86787381
Oct 14, 2015
Non-metallic industrial minerals for use as a drilling fluid additive; Non-metallic industrial minerals for use in well drilling and completion in the oil and gas industry; Non-metallic industrial mineral blends as a drilling aid for use in the oil and gas industry; Non-metallic industrial minerals for use in well drilling and completion; Non-metallic industrial minerals used for the extraction of hydrocarbon from the earth; Non-metallic industrial mineral additives and agents used for fluid-loss control, density modifiers all used for the extraction of hydrocarbon from the earth; barite used for the extraction of hydrocarbon from the earth; Non-metallic industrial minerals used for drilling and cementing in the energy field; barite; barium sulfate
Chemicals