摘要:
Methods and apparatus to evaluate subterranean formations are described. An example method of evaluating a subterranean formation includes, obtaining a first sample from a first wellbore location. Additionally, the example method includes obtaining a second sample from a second wellbore location different than the first wellbore location. Further, the example method includes mixing the first sample with the second sample in a flowline to obtain a substantially homogenous mixture. Further still, the example method includes measuring a parameter of the mixture to evaluate the subterranean formation.
摘要:
A downhole tool, configured to be suspended in a borehole traversing an earth formation, includes a downhole data acquisition system placed in the tool body and electrically connected to an electric power generator at the formation surface. The downhole data acquisition system includes a sensor for detecting local conditions in the borehole, and a transducer for transducing the voltage of an input signal from high to low or low to high. The transducer having a gallium nitride or silicon carbide based discrete semiconductor device.
摘要:
A downhole tool, configured to be suspended in a borehole traversing an earth formation, includes a downhole data acquisition system placed in the tool body and electrically connected to an electric power generator at the formation surface. The downhole data acquisition system includes a sensor for detecting local conditions in the borehole, and a transducer for transducing the voltage of an input signal from high to low or low to high. The transducer having a gallium nitride or silicon carbide based discrete semiconductor device.
摘要:
An intake module for a vehicular engine has a casing that is constructed of an air cleaner housing portion and an electronic control unit (ECU) housing portion. The air cleaner housing portion that houses an air cleaner is mounted on the engine. The ECU housing portion that houses an ECU is connected with the air cleaner housing portion. A plurality of reinforcement ribs is formed on an outer periphery of the ECU housing portion.
摘要:
The electronic apparatus includes a circuit board on which electronic component is mounted and a chassis housing the circuit board. The chassis is provided with a biasing force applying member applying a biasing force to at least one of top and bottom surfaces of the circuit board to hold the circuit board in position such that the circuit board is allowed to be displaced in a direction parallel to a plane of the circuit board.
摘要:
The electronic apparatus includes a circuit board on which electronic component is mounted and a chassis housing the circuit board. The chassis is provided with a biasing force applying member applying a biasing force to at least one of top and bottom surfaces of the circuit board to hold the circuit board in position such that the circuit board is allowed to be displaced in a direction parallel to a plane of the circuit board.
摘要:
A system and method is disclosed for utilizing a radio frequency communication system to wirelessly exchange data with well logging tools and external devices. A logging tool component is operably fitted with an extension antenna which travels through the thick casing of the logging tool. The extension antenna enables data exchange, for example, between radio frequency identification tags inside the logging tool and devices outside of the logging tool.
摘要:
A system and method is disclosed for utilizing a radio frequency communication system to wirelessly exchange data with well logging tools and external devices. A logging tool component is operably fitted with an extension antenna which travels through the thick casing of the logging tool. The extension antenna enables data exchange, for example, between radio frequency identification tags inside the logging tool and devices outside of the logging tool.
摘要:
An intake module has an electronic control unit (ECU) housing portion that houses an ECU. The ECU housing portion is provided in a manner that a lateral direction of the ECU housing portion is approximately coincident with a direction of an intake air passage that is located upstream from the ECU housing portion. Intake air is blown to an air blown area that is located on one side of the ECU housing portion. Heat-producing components and low heat-resistant components are mounted in the air blown area and in an area away from the air blown area, respectively. A plurality of heat-radiating fins is arranged in the air blown area along with a stream of the intake air.