鄂尔多斯盆地古生界气藏具有低渗、低压、低产的特点,酸化压裂技术作为低渗气田勘探开发关键技术,为实现气田高效勘探开发起到了重大促进作用。以长庆气田上、下古生界储层改造技术为着眼点,总结回顾长庆油田酸化压裂研究与矿场试验成果,阐述了具有长庆特色的古生界气层酸化、压裂工艺主体技术,并提出酸化压裂工艺技术发展方向。 The Paleozoic gas reservoirs in the Ordos Basin are characterized by low permeability, low pressure and low production. Acid fracturing technology, as a key technology in the exploration and development of low permeability gas fields, has played a significant role in promoting the exploration and development of the gas field. This paper reviews the research on the acid fracturing and the field test in Changqing Oilfield, focusing on the Paleozoic reservoir reformation technology in the Changqing gas field, and elaborates the Paleozoic stratigraphic acidification and fracturing technology with Changqing characteristics The main technology, and put forward the development of acid fracturing technology direction.