论文部分内容阅读
注氮气开发油田是20世纪70年代发展起来的新的油田开发技术,美国和加拿大对不同的油藏进行了注氮气开发,处于世界领先地位。我国自89年起开展了应用氮气提高稠油油藏开采效果的研究,在辽河油田、胜利油田、新疆油田等典型稠油油藏进行注氮气改善蒸汽吞吐效果的研究和现场试验。我公司在2005年引进了美国NPU900型橇装式注氮设备,在克拉玛依稠油油田开展了规模注氮工艺,以氮气辅助蒸汽吞吐,解决油藏开发后期能量不足、蒸汽超覆、汽窜以及油层动用不均的开采矛盾,达到最终提高采收率的目的。
Nitrogen gas development Oilfield development is a new oilfield development technology developed in the 1970s. The United States and Canada have conducted nitrogen injection development of different reservoirs and are in a leading position in the world. Since 1989, China has carried out research on increasing the production of heavy oil reservoirs by applying nitrogen gas. The research on the effect of nitrogen injection on steam huff and puff in a typical heavy oil reservoir such as Liaohe Oilfield, Shengli Oilfield and Xinjiang Oilfield to improve the steam huff and puff in the field has been carried out. In 2005, our company introduced the NPU900 skid-mounted nitrogen injection equipment in the United States and carried out a large-scale nitrogen injection process in the Karamay heavy oil field. Nitrogen-assisted steam huff and puff was used to solve the problems of insufficient energy, steam overrun, The exploitation of uneven exploitation of oil reservoirs contradicts the purpose of ultimately increasing oil recovery.