Magnetized drive fluids

Details Magnetized drive fluids Magnetized drive fluids

E - Fixed Constructions

21

B

166/33

E21B 43/20 (2006.01) C09K 8/92 (2006.01) E21B 43/24 (2006.01)

Patent

CA 1217418

ABSTRACT OF THE DISCLOSURE A process as shown in Figure 2 for the re- covery of a fluid from a porous formation whereby fingering effects are controlled by applied magnetic field. The process comprises injecting a displacement fluid and ferrofluid, or a ferrofluid-containing dis- placement fluid, in an effective amount to displace fluid from the formation, applying a magnetic field containing a gradient of field intensity across said formation, driving the displaced fluid through the formation and recovering the displaced first fluid.

462698

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