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the particular order or sequential order shown to achieve the desired results. In some implementations, multitasking and parallel processing may be advantageous.

[0134] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0135] The above is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A method for gathering and transporting high-viscosity crude oil, characterized in that: include: Obtaining a basic parameter set of an oil well, and determining main basic parameters of the oil well that affect normal temperature gathering and transportation of oil, gas and water mixed transportation pipelines based on the basic parameter set of the oil well; Based on the main basic parameters of the oil well, a wall temperature calculation model of high-freezing and high-viscosity crude oil containing dimensionless constants is established; For each oil well with different physical property parameters of the oil well crude oil of the main basic parameters of the oil well, respectively obtain the parameter values ​​of the oil well under the main basic parameters of the oil well in the gathering and transportation, solve the constructed wall temperature calculation model based on the parameter values, and obtain the value of the dimensionless constant corresponding to the oil well in the wall temperature calculation model; Based on the sticky wall temperature calculation model for obtaining the value of the dimensionless constant, the sticky wall temperature corresponding to each water content and each liquid production rate is solved, and a normal temperature gathering and transportation temperature limit prediction table of high-freezing and high-viscosity crude oil corresponding to the physical property parameter values ​​of the crude oil of each oil well is constructed according to the obtained sticky wall temperature; According to the physical property parameter values ​​of the crude oil of the target oil well, a target normal temperature gathering and transportation temperature limit prediction table corresponding to the physical property parameter values ​​of the crude oil of the target oil well is obtained; according to the water content and liquid production of the target oil well, and according to the target normal temperature gathering and transportation temperature limit prediction table, the gathering and transportation temperature of the high-freezing point and high-viscosity crude oil is determined; based on the determined gathering and transportation temperature, the gathering and transportation process of the high-freezing point and high-viscosity crude oil of the target oil well is obtained.

2. The method for gathering and transporting high-viscosity crude oil according to claim 1, characterized in that: The main basic parameters of the oil wells that affect the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline are determined based on the basic parameter set of the oil wells, including: Extracting production operation parameters from the oil well basic parameter set to obtain a production operation parameter set; Determine a production operation parameter from the production operation parameter set, change the value of the production operation parameter, keep other production operation parameters in the production operation parameter set unchanged, and determine the impact value of the production operation parameter on the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline; According to the influence value corresponding to each production operation parameter in the production operation parameter set, the main production operation parameters affecting the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline are determined, and the main basic parameters of the oil well are obtained.

3. The method for gathering and transporting high-viscosity crude oil according to claim 2, characterized in that: Determining the impact value of the production operation parameter on the normal temperature transportation of the oil, gas and water mixed transportation pipeline includes: The pressure drop and temperature difference of the oil, gas and water mixed transmission pipeline during gathering and transportation under the changed production operation parameters are obtained.

4. The method for gathering and transporting high-viscosity crude oil according to claim 3, characterized in that: Determining the main production and operation parameters affecting the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline according to the influence value corresponding to each production and operation parameter in the production and operation parameter set includes: For each production operation parameter, the quotient of the pressure drop corresponding to the production operation parameter and the preset pressure drop threshold is calculated to obtain the pressure drop influence factor, and the quotient of the temperature difference corresponding to the production operation parameter and the preset temperature threshold is calculated to obtain the temperature difference influence factor; Based on the preset pressure drop influence coefficient, temperature difference influence coefficient, pressure drop influence factor and temperature difference influence factor corresponding to the production operation parameter, the comprehensive influence value of the production operation parameter is obtained. If the comprehensive influence value is greater than the preset influence threshold, the production operation parameter is determined to be the main production operation parameter.

5. The method for gathering and transporting high-viscosity crude oil according to any one of claims 1 to 4, characterized in that: The constructed wall temperature calculation model is as follows: Where, T 粘 is the wall temperature of high-freezing and high-viscosity crude oil, T 凝 is the pour point of high-viscosity crude oil, ρ is the oil-water density, d is the pipe diameter parameter, Q is the liquid production, w is the water content, k is the consistency coefficient, n is the rheological index, and a, b, and c are dimensionless constants respectively.

6. The method for gathering and transporting high-viscosity crude oil according to any one of claims 1 to 4, characterized in that: The step of solving the constructed wall temperature calculation model based on the parameter value to obtain the value of the dimensionless constant corresponding to the oil well in the wall temperature calculation model includes: Under the condition that the water injection amount of the oil well is turned off, the parameter values ​​corresponding to the main basic parameters of each oil well are measured; Setting a plurality of water mixing amount gathering and transportation modes for the oil well, and measuring parameter values ​​corresponding to the main basic parameters of each oil well under each water mixing amount gathering and transportation mode; The parameter values ​​corresponding to the oil well under the conditions of turning off the water injection amount and setting a plurality of water injection amounts are input into the wall temperature calculation model, and the value of the dimensionless constant in the wall temperature calculation model is obtained according to the regression fitting algorithm.

7. The method for gathering and transporting high-viscosity crude oil according to any one of claims 1 to 4, characterized in that: The basic parameter set of the oil well includes: physical property parameters of the oil well crude oil and production and operation parameters, wherein the physical property parameters of the oil well crude oil include: density, freezing point, viscosity, and the production and operation parameters include: gathering and transportation conditions and pipeline materials, and the gathering and transportation conditions include: liquid production, water content, water blending amount, and gathering and transportation temperature.

8. A high-freezing and high-viscosity crude oil gathering and transportation device, characterized in that: The high-freezing-point and high-viscosity crude oil gathering and transportation device comprises: A parameter extraction module is used to obtain a basic parameter set of an oil well, and based on the basic parameter set of an oil well, determine the main basic parameters of the oil well that affect the normal temperature gathering and transportation of the oil, gas and water mixed transportation pipeline; A model building module, used to establish a wall temperature calculation model of high-freezing and high-viscosity crude oil containing dimensionless constants based on the main basic parameters of the oil well; A model solving module is used to obtain, for each oil well with different physical property parameters of the oil well crude oil of the main basic parameters of the oil well, the parameter values ​​of the oil well under the main basic parameters of the oil well in the gathering and transportation, and solve the constructed wall temperature calculation model based on the parameter values ​​to obtain the value of the dimensionless constant corresponding to the oil well in the wall temperature calculation model; A prediction table construction module is used to solve the corresponding sticky wall temperature under various water content and liquid production conditions based on the sticky wall temperature calculation model for obtaining the value of the dimensionless constant, and to construct a normal temperature gathering and transportation temperature limit prediction table of high-freezing and high-viscosity crude oil corresponding to the physical property parameter values ​​of the crude oil of each oil well according to the obtained sticky wall temperature; The gathering and transportation temperature determination module is used to obtain a target normal temperature gathering and transportation temperature limit prediction table corresponding to the physical property parameter values ​​of the crude oil of the target oil well according to the physical property parameter values ​​of the crude oil of the target oil well, determine the gathering and transportation temperature of the high-freezing and high-viscosity crude oil according to the water content and liquid production of the target oil well and according to the target normal temperature gathering and transportation temperature limit prediction table, and obtain the gathering and transportation process of the high-freezing and high-viscosity crude oil of the target oil well based on the determined gathering and transportation temperature.

9. A storage medium, characterized in that: The storage medium stores programs or instructions, and when the programs or instructions are executed by the processor, the steps of the high-freezing-point and high-viscosity crude oil gathering and transportation method as described in any one of claims 1 to 7 are implemented.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the high-freezing-point and high-viscosity crude oil gathering and transportation method described in any one of claims 1 to 7 are implemented.

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