Development Of The New Gas Condensate Drilling Fluid

Gas condensate Drilling Fluid based on oil as continuous phase,it has electricity stability,the plastic Viscosity is low, low fluid loss, With the advantage of high shale inhibition,anti-high temperature,with anti-cuttings contaminated,anti-water contaminated performance,excellent lubricating properties,strong and good reservoir protection characteristics. Waterfree gas condensate drilling fluids help to improve the rate of penetration,wellbore stabilityand reservoir protective effect. It can be used to easily collapse formation, salt bed, special inthe water phase activity large difference formation, low pressure formations and deepwaterdrilling.At present it has become the important drilling means for many High difficult Wells,such as, High Temperature Deep Well, Large Angle Deviated Well, Horizontal Well andvarious of complex formation. We track the developments of international latest technology inthis paper, and we have launched indoor on oil Base Drilling Fluid technology systematically.First of all, we have studied Holo-oil Base Drilling Fluid evaluation test method on thebasis of access to domestic and foreign literature,Secondly, based on analyzing the basiccomponents and performance adjusting mechanism of Holo-oil Base Drilling Fluid,According to the formation mechanism of the emulsifier and the deficiency of the oil-basedrilling fluid performance at present,the performance is good for optimization in the oil-basedrilling fluid oil-base drilling fluid with emulsifier and the performance evaluation. we haveoptimized treatment agent for Holo-oil Base Drilling Fluid by indoor method, and confirmedthe best added amount of the main treatment agent. Meanwhile,we have carried out a lot ofindoor research work of Holo-oil Base Drilling Fluid formed by foundation formula. Thus wecan easily conclude that the relevant research results laid a solid theoretical foundation forfurther research on domestic Holo-oil Base Drilling Fluid technology on field test, and waterfree oil-based drilling fluid system has great application value and potential.