US2720265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjusting the retrograde condensation pressure of hydrocarbon compositions
Assignee: Gulf Research and Development Co
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Filing: 1954-03-31
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Granted: 1955-10-11
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Expires: 1974-03-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Tracht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:18
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/04; E; E21; E21B; E21B43/00; E21B43/16; E21B43/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A METHOD OF PRODUCING INCREASED YIELDS OF NORMALLY LIQUID HYDROCARBONS FROM A GAS CONDENSATE WELL, WHICH PROCESS COMPRISES FLOWING WELL FLUIDS CONTAINING HYDROGEN SULFIDE FROM A PRODUCTION WELL TO A ZONE OF PRESSURE REDUCED TO BELOW THE RETROGRADE CONDENSATION PRESSURE OF THE WELL FLUIDS AND THEREBY CONDENSING LIQUID HYDROCARBONS FROM THE FLUIDS, WITHDRAWING LIQUEFIED HYDROCARBONS FROM THE CONDENSING ZONE, PASSING GASEOUS FLUIDS FROM THE CONDENSING ZONE TO A PURIFICATION ZONE SEPARATING ACID GASES INCLUDING HYDROGEN SULFIDE FROM THE GASEOUS FLUIDS IN THE PURIFICATION ZONE, WITHDRAWING HYDROCARBON GASES SUBSTANTIALLY FREE OF ACID GASES FROM THE SEPARATION ZONE AND COMPRESSING AT LEAST OF PORTION OF SAID GASES, ADDING TO THE SAID COMPRESSED GASES SUFFICIENT QUANTITY OF HYDROGEN SULFIDE OF THE SAID ACID GASES TO PROVIDE A HYDROGEN SULFIDE CONCENTRATION OF THE COMPRESSED GASES HIGHER THAN THAT OF THE SAID WELL FLUIDS AND RECYCLING THE SO-FORMED MIXTURE OF COMPRESSED GAS AND HYDROGEN SULFIDE TO THE SAID WELL FORMATION.
Claim 2
Independent Claim
155 words
A METHOD OF PRODUCING INCREASED YIELDS OF NORMALLY LIQUID HYDROCARBONS FROM A GAS CONDENSATE WELL, WHICH PROCESS COMPRISES FLOWING WELL FLUIDS CONTAINING HYDROGEN SULFIDE FROM A PRODUCTION WELL TO A ZONE OF PRESSURE REDUCED TO BELOW THE RETROGRADE CONDENSATION PRESSURE OF THE WELL FLUIDS AND THEREBY CONDENSING LIQUID HYDROCARBONS FROM THE FLUIDS, WITHDRAWING LIQUEFIED HYDROCARBONS FROM THE CONDENSING ZONE, PASSING GASEOUS FLUIDS FROM THE CONDENSING ZONE TO A PURIFICATION ZONE SEPARATING ACID GASES INCLUDING HYDROGEN SULFIDE FROM THE GASEOUS FLUIDS IN THE PURIFICATION ZONE, WITHDRAWING HYDROCARBON GASES SUBSTANTIALLY FREE OF ACID GASES FROM THE SEPARATION ZONE AND COMPRESSING AT LEAST OF PORTION OF SAID GASES, ADDING TO THE SAID COMPRESSED GASES SUFFICIENT QUANTITY OF HYDROGEN SULFIDE OF THE SAID ACID GASES TO PROVIDE A HYDROGEN SULFIDE CONCENTRATION OF THE COMPRESSED GASES HIGHER THAN THAT OF THE SAID WELL FLUIDS AND RECYCLING THE SO-FORMED MIXTURE OF COMPRESSED GAS AND HYDROGEN SULFIDE TO THE SAID WELL FORMATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |