CN119534417A - Online determination device and method for sulfur isotopes - Google Patents
Online determination device and method for sulfur isotopes Download PDFInfo
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Abstract
本申请公开了一种硫同位素的在线测定装置及方法。其中，该装置包括流体包裹体定位模块、流体包裹体成分检测模块和同位素检测模块；其中，流体包裹体定位模块，用于确定目标岩样中至少一个候选流体包裹体的位置参数；流体包裹体成分检测模块，用于根据各候选流体包裹体的位置参数，依次对各候选流体包裹体进行成分检测，将包含硫元素的候选流体包裹体确定为目标流体包裹体；同位素检测模块，用于根据目标流体包裹体的位置参数，对目标流体包裹体中的流体进行收集，并对流体进行同位素检测，确定目标流体包裹体中的硫同位素。本技术方案，实现了原位在线流体包裹体硫同位素分析，提高了硫同位素在线测定的效率和准确性。
The present application discloses an online determination device and method for sulfur isotopes. The device includes a fluid inclusion positioning module, a fluid inclusion component detection module and an isotope detection module; the fluid inclusion positioning module is used to determine the position parameters of at least one candidate fluid inclusion in the target rock sample; the fluid inclusion component detection module is used to perform component detection on each candidate fluid inclusion in turn according to the position parameters of each candidate fluid inclusion, and determine the candidate fluid inclusion containing sulfur as the target fluid inclusion; the isotope detection module is used to collect the fluid in the target fluid inclusion according to the position parameters of the target fluid inclusion, and perform isotope detection on the fluid to determine the sulfur isotope in the target fluid inclusion. This technical solution realizes the in-situ online sulfur isotope analysis of fluid inclusions, and improves the efficiency and accuracy of online determination of sulfur isotopes.
Description
Technical Field
The application relates to the technical field of oil and gas reservoir research and oil and gas geochemistry, in particular to an on-line measurement device and method for sulfur isotopes.
Background
Deep oil and gas resource exploration and development is an important component for developing earth deep exploration. At present, deep ultra-deep layer has become a main matrix for the important discovery of oil gas in China, and accelerating the exploration and development of deep ultra-deep layer oil gas has become a necessary choice for guaranteeing the national energy safety. However, deep oil and gas exploration faces the dilemma and the difficult problems of high reservoir temperature, high pressure, complex ground stress, strong inorganic-organic interaction and the like, and further causes great risk of deep oil and gas exploration.
At present, sulfur isotope tests are carried out through samples of natural gas whole gas in a gas reservoir, so that the characteristics of sulfur isotopes under the current gas reservoir condition are obtained, the evolution process of the natural gas reservoir in the natural gas formation process and the estimated source of the natural gas cannot be reflected, the sources of deep petroleum and natural gas exploration cannot be accurately locked, the migration and favorable aggregation areas of oil gas cannot be easily tracked, and the implementation of potential of deep resources and the evaluation of oil gas exploration prospects are limited.
Therefore, how to provide a technical scheme capable of rapidly and accurately carrying out online determination on sulfur isotopes is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The application provides an online measurement device and method for sulfur isotopes, which realize in-situ online analysis of sulfur isotopes in fluid inclusion by measuring sulfur elements in the fluid inclusion and then measuring the sulfur isotopes, can rapidly and accurately measure the sulfur isotopes online, and improves the efficiency and accuracy of online measurement of the sulfur isotopes.
According to one aspect of the present application, there is provided an on-line measurement apparatus for sulfur isotopes, the apparatus comprising a fluid inclusion positioning module, a fluid inclusion composition detection module and an isotope detection module, wherein,
The fluid inclusion positioning module is used for determining the position parameter of at least one candidate fluid inclusion in the target rock sample;
The fluid inclusion component detection module is used for sequentially carrying out component detection on each candidate fluid inclusion according to the position parameters of each candidate fluid inclusion, and determining the candidate fluid inclusion containing the sulfur element as a target fluid inclusion;
The isotope detection module is used for collecting the fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion, detecting the fluid by isotopes and determining the sulfur isotopes in the target fluid inclusion.
