阅读说明：本技术 一种岩浆底辟与伸展作用叠合的模拟装置及分析方法 (Simulation device and analysis method for superposition of magma diapir and stretching action ) 是由 高斌 邢文军 于福生 付兴深 王方鲁 张明 吴鑫 霍丽丽 徐文会 张敬艺 张建坤 于 2018-08-02 设计创作，主要内容包括：本发明公开了一种岩浆底辟与伸展作用叠合的模拟装置及分析方法,属于断层成因机制研究领域。所述岩浆底辟与伸展作用叠合的模拟分析方法通过将介质容器内填充的介质侵入装填有多层砂子的砂箱中,再启动第一发动机和第二发动机拉伸砂箱,对砂体进行切割,得到第一切片；先启动第一发动机和第二发动机拉伸装填有多层砂子的砂箱,再将介质容器内填充的介质侵入到砂箱中,对砂体进行切割,得到第二切片；根据第一切片和第二切片,得到多个典型构造变形样式,将其与目标区域的构造变形样式对比,如果目标区域的构造变形样式与其中的任意一个或多个的特征相似,则确定目标区域的构造变形的成因类型及典型构造变形样式,有助于指导目标区域的地震解释。(The invention discloses a simulation device and an analysis method for superposition of magma diapir and stretching action, and belongs to the field of fault cause mechanism research. According to the simulation analysis method for superposition of the magma diapir and the stretching action, a medium filled in a medium container is immersed into a sand box filled with multiple layers of sand, then a first engine and a second engine are started to stretch the sand box, and a sand body is cut to obtain a first slice; the method comprises the steps that a first engine and a second engine are started firstly, the sand box filled with multiple layers of sand is stretched, then the medium filled in a medium container is immersed into the sand box, and a sand body is cut to obtain a second slice; and obtaining a plurality of typical structural deformation patterns according to the first slice and the second slice, comparing the typical structural deformation patterns with the structural deformation patterns of the target area, and if the structural deformation patterns of the target area are similar to any one or more characteristics of the target area, determining the cause type and the typical structural deformation patterns of the structural deformation of the target area, thereby being helpful for guiding the seismic interpretation of the target area.)

1. A simulation device for superposition of a magma diapir and stretching action is characterized by comprising a sand box (1), a support table (2), a first engine (3), a second engine (4) and a medium container (5),

the support table (2) comprises a support plate (21) and support legs (22) which are connected, and the support plate (21) is arranged on the support legs (22);

the sand box (1), the first engine (3) and the second engine (4) are arranged at the upper part of the supporting plate (21), the first engine (3) and the second engine (4) are symmetrically arranged at two sides of the sand box (1), and the medium container (5) is arranged at the lower part of the supporting plate (21);

the supporting plate (21) is provided with a first through hole (211), the bottom of the sand box (1) is provided with a second through hole (13), and the second through hole (13) is communicated with the medium container (5) through the first through hole (211).

2. Simulation device for the superposition of maglev diapir and stretching according to claim 1, characterized in that said flask (1) comprises a stretching plate (11) and a wall plate (12);

one end of the wall plate (12) is connected with the stretching steel plate (11), and the plane where the wall plate (12) is located is vertical to the plane where the stretching steel plate (11) is located;

the wall plate (12) is provided with a second through hole (13).

3. Simulation setup for the superposition of maglev diapir and stretching according to claim 1, characterised in that the line connecting the first engine (3) and the second engine (4) is perpendicular to the line of the axis of the medium container (5).

4. Simulation device for the superposition of maglev diapir and stretching according to claim 1, characterized in that the medium container (5) comprises a body (51), a barrier plate (52) and a tie rod (53);

the blocking plate (52) is arranged in the body (51), and the pull rod (53) is connected with the blocking plate (52).

