Compressing seismic wavefields in three-dimensional reverse time migration

A technology for decompressing and seismic data, applied in seismology, seismic signal processing, geophysical measurement, etc., can solve the problem of consuming large computing resources and achieve the effect of improving imaging results

Active Publication Date: 2020-01-31
SAUDI ARABIAN OIL CO
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach consumes significant computational resources (e.g., processor cycles, data bus bandwidth, computational memory (e.g., rando

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
  • Compressing seismic wavefields in three-dimensional reverse time migration
  • Compressing seismic wavefields in three-dimensional reverse time migration
  • Compressing seismic wavefields in three-dimensional reverse time migration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The following detailed description describes compressed seismic data and is presented to enable one skilled in the art to make and use the disclosed subject matter in the context of one or more specific implementations. Various modifications, changes, and substitutions may be made to the disclosed implementations and will be apparent to those of ordinary skill in the art, and the general principles defined may be applied to other implementations and applications without departing from the scope of the present disclosure. . In some cases, one or more technical details that are not necessary to gain an understanding of the described subject matter and are within the purview of one of ordinary skill in the art may be omitted so as not to obscure one or more described implementations. The disclosure is not intended to be limited to the implementations described or shown, but is to be accorded the widest scope consistent with the principles and features described.

[0019] ...

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

A three-dimensional (3D) seismic data set is divided into a plurality of 3D source wavefield subsets, each 3D source wavefield subset is stored in an array element of an array. For each array element,the associated 3D source wavefield is decomposed into a smaller data unit; data boundaries of the smaller data units are randomly shifted; a folding operation and a sample operator is applied to thesmaller data units to keep the smaller data units from overlapping; the folded smaller data units are smoothed to generate smoothed data; a quantization operation is performed on the smoothed data toproduce quantized data; and the quantized data is compression encoded to generate compressed data. The compressed data associated with each array element is decompressed to generate a 3D seismic output image.

Description

[0001] priority statement [0002] This application claims priority to US Patent Application No. 62 / 484,101, filed April 11, 2017, the entire contents of which are hereby incorporated by reference. Background technique [0003] Seismic imaging is a tool that bounces sound waves off subsurface structures, such as rocks and other sedimentary layers or cavities, to reveal possible oil-bearing formations. Reverse time migration (RTM) is a seismic imaging method that provides accurate imaging in and below regions of complex structures and velocities. In RTM, seismic images are generated by zero-delay cross-correlation of source and receiver wavefields. The source wavefield is computed by forward propagation, while the receiver wavefield is computed by backward propagation. Due to the opposite directions of propagation relative to the source and receiver wavefields, the RTM first computes data for the entire source wavefield and stores this data in a data storage location such as ...

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
IPC IPC(8): G01V1/28G06T9/00
CPCG01V1/28G06T9/00G01V1/345G06T5/002H04N19/625G01V2210/512H04N19/124H04N19/42G06T5/10H04N19/91G06T9/007
Inventor 孙兵兵刘红伟文森特·艾蒂安嵇绪
Owner SAUDI ARABIAN OIL CO
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