Research On Stratified Injection And Production Process Column In Heavy Oil Reservoir

Heavy oil reservoir has been into the middle and late period, in order to further enhance, carrying out a variety of new technology, the field of application of new technology, to adapt to the new situation demands, the Drilling Tools Institute of Liaohe for the current application development the steam flooding stratified steam injection, SAGD and other new technologies independently developed concentric steam drive process. The successful development of this series of technologies for steam flooding technology smoothly is to provide technical support.For the problem of original string in new technology and new technology applications, during the study of concentric steam flooding pipe, on the basis of corresponding calculations and the theoretical study, considering the fact of production, we designed corresponding tools. In the final to apt no only the demand of new technology but also to meet the site requirements for regular jobs, to be simple, safe and practical. In the development process of the string, it is also a whole new technology and new technology starting in order to reduce the cost of duplicate construction, tiered steam injection, steam drive process in concentric string applications simultaneously developed concentric steam flooding steam injection wellhead means to achieve the amount of floor steam injection controlled dynamically adjusted.For heavy oil formations viscosity, alternative mixing light oil and electric heating lifting process to achieve low temperature transport, the exploitation of heavy oil viscosity reduction and energy-saving new technology enables the formation viscosity, wellbore lifting, transporting cryogenic systems integration projects. Design related tools and machining prototype:the study design wellbore medicine mixing tool, to break the routine use of chemical reducing agent and heavy through free diffusion, mixing slowly to reach the goal, but accelerated down the wellbore through hybrid instruments mixing speed between the agent and the heavy, quickly reached emulsion viscosity effects. Solve outstanding problems mixing light oil and electric heating technology in Liaohe heavy lifting in the production process to be solved.Through the result of site requirement, it has been seen that during the large-scale application of steam flooding technology, heavy oil reservoir stratified injection and production process column is bound to get broad application prospects, bring enormous social and economic benefits.