4results about How to "Long application life" patented technology

The invention belongs to the technical field of petroleum well logging, and discloses a method for eliminating array induction direct coupling signals, which comprises the following steps of: calibrating the unit thickness change of an adjusting piece and the quantitative contribution of each receiving coil direct coupling signal through electromagnetic simulation modeling and an underground environment equivalent experiment; the target thickness is solved and replaced through a linear correction model, closed-loop calibration is matched to enable a direct coupling signal to approach a preset threshold value, based on array induction logging, an existing three-coil system structure is difficult to thoroughly offset the direct coupling signal due to machining errors, useful signal extraction is seriously disturbed, the method does not need to modify a core structure of an instrument, operation is easy and convenient, adaptability is high, and the method is suitable for large-scale popularization and application. Direct coupling signals are eliminated accurately and thoroughly, the measurement accuracy of the stratum conductivity is effectively improved, and reliable data support is provided for oil and gas reservoir identification and evaluation.

The application belongs to the technical field of metal surface treatment process, and particularly discloses a process method for prolonging the service life of hafnium material. The process method is based on the relationship between the service life of hafnium material and its performance. The process method provided by the application refines the grains of hafnium in microcosm through cryogenic treatment, so that the hafnium exhibits excellent oxidation resistance in macrocosm, thereby ensuring that the service life of the treated hafnium material is greatly prolonged when the treated hafnium material is applied. The application also discloses the application of the process method in electrodes for plasma cutting, that is, the process is applied to the production of electrodes for plasma cutting, and the hafnium particles treated by the process method are used as emitters, so that the service life of the electrodes can be significantly improved, and the service life of the electrodes can be increased to close to the service life of imported electrodes, and the electrodes have lower cost than the imported electrodes, thereby obviously accelerating the development of plasma cutting technology.

The application provides a combined vanadium-phosphorus catalyst system and application thereof, which comprises at least two catalyst beds, the total porosity of the catalyst bed near the raw material inlet is the largest, different vanadium-phosphorus catalysts are filled in different catalyst beds, and the general formula of the vanadium-phosphorus catalyst is VP x M y O z Vanadium-phosphorus oxide active component, wherein x=0.9-2, y=0-0.3, z is a value satisfying a stoichiometric balance, and M is from a promoter element component. The combined vanadium-phosphorus catalyst system can effectively reduce the reaction hot spot and catalyst bed pressure drop, improve the catalytic performance and maintain the operation stability of the catalyst in the gas phase selective oxidation reaction of hydrocarbons.

The application discloses a processing method of a wing piece, which comprises the following steps: first, connecting a processed piece with a processing tool; second, stacking equal-height iron and a base in sequence between flat mouth vices, and clamping the flat mouth vices on both sides of the base; third, contacting a dial gauge with a measuring side surface of the base, dragging the base by the flat mouth vices, observing and reading the value of the dial gauge, adjusting the base which does not meet the standard until the value change meets the standard; fourth, contacting the dial gauge with a measuring top surface of the base, dragging the base by the flat mouth vices, observing and reading the value of the dial gauge, adjusting the base which does not meet the standard until the value change meets the standard; and fifth, processing rectangular ends of the processed piece by using a processing tool until all the rectangular ends are processed into the shape of the wing piece. In application, the flat mouth vices can clamp multiple processing tools at a time, so that the flat mouth vices can calibrate multiple processing tools at a time, and the machine tool can process multiple processed pieces at a time after calibration. Therefore, the processing efficiency is high.