Method, system and equipment for calibrating hydrocarbon component data of two-channel chromatograph

Abstract

The invention belongs to the field of petroleum and natural gas comprehensive logging, particularly relates to a method, a system and equipment for calibrating hydrocarbon component data of a two-channel chromatographic instrument, and aims to solve the problem of deviation of hydrocarbon component detection values of two channels. The method comprises the following steps: injecting standard gases with different concentrations into a two-channel chromatographic instrument to obtain discrete data of peak areas of hydrocarbon component gases of two channels under different concentrations; fitting discrete data correlation of the peak area of the hydrocarbon component gas of the two channels to obtain a correction coefficient of the two channels; the method comprises the following steps: acquiring a plurality of components of the petroleum logging rapid chromatography, obtaining correction coefficients corresponding to the plurality of components through correlation fitting, and obtaining calibrated hydrocarbon component detection data of two chromatography channels based on the plurality of groups of correction coefficients. According to the invention, a calibration coefficient is established, a two-channel chromatograph hydrocarbon component data calibration method is formed, and the accuracy of two-channel chromatograph hydrocarbon component data detection is ensured.

Description

Background Art

[0002] A chromatograph detects the content of hydrocarbon gases in drilling fluids to obtain formation oil and gas information at different depths, playing an important role in discovering oil and gas shows and interpreting and evaluating logging data. The accuracy of the content of hydrocarbon gases detected by the chromatograph is of utmost importance. Currently, the chromatographs used in the logging industry are all single-channel chromatographs, and only a single channel needs to be calibrated.

[0003] In current chromatograph software development, the peak area method is generally used to calibrate chromatographic component data and back-calculate concentrations. What the chromatograph detects during operation is the peak area of each gas component. Through the calibration curve, the concentration of each gas component is back-calculated. A dual-channel chromatograph is a brand-new design. Its two chromatographic channels are independent of each other, with their own different gas paths and circuits. Under the same conditions, there are deviations in the hydrocarbon component detection values of the two channels.

[0004] Therefore, it is necessary to conduct a comparative analysis of the two channels to form a calibration method for hydrocarbon component data of a dual-channel chromatograph, and calibrate the detection data of the two channels to be consistent under the condition that the standard gas sample has the same concentration. This method is of great significance for improving the consistency and accuracy of the detection data of the dual-channel chromatograph and assisting oilfield exploration and development.

[0005] Based on this, the present invention proposes a calibration method, system, and device for hydrocarbon component data of a dual-channel chromatograph. Summary of the Invention

[0006] To solve the above problems in the prior art, that is, in the prior art, the two chromatographic channels are independent of each other, with their own different gas paths and circuits, and there are deviations in the hydrocarbon component detection values of the two channels under the same conditions, the present invention provides a calibration method, system, and device for hydrocarbon component data of a dual-channel chromatograph.

[0007] On the one hand, the present invention provides a calibration method for hydrocarbon component data of a dual-channel chromatograph, which includes the following steps:

[0008] Step S10: Inject standard gases with different concentrations into the dual-channel chromatograph, and based on the amplification factors of the two channels and the peak areas of the standard gases with different concentrations in the two channels, obtain discrete data of the peak areas of the hydrocarbon component gases in the two channels at different concentrations; wherein, the standard gases include hydrocarbon component gases;

[0009] Step S20: Fit the correlation of the discrete data of the peak areas of the hydrocarbon component gases in the two channels to obtain the calibration coefficients of the two channels;

[0010] Step S30: Obtain multiple components of the quick chromatography in oil logging. Through correlation fitting, obtain the calibration coefficients corresponding to the multiple components. Based on multiple sets of the calibration coefficients, obtain the hydrocarbon component detection data of the two calibrated chromatographic channels.

[0011] In some preferred embodiments, the method for obtaining the discrete data is as follows:

[0012]

