Compositions for treating a well penetrating a subterranean formation and uses thereof
AssigneeBJ Services Company
InventorsQi Qu, Richard F. Stevens, Jr., David Alleman
Life of this patent
Estimating the term…
Abstract
Fluid producing wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted solid particulates, including pipe dope, asphaltenes and paraffins. Such emulsions are of particular applicability in the displacement of oil base drilling muds and/or residues from such muds from producing wells. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.
Claims14
A method of improving the permeability of a subterranean formation which comprises introducing into the formation a composition comprising a water-in-oil emulsion and an organophosphate dispersing agent, wherein unwanted particulates deposited in the formation are dissolved or loosened by the outer phase of the water-in-oil emulsion, thereby improving the permeability of the formation.
A method of improving the permeability of a subterranean formation which comprises introducing into the formation a composition comprising a water-in-oil emulsion, wherein the external phase of the emulsion is a hydrophobic organic solvent comprising at least one terpene, and further wherein the emulsion stimulates the formation by removing and/or inhibiting unwanted particulates from the formation which thereby improves the permeability of the formation.
A method of improving the permeability of a subterranean formation which comprises introducing into the formation a composition comprising a water-in-oil emulsion, wherein the outer phase of the water-in-oil emulsion is a hydrophobic solvent selected from the group consisting of d-limonene, 1-limonene, dipentene, myrcene, alpha-pinene, linalool and mixtures thereof and further wherein unwanted particulates deposited in the formation are dissolved or loosened by the outer phase of the water-in-oil emulsion, thereby improving the permeability of the formation.
Dependencies are inferred from the claim text.