3M™ Glass Bubbles HGS4000 have a density of 0.38 g/cc and an isostatic crush strength of 4,000 psi. The HGS series glass bubbles are designed for low-density drilling fluids and cements used in the oil and gas industry.
HGS4000 Glass Bubbles are designed for use in drilling, completion, and workover fluids, as well as in cement slurries in the oil and gas industry. HGS4000 are well-suited for use in shallow to intermediate depth wells.
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