537 results about "Oil content" patented technology

The present invention belongs to the field of shale oil exploration. Provided are an evaluation method for the content of movable oil in shale, and a device and a storage medium. The evaluation method comprises the following steps: on the basis of pyrolysis test data of a sample to be tested at different aging times, determining a first recovery coefficient; on the basis of pyrolysis test data of said sample in different sample crushing environments, determining a second recovery coefficient; on the basis of pyrolysis test data of said sample at different crushing particle sizes, determining a third recovery coefficient; on the basis of pyrolysis test data of said sample at different pyrolysis temperatures, determining a fourth recovery coefficient; determining the product of the first recovery coefficient, the second recovery coefficient, the third recovery coefficient and the fourth recovery coefficient to be a light hydrocarbon recovery coefficient; and on the basis of the light hydrocarbon recovery coefficient, evaluating the content of movable oil in shale. The method provided in the present invention offers guidance for quantitatively evaluating the oil content of shale, and a finally determined free oil content result has a relatively small difference from the actual situation.

The invention provides a shale oil reservoir oil content evaluation method, which comprises the following steps: coring a shale sample, and carrying out anhydrous wire cutting processing to obtain a plunger sample and a crushed sample in an original state; respectively carrying out two-dimensional T1-T2 nuclear magnetic resonance testing on the plunger samples in the original state and the oil-water recovery state; according to the T1-T2 nuclear magnetic resonance spectrum, oil signal amplitudes of the plunger sample in an original state and an oil-water recovery state are identified, and a light hydrocarbon recovery coefficient is determined; the crushed sample is subjected to conventional pyrolysis and multi-temperature-order pyrolysis, conventional pyrolysis parameters and multi-temperature-order pyrolysis parameters are obtained, a first equation is established, and the first equation represents the relation between the original state oil content and the conventional pyrolysis parameters; according to the light hydrocarbon recovery coefficient and the first equation, a second equation is established, and the second equation represents the relation between the oil content in the oil-water recovery state and the conventional pyrolysis parameters; and evaluating the oil content of the shale oil reservoir in the oil-water recovery state according to the second equation and the measured conventional pyrolysis parameters.

The invention relates to the technical field of sewage treatment, and discloses an advanced treatment method and device for ship oily wastewater, and the method comprises the following steps: carrying out preliminary filtration on the ship oily wastewater to remove suspended solids and particulate matters so as to obtain first oily wastewater; the first oily wastewater is subjected to coalescence separation treatment, floating oil, dispersed oil and a small part of emulsified oil in the wastewater are removed, the oil content in the wastewater is reduced to 500 ppm or below, and second oily wastewater is obtained; the second oily wastewater is subjected to cross-flow ultrafiltration deep treatment, emulsified oil and dissolved oil are intercepted, produced water and concentrated water are obtained, and the concentrated water serves as third oily wastewater; the third oil-containing wastewater flows back to the first oil-containing wastewater, and discharged water is obtained after the produced water is detected to be qualified. The invention provides a primary filtration, coalescence separation and ultrafiltration three-stage circulating filtration method, emulsified oil and dissolved oil can be efficiently separated and removed, oil resource recovery is realized, and membrane pollution is reduced.

The invention discloses oily sludge-based foam light soil and a preparation method thereof, and belongs to the technical field of building materials, the oily sludge-based foam light soil comprises, by mass, 60%-80% of oily sludge pyrolysis powder, 5%-15% of cement, 10%-20% of water and 5%-10% of foam; in the preparation process, firstly, the oily sludge is subjected to pyrolysis treatment to prepare oily sludge pyrolysis powder with the oil content smaller than or equal to 2%, then the oily sludge pyrolysis powder is mixed with cement and water to form light soil slurry, the light soil slurry and foam liquid are mixed to prepare a light soil mixture, the flow value of the light soil mixture is measured, and then pouring, curing and curing are conducted to form the foam light soil. The preparation method of the oily sludge-based foam light soil is simple, the oily sludge-based foam light soil as a roadbed material meets the requirements of highway roadbed design specifications, the use amount of cement, fly ash and other raw materials in common foam light soil is reduced, pollution and harm of oily sludge pyrolysis powder to the environment can be solved, and the oily sludge-based foam light soil has good market prospects and application value.

