变质岩潜山储层分带特征及在地质作业中的应用——以渤中凹陷及周缘潜山为例  

Zoning characteristics of metamorphic rock buried hill reservoirs and application in geological operations:A case study of Bozhong sag and surrounding buried hills

作　　者：李战奎 尚锁贵 郭明宇 徐鲲 袁亚东 马金鑫 蒋少龙 LI Zhankui;SHANG Suogui;GUO Mingyu;XU Kun;YUAN Yadong;MA Jinxin;JIANG Shaolong(CNOOC EnerTech-Drilling&Production Co.,Tianjin 300459,China;CNOOC China Limited,Tianjin Branch,Tianjin 300459,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300459 [2]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《中国海上油气》2023年第5期61-68,共8页China Offshore Oil and Gas

基　　金：中海石油(中国)有限公司“七年行动计划”重大科技专项“渤海油田上产4000万吨新领域勘探关键技术(编号:CNOOC-KJ 135 ZDXM36 TJ 08 TJ)”部分研究成果。

摘　　要：随钻过程中对变质岩潜山结构识别不准确制约了太古界变质岩潜山储集层随钻过程中的划分,进而影响对潜山储集层空间分布规律的认识。以渤海油田渤中凹陷太古界潜山花岗片麻岩岩屑、薄片等录井资料为基础,结合测井电阻率和成像密度等数据,将太古界变质岩潜山纵向上分为5个带,即黏土带、风化砂砾岩带、风化淋滤带、致密带和内幕裂缝带,并建立了不同分带录测井识别特征,为随钻过程中优质储层划分和油气层解释提供依据。通过在渤海油田太古界潜山勘探中应用,为卡潜山作业、优质储层识别和油气层解释等提供了重要依据,为后续类似潜山勘探提供了技术借鉴。The inaccurate identification of metamorphic reservoir structure during drilling restricts the division of Archean metamorphic buried hill reservoir during drilling and further affects the understanding of the spatial distribution of buried hill reservoir.Based on the logging data of the Archaean buried hill granitic gneiss cuttings and thin sections in Bozhong sag of the Bohai oilfield,combining data such as logging resistivity and imaging density.The Archaean metamorphic buried hill is vertically divided into five zones:clay zone,weathered glutenite zone,weathered leaching zone,dense zone,and internal fracture zone,the identification characteristics of different zonal logging are established to provide basis for high-quality reservoir classification and hydrocarbon reservoir interpretation during field operation.The application in the exploration of Archaean buried hill in Bohai oilfield provides an important basis for the operation of buried hill,identification of high-quality reservoirs and interpretation of oil and gas reservoirs,and provides a technical reference for the subsequent exploration of similar buried hills.

关 键 词：太古界 变质岩 潜山 储层分带 识别特征 地质作业 渤中凹陷 

分 类 号：TE132.14[石油与天然气工程—油气勘探]