5. Simulation device for the superposition of maglev diapir and stretching according to claim 4, characterized in that the medium container (5) further comprises a fixing plate (54) arranged inside the body (51) and located in the lower part of the barrier plate (52);

the fixing plate (54) is provided with a threaded hole, the outer wall of the pull rod (53) is provided with threads, and the pull rod (53) penetrates through the fixing plate (54) to be connected with the blocking plate (52).

6. The simulation device for superposition of maglev diapir and stretching according to claim 4, wherein the body (51) is filled with silica gel, and the viscosity of the silica gel is in the range of 500-1000 Pa-s.

7. Simulation device for the superposition of maglev diapir and stretching according to claim 4, characterized in that the outer wall of the body (51) is provided with graduations (55).

8. A simulation analysis method for superposition of a maglev diapir and a stretching action, which is based on the simulation device for superposition of a maglev diapir and a stretching action of any one of the above claims 1-7, and is characterized in that the method comprises the following steps:

filling a plurality of layers of sand into a sand box (1), infiltrating a medium filled in a medium container (5) into the sand box (1) through a first through hole (211) and a second through hole (13), and then starting a first engine (3) and a second engine (4) to stretch the sand box (1);

cutting the sand body in the sand box (1) to obtain a first slice;

filling a plurality of layers of sand into the sand box (1), starting the first engine (3) and the second engine (4) to stretch the sand box (1), and then infiltrating the medium filled in the medium container (5) into the sand box (1) through the first through hole (211) and the second through hole (13);

cutting the sand body in the sand box (1) to obtain a second slice;

obtaining a plurality of typical construction deformation patterns according to the first slice and the second slice;

obtaining a structural deformation pattern of the target area according to the drilling data and the seismic data of the target area;

comparing the plurality of typical construction deformation patterns with the construction deformation pattern of the target region, and if the construction deformation pattern of the target region is similar to the characteristics of any one or more of the plurality of typical construction deformation patterns, determining the cause type and the typical construction deformation pattern of the construction deformation of the target region.

9. The method of simulated analysis of maglev diapir and stretch action superposition as claimed in claim 8, wherein said typical formation deformation patterns comprise profile formation deformation patterns and planar formation deformation patterns.

10. The method of simulated analysis of maglev diapir and stretch superposition as claimed in claim 8, wherein said features comprise variation of slip for fault dip.

Technical Field

The invention relates to the field of fault cause mechanism research, in particular to a simulation device and an analysis method for superposition of a magma diapir and stretching action.

Background

The magma diapir is an important internal dynamic geological function as an expression form of magma movement. The activity of the magma is closely related to the formation and evolution of basins which play important control roles in the generation and discharge of hydrocarbons and the formation of traps and the formation of oil-gas reservoirs and the like of the source rocks. Therefore, the research on the relationship between the magma diapir and the extension of the basin has important significance for oil and gas exploration and development.

At present, a device for researching a diapir structure in oil and gas exploration is disclosed (Chinese patent application with publication number CN 200965572Y), and provides a structure physical simulation test diapir device capable of completing different diapir structure experiments. With the above structure, the test was conducted by cutting the sand body or directly observing the result formed.

However, the method of using the slurry diapir and the stretching as the cause of the fracture structure pattern to search the structural deformation combination pattern has no related device or method, and the cause of the existing partial fracture structure pattern cannot be explained and the development pattern cannot be predicted.

Disclosure of Invention

In order to explore the cause of the existing partial fracture structure pattern and predict the development pattern, the invention provides a simulation device and an analysis method for superposition of a magma diapir and stretching action.

Specifically, the method comprises the following technical scheme:

in one aspect, embodiments of the present invention provide a simulation apparatus for superposition of a maglev diapir and stretching, the apparatus comprising a flask, a support table, a first engine, a second engine, and a medium container, wherein,

the support table comprises a support plate and support legs which are connected, and the support plate is arranged on the support legs;

the sand box, the first engine and the second engine are arranged on the upper part of the supporting plate, the first engine and the second engine are symmetrically arranged on two sides of the sand box, and the medium container is arranged on the lower part of the supporting plate;

the supporting plate is provided with a first through hole, the bottom of the sand box is provided with a second through hole, and the second through hole is communicated with the medium container through the first through hole.

