摘要
琼东南盆地深水区松南低凸起花岗岩古潜山是南海西部重点油气勘探领域。受该区复杂地质条件与地震资料品质影响,其前古近系潜山优质储层预测与含油气性检测研究难度较大。从已钻井资料出发,结合地质地球物理资料综合分析,精细划分并评价了古潜山储层纵向有利相带,并应用蚂蚁体融合曲率体技术刻画了古潜山有利储层空间展布,有效提高了潜山裂缝性储层预测精度;同时,结合基于倒谱变换的地震纹技术,从正演模拟出发,开展了古潜山有利储层含气性分析,在研究区取得了较好的应用效果,极大地促进和推动了深水油气勘探进程。
The granitic buried-hills on the Songnan Low Uplift in the deep water areas of the Qiongdongnan Basin is a key exploration target in the Western South China Sea. Owing to the complexity of geological conditions and low quality of seismic data, it is difficult to predict favorable reservoirs in the study area. In this paper,based on drilling data, favorable facies zones for buried-hills are identified and subdivided. And the ant tracking technique merged with curvature attributes is adopted to describe the distribution of favorable fracture reservoirs in the buried-hills, and as the results, the prediction accuracy of fractured reservoir is effectively improved. At the same time, combined with the seismic print technology based on quefrency transform, we carry out detection of favorable reservoir in buried-hills based on forward modeling, which is proven efficient and successful and may benefit the future exploration projects in the study area.
作者
宋爱学
杨金海
胡斌
刘亿
任丽娟
曹俊兴
SONG Aixue;YANG Jinhai;HU Bin;LIU Yi;REN Lijuan;CAO Junxing(Zhanjiang Branch of CNOOC Limited,Zhanjiang 524057,China;Chengdu University of Technology,College of Geophysics,Chengdu 610059,China)
出处
《海洋地质前沿》
CSCD
北大核心
2021年第7期60-67,共8页
Marine Geology Frontiers
基金
“十三五”国家重大科技专项“琼东南盆地深水区大中型气田形成条件及勘探关键技术”(2016ZX05026-002)。
关键词
古潜山储层
裂缝预测
蚂蚁体
属性融合
地震纹
琼东南盆地
buried-hill reservoir
fracture prediction
ant track
attribute merge
seismic print
Qiongdongnan Basin
