阿姆河右岸东部地区裂缝测井解释方法  

Log Interpretation Method about Fracture in East Area of Amu Darya Right Bank

作　　者：齐宝权 罗利 张树东 罗宁 任兴国 刘航 QI Baoquan;LUO Li;ZHANG Shudong;LUO Ning;REN Xingguo;LIU Hang(Southwest Branch,China Petroleum Logging CO,LTD.,Chongqing 400021,China;Geological Exploration Development Research Institute,Chuanqing Drilling Engineering CO.LTD.,CNPC,Chengdu,Sichuan 610051,China)

机构地区：[1]中国石油集团测井有限公司西南分公司,重庆400021 [2]中国石油集团川庆钻探工程公司地质勘探开发研究院,四川成都610051

出　　处：《测井技术》2018年第3期287-293,共7页Well Logging Technology

摘　　要：阿姆河右岸东部地区卡洛夫-牛津阶裂缝发育程度较中部地区高,是东部区块储层高产的主控因素。由于裂缝类型多、成因复杂、测井识别难度大等原因,一直制约测井解释精度提高。根据多口井的岩心和铸体薄片观察,形成综合成因、期次、充填性、与溶蚀的关系等测井分类方法,建立裂缝类型测井识别方法。用电成像测井对各种裂缝进行分类识别,用常规测井资料对不同产状裂缝进行判别,用声波与中子交会方法对有效裂缝进行识别。利用电成像测井解释的裂缝张开度、阵列声波提取的斯通利波能量差和远探测声波处理的反射系数以及深浅双侧向差异等参数,建立有效裂缝评价的4个标准,形成裂缝有效性评价方法。应用实例表明,该方法对阿姆河东部地区裂缝性储层的评价具有较高应用价值,提高了储层解释的精度和可信度。The degree of fracture development in Calov Oxford order in eastern region of Amu Darya is higher than that in the middle region,which is the main controlling factor for high yield of reservoir in eastern region.However,due to so many types and complicated causes of fractures,it is difficult to identify fractures by logging,and the accuracy of logging interpretation is not very high.According to cores and cast slice observation of several wells,a logging classification method for fractures in consideration of the relationship of origin,period,filling,and dissolution was established.This method depends on imaging logging to classify the type of fractures,using conventional logging to evaluate the occurrence of fracture and using AC-CNL crossplot to evaluate the effectiveness of fractures.In addition,four criteria for effective fracture evaluation were established based on parameters such as apertures from image logging,Stoneley energy difference from array acoustic logging,reflection coefficient from Remote Exploration Acoustic and the difference between deep and shallow lateral resistivity.The application of this method shows that it has great value for the evaluation of fractured reservoirs in the eastern Amu Darya and improves the accuracy and credibility of reservoir interpretation.

关 键 词：测井解释 裂缝有效性 电成像测井 斯通利波 远探测声波 反射系数 阿姆河东部 

分 类 号：P631.84[天文地球—地质矿产勘探]