Characteristics of Sandy Debris Flow Reservoir of Upper Triassic Yanchang Formation Chang 8 Member in Southern Ordos Basin, China

摘要

Means and methods have undergone earth-shaking changes. Ordos basin has been a new important energy strategy experiment and development base in our country, especially dense reservoir of Yanchang formation of Ordos basin has also intensified its efforts for reservoir exploration and development, and in alignment with the reservoir structure for our country in the region on the basis of oil and gas development projects and to lay a new foundation. Detection results show that the sandy debris flow reservoir of upper Triassic Yanchang formation Chang 8 member main characteristic is its soil layer thickness is small, but as a whole the accumulative thickness is big, plus its sandy debris flow reservoir horizontal continuous geological factors such as poor continuity, increased difficulties of oil and gas development in the region. Therefore, in the process of practical exploration and development, not only need to consider the Chang 8 member sandy debris flow reservoir of southern Ordos basin characteristics, also need to water seepage neutral sedimentary theory as the development basis, considering historical materials about the content of core, logging, etc, to ensure sustainable development in the region.