[0013] Among them, the dual channels include Channel A and Channel B; is discrete data; Con 1 is a 0.1% standard gas mixture sample; Con 2 is a 1% standard gas mixture sample; Con 3 is a 10% standard gas mixture sample; Con 4 is 100% pure standard gas; A fid is the amplification factor of Channel A; B fid is the amplification factor of Channel B; A c11 is the peak area of the standard gas when injecting the Con sample into Channel A 1 is the peak area of the standard gas when injecting the Con sample into Channel A; A c12 is the peak area of the standard gas when injecting the Con sample into Channel A 2 is the peak area of the standard gas when injecting the Con sample into Channel A; Ac 13 is the peak area of the standard gas when injecting the Con sample into Channel A 3 is the peak area of the standard gas when injecting the Con sample into Channel A; A c14 is the peak area of the standard gas when injecting the Con sample into Channel A 4 is the peak area of the standard gas when injecting the Con sample into Channel A; B c11 is the peak area of the standard gas when injecting the Con sample into Channel B 1 is the peak area of the standard gas when injecting the Con sample into Channel B; B c12 is the peak area of the standard gas when injecting the Con sample into Channel B 2 is the peak area of the standard gas when injecting the Con sample into Channel B; B c13 is the peak area of the standard gas when injecting the Con sample into Channel B 3 is the peak area of the standard gas when injecting the Con sample into Channel B; B c14 is the peak area of the standard gas when injecting the Con sample into Channel B 4 is the peak area of the standard gas when injecting the Con sample.

[0014] In some preferred embodiments, the method for obtaining the calibration coefficient includes the least squares method.

[0015] In some preferred embodiments, the method for obtaining the calibration coefficient K is as follows:

[0016] B c1 =(K × ln(A c1 ) + c) × A c1 ;

[0017] Among them, Ac1 is the peak area of c1 in channel A, and B c1 is the peak area of c1 in channel B; wherein, A c1 includes A c11 、A c12 、A c13 、A c14 ; B c1 includes B c11 、B c12 、B c13 、B c14 , and c is a constant obtained when fitting the correlation.

[0018] In some preferred embodiments, based on the correction coefficient, the discrete data errors measured by the two channels are corrected to within a preset percentage.

[0019] In some preferred embodiments, the standard gas includes methane.

[0020] In some preferred embodiments, for the hydrocarbon component detection data of the two calibrated chromatographic channels, the method is as follows:

[0021] Substitute multiple sets of the correction coefficients and the constant into the acquisition software of the dual-channel chromatograph, and the acquisition software performs homing calculations to obtain the hydrocarbon component detection data of the two calibrated chromatographic channels.

[0022] On the other hand, the present invention proposes a hydrocarbon component data calibration system for a dual-channel chromatograph, based on a hydrocarbon component data calibration method for a dual-channel chromatograph. The system includes:

[0023] A discrete data acquisition module configured to inject standard gases with different concentrations into the dual-channel chromatograph, and based on the amplification coefficients of the two channels and the peak areas of the standard gases with different concentrations in the two channels, obtain discrete data of the peak areas of the hydrocarbon component gases in the two channels at different concentrations; wherein, the standard gas includes hydrocarbon component gases;

[0024] A correlation fitting module configured to fit the correlation of the discrete data of the peak areas of the hydrocarbon component gases in the two channels to obtain the correction coefficients of the two channels;

[0025] A calibration module configured to obtain multiple components of the rapid chromatograph for petroleum logging, obtain the correction coefficients corresponding to the multiple components through correlation fitting, and based on multiple sets of the correction coefficients, obtain the hydrocarbon component detection data of the two calibrated chromatographic channels.

[0026] In a third aspect of the present invention, an electronic device is proposed, including:

[0027] At least one processor; and

[0028] A memory communicatively connected to at least one of the processors; wherein,

[0029] The memory stores instructions executable by the processor, and the instructions are used to be executed by the processor to implement the above-mentioned method for calibrating hydrocarbon component data of a dual-channel chromatograph.

[0030] In a fourth aspect of the present invention, a computer-readable storage medium is proposed. The computer-readable storage medium stores computer instructions, and the computer instructions are used to be executed by the computer to implement the above-mentioned method for calibrating hydrocarbon component data of a dual-channel chromatograph.

[0031] Advantages of the present invention:

[0032] The present invention establishes a calibration coefficient and forms a method for calibrating hydrocarbon component data of a dual-channel chromatograph, ensuring the accuracy of hydrocarbon component data detection by the dual-channel chromatograph. Description of the Drawings

[0033] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objectives, and advantages of the present application will become more apparent:

[0034] Figure 1 is a schematic flow chart of a method for calibrating hydrocarbon component data of a dual-channel chromatograph according to the present invention;

[0035] Figure 2 is the chromatographic curves of two channels of a chromatograph before calibration of a method for calibrating hydrocarbon component data of a dual-channel chromatograph according to the present invention;

[0036] Figure 3 is the chromatographic curves of two channels of a chromatograph after calibration of a method for calibrating hydrocarbon component data of a dual-channel chromatograph according to the present invention

[0037] Figure 4 is a schematic structural diagram of a computer system of a server for implementing the method, system, and device embodiments of the present application. Detailed Embodiments

[0038] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant invention and are not intended to limit the invention. Additionally, it should be noted that for the sake of description, only parts related to the relevant invention are shown in the drawings.

