Title: The relationship between the characteristics of sand bodies and the properties of Lower Jurassic reservoirs in eastern Kuqa depression, Tarim basin.
Abstract: On the comprehensive analysis of investigating outcrops, testing samples and drilling data, it is considered that the Lower Jurassic sand bodies in eastern Kuqa depression are predominately of braided distributary channel and subaqueous distributary channel subfacies and subordinately of distributary mouth bar subfacies, both of which belongs to braided delta depositional system. They can be subdivided into nine types of sand body according to their genesis; five kinds of sand body according to their sequence structures and two types of jigsaw puzzle and labyrinth reservoir architectures according to their shapes. The control of the characteristics of sand bodies on the reservoir properties is mainly of the grain size,that is the property of relatively coarser sandstones obviously becomes better. So it comes to the conclusion that braided distributary channel and subaqueous distributary subfacies are the good oil and gas reservoir sand bodies.
Publication Year: 2001
Publication Date: 2001-01-01
Language: en
Type: article
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Cited By Count: 4
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