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自30井位于自流井构造东段,没有获气。该矿反复分析该井地质资料并与邻近气井的资料相比较后确认,该井经过做工作是能够见到效果的。为此,矿区钻井试油科和地质科在215试油队职工的密切配合下,在自30井的阳三_3～阳三_2 C层实施压裂酸化两次,无效果。后对阳三_4～阳三_2 B下盘进行高压酸化,挤入地层酸量达63m~3,泵压为52MPa。气井见微气。为了加快排液放喷速度,流通地层更多缝缝洞洞,现场人员采取了液氮助喷
Since the well 30 is located in the eastern section of artesian well, there is no gas. The mine repeatedly analyzes the geological data of the well and confirms with the data of adjacent gas wells that the well can do its work to see the result. For this reason, the drilling fluid test department and the geology department of the mine area have been fractured and acidified twice in Yangsan-3-Yangsan-2 C layer of well 30 with the close cooperation of workers in the 215 test crew. After Yang three _4 ~ Yang three _2 B under the plate acidification, squeeze into the formation of acid content of 63m ~ 3, pump pressure of 52MPa. Gas wells see micro-gas. In order to speed up the drainage jet speed, circulation stratum more seam hole, site personnel took the liquid nitrogen spray