102 results about "Degasser" patented technology

The invention discloses a while-drilling barrel rock debris and gas logging sample collecting device. The while-drilling barrel rock debris and gas logging sample collecting device comprises a liquid-sand separation system, a rock debris collecting system and a gas logging sample collecting system. The liquid-sand separation system is used for separating while-drilling well drilling fluid into drilling fluid liquid and rock debris and respectively conveying the drilling fluid liquid and the rock debris to the gas logging sample collection system and the rock debris collection system, and rock debris samples are collected through the rock debris collection system; the gas logging sample collection system comprises a quantitative metering mechanism and a degassing mechanism, and the quantitative metering mechanism quantitatively conveys the drilling fluid to the degassing mechanism; the degassing mechanism comprises a heating mechanism and a vacuum stirring degassing mechanism, and the drilling fluid is degassed through the heating mechanism and the vacuum stirring degassing mechanism to obtain the gas logging sample; the problems that an electric degasser cannot conduct quantitative degassing, oil gas in the C6-C8 range in mud cannot be removed, and the timeliness of manual rock debris collection is poor are effectively solved.

The application relates to the technical field of gas logging equipment, and discloses an explosion-proof electric degasser for gas logging, which aims to solve the problem of affecting the gas logging operation efficiency caused by stopping and replacing the filter element. The stirring paddle shaft is arranged in the horizontal cylinder, and the exhaust port is arranged above the vertical cylinder. When in use, the drilling fluid first enters the horizontal cylinder, is beaten by the paddle blades in sequence, and is then dispersed into fine droplets, so that the gas in the drilling fluid escapes upward. Then, the liquid in the horizontal cylinder enters the vertical cylinder and flows to the bottom of the vertical cylinder, while the escaped gas in the horizontal cylinder is discharged upward to the exhaust port at the top of the vertical cylinder. Through the above action, the stirring paddle blades and the exhaust port are in different chambers, so that the amount of droplets splashing upward and being discharged into the exhaust port is reduced, the time for the filter element in the filter element separator to be completely blocked is prolonged, and the influence on the gas logging operation efficiency is reduced.

The present invention discloses a constant-pressure water-making vacuum degassing unit, comprising a water-making pipe, a filter assembly provided at the end of the water-making pipe, the filter assembly comprising a water inlet Y-tube, a sealed bearing provided on the inner side of the water inlet Y-tube, a filter seat installed on the sealed bearing, a filter screen installed on the inner side of the filter seat, a filter outlet provided on the surface of the filter seat, a driven helical gear installed at one end of the filter seat, a motor seat provided on one side of the water inlet Y-tube, and a filter motor installed on the motor seat; by setting the unit with the water inlet filter structure, when using the unit in the application, water flow can be filtered at the water inlet stage, avoiding long-term water flow scouring causing excessive scale inside the equipment, and the structure is rotatable during filtering, which can avoid the deterioration of the filtering effect caused by a fixed filtering method after being used for a period of time, thereby improving the practicality of the device.

The invention belongs to the technical field of oil fields, mines and the like, and particularly relates to a gas logging data comprehensive correction method based on experimental analysis, which comprises the following steps: collecting engineering parameters, gas logging data and drilling fluid logging data; carrying out statistics on the engineering parameter distribution condition of a hydrocarbon reservoir section in the research area, and extracting standard engineering parameter data by taking a median as a target value; performing engineering parameter theoretical correction on the gas logging data of the target well according to the standard engineering parameter data; according to the drilling fluid logging data distribution condition, a degassing efficiency experiment of specified drilling fluid performance and degasser types is carried out, and hydrocarbon concentration measurement values of different degassers are obtained; and according to the drilling fluid logging data of the target well and the hydrocarbon concentration measurement values of the different degassers, a degassing efficiency correction coefficient is extracted, degassing efficiency correction is carried out on the theoretically corrected gas logging data, and finally corrected gas logging data is obtained. The problem that the explanation precision of an existing method is difficult to improve is solved.

The utility model belongs to the technical field of ammonia nitrogen detection, and discloses a secondary derivation device for ammonia nitrogen detection, which comprises a first three-way valve, a second three-way valve, a first heating reaction unit, a second heating reaction unit, a degasser, a detector, a first container and a second container. The ammonia nitrogen sample is firstly mixed with the derivative reagent A pumped out of the first container, is further fully mixed in the first heating reaction unit under a certain temperature condition, is then mixed with the derivative reagent B pumped out of the second container, and is fully reacted in the second heating reaction unit; according to the secondary derivation device, the problem that ammonia nitrogen cannot be detected in an ultraviolet-visible light detector is solved, the ammonia nitrogen can be directly detected at 670-720 nm through the secondary derivation device, the use amount of a sample is small, and the reaction is fast.

The present invention relates to the technical field of degassing units, and discloses a constant-pressure water-supplementing vacuum degassing unit for a closed water use system, comprising a mounting plate, a water inlet pipe fixedly connected to the top of the mounting plate, a water supply pump fixedly connected to the outer surface of the water inlet pipe through a pipeline, and a water supply pump fixedly connected to the outer surface of the water supply pipe. The constant-pressure water-supplementing vacuum degassing unit for a closed water use system drives a mounting ring to rotate back and forth through a first transmission mechanism, and the mounting ring drives a first cleaning ring frame and a second cleaning ring frame to rotate through a transmission column and a transmission plate, and at the same time supplies water to the flushing pipe through a water supply mechanism, and the flushing pipe flushes and cleans scale on the inner wall of the air pressure tank and the outer surface of the air bag through a flushing nozzle, and then moves the first cleaning ring frame and the second cleaning ring frame upward through the second transmission mechanism, thereby realizing comprehensive and automatic cleaning of the scale on the air pressure tank and the air bag, greatly improving the cleaning efficiency and cleaning effect.

The invention provides a rapid defoaming and degassing device for foamed crude oil, which can realize efficient defoaming and degassing of the crude oil. Comprising a horizontal tank body serving as a main body space for oil-gas separation and oil-water separation, the horizontal tank body is provided with a liquid inlet, a liquid outlet, a gas outlet and a drain outlet, the liquid inlet and the liquid outlet are formed in the head side and the tail side of the tank body respectively, and the liquid outlet comprises an oil outlet communicated with the upper portion of the side wall of the tail side of the tank body and a water outlet communicated with the lower portion of the side wall of the tank body; the rotational flow pipe is communicated with the liquid inlet in the head side of the tank body, an oil inlet and a first exhaust pipe are arranged on the rotational flow pipe, and the rotational flow pipe is used for introducing crude oil into the tank body through the rotational flow pipe and pre-separating oil and gas in the introduction process; the multiple stages of degassing mechanisms are arranged in the tank body, comprise a first-stage degassing mechanism, a second-stage degassing mechanism and a third-stage degassing mechanism which are sequentially arranged from the head side to the tail side of the tank body, and are used for degassing crude oil; the heating mechanism is arranged at the lower part in the tank body and is used for heating crude oil; and the exhaust mechanism is communicated with the gas outlet at the top of the tank body and is used for exhausting crude oil removed gas.

A shock wave generator comprising a base, a plurality of transducers positioned on the base, a control assembly electrically coupled to the plurality of transducers, and a first chamber with a first fluid. The first chamber is at least partially defined by the base. The shock wave generator further comprises a second chamber with a second fluid, a membrane positioned between the first chamber and the second chamber, and a circulation assembly fluidly coupled to the first chamber. The circulation assembly includes a pump that circulates the first fluid, a chiller that controls the temperature of the first fluid, and a degasser that removes bubbles from the first fluid.

A method of making non-grain oriented (NGO) electrical steel is disclosed. The method includes tapping liquid steel out of a primary steelmaking furnace, deoxidizing the liquid steel before or after transferring the deoxidized liquid steel to a ladle metallurgy furnace, removing sulfur at the ladle metallurgy furnace (LMF), adding fluxes and deoxidizer to the ladle slag and / or skimming off ladle slag to prevent sulfur reversion, transferring the deoxidized liquid steel from the ladle metallurgy furnace to an RH degasser for carbon removal by blowing oxygen, and adding fluxes at the RH degasser before oxygen blowing to fortify the bottom layer of the ladle slag to prevent sulfur reversion. The removal of oxygen and sulfur prior to transferring the liquid steel to the RH degasser facilitates nitrogen removal and prevents carbon pick up during the step of adding fluxes and arcing for sulfur removal. Oxygen blowing at the RH also lowers titanium pickup. The ultra low levels of carbon, nitrogen, sulfur, and titanium in the NGO steel provide excellent magnetic properties.

