Patent US3612181A successfully refreshed from Google Patents.
US3612181A
Expired / Lapsed
US
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Method for consolidating incompetent formations
Assignee: ExxonMobil Upstream Research Co
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Filing: 1970-02-16
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Granted: 1971-10-12
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Expires: 1990-02-16
Abstract
Abstract A method for the consolidation of incompetent formations wherein a thermosetting resin is injected into the formation through a first conduit and a curing agent for the resin is injected into the formation through a second conduit.
Inventors
- 👤 Fred A Brooks Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:00
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/56
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
34 words
The invention as recited in claim 1 wherein said one of the reactive components is a liquid thermosetting resin and said other of the reactive components is a curing agent for said thermosetting resin.
Claim 2
Dependent Claim
18 words
The invention as recited in claim 2 wherein the first conduit is arranged concentrically in the second conduit.
Claim 3
Dependent Claim
15 words
The invention as recited in claim 2 wherein the thermosetting resin is an epoxy resin.
Claim 4
Dependent Claim
15 words
The invention as recited in claim 2 wherein the thermosetting resin is a phenol-formaldehyde resin.
Claim 5
Independent Claim
119 words
A method for sequentially placing a solution containing a thermosetting resin and a solution containing a curing agent for said resin in an incompetent formation surrounding a wellbore provided with two conduits which extend from the surface to a subsurface elevation near the formation, the method comprising the steps of: placing said solution containing the curing agent in one of said conduits, the leading portion of said solution being positioned near the lower end of said one of said conduits; pumping said solution containing the thermosetting resin through the other of said conduits and into the formation; displacing said solution containing the curing agent from said one of said conduits into the formation; and permitting the resin to harden.
Claim 6
Dependent Claim
36 words
The invention as recited in claim 6 wherein the liquid thermosetting resin is an epoxy resin and the curing agent is a catalyst reactive with the epoxy resin to impart a set thereto at formation conditions.
Claim 7
Dependent Claim
36 words
The invention are recited in claim 6 wherein the liquid thermosetting resin is a phenol-formaldehyde resin and the curing agent is a catalyst reactive with the phenol-formaldehyde resin for imparting a set thereto at formation conditions.
Claim 8
Independent Claim
64 words
A method for consolidating a subterranean formation surrounding a wellbore which comprises sequentially injecting a liquid thermosetting resin into said formation through one conduit in said wellbore and injecting a curing agent for said thermosetting resin into said formation through another conduit in said wellbore, said conduits extending from the surface to an elevation proximate said formation; and permitting said thermosetting resin to harden.
References Cited (Backward Citations)
US3176767A
Cited
US3448800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |