Abstract
To satisfy the requirement on solid-liquid separation in high-density waste drilling mud, prepare the nano-modified polyacrylamide(PAM) flocculant for high density waste drilling mud by in-situ dispersion method, direct dispersion method and simultaneous formation method. The result showed the flocculent effect of nano-modified polyacrylamide prepared by simultaneous formation method was the best. When the content of water glass and acrylamide(AM) were respectively 3% and 15% , reaction temperature was 60?C and reaction time was 3h, the performance of product was the best. The water content in filter cake was 24.32% after the waste drilling mud disposed by the optimization flocculant. The flocculent effect of optimization flocculant was superior to that of other flocculant in market.
Highlights
The waste drilling fluids was the inevitable industrial waste while Oil and Gas exploration drilling
The optimum conditions for preparing nanomodified polyacrylamide prepared by simultaneous formation method was obtained through orthogonal experiments
(1) Nano-modified Cation polyacrylamide (CPAM) flocculant prepared by in-situ dispersion method
Summary
The waste drilling fluids was the inevitable industrial waste while Oil and Gas exploration drilling. It had become one of the most severe pollution sources, whose effect on environment has been concerned gradually [1,2,3]. There were many methods [4,5,6] to dispose the waste drilling mud and drilling wastewater. The solidliquid separation [7] was the most important and widely application method. The flocculant in market had not deal with the high density waste drilling mud. A new nano-modified polyacrylamide flocculant for high density waste drilling mud was prepared
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