公开(公告)号：US20190003295A1

公开(公告)日：2019-01-03

申请号：US15774310

申请日：2016-11-10

Applicant: University of Houston System

Inventor： Christine Ehlig-Economides ,  Ali Daneshy

IPC: E21B43/30 ,  E21B43/26 ,  E21B47/12

CPC classification number: E21B43/305 ,  E21B43/16 ,  E21B43/26 ,  E21B47/12

Abstract: Enhancing the recovery of unconventional and conventional hydrocarbons is possible by utilizing patterns of wells and hydraulic fractures that are carefully designed to avoid interconnection between injection and production well fractures to allow for both primary production and improved secondary production. Adjacent horizontal wells may be drilled and fractured, with selected wells converted to injection wells after primary production to produce alternating production and injection fractures. In addition, infill horizontal injection wells may be drilled and fractured adjacent to an existing and previously produced multiple transverse fracture horizontal hydrocarbon production well to produce alternating production and injection fractures.