测井技术2017，Vol.41Issue(5)：501-505,5.DOI:10.16489/j.issn.1004-1338.2017.05.001
页岩气藏水平测井裂缝识别及声学成像研究
Acoustic Characterization and Imaging of Shale Gas Fractures in Horizontal Wells: Field Case Study in the Sichuan Basin of Southwest China
唐晓明 1李盛清 1许松 1苏远大 1庄春喜1
作者信息
- 1. 中国石油大学(华东)地球科学与技术学院,山东青岛266580
- 折叠
摘要
Abstract
Fracture identification and characterization are of fundamental importance to the exploration and production of unconventional shale gas reservoirs.This paper presents a case study using borehole acoustic technology for fracture characterization and imaging in a horizontal well drilled through shale gas reservoir.The technology includes shear-wave anisotropy measurement and reflection imaging using the four-component (4C) cross-dipole logging data along the well.The anisotropy measurement obtains,respectively,the horizontally and vertically polarized SH and SV waves and their velocities from the 4C data.Reflection imaging using the SH and SV waves and their velocities determines the orientation of a formation reflector around the well.Application of the technology to a high-production shale gas reservoir in the Sichuan basin of Southwest China has successfully delineated vertical fracture sets crossing the horizontal well,suggesting that the presence of the fractures is related to the high gas production of the well.关键词
声波远探测测井/页岩气储层/水平井/偶极横波/裂缝识别/各向异性Key words
acoustic reflection logging/shale gas reservoir/horizontal well/dipole shearwave/fracture identification/anisotropy分类
天文与地球科学引用本文复制引用
唐晓明,李盛清,许松,苏远大,庄春喜..页岩气藏水平测井裂缝识别及声学成像研究[J].测井技术,2017,41(5):501-505,5.
