| 超稠油溶剂辅助SAGD启动技术油藏适应性研究 |
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| 引用本文： | 杨兆臣,于兵,吴永彬,王丽,张家豪,佟娟,姜丹,张崇刚. 超稠油溶剂辅助SAGD启动技术油藏适应性研究[J]. 特种油气藏, 2020, 27(4): 67-72. DOI: 10.3969/j.issn.1006-6535.2020.04.010 |
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| 作者姓名： | 杨兆臣 于兵 吴永彬 王丽 张家豪 佟娟 姜丹 张崇刚 |
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| 作者单位： | 1.中国石油新疆油田分公司,新疆 克拉玛依 834000;2.中国石油勘探开发研究院,北京 100083;3.中国石油辽河油田分公司,辽宁 盘锦 124000 |
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| 基金项目： | 国家科技重大专项“稠油/超稠油开发关键技术”(2016ZX05012);中国石油科技项目“稠油注溶剂开采新技术研究”(2016B-1403) |
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| 摘 要： | 针对双水平井SAGD常规蒸汽循环预热启动存在的蒸汽预热降黏慢、循环预热时间长、蒸汽消耗量大、井间动用不均衡等问题,采用室内实验和数值模拟相结合的方法,对溶剂辅助SAGD预热启动技术的原理与适用性进行了研究。研究结果表明:溶剂辅助SAGD具有缩短预热时间、减少蒸汽用量、实现井间均匀连通的效果,适用于水平段井间渗透率不小于500 mD、含油饱和度不小于60%、50℃原油黏度为2.0×104~10.0×104mPa·s的超稠油油藏。形成的油藏筛选条件为其他稠油油藏开展溶剂辅助SAGD启动技术提供了筛选依据。
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| 关 键 词： | 溶剂辅助 SAGD 启动阶段 井间连通 超稠油油藏 |
| 收稿时间： | 2019-10-16 |
Solvent-Assisted SAGD Startup Technology Adaptability in Super-Heavy Oil Reservoir |
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| Yang Zhaochen,Yu Bing,Wu Yongbin,Wang Li,Zhang Jiahao,Tong Juan,Jiang Dan,Zhang Chonggang. Solvent-Assisted SAGD Startup Technology Adaptability in Super-Heavy Oil Reservoir[J]. Special Oil & Gas Reservoirs, 2020, 27(4): 67-72. DOI: 10.3969/j.issn.1006-6535.2020.04.010 |
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| Authors: | Yang Zhaochen Yu Bing Wu Yongbin Wang Li Zhang Jiahao Tong Juan Jiang Dan Zhang Chonggang |
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| Affiliation: | 1. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;2. PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China;3. PetroChina Liaohe Oilfield Company,Panjin,Liaoning 12400,China |
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| Abstract: | In order to improve the low viscosity reduction rate of steam preheating, long preheating cycle, large steam consumption, uneven interwell producing degree and other problems in the dual horizontal-well SAGD with conventional steam cycle preheating, laboratory test and numerical simulation were combined to understanding the technical principle and adaptability of solvent-assisted SAGD preheating startup technology. Research indicates that the solvent-assisted SAGD is featured by small preheating cycle, low steam consumption and uniform interwell connectivity, which is applicable for the super-heavy oil reservoirs with permeability between lateral sections not less than 500 mD, oil saturation not less than 60% and the crude oil viscosity from 2.0×104 mPa·s to 10.0×104 mPa·s at 50 ℃. The reservoir screening principles could provide certain reference for other heavy oil reservoirs to implement solvent-assisted SAGD startup technology. |
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| Keywords: | solvent-assisted SAGD startup stage interwell connectivity heavy oil reservois |
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