Zhu, T. T., Wang, G. C., & Si, Q. (2022). Study on Heterogeneity of Chang 2 Reservoir in Zichang Area, Ordos Basin. Journal of Chongqing University of Science and Technology (Natural Sciences Edition), 24, 14-21.

has been cited by the following article:

• TITLE: Evaluation of Chang 2 Reservoir in Zichang Area, Ordos Basin

  AUTHORS: Zhiwei Du, Zhaoyong Ping, Feng Chen

  KEYWORDS: Zichang Area, Sedimentary Microfacies, Reservoir Assessment, Ordos Basin

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.12 No.4, April 12, 2024

  ABSTRACT: In this paper, the Chang 2 reservoir in Zichang Area of Ordos Basin, the second largest sedimentary basin in China, is classified and evaluated by using logging and core data, thin section identification and electron microscopy. The main sedimentary microfacies of Chang 213 is braided river delta sedimentary system in geological history, and there are three main sedimentary microfacies types: swamp microfacies, distributary channel microfacies and natural embankment microfacies on land. The heterogeneity in the study area is as follows: Chang 212 formation has the strongest heterogeneity, followed by Chang 211 formation with strong heterogeneity, and finally Chang 213 formation with medium heterogeneity. The reservoirs of Chang 2 member in the study area are dominated by IIIa, IIb and IIIb, and the reservoirs are mainly composed of ultra-low porosity and low permeability reservoirs and low porosity and low permeability reservoirs.