Method and device for evaluating strike-slip breaking control oil and gas reservoir formation main control factors

Abstract

The invention discloses a strike-slip fault control oil and gas reservoir formation main control factor evaluation method and device, and relates to the technical field of petroleum geology analysis, and the method comprises the steps: carrying out strike-slip fracture and horizon analysis on a target region, and determining a strike-slip fracture zone activity interface and layering characteristics of the target region; acquiring attribute information corresponding to a strike-slip fault zone activity interface of the target area, and acquiring oil and gas accumulation characteristic data based on the position information of the target well position; determining to-be-analyzed reservoir forming factors of the target area based on the oil and gas reservoir forming characteristic data; based on the unit pressure drop productivity of the target well position, the oil gas enrichment degree of the target area is determined; and establishing linear regression analysis between the reservoir forming factor to be analyzed and the oil gas enrichment degree to obtain an oil gas reservoir forming evaluation result of the target area. The method can be widely applied to quantitative evaluation of the ultra-deep strike-slip breaking control oil and gas accumulation main control factors in the Kraton basin and the like, and the research blank of the quantitative evaluation of the ultra-deep strike-slip breaking control oil and gas accumulation main control factors is filled.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum geological analysis, and in particular to an evaluation method and device for main controlling factors of strike-slip fault-controlled oil and gas reservoir formation. Background Art

[0002] The broken (dissolution) zone formed by the multi-stage activity of strike-slip faults is the main space for oil and gas storage. This type of oil and gas reservoir is obviously controlled by strike-slip faults, and the oil and gas reservoir will be distributed along the strike-slip faults. The existing analysis methods of the main controlling factors of oil and gas accumulation are mostly quantitative analysis, and the quantitative analysis mostly adopts the method of artificial weight assignment, which leads to the analysis results being greatly affected by subjective human factors and cannot be applied to the widely developed strike-slip fault-controlled oil and gas reservoirs.

[0003] Therefore, how to analyze the main controlling factors of strike-slip fault-controlled oil and gas reservoirs is an important problem that needs to be solved urgently in the industry. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a method and device for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoirs, so as to solve the problem that the main controlling factors analysis in the prior art is highly subjective.

[0005] According to a first aspect, an embodiment of the present invention provides a method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation, the method comprising:

[0006] Conduct strike-slip fault and stratum analysis in the target area to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area; the stratification characteristics at least include the geometric style and profile distribution of the strike-slip fault;

[0007] Acquire the property information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the position information of the target well location in the target area, acquire the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well location is located; the target well location is one of the well locations in the target area;

[0008] Determining the reservoir-forming factors to be analyzed in the target area based on the oil and gas reservoir-forming characteristic data;

[0009] Determining the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location;

[0010] A linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment is established to obtain the oil and gas reservoir assessment results in the target area.

[0011] In combination with the first aspect, in the first implementation of the first aspect, the analysis of strike-slip faults and strata in the target area to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area specifically includes:

[0012] Acquire 3D seismic data of the target area;

[0013] Based on three-dimensional seismic data and well-seismic calibration, strike-slip faults and stratigraphic analysis are carried out in the target area to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area.

[0014] In combination with the first aspect, in the second implementation of the first aspect, the acquiring of the attribute information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the position information of the target well in the target area, acquiring the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located, specifically includes:

[0015] Obtain the attribute information corresponding to the active interface of the strike-slip fault zone in the target area;

[0016] Determine the location information corresponding to the target well location;

[0017] Based on the location information, the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located is extracted from the attribute information.

[0018] In combination with the first aspect, in a third implementation manner of the first aspect, determining the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location specifically includes:

[0019] Obtain production data and pressure change data of target wells;

[0020] Based on production data and pressure change data, the unit pressure drop capacity of the target area is determined, and the unit pressure drop capacity is used to characterize the degree of oil and gas enrichment.

[0021] In combination with the first aspect, in a fourth implementation of the first aspect, the linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment is established to obtain the oil and gas reservoir assessment results of the target area, specifically including:

[0022] The reservoir-forming factors to be analyzed are taken as independent variables, and the oil and gas enrichment degree is taken as the dependent variable;

[0023] Conduct regression analysis between independent variables and dependent variables to obtain the influence coefficient of the reservoir-forming factors to be analyzed on the degree of oil and gas enrichment;

[0024] Based on the influence coefficient, the oil and gas accumulation assessment results of the target area are obtained.

[0025] In combination with any one of the first to fourth embodiments of the first aspect, in a fifth embodiment of the first aspect, the target well location is at least one well location in the target area;

[0026] Accordingly, the target well location is determined by the following steps:

[0027] Determine the screening factors for the target well location and the weight factor corresponding to each screening factor;

[0028] Based on the screening factors and weight factors, determine the screening value of each well location;

[0029] The well locations whose screening values ​​exceed the preset threshold are determined as target well locations.

[0030] In combination with the fifth implementation of the first aspect, in the sixth implementation of the first aspect, the target well position is further determined by the following steps:

[0031] The well position whose screening value exceeds the preset threshold and whose numerical value corresponding to the screening value is ranked before the preset value is determined as the target well position.

[0032] According to a second aspect, an embodiment of the present invention provides a device for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation, characterized in that the method comprises:

[0033] An analysis module is used to analyze the strike-slip faults and strata in the target area, and determine the active interface and stratification characteristics of the strike-slip fault zone in the target area; the stratification characteristics at least include the geometric style and profile distribution of the strike-slip faults;

[0034] an acquisition module, used to acquire the property information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the position information of the target well location in the target area, acquire the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well location is located; the target well location is one of the well locations in the target area;

[0035] A determination module, used to determine the reservoir-forming factors to be analyzed in the target area based on the oil and gas reservoir-forming characteristic data;

[0036] A calculation module, used to determine the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location;

[0037] The evaluation module is used to establish a linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment, and obtain the oil and gas reservoir evaluation results of the target area.

