天然气储量计算及其参数确定方法  

NATURAL GAS RESERVES CALCULATION AND ITS PARAMETER DETERMINATION

作　　者：张伦友[1] 张向阳[2] 

机构地区：[1]中油西南油气田分公司勘探开发研究院 [2]中油西南油气田分公司重庆气矿

出　　处：《天然气勘探与开发》2004年第2期20-23,2,共4页Natural Gas Exploration and Development

摘　　要：文章以我国最新的《石油天然气储量计算规范》为依据 ,以四川天然气储量计算为线索 ,详细介绍了容积法储量计算中有效储层下限的确定标准、计算参数的确定方法及资料录取要求。对于有效储层下限应按岩性、物性、含油气性和电性“四性”标准划分 ;对于含气面积应针对不同类型气藏的特点选用不同的确定方法 ;对有效厚度的取值应以气水界面或气层识别为基础 ,综合测试成果 ,以测井“四性”关系划分为依据 ;用测井解释资料确定有效孔隙度时 ,必须用岩性分析资料进行标定 ;对原始含气饱和度、原始天然气体积系数等其他计算参数也提出了相应的要求 ,还对储量评价方法进行了总结。Taking the newest SPECIFICATIONS OF OIL AND GAS RESERVES CALCULATION in our country as basis, and the Sichuan Oil & Gas Reserves Calculation as the clue, the paper has detailedly introduced the determination standard of effective reservoir lower limit, the determination of calculation parameter, and requirements of data recording in the Reserves Calculation by Volumetric Method. For the lower limit of effective reservoir, it should be divided according to the standards of such '4 properties' as those of lithological, physical, oil-gasbearing, and electrical; for the gasbearing area, different determination method should be chosen by countering the characteristics of different type gas pool; for the valuing of effective thickness, the gas-water interface or gas reservoir recognition should be taken as the foundation, and the division of logging '4-properties' relationship as the basis by summarizing the testing fruits; while using the logging interpretation data to determine the effective porosities, it must be calibrated by using the data of lithological analysis; and the corresponding requirements are also put forward to other calculation parameters such as original gas-bearing saturation, original natural gas volumetric coefficient etc. the paper has also summarized the method of reserves evaluation.

关 键 词：天然气 储量 计算方法 容积法 地层压力 碳酸盐岩 储层 含气饱和度 

分 类 号：TE155[石油与天然气工程—油气勘探]