Patent application number | Description | Published |
20110031972 | METHOD AND SYSTEM OF DETERMINING AN ELECTRICAL PROPERTY OF A FORMATION FLUID - Determining an electrical property of a formation fluid. At least some of the illustrative embodiments are methods comprising drawing formation fluids into a tool within a borehole, applying a swept frequency electric field to the formation fluids by way of a first winding, inducing a current flow in a second winding based on the swept frequency electric field, and determining a property of the formation fluids based, at least in part, on the current flow in the second winding. | 02-10-2011 |
20110164468 | METHOD AND SYSTEM OF TRANSMITTING ACOUSTIC SIGNALS FROM A WELLBORE - Transmitting acoustic signals from a wellbore. At least some of the illustrative embodiments are methods including transmitting an acoustic signal comprising downhole data, receiving the acoustic signal (the receiving by a receiver disposed within the internal diameter of a casing in the wellbore) converting the acoustic signal to a corresponding first electromagnetic signal, and inducing a second electromagnetic signal in a tubing responsive to the first electromagnetic signal. | 07-07-2011 |
20120018152 | FLUID CONTROL IN RESERVIOR FLUID SAMPLING TOOLS - A pumping system comprising: a probe to suction a fluid from a fluid reservoir; a pump in fluid communication with said probe; a sensor for detecting phase changes in said pumping system, said sensor in fluid communication with said probe or pump, said sensor generating a sensor signal; a fluid exit from said pumping system, said fluid exit being in fluid communication with said pump; and a variable force check valve located between said probe and said fluid exit. | 01-26-2012 |
20120072128 | Determining Fluid Density - The density of a fluid is determined using a vibratory resonant densitometer in an environment. The densitometer includes a tubular sample cavity and other densitometer parts. The method includes measuring a plurality of parameters characterizing the environment. The method further includes adjusting a model of the sample cavity using the measured parameters. The method further includes receiving a sample fluid into the sample cavity. The method further includes vibrating the sample cavity to obtain a vibration signal. The method further includes calculating the density of the sample fluid using the model and the vibration signal. | 03-22-2012 |
20120167692 | ENERGY INTENSITY TRANSFORMATION - Apparatus, systems, and methods may operate to receive incident energy within a chamber defining a first part of an interaction volume that attenuates the incident energy as a function of path length to provide attenuated energy. Additional activity may include simultaneously transforming the attenuated energy characterized by a substantially exponential intensity function into resultant energy characterized by a substantially polynomial intensity function. The transformation may be accomplished using an interacted energy transformation element that defines a second part of the interaction volume, the transformation element operating to intercept the attenuated energy along a plurality of path lengths. Other activity may include transmitting the resultant energy to a receiver. Additional apparatus, systems, and methods are disclosed. | 07-05-2012 |
20120234107 | NON-CONTACT TORQUE MEASUREMENT APPARATUS AND METHD - Disclosed is an apparatus and method for accurately measuring torque in a rotating shaft. The apparatus comprises axially spaced magnet-detector pairs, mounted to rotate with the shaft and means for sensing relative rotation between the magnets. | 09-20-2012 |
20130067995 | APPARATUS AND METHODS OF DETERMINING FLUID VISCOSITY - Various embodiments include apparatus and methods of determining the viscosity of a fluid downhole in a well. A parameter of a response signal, obtained from driving a tube containing a fluid with an excitation signal for vibrating the tube, can be collected while maintaining the tube in a vibrating mode. The parameter can be evaluated to measure the viscosity of the fluid. In various embodiments, the fluid viscosity may be measured in-situ downhole in the well. | 03-21-2013 |
20130113468 | METHOD AND APPARATUS FOR MEASURING LINEAR DISPLACMENT - For some embodiments, a system includes a moveable structure, moveable in at least a linear direction relative to a supporting structure, a magnetic field sensor assembly including a magnetic field sensor, and a magnet, wherein one of the magnet and the magnetic field sensor is coupled to the moveable structure, and wherein the other of the magnet and the magnetic field sensor assembly is coupled to the supporting structure, and wherein the magnetic field sensor assembly is configured to determine the relative position of the magnet to the magnetic field sensor. | 05-09-2013 |
20130180330 | FLUID DENSITOMETER WITH TEMPERATURE SENSOR TO PROVIDE TEMPERATURE CORRECTION - A sensor for measuring a density of a fluid is provided. The sensor ( | 07-18-2013 |
20130199286 | Non-Invasive Compressibility and In Situ Density Testing of a Fluid Sample in a Sealed Chamber - In situ density and compressibility of a fluid sample are determined for a fluid sample collected downhole. The density and compressibility of the fluid sample is determined by measuring a distance to a piston contained within the sample chamber using an external magnetic field sensor that senses a magnetic field emanating from a magnetic provided on the piston internal to the sample chamber. The testing is performed quickly and at the surface in a noninvasive fashion (i.e., without opening the sample chamber). | 08-08-2013 |
