US3323593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating an oil-bearing formation
Assignee: Schlumberger Technology Corp
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Filing: 1964-03-16
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Granted: 1967-06-06
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Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 William C Foshee
- 👤 Charles L Wendorff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:33
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/52; E; E21; E21B; E21B21/00; E21B21/003; E21B21/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
IN A METHOD OF TREATING A FORMATION PENETRATED BY A WELLBORE EMPLOYING A FLUID COMPOSITION, COMPRISING A PRINCIPAL LIQUID SELECTED FROM THE CLASS CONSISTING OF OILBASE AND AQUEOUS-BASE LIQUIDS, WHICH IS INJECTED DOWN THE WELLBORE AND BROUGHT INTO CONTACT WITH THE FORMATION, THE IMPROVEMENT WHICH COMPRISES (A) ADMIXING WITH SAID PRINCIPAL LIQUID (1) AN AMOUNT OF BETWEEN ABOUT 0.01 AND ABOUT 10.0 PERCENT, BASED ON THE VOLUME OF SAID PRINCIPAL LIQUID, OF A CONDITIONING LIQUID IMMISCIBLE WITH SAID PRINCIPAL LIQUID AND SELECTED FROM THE CLASS CONSISTING OF AN AQUEOUS LIQUID WHEN SAID PRINCIPAL LIQUID IS AN OIL-BASE LIQUID AND OF AN OIL WHEN SAID PRINCIPAL LIQUID, IS AN AQUEOUS-BASE LIQUID, (2) BETWEEN ABOUT 0.01 AND ABOUT 20 PERCENT, BASED ON THE VOLUME OF SAID PRINCIPAL LIQUID OF A SURFACE ACTIVE AGENT, AND (3) A GAS, WHICH IS NOT OBJECTIONABLY REACTIVE WITH THE LIQUIDS PRESENT, IN AN AMOUNT IN EXCESS OF THAT WICH WILL DISSOLVE IN THE LIQUID COMPOSITION AT THE TEMPERATURE AND PRESSURE EXISTING AT THE LEVELS OF THE FORMATION BEING TREATED TO MAKE AN IMPROVED LOW FLUID LOSS COMPOSITION, AND (B) FORCING THE IMPROVED COMPOSITION SO MADE INTO CONTACT WITH THE FORMATION AT THE LEVELS BEING TREATED.
Claim 2
Dependent Claim
198 words
IN A METHOD OF TREATING A FORMATION PENETRATED BY A WELLBORE EMPLOYING A FLUID COMPOSITION, COMPRISING A PRINCIPAL LIQUID SELECTED FROM THE CLASS CONSISTING OF OILBASE AND AQUEOUS-BASE LIQUIDS, WHICH IS INJECTED DOWN THE WELLBORE AND BROUGHT INTO CONTACT WITH THE FORMATION, THE IMPROVEMENT WHICH COMPRISES (A) ADMIXING WITH SAID PRINCIPAL LIQUID (1) AN AMOUNT OF BETWEEN ABOUT 0.01 AND ABOUT 10.0 PERCENT, BASED ON THE VOLUME OF SAID PRINCIPAL LIQUID, OF A CONDITIONING LIQUID IMMISCIBLE WITH SAID PRINCIPAL LIQUID AND SELECTED FROM THE CLASS CONSISTING OF AN AQUEOUS LIQUID WHEN SAID PRINCIPAL LIQUID IS AN OIL-BASE LIQUID AND OF AN OIL WHEN SAID PRINCIPAL LIQUID, IS AN AQUEOUS-BASE LIQUID, (2) BETWEEN ABOUT 0.01 AND ABOUT 20 PERCENT, BASED ON THE VOLUME OF SAID PRINCIPAL LIQUID OF A SURFACE ACTIVE AGENT, AND (3) A GAS, WHICH IS NOT OBJECTIONABLY REACTIVE WITH THE LIQUIDS PRESENT, IN AN AMOUNT IN EXCESS OF THAT WICH WILL DISSOLVE IN THE LIQUID COMPOSITION AT THE TEMPERATURE AND PRESSURE EXISTING AT THE LEVELS OF THE FORMATION BEING TREATED TO MAKE AN IMPROVED LOW FLUID LOSS COMPOSITION, AND (B) FORCING THE IMPROVED COMPOSITION SO MADE INTO CONTACT WITH THE FORMATION AT THE LEVELS BEING TREATED.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |