Fracability Evaluation of Conglomerate Reservoirs in Baikouquan Formation in Ma-131 Well Block

doi:10.7657/XJPG20220210

Abstract

Abstract:

For developing the tight conglomerate reservoirs in the Baikouquan formation in Mahu oilfield with small well-spacing, it is urgent to establish an appropriate fracability evaluation model. Based on the optimal parameters such as elastic modulus, Poisson’s ratio and minimum in-situ stress, and combined with the core, logging and seismic data, the 3D geomechanical modeling was carried out for Ma-131 well block. The spatial distribution of the fracability index (0.38-0.91) of the reservoir in the study area was determined. Coupling with the microseismic fracture monitoring and production data from 12 horizontal wells, it is found that the calculated fractability index is consistent with the fracture propagation direction and scale, and the actual production performance of the wells. The research results may provide a basis for developing the conglomerate reservoirs in the study area.

Key words: Mahu oilfield, Baikouquan formation, conglomerate reservoir, small well spacing, geomechanics, fracability index, microseis-mic, fracture propagation

CLC Number:

TE357.11

CAI Wenjun, FENG Yongcun, YAN Wei, JIANG Qingping, MENG Xianglong, LIU Kai. Fracability Evaluation of Conglomerate Reservoirs in Baikouquan Formation in Ma-131 Well Block[J]. Xinjiang Petroleum Geology, 2022, 43(2): 194-199.

Figures/Tables 7

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