According to another aspect of the present application, there is provided an on-line determination method of a sulfur isotope, the method comprising determining a location parameter of at least one candidate fluid inclusion in a target rock sample based on a fluid inclusion positioning module;
Sequentially carrying out component detection on each candidate fluid inclusion based on a fluid inclusion component detection module according to the position parameters of each candidate fluid inclusion, and determining the candidate fluid inclusion containing the sulfur element as a target fluid inclusion;
And collecting the fluid in the target fluid inclusion based on the isotope detection module according to the position parameter of the target fluid inclusion, and detecting the isotope of the fluid to determine the sulfur isotope in the target fluid inclusion.
The application provides an on-line measurement device and method for sulfur isotopes. The device comprises a fluid inclusion positioning module, a fluid inclusion component detection module and an isotope detection module, wherein the fluid inclusion positioning module is used for determining the position parameter of at least one candidate fluid inclusion in a target rock sample, the fluid inclusion component detection module is used for sequentially detecting components of each candidate fluid inclusion according to the position parameter of each candidate fluid inclusion and determining the candidate fluid inclusion containing sulfur as a target fluid inclusion, and the isotope detection module is used for collecting fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion, detecting isotopes of the fluid and determining sulfur isotopes in the target fluid inclusion. According to the technical scheme, the sulfur isotope determination is carried out after the sulfur element component of the fluid inclusion is detected, so that the in-situ on-line analysis of the sulfur isotope of the fluid inclusion is realized, and the on-line determination efficiency and accuracy of the sulfur isotope are improved.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an on-line measurement device for sulfur isotopes according to an embodiment of the present application;
Fig. 2 is a schematic diagram of a raman spectrum according to a first embodiment of the present application;
FIG. 3 is a schematic structural diagram of an on-line measurement device for sulfur isotopes according to a second embodiment of the present application;
FIG. 4 is a schematic structural diagram of another on-line measurement device for sulfur isotopes according to a second embodiment of the present application;
FIG. 5 is a schematic structural diagram of an on-line measurement device for sulfur isotopes according to a second embodiment of the present application;
Fig. 6 is a flowchart of an online measurement method of sulfur isotopes according to a third embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," "target," "candidate," and the like in the description and claims of the present application and in the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
Fig. 1 is a schematic structural diagram of an online measurement device for sulfur isotopes, which is provided in an embodiment of the present application, and the embodiment is applicable to a scenario of online measurement of sulfur isotopes in a fluid inclusion.
As shown in fig. 1, the on-line measurement device for sulfur isotopes provided in the embodiment of the present invention includes a fluid inclusion positioning module 110, a fluid inclusion component detection module 120 and an isotope detection module 130, wherein:
a fluid inclusion localization module 110 for determining a location parameter of at least one candidate fluid inclusion in the target rock sample;
A fluid inclusion component detection module 120, configured to sequentially perform component detection on each candidate fluid inclusion according to the position parameter of each candidate fluid inclusion, and determine the candidate fluid inclusion containing the sulfur element as a target fluid inclusion;
and the isotope detection module 130 is configured to collect a fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion, and perform isotope detection on the fluid to determine a sulfur isotope in the target fluid inclusion.
Wherein the fluid inclusion is a mineral medium which is trapped during the growth of the mineral due to defects of the crystal and exists in the mineral and is in a closed state, and is a sample of the rock-forming mineral fluid or melt. The cause and source of the natural gas reservoir where the target rock sample is located can be analyzed by analyzing the sulfur isotopes of the fluid inclusion in the target rock sample.
Specifically, the method can be used for processing the target rock sample to prepare a rock slice, observing the rock slice through an optical microscope and other instruments with amplifying functions to determine observed candidate fluid inclusions and position parameters of the candidate fluid inclusions, or collecting an image obtained after amplifying the rock slice, inputting the collected image into a pre-trained fluid inclusion screening model to determine at least one candidate fluid inclusion and the position parameters thereof in the target rock sample.
