Based on the low pressure of the coal bed gas well, the sandremoval 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。
2
Test shows that the sandremoval 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。
3
The integrated assembly with sandremoval and washing in crude oil gathering system designed by the Exploitation and Design Institute of Dagang Oilfield Group is up to the sandremoval rate of 90%…