Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Reliability Judgment Method for Actual Time-lapse Seismic Data Processing Differences

A technology of seismic data and time-lapse seismic, applied in seismic signal processing, seismology, geophysical measurement, etc., can solve problems such as interference, inability to correctly reflect changes in reservoir seismic response, inconsistency, etc., and achieve the goal of improving prediction accuracy. Effect

Active Publication Date: 2018-11-27
CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inconsistency of the two actual seismic data acquisitions, the interference of various noises, and the influence of processing technology, etc., make the processing results of the actual seismic data sometimes unable to correctly reflect the changes in seismic response caused by reservoir exploitation.
In the prior art, there is no method for judging whether the processing of actual seismic data can correctly reflect the seismic response caused by reservoir exploitation

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
  • A Reliability Judgment Method for Actual Time-lapse Seismic Data Processing Differences
  • A Reliability Judgment Method for Actual Time-lapse Seismic Data Processing Differences
  • A Reliability Judgment Method for Actual Time-lapse Seismic Data Processing Differences

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0052] The present invention proposes a method for judging the reliability of actual time-lapse seismic data processing differences, comprising the following steps:

[0053] 1) Obtain the amplitude energy difference of seismic records in forward simulation of reservoir model before and after development, the specific process is as follows:

[0054] ① Obtain the porosity and saturation models at two time points before and after development based on the results of reservoir numerical modeling.

[0055] Using the ECLIPSE numerical simulation software, aiming at the target geological model, after numerical calculation, the 3D reservoir grid attribute parameters (porosity, permeability, saturation, pressure, reservoir depth, etc.) Two 3D reservoir grid property parameters of porosity and saturation at a time point.

[0056] ② Convert the two 3D reservoir...

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 relates to a reliability judgment method of actual time shifting seismic data processing difference. The method comprises the following steps: 1) obtaining a seismic record amplitude energy difference of forward modeling of a reservoir model before and after development; 2) obtaining an amplitude energy difference of actual seismic data processing results before and after development; 3) calculating the correlation of the actual seismic data processing results and the different seismic data of the reservoir model; and 4) judging whether the explanation of the actual seismic data processing results to the time shifting earthquake difference is reliable.

Description

technical field [0001] The invention relates to a method for judging the reliability of actual time-lapse seismic data processing differences, belonging to the field of oil and gas seismic exploration and development. Background technique [0002] The difference in time-lapse seismic is mainly due to changes in the seismic response characteristics caused by reservoir saturation and pressure changes. The interpretation of saturation changes can be used for purposes such as determining fluid boundaries, and the interpretation of pressure changes can be used for purposes such as describing connectivity and fault sealing. Usually, the two changes will occur in the same reservoir, so time-lapse seismic interpretation needs to link production data and reservoir model seismic forward modeling to solve the uncertainty of reservoir changes caused by reservoir saturation and pressure changes sexual issues. [0003] The reservoir geological model is established based on the undergrou...

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 Patents(China)
IPC IPC(8): G01V1/28G01V1/30
CPCG01V1/282G01V1/307G01V2210/612G01V2210/6222G01V2210/6224
Inventor 朱振宇刘志鹏何洋洋薛东川李丽霞王小六陈剑军欧阳炀桑淑云张金淼孙文博
Owner CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com