94 results about "Fluid inclusions" patented technology

The invention relates to a purification method for high-purity quartz with ultra-low metal elements. The purification method for the high-purity quartz with ultra-low metal elements is characterized by comprising the following steps: (1) 96-250 mu m vein quartz sand is selected, the vein quartz sand meets fluid inclusion quantity <100 per mm <2>, and impurity metal element total amount is <100 parts per million; (2) inclusion is removed through roasting-water quenching or ultrasonic wave treatment; (3) a product obtained through treatment in the step (2) is arranged in mixed acid to be purified through chemical oxidation reaction, reaction temperature is 20-100 DEG C, and reaction time is 5-15 hours; (4) a product obtained through treatment in the step (3) performs chelation reaction for 5-15 hours in oxalic acid solution at the temperature of 50-100 DEG C; and (5) after the chelation reaction, quartz is filtered, washed to neutral and dried to obtain the high-purity quartz. According to the high-purity quartz with ultra-low metal elements obtained by the purification method, SiO2 content of the high-purity quartz can reach above 99.995%, the impurity metal element total amount is <30 parts per million, the fluid inclusion is <20 per mm<2>, and the high-purity quartz can meet requirements of some special purposes.

The invention discloses a method for confirming the reservoir forming time of a volcanic rock type oil and gas reservoir. The method comprises the following steps: firstly, selecting an experimental sample; secondly, simulating a thermal history of the volcanic rock reservoir; thirdly, confirming a reservoir forming stage of the volcanic rock type oil and gas reservoir; fourthly, confirming the reservoir forming time of the volcanic rock type oil and gas reservoir. The method indirectly obtains the reservoir forming time of the volcanic rock type oil and gas reservoir on the basis of research on the thermal evolution history of the volcanic rock reservoir and a fluid inclusion forming stage, eliminates influence of volcanic rock diachronism, burial history, thermal history, reservoir forming history and the like on confirmation of the reservoir forming time of the volcanic rock type oil and gas reservoir, improves the accuracy for confirming the reservoir forming time of the volcanic rock type oil and gas reservoir, and provides more accurate guidance on exploration and development of volcanic rock type oil and gas.

The invention belongs to the field of geochemistry, and in particular, relates to a system for artificial synthesis of an oil-gas containing fluid inclusion. The system for artificial synthesis of the oil-gas containing fluid inclusion comprises a reaction kettle, a temperature control system, a pressure control system, a vacuum-pumping system, an online sampling system, a rack system, a safe rupture disk and an electric heating furnace; the reaction kettle is fixed in the electric heating furnace, and the reaction kettle and the electric heating furnace are both supported by the rack system; the temperature control system and the pressure control system are respectively used for temperature control and pressure control of the system; the online sampling system is used for online sampling analysis. The system can perform a test for artificial synthesis of the fluid inclusion under conditions of common temperatures and pressures of an oil-gas containing basin reservoir, simulates a formation mechanism of the fluid inclusion in reservoir minerals and interaction between reservoir rock and a fluid, can allows a crude oil or natural gas component to be added into a test system, performs test simulation of influence of oil gas injection on formation of the reservoir fluid inclusion, and achieves real-time online sampling analysis.

The invention provides a gas chromatography system for determining gas components in fluid inclusion, which adopts a modified gas chromatograph to extract trace gas from a small amount of samples (0.1g) in fluid inclusion for analysis with high sensitivity and good reproducibility. The content of H2, O2, N2, CO, CH4, CO2, H2O, C2H2, C2H6, and C3H8 can be measured through one sample injection and one bursting, and the analysis test efficiency is remarkably improved. Moreover, compared with conventional method, the invention is characterized in that not only the relative mol concentration of each component but also the absolute content can be determined, wherein the actual water amount can be combined with the liquid components in fluid inclusion to achieve the actual concentration of each ion in fluid inclusion, thus it is possible to provide more precise and direct data for the research on fluid inclusion.

The present invention provides a industrial performance distinguishing method for natural quartz, which aims at using the natural quartz to produce high purity quartz glass. The present invention provides a set of distinguishing methods and guidelines to fill up the blank of the natural quartz industrial performance distinguishing currently. The type of ore or the impure minerals in quartz, the size of quartz mineral grain and the type, the size and the abundance of the fluid inclusion in the quartz are distinguished through a microscope and an electron probe. The homogenization temperature and the shock temperature of the fluid inclusion are determined by a microscope heating table. The gas components in the inclusion are determined through a laser Raman microprobe. The water content in the quartz is determined by using a diffuse reflectance FTOR spectroscopy. The formation cause of a quartz mineral deposit is ensured by combing the methods and the geological characteristics of the mineral deposit. A quartz quality data base is established. A natural quartz industrial performance distinguishing guideline system is established by comparing the element characteristics of the quartz mineral. The potential value of quartz resource is fully exploited through discriminating the raw materials of the high quality quartz glass.

