This running-in operation involved many procedural steps and high technical requirements, with strict demands on cable protection, running-in speed, synchronous monitoring, and wellhead sealing control. During the operation, all crews on site worked in close coordination under unified command, feeding the cable smoothly in strict accordance with operating procedures and tightly controlling the running-in speed to prevent the cable from being squeezed, bent or scratched, while steadily handling the risk of sticking points encountered midway. Through the continuous efforts of the on-site personnel, the heating cable was run in place smoothly in a single attempt; wellhead sealing and anchoring were completed simultaneously, and the electrical parameters re-measured were stable and up to standard. This marks the success of the open-type injection device independently developed by Jiuli Petroleum.