US3714831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for suspending measuring instruments inside drilling assembly
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1970-09-03
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Granted: 1973-02-06
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Expires: 1990-09-03
Abstract
Abstract A device for suspending a measuring instrument in a drilling assembly comprising: a drill-collar designed to receive the measuring instrument; at least one connecting member attached to the measuring instrument and provided with a shoulder; a number of suspension rings consisting of three sections integrated by vulcanization i.e., a first frame, a second frame having the same center line and an annular elastomeric body between said frame, said suspension rings bearing by one of their frames on said shoulder; a first permanent seat on the connecting member through which said rings are attached to the connecting member; a second permanent seat on the drill-collar bearing on the other frame of said suspension rings and an annular part supported between said seats and made of an elastomer having a greater rigidity than that of the elastomer used to make the suspension rings.
Inventors
- 👤 J Tinchon
- 👤 C Quichaud
- 👤 Peuvedic J Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:36
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/04; F16F15/08; E; E21; E21B; E21B47/00; E21B47/01; E21B47/017; F16F3/00; F16F3/08; F16F3/087; F16F3/0873; Y; Y10; Y10T; Y10T403/00; Y10T403/40; Y10T403/405
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
116 words
A device for suspending a measuring instrument housing inside a drilling assembly, said device comprising: a drill-collar; at least one connecting member attached to said measuring instrument housing and concentric with but radially spaced from a part of said drill-collar; annular elastomeric suspension means positioned between said connecting member and said part of said drill-collar to damp the transmission of torsional and longitudinal vibrations from said collar to said connecting member; a first seat on said connecting member; a second seat on said drill-collar axially spaced from said first seat, and an annular member gripped between said seats and made of an elastomeric material having a greater rigidity than that used to make said suspension means.
Claim 2
Independent Claim
116 words
A device for suspending a measuring instrument housing inside a drilling assembly, said device comprising: a drill-collar; at least one connecting member attached to said measuring instrument housing and concentric with but radially spaced from a part of said drill-collar; annular elastomeric suspension means positioned between said connecting member and said part of said drill-collar to damp the transmission of torsional and longitudinal vibrations from said collar to said connecting member; a first seat on said connecting member; a second seat on said drill-collar axially spaced from said first seat, and an annular member gripped between said seats and made of an elastomeric material having a greater rigidity than that used to make said suspension means.
Claim 3
Independent Claim
116 words
A device for suspending a measuring instrument housing inside a drilling assembly, said device comprising: a drill-collar; at least one connecting member attached to said measuring instrument housing and concentric with but radially spaced from a part of said drill-collar; annular elastomeric suspension means positioned between said connecting member and said part of said drill-collar to damp the transmission of torsional and longitudinal vibrations from said collar to said connecting member; a first seat on said connecting member; a second seat on said drill-collar axially spaced from said first seat, and an annular member gripped between said seats and made of an elastomeric material having a greater rigidity than that used to make said suspension means.
Claim 4
Independent Claim
116 words
A device for suspending a measuring instrument housing inside a drilling assembly, said device comprising: a drill-collar; at least one connecting member attached to said measuring instrument housing and concentric with but radially spaced from a part of said drill-collar; annular elastomeric suspension means positioned between said connecting member and said part of said drill-collar to damp the transmission of torsional and longitudinal vibrations from said collar to said connecting member; a first seat on said connecting member; a second seat on said drill-collar axially spaced from said first seat, and an annular member gripped between said seats and made of an elastomeric material having a greater rigidity than that used to make said suspension means.
Claim 5
Dependent Claim
58 words
Device as claimed in claim 1 in which said suspension means comprises a plurality of rings, each comprIsing an internal frame section, a concentric external frame section, and an elastomeric body section positioned between said frame sections and vulcanized thereto, one of said frame sections being fixed to said drill-collar part and the other to said connecting member.
Claim 6
Dependent Claim
24 words
A device according to claim 2 in which the suspension rings are provided with grooves that are parallel to the center-line of the rings.
Claim 7
Dependent Claim
16 words
A device according to claim 1 in which said elastomer is of the nitrile acrylic type.
Claim 8
Dependent Claim
15 words
A device according to claim 1 in which said elastomer is of the fluorinated type.
Claim 9
Dependent Claim
93 words
A device as claimed in claim 1 in which said drill-collar has two seals and comprising two connecting members attached to opposite ends of said instrument housing, each of which connecting members is connected to said drill-collar by a plurality of suspension rings and provided with a seat, said device further comprising a second annular member made of an elastomeric material having a greater rigidity than that used to make said suspension means, each of said annular members being positioned between one of said drill-collar seats and one of said connecting member seats.
Claim 10
Dependent Claim
37 words
Device as claimed in claim 1 in which said drill-collar part is a central axial projection connected to the remainder of said collar by a perforate web, and said connecting member defines a recess encircling said projection.
Claim 11
Dependent Claim
19 words
Device as claimed in claim 1 comprising elastomeric centering means attached to said instrument housing and projecting radially thereof.
Claim 12
Dependent Claim
30 words
Device as claimed in claim 1 in which the elastomeric sections of said rings are provided with a plurality of recesses which assist in determining the rigidity of said rings.
References Cited (Backward Citations)
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US2795398A
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US3149490A
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US3158923A
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US3387839A
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |