Experience of the Autonomous Inflow Control Devices Application at theOil-Gas-Condensate Field to Control Early Gas Breakthroughs

摘要

Development of oil rims at oil-gas-condensate fields is accompanied by a high risk of gas coning whichleads to well productivity losses followed by conversion of such wells to an idle stock.In order to increasethe oil recovery factor of oil rims and to eliminate early gas breakthroughs,horizontal wells drilled in thinoil rims are equipped with autonomous inflow control system.The study describes the experience of AICD application for one of the largest fields in East Siberia withan oil rim and a large gas cap,where an integrated analysis of the AICD well performance was conductedfor the first time in Russia.This analysis includes:choosing well-candidates,performing AICD lab testing,sector reservoir simulation,modeling of AICD effect,followed by the actual well performance analysisafter running AICDs.All this became possible due to the well-organized cooperative work of the operatorand the contractor.The wells included in this study were successfully put into production at lower GOR values comparedto their surrounding wells.