The Technology Improve Of Directional Well Design Optimization

Directional well, directional cluster Wells and horizontal Wells is widely used in oildevelopment. Changqing oil field due to the low permeability formation, a large number ofusing cluster directional well. In these Wells, the application of sucker rod pump oil pumpingequipment production is a major way.This topic research, mainly used in the following two aspects, one is the parameters ofrod pumping system design and choice, also is the development of sucker rod pumping systemoptimization design method;The second is to develop the fault diagnosis of sucker rodpumping oil system technology.To design and selection of system parameters, the first thing to applied mechanicsanalysis method for prediction of sucker rod pumping system, namely the known pump systemand the working condition of downhole conditions, static and dynamic characteristics of eachpart of the system were analyzed, so as to achieve to design and selection of systemparameters, make the system work under the condition of the safe and economic. Developmentof sucker rod pumping system of fault diagnosis technology, is applied to the mechanicalanalysis of the existing system, the system of working condition diagnosis, according to thefault diagnosis results from system, make the system run under normal condition.Of vertical Wells, directional well and horizontal well at home and abroad, the steel pole,steel and glass fiber reinforced plastic mixing rod string design and fault diagnosis of suckerrod pumping system have certain research, the research is the start of the steel rod string invertical Wells, the research is more mature, in the oil field application is better also. On themechanical properties of directional well and horizontal well pole system research and theengineering application of the rod string design and fault diagnosis, is relatively small. This isalso needed to solve problems in engineering. This topic is carried out to solve these problems.Directional well has optimization design of rod pumping system and fault diagnosis, the key ison the system dynamic characteristics of the mechanical analysis, it involves three rod, tube,fluid system coupling vibration problems, quick and accurate calculation method in thenumerical calculation of choice, optimization methods and other issues.