摘要
碳酸盐岩油气藏所蕴藏的油气储量和产量均超过油气总产量的一半,因此对其开展储量参数评价研究具有较强的现实意义。由于碳酸盐岩储层具有岩性复杂、储集空间类型多样、次生孔隙变化明显和非均质性强等特征,导致在储量计算中难以评价孔隙度和渗透率。以某海上碳酸盐岩气田为例,基于常规测井资料,从岩性识别、储层孔渗参数计算和裂缝识别等方面对双重介质储层进行了测井综合研究。结果表明:常规测井资料能有效识别碳酸盐岩储层的岩性和裂缝,能定量计算双重介质储层原生(基质)孔隙、溶蚀收缩(次生)孔隙、裂缝的孔隙度和渗透率,并且能建立裂缝定量判别标准。该项研究可在缺少钻井取心和成像测井等资料的情况下为双重介质储层研究提供借鉴。
Both the oil and gas reserves and production contained in carbonate oil and gas reservoir exceed half of the total oil and gas production, so it is significant to carry out study on reserve parameter evaluation of carbonate oil and gas reservoir. Carbonate reservoir is characterized by complex lithologies, various types of reservoir space, markedly changed secondary pores and strong heterogeneity, which makes the porosity and permeability evaluation difficult in the reserve calculation. Taking a marine carbonate gas field as an example, based on conventional log data, this paper conducted integrated studies on dual-medium reservoirs from the aspects of lithology identification, calculation of porosity and permeability and fracture identification. The result shows that conventional log data can be use to identify the lithologies and fractures of carbonate reservoir effectively, can be applied to quantitatively calculate the porosity and permeability of primary pores, dissolved shrinkage pores and fractures of dual-medium reservoir, and can be used to establish the criterion for quantitative fracture identification. This study can provide reference for the study of dual- medium reservoir when there is lack of core and image logging data.
出处
《岩性油气藏》
CSCD
2013年第6期98-102,111,共6页
Lithologic Reservoirs
关键词
双重介质
储量参数
常规测井
岩性识别
裂缝识别
dual-medium
reserve parameters
conventional log
lithology identification
fracture identification
作者简介
王庆如（1959-）,男,高级工程师,主要从事油气储量管理及研究工作.地址：（100010）北京市东城区朝阳门北大街25号海油大厦1103B室.E-mail：wangqr@cnooc.com.cn