The novel quantitative degasser comprises a support, a plurality of fixing plates, a mounting plate, a plurality of mounting holes and a drilling fluid outlet buffer mechanism, the support is of a hollow cuboid structure, and the fixing plates are of a cuboid structure and are arranged on the left side and the right side of the top of the support in a left-right opposite mode; the mounting plates are arranged at the bottom of the drilling fluid outlet buffer mechanism corresponding to the positions between the left and right groups of fixing plates, a plurality of mounting holes are uniformly formed in the fixing plates and the mounting plates, and the drilling fluid outlet buffer mechanism is arranged at the top of the bracket; the support, the fixing plates, the mounting plate, the mounting holes and the drilling fluid outlet buffering mechanism are all located in the buffering tank. According to the scheme, the performance defect of the degasser is overcome, the degassing efficiency and quantificaiton are improved, the sensor installation is optimized, the monitoring convenience and the space utilization rate are improved, the installation adaptability and the working condition compatibility are enhanced, the safety and the system compatibility are improved, the cost performance is high, and the cost is low.

Sediment treatment assembly comprising a number of sequentially arranged devices for processing and stabilizing organic sediment, including one or more toxic or inflammable gas components and to remove larger particulate matter and water and to transfer the residual organic sediment to storage. The assembly comprises: - a degasser (3) arranged to remove gas and at least one of ventilator (5) or an enclosed flare system (6) - a mechanical separator (7) arranged to separate out coarse particles; - a first water reduction device (10); - a second water reduction device (12); - a water treatment unit (15) to process effluent water prior to its disposal.

The invention relates to the technical field of drilling fluid degassing devices and using methods, in particular to a direct injection type drilling fluid degasser and a using method.The direct injection type drilling fluid degasser comprises a liquid collecting tank, an auxiliary tank, an elevated pipe and a degasser, the degasser comprises a degasser cylinder, the degasser cylinder is hung and fixed in the liquid collecting tank, a stirring mechanism is arranged in the degasser cylinder, and the auxiliary tank is connected with the elevated pipe; a liquid inlet is formed in the lower portion of the degassing cylinder and fixedly communicated with a leading-in mechanism, an outlet of the elevated pipe corresponds to an inlet of the leading-in mechanism, a liquid outlet is formed in the upper portion of the degassing cylinder, and an overflow groove is formed in the inner side, corresponding to the liquid outlet, of the degassing cylinder. The method has the technical advantages that data distortion caused by repeated degassing after the degassed drilling fluid is mixed with the new drilling fluid can be avoided, the removed gas can only be discharged from the gas outlet, the method has a good degassing effect and data consistency on the drilling fluid, and an accurate stratum real data basis is provided for reservoir identification and evaluation.

Devices, systems, and methods for debris removal from a degasser probe are described herein. In some examples, one or more embodiments include a degasser probe comprising a suction head to receive drilling fluid and cause the drilling fluid to be transmitted to a degasser during a drilling operation, a strainer screen located upstream of the suction head to filter the drilling fluid during the drilling operation, and a worm screw located proximate to the strainer screen, where the worm screw is axially rotatable to remove debris from the strainer screen during the drilling operation.

The invention belongs to the technical field of vacuum degassers, and particularly relates to a vacuum degasser applied to a water circulation system, the vacuum degasser comprises a base, a vacuum tank and a vacuum pump are fixedly mounted at the top of the base, a control box is arranged above the base, and the vacuum degasser is characterized by further comprising a connecting plate. The height of the control box can be adjusted, so that workers with different heights can operate and use the control box conveniently, more convenience is achieved, it is guaranteed that disassembled fastening bolts and nuts can be placed in the corresponding storage grooves, wrenches can be placed in the storage grooves, and therefore next assembling is facilitated; the situation that fastening bolts and nuts are lost is avoided, it is guaranteed that the high-low position, the left-right position and the irradiation angle of the illuminating lamp can be effectively adjusted, when maintenance is needed at night, the interior of the control box can be conveniently illuminated, maintenance personnel can conveniently watch the control box, and the situation of misoperation is prevented.

