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以地层中含硫化氢的高温高压复杂井——元坝×井为研究对象,针对该井射孔中存在的技术难点,从射孔工艺方案设计、井下射孔器材选取、器材试验、施工过程控制等方面进行阐述。采用普通油管输送式射孔工艺,套管加压起爆方式,外加的起爆压力设计为14～15MPa;起爆器和射孔枪满足高温高压施工环境要求,爆破器材全部选用超高温炸药,射孔弹装药PYX,导爆索、传爆管和起爆器火工件都装填HNS炸药;合理控制施工重点工序。可为安全优质施工提供技术保障。
Taking the high temperature and high pressure complex well containing hydrogen sulphide in the stratum as well as the Yuanba × well as the research object, according to the technical difficulties existing in perforation of the well, the design of perforation technology, the selection of underground perforation equipment, equipment testing, construction process Control and other aspects of elaboration. Using ordinary tubing delivery perforating process, casing pressurized priming mode, plus the design of the initiation pressure of 14 ~ 15MPa; detonator and perforating gun to meet the high temperature and pressure construction environment requirements, blasting equipment selection of all ultra-high temperature explosives, Charges PYX, detonating cord, blast tube and detonator fire parts are filled with HNS explosives; reasonable control of the construction of key processes. For safe and quality construction to provide technical support.