Pyrolysis to pressurise oil formations
US10400563B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2015 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Jan 11, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/305
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods and systems for treating a subsurface hydrocarbon formation are described herein. In some embodiments, method for treating a subsurface hydrocarbon formation is provide wherein the hydrocarbon formation comprises a kerogen containing formation that is adjacent to a formation containing liquid hydrocarbons and not having a natural recharging system, the method comprising the steps of: providing heat sources in the kerogen containing formation; energizing the heat sources to heat the kerogen containing formation; heating at least a portion of the kerogen containing formation to a temperature and for a time period sufficient to pyrolyze at least some of the kerogen; limiting production of pyrolyzed hydrocarbons so that the pyrolyzed hydrocarbons increase the pressure within the formation containing liquid hydrocarbons; and producing hydrocarbons from the formation containing liquid hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.