[0038] According to the third aspect, an embodiment of the present invention provides an electronic device, comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method for evaluating the main controlling factors of strike-slip and fault-controlled oil and gas reservoir formation as described in the first aspect or any preferred embodiment of the first aspect by executing the computer instructions.

[0039] According to the fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable the computer to execute the method for evaluating the main controlling factors of strike-slip and fault-controlled oil and gas reservoir formation as described in the first aspect or any preferred embodiment of the first aspect.

[0040] The method and device for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoirs provided by the present invention determine the active interface and stratification characteristics of the strike-slip fault zone in the target area by analyzing the strike-slip faults and strata in the target area, determine the reservoir factors to be analyzed in the target area in combination with relevant data of the target well positions in the target area, characterize the oil and gas enrichment degree of the target area by the unit pressure drop capacity of the well, perform linear regression analysis of the reservoir factors to be analyzed and the oil and gas enrichment degree, obtain the oil and gas reservoir evaluation result of the target area, quantitatively evaluate the influence of reservoir conditions on oil and gas reservoir enrichment, overcome the limitation of the general analysis of the main controlling factors of oil and gas reservoirs in the prior art, and can be widely used in the quantitative evaluation of the main controlling factors of strike-slip fault-controlled oil and gas reservoirs in ultra-deep craton basins and the like, filling the research gap of the quantitative evaluation of the main controlling factors of strike-slip fault-controlled oil and gas reservoirs in ultra-deep strata. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0042] Figure 1 It is a strike-slip fault seismic profile in the Shunbei area of ​​the Tarim Basin;

[0043] Figure 2 It is a strike-slip fault-controlled oil and gas reservoir profile in the Shunbei area of ​​the Tarim Basin;

[0044] Figure 3 This is one of the flow diagrams of the method for evaluating the main controlling factors of the strike-slip fault-controlled oil and gas reservoir formation according to the embodiment of the present application;

[0045] Figure 4 It is an analytical diagram of the through-well seismic profile of Shunbei 44X Well in the Tarim Basin obtained in the evaluation method of the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation according to the embodiment of the present application;

[0046] Figure 5 This is a second flow chart of the method for evaluating the main controlling factors of the strike-slip fault-controlled oil and gas reservoir according to an embodiment of the present application;

[0047] Figure 6 It is a schematic structural diagram of a device for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation according to an embodiment of the present application;

[0048] Figure 7It is a schematic diagram of the hardware structure of the electronic device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0049] 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0050] The fragmentation (dissolution) zone formed by multiple stages of strike-slip fault activity is the main space for oil and gas accumulation. This type of oil and gas reservoir is obviously controlled by strike-slip faults. The oil and gas reservoir will be distributed along the strike-slip faults, making the oil and gas reservoir controlled by strike-slip faults have near-source accumulation characteristics, such as the Kela Basin and the Tarim Basin.

[0051] Take the Craton Basin as an example. The Craton Basin is an important oil and gas basin. The stress field inside the Craton Basin is different from that in the ridge transition zone or plate boundary. Due to the stress concentration inside the basin, a small and medium-scale strike-slip fault system with a slip distance of no more than a few kilometers is formed. That is, the Craton Basin has a wide range of small and medium-scale strike-slip fault systems within the plate. Figure 1 and Figure 2 Taking the Tarim Basin as an example, due to the multi-stage activity of the fault system, the strike-slip fault system has many en echelon normal faults in the shallow layer, forming a negative flower-shaped structure. The strike-slip fault system has steep main sections in the deep layer, which can effectively communicate the deep source rocks. The multi-stage activity of the fault forms a broken zone. The strike-slip fault system is an efficient transport channel in the formation of oil and gas reservoirs. The reservoir space formed by this broken zone has natural source connectivity and is a favorable space for oil and gas accumulation. The oil and gas formed by the deep source rocks migrate to the upper broken (dissolution) zone through the strike-slip fault system and accumulate into reservoirs. The multi-stage activity of the fault is conducive to the formation of this broken (dissolution) zone.

[0052] Taking the Kela Basin and Tarim Basin as examples, for oil and gas reservoirs controlled by strike-slip faults (strike-slip fault-controlled oil and gas reservoirs), multiple periods of fault activities may form multi-period oil and gas filling accumulations. At the same time, the burial depth of such strike-slip fault-controlled oil and gas reservoirs is generally greater.

[0053] In the existing technology, the main controlling factors of oil and gas accumulation are analyzed by the following methods:

[0054] 1) Qualitative evaluation method of oil and gas accumulation conditions: This method qualitatively evaluates oil and gas accumulation factors, mainly including qualitative evaluation of source rocks, reservoir scale, cap rock thickness and other factors. This qualitative evaluation method only analyzes oil and gas accumulation factors in a general way. In a strict sense, it does not have a process analysis process, and the analysis effect is limited in actual exploration deployment;

[0055] 2) Identification method of main controlling factors of oil and gas accumulation in marine areas: This method is mainly based on the comparison of main accumulation factors in a certain area of ​​marine oil and gas basins, and artificially assigns values ​​according to the importance of accumulation factors to establish an identification matrix of main controlling factors of accumulation. The relative size of the value of the matrix eigenvector reflects the importance of the main controlling factors of accumulation.

[0056] However, the existing analysis methods of the main controlling factors of oil and gas accumulation are mostly quantitative analysis, and the method of artificially assigning weights is often used in quantitative analysis, which leads to the analysis results being greatly affected by subjective human factors and cannot be applied to widely developed strike-slip fault-controlled oil and gas reservoirs.

[0057] In order to solve the above problems, a method and device for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoirs are provided in the present embodiment. The main solution of the embodiment of the present invention is: to analyze the strike-slip faults and strata in the target area, and determine the active interface and stratification characteristics of the strike-slip fault zone in the target area; to obtain the attribute information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the position information of the target well in the target area, to obtain the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located; to determine the to-be-analyzed accumulation factors in the target area based on the oil and gas accumulation characteristic data; to determine the oil and gas enrichment degree in the target area based on the unit pressure drop capacity of the target well; to establish a linear regression analysis between the to-be-analyzed accumulation factors and the oil and gas enrichment degree, and to obtain the oil and gas accumulation evaluation results in the target area.

[0058] The stratification characteristics at least include the geometric style and profile distribution of the strike-slip fault, and the target well location is one of the well locations in the target area.

[0059] In the embodiment of the present invention, the active interface and stratification characteristics of the strike-slip fault zone in the target area are determined by analyzing the strike-slip faults and strata in the target area, and then the relevant data of the target well positions in the target area are combined to determine the reservoir factors to be analyzed in the target area, and then the unit pressure drop capacity of the well is used to characterize the oil and gas enrichment degree of the target area, and a linear regression analysis of the reservoir factors to be analyzed and the oil and gas enrichment degree is carried out to obtain the oil and gas reservoir evaluation results of the target area, and the quantitative evaluation of the influence of the reservoir conditions on the oil and gas reservoir enrichment overcomes the limitation of the general analysis of the main controlling factors of oil and gas reservoirs in the prior art, and can be widely used in the quantitative evaluation of the main controlling factors of oil and gas reservoirs controlled by strike-slip faults in ultra-deep strata in craton basins, etc., filling the research gap of the quantitative evaluation of the main controlling factors of oil and gas reservoirs controlled by strike-slip faults in ultra-deep strata.

[0060] The technical solutions of the embodiments of the present invention and how the technical solutions of the embodiments of the present invention solve the above-mentioned technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described in detail below with reference to specific drawings.

[0061] Embodiment 1

[0062] This embodiment provides a method for evaluating the main controlling factors of the formation of a strike-slip fault-controlled oil and gas reservoir. It can be understood that the method for evaluating the main controlling factors of the formation of a strike-slip fault-controlled oil and gas reservoir in the embodiment of the present invention can be used in electronic devices, including but not limited to computers, mobile terminals, etc. Figure 3 is a flow chart of a method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoirs according to an embodiment of the present invention. Figure 3 As shown, the method comprises the following steps:

[0063] S110, analyzing the strike-slip faults and stratigraphic positions in the target area, and determining the active interface (stratum interface) and stratification characteristics of the strike-slip fault zone in the target area. The stratification characteristics at least include the following contents: geometric patterns and profile distribution of the strike-slip faults.

[0064] Through the above-mentioned stratification characteristics, the planar distribution characteristics of the underlying vertical strike-slip faults and overlying en-echelon faults in the target area can be better characterized.

[0065] It can be understood that in this embodiment, the target area is the strike-slip fault-controlled oil and gas reservoir area, such as the Tarim Basin.

[0066] In this embodiment, based on the three-dimensional seismic data of the target area and on the basis of well-seismic calibration, a detailed analysis of faults and layers can be carried out to clarify the key stratigraphic interfaces and stratification characteristics of the target area.

[0067] The three-dimensional seismic data may be stored in advance in the electronic device, or may be obtained by the electronic device from the outside, for example, the electronic device obtains the data from an external detection device, or the electronic device extracts the data from external detection data, and so on.

[0068] There is no restriction on the specific acquisition method of the three-dimensional seismic data. It only needs to ensure that the electronic device can acquire the three-dimensional seismic data.

[0069] For example, based on the 3D seismic data of the No. 4 fault zone in the Shunbei area of ​​the Tarim Basin, and on the basis of well-seismic calibration, a detailed interpretation of the strike-slip faults and stratigraphic positions in the area was carried out, and the main active interface and stratification characteristics of the Shunbei No. 4 fault zone were clarified: Figure 4As shown in the figure, the oil and gas reservoirs in Shunbei area are carbonate rocks of the Yijianfang Formation and Yingshan Formation of the Ordovician System. The top interface of the reservoir generally corresponds to the top interface of the seismic profile. Interface; the thick mudstone of the Lianglitage Formation in the Upper Ordovician is the regional cap rock. The strike-slip fault has a steep section in the deep part and an en echelon normal fault upward.

[0070] S120, obtaining attribute information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the location information of the target well in the target area, obtaining oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located.

[0071] In this embodiment, the target well location is one of the well locations in the target area. Preferably, the target well location among all the wells in the target area can be determined by combining factors such as expert experience, well location, well location planning, and well location productivity.

[0072] The platform-basin area of ​​the Tarim Basin has developed ultra-deep marine carbonate oil and gas reservoirs along the strike-slip fault system, which are covered by thick mudstone caprocks. The oil and gas accumulation may be mainly affected by factors such as the size of the reservoir and the oil and gas filling conditions (such as the intensity of fault activity). The greater the intensity of fault activity, the more favorable it is for oil and gas migration and filling. Correspondingly, the oil and gas accumulation characteristic data corresponding to the Tarim Basin that can be obtained through the target well locations in the Tarim Basin are fault distance (A i ) and the en echelon width (B i ).

[0073] Taking the strike-slip fault-controlled oil and gas reservoirs in the Tarim Basin as an example, the oil and gas accumulation is closely related to the intensity of fault activity and the scale of the reservoir. The stronger the fault activity, the more conducive it is to the upward migration and accumulation of oil and gas. The greater the intensity of strike-slip fault activity, the more conducive it is to the fragmentation of the rock mass. At the same time, it may also be conducive to the fluid entering the fracture zone to dissolve and improve the reservoir space, forming a larger reservoir. Therefore, the size of the reservoir can be approximately characterized by the width of the en-seam formed by the strike-slip fault during activity, and the intensity of the fault activity can be characterized by the fault distance of the strike-slip fault at the key interface.

[0074] like Figure 4 As shown, taking Shunbei 44X well as an example, the corresponding attributes of Shunbei 44X can be obtained The en-echelon width of the interface is 2316.02m, and the corresponding segment of the Shunbei 44X well section is a pull-type segment with a fault distance of 43.83ms. Through the overall analysis of the Shunbei No. 4 fault zone, the fault distance and en-echelon width characteristics of the key wells in the Shunbei No. 4 fault zone can be obtained.

[0075] That is, in this embodiment, the acquired fault throw is used to characterize the intensity of strike-slip fault activity, and the acquired en echelon width is used to characterize the size of the reservoir.

[0076] S130. Determine the reservoir-forming factors to be analyzed in the target area based on the oil and gas reservoir-forming characteristic data.

[0077] The factors controlling the formation of oil and gas reservoirs by strike-slip faults may include the intensity of strike-slip fault activity, the size of the reservoir, the thickness of the source rock, the thickness of the cap rock, etc. In the Shunbei area of ​​the Tarim Basin, since the high-quality source rocks of the Cambrian Yuertusi Formation are widely distributed, and the thick mudstone of the Upper Ordovician is also stably distributed, the influence of factors such as source rock and cap rock on the enrichment of oil and gas accumulation can be ignored in this embodiment. For the Tarim Basin, the factors to be analyzed are the intensity of strike-slip fault activity and the size of the reservoir.

[0078] S140, based on the unit pressure drop capacity of the target well location, determine the oil and gas enrichment degree of the target area. The higher the unit pressure drop capacity of the well, the higher the oil and gas enrichment degree, and conversely, the lower the unit pressure drop capacity of the well, the lower the oil and gas enrichment degree.

[0079] In this embodiment, the unit pressure drop capacity of the target well location can be calculated through the production data and pressure change data of the target well location, as shown in Table 1 below.

[0080] Table 1

[0081] Well number Unit pressure drop capacity (t / Mpa) <![CDATA[T7 4 Break distance (ms)]]> <![CDATA[T6 3 En echelon width (m)]]> Shunbei 44X 14037.18 43.83 2416.02 Shunbei 4-5H 5136.40 10.17 3724.98 Shunbei 43X 6917.06 10.66 2784.07 Shunbei 4-6H 2674.66 9.84 2288.6 Shunbei 45X 4506.68 13.83 2716.84 Shunbei 4-4H 1698.87 13.41 3713.41 Shunbei 41X 1854.58 15.04 2388.52 Shunbei 4-2H 1833.21 16.17 2434.46 Shunbei 4-7H 7824.16 20.05 2671.57 Shunbei 42X 6282.07 24.91 3899.21 Shunbei 4-3H 2119.86 26.13 3105.99 Shunbei 4-1H 3092.39 29.08 2482.26

[0082] Please refer to Table 1, which shows the characteristics of the unit pressure drop capacity, fault distance and en echelon width of each well position in the Shunbei No. 4 Fault Zone in the Tarim Basin. Among them, the well numbered Shunbei 44X is configured as the target well position. The well has high capacity and relatively stable pressure, and the corresponding Shunbei 44X has the highest underlying oil and gas enrichment.

[0083] S150. Establish a linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment to obtain the oil and gas reservoir-forming assessment results of the target area.

[0084] The unit pressure drop capacity of oil and gas wells is used to characterize the degree of oil and gas enrichment. The regression analysis of the factors affecting oil and gas accumulation and the degree of oil and gas enrichment can be used to quantitatively evaluate the main controlling factors of oil and gas accumulation, and provide guidance for oil and gas exploration deployment.

[0085] After regression analysis, the results of oil and gas accumulation assessment are as follows: the degree of oil and gas enrichment is significantly positively correlated with the intensity of strike-slip fault activity and the size of the reservoir. In particular, the correlation index of fault activity intensity after regression analysis is higher than that of reservoir size, and its influence on oil and gas enrichment is significantly greater than that of reservoir size. Specifically, the larger the correlation index of a certain reservoir factor after fitting, the greater the influence on the degree of oil and gas enrichment. The larger the fitting correlation coefficient R, the higher the degree of fit of the fitting correlation equation.

[0086] The method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoirs of the present invention determines the active interface and stratification characteristics of the strike-slip fault zone in the target area by analyzing the strike-slip faults and strata in the target area, and then determines the reservoir factors to be analyzed in the target area in combination with relevant data of the target well positions in the target area, and then uses the unit pressure drop capacity of the well to characterize the oil and gas enrichment degree of the target area, and performs linear regression analysis between the reservoir factors to be analyzed and the oil and gas enrichment degree to obtain the oil and gas reservoir evaluation result of the target area, and quantitatively evaluates the influence of the reservoir conditions on the oil and gas reservoir enrichment, overcomes the limitation of the general analysis of the main controlling factors of oil and gas reservoirs in the prior art, and can be widely used in the quantitative evaluation of the main controlling factors of strike-slip fault-controlled oil and gas reservoirs in ultra-deep craton basins and the like, filling the research gap in the quantitative evaluation of the main controlling factors of strike-slip fault-controlled oil and gas reservoirs in ultra-deep strata.

[0087] In this embodiment, step S110 specifically includes the following steps:

[0088] S111. Acquire three-dimensional seismic data of the target area.

[0089] The three-dimensional seismic data may be stored in advance in the electronic device, or may be obtained by the electronic device from the outside, for example, the electronic device obtains the data from an external detection device, or the electronic device extracts the data from external detection data, and so on.

[0090] There is no restriction on the specific acquisition method of the three-dimensional seismic data. It only needs to ensure that the electronic device can acquire the three-dimensional seismic data.

