Study on the downhole permanent low frequency pulsating water injection techniqu
- 出版年：2009
- 作者：WANG Zhiming；QI henlin；XUE Liang
- 单位1：College of Petroleum and Gas Engineering，China University of Petroleum
- 职称：Protessor
- 语种：中文
- 作者关键词：waterflood under the condition of pressure fl u ctuation；preventing plugging and augmented injection；energy accumulator with ballonet；pressure control valve；eccentric injection mandrel
- 起始页：6
- 总页数：4
- 经费资助：Study on the downhole permanent low frequency pulsating water injection system Project of innovation group of Ministry of Education of the People’s Republic of China（IR T411）
- 刊名：石油钻采工艺
- 是否内版：否
- 刊频：双月刊
- 创刊时间：1979
- 主管单位：中国石油天然气集团公司
- 主办单位：华北油田分公司；华北石油管理局
- 主编：董范
- 地址：河北任丘华北油田采油工艺研究院
- 邮编：062552
- 电子信箱：cyy_bjb@petrochina.com.cn;syzc@vip.163.com
- 网址：www.syzcgy.cn
- 卷：31
- 期：1
- 期刊索取号：P714.06 432
- 数据库收录：中文核心期刊、中国科技核心期刊；中国科学引文数据库来源期刊；中国学术期刊（中英文版）收录；中国科技论文统计源期刊；中国期刊全文数据库（CJFDWG）全文收录；俄罗斯文摘杂志收录；美国化学文摘收录；美国剑桥科技文摘收录；美国石油文摘收录；中国石油天然气集团优秀期刊
- 核心期刊：中文核心期刊、中国科技核心期刊
摘要
Waterflood technique with pressure fluctuation，e specially with low，ultra low frequency，changes the continuous water flow into the fl o w with pressure fluctuation，and can prevent contamination precipitation，formation plugging and Jamin effect. It als o can prevent the plugging of water injection well，decrease the pressure of waterflood and increase the rate of water injection. On the basis of the existing eccentric injection mandrel， used the energy storage character of air energy accumulator and the pressurc switch character of pressure control valve，fi x ed the plunger valve for pressure control on the position of blanking plug，t hen developed one new injcction mandrel with low frequency character，w hich can inject water continuously with low，u ltra low frequency. Water fl u ctuation produced during the water injection affect the formation directly and is useful to break down， prevent plugging and augment injection.