1) downhole shut-in
井下关井
2) downhole switching valve
井下开关
1.
HPHT downhole switching valve is developed.
研制的高温高压井下开关可在注汽时打开注汽通道;油井作业时关闭注汽通道。
3) means of shut in well
井下关井工具
1.
Reasonab ly use the means of shut in well is premise ensur e high quality well testing achievem ent.
井下关井是煤层气注入压降试井的重要环节之一,井下关井工具的合理使用,是确保高质量试井成果的前提,针对不同的地层条件及施工情况使用不同种类的关井工具并辅以正确的操作方法,能有效降低试井的风险性,提高试井的成功率并获得高质量、高精度的试井曲线。
4) Underground well
井下矿井
5) underground
[英]['ʌndəɡraund] [美]['ʌndɚ,ɡraʊnd]
井下
1.
On the Rectification and Strengthening of Underground Safety of Non-coal Mines;
论非煤矿山的井下安全整治
2.
Treatment of underground outer source fire of coal mine;
煤矿井下外源火灾的处理
3.
Danger analysis and management technology for underground working place of Chengchao iron mine;
程潮铁矿井下作业场所危险分析及管理技术
6) downhole
['daun,həul]
井下
1.
Research and shop tests of the downhole casing shut-off valve;
井下套管阀研究及室内试验
2.
Theory design of downhole ultrasonic focusing system;
井下超声聚焦系统的理论设计
3.
Preliminary approach to oil production through downhole oil-water separation technique.;
井下油水分离采油技术初探
补充资料：下关市
见大理市。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条