【摘要】 泌阳凹陷北部斜坡带发育一系列规模不同的鼻状构造,由于断层的切割,在鼻状构造背景上发育了多个断鼻、断块群圈闭。位于北部斜坡带中部新庄地区的断裂鼻状构造是油气运移的指向区,发育有小断块、小断鼻和地层不整合油藏。针对北部斜坡带构造破碎、圈闭面积小、断层小等特点,以三维地震资料和测井资料为基础,利用地震层位标定、三维可视化解释、相干体断层分析等技术对新庄地区古近系核桃园组进行了构造精细解释,发现并落实了面积大于0.05km~2的小断鼻、断块和地层不整合等圈闭,解释目的层深度与钻井深度的绝对误差在5 m以内。根据解释结果,部署钻探了多口井,有60%的井钻遇油层,新增探明石油地质储量425.19×10~4t。更多还原

【Abstract】 The northern slope of Biyang depression is characterized by a series of different-scale nose-like structures;because of the cutting of faults,some faulted noses and faulted block structural traps are developed along the nose-like structures.Faulted nose structures in Xinzhuang area at the central of slope are the directional region of hydrocarbon migration,with small fault blocks,small faulted noses and unconformity reservoirs developed in the area.Aiming at the characteristics of broken structures,small trap area and small faults in the northern slope,based on the 3-D seismic data and logging data, some techniques were utilized to interpret Hetaoyuan formation of Paleogene system in Xinzhuang area,including seismic horizon calibration,3-D visualization interpretation and fault analysis by coherence cubes.The ascertained trap is bigger than 0.05km~2,including small faulted nose,fault block and unconformity formation. The absolute error between interpreted depth and drilling depth of target is smaller than 5 m.some wells were deployed and drilled in terms of the interpretation results,and 60%of the wells drilled oil layers.The newly proved geological reserves are 425.19×10~4 t.更多还原