Optionally, the flask comprises an extension steel plate and a wall plate;

one end of the wall plate is connected with the stretching steel plate, and the plane of the wall plate is vertical to the plane of the stretching steel plate;

the wall plate is provided with a second through hole.

Optionally, a line connecting the first engine and the second engine is perpendicular to a line on which an axis of the medium container is located.

Optionally, the media container comprises a body, a barrier plate, and a tie rod;

the blocking plate is arranged in the body, and the pull rod is connected with the blocking plate.

Optionally, the media container further comprises a fixed plate disposed within the body and located below the barrier plate;

the fixed plate is provided with a threaded hole, the outer wall of the pull rod is provided with threads, and the pull rod penetrates through the fixed plate to be connected with the blocking plate.

Optionally, the body is filled with silica gel, and the viscosity of the silica gel is in the range of 500-1000Pa · s.

Optionally, the outer wall of the body is provided with a scale.

In another aspect, an embodiment of the present invention further provides a method for simulating and analyzing superposition of a magma diapir and a stretching action, which is based on the device for simulating superposition of a magma diapir and a stretching action in any one of the above first aspect, and the method includes:

filling multiple layers of sand into a sand box, enabling the medium filled in a medium container to enter the sand box through a first through hole and a second through hole, and then starting a first engine and a second engine to stretch the sand box;

cutting the sand body in the sand box to obtain a first slice;

filling multiple layers of sand into the sand box, starting the first engine and the second engine to stretch the sand box, and then enabling the medium filled in the medium container to enter the sand box through the first through hole and the second through hole;

cutting the sand body in the sand box to obtain a second slice;

obtaining a plurality of typical construction deformation patterns according to the first slice and the second slice;

obtaining a structural deformation pattern of the target area according to the drilling data and the seismic data of the target area;

comparing the plurality of typical construction deformation patterns with the construction deformation pattern of the target region, and if the construction deformation pattern of the target region is similar to the characteristics of any one or more of the plurality of typical construction deformation patterns, determining the cause type and the typical construction deformation pattern of the construction deformation of the target region.

Optionally, the exemplary construction deformation patterns include a cross-sectional construction deformation pattern and a planar construction deformation pattern.

Optionally, the characteristic comprises an amount of change in fault-prone slip.

The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:

the method comprises the steps of filling multiple layers of sand into a sand box, enabling a medium filled in a medium container to enter the sand box through a first through hole and a second through hole, then starting a first engine and a second engine to stretch the sand box, cutting the sand body in the sand box to obtain a first slice with a rock pulp diapir and a stretching effect, then filling multiple layers of sand into the sand box, starting the first engine and the second engine to stretch the sand box, enabling the medium filled in the medium container to enter the sand box through the first through hole and the second through hole, cutting the sand body in the sand box to obtain a second slice with the rock pulp diapir after the stretching effect, obtaining multiple typical structural deformation patterns according to the first slice and the second slice, obtaining the structural deformation pattern of a target area according to drilling data and seismic data of the target area, and comparing the multiple typical structural deformation patterns with the structural deformation pattern of the target area, if the structural deformation pattern of the target area is similar to the characteristics of any one or more of the plurality of typical structural deformation patterns, the type of the cause of the structural deformation of the target area and the typical structural deformation patterns are determined, a technical means is provided for exploring the cause of the existing partial fracture structural patterns and predicting the development patterns of the partial fracture structural patterns, and the method is helpful for guiding the seismic interpretation of the target area.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a simulation apparatus for superposition of a magma diapir and stretching according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method for simulation analysis of stacking of magma diapir and stretching according to an embodiment of the present invention;

FIG. 3 is a plan evolution diagram of a first slice obtained by a simulation analysis method of stacking magma diapir and stretching according to an embodiment of the present invention;

