OIL AND GAS FIELD CHEMICALS

摘要

THIS INVENTION RELATES TO A PROCESS FOR INCREASING THE EFFECTIVENESS OF PRODUCTION CHEMICALS BY REDUCING THE NUMBER OF SQUEEZING AND SHUT-IN OPERATIONS NEEDED TO INCREASE THE PRODUCTION RATE FROM AN OIL WELL. THE PROCESS COMPRISES INJECTING INTO AN OIL-BEARING ROCK FORMATION A WATER-MISCIBLE FORMULATION COMPRISING AS COMPONENTS: (A) A WATER-MISCIBLE SURFACTANT WHICH IS AN ALKYLTRIGLYCOL ETHER AND (B) AT LEAST ONE WATER-MISCIBLE OIL FIELD OR GAS FIELD PRODUCTION CHEMICAL COMPRISING A SCALE INHIBITOR, SAID COMPONENTS OF THE FORMULATION BEING INTRODUCED EITHER AS A PRE-FORMED SINGLE COMPOSITION, OR SIMULTANEOUSLY IN PARALLEL OR SEQUENTIALLY IN EITHER ORDER INTO THE ROCK FORMATION VIA THE PRODUCTION WELL.