Title:
WHILE-DRILLING VSP WELL-DRIVEN SEISMIC IMAGING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/067458
Kind Code:
A1
Abstract:
A while-drilling VSP well-driven seismic imaging method, comprising: acquiring a seismic data processing result and logging data in a processing work area range corresponding to a target well; performing optimized adjustment on the seismic data processing result and the logging data to obtain an anisotropic parameter entity subjected to pre-stack depth migration; updating a seismic velocity of the target well by taking a VSP velocity as a constraint; on the basis of the anisotropic parameter entity, performing iterative optimization on a seismic velocity field subjected to VSP-driven correction to obtain an iteratively optimized seismic velocity field and an anisotropic parameter field; migrating a pre-stack depth migration entity to obtain a migration result; performing post-stack frequency enhancement modification on the migration result to obtain a migration result subjected to the post-stack frequency enhancement modification; and determining a maximum probability imaging position of the target well at a target reservoir according to the migration result subjected to the post-stack frequency enhancement modification, so that while-drilling VSP well-driven seismic imaging can be implemented, and the timeliness is high. Further provided are a while-drilling VSP well-driven seismic imaging apparatus, a computer device, a computer readable storage medium, and a computer program product.
Inventors:
SUN JIAQING (CN)
KOU LONGJIANG (CN)
WANG JING (CN)
LIU JINTAO (CN)
WANG XIAOWEI (CN)
SU QIN (CN)
WANG XIAO (CN)
XU XINGRONG (CN)
JIN BAOZHONG (CN)
LING YUE (CN)
KOU LONGJIANG (CN)
WANG JING (CN)
LIU JINTAO (CN)
WANG XIAOWEI (CN)
SU QIN (CN)
WANG XIAO (CN)
XU XINGRONG (CN)
JIN BAOZHONG (CN)
LING YUE (CN)
Application Number:
PCT/CN2023/121000
Publication Date:
April 04, 2024
Filing Date:
September 25, 2023
Export Citation:
Assignee:
PETROCHINA CO LTD (CN)
International Classes:
G01V1/30; G01V1/28
Foreign References:
| CN116068625A | 2023-05-05 | |||
| CN111624662A | 2020-09-04 | |||
| CN101630014A | 2010-01-20 | |||
| CN111060967A | 2020-04-24 | |||
| AU2016202792A1 | 2017-11-16 | |||
| US20100133010A1 | 2010-06-03 | |||
| US20210208295A1 | 2021-07-08 | |||
| US6785612B1 | 2004-08-31 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
Download PDF: