US3813656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatuses for transmission of longitudinal and torque pulse data from drill string in well while drilling
Assignee: Texaco Inc
•
Filing: 1972-09-29
•
Granted: 1974-05-28
•
Expires: 1992-09-29
Abstract
Abstract Two methods and two mechanisms for carrying out the methods are disclosed. The methods of (1) generating longitudinal or torque pulses at the lower end of a drilling assembly in the bottom of a wellbore at the natural frequency of the drilling assembly, and (2) monitoring the top of the drilling assembly for the longitudinal or torque pulses therein may be practiced by (1) a drill collar rotatably and detachably mounted on a drill bit on the lower end of a drilling assembly in a wellbore for being momentarily and precisely coupled and uncoupled during drilling for generation of longitudinal pulses in the drilling assembly at the natural frequency of the drilling assembly for being monitored at the surface, and (2), respectively, a drill collar rotatable by a plurality of controllable jets exhausting tangentially of the drill collar outer periphery for generating torque pulses in the drilling assembly at the natural frequency thereof for being monitored at the surface.
Inventors
- 👤 J Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:45
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/12; E21B47/14; E21B47/16; G; G01; G01V; G01V11/00; G01V11/002
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
138 words
A method for transmission of data from the bottom portion of a drilling assembly including a drill collar rotatable on a drill bit to a detector at the surface while drilling a wellbore comprising the steps of, a. measuring data on the bottom portion of the drilling assembly, b. forming a bump on the upper end of the drill bit, c. forming a roller on the lower end of the drill collar for rolling over the bump as the drill collar rotates relative to said drill bit, d. rotating the roller over the bump for generating longitudinal pulses in the bottom of the drilling assembly at the longitudinal natural frequency of the drilling assembly, and e. modulating the time duration of the generated longitudinal pulses proportional to the measured data for receiving at the surface of the wellbore.
Claim 2
Independent Claim
138 words
A method for transmission of data from the bottom portion of a drilling assembly including a drill collar rotatable on a drill bit to a detector at the surface while drilling a wellbore comprising the steps of, a. measuring data on the bottom portion of the drilling assembly, b. forming a bump on the upper end of the drill bit, c. forming a roller on the lower end of the drill collar for rolling over the bump as the drill collar rotates relative to said drill bit, d. rotating the roller over the bump for generating longitudinal pulses in the bottom of the drilling assembly at the longitudinal natural frequency of the drilling assembly, and e. modulating the time duration of the generated longitudinal pulses proportional to the measured data for receiving at the surface of the wellbore.
Claim 3
Independent Claim
157 words
A system for transmission of data from the lower end of a drill string of a drilling assembly in a wellbore to the top of the wellbore during drilling comprising, a. a drill string including a drill collar means rotatably mounted on a drill bit means, b. said drill bit means having a bump on the top thereof and said drill collar means having a roller on the bottom thereof for rolling over said bump, c. data measuring means on the lower end of said drill string, d. said drill bit means and said drill collar means comprising drill bit longitudinal pulse generating means on the lower end of said drill string for generating longitudinal pulses in said drill string at the longitudinal natural frequency of the drilling assembly proportional to the measured data, and e. monitoring means on the upper end of said drill string for monitoring said drill bit longitudinal pulses in said drill string.
Claim 4
Independent Claim
157 words
A system for transmission of data from the lower end of a drill string of a drilling assembly in a wellbore to the top of the wellbore during drilling comprising, a. a drill string including a drill collar means rotatably mounted on a drill bit means, b. said drill bit means having a bump on the top thereof and said drill collar means having a roller on the bottom thereof for rolling over said bump, c. data measuring means on the lower end of said drill string, d. said drill bit means and said drill collar means comprising drill bit longitudinal pulse generating means on the lower end of said drill string for generating longitudinal pulses in said drill string at the longitudinal natural frequency of the drilling assembly proportional to the measured data, and e. monitoring means on the upper end of said drill string for monitoring said drill bit longitudinal pulses in said drill string.
Claim 5
Dependent Claim
78 words
A system as recited in Claim 2 wherein the drill bit longitudinal pulse generating means comprises, a. controllable coupling means between said drill bit means and said drill string, b. control means for said controllable coupling means, and c. said coupling means being responsive to said control means for controlled coupling and uncoupling of said drill bit means from said drill string for generating said drill bit torque pulses at the longitudinal natural frequency of the drilling assembly.
Claim 6
Independent Claim
93 words
A method for transmission of data from the bottom of a drilling assembly to the surface while drilling a wellbore comprising the steps of, a. measuring data at the bottom of the drilling assembly, b. determining the natural frequency of the drilling assembly, and c. ejecting dRilling fluid from a nozzle tangentially from the outer periphery of the bottom of the drilling assembly for generating torque pulses relative to the measured data in the drilling assembly at the torsional natural frequency of the drilling assembly for receiving at the surface of the wellbore.
Claim 7
Independent Claim
93 words
A method for transmission of data from the bottom of a drilling assembly to the surface while drilling a wellbore comprising the steps of, a. measuring data at the bottom of the drilling assembly, b. determining the natural frequency of the drilling assembly, and c. ejecting dRilling fluid from a nozzle tangentially from the outer periphery of the bottom of the drilling assembly for generating torque pulses relative to the measured data in the drilling assembly at the torsional natural frequency of the drilling assembly for receiving at the surface of the wellbore.
