摘要
粗面岩油藏是一种特殊油气藏,已受到国内外油田的广泛关注,但目前国内对粗面岩力学特性的研究还很少。分析了粗面岩的岩性和裂缝发育情况,以岩石力学和弹性力学为理论基础,从岩石的应力-应变曲线和试验的基本原理出发,结合辽河油田小龙湾地区现场实际,通过粗面岩岩心单轴试验,得到了粗面岩的抗压强度、弹性模量、泊松比和抗拉强度等基本岩石力学参教。根据试验得到的应力-应变曲线,结合弹性力学相关理论,得出小龙湾地区粗面岩的力学特性为线弹性,并给出了其基本力学参数的取值范围。该结果对辽河油田小龙湾地区粗面岩油气藏的压裂设计和油气田开发具有重要的指导意义和参考价值。
Trachyte reservoir, a special reservoir, has received extensive attention throughout the world. However, not many researches have been eondueted to investigate mechanies eharaeteristics of trachyte. The lithology and the fracture development of trachyte were analyzed. Being started with stress-strain curve and basis theory of experiment, the rock mechanics parameters such as the tensile strength, elastic modulus, Poisson＇s ratio, compression strength, etc. were obtained through unipolar experiment of Trachyte considering the actual condition in Xiaolongwan area, based on the theory of rock mechanics and elastic-plastic mechanics. The meehanies characteristics of traehyte is linear elastic and the basic mechanics parameter of traehyte are determined, based on the stress-strain curve obtained from experiments and the associated elastic theory. The results will play an important role in guiding fracture design and reservoir exploitation of trachyte reservoir in Xiaolongwan area.
出处
《石油钻探技术》
CAS
北大核心
2007年第1期26-28,共3页
Petroleum Drilling Techniques
