Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 8129994 | Microresistivity imaging in conductive and nonconductive drilling fluid A microresistivity logging tool includes a shield electrode deployed between a guard electrode and a return electrode. A measuring electrode is deployed in and electrically isolated from the guard electrode and first and second potential electrodes are deployed in a... | 03/06/2012 |
| 8102276 | Non-contact capacitive datalink for a downhole assembly Aspects of this invention include a downhole assembly having a non-contact, capacitive coupling including first and second transceivers deployed in corresponding first and second downhole tool members. The capacitive coupling is disposed to transfer electrical signa... | 01/24/2012 |
| 8022983 | Borehole imaging system for conductive and resistive drilling fluids A borehole imaging tool for use in a wellbore penetrating an earth formation includes a pad hingedly connected to a collar, a sensor array carried by the pad, and an urging assembly in connection between the pad and the collar for extending the pad toward a wall of ... | 09/20/2011 |
| 8011452 | Steerable drilling system A steerable system comprises a fluid powered motor 10 having a rotor 16 and a stator 18, and a bias arrangement having a plurality of bias pads 34 connected to the stator 18 so as to be rotatable therewith, the bias pads 34 ... | 09/06/2011 |
| 8005618 | Logging while drilling system A logging-while-drilling system for efficiently providing a reliable measurement of various petrophysical properties of subsurface earth formations. The logging-while-drilling system generally includes drilling a wellbore within an earth formation, circulating a flu... | 08/23/2011 |
| 7980328 | Rotary steerable devices and methods of use The invention provides rotary steerable devices and methods for use of rotary steerable devices. One aspect of the invention provides a rotary steerable device including: a cylinder configured for rotation in a wellbore, the cylinder having a slot and a gauge; and a... | 07/19/2011 |
| 7942214 | Steerable drilling system A steerable drilling system comprises a rotary drill bit 14 secured to a housing 16, a secondary rotary drill component 22 carried by the housing and rotatable therewith, the second rotary drill component 22 having a gauge dimension great... | 05/17/2011 |
| 7942213 | Using hydrostatic bearings for downhole applications Hydrostatic bearings are used for drill string stabilization and bottom hole assembly steering. The hydrostatic bearings utilize an existing mud flow as the bearing fluid. For steering, the bearings may be used between movable kick pads and the formation to reduce f... | 05/17/2011 |
| 7941906 | Progressive cavity apparatus with transducer and methods of forming and use The present invention relates to a stator (100-1000) with a profiled helical bore (106,206,306,606,706,806,906,1006) having a cast material layer (102;202;302;602;702;802;902;1002) with transducers (104A-104D;304;604A... | 05/17/2011 |
| 7925483 | Methods for visualizing distances between wellbore and formation boundaries A method for displaying a formation model while drilling a wellbore in the formation includes operating a well logging instrument at a measurement point in the formation along a wellbore while the wellbore is being drilled. Measurement data regarding the formation a... | 04/12/2011 |
| 7924013 | Apparatus and system for well placement and reservoir characterization A resistivity array having a modular design includes a transmitter module with at least one antenna, wherein the transmitter module has connectors on both ends adapted to connect with other downhole tools; and a receiver module with at least one antenna, wherein the... | 04/12/2011 |
| 7916041 | Hole depth sensing A method of sensing and transmitting hole depth information comprises monitoring, at the surface, the extension of the hole as drilling progresses, determining when the hole depth has extended by a predetermined distance, and sending an increment signal to a telemet... | 03/29/2011 |
| 7819666 | Rotating electrical connections and methods of using the same This invention provides rotating electrical connections and methods of using the same. One aspect of the invention provides a rotating electrical connection. The rotating electrical connection includes: a rotary member and a pin. The rotary member includes a contact... | 10/26/2010 |
| 7810585 | Bi-directional rotary steerable system actuator assembly and method Methods and apparatuses to direct a drill bit of a directional drilling assembly are disclosed. The methods and apparatuses employ the use of bi-directional actuators that are capable of displacing a hybrid steering sleeve in positive and negative directions. The bi... | 10/12/2010 |
| 7786733 | Apparatus and system for well placement and reservoir characterization A resistivity array having a modular design includes a transmitter module with at least one antenna, wherein the transmitter module has connectors on both ends adapted to connect with other downhole tools; and a receiver module with at least one antenna, wherein the... | 08/31/2010 |
| 7782060 | Integrated electrode resistivity and EM telemetry tool An integrated electrode resistivity and EM telemetry tool and obtaining both formation resistivity and telemetry data from the integrated tool. An integrated electrode resistivity and EM telemetry tool having a drill collar including a first portion and a second por... | 08/24/2010 |
| 7759943 | Subsurface electromagnetic measurements using cross-magnetic dipoles Sensor assemblies including transmitter and receiver antennas to respectively transmit or receive electromagnetic energy. The sensor assemblies are disposed in downhole tools adapted for subsurface disposal. The receiver is disposed at a distance less than six inche... | 07/20/2010 |
| 7741841 | Time-lapsed diffusivity logging for monitoring enhanced oil recovery The use of time-lapsed NMR diffusivity measurements in an observation well is disclosed. The observation well is cased in the zone of interest with non-magnetic and non-conductive casing that is invisible to the NMR tool. Second, because NMR measurements have a dead... | 06/22/2010 |
| 7739792 | Method of forming controlled thickness resilient material lined stator The present invention relates to a resilient material lined stator and method of forming. A method of forming a resilient material lined stator can include disposing a resilient material tube 400 with a profiled helical inner surface 401 into the bore ... | 06/22/2010 |
| 7710820 | Seabed seismic source apparatus A seabed seismic source apparatus includes a control module adapted for deployment at a seabed. The control module has a receiver for receiving a remote signal and a firing controller for generating a firing signal in response to the remote signal. The seabed seismi... | 05/04/2010 |
