Mechanical Analysis And Peristaltic Study Of Multi-stage And Multi-stage Water Injection Pipe Columns

Subdivided water injection can effectively improve oilfield development and recovery,and to some extent meet the mining needs of different reservoir geology.During the on-site operation,due to the unreasonable column structure and the accurate analysis of the three-dimensional mechanical behavior of the multi-stage and multi-stage water injection pipe column,the working tools are seriously worn,the operation period is shortened,and the success rate of water injection in the subdivided layer is reduced.Therefore,it is necessary to comprehensively consider the influence of three-dimensional wellbore and working tools of multi-stage multi-stage water injection pipe column,scientifically establish a three-dimensional mechanical model of multi-stage multi-stage water injection pipe column,accurately study the mechanical properties of multi-stage multi-stage water injection pipe column,and then rationally design multi-level Multi-stage water injection pipe column structure to improve the success rate of water injection operation and oilfield development and recovery.Based on the research status of water injection column mechanics and the research status of water injection technology,this paper comprehensively considers the buoyancy,contact force,friction force,internal and external pressure,wellbore curvature and column structure of multi-stage and multi-stage water injection pipe columns.Based on the influence of tools,a three-dimensional mechanical analysis model of multi-stage multi-stage water injection pipe column was established.The creep mechanism of multi-stage and multi-stage water injection pipe creep behavior was studied by analyzing the packer creep model.The mechanics of the water injection pipe column under peristaltic state was analyzed.Behavior,the calculation method of multi-stage multi-stage water injection pipe creep distance is proposed.Combined with the actual field operation of the oilfield,taking the example well of Shengli Oilfield as an example,the creeping change of the water injection pipe column under actual working conditions was calculated,and the parameters such as water injection pressure,throttling pressure difference and water injection temperature were studied for multi-stage multi-stage water injection pipe.The influence of the column creep distance.Based on the research of three-dimensional mechanical model of multi-stage multi-stage water injection pipe column,using C# language,a set of three-dimensional simulation of collecting shaft string,simulation simulation and optimization design of pipetting tool,dynamic analysis of pipe column mechanics and data management are developed.Multi-stage and multi-stage water injection pipe mechanical simulation simulation software,and analyze the mechanical behavior of the pipe string for the case well in Shengli Oilfield.It provides a multi-stage multi-stage water injection pipe column for the field researchers and reasonable application of multi-stage multi-stage water injection pipe anti-creeping measures.Strong technical support.