Patent US3593786A successfully refreshed from Google Patents.
US3593786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet wall cleaner
Assignee: Individual
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Filing: 1969-09-10
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Granted: 1971-07-20
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Expires: 1989-09-10
Abstract
Abstract A cleaner for the wall of a well bore including a short full bore tube with a plurality of angulated jet orifices directing a high velocity stream of fluid against the wall of the well bore to effectively clean the wall. A sleeve is slidably mounted on the tube for closing the jet orifices with a locking device securing the sleeve in closed position and a shear pin holding the sleeve in open position until closed by a cement tap plug.
Inventors
- 👤 Farral F Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:19
CPC Classifications
E; E21; E21B; E21B41/00; E21B41/0078; E21B34/00; E21B34/06; E21B34/14; E21B34/142
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
In a jet wall cleaner for jetting a high velocity fluid against the wall of a well bore for cleaning deposits therefrom and including a tubular section having oppositely spaced vertical slots therein, the improvement comprising, sleeve valve means slidably mounted on the exterior of said tubular section, jet orifice means in the wall of said tubular section, means for retaining said sleeve valve means in a first position wherein said jet orifice means are open, a crosspin in said sleeve valve means extending through said slots, and means for moving said sleeve valve means to a second position in response to pressure on said crosspin wherein said jet orifice means are closed, and lock means retaining said sleeve valve means in said second position, said lock means being substantially ringlike in configuration thereby providing an effective lock about a substantial portion of the periphery of the tubular section.
Claim 2
Dependent Claim
149 words
In a jet wall cleaner for jetting a high velocity fluid against the wall of a well bore for cleaning deposits therefrom and including a tubular section having oppositely spaced vertical slots therein, the improvement comprising, sleeve valve means slidably mounted on the exterior of said tubular section, jet orifice means in the wall of said tubular section, means for retaining said sleeve valve means in a first position wherein said jet orifice means are open, a crosspin in said sleeve valve means extending through said slots, and means for moving said sleeve valve means to a second position in response to pressure on said crosspin wherein said jet orifice means are closed, and lock means retaining said sleeve valve means in said second position, said lock means being substantially ringlike in configuration thereby providing an effective lock about a substantial portion of the periphery of the tubular section.
Claim 3
Dependent Claim
66 words
The combination of claim 1 wherein said jet orifice means includes a plurality of circumferentially spaced orifices in said tubular member, said orifices being inclined at an angle to a plane perpendicular to the axis of said tubular section and to a plane including the axis of said tubular section whereby fluid flowing from said orifices will flow in a swirling pattern in said well bore.
Claim 4
Dependent Claim
185 words
In a jet wall cleaner for jetting a high velocity fluid against the wall of a well bore cleaning deposits therefrom and including a tubular section having oppositely spaced vertical slots therein, the improvement comprising, sleeve valve means slidably mounted on the exterior of said tubular section, jet orifice means in the wall of said tubular section, means for retaining said sleeve valve means in a first position wherein said jet orifice means are open, a crosspin in said sleeve valve means extending through said slots, and means for moving said sleeve valve means to a second position in response to pressure on said crosspin wherein said jet orifice means are closed, and means in said sleeve valve means for locking said sleeve valve means in said second position, said sleeve valve means including a circumferentially extending internal groove substantially adjacent the upper end thereof, said locking means comprising a locking snapring seated in said internal groove, and a peripherally extending groove in said tubular section, said locking snapring engaged in said peripherally extending groove when said sleeve valve means is in said second position.
Claim 5
Dependent Claim
185 words
In a jet wall cleaner for jetting a high velocity fluid against the wall of a well bore cleaning deposits therefrom and including a tubular section having oppositely spaced vertical slots therein, the improvement comprising, sleeve valve means slidably mounted on the exterior of said tubular section, jet orifice means in the wall of said tubular section, means for retaining said sleeve valve means in a first position wherein said jet orifice means are open, a crosspin in said sleeve valve means extending through said slots, and means for moving said sleeve valve means to a second position in response to pressure on said crosspin wherein said jet orifice means are closed, and means in said sleeve valve means for locking said sleeve valve means in said second position, said sleeve valve means including a circumferentially extending internal groove substantially adjacent the upper end thereof, said locking means comprising a locking snapring seated in said internal groove, and a peripherally extending groove in said tubular section, said locking snapring engaged in said peripherally extending groove when said sleeve valve means is in said second position.
Claim 6
Dependent Claim
19 words
The combination of claim 3 wherein said peripherally extending groove is disposed above the upper ends of said slots.
Claim 7
Dependent Claim
30 words
The combination of claim 3 wherein said crosspin includes a collar mounted thereon interiorly of the tubular section, said jet orifices being disposed below the lower ends of said slots.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |