The Effects of Shale Interlayers on SAGD-Performance

doi:10.11885/j.issn.1674-5086.2015.02.10.03

Abstract

Abstract: SAGD performance is very sensitive to reservoir heterogeneity, and shale interlayers have a certain effect on a SAGD drainage channel with dual horizontal wells. Based on research of the Xinjiang Fengcheng oilfield, the multiple-factors numerical model characterizing a reservoir with interlayers between or above an injector-producer was established, and the SAGD performances were simulated under different interlayer distributions and horizontal and vertical locations to obtain the threshold parameters. In addition, the oil production profiles were used to detect geological architectures such as the size and the vertical location of shale barriers and act as a guide to enhance well deployment and avoid geological risk, thereby providing significant guidance for the realization of a SAGD-efficient development.

Key words: shale interlayer, SAGD, steam chamber development, oil rate curve, interlayer distribution

CLC Number:

TE357

TANG Shuai, WU Yongbin, LIU Pengcheng, ZHANG Jinchuan, LIU Yang. The Effects of Shale Interlayers on SAGD-Performance[J]. 西南石油大学学报(自然科学版), 2017, 39(1): 140-147.

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