The invention relates to a method for determining the vapor-liquid ratio of a fluid inclusion based on laser Raman Mapping. Three-dimensional component test analysis is realized through a laser Raman automatic sample bench (three directions comprising X-axis, Y-axis and Z-axis). The method comprises the following steps: obtaining the distribution of the vapor phase and liquid phase components of the fluid inclusion on a plurality of two-dimensional planes through the Mapping test analysis of the X-Y axis and the X-Z axis; obtaining three-dimensional metric parameters comprising the length, width and height of the inclusion according to the above constructed three-dimensional vapor phase and liquid phase component distribution; and utilizing an ellipsoid volume calculating formula to obtain the accurate volume ratio of the vapor part to the liquid part (the vapor-liquid ratio) of single fluid inclusion at a temperature (usually room temperature). The method is suitable for hydrocarbon inclusions, is also suitable for brine inclusions, and provides a new technological means for researching the temperature and pressure calculation of paleo-fluids.

The invention belongs to the technical field of uranium ores, and particularly relates to a geological method for counting large-scale charging time of ore-bearing strata oil gas of sandstone-type uranium ore. The geological method comprises the steps of S1, preparing related geological document; S2, acquiring an ore-bearing strata sandstone sample of the sandstone-type uranium ore, including an ore-rich sample and an ore-free sample; S3, fabricating fluid inclusion from the ore-rich sample, selecting apatite from the ore-free sample, and observing the fluid inclusion; S4, completing temperature measurement operation of the fluid inclusion on the basis of fluid inclusion observation, and performing comprehensive analysis on uniform temperature data to obtain a uniform temperature peak; S5,inverting thermal evolution history of ore-bearing strata of the sandstone-type uranium ore by apatite fission track method; and S6, projecting the uniform temperature peak obtained in the step S3 onto the thermal evolution history of the ore-bearing strata obtained in the step S4, and indirectly counting large-scale charging time and issue of the ore-bearing strata oil gas of the sandstone-typeuranium ore.

A microscopic fluorescence spectrum measurement device of fluid inclusions includes a computer with the data processing, a fluorescence spectrophotometer which comprises an optical fiber base, a microscope objective and an inverted fluorescence microscope which is provided with a carrier at the interior, the invention is characterized in that the device further includes a high-precision adjusting bracket which is arranged on the inverted fluorescence microscope, a reflective microscope objective is arranged on the high-precision adjusting bracket, the reflective microscope objective is connected with an A port of a Y-shaped optical fiber cable, other two ports of a B port and a C port of the optical fiber cable are respectively connected with an optical fiber excitating port B and an optical fiber transmitting port C of the optical fiber base in the fluorescence spectrophotometer, and the reflective microscope objective is coaxial with the microscope objective of the inverted fluorescence microscope. The invention integrates the microscopic positioning, the single color excitation and the fluorescence collection into a whole, the structure is simple and reasonable, the regulation is easy, the cost is low, the device can measure the fluorescence spectra of single hydrocarbon inclusion and the groups, as well as the other inclusions including the biological materials.

The invention relates to a manufacturing method of an oriented fluid inclusion thin sheet of a wild outcrop sand rock sample. The manufacturing method comprises the following steps: collecting an outcrop sand rock sample in an oriented manner and carrying out original occurrence recovery; calibrating a cutting direction; carrying out first-time cutting according to the calibrated cutting directionto obtain a sheet production sample block; carrying out coarse grinding, fine grinding, refined grinding and polishing on a horizontal plane of the sheet production sample block; sticking a glass slide; calibrating a number and a direction of the sheet production sample block on the stuck glass slide; carrying out second-time sample cutting on the sheet production sample block; carrying out coarse grinding, fine grinding, refined grinding and polishing on a cutting surface of a thin sheet obtained by the second-time sample cutting; carrying out quality inspection on the oriented fluid inclusion thin sheet. According to the manufacturing method provided by the invention, the original direction property of the outcrop sand rock sample can be effectively kept and direction information of thesand rock sample is accurately represented in the manufactured fluid inclusion thin sheet; premised guarantees are provided for carrying out accurate analysis on the aspects including petrographicalcharacteristics, distribution directions, development periods and the like of a fluid inclusion surface.

The invention discloses a cone beam CT (Computed Tomography) local scanning imagery for fluid in pipelines, and relates to a nondestructive examination technology for pipelines in use. The method comprises the following steps: mounting a radiation source and an area-array detector on a round track coiled on a pipe wall before scanning, while scanning, making the radiation source and the area-array detector perform circular motion along the track around the pipeline during scanning, simultaneously, by flowing of fluid, obtaining equivalent spiral cone beam projection data of inclusions-containing fluid, and then, obtaining a three-dimensional image of the fluid inclusions in the to-be-detected pipeline by means of combining a spiral cone beam FDK (Feldkamp) image reconstruction algorithm with a local filter. Mechanical motion of such scanning mode is simple and easy to implement, and can easily adapt to field conditions of pipeline field in-use detection; local reconstruction image of the inclusions-containing fluid in the pipeline has good quality and high resolution.

The invention relates to a tunnel lining structure with a combined action of high-strength pre-pressing anchors rod and fluid inclusions. The tunnel lining structure comprises the fluid inclusions, the high-strength pre-pressing anchor rods and reinforced concrete linings which are in contact with tunnel surrounding rock, wherein the fluid inclusions are fixed around the tunnel surrounding rock with the high-strength pre-pressing anchor rods and the reinforced concrete linings, a pressure relief valve is arranged at one side of each fluid inclusion, and the fluid inclusions are provided with connection interfaces linked with other inclusions; the sides, facing the tunnel, of the liquid inclusions are provided with the reinforced concrete lininsg, the reinforced concrete linings are fixed by the high-strength pre-pressing anchor rods, and every two adjacent liquid inclusions are detachably assembled and connected through connecting interfaces arranged at the side edges. The tunnel lining structure can solve the problem that in the prior art, the possibility of local deformation of the tunnel is greatly reduced while the requirements of tunnel lining are met, and it is guaranteed that a support structure can not to be deformed due to local large surrounding rock stress.

The present invention relates to a sample chamber for laser ablation analysis of fluid inclusions, comprising a sample cell having a sample cell through-hole extending along the vertical direction and a sample channel extending through the sample cell in a direction transverse to the vertical direction and communicating with the sample cell through-hole. A transparent element is arranged on each of the top and bottom sides of the sample cell through-hole, and is fixed to the sample cell through a fixing ring. The sample chamber further comprises a base comprising a viewing hole and a receiving portion for receiving the sample cell, wherein the viewing hole is coaxially aligned with the sample cell through-hole when the sample cell is placed within the receiving portion. According to the sample chamber of the present invention, it is only necessary to change the sample cell during replacement of the sample chamber, which leads to a convenient operation. At the same time, light from the microscope can pass through the viewing hole, so that the effect of observation is improved.

The invention belongs to the field of geochemistry, and particularly relates to a method for identifying a rebalancing fluid enclosure in a reservoir of a sedimentary basin. The method is simple and clear, and can identify the rebalancing fluid enclosure by only adopting the microphysiography and the homogenization temperature of the fluid enclosure. The rebalancing fluid enclosure can be effectively identified in the sedimentary basin subjected to polyphase geological events, so that mis-explanations that the paleogeotemperature is recovered by adopting data of the rebalancing fluid enclosure and the like are avoided; furthermore, diagenesis and reservoir forming periods can be judged, and the activity intensity of a geological event can be effectively instructed.

The invention discloses a vacuum grinder for extracting a fluid inclusion gas. The vacuum grinder includes a pedestal (1), which is internally provided with a cavity (2), which has an opening (11) atthe top (10) of the pedestal (1); a sample pot (3) configured to be placed in the cavity (2) via the opening (11) and accommodate a sample (4); a motor (5) detachably mounted at the top (10) of the pedestal (1) and sealing the opening (11) to seal the sample (4) in the cavity (2); and a grinding hammerhead (6) connected to an output shaft of the motor (5) via a coupling (7).

