Quantitative Study on Parameters of Condensate Contraction Joint Fracture in Contact Metamorphic Belt
详细信息
- 责任者：Wang Jun (Research Center of Western New Exploration Areas ; Shengli Oilfield Company ; SINOPEC ; Dongying 257015 ; China) ; Cui Hongzhuang
- 刊名：Journal of Jilin University
- 出版年：2012
- 卷期：42(1)
- 关键词：变质带 ; metamorphic belts ; 侵入体 ; intrusions ; 苏北盆地 ; Subei Basin
- 页码：p.58-65
- 图表：6 illus., 2 tables, 19 refs.
- 分类号：0802
- 出版序号：20130163
- issnNo：ISSN1671-5888
- isbnNo：CN22-1343/P
摘要
Temperature and stress of country rock are obtained by the simulation of the temperature and stress when magma emplaced. The quantitative relationship between heat field and condensation contraction joint are established by integrated application of strain energy and surface energy theory. The fracture parameters are assessed quantitatively. Consequently, the development law of contraction joint is concluded in metamorphic belt. Overall, the upper metamorphic permeability is slightly better than that of the lower one. The maximum porosity of condensation contraction joints lies in the most thickness of the intrusive rocks, and short axis direction of crack penetration is similar to vertical direction, while its permeability is greater than that of the long axis. The validity of this simulation is testified by rock core statistics.