Matches 1 - 50 out of 73 1 2 >
Match Document Document Title
7385523 Apparatus and method for downhole well equipment and process management, identification, and operation  
A method for operating a downhole tool. The method includes moving an instrument through a wellbore, and the instrument includes a first non-acoustic transponder that is adapted to detect...
7362235 Impedance-matched drilling telemetry system  
A downhole telemetry system that uses inductance or capacitance as a mode through which signal is communicated across joints between assembled lengths of pipe wherein efficiency of signal...
7336199 Inductive coupling system  
An inductive coupling system including a mandrel and an inner sleeve and outer housing that surround and rotate relative to the mandrel. The system also includes a mandrel electronics system and a...
7319410 Downhole transmission system  
A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in...
7312720 Multi-loop transmission system  
A transmission system between a voltage source and a wireline tool comprising a first loop to transmit a signal between the voltage source and the wireline tool. The first loop has a first...
7303007 Method and apparatus for transmitting sensor response data and power through a mud motor  
Apparatus and methods for establishing electrical communication between an instrument subsection disposed below a mud motor and an electronics sonde disposed above the mud motor in a drill string...
7283061 Method and system for performing operations and for improving production in wells  
A method for performing operations and for improving production in a well includes the steps of: providing radio identification devices at known locations in the well, and providing a reader device...
7283060 Control apparatus for automated downhole tools  
A method and apparatus for a computer controlled apparatus for use in wellbore completions. A touch-screen is provided that facilitates commands and information that is entered by an operator...
7277675 Array for the contact-less transmission of electrical signals or energy  
The invention is characterized by the provisions that each transmitter comprises an AC voltage or current source, respectively, as well as a plurality of inductive coupling elements supplied from...
7277026 Downhole component with multiple transmission elements  
A tubular component in a downhole tool string has a first end and a second end. The first end includes first and second inductive couplers, and the second end includes third and fourth inductive...
7277025 Telescopic data coupler  
A data coupler for use in transmitting data between mechanical parts which have a common axis and which are in relatively close engagement. The parts are adjustable relative to the other along the...
7268697 Laterally translatable data transmission apparatus  
A data transmission apparatus having first and second electrical conductors is disclosed. The first and second electrical conductors are disposed within recesses of a first and second complementary...
7248177 Down hole transmission system  
A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in...
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...
7168510 Electrical transmission apparatus through rotating tubular members  
The present invention provides an apparatus for the communication of power or data signals across the rotating gap of two tubular members, such as the stator and rotor of a mud motor, and between...
7158048 Identically programmed intelligent electrodes for use in geoelectrical surveys  
Apparatus for conducting geophysical surveys comprising a multiplicity of intelligent electrodes provided on a multi-conductor cable, for receiving a command signal in response to which...
7154413 Fused and sealed connector system for permanent reservoir monitoring and production control  
A connection system is provided for facilitating a downhole electrical reservoir monitoring and/or control system operated by a surface system. The connector system includes a set of fuses and a...
7154412 High-power well logging method and apparatus  
A power delivery system for a wireline tool includes two independent power transmission loops operating on a standard six-conductor cable. The two loops each connect directly to a respective...
7120564 Buried line locator with integral position sensing  
A device for detecting and compensating field distortion in underground line locators by means of mapping the field-strength of the field generated by electrical currents within the buried line....
7098802 Signal connection for a downhole tool string  
A signal transmission connection for a tool string used in exploration and production of natural resources, namely: oil, gas, and geothermal energy resources. The connection comprises first and...
7055592 Toroidal choke inductor for wireless communication and control  
An induction choke in a petroleum well where a voltage potential is developed across the choke to power and communicate with devices and sensors in the well. Preferably, the induction choke is a...
7053788 Transducer for downhole drilling components  
A robust transmission element for transmitting information between downhole tools, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks,...
7019665 Polished downhole transducer having improved signal coupling  
Apparatus and methods to improve signal coupling in downhole inductive transmission elements to reduce the dispersion of magnetic energy at the tool joints and to provide consistent impedance and...
6958704 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters  
A system and method of communicating among devices via a piping structure using at least one induction choke about the piping structure to route a time-varying current carrying communication...
6922059 Electric field sensor  
The invention is a detection system and in one embodiment uses inexpensive, miniaturized sensors for detecting electric field (E-field) disturbances. Such sensors are easily and covertly deployable...
6903660 Inductively-coupled system for receiving a run-in tool  
Systems and methods for downhole communication and measurement utilizing an improved metallic tubular having an elongated body with tubular walls and a central bore adapted to receive a run-in...
