US3837223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatuses for transmitting data up a drill string
Assignee: Texaco Inc
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Filing: 1973-05-24
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Granted: 1974-09-24
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Expires: 1993-05-24
Abstract
Abstract Methods and at least one mechanism for carrying out each of the methods are disclosed. A method of (1) generating time modulated torque pulses by engaging and disengaging a mud turbine driven rotating torque generator in the bottom of a wellbore, and (2) monitoring the top of the drill string for the torque pulses therein may be practiced by a mud driven turbine inertial wheel for being momentarily and precisely braked or declerated relative to a drill collar on the lower end of a drill string in a wellbore while drilling for generating the time modulated torque pulses in the drill string for being monitored at the surface. Mechanical, electrical and fluid operated brakes and a mud turbine driven generator are disclosed for providing power to a motor at the bottom of the drill string or for being intermittently braked rapidly for generating the torque pulses.
Inventors
- 👤 A Richter
- 👤 Evers W Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:14
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/12; E21B47/14; E21B47/16
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
78 words
A method for transmitting data from the bottom of a drill string in a wellbore during drilling thereof to the top of the drill string comprising the steps of, a. generating data by measuring preselected subsurface parameters, b. generating torque pulses relative to the data by intermittently braking a mud turbine driven rotating torque pulse generator in the lower end of the drill string, and c. monitoring the top of the drill string for the torque pulses therein.
Claim 2
Independent Claim
78 words
A method for transmitting data from the bottom of a drill string in a wellbore during drilling thereof to the top of the drill string comprising the steps of, a. generating data by measuring preselected subsurface parameters, b. generating torque pulses relative to the data by intermittently braking a mud turbine driven rotating torque pulse generator in the lower end of the drill string, and c. monitoring the top of the drill string for the torque pulses therein.
Claim 3
Dependent Claim
39 words
A method as recited in claim 1 wherein the second step comprises, a. braking a mud turbine driven rotating inertial wheel on the lower end of the rotating drill string for generating the torque pulses in the drill string.
Claim 4
Dependent Claim
63 words
A method as recited in claim 1 wherein the second step comprises, a. intermittently decelerating a mud turbine driven rotating inertial wheel in a drill collar on the lower end of the rotating drill string, and b. controlling the intermittent deceleration of the mud turbine driven rotating inertial wheel relative to the drill string for generating the torque pulses in the drill string.
Claim 5
Dependent Claim
30 words
A method as recited in claim 1 wherein the third step comprises, a. monitoring the time modulation of the torque pulses in the drill string from the lower end thereof.
Claim 6
Independent Claim
84 words
A method for transmitting data from a drill collar in the bottom of a drill string in a wellbore during drilling thereof to the top of the drill string comprising the steps of, a. generating data by measuring preselected subsurface parameters, b. interrupting the turning of a mud turbine driven rotating inertial wheel in the drill collar during drilling to generate torque pulses in the drill string relative to the data, and c. monitoring the torque pulses in the top of the drill string.
Claim 7
Independent Claim
84 words
A method for transmitting data from a drill collar in the bottom of a drill string in a wellbore during drilling thereof to the top of the drill string comprising the steps of, a. generating data by measuring preselected subsurface parameters, b. interrupting the turning of a mud turbine driven rotating inertial wheel in the drill collar during drilling to generate torque pulses in the drill string relative to the data, and c. monitoring the torque pulses in the top of the drill string.
Claim 8
Dependent Claim
39 words
A method as recited in claim 5 wherein the second step comprises, a. braking the mud turbine driven rotating inertial wheel on the lower end of the rotating drill string for generating the torque pulses in the drill string.
Claim 9
Dependent Claim
38 words
A method as recited in claim 5 wherein the third step comprises, a. monitoring the time modulation of the torque pulses in the drill string due to interruptions in the turning of the mud turbine driven inertial wheel.
Claim 10
Dependent Claim
66 words
A method as recited in claim 5 wherein the second method step comprises the two steps of, a. rotating the turbine driven rotatable inertial wheel relative to the drill collar with drilling mud flowing through the drill string and drill collar, and b. decelerating the mud turbine driven rotating inertial wheel by momentarily braking the rotating inertial wheel to generate torque pulses in the drill string.
