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| Number | Title | Issue Date |
| 7777643 | Optical communications with a bottom hole assembly One embodiment includes an apparatus that includes a storage medium to store data. The apparatus also includes a connector having an optical interface for data communication, coupled to the storage medium, to communicate in a combustible gas environment. ... | 08/17/2010 |
| 7274304 | System for loading executable code into volatile memory in a downhole tool A system for loading an executable code into volatile memory in a downhole tool string component comprises a surface control unit comprising executable code. An integrated downhole network comprises data transmission elements in communication with the surface contro... | 09/25/2007 |
| 7230542 | Streamlining data transfer to/from logging while drilling tools The invention provides a more efficient way to transfer data to or from a logging tool during a drilling process. A memory module is provided for rapid insertion and retrieval from a logging while drilling tool between drilling runs. The memory module records and st... | 06/12/2007 |
| 7182141 | Expander tool for downhole use An expander tool for expanding a first tubular into a second surrounding tubular within a wellbore. The expander tool first comprises a body. Within the body is an expansion member capable of being actuated outwardly from the body when expansion of the first tubular... | 02/27/2007 |
| 7139218 | Distributed downhole drilling network A high-speed downhole network providing real-time data from downhole components of a drilling strings includes a bottom-hole node interfacing to a bottom-hole assembly located proximate the bottom end of a drill string. A top-hole node is connected proximate the top... | 11/21/2006 |
| 7030617 | System, apparatus, and method for conducting electromagnetic induction surveys A method is provided for conducting an electromagnetic induction survey of a geological formation penetrated by a borehole lined with a conductive casing. The method includes positioning a transmitter in the borehole, whereby the transmitter generates a transmitter ... | 04/18/2006 |
| 6976535 | Method of utilizing flowable devices in wellbores Flowable devices provide communicate between surface and downhole instruments. The flowable devices having unique addresses are introduced into the flow of a fluid flowing in the wellbore. The flowable devices are used for providing information to a downhole control... | 12/20/2005 |
| 6957147 | Data management for seismic acquisition using variable compression ratio as a function of background noise A seismic data acquisition unit includes a data acquisition and digital circuit which receives an analog seismic signal and digitizes the signal. The digitized seismic data uses data telemetry and a repeater device to receive the compressed data and transmit the com... | 10/18/2005 |
| 6898149 | Reprogrammable downhole telemetry and control system A reprogrammable data communications system for use in a gas or oil well borehole is disclosed. The borehole includes a casing and a piping structure therein and at least one downhole equipment module located therein. The system provides for data and control signals... | 05/24/2005 |
| 6850161 | Systems and methods for identifying and mapping conduit location A system (100) for mapping an underground object (145) includes a conduit location recording device 105 and a server (115). The conduit location recording device (105) senses an underground object (145), a unique identifier ... | 02/01/2005 |
| 6630890 | Methods, systems and tools for borehole logging A borehole logging tool system includes a surface system, a logging array, and a logging cable providing power supply and data paths connecting the logging array to the surface system, wherein the logging array includes a series of discrete sondes connect... | 10/07/2003 |
| 6373396 | Method for predicting seismic events A method for predicting seismic events wherein measurable and calculable parameters relating to alterations in the shape of the geoid, such as centripetal and tidal gravitational effects, and gravitational anomalies related to a buildup of energy at any g... | 04/16/2002 |
| 6301551 | Remote pile driving analyzer A pile driving analyzer (PDA) which obtains, processes and stores pile driving data. The PDA is operable as an independent self-contained unit, or may be used in conjunction with a remote computer system. Position data indicative of the position of a pile... | 10/09/2001 |
| 6188327 | Subsea electronic tagging and monitoring systems A system for tagging and monitoring subsea installations such as valves used in hydrocarbon production includes a torque tool provided with a read/write head for inductive interaction with a data storage capsule on a valve installation, the capsule storin... | 02/13/2001 |
| 5774420 | Method and apparatus for retrieving logging data from a downhole logging tool A method and apparatus for retrieving logging data from a downhole logging tool is presented. The tool includes a plurality of sensors which acquire data which is stored in memory. Upon receiving an appropriate signal from a surface control unit, the logg... | 06/30/1998 |
| 5555220 | Slickline conveyed wellbore seismic receiver The invention is a system for conducting a geophysical survey in a wellbore, comprising a battery-powered, self-contained borehole seismic receiver which internally digitizes and records an electrical signal generated by a transducer in the receiver, and ... | 09/10/1996 |
| 5515039 | Surface/downhole pressure recording system A system for the output of data on a two wire cable system from a downhole well tool which has a system with sensor devices, a processor, a clock, a memory and a voltage/current communications device which are all powered by a d.c. battery to a surface re... | 05/07/1996 |
| 5157392 | Telemetry network for downhole multistation seismic recording tools A seismic logging system for VSP or cross well data capture set forth. It is comprised of M duplicate recording stations connected serially below a main structure suspended on a logging cable. Each of the recording stations preferably includes orthogonall... | 10/20/1992 |
| 5130705 | Downhole well data recorder and method Self-contained, preprogrammable downhole well data recorder and method of use thereof, the recorder having the external configuration of a conventional sidepocket gas lift valve and being placeable and retrievable from a conventional gas lift sidepocket m... | 07/14/1992 |
| 5062084 | Borehole digital geophone tool A method and apparatus for acquiring acoustical data from a borehole and is especially useful in carrying out tomogrphy surveys. The borehole digital geophone (BDG) tool of the present invention is capable of operating from a standard, 7-conductor logging... | 10/29/1991 |
