US5084980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser alignment system for well equipment
Assignee: Diamant Boart Stratabit SA
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Filing: 1990-08-13
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Granted: 1992-02-04
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Expires: 2010-08-13
Abstract
Abstract A laser beam is used to align instruments, directional core barrel assemblies or other directional equipment before the assemblies are run into wells. A low power laser and special means for clamping the laser and a target to the members of the assembly are employed.
Inventors
- 👤 Robert A. Skopec
- 👤 Douglas E. Jeffers
- 👤 Freddy W. Hagins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:38
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/26; G01B11/27; E; E21; E21B; E21B25/00; E21B25/16; E21B47/00; E21B47/02; Y; Y10; Y10S; Y10S33/00; Y10S33/21
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
153 words
Apparatus for aligning on a common assembly axis a first component member and a second component member of a well tool assembly to a known angular relationship comprising: a laser for producing a beam of light; a mirror with a mark thereon; means for attaching the laser to the first member with said laser directed along the common axis and with a first reference mark on a radius from the common axis to said laser adapted for aligning the laser with respect to a reference mark on the first member; and means for attaching said mirror with mark thereon to the second member with said mirror perpendicular to the common axis adapted to reflect the beam of said laser and with a second reference mark on the radius from the common axis to said mark on said mirror adapted for aligning the mirror with respect to a reference mark on the second member.
Claim 2
Dependent Claim
153 words
Apparatus for aligning on a common assembly axis a first component member and a second component member of a well tool assembly to a known angular relationship comprising: a laser for producing a beam of light; a mirror with a mark thereon; means for attaching the laser to the first member with said laser directed along the common axis and with a first reference mark on a radius from the common axis to said laser adapted for aligning the laser with respect to a reference mark on the first member; and means for attaching said mirror with mark thereon to the second member with said mirror perpendicular to the common axis adapted to reflect the beam of said laser and with a second reference mark on the radius from the common axis to said mark on said mirror adapted for aligning the mirror with respect to a reference mark on the second member.
Claim 3
Dependent Claim
28 words
The apparatus of claim 1 further comprising a plate having a reference line thereon between a line along the beam of said laser and said first reference mark.
Claim 4
Dependent Claim
24 words
The apparatus of claim 1, further comprising a lens in the beam of light for decreasing the diameter of the beam at said mirror.
Claim 5
Dependent Claim
17 words
The apparatus of claim 1, wherein said laser has a power between 0.5 milliwatt and 3.0 milliwatt.
Claim 6
Dependent Claim
26 words
The apparatus of claim 1, wherein said laser produces a beam with a diameter less than 1 mm and a beam divergence less than 2 milliradians.
Claim 7
Dependent Claim
135 words
Apparatus for aligning on a common axis a scribe shoe having a principal scribe thereon and an orientation-measuring instrument used with a coring apparatus, comprising: a laser for producing a beam of light; a mirror and a mark thereon; means for attaching said laser to the scribe shoe of the coring apparatus with said laser directed along the common axis and on the same radius from the common axis as the principal scribe shoe; and means for attaching said mirror with said mark thereon to the orientation-measuring instrument and perpendicular to the common axis adapted to reflect the beam of said laser and with a reference mark on the radius from the common axis to said mark on said mirror adapted for aligning the mirror with respect to a reference mark on the orientation-measuring instrument.
Claim 8
Dependent Claim
135 words
Apparatus for aligning on a common axis a scribe shoe having a principal scribe thereon and an orientation-measuring instrument used with a coring apparatus, comprising: a laser for producing a beam of light; a mirror and a mark thereon; means for attaching said laser to the scribe shoe of the coring apparatus with said laser directed along the common axis and on the same radius from the common axis as the principal scribe shoe; and means for attaching said mirror with said mark thereon to the orientation-measuring instrument and perpendicular to the common axis adapted to reflect the beam of said laser and with a reference mark on the radius from the common axis to said mark on said mirror adapted for aligning the mirror with respect to a reference mark on the orientation-measuring instrument.
Claim 9
Dependent Claim
27 words
The apparatus of claim 6 further comprising a plate having a reference line thereon between a line along the beam of said laser and the principal scribe.
Claim 10
Dependent Claim
24 words
The apparatus of claim 6, further comprising a lens in the beam of light for decreasing the diameter of the beam at said mirror.
Claim 11
Dependent Claim
17 words
The apparatus of claim 6, wherein said laser has a power between 0.5 milliwatt and 3.0 milliwatt.
Claim 12
Dependent Claim
26 words
The apparatus of claim 6, wherein said laser produces a beam with a diameter less than 1 mm and a beam divergence less than 2 milliradians.
