STUDY OF THE COMPATIBILITY OF A DRILLING FLUID FORMULATED IN A MICROEMULSIONED SYSTEM WITH CEMENT SLURRY
Journal: INTERNATIONAL JOURNAL OF RESEARCH -GRANTHAALAYAH (Vol.8, No. 3)Publication Date: 2020-03-31
Authors : Giovanna Laís R. Leal; Fabíola D. S. Curbelo; Alfredo Ismael C. Garnica; Raphael R. Silva; Tarsila M. Tertuliano; Júlio César O. Freitas; Evanice M. Paiva;
Page : 1-9
Keywords : Microemulsion; Drilling Fluid; Cement Slurry; Compatibility.;
Abstract
In the cementing operation, it is necessary that the entire circumference of the annular is filled by the cement slurry and that it develops adhesion to the casing and formation. For this, an efficient removal of the drilling fluid is necessary, which requires that its chemical composition is compatible with that of the cement slurry. The objective of this work is to formulate a drilling fluid in a micro emulsified system and test its compatibility with the cement slurry to assess the effects that an unwanted contamination can have on the properties of the slurry. In the compatibility test, the rheological properties and the compressive strength of cement slurry contaminated with drilling fluid in different volumetric proportions were evaluated. The compressive strength of the cement slurry was determined, and the loads that the paste supports were checked. The compatibility test showed no visual changes in the properties of the slurry, although, after the addition of the drilling fluid, there was a decrease in the compressive strength.
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