Application of Seismic Sedimentology in BZ19-4 Oilfield
详细信息
- 责任者：Li Chao (Research Institute of Exploration and Development ; Tianjin Branch ; CNOOC ; Tianjin 300452 ; China) ; Liao Xinwu
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2013
- 卷期：20(1)
- 关键词：砂体 ; sand bodies ; 地震沉积学 ; seismic sedimentology ; 渤中坳陷 ; Bozhong Depression
- 页码：p.47-50
- 图表：illus., 21 refs.
- 分类号：1003
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
Seismic sedimentology can be used to study sedimentary system,plane distribution of sedimentary facies and sedimentary evolution through the use of 3D seismic data and modern geophysical technology(90° phase control and strata slice),combined with drilling data.Because the drilling date lack for offshore oilfield,seismic sedimentology method can be used to study sedimentary systems.In BZ19-4 Oilfield which is located in the southern part of Bohai Sea,we use the method to conduct the application study of seismic sedimentology in Lower Minghuazhan Formation.That is the sequence division and strata correlation can be conducted by the well-seismic combination.According to the layer thicknes,we select the reasonable slice window and make the slice through the use 90° phase shift seismic data.Then,strata slice is studied,and geological interpretation is completed through the combination of drilling data at the same time.Study results show that the shallow water delta sedimentary sandbodies developed in the study area and they underwent the sedimentary evolution from narrow channel sandbody in oil measures Ⅲ and Ⅳ to lobation delta sandbody in oil measures Ⅰ and Ⅱ.Different development strategies can be adopted aiming at the sandbody development feature of different oil measures during oilfield development.