特种油气藏2018，Vol.25Issue(2)：80-84,5.DOI:10.3969/j.issn.1006-6535.2018.02.015
超稠油非均质油藏直井-水平井SAGD精细化调控研究
Fine Control of Vertical-Horizontal SAGDD in Super-Heavy Oil Heterogeneous Reservoir
摘要
Abstract
In order to improve the poor steam huff-puff performance for the late stage of super-heavy oil reservoir in Wellblock Zhong32 Qigu Formation of Fengcheng Oilfield and the unsatisfied fine control after vertical-horizontal SAGD,a numerical model of heterogeneous reservoir for the pilot area is established to optimize the injection-pro-duction parameters after implementing SAGD. Numerical simulation result indicates that the reasonable parameters for vertical-horizontal SAGD include steam injection rate of 50 t/d,bottom-hole steam dryness greater than 0.7, production-injection ratio of 1.2 and composite steam flooding with vertical well.All the production wells are classi-fied into four categories,namely response,small-response,non-response and steam-channeling wells. The corre-sponding control measures are normal production,liquid extraction by adjusting injection-production parameters, huff-puff enhancement and control shut-in. After SAGD implementation in the pilot area,the daily oil production is increased from 69 t/d to 128 t/d,temporary oil-steam ratio is enhanced from 0.11 to 0.21,which greatly en-hance the production performance.This research could provide significant guidance for the field fine control in super-heavy heterogeneous oil reservoir and could also provide certain reference for the vertical-horizontal SAGD devel-opment in similar heavy oil reservoirs.关键词
超稠油油藏/直井-水平井SAGD/非均质/注采参数/精细化调控/风城油田Key words
super-heavy oil reservoir/vertical-horizontal SAGD/heterogeneity/injection-production parameter/fine control/Fengcheng Oilfield分类
能源科技引用本文复制引用
陶亮,李凌铎,袁玉晓,杨树波,任柯全..超稠油非均质油藏直井-水平井SAGD精细化调控研究[J].特种油气藏,2018,25(2):80-84,5.基金项目
国家科技重大专项"薄层稠油和超稠油开发技术"(2011ZX05012-004) （2011ZX05012-004）
中国石油"新疆大庆"科技重大专项"浅层稠油和超稠油开发技术研究与应用"(2012E-34-05) （2012E-34-05）