The invention belongs to the technical field of shale oil development and research, and discloses a shale oil mobility evaluation method based on a two-dimensional nuclear magnetic resonance experiment, which comprises the following steps: dividing an oil-containing shale sample harvested by a closed coring well into three parts which are respectively marked as a sample 1, a sample 2 and a sample 3; carrying out a TOC determination experiment on the sample 1 to obtain the TOC content of the sample; carrying out a step-by-step pyrolysis experiment on the sample 2 to obtain the contents of the sample S1-1 and the sample S2-2; calculating to obtain a shale oil mobility evaluation factor which is marked as FMO; carrying out a two-dimensional nuclear magnetic resonance experiment on the sample 3 before and after centrifugation to obtain the movable oil content of the sample before and after centrifugation, calculating to obtain the percentage of two-nuclear magnetic resonance movable oil, and recording the percentage as MO2D-NMR; and shale oil mobility evaluation is realized through analysis of the relationship between MO2D-NMR and FMO. According to the method provided by the invention, nondestructive testing of the sample can be realized in the two-dimensional nuclear magnetic resonance experiment process, the loss of light hydrocarbon can be reduced to the greatest extent, and the mobility evaluation precision of shale oil is effectively improved.

The invention discloses a sampling device and method for detecting the oil content of oil sand ore based on hyperspectrum, and relates to the technical field of oil sand ore sampling. Comprising a mounting base, a drilling barrel and a drill bit, the mounting base, the drilling barrel and the drill bit are sequentially in threaded connection in the direction from top to bottom, the mounting base is rotationally connected with a connecting piece located in the drilling barrel, and the lower side of the connecting piece is in threaded connection with a middle barrel; a guide assembly for reducing the moving resistance of the oil sand sample is arranged on the connecting piece; the guide assembly comprises two inner half cylinders which are symmetrically distributed and a sample containing cylinder. An oil sand sample entering the space between the two inner half cylinders is gradually wrapped by the sample containing cylinder, and the oil sand sample is isolated from the inner half cylinders, so that the oil sand sample does not make direct contact with the inner half cylinders, friction resistance borne by the oil sand sample in the process of moving into the inner half cylinders is reduced, interference to the porosity of the oil sand sample and the rock structure is reduced, and the oil sand sample detection accuracy is improved. And the detection error of the oil content is reduced.

The invention discloses a method and system for predicting the change of the movable oil content before and after fracturing, and belongs to the technical field of oilfield development, the method comprises the following steps: firstly, collecting geological data and production data of a target rock, and constructing a standard data set; then establishing and training a movable oil content prediction model based on machine learning; then determining the movable oil content before fracturing by analyzing a sample of a target rock block, obtaining stratum parameters and fracturing well parameters of a target block, and inputting the model to predict the movable oil content after fracturing; and finally, the content change of the target rock is evaluated based on the movable oil content before and after fracturing so as to guide optimization of an oil reservoir development strategy.

The utility model discloses an improved oily water treatment device, and belongs to the technical field of sewage treatment. The device comprises a sewage storage tank, a gravity oil separation tank, an air floatation tank, a biochemical tank, a heating storage tank, a waste oil tank, a dosing tank and a dehydration system. According to the device, primary oil-water separation is performed from a pretreatment stage through a heating system of the heating storage tank, so that the operation load of subsequent units is reduced; a waste oil tank is added, treated oily sewage with still high oil content is pumped into the waste oil tank, floating oil at the upper end of the waste oil tank is collected through a floating oil device, oily sewage at the bottom repeatedly passes through an oil separation floating oil device to be retreated, and the water content of the waste oil is reduced until effluent reaches the standard of a biochemical system. Finally, the purpose of improving the oil-water separation effect of the gravity oil-separation air floatation equipment is achieved. The device performs repeated treatment according to the oil content index of the effluent of the oil separation floating device, reduces the chemical consumption and the power consumption, improves the separation effect, and has positive influences on the environment and the economy.

