Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8186212 | Shock and vibration environmental recorder for wellbore instruments A wellbore instrument includes a housing configured to traverse a subsurface wellbore. A shock and vibration sensor disposed in the housing and is mounted on a carrier disposed in the housing. The carrier includes at least two, laterally movable elements each having... | 05/29/2012 |
| 8186201 | Multi-sensor gas detectors A multi-sensor gas detector includes a solid state heatable gas sensor, and at least one, different, infrared gas sensor. Emitted radiant energy from a heated surface of the solid state gas sensor, incident on the infrared gas sensor generates an output signal indic... | 05/29/2012 |
| 8186211 | In-borehole gas monitor apparatus and method A self-contained in-borehole gas monitor (IGM) apparatus (8) comprising a detector for measuring a gas variable, and a controller (54) configured to automatically periodically use the detector to measure a gas variable. ... | 05/29/2012 |
| 8171778 | Thin film particle sensor A Coulter-style, microfluidic sensor formed by stacking a plurality of substantially non-electrically conductive layers, typically formed from thin polymer films. Certain layers carry patterned electrodes that are arranged to permit their connection to an electrical... | 05/08/2012 |
| 8166812 | Vibrating wire viscometers Vibrating wire viscometers are disclosed. An example apparatus to determine the viscosity of a downhole fluid is described, the apparatus including a wire to be immersed in a downhole fluid, to vibrate when an alternating current is applied to the wire within a magn... | 05/01/2012 |
| 8166798 | Gas analyzer having a structure including cavities and volumes Method of making a structure, a structure and a gas analyzer comprising cavities and volumes in which a multilayer structure is made by laminating single layers on top of each other to form the multilayer structure and combining them all together, in which method be... | 05/01/2012 |
| 8161792 | Method and apparatus for assessing the gentleness of brushes A method and apparatus for assessing the abrasiveness of a brush is provided. The method includes providing a destructible article, providing a brush, such as for example a toothbrush, brushing the destructible article with the toothbrush, examining the destructible... | 04/24/2012 |
| 8161802 | Handheld tensiometer featuring automatic regulation of the bubble life by measuring and regulating the gas volume flow A hand tensiometer for measuring the surface tension of liquids or for measuring of substance concentrations in a liquid wherein a gas volume stream entered from a gas source (10) through a buffer storage (11) into a measuring capillary (3) form... | 04/24/2012 |
| 8156800 | Methods and apparatus to evaluate subterranean formations Methods and apparatus to evaluate subterranean formations are described. An example method of evaluating a subterranean formation includes, obtaining a first sample from a first wellbore location. Additionally, the example method includes obtaining a second sample f... | 04/17/2012 |
| 8156785 | Method and apparatus for determining a value that correlates to available traction A method and apparatus for determining a value that correlates to available traction that is a lightweight, hand-held, portable apparatus that may include a pad of material, a translating assembly, a load assembly, a first device to move the pad and a second device ... | 04/17/2012 |
| 8151878 | Apparatus and methods for collecting a downhole sample Methods and apparatus for collecting a downhole sample are provided. The method may include conveying a sampling tool in a borehole using a first carrier, conveying a sample container in the borehole using a second carrier, and introducing a downhole sample from the... | 04/10/2012 |
| 8151658 | Ding inspection device Visual inspection of an interior bottom of a borehole by means of measuring the sediment thickness at the bottom. An inspection device to be lowered in the borehole and then to be retrieved. The bottom sediment thickness is marked on the piston by a collar attached ... | 04/10/2012 |
| 8151631 | Methods for manufacturing unleaky closed containers and leak testing apparatus In a leak testing apparatus and a method for manufacturing unleaky closed containers having first and second flexible wall areas with different flexibility characteristics, a biasing member is moved toward and onto the first flexible area and a force detector monito... | 04/10/2012 |
| 8141419 | In-situ formation strength testing Estimating formation properties includes a member coupled to a carrier, the member having a distal end that engages a borehole wall location, the distal end having a curved surface having a radius of curvature in at least one dimension about equal to or greater than... | 03/27/2012 |
| 8136394 | Methods and apparatus for analyzing a downhole fluid Methods and apparatuses for analyzing a downhole fluid are disclosed. An example method may involve the steps of admitting the downhole fluid in a test volume, controllably inducing a pressure change in the test volume based on at least one prescribed rate, measurin... | 03/20/2012 |
| 8132453 | Method for analysis of pressure response in underground formations A reservoir pressure in an underground formation surrounding a well is analyzed based on a direct measurement of the pressure at the wall of the well using the permeability of mud cake on the wall of the well in the region in which the pressure measurement is made; ... | 03/13/2012 |
| 8127598 | Procedure for determining the proportions of components of a fuel mixture A procedure for determining the proportion of components of a fuel mixture, which is boosted with a fuel pump, and a device for implementing the procedure are suggested. A measure for the power input of the fuel pump is detected, with whose aid the proportion of com... | 03/06/2012 |
| 8127626 | Sediment sampler for in-situ measurement of soluble contaminant flux rates A method and apparatus for in-situ measurement of soluble contaminant flux rates from sediments in which an inverted desorption chamber containing a sorbent system is filled with water and placed over an area of sediment, whereby the interior of the chamber is isola... | 03/06/2012 |
| 8117907 | Caliper logging using circumferentially spaced and/or angled transducer elements A downhole tool includes circumferentially spaced and/or angled transducer elements. In one embodiment a standoff sensor has at least three piezoelectric transducer elements, at least a first element of which is configured to both transmit and receive ultrasonic ene... | 02/21/2012 |
| 8113044 | Downhole 4D pressure measurement apparatus and method for permeability characterization A system for making pressure measurements in a formation surrounding a wellbore includes a sensor which, in use, is positioned into direct pressure communication with the formation from a predetermined location in the wellbore, and a means for isolating the sensor, ... | 02/14/2012 |
