The present invention relates to methods for controlling the migration of particulates, such as proppant and formation sands, from subterranean formations using solutions of tackifying materials. One embodiment of the present invention provides a method of treating a subterranean formation comprising the steps of placing a tackifying composition into the subterranean formation and then placing an after-flush fluid into the subterranean formation.

Methods for controlling migration of particulates in a subterranean formation

Provided are methods of using fluid loss control additives that comprise a water-soluble polymer with hydrophobic or hydrophilic modification. In one embodiment, a method of providing at least some degree of fluid loss control during a subterranean treatment is provided. In an example of such a method, the method may comprise providing a treatment fluid comprising an aqueous liquid and a fluid loss control additive, the fluid loss control additive comprising a water-soluble polymer with hydrophobic or hydrophilic modification; and introducing the treatment fluid into a well bore that penetrates a subterranean formation, wherein there is at least a partial reduction in fluid loss into at least a portion of the subterranean formation from the treatment fluid and/or another aqueous fluid introduced into well bore subsequent to the treatment fluid.

Methods useful for controlling fluid loss in subterranean formations

The present invention relates to methods useful during sand control operations and, more particularly, to using water-soluble relative permeability modifiers that are useful for controlling fluid loss during sand control operations. In one embodiment, the present invention provides a method of providing fluid loss control during sand control operations comprising introducing a fluid that comprises a water-soluble relative permeability modifier into a well bore; and stabilizing unconsolidated formation particulates in a section of a subterranean formation penetrated by the well bore. In other embodiments, the present invention provides methods of providing fluid loss control during sand control operations and methods of reducing fluid loss from carrier fluids used in sand control operations.

Methods useful for controlling fluid loss during sand control operations

The present invention relates to subterranean treatment fluids, and more particularly, the present invention relates to subterranean treatment fluids comprising relative permeability modifiers and methods for using such subterranean treatment fluids in subterranean operations to reduce the production of water from and stimulate hydrocarbon production in a subterranean formation. In certain embodiments, the methods of the present invention generally comprise the steps of providing a permeability-modifying aqueous treatment fluid comprising a relative permeability modifier and contacting a subterranean formation with the permeability-modifying aqueous treatment fluid. Optionally, the permeability-modifying aqueous treatment fluid may be injected in the subterranean formation at a pressure sufficient to create or enhance at least one fracture therein. In another embodiment, the methods of the present invention further comprise the step of injecting an acidizing treatment into the subterranean formation. In another embodiment, the relative permeability modifier may be provided by appropriate reaction in situ.

Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation

Methods for stabilizing portions of a subterranean formation and controlling the production of water from those subterranean formations. In one embodiment, the methods of the present invention comprise: providing a consolidating agent; introducing the consolidating agent into an unconsolidated portion of a subterranean formation using a fluid diversion tool; allowing the consolidating agent to at least partially consolidate the unconsolidated portion of the subterranean formation; providing a relative permeability modifier; introducing the relative permeability modifier into the subterranean formation using a fluid diversion tool; and allowing the relative permeability modifier to modify the relative permeability of at least a portion of the subterranean formation.

Methods of controlling sand and water production in subterranean zones

THIS INVENTION IS CONCERNED WITH MONOETHYLENICALLY UNSATURATED ACID ESTER MONOMERS, SUCH AS THOSE OF ACRYLIC OR METHACRYLIC ACID, CONTAINING A BIS-QUATERNARY AMMONIUM HALIDE GROUP, SUCH AS ONE OF THE FORMULA CH2=C(-R)-COO-A-N(+)(-R0)(-R1)-CH2-CH=CH-CH2-N(+)(-R2) (-R3)-R4 X(-) Y(-) R BEING H OR METHYL, A BEING (C2-C6)ALKYLENE, R* BEING LOWER ALKYL, R'' BEING LOWER ALKYL, R2 BEING LOWER ALKYL, R3 BEING LOWER ALKYL, R4 BEING LOWER ALKYL, X BEING AN ANION, AND Y BEING AN ANION. IT IS ALSO CONCERNED WITH ADDITION POLYMERS OF SUCH MONOMRS, AND METHODS OF PRODUCING THE MONOMERS AND POLYMERS. THE MONOMERS AND POLYMERS ARE REASONABLY STABLE AT BOTH ALKALINE AND ACID PH VALUES UNDER NORMAL TEMPERATURE AND PRESSURE CONDITIONS ALTHOUGH CAPABLE OF REACTING WITH OTHER REACTANTS AT THE POINT OF UNSATURATION IN THE ALKENYL LINKAGE BETWEEN THE TWO QUATERNARY NITROGEN GROUPS. THE INVENTION ALSO CONCERNS THE USE OF THESE MONOMERS AND POLYMERS AS ANTISTATIC AGENTS FOR TEXTILES AND OTHER ARTICLES FORMED OF HYDROPHOBIC MATERIALS, AS WET-STRENGTH AGENTS IN MAKING PAPER AND AS ELECTROCONDUCTIVE AIDS IN MAKING OF VARIOUS ELECTROCONDUCTIVE PAPERS FOR ELECTROSTATIC IMAGE REPRODUCTION SYSTEMS.

Travis E Stevens

Papers

Unsaturated quaternary monomers and polymers