[0091] S112. Based on 3D seismic data and well-seismic calibration, strike-slip faults and strata in the target area are analyzed to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area.

[0092] In this embodiment, step S120 specifically includes the following steps:

[0093] S121. Obtaining attribute information corresponding to the active interface of the strike-slip fault zone in the target area.

[0094] S122. Determine the location information corresponding to the target well location.

[0095] The location information may be pre-stored in the electronic device, or may be acquired by the electronic device from the outside, for example, acquired by the electronic device from an external location detection device, or extracted by the electronic device from external coordinate data, and so on.

[0096] There is no restriction on the specific form of obtaining the location information. It only needs to ensure that the electronic device can obtain the location information.

[0097] S123. Based on the location information, extract the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located from the attribute information.

[0098] After obtaining the location information of the target well, the oil and gas accumulation characteristic data at the corresponding location can be extracted from the attribute information corresponding to the active interface of the strike-slip fault zone obtained previously, and these oil and gas accumulation characteristic data are the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located.

[0099] In this embodiment, step S140 specifically includes the following steps:

[0100] S141. Obtain production data and pressure change data of the target well location.

[0101] The above-mentioned production data and pressure change data collect real-time production data and real-time pressure change data of the target area within a preset time period, which provide data support for the subsequent acquisition of the oil and gas enrichment degree of the target area. The preset time period refers to the time period of the target well position that needs to be acquired in real time, which can be one month, one quarter or one year, etc., and this embodiment does not limit it.

[0102] S142. Based on the production data and the pressure change data, determine the unit pressure drop capacity of the target area, and use the unit pressure drop capacity to characterize the oil and gas enrichment degree. The higher the unit pressure drop capacity of the well, the higher the oil and gas enrichment degree, and vice versa, the lower the unit pressure drop capacity of the well, the lower the oil and gas enrichment degree.

[0103] In this embodiment, step S150 specifically includes the following steps:

[0104] S151. Take the reservoir-forming factors to be analyzed as independent variables and the oil and gas enrichment degree as dependent variables.

[0105] S152, perform regression analysis between independent variables and dependent variables to obtain the influence coefficient of the reservoir-forming factors to be analyzed on the oil and gas enrichment degree. It should be noted that this step obtains the influence coefficient of each reservoir-forming factor to be analyzed on the oil and gas enrichment degree.

[0106] S153. Based on the influence coefficient, the oil and gas accumulation assessment results of the target area are obtained.

[0107] Taking the Tarim Basin as an example, with fault distance and en echelon width as independent variables and unit pressure drop capacity (oil and gas enrichment degree) as dependent variable, the regression equation between the three can be obtained as follows: C (unit pressure drop capacity) = 218.3705 × A (fault distance) + 0.112022 × B (en echelon width) + 265.9774, and the fitting influence coefficient, R = 0.6. After regression analysis, it is believed that the oil and gas enrichment degree is significantly positively correlated with the intensity of strike-slip fault activity and the scale of reservoirs, especially the correlation index of fault activity intensity after regression analysis is as high as 218.3805, and its influence on oil and gas enrichment is significantly greater than that on the scale of reservoirs. The larger the correlation index after fitting of a reservoir-forming element, the greater the influence on the oil and gas enrichment degree, and the larger the fitting influence coefficient R, the higher the fit of the fitting correlation equation.

[0108] Embodiment 2

[0109] This embodiment provides a method for evaluating the main controlling factors of the formation of a strike-slip fault-controlled oil and gas reservoir. It can be understood that the method for evaluating the main controlling factors of the formation of a strike-slip fault-controlled oil and gas reservoir in the embodiment of the present invention can be used in electronic devices, including but not limited to computers, mobile terminals, etc. Figure 5 is a flow chart of a method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoirs according to an embodiment of the present invention. Figure 5 As shown, the method comprises the following steps:

[0110] S210. Analyze the strike-slip faults and stratigraphic positions in the target area to determine the active interface (stratum interface) and stratification characteristics of the strike-slip fault zone in the target area.

[0111] For details of step S210, please refer to Figure 3 Step S110 of the embodiment is not described in detail here.

[0112] S220, obtaining attribute information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the location information of the target well in the target area, obtaining oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located.

[0113] In this embodiment, the target well location is at least one well location in the target area. Preferably, the target well location among all wells in the target area can be determined by combining expert experience, well location location, well location planning, well location productivity and other factors.

[0114] Specifically, the target well location is determined by:

[0115] A10. Determine the screening factors for the target well location and the weight factor corresponding to each screening factor.

[0116] First, it is necessary to determine the screening factors among factors such as expert experience, well location, well planning, and well productivity, and assign a weight factor to each selected screening factor, where the weight factor ranges from 0 to 1. The larger the value of the weight factor, the more important the corresponding screening factor is. Conversely, the smaller the value of the weight factor, the less important the corresponding screening factor is.

[0117] A weight factor corresponding to a numerical value of the screening factor may be assigned according to the importance of the screening factor.

[0118] A20. Based on the screening factors and weight factors, determine the screening value of each well location.

[0119] Afterwards, after obtaining the specific values ​​of the screening factors, weight factors and the above two parameters for each well location in the target area, the weight value of each screening factor can be obtained by multiplying the screening factor by its corresponding weight factor. By accumulating the weight values ​​of all screening factors, the screening value of each well location can be obtained.

[0120] A30. Finally, the well positions whose screening values ​​exceed the preset threshold are determined as target well positions. The above preset threshold can be adjusted according to actual needs.

[0121] As another preferred implementation of this embodiment, the wells whose screening values ​​exceed the preset threshold and whose numerical values ​​rank in the top N are determined as target wells. For example, if the screening values ​​of 10 wells exceed the preset threshold, the 10 wells are sorted according to the numerical values ​​of the screening values, and the top 5 wells are selected as the final target wells. N is an adjustable preset value.