Claim 13
Dependent Claim
136 words
Apparatus for aligning on a common assembly axis a first component member and a second component member of a well tool assembly to a known angular relationship comprising: a laser for producing a beam of light; a target for the beam comprising means for producing an audible signal when the beam is directed onto said target; clamping means for attaching said laser to the first member with said laser directed along the common axis and with a first reference mark on the radius from the common axis to said laser adapted for aligning the laser with respect to a reference mark on the first member; and means for attaching said target to the second member perpendicular to the common axis and at a known location with respect to a second reference mark on the second member.
Claim 14
Dependent Claim
136 words
Apparatus for aligning on a common assembly axis a first component member and a second component member of a well tool assembly to a known angular relationship comprising: a laser for producing a beam of light; a target for the beam comprising means for producing an audible signal when the beam is directed onto said target; clamping means for attaching said laser to the first member with said laser directed along the common axis and with a first reference mark on the radius from the common axis to said laser adapted for aligning the laser with respect to a reference mark on the first member; and means for attaching said target to the second member perpendicular to the common axis and at a known location with respect to a second reference mark on the second member.
Claim 15
Dependent Claim
137 words
Apparatus for aligning on a common axis a scribe shoe having a principal scribe thereon and an orientation-measuring instrument used with a coring apparatus, comprising: a laser for producing a beam of light; a target for the beam comprising means for producing an audible signal when the beam is directed onto said target; means for attaching said laser to the scribe shoe of the coring apparatus with said laser directed along the common axis and on the same radius from the common axis as the principal scribe of the scribe shoe; and means for attaching said target to the orientation-measuring instrument and perpendicular to the common axis and with a reference mark on the radius from the common axis to said target adapted for aligning the target with respect to a known direction of the orientation-measuring instrument.
Claim 16
Dependent Claim
137 words
Apparatus for aligning on a common axis a scribe shoe having a principal scribe thereon and an orientation-measuring instrument used with a coring apparatus, comprising: a laser for producing a beam of light; a target for the beam comprising means for producing an audible signal when the beam is directed onto said target; means for attaching said laser to the scribe shoe of the coring apparatus with said laser directed along the common axis and on the same radius from the common axis as the principal scribe of the scribe shoe; and means for attaching said target to the orientation-measuring instrument and perpendicular to the common axis and with a reference mark on the radius from the common axis to said target adapted for aligning the target with respect to a known direction of the orientation-measuring instrument.
Claim 17
Dependent Claim
24 words
The apparatus of claim 12, further comprising a lens in the beam of light for decreasing the diameter of the beam at said mirror.
Claim 18
Dependent Claim
17 words
The apparatus of claim 12, wherein said laser has a power between 0.5 milliwatt and 3.0 milliwatt.
Claim 19
Dependent Claim
26 words
The apparatus of claim 12, wherein said laser produces a beam with a diameter less than 1 mm and a beam divergence less than 2 milliradians.
Claim 20
Dependent Claim
112 words
Method of aligning a first component member and a second component member of a well tool assembly on a common assembly axis to a known angular relationship, comprising the steps of: clamping a laser to the first member such that the laser is aligned along the common axis and is at a known location with respect to a reference mark on the first member; clamping a mirror having a reference mark thereon perpendicular to the second member; adjusting the angular position of the mirror until the beam of the laser is centered on the reference mark of the mirror; and measuring the angle of the laser with respect to a known direction.
Claim 21
Dependent Claim
112 words
Method of aligning a first component member and a second component member of a well tool assembly on a common assembly axis to a known angular relationship, comprising the steps of: clamping a laser to the first member such that the laser is aligned along the common axis and is at a known location with respect to a reference mark on the first member; clamping a mirror having a reference mark thereon perpendicular to the second member; adjusting the angular position of the mirror until the beam of the laser is centered on the reference mark of the mirror; and measuring the angle of the laser with respect to a known direction.
Claim 22
Dependent Claim
42 words
The method of claim 16 further comprising the step of: adjusting the angular position of the laser until the reflected beam of the laser is centered on a line between a line along the beam of the laser and the first member.
Claim 23
Dependent Claim
28 words
The method of claim 16, further comprising the step of: placing a lens in the laser beam to decrease the diameter of a light beam from the laser.
Claim 24
Dependent Claim
15 words
The method of claim 16 wherein the known direction is measured by an orientation-measuring instrument.
References Cited (Backward Citations)
US2735652A
Cited
US1770224A
Cited
US1830345A
Cited
US2088539A
Cited
US2136689A
Cited
US2971373A
Cited
US3059707A
Cited
US3703682A
Cited
US3801205A
Cited
US4150897A
Cited
US4141153A
Cited
US4676636A
Cited
JPS6238309A
Cited
US4747454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-03 | 1995-08-05 | 1996-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-03 | 1999-08-05 | 2000-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-03 | 2003-08-05 | 2004-02-04 | $7700.00 | Window Closed / Lapsed |