Claim 8
Independent Claim
116 words
A system for transmission of data from the lower end of a drill string of a drilling assembly in a wellbore to the top of the wellbore during drilling comprising, a. data measuring means on the lower end of the drill string, b. drill collar torque pulse generating means also on the lower end of a drill string for generating torque pulses in said drill string at the torsional natural frequency of the drilling assembly, and c. said controllable torque pulse generating means comprises a controlled valve operated nozzle for ejecting drilling fluid tangential to said drill string for generating torque pulses proportional to the measured data at the torsional natural frequency of the drilling assembly.
Claim 9
Independent Claim
116 words
A system for transmission of data from the lower end of a drill string of a drilling assembly in a wellbore to the top of the wellbore during drilling comprising, a. data measuring means on the lower end of the drill string, b. drill collar torque pulse generating means also on the lower end of a drill string for generating torque pulses in said drill string at the torsional natural frequency of the drilling assembly, and c. said controllable torque pulse generating means comprises a controlled valve operated nozzle for ejecting drilling fluid tangential to said drill string for generating torque pulses proportional to the measured data at the torsional natural frequency of the drilling assembly.
Claim 10
Independent Claim
108 words
A system for transmission of data from the lower end of a drill string of a drilling assembly in a wellbore to the top of the wellbore during drilling comprising, a. data measuring means on the lower end of the drill string, b. drill collar in the drill string, c. controllable torque pulse generating ejection nozzle means on said drill collar, d. control means for said controllable torque pulse generating ejection nozzle means, and e. said controllable torque pulse generating ejection nozzle means being responsive to said control means for generating said torque pulses relative to the measured data at the torsional natural frequency of the drilling assembly.
Claim 11
Independent Claim
108 words
A system for transmission of data from the lower end of a drill string of a drilling assembly in a wellbore to the top of the wellbore during drilling comprising, a. data measuring means on the lower end of the drill string, b. drill collar in the drill string, c. controllable torque pulse generating ejection nozzle means on said drill collar, d. control means for said controllable torque pulse generating ejection nozzle means, and e. said controllable torque pulse generating ejection nozzle means being responsive to said control means for generating said torque pulses relative to the measured data at the torsional natural frequency of the drilling assembly.
Claim 12
Independent Claim
107 words
A method for transmission of data from the bottom of a drill string including a drill collar to a detector at the surface while drilling a wellbore comprising the steps of, a. measuring data at the bottom of the drill string, b. forming a drilling mud ejecting nozzle in the drill collar for controlled ejecting of drilling mud tangentially to the outer periphery of the drill collar, c. ejecting the drilling mud in torque pulses at the torsional natural frequency of the drill string, d. modulating the time duration of the generated torque pulses relative to the measured data for receiving at the surface of the wellbore.
Claim 13
Independent Claim
107 words
A method for transmission of data from the bottom of a drill string including a drill collar to a detector at the surface while drilling a wellbore comprising the steps of, a. measuring data at the bottom of the drill string, b. forming a drilling mud ejecting nozzle in the drill collar for controlled ejecting of drilling mud tangentially to the outer periphery of the drill collar, c. ejecting the drilling mud in torque pulses at the torsional natural frequency of the drill string, d. modulating the time duration of the generated torque pulses relative to the measured data for receiving at the surface of the wellbore.
Claim 14
Independent Claim
182 words
A system for transmission of data in a drilling assembly from the bottom of a wellbore to the top of the wellbore while drilling comprising, a. a drilling assembly for being lowered into a wellbore including a drill bit at the bottom with a drill collar connected between said drill bit and a string of drill pipes to the surface, and means on the surface for rotating said drill pipes, b. data measuring means on the lower end of said drilling assembly, c. fluid nozzle means projecting tangentially from the periphery of said drill collar for generating torque forces in the bottom of said drill pipes at the natural frequency of the drilling assembly, d. control means for said fluid nozzle means for modulating the pulses generated relative to data to be transmitted to the surface, e. torque pulse monitoring means at the top of the drill pipes, and f. said torque pulse monitoring means being responsive to said modulated pulses in said drill pipes for monitoring said data at the surface from said control means at the bottom of the wellbore.
Claim 15
Independent Claim
182 words
A system for transmission of data in a drilling assembly from the bottom of a wellbore to the top of the wellbore while drilling comprising, a. a drilling assembly for being lowered into a wellbore including a drill bit at the bottom with a drill collar connected between said drill bit and a string of drill pipes to the surface, and means on the surface for rotating said drill pipes, b. data measuring means on the lower end of said drilling assembly, c. fluid nozzle means projecting tangentially from the periphery of said drill collar for generating torque forces in the bottom of said drill pipes at the natural frequency of the drilling assembly, d. control means for said fluid nozzle means for modulating the pulses generated relative to data to be transmitted to the surface, e. torque pulse monitoring means at the top of the drill pipes, and f. said torque pulse monitoring means being responsive to said modulated pulses in said drill pipes for monitoring said data at the surface from said control means at the bottom of the wellbore.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |