A method to characterize the spatial distribution of volcanic rocks based on amplitude-variance volume seismic attributes
A technology of spatial distribution and seismic attributes, applied in the field of petroleum exploration and development, can solve problems such as systemicity that cannot reflect the distribution law of volcanic rocks, and achieve the effect of weakening high continuous reflection, easy interpretation, and reliable picking.
Inactive Publication Date: 2016-06-15
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Based on the research status and progress at home and abroad, the description of igneous rocks is more reflected in the description of two-dimensional sections and planes, especially the separate description and description of the volcanic rocks’ overflow facies and volcanic channel subfacies. When the overflow facies and volcanic channels are the same, the three-dimensional space-time distribution is described, which cannot reflect the systematic distribution of volcanic rocks
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] The present invention will be further described below in conjunction with drawings and embodiments.
[0035] The technical scheme that the present invention adopts for solving its technical problem is: provide a kind of method based on amplitude-variance body seismic attribute to describe the spatial distribution of volcanic rock, refer to figure 1 The flowchart shown includes the following steps:
[0036] (1) Acquire the original 3D seismic data in the study area. The format of the original 3D seismic data is SEG-Y; perform post-stack migration processing on the original 3D seismic data to obtain 3D seismic data, and load the data into 3D visualization The software displays the effect as figure 2 The seismic profile shown, image 3 The time slice plot shown and Figure 4 The spatial distribution of the volcanic overflow phase is shown in the effect diagram;
[0037] (2) Set the amplitude grading standard, and define the minimum amplitude value corresponding to the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention provides a method for describing the spatial distribution of volcanic rocks based on the seismic attributes of the amplitude-variance body, picking up strong-amplitude three-dimensional seismic data to obtain volcanic overflow facies data, and simultaneously picking up volcanic channel facies data according to the variance body data, and combining the two to obtain Complete the characterization of the fusion of overflow phase and channel phase. The present invention integrates overflow facies and volcanic channels to realize three-dimensional display, intuitively and vividly depicts the spatial distribution of volcanic rocks; overflow facies and volcanic channel facies are the two most important subfacies of volcanic rocks, and the fusion of the two It shows that it is helpful for the prediction research of volcanic rock reservoirs, and can be widely used in petroleum basins related to volcanic rocks, especially for describing the spatial distribution characteristics of volcanic rocks and analyzing the impact of volcanic rocks on surrounding reservoirs and the impact of volcanic activities on oil and gas formation. hidden control.
Description
technical field [0001] The invention relates to a method for describing the spatial distribution of volcanic rocks based on seismic attributes of amplitude-variance bodies, and belongs to the field of petroleum exploration and development. Background technique [0002] For petroleum basins where volcanic rocks are developed, volcanic rocks have an important influence on the transformation of reservoirs and accumulation. However, due to the complex structure and severe lateral changes of volcanic rocks, different types of volcanic rocks develop in different structural parts and have different seismic reflection characteristics. How to effectively identify the spatial distribution characteristics of two diametrically opposed seismic reflection characteristics of weak amplitude has always been a difficult problem. Aiming at related technical problems, scholars at home and abroad have proposed many solutions. Andrew Miles et al. (2010) identified the distribution of leafy volc...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30
Inventor 朱红涛周心怀徐长贵杨香华王清斌杨波刘依梦刘浩冉魏刚
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)