FIG. 4 is a cross-sectional slice view of a first slice obtained by a simulation analysis method using a magma diapir and stretching superposition according to an embodiment of the present invention;

FIG. 5 is a plan evolution of a second slice obtained by a simulation analysis method of stacking magma diapir and extension according to an embodiment of the present invention;

FIG. 6 is a cross-sectional slice view of a second slice obtained by a simulation analysis method using a magma diapir and extension superposition according to an embodiment of the present invention;

FIG. 7 is a diagram of the results of an N1 well seismic profile and structural deformation pattern interpretation in a study area;

FIG. 8 is a diagram of the results of B9-1 well seismic profile and structural deformation pattern interpretation in the study area.

The reference numerals in the figures are denoted respectively by:

1-sand box, 11-stretching steel plate, 12-wall plate, 13-second through hole,

2-support table, 21-support plate, 22-support leg, 211-first through hole,

3-the first engine is driven by the first motor,

4-the second motor is driven by the second motor,

5-medium container, 51-body, 52-blocking plate, 53-pull rod, 54-fixing plate, 55-scale.

Detailed Description

Before further detailed description of the embodiments of the present invention, the terms of orientation, such as "upper," "lower," and "bottom," in the embodiments of the present invention are used only for clearly describing the structure of the simulation apparatus for folding a slurry body and a stretching action according to the embodiments of the present invention, and are not intended to limit the scope of the present invention, based on the orientation shown in fig. 1.

In order to make the technical solutions and advantages of the present invention clearer, the following will describe embodiments of the present invention in further detail with reference to the accompanying drawings.

In one aspect, the present invention provides a simulation apparatus for superposition of a magma diapir and a stretching action, which is schematically shown in fig. 1, and comprises: a flask 1, a support table 2, a first engine 3, a second engine 4, and a medium container 5.

The support table 2 comprises a support plate 21 and support legs 22 which are connected, and the support plate 21 is arranged on the support legs 22;

the sand box 1, the first engine 3 and the second engine 4 are arranged on the upper part of the supporting plate 21, the first engine 3 and the second engine 4 are symmetrically arranged on two sides of the sand box 1, and the medium container 5 is arranged on the lower part of the supporting plate 21;

the supporting plate 21 is provided with a first through hole 211, the bottom of the sand box 1 is provided with a second through hole 13, and the second through hole 13 is communicated with the medium container 5 through the first through hole 211.

It should be noted that the first engine 3 and the second engine 4 may be the same type and power.

As can be understood by those skilled in the art, the sand box 1 is filled with multiple layers of sand to simulate strata of different ages, and the thickness of the sand layers can be determined according to the stratum thickness of a target area according to a certain similar proportion; the medium container 5 is filled with a medium, and the medium in the medium container 5 can be introduced into the flask 1 through the first through hole 211 and the second through hole 13 by operating the medium container 5.

The working principle of the simulation device for superposition of magma diapir and stretching provided by the embodiment of the invention is described as follows:

on the premise that the sand box 1 is filled with multiple layers of sand, when the function of the simulated magma diapir is acted, the medium container 5 can be operated, so that the medium in the medium container 5 can move upwards and enter the sand box 1 through the first through hole 211 formed in the supporting plate 21 and the second through hole 13 formed in the bottom of the sand box 1 in sequence, and the simulated sand layer generates diapir deformation;

under the premise that the sand box 1 is filled with multiple layers of sand, when the stretching effect is simulated, the stretching deformation can be generated in the sand layer by starting the first engine 3 and the second engine 4, so that the first engine 3 and the second engine 4 simultaneously stretch the sand box 1.

It should be noted that the function of the slurry diapir and the stretching function are not performed synchronously, so that when the simulation of the superposition of the slurry diapir and the stretching function is performed, the simulation of the slurry diapir and the stretching function can be performed first, and the simulation of the stretching function and the slurry diapir can be performed first.

The simulation apparatus for superposition of a maglev diapir and stretching according to an embodiment of the present invention is further described below:

for the sand box 1, the sand box 1 is used to fill multiple layers of sand to simulate the ground of different ages.

Specifically, the sand box 1 comprises an extension steel plate 11 and a wall plate 12, as shown in fig. 1, one end of the wall plate 12 is connected with the extension steel plate 11, and the plane of the wall plate 12 is perpendicular to the plane of the extension steel plate 11, so that the sand box 1 forms a containing structure with an open upper part and a closed lower part, and the filling of multiple layers of sand can be realized.

Further, the wall plate 12 is provided with a second through hole 13, and the second through hole 13 is communicated with the first through hole 211, so that the medium in the medium container 5 can enter the sand box 1.

For the first and second engines 3, 4, the first and second engines 3, 4 provide power support for simulating a stretching action.

In the structural arrangement, the straight line of the connecting line of the first engine 3 and the second engine 4 is perpendicular to the straight line of the axis of the medium container 5, so as to ensure that the stretching action direction is perpendicular to the action direction of the magma diapir.

It should be noted that the determination of the stretching amount in the stretching action may be determined by the displacement speed and the time of the first engine 3 and the second engine 4.

For the medium container 5, the medium container 5 provides a medium loading for the simulated magma diapir, and the medium loading amount can be determined according to the invasion amount of the magma in the target area.

Specifically, the medium container 5 includes a body 51, a barrier plate 52, and a pull rod 53, the barrier plate 52 being disposed inside the body 51, and the pull rod 53 being connected to the barrier plate 52, as shown in fig. 1.

By pushing the pull rod 53, the blocking plate 52 is moved therewith, whereby the medium carried in the body 51 is pressed up out of the body 51 into the sand box 1.

Further, the medium container 5 further includes a fixing plate 54 disposed inside the body 51 and located at a lower portion of the barrier plate 52, as shown in fig. 1.

The fixing plate 54 is provided with a threaded hole, the outer wall of the pull rod 53 is provided with threads, and the pull rod 53 penetrates through the fixing plate 54 to be connected with the blocking plate 52.

By such arrangement, when the operator rotates the pull rod 53 to push the blocking plate 52 to move, the movement speed and the movement amplitude of the pull rod 53 can be effectively controlled to ensure reasonable diapir speed.

In order to accurately determine the simulated upwelling amount of the magma, the outer wall of the body 51 is provided with scales 55, and the upwelling amount of the magma can be obtained by measuring and calculating the variation of the scales 55.

For the simulation of the magma diapir, in the embodiment of the present invention, the body 51 may be filled with silica gel, the magma is simulated by using the silica gel, and the viscosity range of the silica gel may be 500-.

Therefore, the simulation device for superposition of the magma diapir and the stretching action provided by the embodiment of the invention can realize the simulation test for superposition of the magma diapir and the stretching action by utilizing the sand box 1, the support table 2, the first engine 3, the second engine 4 and the medium container 5, the construction mode is simple and easy, the simulation result can well reproduce the structure of an actual fault, and the corresponding relation between fault structures formed by sequential change between the magma diapir and the stretching action is determined.

In another aspect, the present invention further provides a simulation analysis method for superposition of magma diapir and stretching, which uses the simulation apparatus for superposition of magma diapir and stretching of the first aspect, and the flow chart of the method is shown in fig. 2, and the method includes:

step 201: the sand box 1 is filled with a plurality of layers of sand, the medium filled in the medium container 5 is intruded into the sand box 1 through the first through hole 211 and the second through hole 13, and the first engine 3 and the second engine 4 are started to stretch the sand box 1.

In the step, the superposition simulation process of the function of first separating the magma and then stretching can be realized.