[0122] Preferably, if the wells with screening values ​​exceeding the preset threshold are M, N does not exceed M. N can be a specific number not less than M, or a specific ratio value based on M, such as 50%, that is, the wells with the top 50% screening values ​​are selected from M as target wells.

[0123] S230. Determine the reservoir-forming factors to be analyzed in the target area based on the oil and gas reservoir-forming characteristic data.

[0124] For details of step S230, please refer to Figure 3 Step S130 of the embodiment is not described in detail here.

[0125] S240. Determine the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location.

[0126] For details of step S240, please refer to Figure 3 Step S140 of the embodiment is not described in detail here.

[0127] S250. Establish a linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment to obtain the oil and gas reservoir-forming assessment results of the target area.

[0128] Different from Figure 3 In step S150 shown, the main controlling factors of strike-slip fault-controlled oil and gas reservoirs are quantitatively evaluated by using the regression analysis method of single-well oil and gas enrichment degree and reservoir-forming influencing factors. In step S250, a regression analysis between the independent variable and the dependent variable is performed on each target well location, and the regression analysis results related to all target well locations are combined to obtain the influence coefficient between each independent variable and the dependent variable, and then obtain the oil and gas reservoir evaluation results of the target area.

[0129] After completing the quantitative analysis of a single well location, a comprehensive analysis of the relevant results is conducted to form a quantitative assessment of the main controlling factors of oil and gas reservoir formation in the target area as a whole. The main controlling factors of oil and gas reservoir formation in a single well location or even in a larger geographical area are quantitatively analyzed, and the regression analysis model is dynamically adjusted based on the results to improve the accuracy of the quantitative analysis.

[0130] For details of other aspects of step S250, please refer to Figure 3 Step S150 of the embodiment is not described in detail here.

[0131] The method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoirs of the present invention determines the active interface and stratification characteristics of the strike-slip fault zone in the target area by analyzing the strike-slip faults and strata in the target area, and then determines the reservoir factors to be analyzed in the target area in combination with relevant data of the target well positions in the target area, and then uses the unit pressure drop capacity of the well to characterize the oil and gas enrichment degree of the target area, and performs linear regression analysis between the reservoir factors to be analyzed and the oil and gas enrichment degree to obtain the oil and gas reservoir evaluation result of the target area, and quantitatively evaluates the influence of the reservoir conditions on the oil and gas reservoir enrichment, overcomes the limitation of the general analysis of the main controlling factors of oil and gas reservoirs in the prior art, and can be widely used in the quantitative evaluation of the main controlling factors of strike-slip fault-controlled oil and gas reservoirs in ultra-deep craton basins and the like, filling the research gap in the quantitative evaluation of the main controlling factors of strike-slip fault-controlled oil and gas reservoirs in ultra-deep strata.

[0132] Embodiment 3

[0133] This embodiment provides an evaluation device for the main controlling factors of the formation of strike-slip fault-controlled oil and gas reservoirs. It can be understood that the evaluation device for the main controlling factors of the formation of strike-slip fault-controlled oil and gas reservoirs in the embodiment of the present invention can be used in electronic devices, including but not limited to computers, mobile terminals, etc. Figure 6 is a schematic diagram of the structure of an evaluation device for the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation according to an embodiment of the present invention. Figure 6 As shown, the device comprises:

[0134] The analysis module 110 is used to analyze the strike-slip faults and strata in the target area, determine the active interface (stratum interface) and stratification characteristics of the strike-slip fault zone in the target area, and the above-mentioned stratification characteristics at least include the following contents: strike-slip fault geometry and profile distribution.

[0135] Through the above-mentioned stratification characteristics, the planar distribution characteristics of the underlying vertical strike-slip faults and overlying en-echelon faults in the target area can be better characterized.

[0136] It can be understood that in this embodiment, the target area is the strike-slip fault-controlled oil and gas reservoir area, such as the Tarim Basin.

[0137] In this embodiment, based on the three-dimensional seismic data of the target area and on the basis of well-seismic calibration, a detailed analysis of faults and layers can be carried out to clarify the key stratigraphic interfaces and stratification characteristics of the target area.

[0138] The three-dimensional seismic data may be stored in advance in the electronic device, or may be obtained by the electronic device from the outside, for example, the electronic device obtains the data from an external detection device, or the electronic device extracts the data from external detection data, and so on.

[0139] There is no restriction on the specific acquisition method of the three-dimensional seismic data. It only needs to ensure that the electronic device can acquire the three-dimensional seismic data.

[0140] For example, based on the 3D seismic data of the No. 4 Fault Zone in Shunbei area of ​​the Tarim Basin, and on the basis of well-seismic calibration, a detailed interpretation of the strike-slip faults and stratigraphic positions in the area was carried out, and the main active interface and stratification characteristics of the No. 4 Fault Zone in Shunbei were clarified: the oil and gas reservoirs in Shunbei area are carbonate rocks of the Yijianfang Formation and the Yingshan Formation of the Ordovician System, and the top interface of the reservoir generally corresponds to the top of the seismic section. Interface; the thick mudstone of the Lianglitage Formation in the Upper Ordovician is the regional cap rock. The strike-slip fault has a steep section in the deep part and an en echelon normal fault upward.

[0141] The acquisition module 120 is used to acquire the property information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the location information of the target well in the target area, acquire the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located.

[0142] In this embodiment, the target well location is one of the well locations in the target area. Preferably, the target well location among all the wells in the target area can be determined by combining factors such as expert experience, well location, well location planning, and well location productivity.

