A. H. Sinclair Jr.
Engineering at Elm Cir, Katy, TX
License number
Louisiana PE.0008323
Issued Date
Apr 10, 1962
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
3021 E Elm Cir, Katy, TX 77493
Professional information
Injection Molded Degradable Casing Perforation Ball Sealers Fluid Loss Additive And Method Of Use
US Patent:
6380138, Apr 30, 2002
Filed:
Nov 22, 1999
Appl. No.:
09/444901
Inventors:
Noel David Ischy - Tyler TX
Craig Steven Fox - Rockwall TX
A. Richard Sinclair - Katy TX
Craig Steven Fox - Rockwall TX
A. Richard Sinclair - Katy TX
Assignee:
Fairmount Minerals Ltd. - Chardon OH
International Classification:
E21B 3313
US Classification:
507204, 507219, 507239, 166294
Abstract:
A degradable compound, which may be used as a ball sealer and as an fluid loss additive for use in the oil and gas industry is disclosed. The compound comprises a particular composition of matter and injection molding technique that provides a ball sealer which will dissolve in stimulation or wellbore fluids after stimulation operations are complete. In a similar manner the compound may be used as a fluid loss additive which enhances the fracture filter cake and will dissolve completely after use in fracturing operations. Used as a ball sealer, the surface of the ball sealer softens slightly assuring a solid seal between the ball and the casing perforation. The pure composition when dissolved into wellbore fluids does not pose a hazard and has excellent dispersion in aqueous based wellbore fluids. The same composition, may be combined with fiber-glass to manufacture a high temperature ball sealer.
Downhole Chemical Delivery System For Oil And Gas Wells
US Patent:
6279656, Aug 28, 2001
Filed:
Nov 3, 1999
Appl. No.:
9/433178
Inventors:
A. Richard Sinclair - Katy TX
S. Byron Smith - Houston TX
S. Byron Smith - Houston TX
Assignee:
Santrol, Inc. - Fresno TX
International Classification:
E21B 4300
US Classification:
166310
Abstract:
The invention is the method of treating of a well, a formation, or both, with the solids, liquids, or apparatuses, by 1) encasing the solids, liquids, or apparatuses in a water-soluble shell, 2) conveying the encased solids, liquids, or gases to the predetermined location in the well, and then 3) allowing the water-soluble shell to dissolve in the aqueous phase in the wellbore. The shell is preferably made of water-soluble polymers such as collagen, a crosslinking agent such as zolidine, optionally a hydrophobic compound such as a processed oil, and water used in processing. Other modifying or conditioning compounds, for example glycerin and other polymeric additives, may be incorporated to extend the strength or temperature range of the shell. The shell encases a variety of solids, liquids, or combinations thereof, where the solids or liquids are useful in the treatment of the well or of the producing formation. Illustrative encased material includes soap, acid, corrosion inhibitors, chelating agents, scale inhibitors, mutual solvents, paraffin inhibitors, paraffin dissolvers, clay stabilizers, and tracer materials.