The invention provides a research method for stratum paleofluid salinity evolution history. The research method includes steps of S1, judging stratum rock cement sequences and screening samples with developed multi-period cement and abundant stored fluid inclusion; S2, selecting the fluid inclusion with different sequences and carrying out homogenous temperature and salinity tests to obtain a plurality of homogenous temperature and salinity data; S3, combining the homogenous temperature and salinity data with burial history, determining corresponding relations between earth temperature evolution and geological time and drawing salinity trend lines varied with the geological time according to the obtained homogenous temperature and salinity data of the multiple pieces of fluid inclusion soas to obtain the paleofluid salinity evolution history. The research method for the paleofluid salinity evolution history has the advantages that the research method is easy to implement, the continuous paleofluid salinity evolution history can be established by the aid of the research method, and relational chart plates with double horizontal coordinates which are the temperatures and the geological time and vertical coordinates which are salinity are proposed and are used for depicting the paleofluid salinity evolution history.

The invention discloses a paleopressure calculation method for a tight reservoir based on the thermal dynamics of fluid inclusions. Based on the tight reservoir, the internal relationship between theuniform temperature of the fluid inclusions and the bubble filling degree of the tight reservoir is used fully, a calculation model based on the mole fraction and the bubble filling degree of oil inclusions in the tight reservoir is constructed, then the paleopressure of the tight reservoir is calculated, and a technical support for improving the geological evaluation of the tight reservoir is provided while improving the calculation precision of the paleopressure of the tight reservoir. The paleopressure calculation method for the tight reservoir based on the thermal dynamics of the fluid inclusions, for the first time in China, provides a method to calculate the paleopressure of the tight reservoir based on the uniform temperature and the bubble filling degree of the fluid inclusions, and a fluid inclusion method can be used effectively to improve the calculation precision of the paleopressure in the tight reservoir.

The invention provides a manufacturing method of a fluid inclusion slice. The method comprises the following steps carried out in sequence: (1) cutting out a plane on a rock sample, and polishing the plane; (2) injecting glue into the rock sample obtained in the step (1) by adopting glue; (3) solidifying the glue injected into the rock sample obtained in the step (2); and (4) adhering the polished plane of the rock sample obtained in the step (3) to a glass sheet by adopting an adhesive, and performing slicing and polishing to obtain the fluid inclusion slice, wherein the glue used in the step (2) is indissoluble in acid, alkali and / or an organic solvent, and the adhesive used in the step (4) is easily dissoluble in acid, alkali and / or an organic solvent. By virtue of the manufacturing method provided by the invention, a more perfect fluid inclusion slice can be manufactured; and the manufacturing method serves for obtaining a first-class fluid inclusion slice analysis result, and then serves for geological researches of study of mineral deposits, petroleum geology and the like.

The invention discloses a process method for removing fluid inclusions in quartz sand by combining microwaves with acid leaching. According to the process method disclosed by the invention, microwave power is the most critical factor which affects the removal effect of the fluid inclusions in quartz sand, and a scientific and accurate treatment process is put forward. The process comprises the steps of: performing irradiation treatment on high-purity quartz sand by microwaves, wherein the microwave power is 1800-2400w; and then performing acid leaching by using monomer acid with a mass fraction of 5-15% for 6-24 hours, wherein the monomer acid is hydrochloric acid, nitric acid or hydrofluoric acid. A plenty of experiments verify that the light transmissivity of quartz sand materials treated by the process is stabilized to be not less than 90.0%, and reaches up to 99.2%, and the purity of SiO2 reaches 99.988%. The process method disclosed by the invention is simple to operate, stable and reliable and suitable for industrial production.

The invention discloses a method for determining lithium isotopes in fluid inclusion water. The method comprises the following steps: 1) determining lithium isotopes in quartz: performing surface purification, extraction of a fluid inclusion and ultrasonic extraction on a quartz sample, then dissolving, and performing chemical purification to perform the determination of the lithium isotopes; and 2) figuring out the lithium isotopes in the fluid inclusion water according to empirical formulas: a linear equation of delta 7LiQuartz-fluid=-23.197*(1000 / T)+38.057 and a linear correlation coefficient R2=0.9583. By adopting the method disclosed by the invention, the lithium isotopes in the fluid inclusion can be conveniently and quickly determined, thereby having important significance for researching a mineral deposit.

The invention discloses a metallogenic prediction method, relates to the field of mineral resource exploration, and aims at solving a problem of low accuracy of metallogenic prediction. The method comprises the steps that S10, complete hole sampling is performed in a mining area to be explored from the surface to the underground according to the preset distance so that a set of samples are obtained; S20, the three-dimensional space position of each sample in one set of the samples is acquired; S30, main metallogenic elements of all the samples and fluid inclusion parameters of each sample are respectively confirmed; S40, interpolation is performed on the main metallogenic elements by adopting a three-dimensional distance inverse weighting method according to the three-dimensional space position of each sample so that a three-dimensional space distribution model of the main metallogenic elements is obtained; S50, interpolation is performed on the fluid inclusion parameters by adopting the three-dimensional distance inverse weighting method according to the three-dimensional space position of each sample so that a three-dimensional space distribution model of the fluid inclusion parameters is obtained; S60, and the mineral exploration direction of the main metallogenic elements is confirmed according to the three-dimensional space distribution models of the main metallogenic elements and the fluid inclusion parameters.

