西南石油大学学报(自然科学版)

Previous Articles     Next Articles

Method and Development Model of Strata Correlation on Residual Strata#br# of Chunguang Oilfield

LI Weicai1,2*, YANG Xiaopei3, WANG Kejie3, ZHAO Rui4   

  1. 1. Postdoctoral Work station,Henan Oilfield Branch Corporation,SINOPEC,Nanyang,Henan 473132,China
    2. Postdoctoral Work station,China University of Geosciences,Wuhan,Hubei 430074,China
    3. Exploration & Production Research Institute,Henan Oilfield Branch Corporation,SINOPEC,Zhengzhou,Henan 450018,China
    4. Information Center,Henan Oilfield Branch Corporation,SINOPEC,Zhengzhou,Henan 450018,China
  • Online:2016-06-01 Published:2016-06-01

Abstract:

Chunguang oilfield is located on the Chepaizi uplift in western Junggar Basin,which has undergone multi-phase
intense tectonic movements,and is characteristic of a serious strata loss,and uneven distribution of the residual strata. Using
seismic,core and log data,and based on the stratigraphic base level cycle analysis and on the stratigraphic contact,we made
researches on methods for residual stratigraphic correlation of the Paleogene and Cretaceous strata in Chunguang oilfield,
and established a stratigraphic model,which is instructive to the subdivision and contrast of the residual strata. Results show
that the subdivision and contrast of the Paleogene and Cretaceous strata in Chunguang oilfield can be isochronous,through
the stratigraphic framework established on different levels of sequence boundary identification and analysis of stratigraphic
cyclicity. Comparison methods vary for different genetic types of formations. The strata correlation method and contrast
principle established in the paper are applicable to small layer contrast of Chunguang oilfield,and can be used to effectively
identify the missing formations and thickness of different genetic types of formations.

Key words: Junggar Basin, Chepaizi area, Chunguang Oilfield, residual stratum, sequence boundary, strata correlation

CLC Number: