Porous fe304 drilling mud additive

Details Porous fe304 drilling mud additive Porous fe304 drilling mud additive

C - Chemistry, Metallurgy

09

K

31/33, 252/35

C09K 8/54 (2006.01) C01G 49/08 (2006.01)

Patent

CA 1047243

ABSTRACT OF THE DISCLOSURE An iron oxide having the ideal compositon Fe3O4 has a unique high poros- ity, substantially spherical particle structure. Used in oil and gas well drilling muds, it scavenges hydrogen sulfide. It also improves the rheological properties of the mud, maintains its stability under high temperatures, and functions as a mud weighting material. Upon completion of drilling, the drill- ing mud containing the porous Fe3O4 additive may be left in place between the inner casing and the formation wall or the outer casing as a packer fluid.

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