Optionally, the fluid inclusion positioning module 110 includes a closed sample stage, a vacuum pump and an image acquisition device, where the closed sample stage is used to fix the target rock sample, the vacuum pump is used to vacuumize the closed sample stage, and the image acquisition device is used to acquire an image of the target rock sample, obtain a target image, and determine at least one candidate fluid inclusion in the target rock sample.
In the embodiment of the invention, firstly, a rock slice made of a target rock sample can be placed in a preset position in a closed sample stage, the rock slice is fixed through a clamp holder in the closed sample stage, secondly, a lens of an image acquisition device such as a microscope extends in from above the closed sample stage, the closed sample stage is placed on an automatic platform, secondly, the closed sample stage is vacuumized through a vacuum pump connected with the closed sample stage, and finally, a target image of the rock slice is acquired through the lens of the image acquisition device extending into the closed sample stage, and candidate fluid inclusion existing in the rock slice is determined according to the target image and position parameters are recorded.
After locating the candidate fluid inclusions in the target rock sample, the sulfur element in each candidate fluid inclusion may be subjected to component detection to perform primary screening on the candidate fluid inclusions, and the candidate fluid inclusion containing the sulfur element is determined as the target fluid inclusion, so as to improve the efficiency of sulfur isotope determination in the fluid inclusion.
Specifically, electron probe microscopic analysis, neutron induced X-ray emission analysis, synchrotron X-ray fluorescence analysis, microscopic infrared spectroscopic analysis, ultraviolet fluorescence microscopic analysis, raman spectroscopic analysis and the like can be adopted to detect the components of the sulfur element in the candidate fluid inclusion.
The microscopic laser Raman spectrometer is specifically used for sequentially carrying out component detection on each candidate fluid inclusion according to the position parameters of each candidate fluid inclusion, and determining the candidate fluid inclusion containing the sulfur element as a target fluid inclusion according to the corresponding relation between Raman displacement and signal intensity in the detection result.
The laser Raman spectrometer can sequentially control excitation light to irradiate the candidate fluid inclusion according to the position parameters of each candidate fluid inclusion, most photons can elastically collide with molecules in the candidate fluid inclusion and scatter at the same frequency, and photons of about 10 -10 to 10 -6 elastically collide with the molecules in the candidate fluid inclusion to change the photon frequency. Further, a raman spectrum diagram can be generated according to the signal intensity and raman shift of raman scattering, and the raman shift corresponding to the signal intensity peak in the raman spectrum diagram is analyzed to determine whether the candidate fluid inclusion contains sulfur.
Fig. 2 is a schematic diagram of a raman spectrum according to a first embodiment of the present application. As shown in fig. 2, in the raman spectrum of a candidate fluid inclusion, peaks at raman shifts of 149.75, 218.22 and 472.5, respectively, were observed, and therefore, it was determined that the candidate fluid inclusion contained elemental sulfur.
After the target fluid enclosure containing elemental sulfur is determined, the sulfur isotopes in the target fluid enclosure can be determined.
Wherein, the sulfur element has 4 stable isotopes in total of 32S, 33S, 34S and 36S in the natural world, and the relative abundance is 95.02%, 0.75%, 4.21% and 0.02% respectively. The distribution of sulfur isotopes among different substances on earth varies due to chemical or biological effects, etc. Typically, the sulfur isotope composition is expressed in terms of thousandth deviations of the sample 34S/32S relative to the International Standard (CDT) 34S/32S.
Specifically, the sulfur isotopes in the target fluid inclusion can be measured by a mass spectrometer, an isotope ratio mass spectrometer, a nuclear magnetic resonance spectrometer, a radiation counter, or the like. In the embodiment of the invention, the target fluid inclusion can be placed in a plasma ionization coupling mass spectrometer, the spot beam of the laser is controlled to change from small to large so as to gradually open the target fluid inclusion, the fluid in the target fluid inclusion is obtained, and the sulfur isotope signal in the target fluid inclusion is determined.
