Numerical Simulation of the Dual Laterolog Response to Fractures and Caves in Fractured-Cavernous Formation
详细信息
- 责任者：Deng Shaogui (School of Earth Sciences and Technique ; China University of Petroleum ; Qingdao 266580 ; China) ; Mo Xuanxue
- 刊名：Petroleum Exploration and Development
- 出版年：2012
- 卷期：39(6)
- 关键词：双侧向测井 ; dual laterolog ; 溶洞 ; caves ; 裂隙 ; cracks ; 储集空间 ; reservoir space
- 页码：p.706-712
- 图表：3 illus., 10 refs.
- 分类号：1600,1003
- issnNo：ISSN1000-0747
- isbnNo：CN11-2360/TE
摘要
To study the response characteristics of dual laterolog in fractured-cavernous reservoirs,a model of fractures and caves was built,and the 3D finite element method was utilized to simulate its logging responses.Caves of certain size have influence on the response of dual laterolog within certain space.The logging response of fractured-cavernous formation is mainly affected by fractures,and low angle fractures result in a negative difference of dual laterolog which is contrary to high angle fractures,but the existing caves do not change the matching relationship between the shallow and deep resistivity and fracture dip.The apparent conductivity of dual laterolog in fracture-cave formation presents a linear relationship with fracture aperture.