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| Number | Title | Issue Date |
| 8156801 | Flow metering device A fluid flow metering device comprises a ball valve locatable in a fluid flow, having at least two transverse bores through the ball valve, a first transverse bore and a second transverse bore. The first transverse bore includes a fluid flow metering apparatus for m... | 04/17/2012 |
| 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 |
| 7992434 | 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. ... | 08/09/2011 |
| 7866207 | Apparatus and method for fluid flow measurement with sensor shielding Methods and apparatuses for detecting radial flows of conductive fluid are provided. In an embodiment of the present invention, shields are used to prevent or reduce circulating electrical currents from causing a voltage difference that would adversely affect the me... | 01/11/2011 |
| 7836759 | Fluid flow measuring device and method of manufacturing thereof In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic... | 11/23/2010 |
| 7596996 | 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. ... | 10/06/2009 |
| 7574907 | Apparatus and method for fluid flow measurement with sensor shielding Methods and apparatuses for detecting radial flows of conductive fluid are provided. In an embodiment of the present invention, shields are used to prevent or reduce circulating electrical currents from causing a voltage difference that would adversely affect the me... | 08/18/2009 |
| 7509852 | Fluid flow measuring device and method of manufacturing thereof In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic... | 03/31/2009 |
| 7389684 | Gas lift flow surveillance device The gas lift flow surveillance device has a paddle having a rod with a target attached to one end and a paddle block attached to the opposite end. The paddle block is pivotally disposed within a surveillance device housing body. A contact extending from the paddle b... | 06/24/2008 |
| 7275447 | Method and apparatus to determine an initial flow rate in a conduit A method and apparatus for determining an initial flow rate in a conduit is disclosed. A known change is made to the flow to be measured, resulting changes (or values corresponding to these changes), or relative changes in the flow to be measured are monitored and t... | 10/02/2007 |
| 7114386 | Method and apparatus for acquiring data in a hydrocarbon well in production To acquire data such as the flow rate of various phases of a fluid flowing in a hydrocarbon well (12) in production, in particular in an inclined or horizontal portion of the well, both the local speed of the fluid and the proportions of the various phases ar... | 10/03/2006 |
| 7110920 | Water monitoring systems Improved water monitoring systems comprise a test unit having an analytical device and a control system in communication with the test unit such that water supply data generated at the test unit can be communicated to the control system. In some embodiments, the ana... | 09/19/2006 |
| 7086294 | Retrievable downhole flow meter A well has a downhole flow meter that is installed in a sub in a string of tubing. The flow meter has a body having an external profile that lands on a landing profile in the sub. The body has a passage with a throat area of reduced diameter. Upstream and downstream... | 08/08/2006 |
| 7069775 | Borehole caliper tool using ultrasonic transducer A borehole caliper tool includes a tool body, a bow spring flexibly coupled to the tool body, a target coupled to the bow spring, and an ultrasonic transducer coupled to the tool body, wherein in operation the ultrasonic transducer transmits an acoustic pulse to the... | 07/04/2006 |
| 7064677 | Method of monitoring service operations of a service vehicle at a well site A method monitors servicing operations of a vehicle capable for example of pumping various fluid treatments down into a well being serviced at a well site. The method records the vehicle's engine speed and the values of one or more service-related variables, such as... | 06/20/2006 |
| 7044237 | Drilling system and method A closed-loop circulating system for drilling wells has control of the flow rates in and out of the wellbore. Kicks and fluid losses are quickly controlled by adjusting the backpressure. Kick tolerance and tripping margins are eliminated by real-time determination o... | 05/16/2006 |
| 7042225 | Apparatus and methods for induction-SFL logging A well logging tool includes an induction array stack disposed on a mandrel; an electronic module stack disposed adjacent the induction array stack along a longitudinal axis of the well logging tool; and a shallow electrode array arranged on a housing disposed aroun... | 05/09/2006 |
| 7004020 | 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... | 02/28/2006 |
| 6971271 | Fluid flow measuring device and method of manufacturing thereof In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic... | 12/06/2005 |
| 6928864 | Tool assembly and monitoring applications using same The present invention provides a tool assembly for use in field applications to monitor at least one condition in a well or other hole. The tool assembly may include a computing unit for directing operation of the tool assembly and may be sized to be operable in a h... | 08/16/2005 |
| 6860325 | Downhole flow meter This invention comprises the use of a variable orifice valve as a flow controller and flow meter. Pressure measurements are taken upstream and downstream of the variable orifice valve by way of a differential pressure measurement mechanism. The differential pressure... | 03/01/2005 |
| 6851444 | Closed loop additive injection and monitoring system for oilfield operations A system is provided that monitors at the wellsite injection of additives into formation fluids recovered through wellbores and controls the supply of such additives from remote locations. A pump supplies the selected additive from a source at the wellsite into the ... | 02/08/2005 |