The embodiment of the invention provides an online measurement device for sulfur isotopes, which comprises a fluid inclusion positioning module, a fluid inclusion component detection module and an isotope detection module, wherein the fluid inclusion positioning module is used for determining the position parameter of at least one candidate fluid inclusion in a target rock sample, the fluid inclusion component detection module is used for sequentially carrying out component detection on each candidate fluid inclusion according to the position parameter of each candidate fluid inclusion and determining the candidate fluid inclusion containing sulfur as a target fluid inclusion, and the isotope detection module is used for collecting fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion and carrying out isotope detection on the fluid to determine sulfur isotopes in the target fluid inclusion. According to the technical scheme, the sulfur isotope determination is carried out after the sulfur element component of the fluid inclusion is detected, so that the in-situ on-line analysis of the sulfur isotope of the fluid inclusion is realized, and the on-line determination efficiency and accuracy of the sulfur isotope are improved.
Example two
Fig. 3 is a schematic structural diagram of an on-line measurement device for sulfur isotopes according to a second embodiment of the present application. As shown in fig. 3, the apparatus includes a fluid inclusion positioning module 210, a fluid inclusion composition detection module 220, and an isotope detection module including a sampling unit 230, an isotope determination unit 240, wherein:
the fluid inclusion positioning module 210 is configured to determine a location parameter of at least one candidate fluid inclusion in the target rock sample;
The fluid inclusion component detection module 220 is configured to sequentially perform component detection on each candidate fluid inclusion according to the position parameter of each candidate fluid inclusion, and determine the candidate fluid inclusion containing the sulfur element as a target fluid inclusion;
The sampling unit 230 is configured to control sampling to sample the fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion, so as to obtain a target sample;
The isotope determination unit 240 is configured to perform isotope detection on the target sample according to the components of the target sample, and determine a sulfur isotope in the target fluid inclusion.
According to the on-line measuring device for the sulfur isotopes, provided by the embodiment of the invention, the fluid in the target fluid inclusion is sampled through the sampling unit and then sent to the isotope measuring unit for sulfur isotope measurement, so that the on-line measuring efficiency and accuracy of the sulfur isotopes are improved.
Fig. 4 is a schematic structural diagram of another on-line measurement device for sulfur isotopes according to a second embodiment of the present application, in which 11 is a closed sample stage, 12 is a sample holder, 13 is a switch valve, 14 is a vacuum pump, 15 is a microscope, 16 is a laser raman spectrometer, 17 is an ionization mass spectrometer, and 18 is a sampler. The flow of sulfur isotope measurement using the on-line sulfur isotope measurement apparatus shown in fig. 4 is as follows:
a first step of loading a rock laminate into a closed sample stage 11 at a predetermined position and fixing it with a sample holder 12;
Step two, opening a switch valve 13, and vacuumizing the closed sample table 11 by using a vacuum pump 14;
Thirdly, observing the rock slices in the closed sample stage 11 by utilizing a microscope 15, positioning candidate fluid inclusions, and recording the position parameters of each candidate fluid inclusion;
Fourth, according to the position parameters of each candidate fluid inclusion, detecting each candidate fluid inclusion in turn by using a laser Raman spectrometer 16, and determining the candidate fluid inclusion containing sulfur as a target fluid inclusion;
Fifthly, penetrating the target fluid inclusion by using a sampler 18 with negative pressure according to the position parameters of the target fluid inclusion, and sampling the fluid in the target fluid inclusion to obtain a target sample;
Sixth, the target sample is sent to the ionization mass spectrometer 17, and isotope measurement is performed on the target sample to determine the sulfur isotope in the target fluid inclusion.
On the basis of the embodiment, the isotope determination unit comprises a first sample cabin, a hydrogen cabin, a second sample cabin, a carrier gas cabin and an isotope detector, wherein the first sample cabin is used for storing the target sample if the component of the target sample is hydrogen sulfide, the hydrogen cabin is used for storing hydrogen and controlling the hydrogen to be injected into the second sample cabin if the component of the target sample is elemental sulfur, the second sample cabin is used for storing the target sample and reacting with the hydrogen to generate the target sample in the form of hydrogen sulfide, the carrier gas cabin is used for storing the carrier gas and controlling the carrier gas to blow the target sample into the isotope detector, and the isotope detector is used for detecting the target sample and determining sulfur isotopes in the target fluid inclusion.