In one possible embodiment, 3 layers of white quartz sand are paved firstly, the thickness of each layer is 2cm, 0.5cm and 0.5cm, the thicknesses of each layer respectively represent Yuangujie, Gushengjie and Zhongshengjie, the similarity ratio is 1:50000, the silica gel in the body 51 is pushed by pushing the pull rod 53, the silica gel invades into the sand box 1 through the first through hole 211 and the second through hole 13, the first invasion of the silica gel is realized, and the invasion height of the silica gel is 1.5 cm; laying 3 layers of white quartz sand with the thicknesses of 2cm, 0.5cm and 0.5cm respectively representing three sections of the sand river street group, two sections of the sand river street group and one section of the sand river street group in a similar proportion of 1:50000, pushing the silica gel in the body 51 by the pushing pull rod 53, and invading the sand box 1 through the first through hole 211 and the second through hole 13 to realize the invasion of the silica gel for the second time, wherein the accumulated height of the invasion of the silica gel is 3.0 cm; and then, after the upward invasion is finished, 3 layers of white quartz sand are continuously paved, the thicknesses of the white quartz sand are respectively 3cm, 0.5cm and 0.5cm, the white quartz sand respectively represent a camping group, a building pottery group and a civilization suppression group, then the first engine 3 and the second engine 4 are started, the stretching is carried out by the stretching rate of 20%, and the stretching of the sand layer is realized.

The elongation is a ratio of a length to be stretched to an original length.

Step 202: and cutting the sand body in the sand box 1 to obtain a first section.

In this step, the first slice is obtained by wetting the sand and then slicing.

In particular, in one possible embodiment, the sand body obtained finally is sectioned at a distance interval of one centimeter in length and sliced in a plane at a distance interval of half a centimeter in thickness.

It is understood that the first slice includes a cross-sectional slice and a planar slice.

Step 203: the sand box 1 is filled with a plurality of layers of sand, the first engine 3 and the second engine 4 are started to stretch the sand box 1, and then the medium filled in the medium container 5 enters the sand box 1 through the first through hole 211 and the second through hole 13.

In this step, the simulation process of folding the magma diapir after the stretching action can be realized.

In one possible embodiment, 2 layers of white quartz sand are laid firstly, the thickness of the white quartz sand is respectively 2cm and 0.5cm, the thickness of the white quartz sand is equivalent to that of the original ancient world and the ancient world, the similar proportion of the white quartz sand is 1:50000, the first engine 3 and the second engine 4 are started, the first stretching is carried out at the stretching rate of 10%, and the stretching of the sand layer is realized; laying 1 layer of white quartz sand with the thickness of 0.5cm, which is equivalent to the middle living boundary, starting the first engine 3 and the second engine 4, and performing primary stretching to realize secondary stretching, so that the cumulative elongation is 15%; then, after the stretching is finished, 4 layers of white quartz sand are continuously paved, the thickness of each layer of white quartz sand is 1.5cm, 0.5cm, 0.5cm and 0.5cm, the thickness of each layer of white quartz sand is equivalent to one section, two sections and three sections of the sand river street group and the Dongying group, the silicon gel in the body 51 is pushed by pushing the pull rod 53 and invades the sand box 1 through the first through hole 211 and the second through hole 13, the invasion of the silicon gel is realized, and the accumulated height of the invasion of the silicon gel is 3.0 cm.

Step 204: and cutting the sand body in the sand box 1 to obtain a second slice.

In this step, the second slice is obtained by wetting the sand and then slicing.

Similar to step 202, in the embodiment of the present invention, the finally obtained sand body may be sectioned at a distance interval of one centimeter in length, and sliced at a distance interval of half centimeter in thickness.

Likewise, the second slice also includes a cross-sectional slice and a planar slice.

Step 205: from the first slice and the second slice, a plurality of exemplary construction deformation patterns are obtained.

And respectively performing three-dimensional scanning on the first slice and the second slice according to the obtained first slice and the second slice to obtain a planar evolution diagram of the first slice as shown in fig. 3, a sectional slice diagram of the first slice as shown in fig. 4, a planar evolution diagram of the second slice as shown in fig. 5 and a sectional slice diagram of the second slice as shown in fig. 6.