Claim 11
Dependent Claim
27 words
A method as recited in claim 8 wherein the second method step comprises, a. momentarily braking the mud turbine driven rotating inertial wheel with a mechanical clutch.
Claim 12
Dependent Claim
27 words
A method as recited in claim 8 wherein the second method step comprises, a. intermittently braking the mud turbine driven rotating inertial wheel with an electrical clutch.
Claim 13
Dependent Claim
28 words
A method as recited in claim 8 wherein the second method step comprises, a. intermittently braking the mud turbine driven rotating inertial wheel with a fluid operated clutch.
Claim 14
Independent Claim
81 words
A system for transmission of data from the lower end of a drill string in a wellbore during drilling to the top of the wellbore comprising, a. mud turbine driven inertial wheel torque pulse generating means on the lower end of a drill string for generating torque pulses in said drill string relative to measured preselected subsurface parameters, and b. monitoring means on the upper end of said drill sTring for monitoring said drill bit torque pulses in said drill string.
Claim 15
Independent Claim
81 words
A system for transmission of data from the lower end of a drill string in a wellbore during drilling to the top of the wellbore comprising, a. mud turbine driven inertial wheel torque pulse generating means on the lower end of a drill string for generating torque pulses in said drill string relative to measured preselected subsurface parameters, and b. monitoring means on the upper end of said drill sTring for monitoring said drill bit torque pulses in said drill string.
Claim 16
Dependent Claim
65 words
A system as recited in claim 12 wherein the rotating inertial wheel torque pulse generating means comprises, a. controllable braking means between said mud turbine driven rotating inertial wheel means and said drill string for controlled braking and varying the rotation of said mud turbine driven rotating inertial wheel means relative to said drill string for generating time modulated torque pulses in said drill string.
Claim 17
Dependent Claim
44 words
A data transmission system as recited in claim 13 wherein, a. said controllable braking means comprises a magnetic controllable braking means for being intermittently activated for braking and varying the rotation of said rotating inertial wheel means for generating said time modulated torque pulses.
Claim 18
Dependent Claim
35 words
A data transmission system as recited in claim 13 wherein, a. said controllable braking means is a fluid braking device connected between said mud turbine driven rotating inertial wheel means and said drill string means.
Claim 19
Dependent Claim
35 words
A data transmission system as recited in claim 13 wherein, a. said controllable braking means is a mechanical braking device connected between said mud turbine driven rotating inertial wheel means and said drill string means.
Claim 20
Dependent Claim
158 words
A data transmission system for monitoring wellbore drilling comprising, a. drill string means for the wellbore having a lower end and an upper end, b. pump means for circulating drilling mud downwardly and internally of said drill string from said upper end to said lower end, c. mud turbine driven rotating inertial wheel means for the lower end of said drill string means for being rotated by said downwardly circulating drilling mud, d. controllable braking means between said mud turbine driven rotating inertial wheel means and said drill string means for controlled periodically braking said rotating inertia wheel means for generating time modulated torque pulses in said drill string, e. torque monitoring means at the upper end of said drill string means, and f. said torque monitoring means being responsive to said control braking means for monitoring the time modulation of said torque pulses in said drill string means from said mud turbine driven rotating inertial wheel means.
Claim 21
Dependent Claim
158 words
A data transmission system for monitoring wellbore drilling comprising, a. drill string means for the wellbore having a lower end and an upper end, b. pump means for circulating drilling mud downwardly and internally of said drill string from said upper end to said lower end, c. mud turbine driven rotating inertial wheel means for the lower end of said drill string means for being rotated by said downwardly circulating drilling mud, d. controllable braking means between said mud turbine driven rotating inertial wheel means and said drill string means for controlled periodically braking said rotating inertia wheel means for generating time modulated torque pulses in said drill string, e. torque monitoring means at the upper end of said drill string means, and f. said torque monitoring means being responsive to said control braking means for monitoring the time modulation of said torque pulses in said drill string means from said mud turbine driven rotating inertial wheel means.
References Cited (Backward Citations)
US3302457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |