The Study And Application Of Paraffin Emulsion In Drilling Fulid And Completion Fluid

With the development of world industry and the increase of the energy demand in the world,the effect of petroleum industry will more and more important. In order to exploit the limit oil resource,we must enhance the drilling technic. As the same time,the drilling fluid technic which take very important effect in driling face a new challenge. This demand oil operator exploit new drilling agent and content the high standard of drilling fluid agents.With the opinion of effective utilization of the paraffin resource and satisfying the demands of drilling work, the technic of paraffin emulsion was study. At the same time, we study the effect from emulsification time,emulsification temperature,mix speed, viscidity liquid, surface active agent to paraffin emulsion. Test granularity of paraffin emulsion with laser granularity equipment. After that, the effect of drilling fluid's density, filtration, HTHP filtration, rheology behavior, lubricate ability, inhibitive ability of the product has been evaluated.Experiments' result express: This new product shows higher lubricate ability and inhibitive ability than the traditional one. With 2.5% capacity, the adhere factor reduction rate is 50% and shale hydration reduction rate is 28%.This paraffin emulsion exhibit excellent application effect. I could as a good drilling fluid agent in drilling .