US3718204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display of borehole wall configuration
Assignee: Mobil Oil AS
•
Filing: 1971-01-18
•
Granted: 1973-02-27
•
Expires: 1991-01-18
Abstract
Abstract The specification discloses a borehole tool having a directional acoustic transducer which is rotated while logging and operated periodically to transmit acoustic pulses to the borehole wall and to detect reflected acoustic energy. Reflection signals are employed to produce an analog voltage having amplitude variations which are dependent upon the pulse travel time or distance between the transducer and the borehole wall. The analog voltage, in one embodiment, is combined with a sawtooth wave beam sweep of an oscilloscope and applied to one of the deflection plates to move a spot across the screen at a rate which varies as a function of distance between the transducer and the wall of the borehole. The electron beam is turned ON periodically at equally spaced time intervals during each beam sweep to produce trace patterns which are recorded in side-by-side relationship. Spots at the same time intervals across the trace patterns form clearly defined caliper traces having excursions indicative of the size of the borehole at different depths.
Inventors
- 👤 G Groenendyke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:22
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
164 words
A method of presenting data on a display medium, said data being obtained from cyclic scanning operations carried out, with scanning means, angularly around the wall of an aperture at a plurality of points and at each of a plurality of different positions along the direction of the axis of the aperture to obtain information about the configuration of the wall of the aperture, comprising the steps of: moving a visible spot to different positions along a predetermined path on said display medium once for each aperture scanning cycle, varying the rate at which said spot is moved to said positions along said path as a function of the distance between the scanning means and the wall of the aperture at each scanning point to produce a trace pattern of interest on said display medium for each aperture scanning cycle, and recording a plurality of said trace patterns in side-by-side relationship to form a display of the configuration of the wall of the aperture.
Claim 2
Independent Claim
164 words
A method of presenting data on a display medium, said data being obtained from cyclic scanning operations carried out, with scanning means, angularly around the wall of an aperture at a plurality of points and at each of a plurality of different positions along the direction of the axis of the aperture to obtain information about the configuration of the wall of the aperture, comprising the steps of: moving a visible spot to different positions along a predetermined path on said display medium once for each aperture scanning cycle, varying the rate at which said spot is moved to said positions along said path as a function of the distance between the scanning means and the wall of the aperture at each scanning point to produce a trace pattern of interest on said display medium for each aperture scanning cycle, and recording a plurality of said trace patterns in side-by-side relationship to form a display of the configuration of the wall of the aperture.
Claim 3
Independent Claim
167 words
A method oF presenting data on a display medium, said data being obtained from cyclic scanning operations carried out, with scanning means, angularly around the wall of an aperture at a plurality of points and at each of a plurality of different positions along the direction of the axis of the aperture to obtain information about the configuration of the wall of the aperture, comprising the steps of: moving a visible spot to different positions along a predetermined path on said display medium once for each aperture scanning cycle, varying the rate at which said spot is moved to said positions along said path as a function of the distance between the scanning means and the wall of the aperture at each scanning point to produce a trace pattern of interest on said display medium for each aperture scanning cycle, and continuously displaying said spot as it is moved along said path to produce a continuous trace pattern on said display medium for each borehole scanning cycle.
Claim 4
Independent Claim
167 words
A method oF presenting data on a display medium, said data being obtained from cyclic scanning operations carried out, with scanning means, angularly around the wall of an aperture at a plurality of points and at each of a plurality of different positions along the direction of the axis of the aperture to obtain information about the configuration of the wall of the aperture, comprising the steps of: moving a visible spot to different positions along a predetermined path on said display medium once for each aperture scanning cycle, varying the rate at which said spot is moved to said positions along said path as a function of the distance between the scanning means and the wall of the aperture at each scanning point to produce a trace pattern of interest on said display medium for each aperture scanning cycle, and continuously displaying said spot as it is moved along said path to produce a continuous trace pattern on said display medium for each borehole scanning cycle.
Claim 5
Dependent Claim
21 words
The method of claim 2 comprising the step of: periodically intensifying said spot at equally spaced time intervals along said path.
Claim 6
Dependent Claim
56 words
The method of claim 3 comprising the step of: recording a plurality of said trace patterns in side-by-side relationship whereby intensified spots at the same time intervals across said trace patterns form traces having excursions indicative of variations of the size of the aperture at different positions along the direction of the axis of the aperture.
