1) underbalance perforating
负压射孔
1.
In order to protect reservoir,save time and cost,through optimization study,the once completion craft of oil tube transmission underbalance perforating was adopted in completion.
雅轮凝析气田是一个富含凝析油的深层凝析气藏,为做好储层保护工作,同时节约时间和成本,通过优化研究,在完井时,采用油管传输负压射孔一次完井工艺。
2) negative pressure perforation
负压射孔
1.
Study and Application of Combination Technology of Negative Pressure Perforation
负压射孔联作工艺的研究与应用
2.
This paper discusses the improvement of perforation technology such as pressure primer detonator,negative pressure perforation mode,secondary passage,and perforation mode optimization.
对射孔工艺中的压力起爆器、负压射孔方式、传爆通道改进和射孔方式的优化进行了探讨,提出了增加孔密、防砂射孔、复合射孔和超正压射孔等优化射孔的思路和方法。
3) negative excess pore pressure
超静负孔压
1.
Typical example of multi\|stage excavation is analyzed to study the negative excess pore pressures and the consolidation effects on the soil displacements during and after excavation.
本文将 Biot固结有限元法用于饱和软粘土地基深基坑性状的研究 ,通过典型算例分析了土体超静负孔压的分布及分步开挖工程中的固结效应 ,阐述了开挖速率的影响。
4) negative excess pore water pressure
负超静孔压
1.
Excavation will induce negative excess pore water pressure in soft soil.
研究了基坑开挖卸载情况下坑底和周围土体中负超静孔压的消散规律,并利用固结理论和有效应力原理推导了由于开挖引起的超静孔压计算公式和坑底回弹变形计算公式。
5) perforation pressure differential
射孔压差
6) Over pressure perforating
过压射孔
补充资料：下射
1.射手中地位较低者。 2.射箭成绩在下者。 3.向下射。
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