CEMENTING TECHNOLOGY FOR HIGH PRESSURED ADJUSTMENT WELL IN GUDONG OILFIELD

Studies were conducted aiming to solve the cementing technical problems in high pressured adjustment wells in Gudong Oilfield,and some efficient measures were concluded.Study showed that the external casing packer can effectively prevent oil and gas channeling during and after cementing,while early strength cement slurry can effectively improve the early strength;by combining use of the ECP and early strength cement slurry system,cementing quality of high pressured adjustment wells can be remarkably improved.The study provided a new method of adjustment well cementing.