NOVEL STRONTIUM CARBONATE BRIDGING MATERIALS AND METHODS FOR MAKING AND USING SAME

摘要

Drilling fluids were developed including a base fluid, a weighting agent and/or a bridging agent, and a thickening agent, where the weighting agent and/or the bridging agent includes a particulate strontium carbonate having a desired distribution, for weighting agents, the distribution includes particles between 2μ and 5000μ and for bridging agents, the distribution is constructed from particles having specific sizes. Methods making and using the drilling fluids were also discovered.

主权项

1. A drilling fluid composition comprising:
a base fluid, a thickening system, and a weighting and/or bridging system comprising an effective amount of a strontium carbonate particles having a size between 2 μm and 5000 μm and a first particle size distribution.