CN117688420B - Method, system and device for determining oil reservoir type based on gas measurement data - Google Patents

Abstract

The present invention discloses a method, system and device for determining the type of oil reservoir based on gas measurement data, the method comprising: obtaining gas measurement data, the gas measurement data comprising the total hydrocarbon data of the gas measurement display layer; determining the standard factor according to the gas measurement data and a first preset formula; determining the regional gas measurement gas-oil ratio parameter index of the oil reservoir type to be determined; determining the gas-oil ratio parameter according to the standard factor, the regional gas measurement gas-oil ratio parameter index and the second preset formula, and determining the oil reservoir type according to the gas-oil ratio parameter. The embodiment of the present invention realizes a low-cost, high-precision, simple and convenient gas-oil ratio calculation method, which can be widely used in the field of oil reservoir engineering technology for petroleum development.

Description

Method, system and device for determining reservoir type based on gas logging data

Technical Field

The present invention relates to the technical field of oil reservoir engineering for petroleum development, and in particular to a method, system and device for determining oil reservoir type based on gas logging data.

Background Art

In the process of reservoir reserve calculation and development plan evaluation, oilfield technicians are required to accurately identify reservoir types and classify reservoir properties of condensate gas, volatile oil, and black oil in order to obtain accurate reservoir reserve parameters and formulate the best oilfield development implementation plan to achieve the purpose of increasing oilfield reserves and production. The key to achieving reservoir reserve calculation is to determine the reservoir gas-oil ratio parameters in the formation environment. The existing methods for determining reservoir gas-oil ratio parameters include:

Cable formation pump sampling method: The pressure sampling instrument is lowered to the target layer through a cable, and the formation fluid is pumped out through a probe to sample in situ to determine the gas-oil ratio parameters;

Drill pipe formation test method: establish reservoir seepage channels by perforating the target layer, obtain reservoir production data of the target layer, and take samples to confirm the gas-oil ratio parameters of the reservoir;

Well logging data empirical chart method: Based on regional reservoir logging and production data, make empirical charts of reservoir gas-oil ratio parameters and logging and other related information to estimate gas-oil ratio parameters.

However, when the cable formation pump sampling method is used, reservoir samples are easily contaminated by mud, and the range of the pump when extracting fluid samples is small, which makes the sample representativeness poor; the drill pipe formation test method is expensive and has a long operation cycle, and cannot meet the needs of multi-point sampling in the reservoir; the logging data empirical chart method has the problem that the logging information is easily affected by factors such as formation pressure, hydrogen index, mud content, and wellbore conditions, and has problems such as poor accuracy, high subjectivity of the empirical chart, and low accuracy of the gas-oil ratio parameters.

Summary of the invention

In view of this, the purpose of the embodiments of the present invention is to provide a method, system and device for determining the type of oil reservoir based on gas logging data, thereby realizing a low-cost, high-precision, simple and convenient gas-oil ratio calculation method.

In a first aspect, an embodiment of the present invention provides a method for determining a reservoir type based on gas logging data, comprising:

Acquiring gas testing data, the gas testing data including the total hydrocarbon data of the gas testing display layer;

Determine the standard factor according to the gas measurement data and the first preset formula;

Determine the regional gas-to-oil ratio parameter index of the reservoir type to be determined;

The gas-oil ratio parameter is determined according to the standard factor, the regional gas measurement gas-oil ratio parameter index and the second preset formula, and the reservoir type is determined according to the gas-oil ratio parameter.

Optionally, gas logging data is obtained, the gas logging data including the total hydrocarbon data of the gas logging display layer, specifically including:

Collect underground gas data through a logging device, wherein the logging device includes a gas detector or a comprehensive logging device;

The maximum value of the total hydrocarbon data of the gas testing display layer is extracted from the underground gas data, and the maximum value of the total hydrocarbon data is used as the gas testing data; wherein the total hydrocarbon data includes a data group of gas testing methane, gas testing ethane, gas testing propane or gas testing butane, the data group of gas testing methane includes several samples of gas testing methane content, the data group of gas testing ethane includes several samples of gas testing ethane content, the data group of gas testing propane includes several samples of gas testing propane content, and the data group of gas testing butane includes several samples of gas testing butane content.

