摘要
目前针对超低渗油藏单井产能的地质因素分析极少。文章通过姬塬地区长4+5超低渗油层组为研究目的层,以岩芯分析、测井解释数据统计、粒度分析资料、储层宏微观表征等技术手段,对影响目的层位的主要地质因素进行分析。结果表明,研究区目的层单井产能受沉积相类型、储层类型、储层微观参数与有效厚度等多种地质因素控制。具体表现在水下分流河道、前缘席状砂等以砂岩含量居多的沉积微相对应层位单井产能较高;储层内孔隙的空间组合类型、孔渗参数大小均影响储层的渗透与流通程度,从而影响其单井产能。总结不同地质因素对姬塬地区长4+5超低渗油藏的控制作用,可以为研究区今后的布井开发,或进一步的方案调整提供有利的依据。
At present, there are few geological factors analysis of single well productivity of ultra-low permeability reservoir. In this paper, the main geological factors affecting the target horizon are analyzed by means of core analysis, logging interpretation data statistics, particle size analysis data, macro and micro characterization of the reservoir by taking the chang 4+5 ultra-low permeability reservoir group in Jiyuan area as the research target. The results show that the single-well productivity of the target zone is controlled by a variety of geological factors such as sedimentary facies type, reservoir type, reservoir microscopic parameters and effective thickness. Specifically, the sedimentary microfacies of underwater distributary channel and frontal-sheet sand, which are mostly composed of sandstones, correspond to high single well productivity. The type of pore space combination and the size of pore permeability parameters in the reservoir affect the permeability and circulation of the reservoir, thus affecting its single-well productivity. The control effect of different geological factors on the long 4+5 ultra-low permeability reservoir in Jiyuan area is summarized, which can provide a favorable basis for the future development of the study area and further adjustment of the scheme.
作者
汪鑫
柳成志
WANG Xin;LIU Cheng-zhi(Northeast Petroleum University School of EarthSciences , Daqing 163318)
出处
《矿产勘查》
2019年第3期584-592,共9页
Mineral Exploration
关键词
超低渗油藏
单井产能
沉积微相
储层物性
姬塬地区
ultra-low permeability reservoir
single well production capacity
sedimentary microfacies
the reservoir physical property
Jiyuan area
作者简介
第一作者:汪鑫,男,1993 年生,在该硕士,矿物学岩石学,矿床学专业;E-mail:756349075@ qq.com。
