基于断层控制下的孙岗区块油气显示层解释评价方法探讨  

Discussion on interpretation and evaluation method of oil and gas display layers in Sungang block based on fault control

作　　者：翟立国 ZHAI Liguo(State Key Laboratory Continental Dynamics,Department of Geology,Northwest University,Xi'an,Shaanxi 710069,China)

机构地区：[1]西北大学地质学系/大陆动力学国家重点实验室,陕西西安710069

出　　处：《石油地质与工程》2020年第2期49-53,共5页Petroleum Geology and Engineering

摘　　要：泌阳凹陷孙岗区块石油地质条件十分复杂,油气显示层解释评价难度大,传统方法解释符合率低。为此,在分析孙岗区块圈闭、油层分布、储层特征、流体性质的基础上,确定断点以下150 m内油气层识别依据为:含油岩屑(含荧光显示)占砂岩含量不小于3%,气测全烃异常相对幅度大于1.9,气测有C3组分,地球物理测井电阻率大于60Ω·m。利用地球物理测井资料结合气测异常显示层进行解释,同时分析岩石热解录井资料,评价了B437井油气显示层段试油,发现了高产工业油流。The petroleum geological conditions of Sungang block are very complex,the interpretation and evaluation of oil and gas display layers are difficult,and the coincidence rate of traditional interpretation methods is low.Therefore,based on the analysis of the traps,reservoir distribution,reservoir characteristics and fluid properties in Sungang block,the oil and gas display layers within 150 m below the breakpoint are recognized as follows:oil-bearing debris(including those with fluorescence)content is greater than 3%,the relative amplitude of total hydrocarbon anomaly in gas measurement is greater than 1.9 and C3 is detected,the logging resistivity is greater than 60Ω·m.By using the abnormal display layers of gas logging,the interpretation and evaluation of well B437 were carried out to analyze the logging data of rock pyrolysis,and the high-yield industrial oil flow is found.

关 键 词：断点 油气显示 录井 气测特征 

分 类 号：TE133[石油与天然气工程—油气勘探]