论文部分内容阅读
研究了应用稠油出砂冷采技术对地层原油含有溶解气的各类疏松砂岩稠油油藏进行冷采 ,以获得较高的原油产量的技术 .施工中对稠油井采用强力射孔技术和设计精良的螺杆泵系统 ,通过以砂带油方式开采稠油 ,实现稠油冷采 ;在河南油田得了较好的效果 .单井产量一般可达 3～ 5 0 t/d,是常规降压开采的数十倍至数百倍 ,日产油比蒸汽吞吐提高 1～ 3倍 ,采收率一般可达 8%～ 2 0 % .稠油出砂冷采技术对地层原油中含有溶解气的疏松砂岩稠油油藏具有广泛的适应性 .将出砂冷采技术应用于低周期蒸汽吞吐井中 ,进一步拓宽了稠油出砂冷采技术应用领域
This paper studied the technology of heavy oil sand production and cold extraction on various types of unconsolidated sandstone heavy oil reservoirs with cold storage in order to obtain higher crude oil production.During the construction of heavy oil wells using powerful perforation technology and Well-designed screw pump system, by heavy oil recovery by belt oil, to achieve heavy oil cold mining in Henan oil field has been a better effect. Single well production generally up to 3 ~ 5 0 t / d, is the conventional buck Mining several times to several hundred times, daily production of oil increased by 1 to 3 times than the steam huff, oil recovery generally up to 8% ~ 20%. Heavy oil sand production technology for the formation of crude oil containing dissolved gas loose The sandstone heavy oil reservoir has a wide range of adaptability. The application of sand production and cold extraction technology to low-cycle steam stimulation wells further widens the application field of heavy oil sand production and cold extraction