Practice of horizontal well perforating technology in well Luojia 11H

Luojia Well 11H is the first well that is completed by perforation in Luojiazhai gas field with high gas production and high H₂S content. The article introduces the techniques for horizontal well perforation to use, including the conventional working string, the depth positioning method, the surface monitoring technique of perforation, the optimized program of perforating parameters, the orienting principle of perforating charge, the special design of the gun body etc. The operational difficulties and the optimized results of perforating parameters are analyzed for the technology to use in Weli Luojia 11H. The technology is applied to the well for perforation successfully and good productivity is achieved, which provides effective completion method by perforation to develop Luojiazhai gas reservoir with high H₂S content by the way of high quality and efficiency and safety.