Natural gas hydrate seismic data processing method and device

A technology of seismic data and processing method, applied in the field of geophysical exploration, to achieve the effect of strong adaptability, solving adaptability problems and improving accuracy

Inactive Publication Date: 2018-12-28
BC P INC CHINA NAT PETROLEUM CORP +2
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a natural gas hydrate seismic data processing method and device, which solves the adaptability of the rock physical model of the same hydrate reservoir in different exploration areas, and improves the accuracy of natural gas hydrate seismic data processing

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Natural gas hydrate seismic data processing method and device
  • Natural gas hydrate seismic data processing method and device
  • Natural gas hydrate seismic data processing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] 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.

[0064] Gas hydrate is an ice-like crystalline substance distributed in deep sea sediments or permafrost in land areas, formed by natural gas and water under high pressure and low temperature conditions. Because its appearance is like ice and it can burn when exposed to fire, it is also called "combustible ice" or "solid gas" and "air ice"...

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

No PUM Login to view more

Abstract

The invention provides a natural gas hydrate seismic data processing method and device. The method comprises the following steps: according to log data of a hydrate exploration area, performing fitting on sample data by utilizing a hydrate reservoir rock physical modeling method, and acquiring a target modeling method; constructing a wedge model of a hydrate by utilizing the target modeling method, performing forward modeling on seismic data according to the wedge model, and obtaining a synthetic seismic record; according to the synthetic seismic record, constructing free gas evaluation standards and saturation thickness evaluation standards of a natural gas hydrate; acquiring the actual seismic data of a target area in the hydrate exploration area, and acquiring the actual amplitude spectrum according to the actual seismic data; and according to the actual amplitude spectrum, the free gas evaluation standard and the saturation thickness evaluation standard, determining hydrate featureinformation of the target area. By utilizing each embodiment in the invention, the adaptability problem of the same hydrate reservoir rock physical model in different exploration areas is solved, andnatural gas hydrate seismic data processing accuracy is improved.

Description

technical field [0001] The application belongs to the technical field of geophysical exploration, and in particular relates to a method and device for processing seismic data of natural gas hydrate. Background technique [0002] Conventional gas hydrate seismic exploration uses bottom simulating reflector (BSR, Bottom Simulating Reflector) as a sign of hydrate identification, but using BSR alone cannot obtain information such as relative hydrate saturation. In the prior art, when interpreting heterogeneous hydrate reservoirs with complex distribution, there are great uncertainties in the description of physical characteristics such as the thickness, saturation, and existence of free gas layers of natural gas hydrate reservoirs. Therefore, quantitative or semi-quantitative description of physical properties of hydrate reservoirs is an essential technology in the interpretation of gas hydrate seismic data. [0003] At present, in the processing of gas hydrate seismic data, th...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30G01V1/36
CPCG01V1/306G01V1/36G01V2210/52G01V2210/624
Inventor 张峰范文豪李向阳钱忠平宋建军陈海峰
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap