Prevention and Solutions for Freezing and Blocking of Natural Gas Gathering Project in Winter

The reasons to cause freezing and blocking phenomenon of natural gas gathering project in winter were analyzed,appropriate measures were put forward.Through summarizing adjustment methods of methanol injection pipes and equipments,methanol injection plan was determined by the calculation software of methanol dosage,so prevention work for freezing and blocking of natural gas gathering project in winter was finished.The specific measures of thawing and the method of stable proration can ensure normal production,safe and stable gas supply of gas wells.