Claim 7
Dependent Claim
32 words
The method of claim 2 comprising the step of: recording a plurality of said trace patterns in side-by-side relationship to form a display of the configuration of the wall of the aperture.
Claim 8
Independent Claim
154 words
A method of presenting data on a display medium, said data being obtained from cyclic scanning operations carried out, with scanning means, angularly around the wall of an aperture at a plurality of points and at each of a plurality of different positions along the direction of the axis of the aperture to obtain information about the configuration of the wall of the aperture, comprising the steps of: moving a visible spot to different positions along a predetermined path on said display medium once for each aperture scanning cycle, varying the rate at which said spot is moved to said positions along said path as a function of the distance between the scanning means and the wall of the aperture at each scanning point to produce a trace pattern of interest on said display medium for each aperture scanning cycle, and periodically displaying said spot only at equally spaced time intervals along said path.
Claim 9
Independent Claim
154 words
A method of presenting data on a display medium, said data being obtained from cyclic scanning operations carried out, with scanning means, angularly around the wall of an aperture at a plurality of points and at each of a plurality of different positions along the direction of the axis of the aperture to obtain information about the configuration of the wall of the aperture, comprising the steps of: moving a visible spot to different positions along a predetermined path on said display medium once for each aperture scanning cycle, varying the rate at which said spot is moved to said positions along said path as a function of the distance between the scanning means and the wall of the aperture at each scanning point to produce a trace pattern of interest on said display medium for each aperture scanning cycle, and periodically displaying said spot only at equally spaced time intervals along said path.
Claim 10
Dependent Claim
55 words
The method of claim 6 comprising the step of: recording a plurality of said trace patterns in side-by-side relationship whereby spots at the same time intervals across said trace patterns form traces having excursions indicative of variations of the size of the aperture at different positions along the direction of the axis of the aperture.
Claim 11
Independent Claim
211 words
A method of presenting borehole data on a display medium of a display system having an electron beam producing means and two deflection means for producing electron beam deflection fields, said data being obtained by rotating a scanning means in a borehole to cyclically scan the wall of the borehole at a plurality of different depths to obtain information about the configuration of the wall of the borehole, comprising the steps of: producing a sawtooth wave beam sweep once for each borehole scanning cycle, controlling said beam producing means to produce an electron beam at least at a plurality of equally spaced time intervals during each beam sweep to form a spot on said display medium at least at said plurality of equally spaced time intervals, applying said sawtooth wave beam sweep to one of said deflection means for moving said spot across said display medium during each beam sweep, producing an output which is a function of the distance between the scanning means and the wall of the borehole as the scanning means Is rotated, and applying said output to vary the deflection field of one of said deflection means to produce a trace pattern with said spot which reflects information about the configuration of the wall of the borehole.
Claim 12
Independent Claim
211 words
A method of presenting borehole data on a display medium of a display system having an electron beam producing means and two deflection means for producing electron beam deflection fields, said data being obtained by rotating a scanning means in a borehole to cyclically scan the wall of the borehole at a plurality of different depths to obtain information about the configuration of the wall of the borehole, comprising the steps of: producing a sawtooth wave beam sweep once for each borehole scanning cycle, controlling said beam producing means to produce an electron beam at least at a plurality of equally spaced time intervals during each beam sweep to form a spot on said display medium at least at said plurality of equally spaced time intervals, applying said sawtooth wave beam sweep to one of said deflection means for moving said spot across said display medium during each beam sweep, producing an output which is a function of the distance between the scanning means and the wall of the borehole as the scanning means Is rotated, and applying said output to vary the deflection field of one of said deflection means to produce a trace pattern with said spot which reflects information about the configuration of the wall of the borehole.
Claim 13
Independent Claim
190 words
A method of presenting borehole data on a display medium of a display system having an electron beam producing means and an electron beam deflection means, said data being produced by rotating a scanning means in a borehole to cyclically scan the wall of the borehole at a plurality of different depths to obtain information about the configuration of the wall of the borehole, comprising the steps of: producing a beam sweep once for each borehole scanning cycle, controlling said electron beam producing means to produce an electron beam to form a spot on said display medium, applying said beam sweep to said deflection means for moving said spot to different positions along a predetermined path once for each borehole scanning cycle, producing an output which is a function of the distance between the scanning means and the wall of the borehole as the scanning means is rotated, and combining said output with said beam sweep to vary the rate of travel of said spot along said path as a function of the distance between the scanning means and the wall of the borehole as the scanning means is rotated.
