Wells – Processes – Separating material entering well
Patent
1984-04-02
1985-10-01
Suchfield, George A.
Wells
Processes
Separating material entering well
166278, 166 751, 1663051, 252 855R, 252 855D, 366302, E21B 2100, E21B 4304, E21B 4340
Patent
active
045440328
ABSTRACT:
A method and apparatus for providing and treating a well with a viscosity-enhanced treatment liquid which will not clog perforations, gravel packs, filters and the like. A selected viscosity-enhancing agent in particle size is mixed in a selected well treatment liquid to produce a dispersion and the mixing continued at least until hydration is initiated to form an interface between the particles and the liquid. The liquid containing the interface is then subjected to a simultaneous mechanical and hydraulic shearing action by passage through axial apertures in a relatively rotatable rotor and stator units which are disposed in axial juxtaposition with a spacing between the adjacent rotor and stator surfaces selected to be less than the minor dimensions of the interface produced by the dispersion of the selected well treatment liquid and viscosity-enhancing agent. Such treatment results in a substantially complete dissolution of the viscosity enhancing particles in the well treatment liquid, thereby producing a "perfect" solution, and eliminates clogging of well perforations, gravel packs, filters, and the like.
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Baker Oil Tools, Inc.
Suchfield George A.
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