| 4903245 | Downhole vibration monitoring of a drillstring Apparatus for monitoring vibration of a bottom hole assembly used to drill a well includes at least one accelerometer mounted in the bottom hole assembly to generate data in the form of electrical signals corresponding to the acceleration experienced by t... | 02/20/1990 |
| 4897646 | Method and apparatus for reducing the effective bandwidth of ultrasonic waveform for transmission over a logging cable A method and apparatus for increasing the effective bandwidth of an acoustic return resulting from logging operations. The real time acoustic return is stored in memory. A transmitted acoustic return is produced for transmitting over a logging cable by tr... | 01/30/1990 |
| 4852070 | Method and apparatus for transmitting and processing data from well logging tool A method and apparatus is disclosed for avoiding problems caused by a logging tool sticking in a borehole and subsequently accelerating when it becomes free. Such problems give rise to measurement errors and loss of data, particularly when the tool is in ... | 07/25/1989 |
| 4718011 | Well logging data acquisition, telemetry and control method and system A downhole microprocessor controller disposed in a well logging sonde receives and stores one or more preselected tables or series of logging tool commands down loaded from a surface computer through a logging cable telemetry link. Each tool command in a ... | 01/05/1988 |
| 4701892 | Downhole casing inspection system A 60 to 100% coverage of downhole casing condition is obtainable by the improved system comprising, a sufficient number of piezoelectric transducers 1/4 inch in diameter about a probe head, preferably, 40 or more and usually 60-120 piezoelectric transduce... | 10/20/1987 |
| 4676310 | Apparatus for transporting measuring and/or logging equipment in a borehole Apparatus for transporting measuring and/or logging equipment in a borehole filled with drilling fluid, the apparatus being in the form of a transporter body of normal diameter less than that of the borehole characterized by apparatus for effectively adva... | 06/30/1987 |
| 4665398 | Method of sampling and recording information pertaining to a physical condition detected in a well bore A physical condition in a well bore is sampled and information taken from the sample is recorded by a method of conserving electrical energy in performing such sampling and recording. The method sequentially energizes and de-energizes a plurality of diffe... | 05/12/1987 |
| 4662209 | Course length measurement A system for measuring the course length of a well bore uses a probe containing accelerometers to generate a first output signal indicative of the time rate of change of the probe's velocity as it travels through the bore. The probe also contains two casi... | 05/05/1987 |
| 4663628 | Method of sampling environmental conditions with a self-contained downhole gauge system The method for controlling the rate at which a downhole logging tool samples and records a detected condition obtains three samples of the condition at three consecutive sample times and computes a prediction value for the n-th sample from the first three... | 05/05/1987 |
| 4660638 | Downhole recorder for use in wells Method and apparatus for recording data downhole in a borehole. A recorder having a data memory is lowered into a data recording position in the borehole. A signal is transmitted downhole into the borehole and the recorder is initiated to begin recording ... | 04/28/1987 |
| 4661932 | Dynamic downhole recorder A method and apparatus allows dynamic data to be recorded in a drill string for later playback at the surface. The system includes a transducer located in a sub in the drill string which provides electrical responses to a analog to digital converter. A ti... | 04/28/1987 |
| 4597067 | Borehole monitoring device and method A method and device for sensing hole parameters while drilling a borehole, and transmitting the sensed data to a remote receiver. Data are transmitted in digital format as a series of audible binary pulses generated by a solenoid acoustically coupled to t... | 06/24/1986 |
| 4538248 | Recording system for a borehole logging tool A borehole logging system includes a borehole logging tool, a logging tool depth encoder for indicating rate of movement of the logging tool, a moving recording medium, and a recording encoder for indicating the actual rate of movement of the recording me... | 08/27/1985 |
| 4506263 | Data transmission system for logging tools A system for storing and transmitting pulse count information is disclosed wherein electrical pulses produced by logging tools, such as thermal neutron, are counted and stored downhole to remove the effect of lengthly transmission lines. In a further embo... | 03/19/1985 |
| 4499421 | Digital induction logging system including means for generating a plurality of transmitter frequencies A digital induction resistivity logging system is disclosed for digitally measuring phase components in a receiver signal generated in response to eddy currents flowing in the earth's sub-surface formations. The induction logging system includes a central... | 02/12/1985 |
| 4459760 | Apparatus and method to communicate information in a borehole The invention concerns efficient transmission of borehole survey signals or data from depth level in a borehole or well to the well surface, for analysis, display or recordation; further it concerns supply of DC power downwardly to the instrumentation via... | 07/17/1984 |
| 4456983 | System and method for visual display of well logging data An improved well logging system and method is provided for deriving and visibly displaying a recordable representation of a comprehensive lithological profile of the earth materials traversed by a borehole. In a particular form of the invention, all loggi... | 06/26/1984 |
| 4455529 | Digital induction logging tool including means for measuring phase quadrature components in a phase sensitive detector A digital induction resistivity logging system is disclosed for digitally measuring in one phase sensitive detector both the in-phase (R) and quadrature (X) phase components in a receiver signal generated in response to eddy currents flowing in the earth'... | 06/19/1984 |
| 4452075 | Push drill guidance indication apparatus The present invention relates to a program controlled apparatus for providing rapid calibration and update of sensor parameters in a push drill guidance apparatus which is remotely controllable from microprocessor circuitry. A special calibration program ... | 06/05/1984 |
| 4337653 | Blowout preventer control and recorder system A control and recorder system for a blowout preventer for providing a record of operation and status of the various components of the blowout control system at periodic times and after a function operation. The system monitors various functions such as wh... | 07/06/1982 |
