The Development Of Metal Hydroxide Ultrafine Particles For Drilling Fluid

Nano material is the floorboard of the material which consisted of ultrafine particles that size smaller than 100nm(1-100nm),nanotechnology is the intersection of science and technology across many fields.Nowadays,nano-materias science has been widely used in the actual scientific research,technological production,and daily life,Nanomaterials have been reflected in the eco-environmental protection,aerospace,information industry,have a broad application space and a bright future.Nano-ultrafine particulate material used in the drilling fluid has some scientific basis,because the part of the part of the clay particals which in the drilling fluid is in the nanometer and sub-micron range.Ultrafine particulate material in the drilling fluid has been some successes.Such as MMH drilling fluid,it uses an inorganic electropositive nano-materials with strong adsorbing water ability,can effectively inhibit the cuttings dispersion to prevent the expansion of the shale hydration,stabilize the borehole wall and protect the reservoir,and the material and montmorillonite can be formed with unique rheological properties of drilling fluid system has a special shear thinning characteristics,a substantial increase drilling efficiency.However,there are shortcomings in the MMH drilling fluid,the fluid loss excessive.Therefore,the ultrafine particulate material used in the drilling fluid needs further in-depth study.A large number of domestic and foreign literature are accessd as a theoretical reference In this paper,different particle size of the drilling fluid with ultra-fine particles were prepared in laboratory,there particle size measured by the particle size analyzer and other advanced equipment,drilling fluid properties were tested under their respective fluid performance evaluation criteria,to explore the law of the ultrafine partical size on the performance impact of drilling fluid and found that the ultrafine particles when the configuration of drilling fluid material particle size about 9-12μm,fluid performance is best equal to the particle size of the particle size and the base slurry clay,give full play to the nano characteristics.Try a different particle size of ultrafine particle size distribution of the preparation of the drilling fluid,an optimized gradation program.