测井技术2017，Vol.41Issue(1)：71-76,6.DOI:10.16489/j.issn.1004-1338.2017.01.012
莺歌盆地高温高压储层含水饱和度评价
Evaluation Methods for Water Saturation of High Temperature and Pressure Reservoir in Yinggehai Basin
杨毅 1胡向阳 1张海荣 1杨冬 1刘土亮1
作者信息
- 1. 中海石油(中国)有限公司湛江分公司,广东湛江524000
- 折叠
摘要
Abstract
The Neogene H1 formation group in the field D is located at the medium-deep to deep intervals of Yinggehai basin and categorized as the high temperature and pressure (HTHP) formation.The resistivity logs are highly distorted by the invaded high-density mud in full-cored sections,which leads to relatively big errors when calculating water saturation by using conventional electrical model.H1 formation group has been reworked by multi-phase diagenesis,which results in various types of micro pore space with complex structures.The computational accuracy of the interpretation model is considerably impacted by such a high reservoir heterogeneity.To solve this problem,the reservoir is categorized according to the petrophysical facies based on data from wireline log,cores and tests.Different standards and interpretation methods are applied for different petrophysical facies where J function utilizes mercury intrusion capillary pressure to establish high-precision non-electrical saturation model.Field applications indicate that this petrophysical facies categorization technique provides an improved approach for the water saturation calculation in the HTHP formation where resistivity logs are distorted.关键词
测井解释/岩石物理相/高温高压/非电法/毛细管压力/含水饱和度Key words
log interpretation/petrophysical facies/high temperature and pressure(HTHP)/non-electrical/capillary pressure/water saturation分类
天文与地球科学引用本文复制引用
杨毅,胡向阳,张海荣,杨冬,刘土亮..莺歌盆地高温高压储层含水饱和度评价[J].测井技术,2017,41(1):71-76,6.
