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Home  >  Volume 46 (May, 2018)

36. IMPROVING THE RHEOLOGICAL PROPERTIES OF DRILLING FLUID USING ORGANIC POLYMER (SWEET POTATO;Ipomoea Batatas) by Ohenhen I., Igbinere S.A. and Gimba A.S.B. Volume 46 (May, 2018 Issue), pp269 –272
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IMPROVING THE RHEOLOGICAL PROPERTIES OF DRILLING FLUID USING ORGANIC POLYMER (SWEET POTATO; Ipomoea Batatas)

Ohenhen I. , Igbinere S.A. and Gimba A.S.B.

Department of Petroleum Engineering, University of Benin.

Department of Petroleum and Gas Engineering, Nile University of Nigeria

Abstract

Drilling muds are complex fluids, generally used to clean the well, maintain hole integrity, transport the rock cuttings, lubricate the drill bit and control formation pressures. Drilling operation is enhanced by the application of drilling mud. The three major types of drilling mud, mostly used in drilling operations, are water based drilling mud, oil based drilling mud, and synthetic based drilling mud. This study focuses on the suitability of locally processed potato starch as a viscosifier. In this experiment, the mud samples were formulated in the absence and presence of various concentrations of potato starch. The production method of the mud and the determination of its rheological properties were carried out based on the API mud production standards. Comparative analysis of properties obtained from the prepared potato starch mud and that formulated from carboxymethyl cellulose (CMC) were carried out. Results from this investigation showed that rheological properties (plastic viscosity and yield point) of the potato starch mud increased when the content of both viscosifiers were equal at 1.5g/500ml of water. Plastic viscosity also increased when potato starch concentration increased. The potato starch additive improved the rheological properties of the drilling mud and can be used effectively as a viscosifier.

Keywords: Drilling Fluid, Potato starch and Viscosifiers.

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