20130311099 | METHOD AND APPARATUS FOR EVALUATING FLUID SAMPLE CONTAMINATION BY USING MULTI SENSORS - A method of evaluating fluid sample contamination is disclosed. A formation tester tool is introduced into a wellbore. The formation tester tool comprises a sensor. Sensor data is acquired from the sensor and a contamination estimation is calculated. A remaining pump-out time required to reach a contamination threshold is then determined. | 11-21-2013 |
20140096957 | FLUID CONTROL IN RESERVOIR FLUID SAMPLILNG TOOLS - A pumping system includes a probe to suction a fluid from a fluid reservoir, a pump in fluid communication with the probe, and a sensor for detecting phase changes in said pumping system. The sensor is in fluid communication with the probe or pump and is operable to generate a sensor signal. The pumping system also includes a fluid exit from the pumping system that is in fluid communication with said pump, and a variable force check valve that is located between the probe and fluid exit. | 04-10-2014 |
20140111209 | METHODS AND SYSTEMS FOR ANALYZING FORMATION PROPERTIES WHEN PERFORMING SUBTERRANEAN OPERATIONS - A method of analyzing a subterranean formation is disclosed. A first signal is transmitted from a transmitter to the formation and a second signal which is a reflection of the first signal is received. A third signal, which is the second signal reversed in time, is then transmitted to the formation. A fourth signal which is a reflection of the third signal from the formation is then received and monitored. | 04-24-2014 |
20140195215 | MODELING WELLBORE FLUIDS - Techniques for modeling a wellbore fluid that includes a base fluid and one or more fluid additives includes identifying a target viscosity profile of the wellbore fluid; determining an initial set of values of the fluid additives that are based at least in part on the target viscosity profile; determining, with one or more non-linear predictive models, a computed viscosity profile of the wellbore fluid and a computed set of values of the fluid additives based, at least in part, on the initial set of values of the fluid additives; comparing the computed viscosity profile and at least one of the computed set of values with a specified criteria of the wellbore fluid; and preparing, based on the comparison, an output including the computed viscosity profile and at least one of the computed set of values of a resultant wellbore fluid. | 07-10-2014 |
20140339406 | Active Control of Thermal Effects on Optical Computing Devices - Disclosed are systems and methods for actively controlling the temperature of an integrated computational element used in an optical computing device in order to affect its performance. One method includes providing an integrated computational element configured detect a characteristic of a substance and provide a transmission profile via a detector corresponding to the characteristic, and controlling a temperature of the integrated computational element in order to maintain the transmission profile within an optimal operating range. | 11-20-2014 |
20140352953 | Integrated Computational Element Analysis of Production Fluid in Artificial Lift Operations - A downhole pump assembly for pumping production fluid to a surface of a well. The downhole pump assembly includes a fluid pump that is operable to pump the production fluid to the surface. An optical computing device having at least one integrated computational element and at least one detector. The at least one integrated computational element is configured to optically interact with the production fluid proximate the fluid pump and is configured to generate optically interacted light. The at least one detector is arranged to receive the optically interacted light and to generate an output signal corresponding to a characteristic of the production fluid. | 12-04-2014 |
20150015413 | DOWNHOLE TELEMETRY SYSTEMS AND METHODS WITH TIME-REVERSAL PRE-EQUALIZATION - Specific embodiments of disclosed downhole telemetry systems and methods employ time-reversal pre-equalization. One downhole telemetry system embodiment includes an acoustic transducer and a digital signal processor. The acoustic transducer transmits an acoustic signal to a distant receiver via a string of drillpipes connected by tool joints. The digital signal processor drives the acoustic transducer with an electrical signal that represents modulated digital data convolved with a time-reversed channel response. Due to the use of time-reversal pre-equalization, the received signal exhibits substantially reduced intersymbol interference. | 01-15-2015 |
20150070000 | SINGLE MAGNET FLUID DENSITOMETER - An instrument for determining fluid properties is provided. The instrument ( | 03-12-2015 |
20150077265 | TELEMETRY ON TUBING - In some embodiments, an apparatus and a system, as well as a method and an article, may operate to program a first acoustic repeater to transmit information at a first operating frequency; to couple the first acoustic repeater circumferentially around a coiled tubing portion, an inner diameter of the first acoustic repeater being about equal to an outer diameter of the coiled tubing portion; to program a second acoustic repeater to receive information transmitted by the first acoustic repeater; and to receive sensor information transmitted at the first operating frequency by the first acoustic repeater and relayed by the second acoustic repeater, the second acoustic repeater being coupled to the coiled tubing portion uphole from the first acoustic repeater. Additional apparatus, systems, and methods are disclosed. | 03-19-2015 |