Patents
US 11725154 B2: Hydrocarbon gas recovery methods
- Granted
- 2023-08-15
- Filed
- 2022-06-08 application 17806004
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of recovery of rich gas where the rich gas is a hydrocarbon gas comprising less than 50 mole % methane is disclosed. The method comprises the steps of gathering the low pressure gas, compressing the gathered gas, cooling the compressed gas in a condenser so that a portion of the compressed gas condenses to form a liquefied gas and liquefied gas vapour in the condenser, and discharging the liquefied gas and liquefied gas vapour from the condenser, in which the cooling of the compressed gas is performed using at least one heat exchanger (40).
Source: PVGPATDIS, file of 2026-04-10 (ipg230815.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Energy & Environmental Research Center 68 patents | US company or organization | Portland, ND | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Darren Schmidt | Williston, ND | 11 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C10G | Cracking hydrocarbon oils; production of liquid hydrocarbon mixtures, e.g. by destructive hydrogenation, oligomerisation, polymerisation ; recovery of hydrocarbon oils from oil-shale, oil-sand, or gases; refining mixtures mainly consisting of hydrocarbons; reforming of naphtha; mineral waxes | C10G70/043 | PVGPATDIS, file of 2026-04-10 |
| B01D | Separation | B01D5/0003 | PVGPATDIS, file of 2026-04-10 |
| C07C | Acyclic or carbocyclic compounds | C07C7/005 | PVGPATDIS, file of 2026-04-10 |
| C10L | Fuels not otherwise provided for; natural gas; synthetic natural gas obtained by processes not covered by subclasses c10g or c10k; liquified petroleum gas; use of additives to fuels or fires; fire-lighters | C10L3/101 | PVGPATDIS, file of 2026-04-10 |
| E21B | Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells | E21B41/005 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-12-07 | Assignment Assignment of assignor's interest | SCHMIDT, DARREN signed 2022-11-04 | ENERGY AND ENVIRONMENTAL RESEARCH CENTER FOUNDATION GRAND FORKS, ND | 62014/993 | PASDL, file of 2026-10-15 |
| 2022-11-03 | Assignment Assignment of assignor's interest | EQUINOR US OPERATIONS LLC signed 2022-07-11 | ENERGY AND ENVIRONMENTAL RESEARCH CENTER FOUNDATION GRAND FORKS, ND | 61651/406 | PASDL, file of 2026-10-15 |
| 2022-11-03 | Assignment Assignment of assignor's interest | SCHMIDT, DARREN signed 2020-08-27 | EQUINOR LLC HOUSTON, TX | 61651/341 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.