天然气井负压诱喷及完井工艺技术

Technique of Induced Flow by Negative Pressure and Well Completion in Natural Gas Well

采用负压开孔装置建立新型作业模式,在不下测试阀、不借助气举等外力诱喷条件下,自造负压实现一趟管柱完成负压射孔、诱喷和放喷求产等多项作业,缩短了作业时间,节省了作业成本,提高了作业的安全性。根据天然气井开采的自身特点,有针对性的研究适合天然气开发的工艺技术,达到保护储层、安全、清洁、经济、高效开发天然气井的目的。

Utilizing perforated device by under-balance pressure to create new operating mode,on condition of outer power to induce flow without lowering testing valve and gas lift,many operations of under-balance perforating,induced flow and production with open flow by one set of testing string have been realized by man made negative pressure,that shortens operating time,lows cost,and raises safety.According to self characteristic of natural gas well exploitation,researching on tech of it in accordance,the objective of protecting reservoir and exploiting natural gas well safely,cleanly,economically and efficiently is achieved.