US3842906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well bore cleaner construction
Assignee: Halliburton Co
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Filing: 1972-10-31
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Granted: 1974-10-22
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Expires: 1992-10-31
Abstract
Abstract In the construction of an oil well bore scraping device, a plurality of braided cables each receive cylindrical spooled ends which are swaged onto one or both ends of the cable and then inserted into the cylindrical wiper body and bradded over, leaving the cables extending outwardly from the wiper body.
Inventors
- 👤 E Paramore
- 👤 T Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:34
CPC Classifications
E; E21; E21B; E21B37/00; E21B37/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
150 words
Apparatus for cleaning well bores of drilling mud filtercake buildup comprising: a cylindrical sleeve of generally larger inner diameter than the outer diameter of casing in the well bore; said cylindrical sleeve having a plurality of apertures through the wall thereof around the periphery of said sleeve; a plurality of braided cables; each end of said braided cable having a bell-ended socket assembly swaged thereto, and each said bell-ended socket assembly having an initially cylindrically extending portion extending into one of said apertures in said sleeve and bradded over on the inside of said sleeve, thereby permanently attaching said cables to said sleeve; each said cable being of sufficiently greater length than the distance between said apertures to which it is connected, thereby forming a stiff outwardly extending cable loop on the outer surface of said sleeve; and means for securing said sleeve fixedly to a section of well casing.
Claim 2
Dependent Claim
150 words
Apparatus for cleaning well bores of drilling mud filtercake buildup comprising: a cylindrical sleeve of generally larger inner diameter than the outer diameter of casing in the well bore; said cylindrical sleeve having a plurality of apertures through the wall thereof around the periphery of said sleeve; a plurality of braided cables; each end of said braided cable having a bell-ended socket assembly swaged thereto, and each said bell-ended socket assembly having an initially cylindrically extending portion extending into one of said apertures in said sleeve and bradded over on the inside of said sleeve, thereby permanently attaching said cables to said sleeve; each said cable being of sufficiently greater length than the distance between said apertures to which it is connected, thereby forming a stiff outwardly extending cable loop on the outer surface of said sleeve; and means for securing said sleeve fixedly to a section of well casing.
Claim 3
Dependent Claim
82 words
The apparatus of claim 1 wHerein said sleeve has two horizontal, parallel rows of apertures therethrough and each said cable loop has one end secured through an aperture in one row and the other end secured to an aperture in the other row, with said cable spanning two or more apertures which are not occupied by that particular cable loop, and with said cable loops arranged in a staggered, overlapping arrangement to provide a full 360* of bore wall contact cable area.
Claim 4
Independent Claim
132 words
A method of constructing a well bore cleaning apparatus comprising the steps of: drilling a plurality of apertures through the wall of a cylindrical sleeve which is adapted to slide over a well casing; providing a plurality of stiff braided metallic cable lengths; swaging upon each end of each cable length a socket assembly having a flared midsection and a cylindrical longitudinally extending end, with said cylindrical end pointing away from said cable length; inserting said cylindrical ends of said socket assemblies through appropriate apertures in said sleeves so as to result in a staggered, over-lapping plurality of looped cables extending outward from said sleeve; and bradding said cylindrical ends of said socket assemblies over on the inside surface of said sleeve so as to secure said assemblies permanently in said apertures.
Claim 5
Independent Claim
132 words
A method of constructing a well bore cleaning apparatus comprising the steps of: drilling a plurality of apertures through the wall of a cylindrical sleeve which is adapted to slide over a well casing; providing a plurality of stiff braided metallic cable lengths; swaging upon each end of each cable length a socket assembly having a flared midsection and a cylindrical longitudinally extending end, with said cylindrical end pointing away from said cable length; inserting said cylindrical ends of said socket assemblies through appropriate apertures in said sleeves so as to result in a staggered, over-lapping plurality of looped cables extending outward from said sleeve; and bradding said cylindrical ends of said socket assemblies over on the inside surface of said sleeve so as to secure said assemblies permanently in said apertures.
