| Patent Number |
Title Of Patent |
Date Issued |
| RE39970 |
Downhole adjustable bent housing for directional drilling |
January 1, 2008 |
| The present invention provides a hydraulically actuated downhole adjustable bent housing for use in directional drilling of bore holes and wells that allows adjustment of the housing from aligned to a bent configuration without raising or lowering the drillstring. The present inventi |
| RE39583 |
Multiple well tool control systems in a multi-valve well testing system having automatic control |
April 24, 2007 |
| A multi-valve well testing system adapted to be disposed downhole in a borehole, includes a plurality of valves and a plurality of well tool control systems connected, respectively, to the plurality of valves and further includes an automatic control mode feature. The well testing sy |
| RE38578 |
Method and apparatus for cementing a well |
September 14, 2004 |
| A method of cementing a well permitting a reduction in the degree of diameter reduction of casing or liners required, and not requiring excessively large initial conductor casing, is described. The method is characterized by provision of an enlarged wellbore and a novel liner structu |
| RE38129 |
Phase change analysis in logging method |
June 3, 2003 |
| An improved method of fluid analysis in the borehole of a well. A fluid sampling tool is fitted with a pumpout module that can be used to draw fluids from the formation, circulate them through the instrument, and then expel this fluid to the borehole. It has been determined that certain |
| RE36012 |
Accelerator-based methods and apparatus for measurement-while-drilling |
December 29, 1998 |
| Measurement-while-drilling apparatus includes a 14 MeV neutron accelerator, a near-spaced neutron detector which primarily senses source neutrons and whose output is proportional to source strength, one or more intermediately-spaced epithermal neutron detectors eccentered against the |
| RE34975 |
Ultrasonic measurement apparatus |
June 20, 1995 |
| Pulse echo apparatus and methods are disclosed for measuring characteristics of a borehole while it is being drilled. A component of a bottomhole assembly, preferably a drilling collar, is provided with one or more ultra-sonic transceivers. A pulse echo sensor of the transceiver is p |
| RE32831 |
Apparatus for sealing a well casing |
January 17, 1989 |
| A method and apparatus for sealing a well casing, when a length of production tubing is disposed within the well casing, utilizes a sealing means having a first diameter less than the diameter of the production tubing, and the sealing means is compressible to a second diameter which |
| RE32564 |
Apparatus for determining the resistivity of a subsurface earth formation at different lateral d |
December 15, 1987 |
| Apparatus for investigating subsurface earth formations traversed by a borehole comprising a system of electrodes consisting of a central electrode A.sub.0 and four pairs of electrodes M.sub.1 -M'.sub.1, M.sub.2 -M'.sub.2, A.sub.1 -A'.sub.1, A.sub.2 -A'.sub.2 respectively short-circu |
| RE32336 |
Method and apparatus for conducting logging or perforating operations in a borehole |
January 27, 1987 |
| A method and apparatus for conducting logging or perforating operation in a borehole, particularly a deviated borehole, includes lowering a length of drill pipe having the well-logging tool, or well bore perforator, releasably mounted thereon into the borehole. An extension member, which |
| RE31155 |
Pump down system for placing and retrieving subsurface well equipment |
February 22, 1983 |
| A pump-down assembly for positioning and retrieving subsurface well equipment in a side pocket mandrel. The assembly is articulated to permit it to move through tubing curves and includes positioning and orienting means. Spring loaded latches in the positioning means mate only with c |
| RE30055 |
Apparatus for transmitting well bore data |
July 24, 1979 |
| In the representative embodiments of the present invention described herein, a drilling mud is circulated through a drill string at a sufficient rate to effectively operate an impeller-driven electrical generator arranged on a tool coupled in the drill string for supplying power to d |
| RE29734 |
Well bore data-transmission apparatus with debris clearing apparatus |
August 15, 1978 |
| In the representative embodiment of the apparatus of the present invention disclosed herein, a first ported or grooved cylindrical member is coaxially disposed within a drill string for directing drilling fluids flowing through the apparatus along one or more selected flow paths .[.t |
| RE29638 |
Pressure controlled test valve system for offshore wells |
May 23, 1978 |
| Methods and apparatus for performing a drill stem test of an offshore well utilizing a pressure controlled test valve. The test valve includes a valve element having a transverse pressure area with the high pressure side exposed to the pressure of fluids in the well annulus and the low |
| D461703 |
Reel and hose assembly |
August 20, 2002 |
|
| D443560 |
Roadway trailer for coiled tubing reel |
June 12, 2001 |
|
| D442891 |
Trailer for a coiled tubing reel |
May 29, 2001 |
|
| D436519 |
Coiled tubing guide for a coiled tubing reel |
January 23, 2001 |
|
| 7619540 |
Apparatus and methods for determining isotropic and anisotropic formation resistivity in the pre |
November 17, 2009 |
| A logging tool includes a tool body; a simple transmitter comprising a single antenna disposed on the tool body; four simple receivers, each comprising a single antenna, disposed on the tool body and spaced apart from the simple transmitter to form four arrays; and an electronic module |
| 7617908 |
Downhole seismic source |
November 17, 2009 |
