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7301472 |
Big bore transceiver
In a subterranean well completion a bi-directional signal transmission system includes an in-line acoustic transceiver mounted in a tubing string extending through the wellbore, the transceiver...
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7224289 |
Slickline data transmission system
A slickline data transmission system for a high pressure oil-field well comprises inductive couplers at opposite ends of a slickline in order to establish real-time radio communication between...
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7224288 |
Link module for a downhole drilling network
A repeater is disclosed in one embodiment of the present invention as including a cylindrical housing, characterized by a proximal end and a distal end, and having a substantially cylindrical wall,...
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7193526 |
Downhole tool
A double shouldered downhole tool connection comprises box and pin connections having mating threads intermediate mating primary and secondary shoulders. The connection further comprises a...
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7170423 |
Electromagnetic MWD telemetry system incorporating a current sensing transformer
An electromagnetic telemetry system for transmitting data from a downhole assembly, which is operationally attached to a drill string, to a telemetry receiver system. The data are typically...
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7148812 |
System for use in controlling a hydrocarbon production well
A system for use in controlling a hydrocarbon production well has a: computer at a control location remote from a well tree of the well. A processor at the well tree applies control signals to and...
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6970099 |
Apparatus, system, and method for detecting and reimpressing electrical charge disturbances on a drill-pipe
A signal repeater, a system utilizing one or more signal repeaters, and a method for detecting a transient disturbance in the surface charge on drill pipe, which system, apparatus and method are...
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6798350 |
Method for repeating messages in long intelligent completion system lines
A method for two-way communication for controlling production from a formation having at least one producing well and a plurality of producing zones. In one embodiment, the method comprises...
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6464011 |
Production well telemetry system and method
A downhole production well control system is provided for automatically controlling downhole tools in response to sensed selected downhole parameters. The production well having a production tubing...
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6462672 |
Data acquisition apparatus
There is provided a data acquisition apparatus for use in a wellbore, having a receiver attached to an elongate electrical connector for conveying signals from downhole to surface, and a plurality...
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6369718 |
Oil well monitoring and control system communication network
A method and apparatus for implementing a communication network for well monitoring and control applications where a twisted pair cable bus is used to connect well-related locations. The twisted...
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6218959 |
Fail safe downhole signal repeater
A system and method of fail safe communication of information between surface equipment and downhole equipment are disclosed. The system comprises two or more repeaters (34, 35, 36) disposed within...
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6177882 |
Electromagnetic-to-acoustic and acoustic-to-electromagnetic repeaters and methods for use of same
A downhole communications system including an electromagnetic-to-acoustic signal repeater (35) for communicating information between surface equipment and downhole equipment and a method for use of...
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6160492 |
Through formation electromagnetic telemetry system and method for use of the same
An electromagnetic telemetry system for changing the operational state of a downhole device (84) disclose. The system comprises an electromagnetic transmitter (76) disposed in a first wellbore (30)...
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6144316 |
Electromagnetic and acoustic repeater and method for use of same
An electromagnetic and acoustic signal repeater (34) for communicating information between surface equipment and downhole equipment and a method for use of the repeater (34) is disclosed. The...
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6075462 |
Adjacent well electromagnetic telemetry system and method for use of the same
An adjacent well telemetry system for changing the operational state of a downhole device and a method for use of the system is disclosed. The system comprises an electromagnetic transmitter...
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6075461 |
Disposable electromagnetic signal repeater
An apparatus, method and system for communicating information between downhole equipment (40) and surface equipment is disclosed. The electromagnetic signal repeater apparatus (34, 36) comprises a...
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5942990 |
Electromagnetic signal repeater and method for use of same
A downhole electromagnetic signal repeater (76) for communicating information between surface equipment and downhole equipment and a method for use of the repeater (76) is disclosed. The repeater...
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5914911 |
Method of recovering data acquired and stored down a well, by an acoustic path, and apparatus for implementing the method
In a well (10) in production or undergoing tests, the recovery of data acquired and stored in a downhole unit (16) located in the lower part of a drillpipe string (12) below a test valve (20) is...
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4845493 |
Well bore data transmission system with battery preserving switch
An improved method and apparatus of transmitting data signals within a well bore having a string of tubular members suspended within it, employing an electromagnetic field producing means to...
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4788544 |
Well bore data transmission system
An improved method and apparatus of transmitting data signals within a well bore having a string of tubular members suspended within it, employing an electromagnetic field producing means to...
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4584675 |
Electrical measuring while drilling with composite electrodes
Discloses a two-way telemetry system and method for transmitting data taken at the bottom of a well bore to the earth's surface with one part of the telemetry circuit being the metallic drilling...
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4532614 |
Wall bore electrical generator
Discloses a well bore electrical generator for a subsurface measuring system incorporating a rotary liquid seal protection system adapted to be actuated by flow of drilling mud through the drill...
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4220381 |
Drill pipe telemetering system with electrodes exposed to mud
A drill string telemetry system of the hard-wired type wherein a separate conductor extends through each section of the drill pipe. The conductor is connected to connectors located in the ends of...
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4215426 |
Telemetry and power transmission for enclosed fluid systems
The system is described in connection with the control of downhole oil well drilling tools or instruments used in the oil drilling industry. Control wiring extends through the drill pipe employing...
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4087781 |
Electromagnetic lithosphere telemetry system
A lithospheric electromagnetic telemetry system specifically adapted for telemetry of oil well drilling parameters from well bottom to surface of the earth. Sensors measure such parameters as...
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4072923 |
Multichannel seismic telemeter system and array former
It is a purpose of this invention to dispose a large number, such as 500, of elemental seismic sensor units over the earth's surface in a desired pattern. The sensors are arranged preferably in a...
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4000645 |
Apparatus for pneumatically monitoring conditions of a well circulating system
Pneumatic apparatus for monitoring conditions of the drilling fluid circulating system of a well being drilled. A pneumatic signal having unequal duration times and representative of the rate of...
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3340500 |
System with electrical utilization device having main energization conductors over which information signals are also transferred
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3320803 |
Self-contained well logging apparatus with magnetic storage of information
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3186222 |
Well signaling system
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3560915 |
Title is not available
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