The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 1978
Filed:
Dec. 23, 1976
Bobby G Harnsberger, Houston, TX (US);
Texaco Inc., New York, NY (US);
Abstract
Method for the treatment of unconsolidated sandy formations to stabilize such formation comprising the sequential steps of: 1. Injecting a liquid hydrocarbon containing a minor amount of a water wetting nonionic surface active agent and, from about 0.5 to about 3% of water, into said formation to remove any excess water present therein without completely drying the sand, or optionally to water wet an essentially water free sand formation; 2. Injecting a first treating solution or suspension composed of from about 3 to 20% by volume of a inorganic silicon halide and 80 to 97% by volume of hydrocarbon solvent into the sand formation being consolidated; 3. Injecting a liquid hydrocarbon into said sand formation to effect removal of any excess inorganic silicon halide from the area being consolidated; 4. Injecting a second treating solution composed of from about 3 to about 20% by volume of furfuryl alcohol and from about 80 to about 97% by volume of a high in aromatics (80% or more) petroleum fraction, optionally including from about 0.5 to about 1.5% by volume of a silane bonding agent, into said formation and contacting the first treated sand formation with said second treating solution; 5. Maintaining said inorganic silicon halide and said furfuryl alcohol components of said first and second treating solutions in contact with said sand to be consolidated for a period sufficient to polymerize said components and form an oil permeable but sand impermeable barrier therein.