The present invention relates to a method for treating wastewater with high phosphorus content, high turbidity and high oil content, comprising S1, using a sand settling tank to remove sand and gravel in the wastewater; S2, using an oil removal and decolorization tank to remove pigments and oil in the wastewater; S3, passing the wastewater into a reaction tank, adding a suitable weight of lime to the reaction tank according to the phosphorus content, and then adding a suitable weight of flocculant to the reaction tank, the flocculant and the suspended matter in the wastewater undergo flocculation reaction to generate large particles of solid; S4, using an inclined tube sedimentation tank to remove large particles of solid; S5, using a phosphorus adsorption filler layer in a deep filtration tank to adsorb the residual phosphorus in the wastewater, and a filter material layer to filter out small particles of solid in the wastewater; S6, after the water quality test is qualified, the wastewater is discharged. The present invention can remove pigments and oil in the wastewater, reduce pollutants, and improve the quality of effluent water by setting an oil removal and decolorization tank. The deep filtration tank can further remove micro suspended matter and pollutants such as phosphorus in the wastewater to improve the quality of effluent water.

The invention relates to the technical field of oily solid treatment, and discloses an oily sludge and sand resourceful treatment method and system.The oily sludge and sand resourceful treatment method comprises the following steps that oil sludge is subjected to component analysis, and the oil content, the heavy metal type and sandy soil particle size distribution data are obtained; based on data of component analysis, adopting a microwave field to carry out dynamic pretreatment on the oil sludge, adjusting microwave parameters through coupling electromagnetic field distribution and a heat conduction model, and separating oil and sand; the pretreated sandy soil is subjected to flora combination optimization biodegradation, the flora proportion is screened based on a strain degradation efficiency matrix, and residual pollutants are degraded; and according to the biodegraded residue components, a recycling path is matched, and a regenerated material is formed. The invention provides an oil sludge and sand full-process treatment method based on microwave dynamic regulation and control, flora combination optimization and a multi-objective decision model. Integrated cooperative control of oil-sand efficient separation, multi-pollutant deep degradation and residue accurate recycling is achieved.

According to the rapid detection device for the water content of the oil and the calibration method thereof, the water content of the oil is rapidly detected through a microwave method, and the characteristic speed is high; self-calibration is carried out on the microwave method by utilizing a high-precision spectrum method, so that the water content can be measured at high precision through the spectrum absorption effect of gas after the water of the measured liquid is fully evaporated; the two methods are combined, a microwave method test result is calibrated according to an infrared spectroscopy test result, a formation correction coefficient of the microwave method result capable of being rapidly measured is formed, and the rapid detection method is formed by giving play to the advantage of rapid response of the microwave method.

The oil separation structure comprises an oil separation cavity, a driving unit, a connecting unit and a separation unit, the driving unit, the connecting unit and the separation unit are arranged in the oil separation cavity, the driving unit is arranged on the connecting unit and can drive the connecting unit to rotate, and the separation unit is arranged on the connecting unit and can rotate along with the connecting unit; the oil separation cavity is provided with an air inlet, an oil-gas mixture enables the driving unit to rotate through the air inlet, then the separation unit is driven to rotate through the connecting unit, and the separation unit can act on the oil-gas mixture when rotating. The high-speed active rotation of the separation unit provides continuous and strong centrifugal force, so that the centrifugal effect required by oil-gas separation is remarkably enhanced and stabilized, the problems of insufficient centrifugal force and limited separation efficiency caused by the fact that a traditional oil separation pipe only depends on the rotation speed of fluid are solved, the oil-gas separation efficiency is greatly improved, and the service life of the oil-gas separator is prolonged. The low oil content of exhaust gas of the compressor is ensured, and the normal operation performance of an air conditioning system is maintained.

The invention provides a construction method of a horizontal well reservoir interpretation model, and relates to the technical field of shale oil-gas field development, and the construction method comprises the following steps: obtaining a target oil testing result and a target parameter corresponding to a fractured section of a target horizontal well; performing correlation analysis on the target parameters according to the target oil testing result, and determining sensitive parameters sensitive to oil-water characteristics in the target parameters; constructing a target relation model according to the sensitive parameters; and establishing a comprehensive interpretation model for interpreting the reservoir type of the horizontal well. According to the method, the target relation model for calculating the lithology index, the oiliness index and the pore structure index is established, and the comprehensive interpretation model for interpreting the reservoir type of the horizontal well through the three indexes is established, so that the characteristics of multiple aspects such as lithology, oiliness and pore structure of the reservoir can be more comprehensively reflected; therefore, the precision of reservoir type interpretation is improved, and accurate data support can be provided for horizontal well fracturing staged clustering.

