摘要
涠洲N油田流一段上Ⅱ油组(L1上Ⅱ)的地震同相轴极具连续性,但实际钻井中在构造高部位、低部位钻遇的砂体类型却不同。面对此矛盾,研究用多种方法对该油组砂体进行精细刻画。首先,根据地震资料分析该油组的地震分辨率,并通过谱蓝化提高地震分辨率,以此识别油组井间砂体展布;其次,基于已提高分辨率的地震资料,应用地球物理反演法实现对砂体的精细刻画。与常规波阻抗反演法相比,波形指示反演法的分辨率更高,与实际钻井情况的吻合度更高。
The seismic event axis of N Oilfield(Weizhou Sag)in the second oil formation of the first member of Liuzhou formation is extremely continuous,but in actual drilling the types of sand bodies encountered at the high and low parts of the structure are different.In order to solve this problem,many methods have been used to carry out the fine characterization of sand bodies in this oil formation.Firstly,the seismic resolution of the oil formation is analyzed from the seismic data and spectral blueing is used to improve the seismic resolution to identify the sand body distribution between wells of the oil formation.Secondly,based on the seismic data with improved resolution,geophysical inversion method is used to realize fine description of sand body.Compared with conventional wave impedance inversion,waveform indication inversion has higher resolution and better coincidence with actual drilling conditions.
作者
彭军
马光克
刘巍
陈祖银
唐蓿
PENG Jun;MA Guangke;LIU Wei;CHEN Zuyin;TANG Xu(Zhanjiang Branch of CNOOC(China)Co.Ltd.,Zhanjiang Guangdong 524057,China;Hainan Branch of CNOOC(China)Co.Ltd.,Haikou 570312,China)
出处
《重庆科技学院学报（自然科学版）》
CAS
2023年第1期27-30,56,共5页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
中海石油有限公司基金项目“海上中深层油藏地球物理技术及其应用研究”(YXKY-2019-ZY-05)。
关键词
涠西南
储层
谱蓝化
纵波阻抗
波形指示
Weixinan
reservoir
spectrum blueing
longitudinal wave impedance
waveform indication