A degasser 100 comprising a fluid line 150, a first 120 and second 130 degasser chamber coupled to the fluid line at a first 121 and second 131 coupling point, a suction device 110 coupled to the flui

The utility model relates to a double-station on-line degasser which comprises a fixed mounting frame and a molten aluminum holding furnace, a plurality of guide columns are arranged on the fixed mounting frame, a refining main machine is arranged on the guide columns, the refining main machine comprises a lifting motor, a lifting rack, a rotating motor, a graphite rotating shaft and a graphite rotating disc, the lifting rack is sleeved on the guide columns, and the rotating motor is sleeved on the graphite rotating disc. The lifting motor is driven to lift up and down along the guide column; the rotating motor is installed on the lifting rack, and the graphite rotating disc is connected to the rotating motor through a steel shaft and connected to the lower end of the graphite rotating shaft. The molten aluminum holding furnace is provided with a refining opening and a liquid taking opening, and the graphite rotating disc is located in the refining opening. According to the utility model, double stations are realized, molten aluminum at two refining ports can be refined, and the quality of the molten aluminum is further improved.

The application relates to the technical field of energy-saving, carbon-reducing and low-energy-consumption building technology, in particular to a high-efficiency air source heat pump station house system which comprises an intelligent control system, an air source heat pump system, a circulating pump set, a constant-pressure water-supplementing vacuum degassing unit, a dirt-removal system, a soft water system and pipelines and valve pieces connected with the various units. The intelligent control system manages the high-performance air source heat pump unit to produce cold and heat in batches in different zones, the cold and heat is supplied to air conditioners or heating ends through the integrated high-efficiency circulating pump set via low-resistance pipelines and valve pieces arranged in the system, the cold and hot water is subjected to the dirt-removal system and the constant-pressure water-supplementing vacuum degassing unit after being used in the ends and before being returned to the unit, a series of innovative means such as the arrangement of electric valves matched with the zones and the interlocking with the heat pump unit and the water pump are adopted, so that the energy-saving and carbon-reducing operation is realized, and the system is finely operated and adjusted according to the zones.

The utility model discloses a circulating water vacuum degasser which comprises a mounting plate, a degassing mechanism is fixedly mounted at the top of the mounting plate, a degassing pump is fixedly mounted at the top of the mounting plate and located on one side of the degassing mechanism, and the degassing mechanism is fixedly communicated with the degassing pump through a connecting pipe. One side of the degassing mechanism is fixedly communicated with a filtering mechanism for removing large impurities in the circulating water. The treatment temperature of circulating water can be increased through the degassing mechanism, the degassing speed of gas in water in the degassing mechanism can be increased through the degassing mechanism with the high internal environment temperature, and a low-pressure even vacuum environment can be formed through the degassing pump. The degassing mechanism can be conveniently utilized to quickly remove gas in the circulating water, and the circulating water needing to be treated can be preliminarily filtered through the filtering mechanism before degassing is carried out, so that impurities in the circulating water can be prevented from entering the whole device to influence normal use of the device.

This invention discloses a drilling fluid degassing efficiency determination device and method based on a multi-stage degassing-index cumulative first-efficiency method, belonging to the field of oil and gas exploration. The device includes a circulation tank system, a stirring system, and a suction pump system. The circulation tank system includes at least two circulation tanks for alternately storing and transporting gas-bearing drilling fluid. The circulation tank system and the stirring system are intermittently connected via a first valve group and another intermittently connected via a second valve group. The exhaust port of the stirring tank is connected to a chromatograph via a gas pipeline. The suction pump system includes a suction pump, which is connected to the circulation tank via a fifth valve. The method uses experimentally measured multi-stage degassing gas component content data to perform exponential curve fitting to determine the total gas content of the drilling fluid. The degassing efficiency of the degasser on the drilling fluid is determined by the ratio of the gas components degassed in the first stage to the total gas content. This invention can accurately determine the drilling fluid degassing efficiency, providing a basis for accurately evaluating formation gas content.

The present invention relates to the technical field of degassing units, and discloses an exhaust device of a constant-pressure water-supply vacuum degassing unit, comprising a mounting plate, an expansion tank fixedly connected to the top of the mounting plate, two water-supply pumps fixedly connected to the top of the mounting plate, a degassing tank fixedly connected to the top of the mounting plate, and the water-supply pump connected to the expansion tank and the degassing tank through a pipeline. In the exhaust device of the constant-pressure water-supply vacuum degassing unit, when the degassing tank degases the gas in the incoming water, the driving mechanism drives the transmission pipe to rotate, the transmission pipe drives the mounting plate to rotate, the transmission mechanism on the mounting plate drives the transmission column and the first extrusion plate to move back and forth up and down in the degassing tank, and the cooperation of the first extrusion plate and the second extrusion plate fully squeezes out the gas in the water, thereby enabling the degassing tank to fully discharge the gas in the water, further improving the degassing effect of the degassing tank.

