Acid gas disposal method
AssigneeExxonMobil Upstream Research Company
InventorsEugene R. Thomas, P. Scott Northrop, Hua Hu
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Abstract
This invention is method of recovering gas from a gas-bearing subterranean formation in which gas is produced from an upper portion of the formation and a waste gas is injected into a lower portion of the formation to dispose of the waste gas. The waste gas is injected within a 3000 foot (914 m) radial distance from the production of the gas. The injection and production can be carried out using one well or a plurality of wells.
Claims35
A method of recovering gas from a gas-bearing subterranean formation comprising:
- a) producing gas from an upper portion of the formation;
- and
- b) injecting a waste gas into a lower portion of the formation to dispose of the waste gas, said waste gas being injected within a 3000 foot (914 m) radial distance from the production of the gas.
A method of recovering hydrocarbons from a subterranean formation, comprising:
- a) producing the hydrocarbons from the upper portion of the formation, the hydrocarbons comprising an acid gas;
- b) separating the acid gas from the hydrocarbons;
- and
- c) placing at least a portion of the separated acid gas into the lower portion of the formation, wherein said acid gas placement helps maintain the formation pressure.
Dependencies are inferred from the claim text.