华北油田地层水与注入水结垢趋势预测及影响因素

doi:10.3969/j.issn.1673-8926.2017.04.020

岩性油气藏 ›› 2017, Vol. 29 ›› Issue (4): 162–168.doi: 10.3969/j.issn.1673-8926.2017.04.020

• 石油工程 • 上一篇

华北油田地层水与注入水结垢趋势预测及影响因素

游靖¹, 王志坤², 余吉良¹, 张超², 孙霜青², 胡松青²

1. 中国石油华北油田分公司采油工程研究院, 河北任丘 062552;
2. 中国石油大学 (华东)理学院, 山东青岛 266580

收稿日期:2017-03-15 修回日期:2017-05-06 出版日期:2017-07-21 发布日期:2017-07-21
第一作者:游靖(1972-),男,高级工程师,主要从事油气田开发技术方面的研究工作。地址:(062552)河北省沧州市任丘市会战南道中国石油华北油田分公司采油工程研究院。Email:cyy_ypujing@petrochina.com.cn。
基金资助:
中国石油天然气股份公司重大科技专项“注入介质腐蚀结垢影响、预测及治理技术研究”（编号：2014E-3507）资助

Scaling tendency prediction and influencing factors of formation and injected water in Huabei Oilfield

YOU Jing¹, WANG Zhikun², YU Jiliang¹, ZHANG Chao², SUN Shuangqing², HU Songqing²

1. Research Institute of Oil Production Engineering, PetroChina Huabei Oilfield Company, Renqiu 062552, Hebei, China;
2. College of Science, China University of Petroleum(East China), Qingdao 266580, Shandong, China

Received:2017-03-15 Revised:2017-05-06 Online:2017-07-21 Published:2017-07-21

摘要/Abstract

摘要： 在注水开发过程中，油层或采出系统结垢会大大影响生产效率。开展地层水与注入水结垢规律和机理研究，可对现场除垢技术提供理论指导。采用Davis-Stiff饱和指数法和Ryznar稳定指数法，对华北油田京11区块地层水和注入水在不同温度、pH和成垢离子质量浓度等影响因素下的结垢趋势进行了预测，同时开展静态结垢实验研究了模拟水样的结垢规律。结果表明：华北油田京11区块地层水和注入水的离子组成和质量浓度非常接近且均具有严重的结垢趋势，且地层水的结垢趋势略高于注入水，垢样主要为碳酸钙；模拟水样的实际结垢率可达61%；温度、pH以及成垢离子质量浓度的升高均能大幅提高模拟水样的结垢率，结垢率的增长幅度随温度和pH的升高逐渐增大，而随成垢离子质量浓度的升高逐渐减小。

关键词: 成岩作用, 浊沸石胶结, 次生溶孔, 优质储层, 储层分布, 龙凤山地区

Abstract: During water flooding development,scaling of oil layer or production system would greatly affect the production efficiency. Studying the scaling rule and mechanism of formation and injected water could provide theoretical guidance for field descaling technology. Davis-Stiff saturation index method and Ryznar stability index method were used to predict the scaling tendency of the formation and injected water of Jing-11 block in Huabei Oilfield under different temperatures,pH values and concentrations of scaling ions,and the scale rules were investigated by the static scaling test. The results show that the components and concentration of the formation and injected water samples are quite close to each other,both water samples have serious scaling tendency,and the scaling tendency of formation water is slightly higher than that of injected water. In addition,the scale sample of Jing-11 block is mainly composed of calcium carbonate. The scale formation ratio of simulated water sam-ple is 61% under normal conditions,and it can be highly increased by raising temperature,pH and concentration of scaling ions. The increase rate of the scale formation ratio increases by the temperature and pH,but decreases by the concentration of the scaling ions in the solution.

Key words: diagenesis, laumontite cementation, secondary dissolved pores, high-quality reservoirs, reservoir distribution, Longfengshan area

中图分类号:

TE39

游靖, 王志坤, 余吉良, 张超, 孙霜青, 胡松青. 华北油田地层水与注入水结垢趋势预测及影响因素[J]. 岩性油气藏, 2017, 29(4): 162–168.

YOU Jing, WANG Zhikun, YU Jiliang, ZHANG Chao, SUN Shuangqing, HU Songqing. Scaling tendency prediction and influencing factors of formation and injected water in Huabei Oilfield[J]. Lithologic Reservoirs, 2017, 29(4): 162–168.

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华北油田地层水与注入水结垢趋势预测及影响因素

Scaling tendency prediction and influencing factors of formation and injected water in Huabei Oilfield

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