Drilling fluid additive, emulsifier, to improve the properties of a reverse emulsion and methods for drilling a well in an underground formation.In order to improve or facilitate the emulsification of a drilling fluid, and to improve the filtering properties and electrical stability of a drilling fluid

摘要

"Drilling fluid additive, emulsifier, to improve the properties of a reverse emulsion and methods for drilling a well in an underground formation.In order to improve or facilitate the emulsification of a drilling fluid, and to improve the filtering properties and stability of a electric drilling fluid.A method and a product are exposed, which confer the emulsion stability and control of filtration, the drilling fluids of the inverted emulsion.The product consists of a mixture of a carboxylic acid terminated polyamide and / or a wetting agent and a reaction product or mixture produced by the Diels alder reaction of dienu00f3filThe, preferably carboxylic acids, polycarboxylic acids, acid anhydrides, or combinations or mixtures thereof with a mixture of fatty acids and resin acids.The product of the invention and extremely effective, decreasing in approximately two-thirds the amount of emulsifier generally required to formulate an effective drilling fluid.The product of the reaction also greatly reduces, and in many cases, eliminates the need for conventional fluid loss additives, and provide, additional mode, electric stability.In addition, the product of the reaction has a point of leakage as low as around 20 degrees Fahrenheit (- 6.6 198 C) with minimum solvent.Thus eliminating the need for shipment of large quantities of inert material for use, and can be transported in a highly active.