Optionally, the first preset formula is:

Wherein, X _Z represents the standard factor, _C1 is the methane content measured by gas, _C2 is the ethane content measured by gas, _C3 is the propane content measured by gas, and _C4 is the butane content measured by gas.

Optionally, determining a regional gas-to-oil ratio parameter index of the type of the reservoir to be determined specifically includes:

Acquire a number of sample data in the area of the reservoir type to be determined; the sample data include gas-oil ratio parameter samples and standard factor samples of known reservoirs;

The regional gas-to-oil ratio parameter index of the reservoir type to be determined is determined by fitting the gas-to-oil ratio parameter sample, the standard factor sample and the second preset formula.

Optionally, the second preset formula is:

Rog＝a·(X _Z ) ^b

Wherein, Rog represents the gas-oil ratio parameter, a represents the gas-oil ratio parameter index of the first region measured by gas, b represents the gas-oil ratio parameter index of the second region measured by gas, and _XZ represents the standard factor.

Optionally, the reservoir type is determined based on gas-oil ratio parameters, specifically including:

Matching gas-to-fuel ratio parameters to several preset ranges;

If the gas-oil ratio parameter is within the first preset range, the reservoir type is determined to be the first type; if the first preset range is less than 250 m ³ /m ³ , the first type is "black oil";

If the gas-oil ratio parameter is within the second preset range, the reservoir type is determined to be the second type; the second preset range is 250-550 ^{m 3} /m ³ , and the second type is "volatile oil"

If the gas-oil ratio parameter is within the third preset range, the reservoir type is determined to be the third type; the third preset range is 550-18000 ^{m 3} /m ³ , and the third type is “condensate gas”.

In a second aspect, an embodiment of the present invention further provides a system for determining reservoir type based on gas logging data, comprising:

The first module is used to obtain gas testing data, which includes the total hydrocarbon data of the gas testing display layer;

The second module is used to determine the standard factor according to the gas measurement data and the first preset formula;

The third module is used to determine the regional gas-to-oil ratio parameter index of the reservoir type to be determined;

The fourth module is used to determine the gas-oil ratio parameter according to the standard factor, the regional gas measurement gas-oil ratio parameter index and the second preset formula, and determine the reservoir type according to the gas-oil ratio parameter.

In a third aspect, an embodiment of the present invention further provides a device for determining the type of oil reservoir based on gas logging data, comprising:

at least one processor;

at least one memory for storing at least one program;

When at least one program is executed by at least one processor, the at least one processor implements the method described above.

In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, in which a program executable by a processor is stored. The program executable by the processor is used to execute the method as described above when executed by the processor.

In a fifth aspect, an embodiment of the present invention further provides a system for determining reservoir type based on gas logging data, comprising a gas logging data acquisition device and a computer device connected to the gas logging data acquisition device; wherein:

Gas measurement data collection equipment, used to collect gas measurement data;

Computer equipment includes:

at least one processor;

at least one memory for storing at least one program;

When at least one program is executed by at least one processor, the at least one processor implements the method described above.

Implementation of the embodiments of the present invention includes the following beneficial effects: the method provided in the embodiments of the present invention is implemented based on existing gas testing data, fully exploits the existing gas testing data, and no additional data collection operations are required, which greatly reduces the cost of predicting reservoir types, and the method is simple and easy to implement; in a specific embodiment, the accuracy of the gas-oil ratio parameter index can reach up to four decimal places. As the oil test data becomes richer, the accuracy of the gas-oil ratio parameter index increases with the richness of the oil test data, that is, the increase in the amount of data. Therefore, the accuracy of the gas-oil ratio parameter will also increase accordingly, and the prediction results of the reservoir type will be more accurate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a flow chart of steps of a method for determining reservoir type based on gas logging data provided by an embodiment of the present invention;

FIG2 is a relationship diagram between a standard factor _Xz and a gas-oil ratio parameter Rog provided by an embodiment of the present invention;

3 is a structural block diagram of a system for determining reservoir type based on gas logging data provided by an embodiment of the present invention;

FIG4 is a structural block diagram of a device for determining reservoir type based on gas logging data provided by an embodiment of the present invention;

FIG5 is a structural block diagram of another system for determining reservoir type based on gas logging data provided by an embodiment of the present invention.

DETAILED DESCRIPTION

The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The step numbers in the following embodiments are only provided for the convenience of explanation and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiment can be adaptively adjusted according to the understanding of those skilled in the art.

In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

Unless otherwise defined, all technical and scientific terms used in the embodiments of the present invention have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the embodiments of the present invention are only for the purpose of describing the embodiments of the present invention and are not intended to limit the present invention.

Before further describing the embodiments of the present invention in detail, the nouns and terms involved in the embodiments of the present invention are described. The nouns and terms involved in the embodiments of the present invention are subject to the following interpretations.

As shown in FIG1 , an embodiment of the present invention provides a method for determining reservoir type based on gas logging data, comprising:

S100, obtaining gas testing data, the gas testing data including total hydrocarbon data of the gas testing display layer;

S200, determining a standard factor according to gas measurement data and a first preset formula;

S300, determining a regional gas-to-oil ratio parameter index of a reservoir type to be determined;

S400, determining a gas-oil ratio parameter according to a standard factor, a regional gas measurement gas-oil ratio parameter index and a second preset formula, and determining a reservoir type according to the gas-oil ratio parameter.

Specifically, an oil reservoir refers to petroleum or natural gas stored underground, usually in a storage enclosure. Due to different geological environments, different oil reservoirs are located in different types of enclosures and reservoir types. Due to the needs of oil field development, it is necessary to judge and classify oil reservoirs in order to facilitate the development and use of oil fields. Among them, a enclosure is a place that can prevent oil and gas from continuing to migrate and allow oil and gas to accumulate in it.

Specifically, gas logging data is data on gas in oil and gas layers obtained by gas logging of drilled wells, and is used to identify oil layers, gas layers, water layers and other oil and gas layers; the method provided in the embodiment of the present invention aims to fully tap the role of gas logging data to solve the problems faced in the process of oil field opening.

Specifically, gas logging is a logging method that directly measures the combustible gas content in the well. The combustible gas in the oil and gas layer is extracted into the gas analyzer through a degasser, and the combustible gas is converted into an electrical signal through the gas analyzer to measure the gas logging data.

Optionally, gas logging data is obtained, the gas logging data including the total hydrocarbon data of the gas logging display layer, specifically including:

Collect underground gas data through a logging device, wherein the logging device includes a gas detector or a comprehensive logging device;

The maximum value of the total hydrocarbon data of the gas testing display layer is extracted from the underground gas data, and the maximum value of the total hydrocarbon data is used as the gas testing data; wherein the total hydrocarbon data includes a data group of gas testing methane, gas testing ethane, gas testing propane or gas testing butane, the data group of gas testing methane includes several samples of gas testing methane content, the data group of gas testing ethane includes several samples of gas testing ethane content, the data group of gas testing propane includes several samples of gas testing propane content, and the data group of gas testing butane includes several samples of gas testing butane content.

Specifically, the recording step of total hydrocarbon data is 1 point/m; total hydrocarbons include the content of total organic hydrocarbon compounds detected in liquid or gas samples collected from underground reservoirs, including aromatic hydrocarbons, saturated hydrocarbons, cycloalkanes and other substances.

Specifically, the data collected by the logging device also includes data of other hydrocarbons except methane, ethane, propane or butane, and non-hydrocarbon data, wherein the non-hydrocarbon components include carbon dioxide or nitrogen.

Specifically, the total hydrocarbon data measured by the gas logging method can directly reflect the oil and gas in the underground environment of the wellbore and is not affected by the drilling environment. Therefore, the values obtained from the total hydrocarbon data are preferably used.

Optionally, the first preset formula is:

Wherein, X _Z represents the standard factor, _C1 is the methane content measured by gas, _C2 is the ethane content measured by gas, _C3 is the propane content measured by gas, and _C4 is the butane content measured by gas.

Specifically, during the data acquisition process, the wellbore environment will affect the gas logging data. The standard factor _XZ is used to eliminate the impact of the wellbore environment on the gas logging data, and can highlight the response of the gas logging data to the gas-oil ratio parameter.

Specifically, the calculation method of the standard factor _XZ provided in the embodiment of the present invention is summarized from a large amount of practical work, and is obtained by performing calculation transformation on four types of gas logging data, reducing multi-dimensional data to one-dimensional data, which facilitates calculation and contains a variety of geological information; among them, methane, ethane, propane and butane are all expressed in percentages, and the standard factor _XZ is dimensionless.

Optionally, determining a regional gas-to-oil ratio parameter index of the type of the reservoir to be determined specifically includes:

Acquire a number of sample data in the area of the reservoir type to be determined; the sample data include gas-oil ratio parameter samples and standard factor samples of known reservoirs;

The regional gas-to-oil ratio parameter index of the reservoir type to be determined is determined by fitting the gas-to-oil ratio parameter sample, the standard factor sample and the second preset formula.

In a specific embodiment, the oil test data of 7 layers in a region are known, and a formation crude oil sample is obtained through a drill pipe formation test of a layer, and the crude oil sample is analyzed to obtain the gas-oil ratio parameter of the layer, and the gas testing data of the layer is read, and the standard factor _XZ is calculated through the gas testing data to obtain a relationship diagram between the standard factor _XZ and the gas-oil ratio parameter Rog, as shown in FIG2 ; the relationship between the standard factor _XZ and the gas-oil ratio parameter obtained by data fitting satisfies y=6.0823x ^-2.979 , wherein y is the gas-oil ratio parameter Rog, x is the standard factor _XZ , the gas testing gas-oil ratio parameter index a of the first region is 6.0823, and the gas testing gas-oil ratio parameter index b of the second region is 2.979.

Specifically, when determining the gas-to-oil ratio parameter index a of the first region and the gas-to-oil ratio parameter index b of the second region, absolute values are taken so that the gas-to-oil ratio parameter index a of the first region and the gas-to-oil ratio parameter index b of the second region are both positive numbers.

Specifically, the accuracy of the regional gas-test gas-oil ratio parameter index depends on the richness of regional oil test data or gas test data. The higher the richness, that is, the larger the amount of regional oil test data or gas test data, the higher the accuracy of the regional gas-test gas-oil ratio parameter index.

Optionally, the second preset formula is:

Rog＝a·(X _Z ) ^b

Wherein, Rog represents the gas-oil ratio parameter, a represents the gas-oil ratio parameter index of the first region measured by gas, b represents the gas-oil ratio parameter index of the second region measured by gas, and _XZ represents the standard factor.

Specifically, the calculation formula of the gas-oil ratio parameter Rog is summarized from a large amount of practical work; as shown in Figure 2, by fitting the gas-oil ratio parameters under several different standard factors _XZ , the fitting relationship y=6.0823x ^-2.979 is obtained, and ^R2 represents the degree of fitting, and the closer to 1, the better the degree of fitting; ^R2 =0.9936 in Figure 2, indicating a good degree of fitting, indicating that the formula Rog=a·( _XZ ) ^b achieves a good fit between the gas-oil ratio parameter Rog and the standard factor _XZ .

Optionally, the reservoir type is determined based on gas-oil ratio parameters, specifically including:

Matching gas-to-fuel ratio parameters to several preset ranges;

If the gas-oil ratio parameter is within the first preset range, the reservoir type is determined to be the first type; if the first preset range is less than 250 m ³ /m ³ , the first type is "black oil";

If the gas-oil ratio parameter is within the second preset range, the reservoir type is determined to be the second type; the second preset range is 250-550 ^{m 3} /m ³ , and the second type is "volatile oil"

If the gas-oil ratio parameter is within the third preset range, the reservoir type is determined to be the third type; the third preset range is 550-18000 ^{m 3} /m ³ , and the third type is “condensate gas”.

Specifically, oil reservoirs can be divided into black oil, volatile oil and condensate gas according to the fluid properties of the reservoir; black oil is a crude oil with a relatively high density and high viscosity, containing a high proportion of heavy hydrocarbons; volatile oil is a crude oil with a relatively low density, low viscosity and high volatility, mainly composed of low molecular weight hydrocarbons; condensate gas is a light component in crude oil, and similar to volatile oil, the existence conditions of condensate gas in the gas state are more stringent.

Specifically, the method provided in the embodiment of the present invention can be implemented by a computer device; when implemented by a computer device, the calculated gas-oil ratio parameters are stored in the computer device for user reference; at the same time, the calculated gas-oil ratio parameters and reservoir type are displayed on a display device connected to the computer device for user viewing.

Implementation of the embodiments of the present invention includes the following beneficial effects: the method provided in the embodiments of the present invention is implemented based on existing gas testing data, fully exploits the existing gas testing data, and no additional data collection operations are required, which greatly reduces the cost of predicting reservoir types, and the method is simple and easy to implement; in a specific embodiment, the accuracy of the gas-oil ratio parameter index can reach up to four decimal places. As the oil test data becomes richer, the accuracy of the gas-oil ratio parameter index increases with the richness of the oil test data, that is, the increase in the amount of data. Therefore, the accuracy of the gas-oil ratio parameter will also increase accordingly, and the prediction results of the reservoir type will be more accurate.

As shown in FIG3 , an embodiment of the present invention further provides a system for determining reservoir type based on gas logging data, including:

The first module is used to obtain gas testing data, which includes the total hydrocarbon data of the gas testing display layer;

The second module is used to determine the standard factor according to the gas measurement data and the first preset formula;

The third module is used to determine the regional gas-to-oil ratio parameter index of the reservoir type to be determined;

The fourth module is used to determine the gas-oil ratio parameter according to the standard factor, the regional gas measurement gas-oil ratio parameter index and the second preset formula, and determine the reservoir type according to the gas-oil ratio parameter.

It can be seen that the contents of the above method embodiments are all applicable to the present system embodiments, the functions specifically implemented by the present system embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

As shown in FIG4 , an embodiment of the present invention further provides a device for determining the type of oil reservoir based on gas logging data, comprising:

at least one processor;

at least one memory for storing at least one program;

When at least one program is executed by at least one processor, the at least one processor implements the method described above.

Among them, the memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. The memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a remote memory remotely arranged relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

It can be seen that the contents of the above method embodiments are all applicable to the present device embodiments, the functions specifically implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

An embodiment of the present invention further provides a computer-readable storage medium, in which a program executable by a processor is stored. The program executable by the processor is used to execute the method as described above when executed by the processor.

It is understood that all or some steps and systems in the disclosed method above can be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, and the computer-readable medium can include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, magnetic tape, disk storage or other magnetic storage device, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

As shown in FIG5 , an embodiment of the present invention further provides a system for determining reservoir types based on gas logging data, including a gas logging data acquisition device and a computer device connected to the gas logging data acquisition device; wherein:

Gas measurement data collection equipment, used to collect gas measurement data;

Computer equipment includes:

at least one processor;

at least one memory for storing at least one program;

When at least one program is executed by at least one processor, the at least one processor implements the method described above.

Specifically, the gas measurement data collection equipment includes but is not limited to gas measurement instruments or comprehensive logging instruments and other logging devices; and the computer equipment may be different types of electronic devices, including but not limited to desktop computers, laptops and other terminals.

