Investigation of the usability of graphite in drilling mud

In this thesis study; The effect of adding graphite to drilling mud on the rheological properties of drilling mud was investigated. For this purpose, drilling mud prepared by adding graphite in powder form at different concentrations (0.1%-2%) to the water-based drilling mud formed from a mixture of bentonite, caustic and water; PV, AV, YP, gel strength, filtration loss, cake thickness, pH and density analyzes were analyzed according to American Petroleum Institute (API) standards. At the end of the study, the apparent viscosity of the drilling mud in the ground state is 38 seconds, plastic viscosity 10 cp, breaking point 13, gel strength 11, filtration loss (100bar / 7.5 minutes) 30 ml, cake thickness (100bar / 7.5 minutes) 1mm, pH 13 , the particle size is measured as 0.1 mm. When the rheological properties of drilling mud prepared in the range of 0.1% to 2% are examined, the pH is constant 13, the apparent viscosity is from 0.1% to 1.2% for 38 seconds, from 1.2% to 1%, It has been measured that up to 8 is 39 seconds, and in the range of 1.8% to 2%, the apparent viscosity is 40 seconds.The plastic viscosity of the drilling mud with powder graphite added in the range of 0.1% to 2% was measured as 10 cP.YP in drilling mud with powder graphite added in the range of 0.1% to 2%,13 in the range of 0.1% to 1.3%,14 in the range of 1.3% to 1.8%, It was measured as 15 in the range of 1.8% to 2%.The filtration loss (100bar/ 7.5 minutes) of drilling mud with powder graphite added in the range of 0.1% to 2% was measured as 30 ml.The cake thickness (100bar/ 7.5 minutes) of drilling mud with 0.1% to 2% powdered graphite was measured as 1mm. The particle size of the drilling mud with 0.1%-2% powdered graphite was measured as 0.1 mm. There was no measurable effect on the density in the range of 0.1%-2%. Experimental results give similar results with each other. Accordingly, it has a positive effect in terms of increasing the apparent viscosity, increasing the plastic viscosity, increasing the HP and gel strength values.