| With soaring oil production plant Lei thin oil block area of horizontal wells, inclined, with high water wells, wells and other types of low-yield wells increasing, there is one major problem pipe rod pumped wells partial wear has become troubled oil producing rod. In this paper, the mechanism of the tube and rod eccentric wear, Lei region block light oil well rod and tubing wear causes were analyzed to determine the main factors influencing the rod and tubing mill. In this paper, solid lubrication technology, solid lubricant film forming method to study, get a stable and reliable quality of solid lubricant film; now considering the advantages and disadvantages of using the device sucker, sucker preferred tool. This paper established a well sucker rod pumping fluid in the outer wall of the pressure distribution mathematical model, given the appropriate numerical methods, analysis and distribution of pressure; The formula given degree dogleg; Mathematical model and point locations and corresponding numerical methods are given; Given vertical wells and inclined deflection formulas; Eccentric wear mechanism of wells is calculated by stress analysis and dogleg, sucker rod deflection analysis and numerical methods are given anti-eccentric wear well optimized; Analyze the effects of different liquid production, water content and inclination of the high angle wells eccentric wear.On the basis of theoretical research on the rod force is calculated by formula and rod deflection and eccentric wear numerical optimization methods based on well prepared defenses "Well sucker optimal design" Program. The program in Chinese Windows2000 operating system to Visual Basic 6.0 development platform for writing done with the Basic language, including the calculation of the normal force, calculate the degree dogleg, the point position and eccentric wear and optimization of four modules. The program can meet the needs of field production, and good maneuverability. |
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