6888473 Repeatable reference for positioning sensors and transducers in drill pipe  
A drill pipe having a box end having a tapered thread, and an internal shoulder and an external face for engagement with a drill pipe pin end having a tapered mating thread, and an external...
6868040 Wireless power and communications cross-bar switch  
A petroleum well for producing petroleum products that incorporates a system adapted to controllably route communications and/or electrical power having a time-varying current through a piping...
6766141 Remote down-hole well telemetry  
The present invention includes an apparatus and method for telemetry communication with oil-well monitoring and recording instruments located in the vicinity of the bottom of gas or oil recovery...
6759968 Method and apparatus for determining position in a pipe  
A method and apparatus for determining position in a pipe provides for the precise determination of location and associated characteristics of each pipe joint of a well, cross country pipeline or...
6534986 Permanently emplaced electromagnetic system and method for measuring formation resistivity adjacent to and between wells  
Systems and methods for determining characteristics of geologic formations between conductively lined wellbores. At least one transmitter is axially disposed at a selected depth in a first wellbore...
6459383 Downhole inductively coupled digital electronic system  
A communication system between remote locations connected by a common wire conductor where AC power ( 40 ) is supplied from one location to one or more remote locations ( 32 and 34 ). At the...
6445307 Drill string telemetry  
A telemetry transmitter located in a portion of a drill string comprises an input for receiving and transmitting data obtained from at least one transducer arranged to sense a parameter of the...
6364620 Submersible pump containing two levels of moisture sensors  
A dual moisture alarm system for use in submersible pumps, including a pump housing, a motor for running the pump which includes a shaft attached to an impeller. Secured to and located within the...
6360820 Method and apparatus for communicating with downhole devices in a wellbore  
A system for use in a well such as an intelligent completion system, includes an electrical cable and a plurality of communication modules positioned in the well. At least a first one of the...
6271767 Inductively coupled underwater modem  
The present invention provides a subsurface instrument and a system for the collection and transmission of deep ocean data utilizing standard buoy mooring lines. The system includes a moored...
6230799 Ultrasonic downhole radiator and method for using same  
An apparatus for use down a bore hole to reduce the viscosity of a hydrocarbon-containing fluid in the bore hole. The apparatus includes a housing having a size for disposition in the bore hole. At...
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)...
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...
5959548 Electromagnetic signal pickup device  
An electromagnetic pickup device (64) for receiving electromagnetic signals (62) is disclosed that comprises an H-field probe (68) having an end (78) the is insertable into the earth (16) for...
5576703 Method and apparatus for communicating signals from within an encased borehole  
A method and apparatus for communicating signals from within an encased borehole including a wireless communications system for transmitting down-hole environmental data signals between a down-hole...
5565860 Underground information collecting apparatus having a noise cancel function  
In an underground information collecting apparatus which comprises a steel rod with an end to be inserted into the ground and which is for collecting on the ground underground information detected...
5521592 Method and apparatus for transmitting information relating to the operation of a downhole electrical device  
A method and apparatus for transmitting information relating to the operation of an electrical device disposed in a borehole, in which information picked up by at least one downhole sensor is...
5495237 Measuring tool for collecting down hole information and metering valve for producing mud-pulse used in the same  
A measuring tool for collecting down hole information, which essentially has a sensor sub including plural data collecting sensors secured at a forward portion of a drilling pipe and a sonde...
5455573 Inductive coupler for well tools  
An inductive coupling device for coaxially arranged tubular members where the members can be telescopically arranged and the liner member has a magnetic core assembly constructed from magnetic iron...
5394141 Method and apparatus for transmitting information between equipment at the bottom of a drilling or production operation and the surface  
Information can be transmitted between equipment at the bottom of a drilling operation and the surface. A transceiver is provided at the surface, and is connected to both the earth, or the bottom...
5359324 Well logging apparatus for investigating earth formations  
A logging-while-drilling system is disclosed in which a first subassembly is included near the drill bit, and this subassembly comprises a conducting body with measuring means disposed in it and a...
5358035 Control cartridge for controlling a safety valve in an operating well  
An operating well such as an oil well is provided with a safety valve in the tubing thereof. A control cartridge controls the safety valve under the command of control signals transmitted from the...
5278550 Apparatus and method for retrieving and/or communicating with downhole equipment  
Method and apparatus for fishing for and/or communicating with subsurface apparatus. In a preferred embodiment, a subsurface logging-while-drilling (LWD) or measuring-while-drilling (MWD) apparatus...
5268683 Method of transmitting data from a drillhead  
A method for remotely monitoring conditions such as carbon monoxide or methane gas concentration, longwall roof support pressure, machine parameters or uncut coal, trona or potash layer thickness...
Matches 1 - 50 out of 73 1 2 >