Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7991556 | Methodology and application of multimodal decomposition of a composite distribution A method for analyzing formation data includes decomposing the formation data into simple components that can be used to reconstruct the formation data, wherein the decomposing is performed at a first location and includes a process to minimize an overlap between th... | 08/02/2011 |
| 7986144 | Sensor and insulation layer structure for well logging instruments A logging sonde includes a tube defining a sealed chamber inside. An isolation layer is disposed on an exterior of the tube. At least one sensor is disposed on an exterior of the isolation layer. The sensor includes a lead in passing through a wall of the tube. An e... | 07/26/2011 |
| 7782709 | Multi-physics inversion processing to predict pore pressure ahead of the drill bit Methods are disclosed to predict pore pressure ahead of the drill bit while drilling a borehole through subsurface regions. ... | 08/24/2010 |
| 7759942 | Lightweight, low cost structure for formation conductivity measuring instrument A well logging instruments includes an electrically conductive sonde mandrel. At least one electrical sensor is affixed to an exterior of the mandrel. The sensor is configured to be attached to the mandrel by sliding along an exterior surface thereof. A pressure-sea... | 07/20/2010 |
| 7723989 | Transducer assemblies for subsurface use Transducer apparatus for subsurface use. A tubular configured for subsurface disposal is equipped with a cylindrical transducer module formed of a non-conductive material. The module is mounted to surround a section of the tubular and includes a transducer element d... | 05/25/2010 |
| 7667464 | Time segmentation of frequencies in controlled source electromagnetic (CSEM) applications A method for measuring a resistivity of a subsurface formation that includes transmitting continuously a signal at a first fundamental frequency at full power for a first period of time within a single window of time causing electromagnetic energy to propagate in th... | 02/23/2010 |
| 7660695 | Segmented antenna system for offshore radio networks and method of using same The present invention provides a method and apparatus for a segmented antenna system. The method includes determining an orientation of a first antenna, the first antenna including a plurality of segments for transmitting and receiving signals, determining a directi... | 02/09/2010 |
| 7660203 | Systems and methods for seismic data acquisition employing asynchronous, decoupled data sampling and transmission Systems and methods for asynchronously acquiring seismic data are described, one system comprising one or more seismic sources, a plurality of sensor modules each comprising a seismic sensor, an A/D converter for generating digitized seismic data, a digital signal p... | 02/09/2010 |
| 7660193 | Integrated seismic sensor cable A seismic cable (110) and a method for producing a seismic cable are disclosed. The seismic cable (110) comprises a sensor module (130); at least one lead (210) to or from the sensor module (130); a stress member (225) exten... | 02/09/2010 |
| 7660192 | Seismic streamer receiver selection systems and methods Systems and methods for determining inline skew of one or more seismic streamers are disclosed. One system embodiment includes a seismic streamer including a plurality of receivers, a skew detector adapted to detect inline skew of the streamer, and a receiver select... | 02/09/2010 |
| 7660190 | Deflector devices A deflector device (22) for use with a tow line between a seismic survey vessel and a tow, in particular a seismic streamer or streamer array, in the water behind the vessel comprises a vertically oriented wing-shaped body (28) shaped to produce in use... | 02/09/2010 |
| 7660189 | Apparatus, systems and methods for determining position of marine seismic acoustic receivers Apparatus, systems and methods for calculating position of marine seismic acoustic receivers, and for estimating sound velocity profile of a fluid, are disclosed. One position calculation system includes a vessel, two or more vessel hull-mounted transmitters, a plur... | 02/09/2010 |
| 7659724 | Surveying method using an arrangement of plural signal sources The survey technique for use in a marine environment to survey a subterranean structure includes providing an arrangement of plural signal sources in a body of water to produce corresponding signals. The signals of the signal sources in the arrangement are set to ca... | 02/09/2010 |
| 7658161 | System for depth control of a marine deflector A system for adjusting a deflector in a seismic survey comprises a generally upright deflector body and at least one bridle connected to a seismic cable. The bridle includes an upper segment secured to an upper connection point on the deflector body, and a lower seg... | 02/09/2010 |
| 7365307 | Sigma/porosity tools with neutron monitors A tool for formation logging includes a support configured for movement in a borehole; a neutron source disposed on the support; a neutron monitor disposed on the support and configured to monitor an output of the neutron source; a gamma-ray detector disposed on the... | 04/29/2008 |
| 6978842 | Volume compensated shifting tool The present invention provides for an apparatus and method of use for a hydraulic shifting tool to be used in a sealed volume in a subsurface well completion to actuate a downhole device, without a fluid return to surface or the well annulus. ... | 12/27/2005 |
| 6938469 | Method for determining properties of formation fluids A method is disclosed for downhole determination of the resistivity of fluids from formations surrounding an earth borehole, including the following steps: providing a formation testing logging device that includes a coil and a flow line passing axially through the ... | 09/06/2005 |
| 6919512 | Field weldable connections The present invention provides a field weldable connection. In one embodiment, the field weldable connection is a downhole connector assembly for sealingly attaching a first and a second segment of a control line. The control line has an outer housing that encapsula... | 07/19/2005 |