| Elastodynamic waves are generated by a tool having a hammer rotatably connected with a housing by a first hinge and an actuator arm rotatably connected with the hammer by a second hinge. An axial force applied to the actuator arm by a drive shaft and spring is translated and amplified |
| 7617891 |
Mechanical crawler |
November 17, 2009 |
| A self-propelled mechanical crawler adapted to move on a medium. One example of such a crawler includes a foot, a wave generator adapted to drive a periodic wave in the foot, and a wave transfer mechanism coupled between the wave generator and the foot. The wave transfer mechanism may |
| 7617876 |
Formation isolation valve and method of use |
November 17, 2009 |
| The present invention provides for high volume flow from a well. A retrievable formation isolation valve allows high volume flow through the remaining casing or tubing. Alternatively, a large bore valve configuration that is not retrieved, but remains as part of the casing, can be us |
| 7617874 |
Flexible matrix composite actuator for use in subsurface wellbores |
November 17, 2009 |
| A valve control system for a wellbore includes a fiber composite actuator functionally coupled to a valve operating member and means for controllably charging an interior of the actuator with fluid under pressure. A valve for a wellbore includes a valve stem and a valve seat associat |
| 7617873 |
System and methods using fiber optics in coiled tubing |
November 17, 2009 |
| Apparatus having a fiber optic tether disposed in coiled tubing for communicating information between downhole tools and sensors and surface equipment and methods of operating such equipment. Wellbore operations performed using the fiber optic enabled coiled tubing apparatus includes |
| 7617872 |
System and method for perforated well sand control |
November 17, 2009 |
| In one embodiment, a system includes a cased wellbore disposed in a formation of interest. The system includes an emulsion positioned in the wellbore at a depth of the formation of interest. The emulsion includes an oil external phase and an aqueous internal phase. The oil external p |
| 7617082 |
Method, system and program storage device for simulating fluid flow in a physical system using a |
November 10, 2009 |
| The present invention provides a method, a system and a program storage device containing instructions for simulating the flow of fluid in a physical system using a composition-based extensible object-oriented program. A computer program includes: (i) a framework subsystem providing |
| 7617052 |
Ultrasonic estimating method and apparatus for a cased well |
November 10, 2009 |
| An ultrasonic estimating method and apparatus are presented for estimating a mud velocity in a casing including a transducer and adapted to be positioned inside the casing and displaced through the casing at a plurality of azimuth and a plurality of depths. |
| 7617051 |
Method and system for pre-drill pore pressure prediction |
November 10, 2009 |
| In general, the invention relates to a method for pore pressure prediction. The method includes obtaining a compressional wave (P-wave) velocity and a shear wave (S-wave) velocity for a pre-drill location, calculating an effective stress at the pre-drilling location using a stress-ve |
| 7614452 |
Flow reversing apparatus and methods of use |
November 10, 2009 |
| Apparatus and methods for selectively and safely reversing flow in coiled tubing used for wellbore cleanouts are disclosed. One apparatus includes a section of coiled tubing having a main flow channel, at least two flow-preventing valves in the section of coiled tubing, each adapted to |
| 7614296 |
Method and device for fluid flow parameters determination |
November 10, 2009 |
| A method and device for a liquid media parameters determination, wherein an extended heater oriented along the fluid flow is installed in the fluid flow. Fluid flow temperature is measured. The heater is heated up and the temperatures at the interfaces "heater front surface-flow zone" |
| 7614294 |
Systems and methods for downhole fluid compatibility |
November 10, 2009 |
| Methods for performing downhole fluid compatibility tests include obtaining an downhole fluid sample, mixing it with a test fluid, and detecting a reaction between the fluids. Tools for performing downhole fluid compatibility tests include a plurality of fluid chambers, a reversible |
| 7612565 |
Apparatus and system for well placement and reservoir characterization |
November 3, 2009 |
| 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 transmitter module ha |
| 7610970 |
Apparatus for eliminating net drill bit torque and controlling drill bit walk |
November 3, 2009 |
| A drilling apparatus controls or eliminates reaction torque from drill bits thereby preventing loss of penetration due to undesired rotation of the drilling apparatus or controls drilling direction by intentionally manipulating reaction torque thereby inducing desired drill bit walk. The |
| 7610961 |
Downhole separation of oil and water |
November 3, 2009 |
| A well for producing oil from an underground formation, comprises a vertical section extending from the surface to a depth below the oil-producing formation; a sidetrack or perforated interval (production zone) extending from the vertical section into the oil-producing formation; and |
| 7609380 |
Real-time calibration for downhole spectrometer |
October 27, 2009 |
| An apparatus for performing real-time analysis of a subterranean formation fluid includes a light source configured to transmit at least a sample signal through a sample of the subterranean formation fluid and a reference signal, at least one photodetector configured to continuously |
| 7607487 |
Packers and methods of use |
October 27, 2009 |
| Packers and methods of using same are described. The packer includes a packer body, a slip to engage a casing of the well and a sealing element to seal an annulus of the well, a fluid bypass chamber adapted to allow fluid passage through the packer body during run in hole and in release |