[0039] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0040] The present invention provides a calibration method for hydrocarbon component data of a dual-channel chromatograph. The method comprises the following steps:

[0041] Step S10: Inject standard gases with different concentrations into the dual-channel chromatograph, and based on the amplification factors of the two channels and the peak areas of the standard gases with different concentrations in the two channels, obtain the discrete data of the peak areas of the hydrocarbon component gases in the two channels at different concentrations; wherein, the standard gases include hydrocarbon component gases;

[0042] Step S20: Fit the correlation of the discrete data of the peak areas of the hydrocarbon component gases in the two channels to obtain the calibration coefficients of the two channels;

[0043] Step S30: Obtain multiple components of the quick chromatograph for petroleum logging, obtain the corresponding calibration coefficients for the multiple components through correlation fitting, and based on multiple sets of the calibration coefficients, obtain the calibrated hydrocarbon component detection data of the two chromatographic channels.

[0044] Among them, the present invention compares and calculates the peak areas of the hydrocarbon component data detected in the two chromatographic channels under standard gas samples with different concentrations. Taking Channel A as the base point, the calibration coefficient of Channel B is obtained, and based on the new calibration coefficient, the hydrocarbon component detection data of the two chromatographic channels are output after being reset.

[0045] For a clearer description of a calibration method for hydrocarbon component data of a dual-channel chromatograph according to the present invention, the following will Figure 1 , Figure 2 , Figure 3 , elaborate on each step in the embodiments of the present invention.

[0046] A calibration method for hydrocarbon component data of a dual-channel chromatograph according to the first embodiment of the present invention includes Step S10 - Step S30, and each step is described in detail as follows:

[0047] Step S10: Inject standard gases with different concentrations into the dual-channel chromatograph, and based on the amplification factors of the two channels and the peak areas of the standard gases with different concentrations in the two channels, obtain the discrete data of the peak areas of the hydrocarbon component gases in the two channels at different concentrations; wherein, the standard gases include hydrocarbon component gases;

[0048] The difference between the dual-channel chromatograph and other chromatographs is that there are two independent chromatographic channels, Channel A and Channel B. During calibration, the standard sample concentrations of each component in the two channels are the same. The following takes four concentration points as calibration points. Among them, the method for obtaining the discrete data is:

[0049]

[0050] Among them, the two channels include Channel A and Channel B; is discrete data; Con1 is a standard gas mixture sample of 0.1%; Con 2 is a standard gas mixture sample of 1%; Con 3 is a standard gas mixture sample of 10%; Con 4 is 100% pure standard gas; A fid is the amplification factor of channel A; B fid is the amplification factor of channel B; A c11 is the injection of Con into channel A 1 When calibrating the standard sample, it is the peak area of the standard gas; A c12 is the injection of Con into channel A 2 When calibrating the standard sample, it is the peak area of the standard gas; Ac 13 is the injection of Con into channel A 3 When calibrating the standard sample, it is the peak area of the standard gas; A c14 is the injection of Con into channel A 4 When calibrating the standard sample, it is the peak area of the standard gas; B c11 is the injection of Con into channel B 1 When calibrating the standard sample, it is the peak area of the standard gas; B c12 is the injection of Con into channel B 2 When calibrating the standard sample, it is the peak area of the standard gas; B c13 is the injection of Con into channel B 3 When calibrating the standard sample, it is the peak area of the standard gas; B c14 is the injection of Con into channel B 4 When calibrating the standard sample, it is the peak area of the standard gas.

[0051]

[0052] Among them, it can be seen from the analysis results that the peak area errors calculated by the two channels are relatively large, specifically manifested as the measurement error > 3.0%. It does not meet the on-site use requirements.

[0053] Analyzing the reasons, Con is a known fixed value, A fid and B fid are physical devices and they are independent, so the calculation results will be different, resulting in the non-compliance of the repeatability of channels A and B. However, it also has stability. Therefore, the calculation results of A c1 and B c1 must have a correlation.

[0054] Step S20, fitting the correlation of the discrete data of the peak areas of the hydrocarbon component gases in the dual channels to obtain the correction coefficients of the dual channels;

[0055] The purpose of the present invention is to obtain A c1 and B c1The correlation is used to calculate the calibration coefficients of channels A and B by the least squares method, and the measurement errors of the two channels are corrected within 3%, and are expressed in the form of an algorithm expression.

