- 责任者：Cheng Yuqi (Department of Earth Sciences ; Nanjing University ; Nanjing 210093 ; China) ; Wang Shuli
- 刊名：Xinjiang Petroleum Geology
- 出版年：2009
- 卷期：30(1)
- 关键词：储层评价 ; reservoir evaluation ; 地应力测量 ; geostress surveys ; 海拉尔盆地 ; Hailar Basin
- 页码：p.81-84
- 图表：5 illus., 2 tables, 6 refs.
- 分类号：1003
- issnNo：ISSN1001-3873
- isbnNo：CN65-1107/TE
The Xing’anling Group’s tuffaceous sedimentary rock and the Budate Group’s epimetamorphic rock in Hailaer oilfield belong to low porosity and extra-low permeability reservoir, being characterized by poor physical property, low natural productivity and sensitive hydraulic fracturing effectiveness. A thorough understanding of the current ground stress of the reservoirs can help to determine such parameters as occurrence, length and width of fractures in fracturing design, reducing blindness of hydraulic fracturing operation. Analysis of the existed stress calculation model considering both tectonic stress and thermal stress is made in combination with real well logging data from this oilfield, and the ground stress interpretations of Bei-28, Bei-16 and Su-131 blocks are given, obtaining the stress profiles and the lithomechanics parameters along depth, and mathematical models for stress calculations in different blocks.