Paramaters Optimization of Different Production Stages by DualHorizontal Well SAGD Process for SuperHeavy Oil Reservoir

Abstract

Abstract: Taking the shallow super?heavy oil reservoir in Fengcheng oilfield developed by dual?horizontal well SAGD (steam assisted gravity drainage) process in pilot test area as an example, combined with tracking numerical simulation, in accordance with the characteristics of steam chamber operating pressure，production?injection ratio and development characteristics of steam chamber, the starting stage and production stage of the SAGD are subdivided into such six stages as uniform?pressure heat circulation, balanced pressurization heat circulation, early stage of switching to SAGD, SAGD production at high?pressure, SAGD stable production and SAGD depletion production, and the conditions of each stage conversion are proposed. According to the production performance of the dual?horizontal well SAGD pilot test area, the injection?production parameters at each stage are optimized, which could be served as technical references for the dual?horizontal well SAGD in similar reservoirs

CLC Number:

TE357.41

SUN Xingea, HE Wanjuna, HU Xiaobob, WU Yongqiangc, ZHANG Jianhuab, ZHANG Weid. Paramaters Optimization of Different Production Stages by DualHorizontal Well SAGD Process for SuperHeavy Oil Reservoir[J]. , 2012, 33(6): 1-1.

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Paramaters Optimization of Different Production Stages by DualHorizontal Well SAGD Process for SuperHeavy Oil Reservoir

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