[0056] After multiple formula designs, calculations and verifications, the following formula is obtained, which can well solve the problem of fitting of two channels. Among them, the method for obtaining the calibration coefficient K is:

[0057] B c1 =(K×ln(A c1 )+c)×A c1 ; (2)

[0058] Among them, A c1 is the peak area of c1 in channel A, and B c1 is the peak area of c1 in channel B; among them, A c1 includes A c11 , A c12 , A c13 , A c14 ; B c1 includes B c11 , B c12 , B c13 , B c14 , and c is a constant obtained when fitting the correlation.

[0059] Among them, based on the calibration coefficient, the discrete data error measured by the two channels is corrected within a preset percentage.

[0060] In this embodiment, the preset percentage is preferably 3%.

[0061] Preferably, the standard gas includes methane.

[0062] Step S30, obtain multiple components of the petroleum logging fast chromatography, obtain the calibration coefficients corresponding to the multiple components through correlation fitting, and obtain the calibrated hydrocarbon component detection data of the two chromatographic channels based on multiple groups of the calibration coefficients.

[0063] Among them, the method for the calibrated hydrocarbon component detection data of the two chromatographic channels is:

[0064] Substitute multiple groups of the calibration coefficients and the constant into the acquisition software of the dual-channel chromatograph, and the acquisition software performs homing calculations to obtain the calibrated hydrocarbon component detection data of the two chromatographic channels.

[0065] Figure 2 In, the curve pointed by the arrow is the effect when injecting 1% C1 without using the new formula, and there are obvious sawtooth shapes when switching between channels A and B.

[0066] Figure 3Among them, the curve pointed by the arrow is the effect when using the new formula when injecting 1% C1. The switching between channels A and B is smooth, and the result meets the requirements of the industry standard for measurement error.

[0067] In this embodiment, the number of components is preferably 7. Taking these 7 components as an example, as follows:

[0068] Step S10: Click the dual-channel calibration of the chromatograph software, inject a standard gas of 2000 ml of 1% mixed gas sample into the dual-channel chromatograph, and perform analysis to obtain the analysis data of multiple groups of hydrocarbon component gases in the two chromatographic channels. The maximum error in the table is 4.16%;

[0069] c1 c2 c3 ic4 nc4 ic5 nc5 1.0657 0.267 0.2637 0.263 0.262 0.0974 0.1019 Channel A 1.067 0.268 0.2662 0.2654 0.2654 0.0987 0.0985 Channel B 1.0804 0.2672 0.264 0.2641 0.2633 0.0982 0.1026 Channel A 1.0654 0.2656 0.2675 0.266 0.2664 0.0992 0.0985 Channel B 1.0688 0.266 0.2659 0.2647 0.2648 0.0984 0.1028 Channel A 1.0652 0.2666 0.2681 0.2662 0.2663 0.0993 0.0987 Channel B ;

[0070] Step S20: The software uses the least squares method to calculate the correction coefficients of channels A and B, and automatically substitutes the correction coefficients into the calibration curve.

[0071] Step S30: After the dual-channel calibration is completed, inject a standard gas of 2000 ml of 1% mixed gas sample into the dual-channel chromatograph again for analysis to detect the effect of the dual-channel calibration. The chromatograph software automatically substitutes the calibration coefficients into formula (2) to obtain the analysis data of the calibrated hydrocarbon component gases. The maximum error in the table is 2.0%. The error is within 3%, meeting the requirements;

[0072] c1 c2 c3 ic4 nc4 ic5 nc5 1.0677 0.266 0.2656 0.2643 0.2631 0.0981 0.1022 Channel A 1.0672 0.264 0.2666 0.2658 0.2656 0.0991 0.1011 Channel B 1.068 0.2673 0.2648 0.2641 0.2634 0.0981 0.102 Channel A 1.0668 0.2659 0.2672 0.2657 0.2654 0.097 0.0101 Channel B 1.0665 0.2676 0.264 0.2632 0.2626 0.0977 0.1014 Channel A 1.0638 0.2655 0.265 0.2658 0.2644 0.0985 0.0994 Channel B 。

[0073] Although the various steps are described in the above order in the above embodiments, those skilled in the art can understand that in order to achieve the effects of this embodiment, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in a reversed order, and these simple changes are within the protection scope of the present invention.