The invention provides a method for determining charging time of natural gas. The method includes the following steps that a rock core sample and a rock debris sample of a well are collected and analyzed, and a double-face polished fluid inclusion thin piece is made; the occurrence and capturing relative sequence of a pure gas phase natural gas inclusion are determined; the pure gas phase naturalgas inclusion is divided to have different capturing time periods; the homogenization temperature of the pure gas phase natural gas inclusion and the homogenization temperature of a saline water inclusion in the same period are determined; natural gas components of the pure gas phase natural gas inclusion are determined, and relative contents of all the natural gas components are quantified; a pressure-temperature phase diagram is calculated; the capturing pressure of the pure gas phase natural gas inclusion is determined; the capturing depth of the pure gas phase natural gas inclusion is calculated; geological data at the position of the well is obtained and analyzed, and a single-well bury history diagram is reconstructed; the single-well bury history diagram is used for obtaining the bury history curve of the depth of the fluid inclusion thin piece; the capturing depths of the pure gas phase natural gas inclusion at different time periods are projected onto the bury history curve, so that the charging time of natural gas at different time periods is obtained.

The invention discloses a novel method for testing fluid inclusion in minerals, and relates to the technical field of the testing of fluid inclusion in rock minerals and the microbeam analysis of rock minerals. The method comprises the following steps: knocking off a small fragment from a tested sample; enabling the sample to be clamped on a sample support; enabling the sample and the sample support to be installed on a vacuum transmission device; placing liquid nitrogen in a paper cup till a half of the paper cup is filled; enabling the paper cup with the liquid nitrogen to be placed in a quick freezing workbench; enabling the vacuum transmission device provided with the sample and the sample support to be connected with the quick freezing workbench, and carrying out vacuum pumping till liquid nitrogen is shaped like mud; enabling the vacuum transmission device after freezing and vacuum pumping to be connected with a pre-freezing processing room, and carrying out the vacuum pumping of the pre-freezing processing room; cutting the sample in the pre-freezing processing room through a cutting knife on the device; and enabling the coated sample to be conveyed onto a cold bench, matched with the sample, in an SEM testing room. The method enlarges the application range of scanning electron microscopes and freezing transmission equipment, is good in application prospect, and is of great significance to the research of fluid inclusion.

The invention belongs to the field of solid mineral exploration, and particularly discloses a method for estimating ore-forming depths of granite type hydrothermal uranium ore deposits on the basis ofmicroscopic temperature measurement on different types of fluid inclusion. The method particularly includes steps of 1, acquiring and treating samples from uranium ore deposits; 2, observing, treating and testing fluid inclusion sheets obtained at the step 1 so as to obtain morphological parameters and key phase change parameters of the different types of fluid inclusion; 3, computing parametersof the fluid inclusion according to the parameters, obtained at the step 2, of the fluid inclusion so as to obtain corresponding homogenous pressures of the inclusion; 4, estimating the ore-forming depths according to the homogenous pressures, obtained at the step 3, of the fluid inclusion. The method has the advantages that the ore-forming depths of the granite type hydrothermal uranium ore deposits can be scientifically estimated by the aid of the method, and ore prospecting spaces can be expanded for deep uranium resources of the granite type hydrothermal uranium ore deposits.

The invention discloses a fault-sealing ability evaluation method based on fluid inclusion planes and a system thereof. The method comprises the following steps: sampling and analysis are carried out on the target strata fluid inclusion planes to judge direction of crustal stress applied on the fault planes; according to the direction of crustal stress, positive pressure of the target strata fault planes is calculated; and based on the positive pressure of the fault planes and the target strata fluid pressure, fault-sealing ability is judged. Fault-sealing ability of marine multistage superimposed basin's carbonatite can be effectively evaluated, and the insufficiency of present fault-sealing ability of marine multistage superimposed basin's carbonatite is compensated.

