Based on the low pressure of the coal bed gas well, the sand removal technology by mechanical sand fishing is put forward.

根据煤层气井的低压特点，提出了通过机械捞砂来清砂的技术。

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Test shows that the sand removal technology solves the sand-containing problems perfectly in produced liquid in surface gathering transfering system.

试验表明该除砂技术较为完善地解决了地面集输系统由于原油采出液中含砂造成的危害。

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The integrated assembly with sand removal and washing in crude oil gathering system designed by the Exploitation and Design Institute of Dagang Oilfield Group is up to the sand removal rate of 90%…

介绍大港油田集团勘察设计研究院研制的原油集输系统除砂洗砂一体化装置，经试验除砂率达到90％以上。

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Restoring the water-retaining capacity of hydro-electric dams by regular dredging and sand and silt removal is the only way left before the authorities.

FORBES: What Investors Need To Know About Clean Tech In India

Even though the expenses for regular sand and silt removal from dams would be enormous, it is the only available option left before the authorities to keep dams fully functional.

FORBES: What Investors Need To Know About Clean Tech In India

No production from the mine is expected this year after the federal Mine Safety and Health Administration ordered the Silver Shaft to be closed for removal of built-up sand and concrete material.

FORBES: Hecla Officials Anticipate Clean-Up Of Mine Shaft Can Begin In Few Weeks