CAJ | 학술논문

针对常规无油管有杆泵采油存在的杆柱下行困难,造成杆柱受压弯曲、偏磨等问题,通过分析液力反馈泵无油管采油抽油杆柱在抽油机上、下冲程中的受力状况,建立了液力反馈泵杆柱力学分析模型.基于该模型,结合油井生产系统优化设计技术,分析了液力反馈泵无油管采油生产系统运行中冲程、泵径、原油黏度等主要因素对悬点载荷的影响,得出了该工艺抽汲参数选择的一般规律.通过实例计算与常规抽油泵进行了对比分析,结果表明:液力反馈泵在杆柱受力、抽油机的扭矩功率以及杆柱疲劳强度等方面均可有效改善油井工况指标,从而提高了无油管采油工艺的适用性,改善了油田开发效益.
침대상규무유관유간빙채유존재적간주하행곤난,조성간주수압만곡、편마등문제,통과분석액력반궤빙무유관채유추유간주재추유궤상、하충정중적수력상황,건립료액력반궤빙간주역학분석모형.기우해모형,결합유정생산계통우화설계기술,분석료액력반궤빙무유관채유생산계통운행중충정、빙경、원유점도등주요인소대현점재하적영향,득출료해공예추급삼수선택적일반규률.통과실례계산여상규추유빙진행료대비분석,결과표명:액력반궤빙재간주수력、추유궤적뉴구공솔이급간주피로강도등방면균가유효개선유정공황지표,종이제고료무유관채유공예적괄용성,개선료유전개발효익.
In view of the problems of roof bolt down-pass difficulty existing in traditional beam pump production with tubingless production system,the stress situation of oil pumping roof bolt of hydraulic feedback pump in the up and down-pass is analyzed,and the roof bolt dynamics analysis model of hydraulic feedback pump is set up.Based on the model and optimization design technology of production system,the major influencing factors of system operation including stroke,pump diameter and oil viscosity is analyzed,and the general law of pumping parameter selection of this technology is obtained.The contrasting analysis with traditional pump is carried out through practical example,hydraulic feedback pump stress in roof bolt,torque power of pumping unit and the roof bolt fatigue intensity etc.may all well improve operational mode index.Also,it can improve the economic level of oilfield production.