Control Technique Of Condensate Gas Hydrate Blockage

This paper is to support the Jilin Oilfield Company production and scientific research project based on the research achievements of Jilin oilfield,the condensate gas well in the process of developing the gas hydrate freeze engineering problems blocking,wax and other mining,carried out to determine the type of condensate gas reservoir,which provides basis for development plan.At the same time through condensate gas phase state,the inflow/outflow dynamic prediction,dynamic production analysis,established the prediction theory and method for condensate gas reservoir formation dynamic new.Investigation of the hydrate blockage mechanism,at the same time,the kinetics of hydrate formation are analyzed,and on the basis of theory research,prediction software platform using hydrate formation,further understanding and grasp of natural gas hydrate,and the prediction of gas,gas hydrate formation in Yingtai into.At the same time analyzed hydrate inhibitor molecule design and experiment,the formation of hydrate inhibitor VL/AM+Span60 for condensate gas well,and also do some research on the inhibition effect of compatibility evaluation experiment,the inhibitor has good compatibility,and the inhibitory effect is better than that of PVP and other conventional kinetic inhibitor.Selected JL-C-1 type plugging agent,the paraffin agent has the advantages of low cost,high efficiency and other characteristics,application effect is good.The above research results have been applied to the Jilin oilfield,Changchun gas field gas,condensate gas well,the effective of hydrate prediction,generating system optimization,lifted the hydrate freeze plugging,wax block,guarantee the smooth test,gas production,the development engineering technology field security role.