COMPREHENSIVE CLUSTER FACILITY FOR DEWATERING OIL AND PURIFYING AND RECOVERING ASSOCIATED FORMATION WATER

摘要

The invention relates to the oil extraction industry, more specifically to gathering a gas-liquid product and preparing water for a system for maintaining formation pressure in a well cluster. The problem of interest and the desired technical result consist in increasing the operating efficiency of a comprehensive cluster facility for dewatering oil and purifying and recovering associated formation water by preventing the mixing of waters from different sources and, accordingly, preventing scaling. The amount of metal used in a system for gathering oil and maintaining formation pressure is reduced, as is energy consumption through the exclusion of powerful pumping units. A comprehensive cluster facility for dewatering oil and purifying and recovering associated formation water, comprising producing wells connected by a pipe to a unit for separating and dewatering oil, an oil-gathering main, and water conduits for the system for maintaining formation pressure, is characterized in that it additionally includes a rathole for the advanced treatment of associated water. The comprehensive cluster facility additionally comprises a unit for purifying associated water. The comprehensive cluster facility includes the producing wells and injection wells of a number of adjacent clusters in order to serve said clusters simultaneously. For the first time it is proposed to use only associated water in a system for maintaining formation pressure in a cluster without using additional water supply wells.