THE USE OF SIZED BARITE AS A WEIGHTING AGENT FOR DRILLING FLUIDS
专利汇可以提供THE USE OF SIZED BARITE AS A WEIGHTING AGENT FOR DRILLING FLUIDS专利检索，专利查询，专利分析的服务。并且An additive that increases the density of fluids used in a wellbore during the construction or repair of oil, gas, injection, water, or geothermal wells comprises a wellbore fluid containing a sized barite weighting agent that has an increased density with improved suspension stability without a significant viscosity increase. The wellbore fluid as described herein has rheological properties comparable to a conventional wellbore fluids but does not exhibit problems with sag and resulting variations in density. An illustrative embodiment of the claimed subject matter is further directed to a method for making the sized barite weighting agent and a method for using such sized barite weighting agent in a wellbore fluid. In one preferred embodiment the sized barite weighting agent has a particle diameter between 4 m to 15 m. In another preferred embodiment, the additive has a D50 (by weight) of approximately 1 m to 6 m. In another preferred embodiment the additive has a D90 (by weight) of approximately 4 m to 8 m. The additive may be used in any wellbore fluid such as drilling, cementing, completion, packing, work-over (repairing), stimulation, well killing, and spacer fluid.，下面是THE USE OF SIZED BARITE AS A WEIGHTING AGENT FOR DRILLING FLUIDS专利的具体信息内容。
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