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哈萨克斯坦共和国最大的油田乌津油田属于大型的西—北—西走向短轴背斜构造,由一系列局部隆起和穹隆组成。乌津油田采用块状和面积注水系统注水及点状注水进行开发,但非均质层动用极为不均衡,井迅速水淹,而低渗透层实际上没有得到开采。油田原油储量由于高产油藏超前动用而不断恶化。从1992年开始油田采油速度开始急剧下降。根据这种情况该油田采取了有效的产层增产措施。
The largest oil field in the Republic of Kazakhstan, the oilfield belongs to the large-scale West-North-West to short-axis anticline structure, which consists of a series of local uplift and domes. The Wujin oilfield was developed with water flooding and spot-like water flooding in massive and area flooding systems, but the use of heterogeneous strata was extremely uneven and the wells quickly flooded while the low permeability beds were practically not exploited. Oilfield crude oil reserves have been deteriorating due to advanced utilization of high-yielding reservoirs. Since 1992, the rate of oil recovery in oilfields has dropped sharply. According to this situation, the oilfield has taken effective production stimulation measures.