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潜山花岗岩裂缝储层测井取样创新与实践 被引量:1

Innovation and practice of logging sampling in buried-hill fractured ganite reservoirs
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摘要 测井作业阶段,应用电缆地层测试仪进行取样作业,可以部分替代DST中途测试。但是潜山花岗岩裂缝型储层岩性复杂,裂缝非常规发育,当存在高角度裂缝、诱导缝、微裂缝发育时对于双封隔器的有效坐封极为不利。为了选取合适的取样点,必须剔除掉这些不利因素,为此提出了基于常规曲线、电成像、阵列声波等资料的多因子裂缝有效性评价方法。应用此方法优选出取样深度点,并应用双封隔器探针进行取样作业,在渤中19-6区块 A井中成功取得地层流体样品,对本区域潜山花岗岩储层评价提供了有利的技术支持,获得了较好的应用效果。 In the stage of logging operation,DST can be partially replaced with the wireline tester for sampling operation.In buried hill fractured ganite reservoirs,however,lithologies are complex and fractures are quite developed.And,it is extremely adverse to the effective setting of twin packer if high-angle fractures,induced fractures and micro-fractures are developed.In order to select suitable sampling points,these adverse factors shall be eliminated.In this paper,a multi-factor fracture effectiveness evaluation method based on conventional log,electric imaging and array sonic data was proposed.In Well A of BZ19-6 Block,formation fluid is successfully sampled by adopting the twin packer probe for sampling after making use of this new evaluation method to select the sampling depth points.This method provides the technical support for the evaluation of buried-hill ganite reservoirs in this area and its application results are satisfactory.
作者 张国强 谭忠健 信召玲 苏鹤成 ZHANG Guoqiang;TAN Zhongjian;XIN Zhaoling;SU Hecheng(Engineering Technology Operation Center,Tianjin Branch of China National Offshore Oil Co.,Ltd.,Tianjin 300459,China;Bohai Petroleum Research Institute,Tianjin Branch of China National Offshore Oil Co.,Ltd.,Tianjin 300459,China;Engineering Technology Company of CNOOC Energy Technology&Services Limited,Tianjin 300459,China)
出处 《石油钻采工艺》 CAS CSCD 北大核心 2018年第A01期80-83,共4页 Oil Drilling & Production Technology
关键词 潜山 裂缝性储层 裂缝有效性评价 双封隔器 储层识别 测井取样 buried hill fractured reservoir evaluation on fracture effectiveness twin packer reservoir identification logging sampling
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