Methods of consolidating incompetent subterranean formations using aqueous treating solutions
AssigneeHalliburton Company
InventorsBuddy W. Anderson, Bobby K. Bowles, Joseph R. Murphey, Kenneth D. Totty, Bill M. Young
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Abstract
Methods of consolidating incompetent subterranean formations are provided whereby aqueous treating solutions are utilized to condition the formation, to carry a hardenable organic consolidating fluid into the formation and/or to carry particulated solids coated with a hardenable organic consolidating fluid into the formation and to cause the organic consolidating fluid to harden whereby a hard permeable mass is formed in the formation which prevents the undesirable movement of loose or incompetent sands therein.
Claims93
A method of consolidating loose or incompetent sands in a formation penetrated by a well bore comprising the steps of:
- contacting said formation with an aqueous preflush solution to condition said formation for the acceptance of a hardenable organic consolidating fluid capable of coating sand in an aqueous environment;
- contacting said formation with said hardenable organic consolidating fluid so that at least a portion of said loose or incompetent sands are coated thereby;
- contacting said formation with a spacer solution so that said hardenable organic consolidating fluid is distributed therein;
- and
- causing said consolidating fluid to harden thereby forming a hard permeable mass in said formation.
A method of consolidating loose or incompetent sands in a formation penetrated by a well bore comprising the steps of:
- contacting said formation with an aqueous preflush solution to condition said formation for the acceptance of a hardenable organic consolidating fluid capable of coating sand in an aqueous environment;
- placing a quantity of particulated solids coated with said hardenable organic consolidating fluid into contact with said formation so that upon the hardening of said consolidating fluid a hard permeable pack is formed between said formation and said well bore;
- contacting said formation with said hardenable organic consolidating fluid so that at least a portion of said loose or incompetent sands are coated thereby;
- contacting said formation with a spacer solution so that said hardenable organic consolidating fluid is distributed therein;
- and
- causing said consolidating fluid to harden thereby forming said hard permeable pack between said formation and said well bore and a hard permeable mass in said formation.
A method of consolidating loose or incompetent sands in a formation penetrated by a well bore comprising the steps of:
- contacting said formation with an aqueous preflush solution to condition said formation for the acceptance of a hardenable organic consolidating fluid capable of coating sand in an aqueous environment;
- contacting said formation with said hardenable organic consolidating fluid so that at least a portion of loose or incompetent sands are coated thereby;
- contacting said formation with a liquid hydrocarbon spacer solution so that said hardenable organic consolidating fluid is distributed therein;
- and
- causing said consolidating fluid to harden thereby forming a hard permeable mass in said formation.
A method of consolidating loose or incompetent sands in a formation penetrated by a well bore comprising the steps of:
- contacting said formation with an aqueous preflush solution to condition said formation for the acceptance of a hardenable organic consolidating fluid capable of coating sand in an aqueous environment;
- placing a quantity of particulated solids coated with said hardenable organic consolidating fluid into contact with said formation so that upon the hardening of said consolidating fluid a hard permeable pack is formed between said formation and said well bore;
- contacting said formation with said hardenable organic consolidating fluid so that at least a portion of said loose or incompetent sands are coated thereby;
- contacting said formation with a liquid hydrocarbon spacer solution so that said hardenable organic consolidating fluid is distributed therein;
- and
- causing said consolidating fluid to harden thereby forming a hard permeable pack between said formation and said well bore and forming a hard permeable mass in said formation.
Dependencies are inferred from the claim text.