The invention relates to an oil well declining rate determination method, system, equipment and medium, and the method comprises the steps: obtaining production data of a target oil well for analysis, and drawing a profile map; and determining a decline section of the target oil well based on the profile map, and calculating the yield decline rate of the target oil well by using production data of the decline section. When the decline section is determined, the decline rate of the oil production and the decline rate of the oil content are comprehensively considered, the decline rate of the yield of the target oil well is finally determined in combination with the decline section yield change trend, the actual decline trend of the oil content can be accurately reflected, the virtual high of the assessed reserves is avoided, and the SEC conservative principle is strictly met. Therefore, the method can be widely applied to the field of oil-gas field reserve assessment.

The invention discloses a water pollution treatment device and method for a water supply pump station, and the device comprises an oil scraping plate which is arranged below an oil skimming rod, keeps synchronous rotation with the oil skimming rod, and is used for pushing scum and sump oil on the surface of sewage in a sedimentation tank; the oil skimming part is arranged in the sedimentation tank, rubs the oil scraping plate in the rotating state and is used for collecting scum and dirty oil on the surface of the sewage and discharging the scum and the dirty oil out of the sedimentation tank; the vibration assembly is arranged in the oil scraping plate and is used for driving a plurality of vibration rods to vibrate so as to crush and gather emulsified oil particles in the sewage; the gathering assembly is arranged above the oil scraping plate and is used for generating air flow, blowing the surface of the sewage by utilizing wind power, and driving the scum and the sump oil to gather towards the center direction of the oil scraping plate. According to the invention, the technology spanning from only oil slick treatment to emulsified oil treatment is realized, the oil content in the effluent is obviously reduced, and the efficiency of the subsequent treatment unit and the final water supply quality are improved.

The invention relates to an oil-containing sludge hydro-thermal treatment energy efficient utilization system and an operation method thereof, and the system comprises a preheating fluidization part which is used for preheating a fluidization material; the steam heating part is used for heating the materials and participating in the hydrothermal reaction; the steam heating part is used for supplying high-temperature steam to the hydrothermal reaction part so as to carry out material heating and hydrothermal reaction, and flash evaporation is carried out after the hydrothermal reaction; the condensing medium flows into the steam heating part after being heated; the gas from the preheating fluidization part is cooled and condensed to form low-temperature flash condensate; the flash tank is used for mixing to form a flash destabilized mixture; and the centrifugal separation part is used for centrifugally separating the flash destabilized mixture from the flash tank. The heat load and the cooling load of system operation are reduced, and energy conservation and consumption reduction are achieved; and the low-temperature flash evaporation condensate is mixed with the materials in the flash evaporation tank, so that the oil content of the residual solid phase after centrifugal separation is further reduced, the volatilization of light petroleum components in the condensate is reduced, and the safety and pollution risks are reduced.

The invention relates to the technical field of unconventional oil-gas exploration, in particular to a high-clay shale oil in-situ accumulation dynamics mechanism and mode evaluation method. The method comprises the following steps: collecting fluid pressure, temperature data, displacement pressure, oiliness, brittleness index, hydrostatic pressure, vitrinite reflectivity and density value of a shale sample at each depth position point of an exploratory well of each exploration point; calculating abnormal sensitivity; further acquiring ground temperature evaluation credibility; obtaining a self-adaptive fitting weight; acquiring the actual fluid pressure of the exploratory well of each survey point at each depth; acquiring the pressure coefficient of the shale sample at each depth position point of the exploratory well of each survey point; obtaining a self-sealing reservoir forming mode and a retention reservoir forming mode of shale oil; based on the vitrinite reflectivity, the oiliness, the brittleness index and the pressure coefficient, a shale oil enrichment area evaluation comprehensive index is constructed, and the in-situ flow of the high-clay shale is evaluated. According to the method, the accuracy of in-situ self-sealing reservoir formation, retention reservoir formation and dynamic mechanism evaluation of the high-clay shale is improved.

