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| 新型高温井井下控制阀的研制与应用 | |
| 引用本文： | 胡义,李啸南,尚跃强,逯国成,黄侠,崔晓霖.新型高温井井下控制阀的研制与应用[J].石油机械,2005,33(7):41-42. |
| 作者姓名： | 胡义 李啸南 尚跃强 逯国成 黄侠 崔晓霖 |
| 作者单位： | 1. 胜利油田有限公司孤岛采油厂 2. 胜利油田有限公司采油工艺研究院 3. 胜利油田有限公司东辛采油厂 |
| 基金项目： | 中国石油天然气集团公司科技攻关课题“胜利超稠油开采新技术试验研究”(课题编号:KG95035)中的研究成果。 |
| 摘 要： | 针对稠油注汽热采井中,压井液、洗井液进入地层使井下温度降低,造成转抽后开井困难;转抽前井内压力释放不彻底,易发生井喷或外溢等情况,研制了新型高温井井下控制阀。该阀的创新点:(1)采用齿轮齿条传动机构把管柱的直线运动变为阀球旋转运动,使阀球的开关更灵活,由锁爪、弹簧和支撑环组成的锁紧机构牢靠,不受阀球上下压差的影响;(2)球面金属密封在高温高压下密封性好;(3)阀球内通径大,打开后阀球通道与管柱同心,成为流体流动的畅通通道;(4)提放管柱开关球阀操作方便,可用于注汽热采井、直井、非热采井和大斜度井。 |
| 关 键 词： | 热采井 井下控制阀 结构特点 |
| 修稿时间： | 2005年1月12日 |
Downhole switch valve for high-temperature wells |
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| Hu Yi.Downhole switch valve for high-temperature wells[J].China Petroleum Machinery,2005,33(7):41-42. | |
| Authors: | Hu Yi |
| Abstract: | To solve the problem of well fluid overflow in heavy oil thermal recovery wells, a novel downhole switch valve is developed. The characteristics of this valve lie in: (1) the valve ball can be opened and closed flexibly by using the rack-gear transmission mechanism, and the locking mechanism comprised of locking claw and spring and supporting ring is reliable and is not influenced by the pressure differential on the valve ball; (2) the metal seal of the valve ball surface seals well at high temperature and high pressure; (3) the valve ball has large internal diameter and provides a smooth flow passage for the well fluid; (4) the ball valve can be switched conveniently in pulling and lowering the string. |
| Keywords: | thermal recovery well downhole switch valve structural characteristic |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