| 7607478 |
Intervention tool with operational parameter sensors |
October 27, 2009 |
| An intervention tool for use inside a wellbore is provided that includes an intervention module capable of performing an intervention operation downhole, and a drive electronics module in communication with the intervention module and configured to control the intervention module. Th |
| 7607358 |
Flow rate determination of a gas-liquid fluid mixture |
October 27, 2009 |
| Methods and systems are described for determining a flow rate of a gas-liquid fluid mixture in a conduit. In the described systems and methods, the fluid mixture is conditioned so that the liquid in the mixture is separated from the gas in the mixture. Properties of the conditioned f |
| 7607303 |
Zero emission natural gas power and liquefaction plant |
October 27, 2009 |
| A zero-emissions power plant receives natural gas from wells at elevated pressure and temperature. Gas is expanded through one or more turbo-expanders, preferably reformed, and sent to a fuel cell where electricity, heat, carbon-dioxide, and water are generated. The carbon-dioxide is |
| 7606666 |
System and method for performing oilfield drilling operations using visualization techniques |
October 20, 2009 |
| The invention relates to a method of performing a drilling operation for an oilfield. The method includes collecting oilfield data, a portion of the oilfield data being real-time drilling data generated from the oilfield during drilling, defining a number of oilfield events based on |
| 7605715 |
Electromagnetic wellbore telemetry system for tubular strings |
October 20, 2009 |
| A coaxial transmission line for an electromagnetic wellbore telemetry system comprises an outer conductive pipe, an inner conductive pipe disposed coaxially inside an axial bore of the outer conductive pipe, a first electrical contact having a first contact face disposed at a first e |
| 7604049 |
Polymeric composites, oilfield elements comprising same, and methods of using same in oilfield a |
October 20, 2009 |
| Oilfield elements and assemblies are described comprising a polymeric matrix formed into an oilfield element, and a plurality of expanded graphitic nanoflakes and/or nanoplatelets dispersed in the polymeric matrix. Methods of using the oilfield elements and assemblies including same |
| 7603261 |
Method for predicting acid placement in carbonate reservoirs |
October 13, 2009 |
| A computationally efficient general method of modeling or simulating matrix acidizing treatment when flow is not axisymmetric involves determining streamlines in the general flow field using complex potential theory to solve for the flow along the streamlines. The flow over a time st |
| 7603238 |
Analysis of time-series data using singularities |
October 13, 2009 |
| A method for acquiring and analyzing time-series data using singularities is described. This method allows for the analysis of data over a wide spectrum of frequencies. Once the data is acquired in an oil field, singularities of the data are extracted; and the extracted singularities |
| 7603237 |
Method for analyzing data having shared and distinct properties |
October 13, 2009 |
| A method to determine formation properties using two or more data sets in which the solutions corresponding to the data sets represent shared and distinct formation properties. The method analyzes the data sets and computes distributions for the shared and distinct formation properties |
| 7603236 |
Method to determine fluid phase distribution and quantify holdup in a wellbore |
October 13, 2009 |
| The present invention is a method of determining fluid phase distribution and quantifying holdup in a wellbore. The method includes receiving a plurality of oriented probe data and grouping the oriented probe data based on a depth interval. The grouped probe data is processed and fluid |
| 7603011 |
High strength-to-weight-ratio slickline and multiline cables |
October 13, 2009 |
| Slickline cables and methods for preparing such cables are disclosed. A slickline cable includes a pre-manufactured polymer composite rod having a channel therein; an optical fiber disposed in the channel; a fastener securing the optical fiber in the channel, wherein the fastener is |
| 7603009 |
Double-ended distributed temperature sensing systems |
October 13, 2009 |
| The present invention comprises a system for deploying double-ended distributed temperature sensing (DTS) systems which utilizes less space than prior art systems. In one embodiment, the present invention comprises a cable having at least two independent optical fibers or cores, the |
| 7602668 |
Downhole sensor networks using wireless communication |
October 13, 2009 |
| Sensors located in the vicinity of a hydrocarbon-producing well receive power and communicate with one or more hubs located in the well or at the outer surface of a casing by means of elastodynamic waves. Each hub incorporates a plurality of transducers which permit focusing of the e |
| 7600928 |
System and method for performing and protecting hybrid line splices |
October 13, 2009 |
| A method for providing a protected splice in a hybrid cable that has a fiber optic line and an electrical line includes the steps of providing an optic splice in the fiber optic line; providing a electrical splice in the electrical line proximate to the optic splice; connecting a tube ov |
| 7600585 |
Coiled tubing drilling rig |
October 13, 2009 |
| The present invention provides a rig capable of both coiled tubing and conventional drilling. The rig comprises a mast unit having a drilling mast and a catwalk. The mast unit is adapted for rotary drilling and casing operations. The rig further comprises a drill floor unit adapted t |
