Research And Application Of Heavy Oil Thermal Recovery Wells Overhaul Technology

With the deepening of oil field development,Liaohe Oilfield, production wells and injection wells, the damaging has become more and more serious damage, And directly affects the output of the oil fields, on the middle class, so study "sets loss" causes and "casing damage" mechanism, taking active and effective preventive measures,Taking to improve the management of a reasonable repair process, The "casing damage" to restore the original production capacity of wells is a serious problem, In response to this status, raising A heavy oil thermal recovery wells technology, Topics include the mechanism of casing damage and a series of well casing damage repair complex production technology research and application.Considering Liaohe oil field of the characteristics and researching a number of repair complex production technologies, Including the casing Premium accessec technology Plastic casing of hydraulic technology, Chase Drive Coupling casing without reinforcement Completion Technology,Electric submersible pump and cable salvage Development Milling Tools,Thermal recovery side drilling and milling small bins salvage Development Tools,and so on. These technologies will be set to make up for losses in the shallow wells drilled Sidetracking costly status,It can be used in shallow wells casing damage, Also applies to the casing damage in deep wells. They are not only able to meet the thermal recovery of the production wells,Sidetracking with fenestration, Compared to check for casing,low cost Relatively,Shorter cycle,Can not play well update,Side of the case of drilling development wells to improve the underground network. Field test to prove, Indeed these technologies are able to cater for the actual situation of Liaohe Oilfield, resumption of some sets of loss effective due to serious and stop the production of oil wells, Liaohe Oilfield, the latter is the production well casing failure to address the issue of resumption of production of an effective, economic, and technology applicable workover.