Forward Modeling of 3D Induction Logging Tool in 3D Borehole Environment
详细信息
- 责任者：Zhang Guoyan (Greatwall Drilling Company ; CNPC ; Beijing 100176 ; China) ; Xiao Jiaqi
- 刊名：Journal of China University of Petroleum
- 出版年：2013
- 卷期：37(3)
- 关键词：感应测井 ; induction logging ; 正演模拟 ; forward modelling
- 页码：p.63-67,82
- 图表：illus., 15 refs.
- 分类号：1600
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
The influence of the bed boundary,borehole drilling fluid,invasion and the tool eccentricity on apparent conductivity of the three-coil array of a 3D induction well logging tool was analyzed.The results show that the apparent conductivity in the XX/YY direction can be affected more by borehole drilling fluid than the apparent conductivity in the ZZ direction.In the presence of invasion,the shift direction of the apparent XX/YY-direction conductivity is opposite to the ZZ-direction apparent conductivity.The borehole drilling fluid and invasion affect XZ/ZX-direction apparent conductivity mainly in the boundary.A decentralized tool will not affect the ZZ-direction apparent conductivity.When the tool is decentralized in the X direction,the apparent conductivity in the YY direction can be significantly distorted.But when the tool is decentralized in the Y direction,the effect on the apparent conductivity in the XX direction will be the maxmum.