Open AccessFracture Types and Its Control Factors in Tight Oil Reservoirs
Author(s) -
Xiaoxuan Fan,
Shuai Gao,
Xiaocen Su,
Jie Wang,
Qianli Lu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1578/1/012216
Subject(s) - geology , tight gas , lithology , fracture (geology) , drilling , petroleum engineering , diagenesis , tight oil , petrology , geotechnical engineering , geochemistry , hydraulic fracturing , materials science , paleontology , oil shale , metallurgy
Fractures are well developed in tight sandstone reservoirs, which are the main reservoir space and important seepage channel. Fractures control the migration, accumulation, preservation and single well productivity of tight oil and gas, and affect the drilling and completion methods, fracturing reconstruction measures and production effect of tight oil exploration and development. This paper mainly studies the genetic type, development characteristics and control factors of fractures in tight reservoirs. According to the geological origin of fractures, there are two types of structural fractures and diagenetic fractures in the study area, among which high angle structural fractures are the main one, and it is layer controlled fracture. The degree of fracture development is controlled by lithology, formation thickness, sedimentary micro and other rock heterogeneity factors.