gravel packing

基本解释

Productivity Ratio(PR) is firstly put forward to evaluate the effect of gravel-packing sand control measure on gas well productivity.
提出了以防砂产能比作为防砂措施对气井产能造成影响的评价指标。
Packing can be made from wide range of commercial and home made materials-steel, wool, wood chips, coke, gravel etc. Gas is passed through bottom and removed at top.
包装可从商业和自家做的各种材料，钢材，羊毛，木屑，焦炭，砾石等气体是通过底部和顶部删除。
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Incipient motion of solid grain in solid-liquid two\phase flow is often concerned in many petroleum technologies, such as horizontal drilling, gravel-packing and sand washing.
水平井钻井、砾石充填及冲砂等作业都涉及到固液两相流动的固体颗粒起动问题。