INTEGRATION PREVENTION TECHNIQUE OF TUBING DAMAGE IN SHENGLI OILFIELD

Aimed at the serious status of tubing damage in Shengli oilfield, the paper researched the styles, characters and mechanics of tubing damage, and built the united and perfect tubing damage prevention technique system. It perfected the tubing damage prevention and protection systematic technique from whole process of well drilling, completion, cementing and development, formed the main tubing repairing technique, as expanding trimmer, exploding lifting, channeling, tube reinforcing, tube exchanging and sidetrack drilling, and tubing testing systematic technique. Through the site application, partial tubing damage wells enabled to produce in time in Shengli Oilfield, and the increasing trend of tubing damage was effectively prohibited. It’s clearly acknowledged that the tubing damage problems of old field can be effectively solved by building the suitable tubing damage integrated prevention methods for various reservoirs’ styles, different development stages and modes, as well as insisting on prevention and combining research, prevention and cure.