Fig. 5 is a schematic structural diagram of an on-line measurement device for sulfur isotopes according to a second embodiment of the present application. As shown in fig. 5, 21 is a closed sample stage, 22 is a sample holder, 23 is a switch valve, 24 is a vacuum pump, 25 is a microscope, 26 is a laser raman spectrometer, 31 is a sampler, 32 is a first sample compartment, 33 is a second sample compartment, 34 is a temperature control device, 35 is a hydrogen compartment, 36 is an isotope detector, and 37 is a gas carrying compartment. The flow of sulfur isotope measurement using the on-line sulfur isotope measurement apparatus shown in fig. 5 is as follows:
a first step of loading a rock laminate into a closed sample stage 21 at a predetermined position and fixing it with a sample holder 22;
step two, opening a switch valve 23, and vacuumizing the closed sample stage 21 by using a vacuum pump 24;
Thirdly, observing the rock slices in the closed sample stage 21 by utilizing a microscope 25, positioning candidate fluid inclusions, and recording the position parameters of each candidate fluid inclusion;
Fourth, according to the position parameters of each candidate fluid inclusion, detecting each candidate fluid inclusion in turn by using a laser Raman spectrometer 26, and determining the candidate fluid inclusion containing sulfur as a target fluid inclusion;
Fifthly, according to the position parameters of the target fluid inclusion, penetrating the target fluid inclusion by using a sampler 31 with negative pressure to sample the fluid in the target fluid inclusion to obtain a target sample;
sixth, according to the detection result of the laser raman spectrometer 26 on the components of each candidate fluid inclusion, determining whether the components of the target fluid inclusion are hydrogen sulfide or elemental sulfur;
if the component of the target sample is hydrogen sulfide, the target sample is stored in the first sample cabin 32, and a valve connected with the carrier gas cabin 37 is opened to enable the carrier gas to blow the target sample into the isotope detector 36, the isotope detector 36 detects the target sample and determines the sulfur isotope in the inclusion of the target fluid;
If the component of the target sample is elemental sulfur, the target sample is stored in the second sample cabin 33, a valve connected with the hydrogen cabin 35 is opened to enable hydrogen to be injected into the second sample cabin, the temperature control device 34 is controlled to heat the second sample cabin 33 to a preset temperature to enable the hydrogen and the elemental sulfur in the second sample cabin 33 to chemically react to generate the target sample in the form of hydrogen sulfide, the valve connected with the carrier gas cabin 37 is opened to enable the carrier gas to blow the target sample into the isotope detector 36, and the isotope detector 36 detects the target sample to determine the sulfur isotope in the inclusion of the target fluid.
Example III
Fig. 6 is a flowchart of an online measurement method of sulfur isotopes according to a third embodiment of the present application, which is optimized based on the above-described embodiment. As shown in fig. 6, the method of this embodiment specifically includes the following steps:
s310, determining a position parameter of at least one candidate fluid inclusion in the target rock sample based on the fluid inclusion positioning module;
S320, based on a fluid inclusion component detection module, sequentially carrying out component detection on each candidate fluid inclusion according to the position parameter of each candidate fluid inclusion, and determining the candidate fluid inclusion containing the sulfur element as a target fluid inclusion;
S330, collecting the fluid in the target fluid inclusion based on the isotope detection module according to the position parameter of the target fluid inclusion, and detecting the isotope of the fluid to determine the sulfur isotope in the target fluid inclusion.
The embodiment of the invention provides an online measurement method of sulfur isotopes, which is characterized by determining the position parameter of at least one candidate fluid inclusion in a target rock sample based on a fluid inclusion positioning module, sequentially detecting the components of each candidate fluid inclusion according to the position parameter of each candidate fluid inclusion based on a fluid inclusion component detection module, determining the candidate fluid inclusion containing sulfur as the target fluid inclusion, collecting the fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion based on an isotope detection module, detecting the isotope of the fluid, and determining the sulfur isotopes in the target fluid inclusion. According to the technical scheme, the sulfur isotope determination is carried out after the sulfur element component of the fluid inclusion is detected, so that the in-situ on-line analysis of the sulfur isotope of the fluid inclusion is realized, and the on-line determination efficiency and accuracy of the sulfur isotope are improved.
