SUBSURFACE WELL SYSTEMS WITH MULTIPLE DRAIN WELLS EXTENDING FROM A PRODUCTION WELL AND METHODS FOR USE THEREOF

摘要

Drain wells can be used to direct, a fluid to a central production well in a subsurface well system, Subsurface well systems can comprise a production well extending from the earth's surface; a collection region having a fluid connection to the production well, wherein the collection region is contiguous with the production well or comprises a collection well that intersects or is in fluid communication with the production well; and a plurality of drain wells that extend laterally from the production well, wherein one or more of the drain wells intersect or are in fluid communication with the collection region, one or more of the drain wells re- intersect, or are in fluid communication with the production well at a point above the fluid connection of the collection region to the production well, or any combination thereof.