The utility model belongs to the technical field of marine equipment, and discloses a methanol fuel supply cabin which comprises a main cabin body, a backflow buffer tank and a backflow buffer container, the main cabin body is communicated with a supply pipe, the supply pipe is communicated with marine methanol supply equipment, a first switch valve is arranged on the supply pipe, the backflow buffer tank is arranged in the main cabin body, and the backflow buffer container is arranged in the main cabin body. The reflux buffer tank is communicated with a reflux pipe, the reflux pipe is communicated with marine methanol supply equipment, a plurality of overflowing holes are formed in the reflux buffer tank, and the reflux buffer container is arranged in the main cabin body, is positioned below the reflux buffer tank and is used for receiving a mixed solution of methanol and oil flowing out of the reflux buffer tank; and an overflow port communicated with the interior of the main cabin body is formed above the backflow buffer container. According to the methanol fuel supply cabin, residual methanol fuel liquid in the marine methanol supply equipment can be recycled after a ship is stopped or before the ship is restarted, the recycling process is smooth, splashing is effectively prevented, and oil in the recycled methanol fuel liquid can be effectively separated.

The invention discloses a polyester fiber online tension and oil content synchronous detector, and relates to the technical field of polyester fiber processing, the polyester fiber online tension and oil content synchronous detector comprises a support, an output shaft, a transmission shaft, an adjusting shaft and two parallel shafts are arranged on the upper side of the support, an oil content detector is arranged between the two parallel shafts, and a press roller is arranged on the upper side of the transmission shaft; the upper surface of the adjusting shaft is fixedly provided with a tension detector, the support is internally and fixedly provided with a control box, and the control box is in communication connection with the tension detector and the oil content detector. Detection time is shortened, and efficiency and accuracy are improved; through a servo motor and an adjusting structure, detection of fibers of different specifications is adapted, and the universality is enhanced; through cooperation of the limiting disc, the pressing roller and the transmission part, stable fiber conveying is guaranteed, the pressure is optimized through the spring, and accurate and reliable detection is guaranteed.

The invention discloses a mature rapeseed oil content prediction method and system based on a deep learning model, and the method comprises the following steps: deleting a decoding layer in an image segmentation network U-Net, and replacing a convolution module in a U-Net coding layer with a residual connection module, the residual connection module is used for performing a series of convolution and nonlinear transformation on the mature rapeseed samples to obtain depth feature representation of the samples; the input of the residual connection module and the depth feature representation are added through jump connection to serve as the output of the residual connection module; a time sequence feature extraction module and an average pooling module are introduced into the U-Net, the time sequence feature extraction module is used for extracting time sequence features in mature-period rapeseed samples, the detail features and the time sequence features are spliced and then input into the average pooling module and a maximum pooling module, and local features and global features in the samples are further extracted; the oil content of the rapeseed sample in the mature period is output through the full connection layer.

The invention relates to the technical field of oil content measurement, in particular to a method for measuring the oil content of oil-based drilling cuttings and application of the method. The method comprises the following steps: querying a dynamic extraction curve database according to sample lithology and a processing method, and determining an optimal extraction time point by calculating a concentration change rate; multi-point sampling is carried out in the extraction process, the environment temperature and pressure are measured at the same time, an environment influence model comprising a temperature influence sub-model and a pressure influence sub-model is established, and an environment correction factor is obtained; performing infrared spectrum measurement on the extract sample, performing data correction, and calculating an average value and a standard deviation to remove an abnormal value; and finally, calculating the final oil content by adopting a piecewise linear equation aiming at different concentration ranges. By considering the lithologic characteristics, the environmental influence and the segmented linear relation, the measurement precision and reliability are remarkably improved.

The invention belongs to the technical field of oil-gas exploration and development, and provides a deep learning quantitative characterization method and system for the oiliness of a CT scanning oil layer. The method comprises the following steps: determining CT scanning parameters through an oil layer digital intelligent model to obtain an oil layer three-dimensional grayscale image, and comparing the oil layer three-dimensional grayscale image with an electron microscope image to establish a standardized three-dimensional digital model; establishing a deep learning standard model by using a convolutional neural network on the basis, and extracting parameters such as oil content and oil saturation; a judgment standard is determined according to sample experiments and analysis, evaluation standards and digital three-dimensional models of different types of oil layers are constructed, and then dominant target layer sections are screened out. The system comprises a data acquisition module, a model construction module, a parameter extraction module and an evaluation decision module and is used for realizing the method. According to the method, the problem of inaccurate existing measurement is solved, the authenticity and the accuracy of quantitative prediction of the oiliness of the oil layer are improved, the petroleum exploration and development efficiency is improved, and the cost is reduced.