| 6832515 | Method for measuring formation properties with a time-limited formation test An apparatus and method for determining at least one downhole formation property is disclosed. The apparatus includes a probe and a pretest piston positionable in fluid communication with the formation, and a series of flowlines pressure gauges, and valves configure... | 12/21/2004 |
| 6820702 | Automated method and system for recognizing well control events An automated method and system for recognizing a well control event includes determining a state of drilling operations. When drilling operations are in a circulating state, a benchmark for a relative flow value. The relative flow value is based on a flow of drillin... | 11/23/2004 |
| 6799634 | Tracer release method for monitoring fluid flow in a well A tracer release method for monitoring fluid flow in a well utilizes a deformable container having a liquid tracer material which container has an outlet which debouches into the neck portion of a venturi in a well conduit. The container has a wall which is at least... | 10/05/2004 |
| 6711947 | Conductive fluid logging sensor and method In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic... | 03/30/2004 |
| 6650280 | Measurement system and method System and methods are disclosed for fluid measurements which may be utilized to determine mass flow rates such as instantaneous mass flow of a fluid stream. In a preferred embodiment, the present invention may be utilized to compare an input mass flow to... | 11/18/2003 |
| 6578634 | Method of monitoring pumping operations of a service vehicle at a well site A method monitors pumping operations of a vehicle that pumps various fluid treatments down into a well being serviced at a well site. The method records the vehicle's engine speed and the values of one or more fluid-related variables, such as pressure, te... | 06/17/2003 |
| 6532813 | Method and device for determining a fill level of liquid in a container During the determination of a fill level of liquid in a container, a measuring chamber, in which there is initially the same fill level as in the container, is completely filled with liquid. The time required for completely filling the measuring chamber i... | 03/18/2003 |
| 6356205 | Monitoring, diagnostic, and reporting system and process A monitoring system determines characteristics of a fluid in a well. The system comprises a well module adapted to be disposed in a well, where the module comprises a probe and at least one sensor that senses characteristics of the fluid. The well module ... | 03/12/2002 |
| 6328103 | Methods and apparatus for downhole completion cleanup A method of performing a downhole well completion cleanup is provided. In a described embodiment, completion fluids from a first zone are flowed into a tubular string, and then the fluids are discharged into a second zone. An apparatus usable in the metho... | 12/11/2001 |
| 6176129 | Method and apparatus for acquiring data in a hydrocarbon well In a hydrocarbon well, a speed measurement is performed at substantially the same level as a determination of the proportions of the phases of the fluid flowing along the well in at least one local region. To this end, local sensors are placed on the hing... | 01/23/2001 |
| 6125934 | Downhole tool and method for tracer injection An injection apparatus and use thereof that comprises a plurality of spaced ejection ports from which the tracer composition can be ejected so as to be injected directly into a chosen layer of a stratified flow, and that in use can be adjusted such that t... | 10/03/2000 |
| 6076398 | Method for measuring of flow and flowmeter A measuring procedure and a flowmeter for the measurement of liquid flow in a hole bored in the ground, such as rock. The flowmeter consists of a long cylindrical body comprising: ring-shaped sealing elements (5) placed at a distance from each other in th... | 06/20/2000 |
| 6058771 | Determination of fluid influx or efflux When drilling a borehole for an oil well it is desirable to know when fluid is passing through the walls of the borehole between the borehole itself and the formation through which the borehole is passing. It has now been discovered that useful informatio... | 05/09/2000 |
| 5970422 | Method for generating a flow profile of a wellbore from pulsed neutron logs A method for generating a flow profile of a wellbore whereby a first measurement and a second measurement are collected for each point of a sequence of selected points along the wellbore. For each respective point in the sequence of points, the arithmetic... | 10/19/1999 |
| 5881807 | Injector for injecting a tracer into an oil or gas reservior An injector (1) for injecting a traceable material into an oil and/or gas reservoir is lowered down into a bore hole that is in communication with the reservoir. An electro-hydraulic system is activated to inject a traceable material stored in a container... | 03/16/1999 |
| 5861562 | Flow measurement mandrel A flow measurement having a substantially cylindrical housing with a valve element connected to an inner surface thereof. The valve is movable between an open position and a closed position in the bore. A secondary flow passageway is formed in the housing... | 01/19/1999 |
| 5804714 | Flow meter Flowmeter for locating zones containing currents in a bore hole made in a rock. The flowmeter comprises parting elements (1) for separating a measurement section (3) in the hole from the rest of the hole in a substantially pressure-tight manner; an open f... | 09/08/1998 |
| 5736637 | Downhole multiphase flow sensor A system for evaluating multiphase flow of a fluid downhole in a borehole. Dielectric permittivity electrodes generate a capacitance output signal through the fluid, and conductivity electrodes generate a conductivity output signal through the fluid. The ... | 04/07/1998 |