[0074] The second embodiment of the present invention proposes a hydrocarbon component data calibration system for a dual-channel chromatograph, based on a hydrocarbon component data calibration method for a dual-channel chromatograph. The system includes:

[0075] A discrete data acquisition module configured to inject standard gases of different concentrations into the dual-channel chromatograph, and based on the amplification coefficients of the dual channels and the peak areas of the standard gases of different concentrations within the dual channels, obtain discrete data of the peak areas of the hydrocarbon component gases of the dual channels at different concentrations; wherein, the standard gas includes hydrocarbon component gases;

[0076] A correlation fitting module configured to fit the correlation of the discrete data of the peak areas of the hydrocarbon component gases of the dual channels to obtain the correction coefficients of the dual channels;

[0077] A calibration module configured to obtain multiple components of a quick chromatography in petroleum logging, obtain the correction coefficients corresponding to the multiple components through correlation fitting, and obtain calibrated hydrocarbon component detection data of two chromatographic channels based on multiple sets of the correction coefficients.

[0078] Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes and related descriptions of the above-described system can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0079] It should be noted that the dual-channel chromatograph hydrocarbon component data calibration system provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be further decomposed or combined. For example, the modules in the above embodiments can be combined into one module, or further split into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing each module or step, and are not regarded as an improper limitation of the present invention.

[0080] An electronic device according to a third embodiment of the present invention includes:

[0081] At least one processor; and

[0082] A memory communicatively connected to at least one of the processors; wherein,

[0083] The memory stores instructions executable by the processor, and the instructions are used to be executed by the processor to implement the above-mentioned dual-channel chromatograph hydrocarbon component data calibration method.

[0084] A computer-readable storage medium according to a fourth embodiment of the present invention stores computer instructions, and the computer instructions are used to be executed by the computer to implement the above-mentioned dual-channel chromatograph hydrocarbon component data calibration method.

[0085] Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes and related descriptions of the above-described storage device and processing device can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0086] Those skilled in the art should be able to realize that the modules and method steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. The programs corresponding to the software modules and method steps can be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium well-known in the technical field. To clearly illustrate the interchangeability of electronic hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in the form of electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0087] Reference is made below to Figure 4 , which shows a schematic structural diagram of a computer system of a server for implementing the method, system, and device embodiments of the present application. Figure 4 The server shown is only an example and should not impose any limitations on the functions and usage scope of the embodiments of the present application.

[0088] As Figure 4 shown, the computer system includes a central processing unit (CPU, Central Processing Unit) 401, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM, Read Only Memory) 402 or the program loaded from the storage section 408 into the random access memory (RAM, Random Access Memory) 403. In the RAM 403, various programs and data required for system operation are also stored. The CPU 401, ROM 402, and RAM 403 are connected to each other through a bus 404. The input / output (I / O, Input / Output) interface 405 is also connected to the bus 404.

[0089] The following components are connected to the I / O interface 405: an input section 406 including a keyboard, a mouse, etc.; an output section 407 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc. and a speaker, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as required. A removable medium 411 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is mounted on the drive 410 as required so that a computer program read therefrom is installed into the storage section 408 as required.

[0090] In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowchart may be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product that includes a computer program carried on a computer-readable medium, and the computer program includes program code for performing the method shown in the flowchart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 409, and / or installed from the removable medium 411. When the computer program is executed by the central processing unit (CPU) 401, the above-described functions defined in the method of the present application are performed. It should be noted that the computer-readable medium described above in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, the computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. And in the present application, the computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries the computer-readable program code. Such a propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium may also be any computer-readable medium other than the computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted by any appropriate medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination of the above.

[0091] Computer program code for performing the operations of this application can be written in one or more programming languages or combinations thereof. The above-mentioned programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (for example, by using an Internet service provider to connect through the Internet).

[0092] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks can occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks shown can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combinations of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0093] The terms "first", "second", etc. are used to distinguish similar objects, rather than to describe or represent a specific order or sequence.

[0094] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, method, article, or device / equipment that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent in these processes, methods, articles, or devices / equipment.

[0095] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A calibration method for hydrocarbon component data of a dual-channel chromatograph, characterized in that, the method comprises the following steps: Step S10, injecting standard gases with different concentrations into the dual-channel chromatograph, and obtaining discrete data of the peak areas of the hydrocarbon component gases in the two channels at different concentrations based on the amplification factors of the two channels and the peak areas of the standard gases with different concentrations in the two channels; wherein, the standard gases include hydrocarbon component gases; Step S20, fitting the correlation of the discrete data of the peak areas of the hydrocarbon component gases in the two channels to obtain the calibration coefficients of the two channels; Step S30, obtaining multiple components of the rapid chromatography of petroleum logging, obtaining the calibration coefficients corresponding to the multiple components through correlation fitting, and obtaining the calibrated hydrocarbon component detection data of the two chromatographic channels based on multiple groups of the calibration coefficients.

