Main controlling factors of natural fractures in tight reservoirs of the lucaogou formation in the jimsar sag, Xinjiang, China

Natural fractures act as critical flow channels and reservoir space in the Lucaogou Formation tight of Jimsar Sag. It is essential to identify main controlling factors natural order achieve efficient development oil this area. There are mainly three types fractures, including tectonic diagenetic abnormal overpressure-induced fractures. Diagenetic predominantly bedding seams. The fracture affected by multiple brittle minerals, lithology, stress, bed thickness, total organic carbon (TOC). Large smaller higher all favorable for controls minerals lithology on different Specifically, carbonate stimulate development, while have no control over seam development; most developed dolomitic rocks, seams argillaceous rocks. calculated density variation coefficients reveal that stress development.