[0143] The platform-basin area of ​​the Tarim Basin has developed ultra-deep marine carbonate oil and gas reservoirs along the strike-slip fault system, which are covered by thick mudstone caprocks. The oil and gas accumulation may be mainly affected by factors such as the size of the reservoir and the oil and gas filling conditions (such as the intensity of fault activity). The greater the intensity of fault activity, the more favorable it is for oil and gas migration and filling. Correspondingly, the oil and gas accumulation characteristic data corresponding to the Tarim Basin that can be obtained through the target well locations in the Tarim Basin are fault distance (A i ) and the en echelon width (B i ).

[0144] Taking the strike-slip fault-controlled oil and gas reservoirs in the Tarim Basin as an example, the oil and gas accumulation is closely related to the intensity of fault activity and the scale of the reservoir. The stronger the fault activity, the more conducive it is to the upward migration and accumulation of oil and gas. The greater the intensity of strike-slip fault activity, the more conducive it is to the fragmentation of the rock mass. At the same time, it may also be conducive to the fluid entering the fracture zone to dissolve and improve the reservoir space, forming a larger reservoir. Therefore, the size of the reservoir can be approximately characterized by the width of the en-seam formed by the strike-slip fault during activity, and the intensity of the fault activity can be characterized by the fault distance of the strike-slip fault at the key interface.

[0145] Taking Shunbei 44X well as an example, the corresponding attributes of Shunbei 44X can be obtained The en-echelon width of the interface is 2316.02m, and the corresponding segment of the Shunbei 44X well section is a pull-type segment with a fault distance of 43.83ms. Through the overall analysis of the Shunbei No. 4 fault zone, the fault distance and en-echelon width characteristics of the key wells in the Shunbei No. 4 fault zone can be obtained.

[0146] That is, in this embodiment, the acquired fault throw is used to characterize the intensity of strike-slip fault activity, and the acquired en echelon width is used to characterize the size of the reservoir.

[0147] The determination module 130 is used to determine the reservoir formation factors to be analyzed in the target area based on the oil and gas reservoir formation characteristic data.

[0148] The factors controlling the formation of oil and gas reservoirs by strike-slip faults may include the intensity of strike-slip fault activity, the size of the reservoir, the thickness of the source rock, the thickness of the cap rock, etc. In the Shunbei area of ​​the Tarim Basin, since the high-quality source rocks of the Cambrian Yuertusi Formation are widely distributed, and the thick mudstone of the Upper Ordovician is also stably distributed, the influence of factors such as source rock and cap rock on the enrichment of oil and gas accumulation can be ignored in this embodiment. For the Tarim Basin, the factors to be analyzed are the intensity of strike-slip fault activity and the size of the reservoir.

[0149] The calculation module 140 is used to determine the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location. The higher the unit pressure drop capacity of the well, the higher the oil and gas enrichment degree. Conversely, the lower the unit pressure drop capacity of the well, the lower the oil and gas enrichment degree.

[0150] The evaluation module 150 is used to establish a linear regression analysis between the reservoir formation factors to be analyzed and the oil and gas enrichment degree, and obtain the oil and gas reservoir formation evaluation results of the target area.

[0151] The unit pressure drop capacity of oil and gas wells is used to characterize the degree of oil and gas enrichment. The regression analysis of the factors affecting oil and gas accumulation and the degree of oil and gas enrichment can be used to quantitatively evaluate the main controlling factors of oil and gas accumulation, and provide guidance for oil and gas exploration deployment.

[0152] After regression analysis, the results of oil and gas accumulation assessment are as follows: the degree of oil and gas enrichment is significantly positively correlated with the intensity of strike-slip fault activity and the size of the reservoir. In particular, the correlation index of fault activity intensity after regression analysis is higher than that of reservoir size, and its influence on oil and gas enrichment is significantly greater than that of reservoir size. Specifically, the larger the correlation index of a certain reservoir factor after fitting, the greater the influence on the degree of oil and gas enrichment. The larger the fitting correlation coefficient R, the higher the degree of fit of the fitting correlation equation.

[0153] The device for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoirs of the present invention determines the active interface and stratification characteristics of the strike-slip fault zone in the target area by analyzing the strike-slip faults and strata in the target area, and then determines the reservoir factors to be analyzed in the target area in combination with relevant data of the target well positions in the target area, and then uses the unit pressure drop capacity of the well to characterize the oil and gas enrichment degree in the target area, and performs linear regression analysis of the reservoir factors to be analyzed and the oil and gas enrichment degree to obtain the oil and gas reservoir evaluation result of the target area, and quantitatively evaluates the influence of the reservoir conditions on the oil and gas reservoir enrichment, overcomes the limitation of the general analysis of the main controlling factors of oil and gas reservoirs in the prior art, and can be widely used in the quantitative evaluation of the main controlling factors of strike-slip fault-controlled oil and gas reservoirs in ultra-deep craton basins and the like, filling the research gap in the quantitative evaluation of the main controlling factors of strike-slip fault-controlled oil and gas reservoirs in ultra-deep strata.

[0154] Embodiment 4

[0155] Figure 7 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 7 As shown, the electronic device may include: a processor 510, a communication interface 520, a memory 530 and a communication bus 540, wherein the processor 510, the communication interface 520 and the memory 530 communicate with each other through the communication bus 540. The processor 510 may call the logic command in the memory 530 to execute the evaluation method of the main control factors of the strike-slip fault-controlled oil and gas reservoir, and the method includes:

[0156] Conduct strike-slip fault and stratum analysis in the target area to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area; the stratification characteristics at least include the geometric style and profile distribution of the strike-slip fault;

[0157] Acquire the property information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the position information of the target well location in the target area, acquire the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well location is located; the target well location is one of the well locations in the target area;

[0158] Determining the reservoir-forming factors to be analyzed in the target area based on the oil and gas reservoir-forming characteristic data;

[0159] Determining the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location;

[0160] A linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment is established to obtain the oil and gas reservoir assessment results in the target area.

