环空压力特性曲线 APR
动态环空压力控制 DAPC
环空压力损失 pressure loss in annular
随钻环空压力测量 APWD
动态环空压力控制系统 DAPC
随钻环空压力监测 APWD
环空压力测量 APWD
随钻环空压力 APWD
随钻井底环空压力测量 APWD
Basing on the small annulus pressure，lightweight string，packer operation difficult of ultra-shallow well layer test，the paper analyzes all kinds of testing tools' features and designed a set of testing process technology to test tool performance，column structure，and working system.
针对超浅井地层测试中因环空压力小、管柱重量轻、封隔器坐封难、开关井操作难的问题，分析了各测试工具的性能特点，设计出一套解决测试工具性能、管柱结构和工作制度的超浅井地层测试工艺技术。 认为计算好封隔器所需钻压及油管、钻杆数量，保证封隔器坐封严密，减少开关井次数是测试成功的关键。
参考来源 - 大庆油田浅井地层测试工艺浅议—《价值工程》—2010年第36期—龙源期刊网·2,447,543篇论文数据，部分数据来源于NoteExpress
研究表明，利用环空压力变化可以有效监测井眼清洁程度。
Experimental and theoretical research has improved that hole cleaning detecting is efficient by monitoring annular pressure change.
钻压、扭矩、侧向力、环空压力等钻井工程参数可以随钻进行测试。
It can measure drilling engineering parameter, such as drilling pressure, torque, side pressure and annular pressure etc.
可以在地面通过环空压力下达指令，以便同时或选择性地触发取样器。
Samplers can be actuated simultaneously or selectively using surface commands via annular pressure.
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