Devon Energy (DVN) USPTO patents

A method and system for enhancing petroleum production are provided, in which a fracturing operation can be conducted in a formation through a string and then petroleum is displaced from the fractured formation by selectively injecting fluid into selected fractures in the formation while other non-selected fractures remain without fluid injection.

A method and system for enhancing petroleum production are provided, in which a fracturing operation can be conducted in a formation through a string and then petroleum is displaced from the fractured formation by selectively injecting fluid into selected fractures in the formation while other non-selected fractures remain without fluid injection.

There is provided herein a system and method for automatically determining the path within a target rock unit of a directionally drilled well (the target well) using log readings, e.g., gamma log readings, taken in the target well as compared with log readings (the typelog) taken in a well that penetrates the target rock unit (the offset well).