METHOD FOR INTERVAL-BY-INTERVAL DEVELOPMENT OF PRODUCING BED Russian patent published in 1995 - IPC

FIELD: gas-and-oil producing industry. SUBSTANCE: method involves pumping a reagent into a preset interval. Simultaneously, neutral fluid is pumped by parallel streams into the intervals located directly above and under the preset interval. The neutral fluid penetrating into a bed reservoir does not change chemophysical characteristics of said bed. The use of the claimed method rules out pollution of nondeveloped bed intervals. Concurrent pumping-in of reagent and neutral fluid creates compression fields which prevent the fluids from penetrating into each other. EFFECT: directing the development of bed to its deeper zone. 2 dwg