The utility model relates to the technical field of degasser heating, in particular to a degasser heating device which comprises a heating device body, a plurality of first grooves are formed in the top end of the heating device body, heat conduction layers are arranged on the bottom end faces of the first grooves, the first grooves are used for installing and placing heat conduction pipes, and the heat conduction pipes are arranged in the first grooves. And the top end of the heating device makes contact with the bottom end of the top cover, multiple second grooves are formed in the bottom end of the top cover, and the multiple second grooves are buckled to the top end face of the heat conduction pipe. The heat conduction pipes are arranged between the heating device and the top cover, the heat conduction pipes can be maintained by disassembling the top cover, the water leakage condition of the heat conduction pipes can be conveniently checked, and meanwhile disassembling and replacing are convenient.

The utility model discloses a fluorescent whitening agent slurry vacuum degassing device of anti -spill, including degassing furnace, and the degassing mechanism includes two first connecting tubes, and the one end of two first connecting tubes is connected with the U type anti -spill pipe of intercommunication, and the other end of two U type anti -spill pipes is connected with the second connecting tube of intercommunication, and the other end of two second connecting tubes is located inside the bottom of degassing furnace, and the top of degassing furnace is fixed with the conical cover, and the inner wall bottom of conical cover is fixed with the sealing plate, and the top of sealing plate is installed with vacuum pump, and the air inlet end of vacuum pump is connected with the duct of intercommunication, and the other end of duct is located inside the top of degassing furnace. The utility model has formed good sealing effect in the process of degassing, improved the efficiency of degassing, and improved the quality of fluorescent whitening agent slurry, and sealing effect avoided the outside air backwash, maintained the stable vacuum environment in the degassing furnace, reduced the equipment operation failure caused by the pressure fluctuation.

The utility model relates to a generator rotor cooling water treatment system of a thermal power plant, a cooling water outlet of a steam turbine is connected with a rotor cooling water tank, a rotor water return pipe is provided with a degasser for eliminating carbon dioxide entering the cooling water system, and the rotor cooling water tank is connected with a rotor cooling pump through a pipeline. The rotor cooling pump is connected with a rotor cooling water cooler, the rotor cooling water cooler is connected with a filter, the filter is connected with a steam turbine, a water break protection device is arranged between the filter and the steam turbine, a desalted water tank is connected with a rotor cooling water tank, a three-way valve and a pH detector are arranged on a desalted water pipe, and two ports of the three-way valve are located on the desalted water pipe. The other port of the three-way valve is connected with an alkali adding water tank, the alkali adding water tank is provided with an alkali adding pump and an alkali liquor tank, and the alkali adding water tank is connected with a rotor cooling water tank.

The invention discloses an exhaust testing device. The exhaust testing device comprises a circulating system, an inflation metering assembly and an exhaust metering assembly. And the inflation metering assembly and the exhaust metering assembly are communicated with the circulating system. The circulating pipeline comprises a pressure gauge, a flow meter, a regulating valve and a circulating pump which are connected through the circulating pipeline; the device further comprises a vacuum degasser, an expansion tank and a water injection assembly for injecting fluid into the circulating system. The inflating metering assembly comprises a first water accumulating basin filled with water, a first measuring cylinder inversely buckled in the water in the first water accumulating basin, an exhaust pipe and an inflating pump; the exhaust metering assembly comprises a second water accumulation basin filled with water and a second measuring cylinder which is inversely buckled in the water in the second water accumulation basin; the exhaust valve is communicated with the circulating pipeline; an exhaust port of the exhaust valve is communicated with the inner cavity of the second measuring cylinder through an exhaust pipe; and an exhaust port of the vacuum degasser is communicated with the inner cavity of the second measuring cylinder through an exhaust pipe. The device can be used for better testing the exhaust performance of the exhaust valve under different working conditions of the water circulation system.

The utility model discloses a device for preparing synthesis gas through gasification coupling high-temperature thermal reforming, and belongs to the technical field of gasification. The device comprises a gasification raw material feeder, a low-temperature gasification furnace, a high-temperature thermal reforming reactor, a deslagging lock hopper, a steam pocket, a synthesis gas cooler, an ash remover, a washing tower, a gas-liquid separator and a waste liquid collector, the low-temperature gasification furnace comprises a combustion area and a reduction area from bottom to top, and the high-temperature thermal reforming reactor comprises a step-by-step combustion area, a high-temperature reduction area and an ash collecting area from top to bottom; slag is discharged from a slag outlet at the bottom of the high-temperature thermal reforming reactor, and a gas outlet is connected with a synthesis gas cooler; the cooled synthesis gas sequentially passes through an ash remover, a washing tower and a gas-liquid separator for purification treatment; according to the utility model, the high-temperature thermal reforming reactor is adopted to reform and purify the crude gasified gas generated by gasification, tar and methane in the crude gasified gas are converted into CO and H2, and the problems of low energy utilization rate and low synthesis gas quality in the gasification technology are solved.

