US3137346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating wells
Assignee: Shell USA Inc
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Filing: 1960-12-05
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Granted: 1964-06-16
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Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 Ian C Mclennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:02
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/56; E; E21; E21B; E21B43/00; E21B43/02; E21B43/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
THE METHOD OF PREVENTING THE ENTRY OF EARTH FORMATION PARTICLES FROM A PRODUCING FORMATION INTO A WELL WHICH IS IN COMMUNICATION WITH SAID FORMATION, WITHOUT BLOCKING THE FLOW OF FLUID FROM SAID FORMATION INTO SAID WELL, SAID WELL BEING PROVIDED WITH AT LEAST ONE PIPE STRING HAVING AT LEAST ONE FLUID ENTRY THEREIN WITHIN THE WELL, SAID METHOD COMPRISING ADDING PIECES OF A PERMEABLE, ELASTIC MATERIAL TO A CARRIER FLUID, PUMPING THE CARRIER FLUID AND MATERIAL DOWN THE WELL THROUGH THE PIPE STRING AND DISCHARGING IT THEREFROM AT A POINT ADJACENT THE PRODUCING FORMATION, CREATING AND APPLYING A PRESSURE DIFFERENTIAL WITHIN THE WELL TO CAUSE THE PIECES OF MATERIAL TO PRESS TOGETHER AND FORM A PERMEABLE ELASTIC SHEATH WITHIN THE WELL, SAID SHEATH BEING POSITIONED BETWEEN THE PRODUCING FORMATION AND THE ENTRY TO THE PIPE STRING, AND TREATING SAID ELASTIC SHEATH IN A MANNER TO CREATE A FLUID-PERMEABLE RIGID FORM WHICH IS IMPERMEABLE TO EARTH FORMATION PARTICLES.
Claim 2
Independent Claim
157 words
THE METHOD OF PREVENTING THE ENTRY OF EARTH FORMATION PARTICLES FROM A PRODUCING FORMATION INTO A WELL WHICH IS IN COMMUNICATION WITH SAID FORMATION, WITHOUT BLOCKING THE FLOW OF FLUID FROM SAID FORMATION INTO SAID WELL, SAID WELL BEING PROVIDED WITH AT LEAST ONE PIPE STRING HAVING AT LEAST ONE FLUID ENTRY THEREIN WITHIN THE WELL, SAID METHOD COMPRISING ADDING PIECES OF A PERMEABLE, ELASTIC MATERIAL TO A CARRIER FLUID, PUMPING THE CARRIER FLUID AND MATERIAL DOWN THE WELL THROUGH THE PIPE STRING AND DISCHARGING IT THEREFROM AT A POINT ADJACENT THE PRODUCING FORMATION, CREATING AND APPLYING A PRESSURE DIFFERENTIAL WITHIN THE WELL TO CAUSE THE PIECES OF MATERIAL TO PRESS TOGETHER AND FORM A PERMEABLE ELASTIC SHEATH WITHIN THE WELL, SAID SHEATH BEING POSITIONED BETWEEN THE PRODUCING FORMATION AND THE ENTRY TO THE PIPE STRING, AND TREATING SAID ELASTIC SHEATH IN A MANNER TO CREATE A FLUID-PERMEABLE RIGID FORM WHICH IS IMPERMEABLE TO EARTH FORMATION PARTICLES.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |