Abstract: Embodiments presented provide for high reliability and low cost electronics used in hydrocarbon recovery operations. In embodiments, the low cost electronics are used in subsea applications.

Abstract: Systems and methods may be used to implement twinned or linked digital avatars as an edge avatar and a cloud avatar for a particular physical device in an industrial site. The edge avatar is configured to ingest data generated in the industrial site and to use a model for the particular physical device to obtain device-specific parameters related to the particular physical device. The edge avatar also sends information related to the device-specific parameters to a cloud avatar that is linked to the edge avatar. The cloud avatar is implemented in a cloud network away from the industrial site. The edge avatar is also configured to receive updates from the cloud avatar for the edge avatar and to refine the edge avatar using the updates.

Abstract: Systems and methods may be used to implement twinned or linked digital avatars as an edge avatar and a cloud avatar for a particular physical device in an industrial site. The edge avatar is configured to ingest data generated in the industrial site and to use a model for the particular physical device to obtain device-specific parameters related to the particular physical device. The edge avatar also sends information related to the device-specific parameters to a cloud avatar that is linked to the edge avatar. The cloud avatar is implemented in a cloud network away from the industrial site. The edge avatar is also configured to receive updates from the cloud avatar for the edge avatar and to refine the edge avatar using the updates.

Abstract: Apparatus and methods for downhole information storage and transmission are disclosed herein. An example method disclosed herein includes losslessly compressing at least a portion of information received from a portion of a downhole tool disposed in a wellbore. The information is compressed via a processor disposed on the downhole tool and communicatively coupled to the portion of the downhole tool. The example method further includes transmitting at least a portion of the compressed information to a receiver disposed at or near a surface of Earth.

Abstract: A system includes a network, multiple different types of survey sensors connected to the network, and a controller connected to the network. The multiple different types of survey sensors are configured to communicate different types of measurement data over the network to the controller.

Abstract: A system includes a network, multiple different types of survey sensors connected to the network, and a controller connected to the network. The multiple different types of survey sensors are configured to communicate different types of measurement data over the network to the controller.

Abstract: The principles described herein relate to methods for soldering electrode terminals, pins or lead-frames of commercial electric components for high temperature reliability. In one embodiment, prior to soldering the electric components, a pre-plated solder layer is removed from the lead frame or pins, and nickel and/or gold films are formed with electroless plating. The removal of the pre-plated solder layer avoids excess pre-plated Sn with high-Pb solder that lowers the melting point to between 180° C. and 220° C. and weakens solder joints. The nickel layer formed with an electroless plating acts as a barrier to the interdiffusion of tin from solder with copper of the lead frame material, which may otherwise occur at high temperatures. Interdiffusion forms an intermetallic compound layer of copper and tin and degrades solder joint strength. The novel soldering processes improve high temperature reliability of solder joints and extend electronics life-time.

Abstract: A downhole recorder system for use with a downhole assembly to be lowered into a borehole comprises at least one recorder uniquely associated to a determined sub-assembly of the downhole assembly. The at least one recorder allows to store operating data related to the determined sub-assembly. The stored operating data are extractable at least when the determined sub-assembly is disassembled from the downhole assembly.

Abstract: The principles described herein relate to methods for soldering electrode terminals, pins or lead-frames of commercial electric components for high temperature reliability. In one embodiment, prior to soldering the electric components, a pre-plated solder layer is removed from the lead frame or pins, and nickel and/or gold films are formed with electroless plating. The removal of the pre-plated solder layer avoids excess pre-plated Sn with high-Pb solder that lowers the melting point to between 180° C. and 220° C. and weakens solder joints. The nickel layer formed with an electroless plating acts as a barrier to the interdiffusion of tin from solder with copper of the lead frame material, which may otherwise occur at high temperatures. Interdiffusion forms an intermetallic compound layer of copper and tin and degrades solder joint strength. The novel soldering processes improve high temperature reliability of solder joints and extend electronics life-time.

Abstract: A downhole recorder system for use with a downhole assembly to be lowered into a borehole comprises at least one recorder uniquely associated to a determined sub-assembly of the downhole assembly. The at least one recorder allows to store operating data related to the determined sub-assembly. The stored operating data are extractable at least when the determined sub-assembly is disassembled from the downhole assembly.

Abstract: An ultrasound apparatus for measuring a fluid flow rate includes a processor which receives an analog signal from a receiver transducer then transforms it into a digitized signal used for determining the fluid flow rate. The processor includes a bandpass sigma-delta converter having a bandpass loop filter, and a digital-to-analog converter in a feedback loop.

Abstract: A method for measuring a fluid flow rate between two points of a fluid flow according to which a measurement of the respective propagation times of two acoustic signals transmitted in opposite directions is combined with a measurement of acoustic phase shifts respectively induced in each signal. Each received signal is sampled and digitized and the corresponding acoustic phase shift is determined by synchronous detection. During successive iterations, a programmable phase shift dependent on the value of the acoustic phase shift obtained by synchronous detection in the previous iteration is determined for each iteration, so that the result of the synchronous detection step in the current iteration is as close as possible to zero, and the acoustic phase shift is therefore substantially the same as the last programmable phase shift.

Abstract: The invention relates to ultrasound apparatus for measuring the flow speed of a fluid, the apparatus comprising first and second ultrasound transducers disposed at points that are spaced apart in the direction of fluid flow, a transmitter module, a receiver module, and switch means organized so that each of the first and second transducers operates alternately as a transmitter and as a receiver. The transmitter module includes at least one transmission signal generator whose output is permanently connected via two logic gates each followed by a respective resistive divider bridge to a respective first terminal of the first and second transducer, and in that the first and second switch means are interposed respectively between the first terminals of said first and second transducers and the receiver module.

Abstract: A physical parameter represented by variation in time of a physical magnitude G capable of varying between a minimum value G.sub.min and a maximum value G.sub.max is determined. The physical magnitude G is measured at variable time intervals referred to as sampling times. After each measurement of the physical magnitude G, the corresponding value of the physical parameter, and also the theoretical maximum error that could have occurred in the determination of the physical parameter are determined. The sampling time prior to each new measurement of the physical magnitude G is determined in such a manner as to ensure that a predetermined error threshold E.sub.max is not exceeded while determining the value of the physical parameter corresponding to the new measurement of the physical magnitude G.

Abstract: A modulated integrator circuit frequency modulates an input signal and has an integrator comprised of an amplifier (31) and an intregrating capacitor (35) connected across an input and an output of the amplifier. The circuit further comprises a storage capacitor (36) in addition to any switching capacitors (C) associated with the modulation of the input signal if present. The storage means (36) is connectable between the input and the output of the amplifier in parallel with the integrating capacitor. The storage capacitor stores a charge associated with the voltage of the output of the amplifier and transfer such charge to the integrating capacitor to enable reversal of the charge of the integrating capacitor in synchronism with the frequency modulation of the input signal.