And then, establishing a three-dimensional construction model for the scanning result by using Move-3D modeling software to obtain a plurality of typical construction deformation patterns.

As will be appreciated by those skilled in the art, exemplary construction deformation patterns include cross-sectional construction deformation patterns and planar construction deformation patterns.

Step 206: and obtaining a structural deformation pattern of the target area according to the drilling data and the seismic data of the target area.

In this step, a cross-sectional structural deformation pattern of the target zone related to the magma effect may be established based on the drilling data and seismic data of the target zone.

Furthermore, the lithology of the volcanic rock can be identified through the well logging curve and coring data, the matching relation between the spatial distribution range and the plane fracture of the volcanic rock is defined through the lithology of the volcanic rock, and the activity type of the fissure type magma is determined through the interactive relation between the distribution of the volcanic rock and the fracture structure.

Step 207: and comparing the plurality of typical construction deformation patterns with the construction deformation pattern of the target region, and if the construction deformation pattern of the target region is similar to the characteristics of any one or more of the plurality of typical construction deformation patterns, determining the cause type and the typical construction deformation pattern of the construction deformation of the target region.

Specifically, the plurality of typical construction deformation patterns are compared with the construction deformation pattern of the target region one by one, and if the construction deformation pattern of the target region is similar to the characteristics of any one or more of the plurality of typical construction deformation patterns, wherein the characteristics may include the variation of the fault tendency slip distance, so as to determine the cause type and the typical construction deformation pattern of the construction deformation of the target region.

Furthermore, the cutting rate can be utilized and the chronology of volcanic isotope is combined to verify the sequence of the magma diapir and the stretching action.

When the cause of structural deformation of the target area is determined to be superposition of a magma diapir and a stretching effect, a relation model of the hydrocarbon reservoir formation and fracture activity is established by analyzing and counting the correlation factors between key events and fractures of hydrocarbon original rock maturation, hydrocarbon migration and accumulation reservoir formation so as to guide prediction of favorable oil and gas zones.

In an embodiment of the invention, to verify the feasibility of the above method, seismic sections of the N1 well and the B9-1 well in the research area showed that the formation deformation pattern was related to the two-phase invasion plus late-extension effects, as shown in FIGS. 7 and 8. Analysis shows that the first stage of rock pulp invasion generates fractures of F1, F2 and the like, the second stage of rock pulp invasion generates fractures of F3, F4 and the like, and the later stage of extension generates fractures of F5, F6 and the like.

The simulation analysis method for superposition of the magma diapir and the stretching action provided by the embodiment of the invention comprises the steps of filling a plurality of layers of sand into a sand box 1, enabling a medium filled in a medium container 5 to enter the sand box 1 through a first through hole 211 and a second through hole 13, then starting a first engine 3 and a second engine 4 to stretch the sand box 1, cutting a sand body in the sand box 1 to obtain a first slice with the magma diapir and then the stretching action, then filling a plurality of layers of sand into the sand box 1, starting the first engine 3 and the second engine 4 to stretch the sand box, enabling the medium filled in the medium container 5 to enter the sand box 1 through the first through hole 211 and the second through hole 13, cutting the sand body in the sand box 1 to obtain a second slice with the magma diapir after the stretching action, obtaining a plurality of typical structural deformation patterns according to the first slice and the second slice, and obtaining a plurality of typical structural deformation patterns according to drilling data and seismic data of a target area, obtaining a structural deformation pattern of the target area, comparing the plurality of typical structural deformation patterns with the structural deformation pattern of the target area, and if the structural deformation pattern of the target area is similar to the characteristics of any one or more of the plurality of typical structural deformation patterns, determining the cause type and the typical structural deformation pattern of the structural deformation of the target area, providing a technical means for exploring the causes of the existing partial fracture structural patterns and predicting the development patterns thereof, and being helpful for guiding the seismic interpretation of the target area.

The above description is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.