On the basis of the above embodiment, optionally, isotope detection is performed on the target fluid inclusion according to the position parameter of the target fluid inclusion, and the sulfur isotope in the target fluid inclusion is determined, where the method includes:
based on a sampling unit, controlling sampling to sample fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion to obtain a target sample;
And based on an isotope determination unit, performing isotope detection on the target sample according to the components of the target sample, and determining the sulfur isotope in the target fluid inclusion.
Optionally, performing isotope detection on the target sample according to the components of the target sample to determine a sulfur isotope in the target fluid inclusion, including:
If the component of the target sample is hydrogen sulfide, controlling carrier gas to blow the target sample into an isotope detector through a carrier gas cabin, and detecting the isotope of the target sample through the isotope detector to determine the sulfur isotope in the target fluid inclusion;
And if the component of the target sample is elemental sulfur, controlling hydrogen to react with the target sample to generate hydrogen sulfide, controlling carrier gas to blow the target sample into an isotope detector, detecting the target sample by the isotope detector, and determining the sulfur isotope in the target fluid inclusion.
Optionally, determining the location parameter of at least one candidate fluid inclusion in the target rock sample includes:
controlling the target rock sample to be fixed on a closed sample stage, and vacuumizing the closed sample stage through a vacuum pump;
controlling image acquisition equipment in the closed sample stage to acquire an image of the target rock sample to obtain a target image;
determining at least one candidate fluid inclusion in the target rock sample according to the target image;
And determining the position parameters of the candidate fluid inclusions in the target rock sample according to the preset coordinate systems of the candidate fluid inclusions and the closed sample table.
Optionally, after performing isotope detection on the target fluid inclusion according to the position parameter of the target fluid inclusion to determine the sulfur isotope in the target fluid inclusion, the method further includes:
and comparing the ratio of the sulfur isotopes in the target fluid inclusion with the ratio of the sulfur isotopes in the natural gas produced by the hydrocarbon reservoir to which the target rock sample belongs, and determining the hydrocarbon source of the target rock sample.
The on-line measurement method of sulfur isotopes provided by the embodiment of the application can be applied to the on-line measurement device of sulfur isotopes provided by any embodiment of the application, and has corresponding functional modules and beneficial effects of an execution device, and technical details not described in detail in the embodiment can be seen from the description provided by any embodiment of the application.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present application may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present application are achieved, and the present application is not limited herein.
The above embodiments do not limit the scope of the present application. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of the present application.
Claims (10)
1. An on-line measurement device for sulfur isotopes is characterized by comprising a fluid inclusion positioning module, a fluid inclusion component detection module and an isotope detection module, wherein,
The fluid inclusion positioning module is used for determining the position parameter of at least one candidate fluid inclusion in the target rock sample;
The fluid inclusion component detection module is used for sequentially carrying out component detection on each candidate fluid inclusion according to the position parameters of each candidate fluid inclusion, and determining the candidate fluid inclusion containing the sulfur element as a target fluid inclusion;
The isotope detection module is used for collecting the fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion, detecting the fluid by isotopes and determining the sulfur isotopes in the target fluid inclusion.
2. The apparatus of claim 1, wherein the isotope detection module comprises a sampling unit, an isotope determination unit, wherein,
The sampling unit is used for controlling sampling to sample the fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion to obtain a target sample;
the isotope determination unit is used for performing isotope detection on the target sample according to the components of the target sample and determining sulfur isotopes in the target fluid inclusion.
