Abstract: Devices, methods and systems for determining one or more properties of at least one fluid sample. A tube configured to receive the at least one fluid sample wherein the tube is placed in a pressure housing. Further, an excitation source configured to generate vibration of the tube whereby a circulation of an electrical current along a portion of the tube is subjected to at least one magnetic field produced by at least one magnet. Further still, at least one vibration sensor that converts vibrations of the tube into a measurement signal. Finally, a processor that receives the measurement signal determines a resonant frequency from the measurement signal using a frequency measuring device to determine a property of the one or more properties of the at least one sample fluid.

Abstract: Devices, methods and systems for determining one or more properties of at least one fluid sample. A tube configured to receive the at least one fluid sample wherein the tube is placed in a pressure housing. Further, an excitation source configured to generate vibration of the tube whereby a circulation of an electrical current along a portion of the tube is subjected to at least one magnetic field produced by at least one magnet. Further still, at least one vibration sensor that converts vibrations of the tube into a measurement signal. Finally, a processor that receives the measurement signal determines a resonant frequency from the measurement signal using a frequency measuring device to determine a property of the one or more properties of the at least one sample fluid.

Abstract: Devices, methods and systems for determining one or more properties of at least one fluid sample. A tube configured to receive the at least one fluid sample wherein the tube is placed in a pressure housing. Further, an excitation source configured to generate vibration of the tube whereby a circulation of an electrical current along a portion of the tube is subjected to at least one magnetic field produced by at least one magnet. Further still, at least one vibration sensor that converts vibrations of the tube into a measurement signal. Finally, a processor that receives the measurement signal determines a resonant frequency from the measurement signal using a frequency measuring device to determine a property of the one or more properties of the at least one sample fluid.

Abstract: Devices, methods and systems for making optical measurements of a fluid at elevated pressures and temperatures are disclosed. A cell is designed for the optical spectroscopic measurements of fluids or gas using light from ultra violet (UV) to far infrared wavelengths, among other wavelengths. A cell is described that is well suited for applications using very small fluid volumes, on the order of micro liters, such as microfluidic systems. Some described embodiments are suited for very high pressure and temperature environments (for example, 20 kpsi or greater at 175 degree C. or greater). Such conditions, for example, may be found in oilfield downhole environments. Some embodiments provide are inexpensive, and make use of replaceable lenses that are used as a pressure barrier and for collimation of the optical beam path for spectroscopic measurements.

Abstract: In one embodiment, a heat dissipating apparatus includes a chassis positionable within a housing of a downhole tool. The heat dissipating apparatus also includes a heat sink coupled to the chassis and a displacement mechanism coupled to the heat sink. The displacement mechanism is actuatable to move the heat sink, with respect to the chassis, between a first position and a second position such that in the first position the heat sink is radially retracted toward the chassis to form a gap between the heat sink and the housing and such that in the second position the heat sink is radially extended from the chassis to contact the housing.

Abstract: A downhole tool pumping apparatus comprising a body and an active valve block. The body comprises a cavity housing a reciprocating piston defining first and second chambers within the cavity. The active valve block comprises a plurality of active valves, wherein the plurality of active valves includes a first active valve fluidly connected to the first chamber of the body, the plurality of active valves includes a second active valve fluidly connected to the second chamber of the body, and each of the plurality of active valves is configured to be actively actuated between open and closed positions.

Abstract: Apparatus and methods to inject fluids downhole, such as: a sample chamber configured to provide a fluid in a wellbore extending into a subterranean formation; a flow line configured to be fluidly coupled to the subterranean formation; a piston disposed in and separating the sample chamber into first and second chambers; a first fluid port fluidly coupling the first chamber to the flow line; a second fluid port fluidly coupling the second chamber to a fluid source having a pressure greater than the pressure in the first chamber; and a flow regulator fluidly coupled to the first or second fluid port, and configured to regulate the flow of the fluid provided in the sample chamber into the formation.

Abstract: Embodiments disclosed herein relate to heat dissipating apparatus to be used with a downhole tool, including a tubular housing having an axis defined therethrough, a heat generating device disposed within the tubular housing, a heat sink disposed adjacent to the heat generating device and configured to dissipate heat from the heat generating device, and a displacement mechanism disposed within the tubular housing and configured to position the heat sink between a first position and a second position within the tubular housing in which, in the first position, a gap is formed between the heat sink and the tubular housing, and in the second position, the heat sink contacts the tubular housing.

Abstract: Devices, methods and systems for determining one or more properties of at least one fluid sample. A tube configured to receive the at least one fluid sample wherein the tube is placed in a pressure housing. Further, an excitation source configured to generate vibration of the tube whereby a circulation of an electrical current along a portion of the tube is subjected to at least one magnetic field produced by at least one magnet. Further still, at least one vibration sensor that converts vibrations of the tube into a measurement signal. Finally, a processor that receives the measurement signal determines a resonant frequency from the measurement signal using a frequency measuring device to determine a property of the one or more properties of the at least one sample fluid.

Abstract: Devices, methods and systems for making optical measurements of a fluid at elevated pressures and temperatures are disclosed. A cell is designed for the optical spectroscopic measurements of fluids or gas using light from ultra violet (UV) to far infrared wavelengths, among other wavelengths. A cell is described that is well suited for applications using very small fluid volumes, on the order of micro liters, such as microfluidic systems. Some described embodiments are suited for very high pressure and temperature environments (for example, 20 kpsi or greater at 175 degree C. or greater). Such conditions, for example, may be found in oilfield downhole environments. Some embodiments provide are inexpensive, and make use of replaceable lenses that are used as a pressure barrier and for collimation of the optical beam path for spectroscopic measurements.

Abstract: A downhole tool pumping apparatus comprising a body and an active valve block. The body comprises a cavity housing a reciprocating piston defining first and second chambers within the cavity. The active valve block comprises a plurality of active valves, wherein the plurality of active valves includes a first active valve fluidly connected to the first chamber of the body, the plurality of active valves includes a second active valve fluidly connected to the second chamber of the body, and each of the plurality of active valves is configured to be actively actuated between open and closed positions.

Abstract: A method for parity analysis and remedy calculation is provided. The method uses performance measurements that measure the timeliness, accuracy and availability of the services provided by an incumbent local exchange carrier (“ILEC”) to determine whether parity exists between services provided to the ILEC and services provided to a competitive local exchange carrier (“CLEC”). The performance measurements are compared at an appropriate level so that a like-to-like comparison is made. The difference between the average of the ILEC performance measurements and the average of the CLEC performance measurements is computed. An aggregate difference measurement is also computed and is used to determine whether parity exists. If parity does not exist, then a remedy is calculated.

Abstract: A method for parity analysis and remedy calculation is provided. The method uses performance measurements that measure the timeliness, accuracy and availability of the services provided by an incumbent local exchange carrier (“ILEC”) to determine whether parity exists between services provided to the ILEC and services provided to a competitive local exchange carrier (“CLEC”). The performance measurements are compared at an appropriate level so that a like-to-like comparison is made. The difference between the average of the ILEC performance measurements and the average of the CLEC performance measurements is computed. An aggregate difference measurement is also computed and is used to determine whether parity exists. If parity does not exist, then a remedy is calculated.