The utility model relates to a horizontal fairing and a horizontal compressor, the fairing comprises a fairing body, the bottom of the fairing body extends outwards to form a bottom edge, one end of the bottom edge far away from the fairing body is bent towards one side of the top of the fairing body to form a side turnup, and the side turnup is bent towards the other side of the top of the fairing body. The end, away from the bottom edge, of the side turnup is bent towards the side away from the cover body to form a top turnup, and the angle theta between the top turnup and the central axis of the cover body is larger than or equal to 70 degrees and smaller than or equal to 135 degrees. Compared with the prior art, the oil outlet quantity and the oil content of a system of the horizontal compressor are reduced, so that the cold force and the energy efficiency of the compressor are improved.

The invention provides a shale oil mass and mobility evaluation method and device, and belongs to the technical field of oil exploitation and geological and mining exploration and development. The method comprises the following steps: acquiring the oil content and the porosity of a rock sample, and calculating the oil saturation of the rock sample according to the oil content and the porosity; calculating a first shale oil mobility evaluation parameter according to the oil content of the rock sample; calculating a second shale oil mobility evaluation parameter according to the oil saturation of the rock sample; evaluating the mobility of the shale oil based on the first shale oil mobility evaluation parameter and the second shale oil mobility evaluation parameter; wherein the oil content comprises a first oil content, a second oil content and a third oil content, the first oil content is obtained by the first rock sample based on a low-field nuclear magnetic resonance test, the second oil content is obtained by the second rock sample based on the low-field nuclear magnetic resonance test, and the third oil content is obtained by the second rock sample based on solvent extraction. According to the embodiment of the invention, the mobility evaluation result of the shale oil can more accord with objective conditions.

The invention relates to the field of oil field oil sludge treatment equipment, in particular to oil field oil sludge sand-water three-phase separation equipment, which comprises a pretreatment tank body, a rotary stirring shaft rotatably mounted in the tank body, a bottom bracket and a top bracket fixed on the shaft, and a plurality of stirring pipe sleeves with dosing holes arranged between the brackets; a chemical adding control system is further arranged and connected with the stirring shaft, the support and the stirring pipe sleeve, and the chemical adding position, the chemical adding speed and the hardening and tempering temperature can be cooperatively regulated and controlled through a normalization algorithm according to real-time data such as the oil sludge liquid level and the oil content; according to the invention, uniform diffusion and precise effect of liquid medicine are realized, demulsification and flocculation efficiency is maximized, consumption of the liquid medicine is obviously reduced, residual liquid medicine in a pipeline can be cleaned, long-term stable operation of equipment is guaranteed, a good foundation is laid for subsequent three-phase separation, and the overall treatment effect is improved.

The invention discloses a complex-medium-resistant multi-parameter cooperative control method and system for a gel-nano composite foam scrubbing agent, and relates to the technical field of gas field foam drainage gas recovery, and the method comprises the steps: building a complex medium parameter correlation model, and analyzing a coupling rule and an interaction weight of four parameters of mineralization degree, temperature, gas condensate content and methanol content; constructing a multi-parameter response test matrix, setting a plurality of parameter combinations, and repeating the experiment; wellbore parameters are collected in real time, and whether cooperative regulation is triggered or not is judged through a control system; aiming at the mineralization degree and temperature synergetic overrun or condensate oil and methanol synergetic overrun, respectively starting corresponding adjusting modules to carry out synergetic regulation and control; the liquid carrying efficiency is tested through dynamic simulation, and the regulation and control effectiveness is judged according to the foam comprehensive index FCI lifting amplitude and the test deviation; the system comprises a parameter acquisition module, a data transmission module, a control module and a plurality of adjustment modules, and real-time monitoring and dynamic coordinated regulation of parameters are realized. The stability and liquid carrying efficiency of the foam scrubbing agent in a complex medium are effectively improved, the foam scrubbing agent adapts to the severe environment of a western gas field, and stable production of a gas well is guaranteed.