The invention provides a degassing device and an ink jet recording apparatus. The degassing device removes air dissolved in the liquid in a reduced pressure atmosphere. The degassing device is provided with a liquid storage tank, a decompression device, a circulation flow path, a circulation device and a control device. The liquid storage tank is used for storing liquid. And the pressure reducing device is used for reducing the pressure in the liquid storage tank. And the circulating flow path enables different positions of the liquid storage tank to be communicated. The circulation device circulates the liquid through the circulation flow path. The control device drives the circulation device at least one of the time before the pressure reducing device is driven and the time before the liquid storage tank after pressure reduction is opened to the atmosphere. Therefore, the load of the degasser caused by pressure reduction can be reduced.

The utility model relates to the technical field of degassers, and provides a centrifugal degasser which comprises a degasser cylinder, the degasser cylinder is provided with a degasser cavity, an inlet and an outlet are formed in the degasser cavity, the inlet is located below the liquid level of slurry, the outlet is located above the liquid level of the slurry, an impeller is rotationally arranged in the degasser cavity, and a liquid drainage piece is arranged on the degasser cylinder and provided with a liquid drainage cavity. The liquid discharging cavity is larger than the gas removing cylinder in diameter and provided with a liquid outlet and an exhaust port. According to the technical scheme, the problem that a degasser in the prior art is poor in degassing effect is solved.

A degasser for degassing a mobile phase includes a degasser chamber with a degasser volume for receiving a degassing membrane, a delimiting unit for delimiting a first space of the degasser volume with respect to a second space of the degasser volume while maintaining a fluid connection between the first space and the second space. The first space in an operation in an environment of the degassing membrane includes a higher partial pressure of vapor of the mobile phase than the second space with a lower partial pressure of vapor of the mobile phase. The degasser further includes a suction unit for sucking a gas that passed through the degassing membrane from the second space, and / or an associated gas supply unit for supplying an associated gas in the second space or in a fluid conduit that is connected to the second space.

The invention relates to the technical field of gas logging equipment, discloses an anti-explosion electric degasser for gas logging, and aims to solve the problem that the gas logging operation efficiency is affected due to the fact that a filter element is replaced when the degasser is shut down. The stirring paddle is axially arranged in the horizontal cylinder, and the exhaust port is formed above the vertical cylinder, so that during use, drilling fluid firstly enters the horizontal cylinder, is beaten by the paddle blades in sequence and then is dispersed into fine liquid drops, gas in the drilling fluid escapes upwards, then liquid in the horizontal cylinder enters the vertical cylinder, and the liquid in the vertical cylinder enters the horizontal cylinder. According to the present invention, the stirring paddle and the exhaust port are positioned in different chambers through the actions, such that the amount of the liquid droplets splashing upwards and discharged into the exhaust port is reduced, the time of the complete blocking of the filter element in the filter element separator is prolonged, and the filtration efficiency is improved; therefore, the influence on the gas logging operation efficiency is reduced.

The application discloses a non-stirring type efficient degassing device, which comprises a spiral fluid collecting mechanism located at an upstream end of a process and used for continuously extracting drilling fluid; and an ultrasonic degasser located at a downstream of the process of the spiral fluid collecting mechanism and communicated with the spiral fluid collecting mechanism through a pipeline; a plurality of ultrasonic transducer oscillators are arranged in the ultrasonic degasser; the spiral fluid collecting mechanism extracts the drilling fluid and conveys the drilling fluid into the ultrasonic degasser through the pipeline; the ultrasonic degasser shakes the drilling fluid through vibration of the plurality of ultrasonic transducer oscillators to shake the drilling fluid to separate internal gas; the degassed drilling fluid is extracted into a chromatograph by a sample pump to be analyzed and detected. The device changes traditional stirring type degassing into non-stirring type degassing, realizes mud logging fluid degassing by using the ultrasonic degasser, achieves the design purpose of efficient degassing, and guarantees the real effectiveness of full hydrocarbon components of gas logging.