川西资阳地区龙王庙组岩溶圈闭识别方法及应用  

Identification and Application of Karst Traps in Longwangmiao Formation,Ziyang Area,Western Sichuan

作　　者：易杨 杨飞[2] 王顺 刘雅博 韩冰[2] YI Yang;YANG Fei;WANG Shun;LIU Ya-bo;HAN Bing(School of Geosciences,Yangtze University,Wuhan 430100,China;Key Laboratory of Oil and Gas Resources and Exploration Technology,Ministry of Education,Wuhan 430100,China)

机构地区：[1]长江大学地球科学学院,武汉430100 [2]油气资源与勘探技术教育部重点实验室,武汉430100

出　　处：《科学技术与工程》2021年第13期5296-5305,共10页Science Technology and Engineering

基　　金：国家科技重大专项(2016ZX05002-004-009)。

摘　　要：川西资阳地区寒武纪龙王庙组储层主要为受沉积控制的礁滩相储层,研究区内局限台地台内滩沉积厚度薄,并在工区西北出现剥蚀尖灭,区内储集层预测、岩溶圈闭边界的刻画以及有利区带的识别不明确。为了了解该区龙王庙组深海相碳酸盐岩储集层特征,在单井解析的基础上,结合区域构造及沉积特征,从多角度开展岩溶圈闭识别,分析岩溶圈闭形态,刻画圈闭空间展布,利用波阻抗反演技术进行储层边界的刻画,由此总结出一套针对资阳探区龙王庙组岩溶圈闭识别与储层预测的方法。此方法可为该区有利岩溶圈闭区的优选提供可靠依据。The reservoir of Cambrian Longwangmiao formation in Ziyang area of western Sichuan is mainly reef beach facies reservoir controlled by sedimentation.The deposition thickness of the restricted platform beach is thin,and erosion pinch out occurs in the northwest of the work area.Reservoir prediction,description of karst trap boundary and identification of favorable zones are not clear.In order to clarify the characteristics of deep-sea carbonate reservoir of Longwangmiao formation in this area,on the basis of single well analysis,combined with regional structure and sedimentary characteristics,karst trap identification was carried out from multiple angles,karst trap morphology was analyzed,trap spatial distribution was described,and reservoir boundary was characterized by wave impedance inversion technology.Therefore,a set of methods for identifying karst traps and reservoir prediction of Longwangmiao formation in Ziyang exploration area were summarized,which can provide reliable basis for the optimization of favorable karst trap areas in this area.

关 键 词：龙王庙组 岩溶圈闭 地震属性 波阻抗反演 储层预测 

分 类 号：TE121[石油与天然气工程—油气勘探] P624[天文地球—地质矿产勘探]