川东地区长兴组生物礁储层地震预测方法  

Seismic prediction method for bio-reef reservoirs of the Changxing Formation in the east Sichuan area

作　　者：王彬权 Wang Binquan(Sinopec Petroleum Geophysical Exploration Technology Research Institute Co.,LTD,Nanjing 211103)

机构地区：[1]中石化石油物探技术研究院有限公司,江苏南京211103

出　　处：《石化技术》2025年第3期260-262,共3页Petrochemical Industry Technology

摘　　要：川东地区长兴组生物礁储层受控于开江-梁平海槽沉积相带控制,同时具有岩性物性复杂、非均质性强的特点,是制约该区高效勘探开发的主要原因。针对难点,通过地震反射特征分析确定相带刻画的有利敏感属性;随后利用多种敏感属性结合古地貌刻画生物礁发育的有利相带;最后利用相带结果作为约束,构建低频模型并采用高分辨率反演方法进行储层预测。该方法有别于传统储层预测方式,避免了井位分布不均失真导致的模型失真问题,预测结果更符合地质规律,有效指导研究区下一步开发。The bio-reef reservoirs of Changxing Formation in the east Sichuan area are controlled by the sedimentary phase zone of the Kaijiang-Liangping Trough,and at the same time,they are characterized by complex lithophysical properties and non-homogeneity,which are the main reasons restricting the efficient exploration and development in this area.To address the difficulties,favorable sensitive attributes for phase zone delineation are determined by seismic reflection characterization;subsequently,multiple sensitive attributes combined with paleogeomorphology are used to delineate favorable phase zones for bio-reef development;finally,the phase zone results are used as constraints to construct a low-frequency model and adopt a high-resolution inversion method for reservoir prediction.This method is different from the traditional reservoir prediction method and avoids the model distortion caused by the uneven distribution of wells,and the prediction results are more in line with the geological law,which can effectively guide the next step of development in the study area.

关 键 词：川东地区 生物礁储层 长兴组 相带刻画 相控预测 

分 类 号：P631.4[天文地球—地质矿产勘探]