低盐度水驱提高采收率实验研究

doi:10.11885/j.issn.1674-5086.2017.09.13.04

西南石油大学学报(自然科学版) ›› 2018, Vol. 40 ›› Issue (3): 129-135.DOI: 10.11885/j.issn.1674-5086.2017.09.13.04

低盐度水驱提高采收率实验研究

苏文博¹, 刘月田¹, 皮建², 王云鹏¹, 李长勇²

1. "油气资源与探测"国家重点实验室·中国石油大学, 北京昌平 102249;
2. 中海油研究总院有限责任公司, 北京朝阳 100028

收稿日期:2017-09-13 出版日期:2018-06-01 发布日期:2018-06-01
通讯作者: 刘月田,E-mail:lyt51@163.com
作者简介:苏文博,1989年生,男,汉族,河南周口人,博士,主要从事低盐度水驱技术的理论与应用研究工作。E-mail:suwb1007@163.com;刘月田,1965年生,男,汉族,河北无极人,教授,博士生导师,主要从事渗流力学与油藏开发、油藏模拟等方面的研究工作。E-mail:lyt51@163.com;皮建,1982年生,男,汉族,重庆垫江人,硕士,高级工程师,主要从事油气田开发方面的研究工作。E-mail:pijian@cnooc.com.cn;王云鹏,1994年生,男,汉族,河南郑州人,硕士,主要从事油气田开发方面的研究工作。E-mail:820315449@qq.com;李长勇,1989年生,男,汉族,山东德州人,硕士,工程师,主要从事油气田开发方面的研究工作。E-mail:lichy43@cnooc.com.cn
基金资助:
国家自然科学基金（5137422）；国家重点基础研究发展计划（2015CB250905）；国家科技重大专项（2017ZX05032-004-002）；中国石油重大科技专项（2017E-0405）

An Experimental Study on Improving Recovery Rate Using Low-salinity Water Drive

SU Wenbo¹, LIU Yuetian¹, PI Jian², WANG Yunpeng¹, LI Changyong²

1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum(Beijing), Changping, Beijing 102200, China;
2. CNOOC Research Institute Co., Ltd., Chaoyang, Beijing 100028, China

Received:2017-09-13 Online:2018-06-01 Published:2018-06-01

摘要/Abstract

摘要： 为了研究低盐度水驱时不同盐度条件下注水速度对开发的影响，通过室内岩芯驱替实验开展了注水速度对低盐度水驱提高采收率的影响研究。研究结果表明：当注水速度小于0.4 mL/min时，在相同注入体积情况下，与较高盐度水驱相比，低盐度水驱的采出程度更高，达到最大采出程度所需要的时间也更长；而在注水速度大于0.4 mL/min时，在相同注入体积情况下，低盐度水驱时的采出程度相对更低，达到最大采出程度所需的时间也更短；就提高采收率而言，高盐度水驱与低盐度水驱均存在最佳注水速度，且低盐度水驱的最佳注水速度要小于高盐度水驱的最佳注水速度。

关键词: 低盐度水驱, 高盐度水驱, 采收率, 注水速度, 盐度

Abstract: The effects of water-injection speed on the recovery rate using low-salinity water drive were studied through an indoor rock core displacement experiment. This experimental study was performed to investigate the effects of water-injection speed on recovery using water drive of different degrees of salinity. The research results showed that, with the same volume of water injected at a speed below 0.4 mL/min, low-salinity water drive resulted in a higher recovery rate but longer time to reach the maximum recovery rate compared to high-salinity water drive; and with the same volume of water injected at a speed above 0.4 mL/min, low-salinity water drive resulted in a lower recovery rate but shorter time to reach the maximum recovery rate, compared to high-salinity water drive. In other words, the maximum recovery rate corresponded to an optimum water-injection speed, irrespective of whether low-salinity or high-salinity water drive was used. Thus, the results also showed that the optimum water-injection speed for low-salinity water drive was lower than that for the high-salinity water drive.

Key words: low-salinity water drive, high-salinity water drive, recovery rate, water-injection speed, salinity

中图分类号:

TE343

苏文博, 刘月田, 皮建, 王云鹏, 李长勇. 低盐度水驱提高采收率实验研究[J]. 西南石油大学学报(自然科学版), 2018, 40(3): 129-135.

SU Wenbo, LIU Yuetian, PI Jian, WANG Yunpeng, LI Changyong. An Experimental Study on Improving Recovery Rate Using Low-salinity Water Drive[J]. 西南石油大学学报(自然科学版), 2018, 40(3): 129-135.

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低盐度水驱提高采收率实验研究

An Experimental Study on Improving Recovery Rate Using Low-salinity Water Drive

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