Puguang Gas Field Surface Gathering System Blockage Reason Analysis And Plugging Measures Research

Puguang gas field production, the existence of a relatively serious flow congestionproblems, this article from the blockage blockage blockage, composition and formationreasons for the three aspects were analyzed, and through the experiment about blockingformula and the other blocking measure research. Through on-site jam situationinvestigation analysis, given the Puguang gas field surface gathering system blockageposition focused on acid separator mist collector, metering separator drainage pipelines,instruments, valves and throttle or pipeline aperture stenosis position. Through the analysis,given the Puguang gas field surface gathering system blockage is mainly composed ofelemental sulfur, salt scale (FeS, CaSiO3, CaSO4and CaCO3) and a small amount oforganic matter. In each single agent (DMDS, DEA and MDEA) blocking performance testbased on compound formed, Puguang gas field surface gathering system blockage todissolved sulfur mainly plugging formula. In the blocking agent formula formed the basis,forming a blocking agent, electric heat tracing, strengthen the residual acid flowback,timely monitoring of sand flushing, optimization and improvement of transportationequipment and strengthen the daily management supplemented by a comprehensiveblocking measures.