The invention discloses an analysis device and an analysis method for quantitatively analyzing fluid inclusion water. The analysis device comprises a quantitative analysis part used for drawing a standard working curve, wherein the quantitative analysis part comprises a collection pipe and a glass guide pipe; a connector I is arranged at one end of the glass guide pipe; a connector II is arranged at the other end of the glass guide pipe; the collection pipe is connected with the connector I of the glass guide pipe; the connector II is connected with an SV3 gas control valve through a communication pipeline; the glass guide pipe communicates with a valve connector; and the valve connector matches with the valve. The analysis method comprises the steps of freezing and vacuumizing the glass guide pipe added with high-purity water by using liquid nitrogen; when the vacuum degree meets the requirement, replacing liquid nitrogen with dry ice, and performing freezing and vacuumizing; and moving away the dry ice, and testing and drawing the standard working curve by using a quadrupole mass spectrometer. The liquid nitrogen freezing is adopted for preventing volatilization of a micro-sample and impurities are discharged by using the dry ice. A new method for accurately performing quantitative analysis on the fluid inclusion water is provided and has an important significance for researching components, sources and evolution of fluids and deep interpretation of ore genesis in geological evolution at different stages.

The present invention relates to a sample chamber for laser ablation analysis of fluid inclusions, comprising a sample cell having a sample cell through-hole extending along the vertical direction and a sample channel extending through the sample cell in a direction transverse to the vertical direction and communicating with the sample cell through-hole. A transparent element is arranged on each of the top and bottom sides of the sample cell through-hole, and is fixed to the sample cell through a fixing ring. The sample chamber further comprises a base comprising a viewing hole and a receiving portion for receiving the sample cell, wherein the viewing hole is coaxially aligned with the sample cell through-hole when the sample cell is placed within the receiving portion. According to the sample chamber of the present invention, it is only necessary to change the sample cell during replacement of the sample chamber, which leads to a convenient operation. At the same time, light from the microscope can pass through the viewing hole, so that the effect of observation is improved.

The invention discloses a method for establishing a diagenetic paleo-fluid temperature correction map of marine carbonate rock reservoirs. The method comprises: S1, selecting a plurality of carbonaterock samples according to core observation and analysis and processing the plurality of selected samples to obtain thin sheet and powder samples; S2, carrying out mineralogy analysis, fluid inclusionobservation, and cathodoluminescence observation on the thin sheet samples to obtain an analysis result, carrying out fluid inclusion homogenization temperature measurement on the thin sheet samples obtained in the S1, and carrying out carbon-oxygen coupled isotope determination on the powder samples; S3, processing and analyzing the homogenization temperature value and the carbon-oxygen coupled isotope temperature value by combining the analysis result in the S2; and S4, establishing a correction map of the fluid inclusion homogenization temperature and verifying the rationality and accuracyof the map. Therefore, the fluid inclusion homogenization temperature can be correct, thereby obtaining an accurate diagenetic paleo-fluid temperature.

The invention belongs to the technical field of sandstone type uranium ore, and particularly relates to a spatial positioning method for oil and gas dissipation and sandstone type uranium ore body in a multi-energy basin, which utilizes an improved fluid inclusion indirect dating method to accurately determine the time of oil gas dissipation to a uranium ore-bearing layer. The metallogenic age of the sandstone type uranium ore is determined through a total rock or uranium ore U-Pb isotope isochrone dating method, a time sequence of oil and gas dissipation and uranium metallogenic is established, and positioning marks of the uranium ore body under different conditions are determined by combining geological response research of the oil and gas dissipation process. According to the method, direct and indirect marks of oil and gas dissipation, large-scale oil and gas dissipation time and uranium mineralization age are researched, and the influence of large-scale oil and gas dissipation on formation and positioning of the sandstone type uranium ore is found out by combining the effect of oil and gas on uranium precipitation and enrichment; and the prospecting efficiency and precision of the sandstone type uranium ore in the oil-uranium symbiotic multi-energy basin are improved.

The invention relates to a self-activation flotation method for a component of a fluid inclusion of a copper sulfide ore. Specific to the 'rich sulfur' state formed by surface relaxation of the copper sulfide ore, by utilizing the characteristics that copper ions released by the fluid inclusion of the copper sulfide ore have ultrahigh adsorption activity on a 'rich sulfur' surface, the copper ions of the component of the fluid inclusion are attached to a new surface of the copper sulfide ore so as to form a 'rich copper' surface, so that the adsorption activity of the surface of the copper sulfide ore to xanthate anions is increased, the self-activation flotation for the surface of the copper sulfide ore is realized, the flotation recovery of the copper sulfide ore is increased, the dosage of collecting agents is reduced and the technical and economic targets are increased.