Method for treating wells

Claim 1

A METHOD FOR COMBATTING THE OBSTRUCTION OF GAS CIRCULATION IN DRILLING WELLS EMPLOYING GAS AS THE CIRCULATION MEDIUM WHEREIN THE OBSTRUCTION RESULTS FROM THE INGRESS OF EXTRANEOUS MATERIALS INTO THE WELL BORE, THE STEP COMPRISING INTRODUCING AN AQUEOUS SOLUTION CONTAINING A RESINFORMING COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF (A) ABOUT 1 TO 25 WEIGHT PERCENT OF A MONOMERIC ALKYLIDENE BISACRYLAMIDE OF THE FORMULA H2C=C(-R2)-CO-NH-CH(-R'')-NH-CO-C(-R2)=CH2 IN WHICH R''-CH< IS A HYDROCARBON RESIDUE OF AN ALDEHYDE CONTAINING FROM ABOUT 1 TO 10 CARBON ATOMS ANR R2 IS OF THE GROUP CONSISTING OF HYDROGEN AND METHYL, AND (B) ABOUT 75 TO 99 WEIGHT PERCENT OF ANOTHER ETHYLENIC MONOMER COPOLYMERIZABLE WITH (A), (C) CATALYTIC AMOUNTS OF AN OXIDIZING AGENT, AND (D) A SUFFICIENT AMOUNT OF CACL2 TO WEIGHT THE TUBING EXTENDING DOWNWARDLY IN THE WELL BORE BELOW THE UPPER LEVEL OF THE FORMATION OF INGRESS, CONTACTING A PORTION OF THE RESINOUS MATERIAL THROUGH THE TUBING TO FORM AN ANNULAR COLUMN OF RESINOUS MATERIAL COVERING THE FORMATION OF INGRESS IN THE ANNULAR SPACE PROVIDED BETWEEN THE TUBING AND THE PORTION OF THE FORMATION OF INGRESS EXPOSED IN THE WELL BORE, SIMULTANEOUSLY MAINTAINING THE UPER LEVEL OF THE ANNULAR RESINOUS MATERIAL AT LEAST TO COVER THE FORMATION TO BE SEALED, WHILE APPLYING PRESSURE TO THE RESINOUS MATERIAL REMAINING IN THE TUBING TO FORCE FORMATION SEALING IN THE AMOUNTS OF RESINOUS MATERIAL INTO THE PORTION OF THE FORMATION OF INGRESS EXPOSED IN THE WELL BORE REMOVING SAID TUBING FROM CONTACT WITH SID RESINOUS MATERIAL EMPLOYING AN ELECTRODE SYSTEM FOR ELECTRICALLY DISCHARGING TIN IONS TO SUBJECT THE RESINOUS MATERIAL IN THIS POSITION TO A TIN ION DOSAGE SUFFICIENT TO SOLIDIFY THE RESINOUS COMPOSITION, DRILLING THROUGH THE SOLIDIFIED RESIN, AND CONTAINING DRILLING WITH GAS CIRCULATION TO REMOVE CUTTINGS FROM THE WELL.

Claim 2

A METHOD FOR COMBATTING THE OBSTRUCTION OF GAS CIRCULATION IN DRILLING WELLS EMPLOYING GAS AS THE CIRCULATION MEDIUM WHEREIN THE OBSTRUCTION RESULTS FROM THE INGRESS OF EXTRANEOUS MATERIALS INTO THE WELL BORE, THE STEP COMPRISING INTRODUCING AN AQUEOUS SOLUTION CONTAINING A RESINFORMING COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF (A) ABOUT 1 TO 25 WEIGHT PERCENT OF A MONOMERIC ALKYLIDENE BISACRYLAMIDE OF THE FORMULA H2C=C(-R2)-CO-NH-CH(-R'')-NH-CO-C(-R2)=CH2 IN WHICH R''-CH< IS A HYDROCARBON RESIDUE OF AN ALDEHYDE CONTAINING FROM ABOUT 1 TO 10 CARBON ATOMS ANR R2 IS OF THE GROUP CONSISTING OF HYDROGEN AND METHYL, AND (B) ABOUT 75 TO 99 WEIGHT PERCENT OF ANOTHER ETHYLENIC MONOMER COPOLYMERIZABLE WITH (A), (C) CATALYTIC AMOUNTS OF AN OXIDIZING AGENT, AND (D) A SUFFICIENT AMOUNT OF CACL2 TO WEIGHT THE TUBING EXTENDING DOWNWARDLY IN THE WELL BORE BELOW THE UPPER LEVEL OF THE FORMATION OF INGRESS, CONTACTING A PORTION OF THE RESINOUS MATERIAL THROUGH THE TUBING TO FORM AN ANNULAR COLUMN OF RESINOUS MATERIAL COVERING THE FORMATION OF INGRESS IN THE ANNULAR SPACE PROVIDED BETWEEN THE TUBING AND THE PORTION OF THE FORMATION OF INGRESS EXPOSED IN THE WELL BORE, SIMULTANEOUSLY MAINTAINING THE UPER LEVEL OF THE ANNULAR RESINOUS MATERIAL AT LEAST TO COVER THE FORMATION TO BE SEALED, WHILE APPLYING PRESSURE TO THE RESINOUS MATERIAL REMAINING IN THE TUBING TO FORCE FORMATION SEALING IN THE AMOUNTS OF RESINOUS MATERIAL INTO THE PORTION OF THE FORMATION OF INGRESS EXPOSED IN THE WELL BORE REMOVING SAID TUBING FROM CONTACT WITH SID RESINOUS MATERIAL EMPLOYING AN ELECTRODE SYSTEM FOR ELECTRICALLY DISCHARGING TIN IONS TO SUBJECT THE RESINOUS MATERIAL IN THIS POSITION TO A TIN ION DOSAGE SUFFICIENT TO SOLIDIFY THE RESINOUS COMPOSITION, DRILLING THROUGH THE SOLIDIFIED RESIN, AND CONTAINING DRILLING WITH GAS CIRCULATION TO REMOVE CUTTINGS FROM THE WELL.