Using Well Logging Data to Calculate and Analyze Earth Stress of Pinghu Oil and Gas Field in East China Sea

详细信息   

• 责任者：Xu Fengguang (Xu Fengguang ; Chen Ming) ; Chen Ming
• 刊名：Fault-Block Oil and Gas Fields
• 出版年：2012
• 卷期：19(3)
• 关键词：地应力 ; geostress ; 地球物理测井 ; geophysical logging ; 平湖构造 ; Pinghu Structure
• 页码：p.401-405
• 图表：2 illus., 14 refs.
• 分类号：1600,1003
• issnNo：ISSN1005-8907
• isbnNo：CN41-1219/TE

摘要

Using the well logging data,the earth stress of Pinghu Oil and Gas Field is studied,having very important meanings to the fracturing,drilling and development of low permeability reservoir.In this article,the rock mechanics parameters required for earth stress calculation are determined by using the data of density,gamma ray,XMAC-Ⅱlog,such as Poisson ratio,modulus of elasticity,bulk modulus and so on.In the determination of pore pressure and tectonic stress coefficient,the Huang and Ge earth stress model are used learning from previous research and the calculation method of earth stress for Pinghu Oil and Gas Field is established,which is verified by the earth stress experiment of core.The horizontal stress direction of target zone is determined based on XMAC-Ⅱfast shear azimuth method,which coincides with the result from the earth stress experiment of core by wave anisotropy and viscous residual field method.