The invention discloses a shale oil content prediction method, device and equipment and a medium, and relates to the technical field of shale oil exploration and development. A high-quality model training sample data set is constructed by integrating shale oil content data actually measured by an oil field and associated logging data of the shale oil content data. And based on the data set, performing model training by adopting a long-short-term memory neural network enhanced based on an attention mechanism, constructing a high-precision shale oil content prediction model, and further performing oil content prediction by utilizing the trained shale oil content prediction model. Petroleum logging data and a deep learning technology are combined, accurate calculation of the oil content of the shale reservoir in the stratum in-situ state is achieved, and the reliability of a prediction result is remarkably improved. Compared with a traditional method, the method has the advantages that the analysis period is greatly shortened, the test cost is reduced, meanwhile, the method has excellent generalization ability, the oil content prediction requirements of different types of shale oil reservoirs can be met, and efficient and accurate technical support is provided for shale oil exploration and development.

The invention relates to the technical field of oil-gas exploration, in particular to a method for measuring the oil content of an oil-based mud polluted rock core (rock debris). The method comprises the following steps: oil-based mud fluorescence quantification, sample pretreatment, ultrasonic oscillation extraction, extraction liquid fluorescence analysis, wellhead oil solvent fluorescence quantification and oil content calculation. The method comprises the following steps: collecting oil-based mud and wellhead oil on an exploration site, treating the oil-based mud and the wellhead oil with pesticide residue-grade dichloromethane, and determining respective fluorescence fingerprint spectrograms and characteristic peaks through three-dimensional fluorescence detection; the method comprises the following steps: grinding a rock core (rock debris) sample to 60-80 meshes, carrying out ultrasonic extraction to obtain an extract, detecting a spectrogram, identifying and deducting an oil-based mud pollution peak, and calculating the oil content by combining the correlation between the fluorescence intensity and concentration of wellhead oil. The method can effectively distinguish the oil-based mud from the oil content of the sample, realizes accurate detection of the oil content of the polluted sample, makes up for insufficient core data, is suitable for evaluation of conventional, unconventional, deep and ultra-deep oil and gas reservoirs, and provides reliable support for oil and gas exploration and the like.

The invention belongs to the technical field of oil-gas field development, and discloses a shale specific surface experiment method which is characterized by comprising the following steps: selecting a shale sample, and carrying out a specific surface experiment; opening a vacuum pump, vacuumizing the reaction tube, and heating the shale particle sample at 60 DEG C for at least 120 minutes; setting the heating temperature of the shale particle sample to be 200 DEG C, and analyzing and detecting the components and content of the light oil changed into steam through a gas chromatograph; the heating temperature is set to be 350 DEG C, constant-temperature heating is conducted, and the components and the content of the light and medium oil which is changed into steam are detected; heating at the constant temperature of 450 DEG C, and detecting the components and content of the heavy oil which is changed into steam; the total oil content of the shale particle sample is calculated, and the content of adsorbed oil in the shale particle sample and the content of free oil in the shale particle sample are obtained through calculation. According to the method, more accurate adsorbed oil and free oil content data can be provided for shale oil reserve calculation, and accurate evaluation on the shale oil reservoir is facilitated.

The present disclosure relates to a measuring method and device for trace and ultra-trace oil content. The measuring device of the present disclosure includes a cryogenic enriching device, an extracting device and an infrared spectrometer; The cryogenic enriching device includes a Dewar container and a U-shaped pipe; The extracting device includes an extractant container, an input pipe, an outlet pipe and an extraction liquid quantitative pipe; A mass flowmeter is further disposed on the U-shaped pipe, the oil content in the gas is calculated according to the measured total mass of the gas and the oil concentration of the extraction liquid measured by the infrared spectrometer. The present disclosure further provides a measuring method, which converts the measurement of oil content in gas into the measurement of oil concentration in liquid extractant through effective extraction by liquid nitrogen cold trap enrichment mode, and adopts infrared spectrophotometry to accurately measure.