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| 基于储层四性关系分析的致密气层下限研究新方法 |
| A new method for researching on cutoff value of tight gas layer based on the analysis of reservoir four-property relationship |
| 投稿时间：2018-08-22 修订日期：2018-08-22 |
| DOI： |
| 中文关键词: 致密气 四性关系 动态分析 物性下限 气层标准 |
| 英文关键词: tight gas four-property relationship dynamic analysis lower limit of physical property interpretation standard of gas layer |
| 基金项目:“十三五”国家科技重大专项“大型油气田及煤层气开发”(2017ZX05035); 中国石油天然气集团公司工程技术科技统筹项目“自营区块增产综合技术研究与试验”(2017T-004-001)联合资助 井元帅1 陈诗2 |
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| 中文摘要: |
| 苏里格气田储层具有典型低孔-低渗和多层系含气的特点,气层解释下限的确定是致密气藏储层分类和储量评估的基础条件,受限于原始单井单层试气试采资料的缺乏,解释出的气层、含气层不产气或出水,严重制约了气田的有效开发。本文从储层四性关系入手,分析确定储层含气性的主要影响因素,相对高孔渗的粗粒相石英砂岩是形成气层的前提；结合动态资料分析成果,综合判定气层及含水层,同时引入产能预测K曲线,先后确定储层物性下限、电性下限,进而制定气层解释下限标准,有效指导气井生产。 |
| 英文摘要: |
| Sulige gas field has the typical characteristics of low porosity, low permeability and multi-layer gas. Lower limit of gas layer is the basic condition for the classification and reserve assessment of tight gas reservoirs. limited by the lack of the original single well test data, gas or bearing gas reservoir explained produce no gas or even water, which seriously restricted the effective development of gas field. From the four-property relationship of reservoir, the paper analyses the main factors influencing hydrocarbon reservoir, coarse grained quartz sandstone with relatively high porosity and permeability is the precondition for formation of gas layer. and combines with dynamic data to determine gas and water gas, by introducing productivity prediction K curve, determines the lower limit of reservoir physical property, electric lower limit. Furthermore, the lower limit standard of gas layer interpretation is formulated to guide gas well production effectively. |
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