Claim 6
Independent Claim
110 words
A method of attaching generally cylindrical cables to a relatively wide, thin sheet comprising: forming openings in said sheet to receive said cables; inserting the end of said cable to be attached to said sheet into a tubular sleeve; swaging said sleeve down on said cable thereby clamping said cable securely within said sleeve; simultaneously forming a belled rib on said sleeve while retaining a cylindrical extended end on said sleeve; inserting said cylindrical end into one of said openings until said belled end abuts a surface of said sheet; and bradding said cylindrical end over on the surface of said sheet opposite from the surface abutting said belled end.
Claim 7
Independent Claim
110 words
A method of attaching generally cylindrical cables to a relatively wide, thin sheet comprising: forming openings in said sheet to receive said cables; inserting the end of said cable to be attached to said sheet into a tubular sleeve; swaging said sleeve down on said cable thereby clamping said cable securely within said sleeve; simultaneously forming a belled rib on said sleeve while retaining a cylindrical extended end on said sleeve; inserting said cylindrical end into one of said openings until said belled end abuts a surface of said sheet; and bradding said cylindrical end over on the surface of said sheet opposite from the surface abutting said belled end.
Claim 8
Dependent Claim
126 words
A wellbore cleaning device comprising: means for encircling a casing string in relatively close fitting relationship, said encircling means having a plurality of holes through the wall thereof; attachment means for securing said encircling means to the casing string; a plurality of stiff cable means projecting outwardly from said encircling means; and means for securing said stiff cable means fixedly to said encircling means, said securing means comprising a plurality of initially cylindrical sleeves each having a belled end formed by swaging said sleeve onto said cable means, and each said sleeve passing through one of said holes and being bradded over on the inside of said encircling means thereby securing each said sleeve to said encircling means in relatively normal orientation to the surface thereof.
Claim 9
Dependent Claim
126 words
A wellbore cleaning device comprising: means for encircling a casing string in relatively close fitting relationship, said encircling means having a plurality of holes through the wall thereof; attachment means for securing said encircling means to the casing string; a plurality of stiff cable means projecting outwardly from said encircling means; and means for securing said stiff cable means fixedly to said encircling means, said securing means comprising a plurality of initially cylindrical sleeves each having a belled end formed by swaging said sleeve onto said cable means, and each said sleeve passing through one of said holes and being bradded over on the inside of said encircling means thereby securing each said sleeve to said encircling means in relatively normal orientation to the surface thereof.
Claim 10
Dependent Claim
48 words
The apparatus of claim 5 wherein said encircling means comprises a plurality of vertical bars arranged around the circumference of the casing and said attachment means comprises one or more circle clamps passing around said vertical bars and said casing and tightly securing said bars to said casing.
Claim 11
Dependent Claim
44 words
The apparatus of claim 5 wherein said encircling means comprises a helical strip passing helically around the casing and said attachment means comprises one or more circle clamps passing around said helical strip and the casing and tightly securing said strip to the casing.
Claim 12
Dependent Claim
54 words
The apparatus of claim 5 wherein said encircling means comprises a cylindrical sleeve adapted to slide over said casing and said attachment means comprises one or more threaded members passing through said sleeve in threaded relationship therewith and arranged to abut the casing and prevent movement of said sleeve with respect to said casing.
Claim 13
Dependent Claim
30 words
The apparatus of claim 5 wherein said cable means project straight outward radially from said encircling means and have one end attached to said encircling means, and one end free.
Claim 14
Dependent Claim
40 words
The apparatus of claim 5 wherEin said cable means comprises a plurality of looped cables having each end thereof secured to said encircling means and being of sufficient length to form outwardly extending loops of cable on said encircling means.
Claim 15
Dependent Claim
28 words
The apparatus of claim 5 wherein said cable means comprises a plurality of looped cables and a plurality of outwardly straight cables both attached to said encircling means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |