摘要
苏里格东部气田属于低孔、低渗～致密且储层非均质性强的砂岩岩性气藏。气田现有直井产能低、整个区块开发效率差。采用水平井开发是提高低渗气藏产能的有效方法,但水平井在该区的适应性问题尚缺乏系统、深入的研究。通过研究该地区砂体的连续性及储层特征,结合气藏工程分析,对水平井开发适应性的静、动态条件进行分析与评价,筛选出该区最适于水平井开发的区域。在其中布置水平井,验证其动态开发效果,得到的产气量达直井的3倍。
Eastern Sulige gas field is a lithologic reservoir with low porosity,ultra low permeability and unevenly distributed sand body.The existing vertical wells show low productivity and low efficiency.Horizontal wells could serve as an effective method to improve gas productivity.However,the adaptability of horizontal wells in this area shorts of systematic study.Sand body continuity and planar distribution of Eastern Sulige gas field are studied.The static and dynamic parameters of horizontal well adaptability have been obtained based on studies on formation characteristics and dynamic analysis.Then,the most adaptable regions for horizontal well development have been selected.Results of this work could show some valuable evidences for horizontal well adaptability in other gas fields with similar geological conditions.
出处
《内蒙古石油化工》
CAS
2012年第20期125-128,共4页
Inner Mongolia Petrochemical Industry
关键词
致密砂岩
气藏
水平井适应性
开发效果
Tight gas field
horizontal well adaptability
Development effect comparison