3. The apparatus of claim 2, wherein the isotope determination unit comprises a first sample compartment, a hydrogen compartment, a second sample compartment, a carrier gas compartment, and an isotope detector, wherein,
If the component of the target sample is hydrogen sulfide, the first sample cabin is used for storing the target sample;
If the component of the target sample is elemental sulfur, the hydrogen chamber is used for storing hydrogen and controlling the hydrogen to be injected into the second sample chamber;
The second sample cabin is used for storing the target sample so as to react with the hydrogen to generate a target sample in the form of hydrogen sulfide;
The carrier gas cabin is used for storing carrier gas and controlling the carrier gas to blow the target sample into the isotope detector;
The isotope detector is used for detecting isotopes of the target sample and determining sulfur isotopes in the target fluid inclusion.
4. The apparatus of claim 1, wherein the fluid enclosure positioning module comprises an enclosed sample stage, a vacuum pump, and an image acquisition device, wherein,
The closed sample stage is used for fixing the target rock sample;
the vacuum pump is used for carrying out vacuumizing treatment on the closed sample platform;
The image acquisition equipment is used for acquiring the image of the target rock sample to obtain a target image, and determining at least one candidate fluid inclusion in the target rock sample.
5. The apparatus of claim 1, wherein the fluid inclusion component detection module is a laser raman spectrometer;
the laser Raman spectrometer is specifically configured to sequentially perform component detection on each candidate fluid inclusion according to the position parameter of each candidate fluid inclusion, and determine the candidate fluid inclusion containing the sulfur element as a target fluid inclusion according to the correspondence between the Raman shift and the signal intensity in the detection result.
6. An on-line measurement method of sulfur isotopes, characterized in that the method comprises:
Determining a location parameter of at least one candidate fluid inclusion in the target rock sample based on the fluid inclusion positioning module;
Sequentially carrying out component detection on each candidate fluid inclusion based on a fluid inclusion component detection module according to the position parameters of each candidate fluid inclusion, and determining the candidate fluid inclusion containing the sulfur element as a target fluid inclusion;
And collecting the fluid in the target fluid inclusion based on the isotope detection module according to the position parameter of the target fluid inclusion, and detecting the isotope of the fluid to determine the sulfur isotope in the target fluid inclusion.
7. The method of claim 6, wherein the fluid in the target fluid enclosure is collected and isotopically detected to determine sulfur isotopes in the target fluid enclosure based on the positional parameters of the target fluid enclosure, the method comprising:
based on a sampling unit, controlling sampling to sample fluid in the target fluid inclusion according to the position parameter of the target fluid inclusion to obtain a target sample;
And based on an isotope determination unit, performing isotope detection on the target sample according to the components of the target sample, and determining the sulfur isotope in the target fluid inclusion.
8. The method of claim 7, wherein isotope detection of the target sample based on the composition of the target sample determines a sulfur isotope in the target fluid inclusion, comprising:
If the component of the target sample is hydrogen sulfide, controlling carrier gas to blow the target sample into an isotope detector through a carrier gas cabin, and detecting the isotope of the target sample through the isotope detector to determine the sulfur isotope in the target fluid inclusion;
And if the component of the target sample is elemental sulfur, controlling hydrogen to react with the target sample to generate hydrogen sulfide, controlling carrier gas to blow the target sample into an isotope detector, detecting the target sample by the isotope detector, and determining the sulfur isotope in the target fluid inclusion.
9. The method of claim 6, wherein determining the location parameter of at least one candidate fluid inclusion in the target rock sample comprises:
controlling the target rock sample to be fixed on a closed sample stage, and vacuumizing the closed sample stage through a vacuum pump;
controlling image acquisition equipment in the closed sample stage to acquire an image of the target rock sample to obtain a target image;
determining at least one candidate fluid inclusion in the target rock sample according to the target image;
And determining the position parameters of the candidate fluid inclusions in the target rock sample according to the preset coordinate systems of the candidate fluid inclusions and the closed sample table.
10. The method of claim 6, wherein after isotopically detecting the target fluid inclusion based on the positional parameters of the target fluid inclusion, determining the sulfur isotopes in the target fluid inclusion, the method further comprises:
and comparing the ratio of the sulfur isotopes in the target fluid inclusion with the ratio of the sulfur isotopes in the natural gas produced by the hydrocarbon reservoir to which the target rock sample belongs, and determining the hydrocarbon source of the target rock sample.
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