1979年,子长试采队的到来,打破了秀延河往日的宁静,河水和两岸村庄开始沸腾起来。秀延河两岸埋藏的工业血液一一石油,也被逐渐发现,子长县大规模的石油勘探也在此时正式拉开了帷幕,延长油田股份有限公司子长采油厂给坐落在秀延河边的小村庄闫家枣林,带来了现代的繁荣和生机,成为秀延河畔上的一颗璀璨明珠。1979年,子油人组建了子长试采 In 1979, the sub-head trial mining team arrival, breaking the quiet of the Sau Yanh, the river and the two sides of the village began to boil. Oil from the two sides of the Yan River, one by one, has also been gradually discovered. The large-scale oil exploration in Zichang County was officially opened at this time. The extension of the oil production plant of the sub-head of the Oilfield Co., The edge of the village of jujube Yan Yan, has brought the prosperity and vitality of the modern, as a shining pearl on the Yan River. In 1979, the sub-oil people set up a sub-test