YU J W, WU A C, WANG X,et al. Evaluation and classification of productivity in reservoirs of Qigu Formation on the Fudong Slope,Junggar Basin[J].Journal of Henan Polytechnic University(Natural Science) ,2023,42(3):50-58.

doi: 10.16186/j.cnki.1673-9787.2021020023

Received:2021/02/09

Revised:2021/04/20

Published:2023/05/25

Evaluation and classification of productivity in reservoirs of Qigu Formation on the Fudong Slope，Junggar Basin

YU Jingwei1，WU Aicheng2，WANG Xin2，LIAO Mingjia3，QI Liqi1，FENG Cheng1，GU Shangxi1，CAI Yu1

1.Institute of Petroleum，China University of Petroleum-Beijing at Karamay，Karamay 834000，Xinjiang，China；2.Research Institute of Exploration and Development，Xinjiang Oilfield Company，Karamay 834000，Xinjiang，China；3.Institute of Chemical Engineering，Chongqing ChemicalIndustry Vocational College，Chongqing，400000，China

Abstract: The productivity of reservoirs in Qigu Formation was evaluated by 9 indexes，such as porosity,per⁃meability, volume fraction of quartz, grain size, coefficient of anisotropy, abnormal pressure coefficient, compac⁃tion effect,volume fraction of calcite and chlorite,single sand body thickness were used to make evaluation andclassification on productivity in reservoirs，all of which would improve productivity in reservoirs of Qigu For⁃mation on the Fudong Slope of Junggar Basin. The result showed that the weight coefficient of each factorscould be quantitatively calculated by two analysis methods，productivity of reservoirs in Qigu Formation wasmainly controlled by compaction；Based on evaluation standard，reservoirs in Qigu Formation were dividedinto three types，and classification was anastomosed with current exploration and development situation，which showed feasibility of two methods was good.

Key words:Junngar Basin；Qigu Formation；grey correlation analysis；principal component analysis；productivityevaluation

准噶尔盆地阜东斜坡区齐古组储集层产能评价与分类_于景维.pdf