D rilling mud is an importan material in a drilling opertation because it can effect the safty, efficiency, speed of drilling and drilling costs. In order to funtion properly, then the sludge should be controlled physical properties, which include: mud weight, viscosity, and rate of power for strainer. Aspect of the formation to be drilled, such as: state formation, rock formation, and fluid content contained in this formation should also be observed. Planning of drilling mud to be used in a drilling work very determine success or failure. Along with its fast technological growth of mud drilling in this time, found many type of drilling mud which have different characteristic one with other, as effect progressively expand the additive which can be utilized to take care the stability of drilling mud at every deepness. In drilling technology also recognize the use of polymer mud which basicly the inclusive of in mud system with elementary substance irrigate (salt water). This system ave the better natures from other water base system. Superiority of this polymer because this system have the nature of good rheology. His purpose in doing sisitem testing two different systems, namely non dispersion and dispersion of drilling mud system is one of them to be able to differentiate into two systems of which one is better if there is drilling wells in a formation which is influenced by the presence of water contamination salt and high temperatures. With the analysis of trials of different systems is the system of non dispersion and dispersion in the system can also be expected to know and mud system determine which of the two properties are suitable / feasible to use in a well of drilling activity, by comparing its with the specifications in the mud that has been set in the laboratory drilling mud.