洞穴型储层的有效性评价方法研究
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摘要
由于地下溶洞发育及分布的非均质性极强,古洞穴的充填程度及流体性质的复杂多变,使得洞穴型储层有效性评价技术成为测井评价的一个主要技术难点。而正确评价洞穴的充填物和充填情况是判断其有效性的关键。通过分析不同充填程度、不同充填物的洞穴在常规测井曲线、电成像和阵列声波图像上的响应特征,提出了洞穴型碳酸盐岩储层的有效性评价方法,并结合钻井、录井、试井及地震等方面的识别标志,对储层类型和级别进行了划分。
As undrground cave development and distribution has strong heterogeneity,complexity and variety of the filling degree and fluid property of ancient caves make the validity evaluation technology for cave reservoirs difficult in logging evaluation.The fillings and filling condition of caves are the key of judging validity.Through analyzing the response characteristics of differ filling degree and differ fillings of caves in conventional electrical imaging logging and array acoustic logging image,the evaluation method of validity for cave carbonate reservoirs is proposed.The reservoir types and grade are divided with combination of drilling,well logging,well testing and seismic data.
As undrground cave development and distribution has strong heterogeneity,complexity and variety of the filling degree and fluid property of ancient caves make the validity evaluation technology for cave reservoirs difficult in logging evaluation.The fillings and filling condition of caves are the key of judging validity.Through analyzing the response characteristics of differ filling degree and differ fillings of caves in conventional electrical imaging logging and array acoustic logging image,the evaluation method of validity for cave carbonate reservoirs is proposed.The reservoir types and grade are divided with combination of drilling,well logging,well testing and seismic data.
引文
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[2]唐文榜、刘来祥、樊佳芳,溶洞充填物判识的频率差异分析技术[J],石油与天然气地质,2002,23(1):41～43.
[3]李宗杰、王勤聪,塔河油田奥陶系古岩溶洞穴识别及预测[J],新疆地质,2003,21(2):181～184.
[4]肖玉茹、王敦则、沈杉平,新疆塔里木盆地塔河油田奥陶系古洞穴型碳酸盐岩储层特征及其受控因素[J],现代地质,2003,17(1):92～97.
[5]钟广法、刘瑞林、柳建华,塔北隆起奥陶系古岩溶的电成像测井识别[J],天然气工业,2004,(6):57～60.
[6]雍世和、张超谟,测井数据处理与综合解释[M],山东东营:石油大学出版社,1996.
[7]唐晓明、郑传汉,定量测井声学[M],北京:石油工业出版社,2004.
[8]高坤、陶果、王兵,利用斯通利波计算地层渗透率的方法及应用[J],测井技术,2005,(6):507～510.
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