US5204673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Borehole televiewer system depth encoding and decoding method
Assignee: Atlantic Richfield Co
•
Filing: 1992-10-23
•
Granted: 1993-04-20
•
Expires: 2012-10-23
Abstract
Abstract A method and an apparatus for recording the depth of a well logging apparatus is provided. The method and apparatus include the direct acquisition of broad depth information from the logging system conversion of the broad depth information to an acceptable digital signal and recording that signal on the audio track of a video cassette recorder. A microcontroller is used to convert broad depth information from either the logging system or the video cassette recorder (in the playback mode) to actual depth and depth rate for use by other displays and plotters.
Inventors
- 👤 Donald G. Kyle
- 👤 William P. Goodwill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:42
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/52; G01V11/00; G01V11/002
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
79 words
A method for continuously recording corresponding depth information synchronously with the data from a well logging system, comprising: (a) providing a data signal having a synchronizing pulse; (b) providing a depth signal having the same synchronizing pulse; (c) recording said data signal on a video channel of a video recorder; and (d) recording said depth signal and the synchronizing pulse on a single audio channel of the same recorder after a predetermined time-delay following occurrence of the synchronizing pulse.
Claim 2
Independent Claim
79 words
A method for continuously recording corresponding depth information synchronously with the data from a well logging system, comprising: (a) providing a data signal having a synchronizing pulse; (b) providing a depth signal having the same synchronizing pulse; (c) recording said data signal on a video channel of a video recorder; and (d) recording said depth signal and the synchronizing pulse on a single audio channel of the same recorder after a predetermined time-delay following occurrence of the synchronizing pulse.
Claim 3
Dependent Claim
31 words
The method of claim 1 wherein said step of providing a depth signal further comprises integrating a plurality of electrical pulses and providing a first digital signal output corresponding to depth.
Claim 4
Dependent Claim
19 words
The method of claim 1 wherein said step of providing a depth signal includes providing an audio frequency signal.
Claim 5
Dependent Claim
25 words
The method of claim 1 wherein said step of providing a depth signal includes providing a signal having a frequency between 100 and 20,000 Hz.
Claim 6
Dependent Claim
22 words
The method of claim 1 wherein said step of providing a depth signal includes providing a signal having a frequency 4800 Hz.
Claim 7
Dependent Claim
22 words
The method of claim 1 wherein said step of providing a depth signal further comprises generating a digital signal having 5 cells.
Claim 8
Dependent Claim
23 words
The method of claim 1 wherein said step of generating further comprises providing a digital signal wherein a first cell provides a preamble.
Claim 9
Dependent Claim
26 words
The method of claim 1 wherein said step of generating further comprises providing a digital signal wherein a second, third and fourth cells provide depth bytes.
Claim 10
Dependent Claim
27 words
The method of claim 1 wherein said step of generating further comprises providing a digital signal wherein each cell provides two stop bits and eight data bits.
Claim 11
Dependent Claim
18 words
The method of claim 1 wherein one of said cells provides gamma ray information for nuclear well logging.
Claim 12
Independent Claim
83 words
A method for recording data and depth signals for a well logging system on a video cassette recorder, comprising: (a) recording a data signal corresponding to a given depth on a video channel of a recorder; (b) recording a synchronizing pulse corresponding to a predetermined azimuthal location on a first audio channel; and (c) recording a depth signal corresponding to a depth to which the data signal corresponds on the first audio channel after a predetermined time-delay following occurrence of the synchronizing pulse.
Claim 13
Independent Claim
83 words
A method for recording data and depth signals for a well logging system on a video cassette recorder, comprising: (a) recording a data signal corresponding to a given depth on a video channel of a recorder; (b) recording a synchronizing pulse corresponding to a predetermined azimuthal location on a first audio channel; and (c) recording a depth signal corresponding to a depth to which the data signal corresponds on the first audio channel after a predetermined time-delay following occurrence of the synchronizing pulse.
Claim 14
Independent Claim
102 words
A method for recording data and depth signals for a well logging system on a video cassette recorder including recording a data signal corresponding to a given depth on a video channel of a recorder and recording a synchronizing pulse corresponding to a predetermined azimuthal location and time on a first audio channel wherein the improvement comprises: recording a digital depth signal to which the data signal corresponds after a predetermined time-delay following occurrence of the synchronizing pulse on the first audio channel thereby allowing he use of other channels of the video cassette recorder to be used for recording additional data.
Claim 15
Independent Claim
102 words
A method for recording data and depth signals for a well logging system on a video cassette recorder including recording a data signal corresponding to a given depth on a video channel of a recorder and recording a synchronizing pulse corresponding to a predetermined azimuthal location and time on a first audio channel wherein the improvement comprises: recording a digital depth signal to which the data signal corresponds after a predetermined time-delay following occurrence of the synchronizing pulse on the first audio channel thereby allowing he use of other channels of the video cassette recorder to be used for recording additional data.
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) | 1996-04-19 | 1996-10-19 | 1997-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-19 | 2000-10-19 | 2001-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-19 | 2004-10-19 | 2005-04-20 | $7700.00 | Window Closed / Lapsed |