关键词: 连续管, 带压作业, 试油工艺, 低渗透储层, 非常规油气

Abstract: Conventional oil tubing testing service has a long period of operation and a high intensity of labor. Coiled tugging service has a number of advantages, such as without moving the production string, snubbing, less service equipment, short service time and cost-effective. The company has developed a complete set of coiled tubing testing processes and equipment, including wellbore preparations for new wells.These preparations provide a clean and safe environment for lateron service. Cementing quality inspection after well completion provides technological support for perforation and layered fracturing services. Accurate perforation of straight well, channeling of horizons and perforation of the first segment of horizontal well provide channels for transmission by fracturing pump. The tested reservoir sealed with pressure is brought under layered fracturing stimulation. In the wake of fracturing service, the compound bridge plug is removed to restore the full path of wellbore and reduce flowing friction. In the process of production, the layers are tested one by one to acquire the relative data of each horizon, such as temperature, pressure, flow and water cut. Field application indicated that coiled tubing testing process can effectively reduce oil testing period, improve service efficiency, lower the risks for safety and the environment and accelerate the exploration and development process of low-permeability and non-conventional reservoirs.