초록 ▼

A method of winning oil from a source via a bored well, wherein a magnetorheological fluid is introduced into the source via the bored well to reduce the water content of the oil won. Oil drilling is resumed in the presence of a magnetic field, thereby increasing the oil yield and/or decreasing the

A method of winning oil from a source via a bored well, wherein a magnetorheological fluid is introduced into the source via the bored well to reduce the water content of the oil won. Oil drilling is resumed in the presence of a magnetic field, thereby increasing the oil yield and/or decreasing the water content of the drilled oil.

대표청구항 ▼

What is claimed is: 1. A method of winning oil from a source via a bored well comprising the steps of: disposing a sealing fluid comprising a magnetorheological liquid, into one or more porous strata; providing a magnetic field to increase the viscosity of said magnetorheological fluid, such that t

What is claimed is: 1. A method of winning oil from a source via a bored well comprising the steps of: disposing a sealing fluid comprising a magnetorheological liquid, into one or more porous strata; providing a magnetic field to increase the viscosity of said magnetorheological fluid, such that the porous strata is at least partially obstructed; and breaking at least a portion of at least one of the oil-bearing porous stratum. 2. The method according to claim 1, wherein the step of diposing a sealing fluid comprises introducing magnetorheological fluid as an aqueous magnetorheological fluid. 3. The method according to claim 1, wherein the step of diposing a sealing fluid comprises disposing a sealing fluid comprising magnetorheological fluid that further comprises a setting component which sets in the presence of the applied magnetic field. 4. The method according to claim 3, wherein the step of disposing a sealing fluid comprises disposing a sealing fluid comprising magnetorheological fluid which further comprises a setting component, wherein said setting component comprises a cross-linkable polymer, which in the presence of the applied magnetic field undergoes a cross-linking reaction causing the magnetorheological fluid to set. 5. The method according to claim 1, wherein the magnetorheological fluid comprises 5-50% by volume of magnetic or magnetisable particles. 6. The method according to claim 5, wherein the magnetic or magnetisable particles are chosen from the group consisting of magnetite, iron/cobalt and vanadium alloys, and combinations thereof. 7. The method according to claim 1, further comprising the step of introducing an acid after the application of the magnetic field to increase the porosity of the oil-bearing statum.