摘要
四川盆地川中地区龙王庙组是典型的深部碳酸盐岩储层,是川中主要的产能层之一。该区龙王庙组普遍发育多样缝洞型储层,且空间分布复杂,常规解释方法无法精确划分缝洞型储层。为了有效刻画单井碳酸盐岩地层缝洞发育段,首先利用全波列数据处理得到斯通利波能量衰减曲线,再根据电成像测井资料计算的面洞率标定不同类型缝洞的斯通利波能量范围值,研究表明缝洞发育段的斯通利波能量衰减明显增大,由此给出了缝洞发育段斯通利波能量衰减曲线的下限值为10%。电成像、阵列声波测井资料具有分辨率高、直观区分缝洞连通性等优势,能够准确刻画出缝洞型储层发育段,在四川盆地勘探中具有较大应用价值。
Longwangmiao formation,the main productivity layers in central Sichuan basin,is a typical deep carbonate reservoir.Longwangmiao formation in this area generally develops various fracture vuggy reservoirs,and their spatial distribution is complex.Conventional interpretation methods cannot accurately divide the fracture vuggy reservoirs.In order to effectively describe the fracture vuggy development section of single well carbonate formation,Stoneley wave energy attenuation curve is obtained by using full wave data processing,then Stoneley wave energy range values of different types of fracture vuggy are calibrated according to the face vuggy ratio calculated by electrical imaging logging data.The research shows that Stoneley wave energy attenuation of fracture vuggy development section is obviously increased now.Therefore,the cut-off value of Stoneley wave energy attenuation curve is 10%.Based on the advantages of electrical imaging and array acoustic logging data,such as high resolution,intuitive identification of fracture cavity connectivity,it can accurately depict the fracture cavity reservoir development section,which has great application value in the exploration of Sichuan basin.
作者
贺川航
林煜
陈华
代瑞雪
王紫笛
李春梅
HE Chuanhang;LIN Yu;CHEN Hua;DAI Ruixue;WANG Zidi;LI Chunmei(Southwest Geophysical Company CNPC BGP Inc.,Chengdu,Sichuan 610016,China;Exploration and Development Research Institute,Southwest Oil&Gas Company,PetroChina,Chengdu,Sichuan 610041,China)
出处
《测井技术》
CAS
2021年第1期74-79,共6页
Well Logging Technology
基金
十三五国家科技重大专项“四川盆地大型碳酸盐岩气田开发示范工程”(2016ZX05052-001)。
关键词
碳酸盐岩储层
成像测井
斯通利波能量衰减曲线
缝洞识别
龙王庙组
carbonate reservoir
imaging logging
Stoneley wave energy curve
fracture hole identification
Longwangmiao formation