Claim 14
Independent Claim
190 words
A method of presenting borehole data on a display medium of a display system having an electron beam producing means and an electron beam deflection means, said data being produced by rotating a scanning means in a borehole to cyclically scan the wall of the borehole at a plurality of different depths to obtain information about the configuration of the wall of the borehole, comprising the steps of: producing a beam sweep once for each borehole scanning cycle, controlling said electron beam producing means to produce an electron beam to form a spot on said display medium, applying said beam sweep to said deflection means for moving said spot to different positions along a predetermined path once for each borehole scanning cycle, producing an output which is a function of the distance between the scanning means and the wall of the borehole as the scanning means is rotated, and combining said output with said beam sweep to vary the rate of travel of said spot along said path as a function of the distance between the scanning means and the wall of the borehole as the scanning means is rotated.
Claim 15
Independent Claim
255 words
A method of presenting borehole data on a display medium of a display system having an electron beam producing means and two deflection means for producing electron beam deflection fields, said data being obtained from cyclic scanning operations carried out angularly around the wall of a borehole at a plurality of different depths wherein: an energy transmitting and receiving means is rotated cyclically in a borehole and operated periodically during each cycle to transmit energy pulses to the borehole wall and to detect energy reflected from the borehole wall, and reflection signals are produced in response to reflected energy detected, said method comprising the steps of: producing a sawtooth wave beam sweep once for each borehole scanning cycle, controlling said electron beam producing means to produce an electron beam at least at a plurality of equally spaced time intervals during each beam sweep to form a spot on said display medium at least at said plurality of equally spaced time intervals, applying said sawtooth wave beam sweep to one of said deflection means for moving said spot across said display medium during each beam sweep, employing the reflection signals to produce an output which is a function of the distance between the transmitting and receiving means and the wall of the borehole as the transmitting and receiving means is rotated, and applying said output to vary the deflection field of one of said deflection means to produce a trace pattern with said spot which reflects information about the configuration of the wall of the borehole.
Claim 16
Independent Claim
255 words
A method of presenting borehole data on a display medium of a display system having an electron beam producing means and two deflection means for producing electron beam deflection fields, said data being obtained from cyclic scanning operations carried out angularly around the wall of a borehole at a plurality of different depths wherein: an energy transmitting and receiving means is rotated cyclically in a borehole and operated periodically during each cycle to transmit energy pulses to the borehole wall and to detect energy reflected from the borehole wall, and reflection signals are produced in response to reflected energy detected, said method comprising the steps of: producing a sawtooth wave beam sweep once for each borehole scanning cycle, controlling said electron beam producing means to produce an electron beam at least at a plurality of equally spaced time intervals during each beam sweep to form a spot on said display medium at least at said plurality of equally spaced time intervals, applying said sawtooth wave beam sweep to one of said deflection means for moving said spot across said display medium during each beam sweep, employing the reflection signals to produce an output which is a function of the distance between the transmitting and receiving means and the wall of the borehole as the transmitting and receiving means is rotated, and applying said output to vary the deflection field of one of said deflection means to produce a trace pattern with said spot which reflects information about the configuration of the wall of the borehole.
Claim 17
Dependent Claim
39 words
The method of claim 10 comprising the step of: applying said output and said sawtooth wave beam sweep to the same deflection means whereby said function varies the rate at which said spot is moved across said display medium.
Claim 18
Dependent Claim
38 words
The method of claim 11 comprising the step of: controlling said electron beam producing means to form said spot on said display medium only at a plurality of equally spaced time intervals during each sawtooth wave beam sweep.
Claim 19
Dependent Claim
30 words
The method of claim 11 comprising the step of: controlling said electron beam producing means to form said spot on said display medium continuously during each sawtooth beam wave sweep.
Claim 20
Dependent Claim
31 words
The method of claim 13 comprising the step of: intensifying the electron beam to a higher level at a plurality of equally spaced time intervals during each sawtooth wave beam sweep.
Claim 21
Dependent Claim
85 words
The method of claim 11 comprising the steps of: controlling said electron beam producing means to form said spot on said display medium continuously during each sawtooth wave beam swEep, applying said sawtooth wave beam sweep to one of said deflection means for moving said spot across said display medium during each beam sweep, and applying said output to the other of said deflection means for causing excursions of said spot to occur as it is moved across said display medium during each beam sweep.