2. A calibration method for hydrocarbon component data of a dual-channel chromatograph according to claim 1, characterized in that, the method for obtaining the discrete data is: Among them, the dual channels include Channel A and Channel B; is discrete data; Con 1 is a standard gas mixture sample of 0.1%; Con 2 is a standard gas mixture sample of 1%; Con 3 is a standard gas mixture sample of 10%; Con 4 is 100% pure standard gas; A fid is the amplification factor of Channel A; B fid is the amplification factor of Channel B; A c11 is the injection of Con in Channel A 1 When calibrating the standard sample, the peak area of the standard gas; A c12 is the injection of Con in Channel A 2 When calibrating the standard sample, the peak area of the standard gas; Ac 13 is the injection of Con in Channel A 3 When calibrating the standard sample, the peak area of the standard gas; A c14 is the injection of Con in Channel A 4 When calibrating the standard sample, the peak area of the standard gas; B c11 is the injection of Con in Channel B 1 When calibrating the standard sample, the peak area of the standard gas; B c12 is the injection of Con in Channel B 2 When calibrating the standard sample, the peak area of the standard gas; B c13 is the injection of Con in Channel B 3 When calibrating the standard sample, the peak area of the standard gas; B c14 is the injection of Con in Channel B 4 When calibrating the standard sample, the peak area of the standard gas.

3. A calibration method for hydrocarbon component data of a dual-channel chromatograph according to claim 1, characterized in that, the method for obtaining the calibration coefficients includes the least squares method.

4. A calibration method for hydrocarbon component data of a dual-channel chromatograph according to claim 3, characterized in that, the specific method for obtaining the calibration coefficient K is: B c1 = (K × ln(A c1 )) + c) × A c1 ; Among them, A c1 is the peak area of channel A's c1, and B c1 is the peak area of channel B's c1; among them, A c1 includes A c11 、A c12 、A c13 、A c14 ; B c1 includes B c11 、B c12 、B c13 、B c14 , and c is a constant obtained when fitting the correlation.

5. A calibration method for hydrocarbon component data of a dual-channel chromatograph according to claim 1, characterized in that, based on the calibration coefficients, correcting the discrete data errors measured by the two channels to within a preset percentage.

6. A calibration method for hydrocarbon component data of a dual-channel chromatograph according to claim 1, characterized in that, the standard gases include methane.

7. A calibration method for hydrocarbon component data of a dual-channel chromatograph according to claim 1, characterized in that, the method for the calibrated hydrocarbon component detection data of the two chromatographic channels is: Substituting multiple groups of the calibration coefficients and the constants into the acquisition software of the dual-channel chromatograph, and the acquisition software performs homing calculation to obtain the calibrated hydrocarbon component detection data of the two chromatographic channels.

8. A calibration system for hydrocarbon component data of a dual-channel chromatograph, based on a calibration method for hydrocarbon component data of a dual-channel chromatograph according to any one of claims 1-7, characterized in that, the system includes: A discrete data acquisition module configured to inject standard gases with different concentrations into the dual-channel chromatograph, and obtain discrete data of the peak areas of the hydrocarbon component gases in the two channels at different concentrations based on the amplification factors of the two channels and the peak areas of the standard gases with different concentrations in the two channels; wherein, the standard gases include hydrocarbon component gases; A correlation fitting module configured to fit the correlation of the discrete data of the peak areas of the hydrocarbon component gases in the two channels to obtain the calibration coefficients of the two channels; A calibration module configured to obtain multiple components of the rapid chromatography of petroleum logging, obtain the calibration coefficients corresponding to the multiple components through correlation fitting, and obtain the calibrated hydrocarbon component detection data of the two chromatographic channels based on multiple groups of the calibration coefficients.

9. An electronic device, characterized in that, including: At least one processor; And A memory communicatively connected to at least one of the processors; wherein, the memory stores instructions executable by the processor, and the instructions are used to be executed by the processor to implement a method for calibrating hydrocarbon component data of a dual-channel chromatograph according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, the computer-readable storage medium stores computer instructions, and the computer instructions are used to be executed by the computer to implement a method for calibrating hydrocarbon component data of a dual-channel chromatograph according to any one of claims 1-7.

Images