It can be seen that the contents of the above method embodiments are all applicable to the present system embodiments, the functions specifically implemented by the present system embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims (6)

1. A method of determining a reservoir type based on gas logging data, comprising:

acquiring gas detection data, wherein the gas detection data comprise all-hydrocarbon data of a gas detection display layer;

determining a standard factor according to the gas measurement data and a first preset formula;

determining an regional gas-to-gas-oil ratio parameter index of the oil reservoir type to be determined;

Determining a gas-oil ratio parameter according to the standard factor, the regional gas-oil ratio parameter index and a second preset formula, and determining an oil reservoir type according to the gas-oil ratio parameter;

the method for acquiring the gas detection data comprises the following steps of:

collecting underground gas data through a logging device, wherein the logging device comprises an air logging instrument or a comprehensive logging instrument;

Extracting the maximum value of the full hydrocarbon data of the gas detection display layer from the underground gas data, and taking the maximum value of the full hydrocarbon data as the gas detection data; the whole hydrocarbon data comprises a data set of gas-measuring methane, gas-measuring ethane, gas-measuring propane or gas-measuring butane, wherein the data set of gas-measuring methane comprises a plurality of sample gas-measuring methane contents, the data set of gas-measuring ethane comprises a plurality of sample gas-measuring ethane contents, the data set of gas-measuring propane comprises a plurality of sample gas-measuring propane contents, and the data set of gas-measuring butane comprises a plurality of sample gas-measuring butane contents;

the first preset formula is:

Wherein X _Z represents a standard factor, C ₁ is the content of methane measured by gas, C ₂ is the content of ethane measured by gas, C ₃ is the content of propane measured by gas, and C ₄ is the content of butane measured by gas;

the determining of the regional gas-oil ratio parameter index of the oil reservoir type to be determined specifically comprises the following steps:

acquiring a plurality of sample data in an oil reservoir type area to be determined; the sample data comprises a gas-oil ratio parameter sample and a standard factor sample of a known oil reservoir;

Determining an regional gas-oil ratio parameter index of the oil reservoir type to be determined according to the gas-oil ratio parameter sample, the standard factor sample and the second preset formula in a fitting mode;

the second preset formula is:

Rog＝a·(X_Z)^b

Wherein Rog represents a gas-oil ratio parameter, a is a gas-oil ratio parameter index of a first region, b is a gas-oil ratio parameter index of a second region, and X _Z represents a standard factor.

2. The method for determining a reservoir type based on gas-to-oil ratio data according to claim 1, wherein the determining a reservoir type according to the gas-to-oil ratio parameter specifically comprises:

Matching the gas-oil ratio parameter with a plurality of preset ranges;

if the gas-oil ratio parameter is in a first preset range, determining the oil reservoir type as a first type; the first preset range is smaller than 250m ³/m³, and the first type is black oil;

if the gas-oil ratio parameter is in a second preset range, determining the oil reservoir type as a second type; the second preset range is 250-550 m ³/m³, and the second type is volatile oil;

if the gas-oil ratio parameter is in a third preset range, determining the oil reservoir type as a third type; the third preset range is 550-18000 m ³/m³, and the third type is condensate gas.

3. A system for implementing the method of determining reservoir type based on gas logging data as claimed in claim 1 or 2, comprising:

The first module is used for acquiring gas detection data, wherein the gas detection data comprise all-hydrocarbon data of a gas detection display layer;

The second module is used for determining a standard factor according to the gas measurement data and a first preset formula;

the third module is used for determining an regional gas-oil ratio parameter index of the oil reservoir type to be determined;

and the fourth module is used for determining the gas-oil ratio parameter according to the standard factor, the regional gas-measurement gas-oil ratio parameter index and a second preset formula, and determining the oil reservoir type according to the gas-oil ratio parameter.

4. An apparatus for determining a reservoir type based on gas logging data, comprising:

At least one processor;

At least one memory for storing at least one program;

the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method of claim 1 or 2.

5. A computer readable storage medium, in which a processor executable program is stored, characterized in that the processor executable program is for performing the method of claim 1 or 2 when being executed by a processor.

6. The system for determining the oil reservoir type based on the gas detection data is characterized by comprising a gas detection data acquisition device and a computer device connected with the gas detection data acquisition device; wherein,

The gas detection data acquisition equipment is used for acquiring gas detection data;

the computer device includes:

At least one processor;

At least one memory for storing at least one program;

the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method of claim 1 or 2.