Claim 22
Independent Claim
246 words
A method of logging a borehole for data and for presenting said data on a display medium of a display system having an electron beam producing means and two deflection means for producing electron beam deflection fields, comprising the steps of: cyclically rotating an energy transmitting and receiving means in said borehole at each of a plurality of different depths, periodically operating said energy transmitting and receiving means during each cycle to transmit energy pulses to the borehole wall and to detect energy reflected from the borehole wall, producing reflection signals in response to reflected energy detected, producing a sawtooth wave beam sweep once for each borehole scanning cycle, controlling said electron beam producing means to produce an electron beam at least at a plurality of equally spaced time intervals during each beam sweep to form a spot on said display medium at least at said plurality of equally spaced time intervals, applying said sawtooth wave beam sweep to one of said deflection means for moving said spot across said display medium during each beam sweep, employing the reflection signals to produce an output which is a function of the distance between the transmitting and receiving means and the wall of the borehole as the transmitting and receiving means is rotated, and applying said output to vary the deflection field of one of said deflection means to produce a trace pattern with said spot which reflects information about the configuration of the wall of the borehole.
Claim 23
Independent Claim
246 words
A method of logging a borehole for data and for presenting said data on a display medium of a display system having an electron beam producing means and two deflection means for producing electron beam deflection fields, comprising the steps of: cyclically rotating an energy transmitting and receiving means in said borehole at each of a plurality of different depths, periodically operating said energy transmitting and receiving means during each cycle to transmit energy pulses to the borehole wall and to detect energy reflected from the borehole wall, producing reflection signals in response to reflected energy detected, producing a sawtooth wave beam sweep once for each borehole scanning cycle, controlling said electron beam producing means to produce an electron beam at least at a plurality of equally spaced time intervals during each beam sweep to form a spot on said display medium at least at said plurality of equally spaced time intervals, applying said sawtooth wave beam sweep to one of said deflection means for moving said spot across said display medium during each beam sweep, employing the reflection signals to produce an output which is a function of the distance between the transmitting and receiving means and the wall of the borehole as the transmitting and receiving means is rotated, and applying said output to vary the deflection field of one of said deflection means to produce a trace pattern with said spot which reflects information about the configuration of the wall of the borehole.
Claim 24
Independent Claim
258 words
A system for recording borehole data obtained from cyclic scanning operations carried out angularly around the wall of a borehole at a plurality of different depths wherein: an energy transmitting and receiving means is rotated cyclically in a borehole and operated periodically during each cycle to transmit energy pulses to the borehole wall and to detect energy reflected from the borehole wall, and reflection signals are produced in response to reflected energy detected, said system comprising: a display system having a display medium, an electron beam producing means, and two deflection means for producing electron beam deflection fields, means for producing a sawtooth wave beam sweep once for each borehole scanning cycle, control means for controlling said electron beam producing means to produce an electron beam at least at a plurality of equally spaced time intervals during each beam sweep to form a spot on said display medium at least at said plurality of equally spaced time intervals, means for applying said sawtooth wave beam sweep to one of said deflection means for moving said spot across said display medium during each beam sweep, means for employing the reflection signals to produce an output which is a function of the distance between the transmitting and receiving means and the wall of the borehole as the transmitting and receiving means is rotated, and means for applying said output to vary the deflection field of one of said deflection means to produce a trace pattern with said spot which reflects information about the configuration of the wall of the borehole.
Claim 25
Independent Claim
258 words
A system for recording borehole data obtained from cyclic scanning operations carried out angularly around the wall of a borehole at a plurality of different depths wherein: an energy transmitting and receiving means is rotated cyclically in a borehole and operated periodically during each cycle to transmit energy pulses to the borehole wall and to detect energy reflected from the borehole wall, and reflection signals are produced in response to reflected energy detected, said system comprising: a display system having a display medium, an electron beam producing means, and two deflection means for producing electron beam deflection fields, means for producing a sawtooth wave beam sweep once for each borehole scanning cycle, control means for controlling said electron beam producing means to produce an electron beam at least at a plurality of equally spaced time intervals during each beam sweep to form a spot on said display medium at least at said plurality of equally spaced time intervals, means for applying said sawtooth wave beam sweep to one of said deflection means for moving said spot across said display medium during each beam sweep, means for employing the reflection signals to produce an output which is a function of the distance between the transmitting and receiving means and the wall of the borehole as the transmitting and receiving means is rotated, and means for applying said output to vary the deflection field of one of said deflection means to produce a trace pattern with said spot which reflects information about the configuration of the wall of the borehole.