| 7692428 | Retrievable formation resistivity 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 tool. The tubular including slotted stations to provide through-tubular s... | 04/06/2010 |
| 7667942 | Battery switch for downhole tools An electrical circuit for a downhole tool may include a battery, a load electrically connected to the battery, and at least one switch electrically connected in series with the battery and to the load. The at least one switch may be configured to close when a tool t... | 02/23/2010 |
| 7656160 | Determining properties of earth formations using the electromagnetic coupling tensor A system and method to determine earth formation properties by positioning a logging tool within a wellbore in the earth formation, the logging tool having a tool rotation axis and a first, a second, and a third tilted transmitter coil, and a tilted receiver coil; r... | 02/02/2010 |
| 7630872 | Methods for visualizing distances between wellbore and formation boundaries A method for displaying a formation model includes displaying a trajectory representing a three-dimensional structure of the wellbore; and displaying objects representing a bed boundary along the trajectory, wherein the objects are displayed at distances from the tr... | 12/08/2009 |
| 7599825 | Shoulder bed effects removal Various technologies for removing shoulder-bed effects from measurements of an earth formation made in a wellbore. In one implementation, a methodology for removing the shoulder-bed effects includes receiving the measurements and constructing a layered model of the ... | 10/06/2009 |
| 7599797 | Method of mitigating risk of well collision in a field A method and system for mitigating risk of well collision in a field includes receiving an anti-collision standard exemption request containing a description of risk of collision between a subject well and one or more offset wells, generating an assessment of the an... | 10/06/2009 |
| 7552761 | Method and system for wellbore communication A communication system for a casing while drilling system is provided. The casing while drilling system is adapted to advance a bottom hole assembly into a subsurface formation via a casing. The communication system comprises a high frequency modulator and a transdu... | 06/30/2009 |
| 7536261 | Anti-symmetrized electromagnetic measurements A method to determine a parameter of a subsurface formation such as anisotropy and dip comprises making at least two cross dipole measurements and forming an anti-symmetrized combination from the at least two cross dipole measurements. ... | 05/19/2009 |
| 7436183 | Replaceable antennas for wellbore apparatus An antenna structure is separately and independently formed with respect to a downhole tool. The antenna is adapted for easy and rapid deployment on the tool. An independently formed ‘partial ring section’ (or arcuate shaped member) contains an antenna coil. In ... | 10/14/2008 |
| 7394257 | Modular downhole tool system A downhole tool for formation logging includes a tool body configured to move in a borehole; and at least one sensor module mounted in at least one mounting location on the tool body, wherein the at least one sensor module is interchangeable with other sensor module... | 07/01/2008 |
| 7382135 | Directional electromagnetic wave resistivity apparatus and method A novel on-the-fly data processing technique is useful for extracting signals from the azimuthal variation of the directional measurements acquired by a logging tool within a borehole. The relevant boundary, anisotropy and fracture signals are extracted from the for... | 06/03/2008 |
| 7360430 | High impedance thin film for strain gauge applications A resistive thin film (1) made of grains (3) of conductive material having an average size, in a dielectric medium (2) is characterized by the total thickness of the film (1) being between 3 and ten times the average size of the grains ( | 04/22/2008 |
| 7347262 | Downhole sampling tool and method for using same Methods and apparatuses for sampling fluid from a subterranean formation penetrated by a wellbore are provided. The subterranean formation has clean formation fluid therein, and the wellbore has a contaminated fluid therein extending into an invaded zone about the w... | 03/25/2008 |
| 6984983 | System and method for evaluation of thinly laminated earth formations A unique means in interpreting anisotropic reservoirs in thinly laminated earth formations regardless of the hole deviation is provided. A high-resolution micro-resistivity formation measurement is used to estimate in real time at the well site the formation anisotr... | 01/10/2006 |
| 6942033 | Optimizing charge phasing of a perforating gun A technique that is usable with a subterranean well includes orienting shaped charges of a perforating gun to extend partially around a longitudinal axis of the gun. The perforating gun is oriented in the well to direct the shaped charges away from a water boundary.... | 09/13/2005 |
| 6922373 | Method of estimating relative bearing of a borehole receiver The invention is a method for determining the orientation of a multi-component receiver where the preferred embodiment of the method makes use of an approximation of the relative bearing angle provided by a relative bearing sensor. The method comprises the steps of ... | 07/26/2005 |
| 6904797 | Production profile determination and modification system A system and method for profiling and modifying fluid flow through a wellbore. The system comprises a logging system, a downhole unit, and a deployment system. The logging system comprises a logging tool. The downhole unit is operable to house the logging tool. In a... | 06/14/2005 |
| 6899318 | Wave seal to resist extrusion during equalization The present invention provides for dynamic sealing in a flow control device. In an embodiment, the flow control device comprises a closure sleeve adapted to slide over the tubing hole. The closure sleeve has a front edge having a wave-like surface. One or more seals... | 05/31/2005 |
| 6896059 | Components and methods for use with explosives An apparatus and method is provided to reduce interference resulting from activation of explosive devices. To reduce interference, one or more shock impeding elements are placed proximal one or more explosives to impede propagation of shock caused by detonation of t... | 05/24/2005 |
| 6892816 | Method and apparatus for selective injection or flow control with through-tubing operation capacity An in-line flow control device for a well chokes flow through a conduit while allowing access therethrough. ... | 05/17/2005 |
