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

A Method of Searching for Fractured-Vuggy Reservoirs Near Wells Using Multi-trace Accumulated Amplitude Difference Decomposition Spectrum

A technology of seismic trace and seismic interpretation, applied in seismology for logging records, etc., which can solve the problem of not being able to simultaneously obtain the vertical and lateral changes of fracture-cavity reservoirs

Active Publication Date: 2017-10-17
PETROCHINA CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a method for finding fractured-vuggy reservoirs beside wells through multi-trace accumulation amplitude difference decomposition spectrum, so as to solve the problem that fracture-vuggy reservoirs cannot be obtained simultaneously in the fracture-vuggy reservoir prediction method in the prior art The problem of vertical and horizontal changes

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 Method of Searching for Fractured-Vuggy Reservoirs Near Wells Using Multi-trace Accumulated Amplitude Difference Decomposition Spectrum
  • A Method of Searching for Fractured-Vuggy Reservoirs Near Wells Using Multi-trace Accumulated Amplitude Difference Decomposition Spectrum
  • A Method of Searching for Fractured-Vuggy Reservoirs Near Wells Using Multi-trace Accumulated Amplitude Difference Decomposition Spectrum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: as figure 1 , figure 2 , image 3 , Figure 4a , Figure 4b , Figure 5 , Figure 6a , Figure 6b as shown,

[0044] The method for finding fracture-cavity reservoirs beside wells by accumulating amplitude differential spectrum with multiple seismic traces includes the following steps:

[0045] a. Perform data processing and data interpretation on the original seismic data to obtain the three-dimensional data volume after stacking and migration processing and interpret the picked horizon data;

[0046] The basic processing and interpretation of raw seismic data adopts existing methods. The migration process can be pre-stack depth migration or post-stack time or depth migration. Horizontal picking is performed on the interpretation workstation. In this way, the stacked and migrated three-dimensional data volume and the interpreted horizon data are obtained.

[0047] b. Taking the layer data picked up by seismic interpretation as the starting point...

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 method for finding fractured-vuggy reservoirs beside wells by accumulating amplitude difference decomposition spectra with multiple seismic traces belongs to the technical field of underground reservoir exploration by seismic technology. Perform data processing and data interpretation on the original seismic data to obtain the three-dimensional data volume after stacking and migration processing and the horizon data picked up by interpretation; starting from the horizon data picked up by seismic interpretation, obtain the target layer data of adjacent seismic traces beside the well ; apply the dynamic waveform matching algorithm to calculate the accumulated amplitude difference between the starting point and the end point of the horizon data picked up by seismic interpretation, and obtain the accumulated amplitude difference curve; the multi-scale decomposition of the accumulated amplitude difference of the dynamic waveform matching is carried out, and a The dynamic accumulation amplitude difference curve is changed into multiple curves; these multi-resolution decomposition curves are converted into time and depth, and analyzed and compared with the reservoirs divided by logging data; research and investigation of seismic attributes with different resolutions and logging data storage The thickness corresponding relationship of stratum evaluation and division can be determined, and then the attribute of seismic lateral tracing can be determined.

Description

technical field [0001] The invention relates to the technical field of exploration of underground reservoirs by using seismic technology, in particular to a method for finding fracture-vug reservoirs beside wells by accumulating amplitude differential spectrum with multiple seismic traces. Background technique [0002] The basic goal of petroleum seismic exploration is to understand the subsurface structure and corresponding formation properties based on the seismic reflection waves excited by artificial seismic sources. The original seismic data are processed through a series of filtering, stacking, and migration to form the corresponding self-excited and self-collecting reflected wave recording data volume. On this basis, combined with the regional geological background, horizon tracing, fault interpretation and reservoir prediction are carried out on the profile drawn according to the data volume, so as to find underground structures and traps that are favorable for oil a...

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): G01V1/40
Inventor 肖承文刘瑞林谢会文张承森马洪敏李进福朱小露吴兴能范文同刘妮郭洪波
Owner PETROCHINA 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