| Abstract |
This paper discusses a laboratory investigation laboratories method of drilling fluid Visplex System with International Drilling Fluids (IDF) Specification. On this research bentonite from Indonesia is used Bentonite (Indoben Pre-hydrate) and The International Drilling Fluids laboratories used Wyoming Bentonite. Result of the research to be compared by International Drilling Fluids (IDF) specification rheological. Visplex viscosifier has been optimized from the original visplex product to enable it to be added to prehydrated bentonite Indoben, neat as a dry product. It should be noted however that the full rheologucal profile takes approcimately 20% longer to develop. Some shearing is preferable to facilitate the product to yield. The results of the research are: Bentonite: Visplex: Flopex=10:1:2 The rheological propertied, (1) density 8.65 ppg, (2) dial read 600 53.5, dial read 300 44, dial read 200 38.5, dial read 100 33, dial read 6 30, (3) plastic viscosity 9.5 cp, (4) yield point 34.5 lb/100 sq.ft., (6) filtrate volume 7.5/30 4.2 cc/8.8cc and mudcake 0.95 mm. |