| 8113036 | Air velocity apparatus and system An apparatus and a system is provided that may be utilized to determine air flow through an air filter and/or a plurality of air filters. The present invention utilizes a demonstration apparatus to illustrate the differences in air flow and air restriction between a... | 02/14/2012 |
| 8113041 | Gravitational method and apparatus for measuring true vertical depth in a borehole A method for measuring true vertical depth in a borehole, the method including: measuring gravitational acceleration in the borehole; and determining the true vertical depth from the measurement. ... | 02/14/2012 |
| 8116980 | Testing process for hydrocarbon wells at zero emissions Testing process for testing hydrocarbon wells at zero emissions in order to obtain general information on a reservoir. The process includes injecting into the reservoir a suitable liquid or gaseous fluid, compatible with the hydrocarbons of the reservoir and with th... | 02/14/2012 |
| 8113042 | Gravity measurment methods for monitoring reservoirs A method of performing gravity surveys in a wellbore is described including performing a time-lapse measurement in a monitoring well in the vicinity of injector wellbores, determining a depth for which the difference of the time lapse measurements changes sign or cr... | 02/14/2012 |
| 8109138 | Method and system for estimating engine oil life based on viscosity A method and control module for indicating engine oil life includes a viscosity determination module determining a viscosity of the engine oil based on an engine oil pressure and engine oil temperature. The control system further includes a comparison module compari... | 02/07/2012 |
| 8109140 | Downhole sampling apparatus and method for using same A reservoir sampling apparatus (20) is described having at least one probe (26) adapted to provide a fluid flow path between a formation and the inner of the apparatus with the flow path being sealed from direct flow of fluids from the borehole annulus... | 02/07/2012 |
| 8109155 | Methods and apparatus to measure fluid flow rates Example methods and apparatus to measure fluid flow rates are disclosed. A disclosed example apparatus includes a circulator to selectively circulate a fluid in a flowline, a generator thermally coupled to the flowline at a first location and controllable to form a ... | 02/07/2012 |
| 8104338 | Method and apparatus for ion-selective discrimination of fluids downhole In a particular embodiment, a method and system are disclosed for measuring ion concentrations for a fluid and determining a degree of sample cleanup during sampling of a fluid downhole. The method includes but is not limited to deploying an ion selective sensor dow... | 01/31/2012 |
| 8104337 | Christmas tree with internally positioned flowmeter A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve. ... | 01/31/2012 |
| 8106659 | In situ measurements in formation testing to determine true formation resistivity A borehole formation testing system that measures resistivity of near borehole formation in situ rather than the measuring resistivity of fluid drawn into a formation tester tool. A radially extendable probe assembly contacts and forms a hydraulic seal with the wall... | 01/31/2012 |
| 8104498 | Soil moisture sensor and controller Moisture sensor devices and methods are disclosed herein. One embodiment includes an integrated moisture sensor and controller to be placed in soil comprising a controller circuit for controlling a switch; a sensor circuit comprising a probe and adapted to provide t... | 01/31/2012 |
| 8087286 | Method for checking the permeability rate of a closed container In a method for checking the permeability rate of a closed container (3) with respect to a medium, in particular for checking the permeability rate of a film-type container for accommodating a film container for accommodating a pharmaceutical active constitue... | 01/03/2012 |
| 8082781 | Apparatus for pressure testing a pressure foot An apparatus for the testing of downhole an injection assembly prior to installation of the injection assembly in the completion string is disclosed. The apparatus is comprised an injection tubing, an injection sub, an injection valve, an injection sub test block, a... | 12/27/2011 |
| 8082780 | Methods and apparatus for decreasing a density of a downhole fluid Methods and apparatus for decreasing a density of a downhole fluid are described. An example apparatus to analyze a downhole fluid includes a chamber to decrease a density of at least a portion of a sample of a downhole fluid. Additionally, the example apparatus inc... | 12/27/2011 |
| 8074490 | Clandestine grave detector An apparatus and a method for detecting a burial site of human remains are disclosed. An air stream is drawn through an air intake conduit from locations near potential burial sites of human remains. The air stream is monitored by one or more chemical sensors to det... | 12/13/2011 |
| 8074510 | High pressure screen flow-through testing device A screen test apparatus includes a test cell disposed within a pressure vessel, a piston disposed within the pressure vessel, wherein the piston is in sealing contact with an inner surface of the pressure vessel, and a screen assembly disposed in an end of the test ... | 12/13/2011 |
| 8069715 | Vadose zone pore liquid sampling system A method and apparatus for collection of pore water samples from a subsurface geologic formation, especially a vadose zone formation having high capillary tension. The method consists of injection of a fluid with known tracer concentrations therein into the formatio... | 12/06/2011 |
| 8069703 | Semi-continuous detection of mercury in gases A new method for the semi-continuous detection of heavy metals and metalloids including mercury in gaseous streams. The method entails mass measurement of heavy metal oxides and metalloid oxides with a surface acoustic wave (SAW) sensor having an uncoated substrate.... | 12/06/2011 |
| 8069716 | Multi-coupling reduced length measure while drilling apparatus A downhole drilling apparatus for measure while drilling including a housing defining a longitudinal housing axis, wherein the housing has an upper end and a lower end. A motor includes a rotor, wherein the rotor is adapted to be driven by drilling fluids. A first d... | 12/06/2011 |
| 8065907 | Apparatus and method for continuous measurement of a physical property of a drilling fluid A testing apparatus comprising a chamber having an inlet and an outlet (16); a measuring device, at least a part of which is provided within the chamber; where the inlet is arranged to direct fluid onto the part of the measuring device within the chamber in o... | 11/29/2011 |
