Method and Device for Determining the Form of Underground River Collapse System
A system, the technology of the underground river, applied in the field of oil and gas exploration, can solve the problem of inability to accurately and comprehensively describe the collapse system of the underground river
Active Publication Date: 2020-07-10
PETROCHINA CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The embodiment of the present application provides a form of underground river collapse system to solve the technical problem that the existing methods cannot accurately and comprehensively describe the underground river collapse system, and to achieve the characterization characteristics that can synthesize multiple seismic attribute data volumes, from The boundary of the underground river collapse system, the change trend of the underground river collapse system, etc., and the technical effect of accurately determining the shape of the underground river collapse system
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
[0046] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0047] Considering the existing technology, it is often impossible to accurately and comprehensively describe the underground river collapse system due to the lack of specific analysis of the formation mechanism of the underground river collapse system and the various morphological characteristics of the underground river collapse system. ...
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 embodiment of the application provides a determination method and apparatus of the morphology of an underground river collapse system. The method includes: obtaining geological background data andseismic data of a target region; determining a root mean square amplitude attribute data volume and a variance attribute data volume according to the geological background data and the seismic data,wherein the root mean square amplitude attribute data volume is used for representing the changing tendency of the underground river collapse system, and the variance attribute data volume is used forrepresenting the boundary of the underground river collapse system; and establishing a fusion body representing the morphology of the underground river collapse system according to the root mean square amplitude attribute data volume and the variance attribute data volume. According to the scheme, representation characteristics of different seismic attribute data volumes are considered, the rootmean square amplitude attribute data volume and the variance attribute data volume are firstly determined, and then the specific morphology of the underground river collapse system is represented withthe combination of the two seismic attribute data volumes so that the technical problem of failure of accurate and comprehensive representation of the underground river collapse system in the conventional method is solved.
Description
technical field [0001] The present application relates to the technical field of oil and gas exploration, in particular to a method and device for determining the shape of an underground river collapse system. Background technique [0002] In formations containing oil and gas reservoirs, such as carbonate rock formations containing oil and gas reservoirs, the formation usually forms an underground river cave system during the development of surface karst, and the above-mentioned underground river cave system will occur as the burial depth increases. collapsed, forming an underground river collapse system. Among them, the above-mentioned underground river collapse system will become a space for oil and gas storage in the formation, which will affect the transportation and storage of oil and gas. [0003] At present, due to the complexity of the formation mechanism of the underground river collapse system and relatively few studies on the system, there is no effective and sys...
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
CPCG01V1/307
Inventor 宁超众李勇姚子修王伟伟何军
Owner PETROCHINA CO LTD