Claim 26
Dependent Claim
78 words
The system of claim 17 comprising: means for combining said output and said beam sweep for application to one of said deflection means, said control means comprising: means for periodically producing pulses at equally spaced time intervals during each beam sweep, and means for synchronizing said pulses with the beginning of each beam sweep, said synchronized pulses being applied to said electron beam producing means for forming said spot on said display medium oNly at said time intervals.
Claim 27
Dependent Claim
58 words
The system of claim 17 comprising: means for combining said output and said beam sweep for application to one of said deflection means, said control means comprising means for controlling said electron beam producing means to continuously produce an electron beam during each beam sweep to continuously form said spot on said display medium during each beam sweep.
Claim 28
Dependent Claim
77 words
The system of claim 19 comprising: means for combining said output and said beam sweep for application to one of said deflection means, said control means comprising: means for periodically producing pulses at equally spaced time intervals during each beam sweep, and means for synchronizing said pulses with the beginning of each beam sweep, said synchronized pulses being applied to said electron beam producing means for intensifying said spot on said display medium at said time intervals.
Claim 29
Dependent Claim
64 words
The system of claim 17 wherein said control means comprises: means for controlling said electron beam producing means to continuously produce an electron beam during each beam sweep to continuously form said spot on said display medium during each beam sweep, said beam sweep being applied to one of said deflection means, and said output being applied to the other of said deflection means.
Claim 30
Independent Claim
265 words
A method of presenting borehole data on a display medium of a display system having an electron beam producing means and two deflection means for producing electron beam deflection fields, said data being obtained from cyclic scanning operations carried out angularly around the wall of a borehole at a plurality of different depths wherein: an energy transmitting and receiving means is rotated cyclically in a borehole and operated periodically during each cycle to transmit energy pulses to the borehole wall and to detect energy reflected from the borehole wall, and reflection signals are produced in response to reflected energy detected, said method comprising the steps of: producing a sawtooth wave beam sweep once for each borehole scanning cycle, applying said sawtooth wave beam sweep to one of said deflection means for moving a spot, formed on said display medium by an electron beam, across said display medium during each beam sweep, employing the reflection signals to produce a function having an amplitude representative of the distance between the transmitting and receiving means and the wall of the borehole as the transmitting and receiving means is rotated, producing a resultant function by removing low frequency components from said function to remove slow changes in amplitude due to slow changes in the distance between the transmitting and receiving means and the wall of the borehole as sensed by the transmitting and receiving means as it is rotated, and employing said resultant function to produce a trace pattern on said display medium for each beam sweep which reflects information about the configuration of the wall of the borehole.
Claim 31
Independent Claim
265 words
A method of presenting borehole data on a display medium of a display system having an electron beam producing means and two deflection means for producing electron beam deflection fields, said data being obtained from cyclic scanning operations carried out angularly around the wall of a borehole at a plurality of different depths wherein: an energy transmitting and receiving means is rotated cyclically in a borehole and operated periodically during each cycle to transmit energy pulses to the borehole wall and to detect energy reflected from the borehole wall, and reflection signals are produced in response to reflected energy detected, said method comprising the steps of: producing a sawtooth wave beam sweep once for each borehole scanning cycle, applying said sawtooth wave beam sweep to one of said deflection means for moving a spot, formed on said display medium by an electron beam, across said display medium during each beam sweep, employing the reflection signals to produce a function having an amplitude representative of the distance between the transmitting and receiving means and the wall of the borehole as the transmitting and receiving means is rotated, producing a resultant function by removing low frequency components from said function to remove slow changes in amplitude due to slow changes in the distance between the transmitting and receiving means and the wall of the borehole as sensed by the transmitting and receiving means as it is rotated, and employing said resultant function to produce a trace pattern on said display medium for each beam sweep which reflects information about the configuration of the wall of the borehole.
Claim 32
Dependent Claim
23 words
The method of claim 22 comprising the step of: filtering said function to remove said low frequency components to produce said resultant function.
Claim 33
Dependent Claim
53 words
The method of claim 23 comprising the steps of: employing said reflection signals to sample said resultant function at times corresponding to the reception of reflected energy for the production of output pulses, and applying said output pulses to said electron beam producing means to control the intensity of the electron beam produced.
References Cited (Backward Citations)
US3369626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |