Patent US5692030A successfully refreshed from Google Patents.
US3208529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Completion method and system for wells
Assignee: ExxonMobil Upstream Research Co
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Filing: 1963-11-14
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Granted: 1965-09-28
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Expires: 1983-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles B Corley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:13
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/08; E21B43/00; E21B43/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A METHOD OF REMOVING FROM A BOREHOLE A MEMBER HAVING A BORE THERETHROUGH POSITIONED IN THE FIRST OF SIDE BY SIDE FIRST AND SECOND TUBING STRINGS FLUIDLY INTERCONNECTED INTERMEDIATE THEIR ENDS AND INCLUDED AS A PART OF A SYSTEM FOR OBTAINING HYDROCARBONS FROM A SUBSURFACE PRODUCING FORMATION WHEREIN AT LEAST ONE PERFORATION IS PROVIDED IN SAID FIRST TUBING STRING ADJACENT THE BOTTOM THEREOF AND WHEREIN THE NORMALLY OPEN BOTTOM OF THE SECOND TUBING STRING IS CLOSED, SAID PERFORATION BEING BELOW SAID POSITIONED MEMBER AND BELOW THE POINT OF FLUID INTERCONNECTION, COMPRISING THE STEPS OF: INTRODUCING ACID DISSOLVABLE MATERIAL DOWN THE FIRST TUBING STRING AND THROUGH SAID MEMBER TO A POSITION BELOW THE POINT AT WHICH THE TUBING STRINGS ARE INTERCONNECTED TO PACK OFF THE PERFORATION AND THEREBY DEVEOPE CIRCULATING PRESSURE IN SAID TUBING STRINGS ON PUMPING FLUID THEREIN; PUMPING A PUMP TOOL DOWN THE FIRST TUBING STRING AND ATTACHING SAID PUMP TOOL TO SAID MEMBER; PUMPING THE PUMP TOOL WITH THE FLUID DOWN THE SECOND TUBING STRING AND UP THE FIRST TUBING STRING; AND DISSOLVING SAID ACID DISSOLVABLE MATERIAL BY CIRCULATING ACID INTO CONTACT WITH SAID ACID DISSOLVABLE MATERIAL TO OPEN SAID PERFORATION.
Claim 2
Independent Claim
193 words
A METHOD OF REMOVING FROM A BOREHOLE A MEMBER HAVING A BORE THERETHROUGH POSITIONED IN THE FIRST OF SIDE BY SIDE FIRST AND SECOND TUBING STRINGS FLUIDLY INTERCONNECTED INTERMEDIATE THEIR ENDS AND INCLUDED AS A PART OF A SYSTEM FOR OBTAINING HYDROCARBONS FROM A SUBSURFACE PRODUCING FORMATION WHEREIN AT LEAST ONE PERFORATION IS PROVIDED IN SAID FIRST TUBING STRING ADJACENT THE BOTTOM THEREOF AND WHEREIN THE NORMALLY OPEN BOTTOM OF THE SECOND TUBING STRING IS CLOSED, SAID PERFORATION BEING BELOW SAID POSITIONED MEMBER AND BELOW THE POINT OF FLUID INTERCONNECTION, COMPRISING THE STEPS OF: INTRODUCING ACID DISSOLVABLE MATERIAL DOWN THE FIRST TUBING STRING AND THROUGH SAID MEMBER TO A POSITION BELOW THE POINT AT WHICH THE TUBING STRINGS ARE INTERCONNECTED TO PACK OFF THE PERFORATION AND THEREBY DEVEOPE CIRCULATING PRESSURE IN SAID TUBING STRINGS ON PUMPING FLUID THEREIN; PUMPING A PUMP TOOL DOWN THE FIRST TUBING STRING AND ATTACHING SAID PUMP TOOL TO SAID MEMBER; PUMPING THE PUMP TOOL WITH THE FLUID DOWN THE SECOND TUBING STRING AND UP THE FIRST TUBING STRING; AND DISSOLVING SAID ACID DISSOLVABLE MATERIAL BY CIRCULATING ACID INTO CONTACT WITH SAID ACID DISSOLVABLE MATERIAL TO OPEN SAID PERFORATION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |