Hydraulic diversion systems to enhance matrix treatments and methods for using same

A method for diverting well treatments comprising:

• forming a diversion layer or a plurality of diversion layers on a formation surface, an interval surface, a plurality of interval surfaces, on well screen assembly, a gravel pack, and/or a sand pack associated with a formation or interval surface, or between the formation or interval surface and a production tubing or working string, where the formation, interval or intervals including high permeability zones and where one or more of the high permeability zones have a permeability greater than 100 mD, where the layer or layers comprise at least one erodible or dissolvable component and at least one removable component and have an effective permeability between about 1 mD and about 100 mD so that the entire surface or surfaces of the formation, the interval, or the intervals have the same or substantially the same effective permeability,
• pumping a treating fluid into the well, and
• diverting the treating fluid as it passes through the layer or layers having the effective permeability into the formation, the interval, or the intervals improving coverage, uniformity, and/or completeness of treatment across the formation, the interval, or the intervals, and where after the treating fluid passes through the diversion layer or layers, the erodible or dissolvable components erode or dissolve in contact with well fluids or erode or dissolve by exposing the diversion layer or layers to a dissolving fluid, and the removable components are removed by exposing the diversion layer or layers to a removing fluid restoring the original permeabilities of the formation, the interval, or the intervals.

A system for diverting well treatments comprising:

• a source subsystem including a filter cake composition including sized, selectively erodible or dissolvable particles and removable particles capable of forming a predictable low permeability filter-cake;
• a filter-cake placement subsystem for engineered placement of the filter-cake composition to create a predictable low permeability filter-cake on a surface of a producing formation, interval, or intervals, on a surface of an injection formation, interval, or intervals, in an annular space between the formation or interval surfaces and production tubing surface, on a surface of a screen assembly, on a surface of a gravel and/or on a surface of a sand pack, where the formation, interval or intervals includes high permeability zones and where one or more of the high permeability zones have a permeability greater than 100 mD, where the filter-cake composition is placed using a Newtonian fluid or a non-Newtonian fluid, where the filter cake has an effective permeability between about 1 mD and about 100 mD equalizing or substantially equalizing permeabilities across the formation, interval or intervals;
• and
• an injection subsystem for injecting a treating fluid into the formation, interval or intervals, through the filter cake having the effective permeability improving coverage, uniformity, and/or completeness of treatment across the formation, the interval, or the intervals, where after the treating fluid passes through the filter cake, the erodible or dissolvable particles erode or dissolve in contact with well fluids or erode or dissolve by exposing the filter cake to a dissolving fluid and the removable particles are removed by exposing the filter cake to a removing fluid restoring the original permeabilities of the formation, the interval, or the intervals,
• wherein the well treatments for producing wells are selected from the group consisting of a sand control treatment, an aggregating treatment, a zeta modifying treatment, a sticky/tacky material treatment, a sand consolidation/formation consolidation treatment, an in situ polymerizable formation consolidate treatment, a scale inhibitor treatment, a paraffin inhibitor treatment, a wettability modifier treatment, a biocide treatment, a gel breaker treatment, an enzyme treatment, a defoamer treatment, an acid treatment, and mixtures or combinations thereof, and where the well treatments for injection wells are selected from the group consisting of a surfactant treatment and a polymer flooding treatment.