Abstract
Previous studies show that the control of geological structure on gas and water distribution is extremely negative or even can be ignored in Ordos Basin. However, it is found that the structural trap has obvious control effect on the distribution of gas and water, especially in Shan23 sub-member in Wushenzhao. The characteristics of reservoir, trap types and accumulation rule of gas reservoir are discussed in this paper, and the results show that Shan23 sub-member belongs to extra-low porosity and extra-low permeability and even ultra-low permeability reservoirs. The type of gas reservoir trap is a structural-lithologic trap with a quasi-domed shape. The accumulation and preservation of natural gas are controlled by both low-amplitude structures and sand bodies.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
