英买2地区多属性约束叠前宽方位裂缝预测  

Application of Multi-Attribute Constrained Prestack Wide-Azimuth Fracture Prediction in Yingmai-2 Area

作　　者：曾勇坚 高宏亮[2,3,4] 关宝珠 艾明波 蔡泉 李飞[2,3,4] 王张恒 ZENG Yongjian;GAO Hongliang;GUAN Baozhu;AI Mingbo;CAI Quan;LI Fei;WANG Zhangheng(School of Geosciences and Technology,China University of Petroleum(East China),Qingdao,Shandong 266580,China;Research Institute of Exploration and Development,Tarim Oilfield Company,PetroChina,Korla,Xinjiang 841000,China;R&D Center for Ultra-Deep Complex Reservior Exploration and Development,CNPC,Korla,Xinjiang,841000,China;Xinjiang Engineering Research Center for Ultra-deep Complex Reservoir Exploration and Development,Korla,Xinjiang 841000,China)

机构地区：[1]中国石油大学(华东)地球科学与技术学院,山东青岛266580 [2]中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒841000 [3]中国石油天然气集团有限公司超深层复杂油气藏勘探开发技术研发中心,新疆库尔勒841000 [4]新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心,新疆库尔勒841000

出　　处：《新疆石油地质》2024年第4期483-488,共6页Xinjiang Petroleum Geology

基　　金：中国石油科技项目(2023ZZ16)。

摘　　要：英买2地区位于塔里木盆地塔北隆起英买力低凸起南部的英买2号构造上,受构造运动和岩浆侵入的影响,发育大量定向排列的高角度裂缝,储集层主要为裂缝型储集层。由于英买2地区储集层埋藏深度大且非均质性强,采用相干、曲率、蚂蚁体等叠后裂缝预测技术预测该地区裂缝型储集层难度大。以英买2地区叠前宽方位偏移距矢量片(OVT)域道集为基础,开展以叠前去噪、各向异性时差校正等手段为主的井控叠前OVT域道集优化处理,获得高质量的叠前宽方位道集,并以能够表征缝洞型储集层的梯度结构张量、振幅曲率和剩余波阻抗为主的叠后多属性为约束开展叠前相控裂缝预测。能够有效预测超深层缝洞型碳酸盐岩储集层的裂缝,为塔里木盆地裂缝型储集层油气勘探开发提供借鉴。The Yingmai-2 area is situated on the Yingmai-2 structure in the southern part of the Yingmaili low bulge of the Tabei uplift,Tarim basin.Affected by tectonic movements and magmatic intrusion,a large number of directionally-aligned high-angle fractures were developed on the structure.The reservoirs are mainly fractured.Due to the deep burial depth and strong heterogeneity of the reservoirs in the Yingmai-2 area,predicting these fractured reservoirs using post-stack fracture prediction techniques like coherence,curvature,and anttracking proves challenging.Based on the pre-stack wide-azimuth offset vector tile(OVT)domain gather data from the Yingmai-2 area,wellcontrolled optimization processing of pre-stack OVT domain gather was implemented by employing techniques such as pre-stack denoising and anisotropy time difference correction to yield high-quality pre-stack wide-azimuth gather data.Subsequently,pre-stack facies-controlled fracture prediction was conducted under the constraints of post-stack multiple attributes that can represent fractured-vuggy reservoirs,including gradient structure tensor,amplitude curvature,and residual wave impedance.This methodology can effectively predict fractures in ultra-deep fractured-vuggy carbonate reservoirs,and offer valuable insights for the exploration and development of fractured reservoirs in the Tarim basin.

关 键 词：塔里木盆地 英买2地区 裂缝预测 缝洞型储集层 多属性约束 宽方位地震 OVT域 

分 类 号：TE122[石油与天然气工程—油气勘探]