[0161] In addition, the logic commands in the above-mentioned memory 530 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software medium, and the computer software medium is stored in a storage medium, including several commands to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0162] Embodiment 5

[0163] On the other hand, the present invention further provides a computer program medium, the computer program medium includes a computer program, the computer program can be stored in a non-transitory computer-readable storage medium, when the computer program is executed by a processor, the computer can execute the method for evaluating the main controlling factors of the strike-slip fault-controlled oil and gas reservoir provided by the above methods, the method comprising:

[0164] Conduct strike-slip fault and stratum analysis in the target area to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area; the stratification characteristics at least include the geometric style and profile distribution of the strike-slip fault;

[0165] Acquire the property information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the position information of the target well location in the target area, acquire the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well location is located; the target well location is one of the well locations in the target area;

[0166] Determining the reservoir-forming factors to be analyzed in the target area based on the oil and gas reservoir-forming characteristic data;

[0167] Determining the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location;

[0168] A linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment is established to obtain the oil and gas reservoir assessment results in the target area.

[0169] Embodiment 6

[0170] In another aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to execute the method for evaluating the main controlling factors of the formation of strike-slip fault-controlled oil and gas reservoirs provided by the above methods, the method comprising:

[0171] Conduct strike-slip fault and stratum analysis in the target area to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area; the stratification characteristics at least include the geometric style and profile distribution of the strike-slip fault;

[0172] Acquire the property information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the position information of the target well location in the target area, acquire the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well location is located; the target well location is one of the well locations in the target area;

[0173] Determining the reservoir-forming factors to be analyzed in the target area based on the oil and gas reservoir-forming characteristic data;

[0174] Determining the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location;

[0175] A linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment is established to obtain the oil and gas reservoir assessment results in the target area.

[0176] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0177] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software medium, and the computer software medium can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of commands to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0178] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoirs, characterized in that: The method comprises: Conduct strike-slip fault and stratum analysis in the target area to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area; the stratification characteristics at least include the geometric style and profile distribution of the strike-slip fault; Acquire the property information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the position information of the target well location in the target area, acquire the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well location is located; the target well location is one of the well locations in the target area; Determining the reservoir-forming factors to be analyzed in the target area based on the oil and gas reservoir-forming characteristic data; Determining the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location; A linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment is established to obtain the oil and gas reservoir assessment results in the target area.

2. The method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation according to claim 1 is characterized in that: The analysis of strike-slip faults and strata in the target area to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area specifically includes: Acquire 3D seismic data in the target area; Based on three-dimensional seismic data and well-seismic calibration, strike-slip faults and stratigraphic analysis are carried out in the target area to determine the active interface and stratification characteristics of the strike-slip fault zone in the target area.

3. The method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation according to claim 1 is characterized in that: The obtaining of the property information corresponding to the active interface of the strike-slip fault zone in the target area, and obtaining the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located based on the location information of the target well in the target area, specifically includes: Obtain the attribute information corresponding to the active interface of the strike-slip fault zone in the target area; Determine the location information corresponding to the target well location; Based on the location information, the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well is located is extracted from the attribute information.

4. The method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation according to claim 1 is characterized in that: The step of determining the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location specifically includes: Obtain production data and pressure change data of target wells; Based on production data and pressure change data, the unit pressure drop capacity of the target area is determined, and the unit pressure drop capacity is used to characterize the degree of oil and gas enrichment.

5. The method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation according to claim 1, characterized in that: The linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment is established to obtain the oil and gas reservoir-forming assessment results of the target area, specifically including: The reservoir-forming factors to be analyzed are taken as independent variables, and the oil and gas enrichment degree is taken as the dependent variable; Conduct regression analysis between independent variables and dependent variables to obtain the influence coefficient of the reservoir-forming factors to be analyzed on the degree of oil and gas enrichment; Based on the influence coefficient, the oil and gas accumulation assessment results of the target area are obtained.

6. The method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation according to any one of claims 1 to 5, characterized in that: The target well location is at least one well location in the target area; Accordingly, the target well location is determined by the following steps: Determine the screening factors for the target well location and the weight factor corresponding to each screening factor; Based on the screening factors and weight factors, determine the screening value of each well location; The well locations whose screening values ​​exceed the preset threshold are determined as target well locations.

7. The method for evaluating the main controlling factors of strike-slip fault-controlled oil and gas reservoir formation according to claim 6, characterized in that: The target well location is also determined by the following steps: The well position whose screening value exceeds the preset threshold and whose numerical value corresponding to the screening value is ranked before the preset value is determined as the target well position.

8. An evaluation device for the main controlling factors of strike-slip fault-controlled oil and gas reservoirs, characterized in that: The device comprises: An analysis module is used to analyze the strike-slip faults and strata in the target area, and determine the active interface and stratification characteristics of the strike-slip fault zone in the target area; the stratification characteristics at least include the geometric style and profile distribution of the strike-slip faults; an acquisition module, used to acquire the property information corresponding to the active interface of the strike-slip fault zone in the target area, and based on the position information of the target well location in the target area, acquire the oil and gas accumulation characteristic data corresponding to the strike-slip fault segment where the target well location is located; the target well location is one of the well locations in the target area; A determination module, used to determine the reservoir-forming factors to be analyzed in the target area based on the oil and gas reservoir-forming characteristic data; A calculation module, used to determine the oil and gas enrichment degree of the target area based on the unit pressure drop capacity of the target well location; The evaluation module is used to establish a linear regression analysis between the reservoir-forming factors to be analyzed and the degree of oil and gas enrichment, and obtain the oil and gas reservoir evaluation results of the target area.

9. 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 evaluating the main controlling factors of the formation of strike-slip and fault-controlled oil and gas reservoirs as described in any one of claims 1 to 7 are implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for evaluating the main controlling factors of the formation of strike-slip fault-controlled oil and gas reservoirs as described in any one of claims 1 to 7 are implemented.

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