CN106837317A - Tight reservoir oil charging simulation method and system - Google Patents

Abstract

The invention discloses a method and a system for simulating oil filling of a tight reservoir, wherein the method comprises the following steps: obtaining a first sample corresponding to a tight reservoir and a second sample corresponding to a target source rock; preprocessing the first sample, and performing overburden pressure physical property measurement and formation water injection to obtain first data; carrying out total organic carbon, pyrolysis and maturity determination on the second sample, and carrying out hydrocarbon generation dynamics test of an open system on the second sample with the maturity lower than a preset value to obtain second data; determining a source storage and preparation relation of the tight reservoir according to the logging information, the first information and the second information, filling a first sample and a second sample according to the relation, and obtaining a simulation sample; and (3) according to the stratum burying history, the thermal history, the current stratum temperature and the current stratum pressure, carrying out geological process constraint simulation experiment on the simulation sample, and then carrying out petroleum distribution determination to determine the petroleum distribution condition. The simulation method and the simulation system for oil filling of the tight reservoir provided by the invention can truly simulate crude oil generated by hydrocarbon source rocks and the composition of the crude oil.

Description

Tight reservoir oil charging simulation method and system

technical field

The invention relates to the field of petroleum exploration and development, in particular to a tight reservoir petroleum charging simulation method and system.

Background technique

Tight reservoirs have the characteristics of tight lithology, low porosity and low permeability, low gas reservoir pressure coefficient, and low natural productivity. As an unconventional reservoir, it has great development difficulties and requirements. At present, although tight oil has been developed to a certain extent through horizontal wells and volume fracturing. However, due to the development of micro-nano pore throats in tight reservoirs that are different from conventional reservoirs, the mechanism of crude oil charging, migration and accumulation in micro-nano pore throats is still unclear, which limits the exploration of tight reservoirs to a certain extent. develop.

At present, the existing domestic research and its corresponding simulation experiments and simulation devices are mainly designed for conventional reservoirs, usually including a liquid supply system, through which crude oil is pumped under high pressure to study the accumulation process of oil and gas in the reservoir core. In fact, the hydrocarbon generation simulation studies of source rocks show that not only crude oil is produced in the hydrocarbon generation simulation products of source rocks, but also gases such as H ₂ O, H ₂ , CO ₂ and light hydrocarbons. The generated water and gas have a great impact on the charging and accumulation of crude oil. Especially in tight reservoirs, using the traditional high-pressure pumping fluid method basically cannot realize the effective accumulation of crude oil in tight reservoirs; moreover, it is difficult to completely simulate the crude oil generated by source rocks and its composition in the current liquid supply system commonly used for simulation Therefore, it is necessary to provide new methods and equipment for tight reservoirs to simulate the oil and its composition generated by source rocks, so as to guide the exploration and development of tight reservoirs.

Contents of the invention

The purpose of the present invention is to provide a tight reservoir oil filling simulation method and system, which can truly simulate the crude oil and its composition generated by source rocks, so as to guide the exploration and development of tight reservoirs.

Above-mentioned purpose of the present invention can adopt following technical scheme to realize:

A method for simulating oil charging in tight reservoirs, comprising:

Obtaining a first sample corresponding to the tight reservoir and a second sample corresponding to the target source rock respectively;

Pretreating the first sample and measuring the physical properties of the overburden and injecting formation water to obtain the first data;

performing total organic carbon, pyrolysis, and maturity measurements on the second sample, and performing an open-system hydrocarbon generation kinetics test on the second sample whose maturity is lower than a predetermined value, to obtain second information;

Determine the source-reservoir preparation relationship of the tight reservoir according to the logging data, the first data and the second data, and fill the first sample and the second sample according to the source-reservoir preparation relationship to obtain a simulated sample after filling ;

According to the burial history and thermal history of the formation, the current formation temperature and pressure, carry out a geological process constraint simulation experiment on the simulated sample;

Oil distribution measurement is carried out on the simulated sample to determine the oil distribution.

In a preferred embodiment, the second sample with a maturity lower than a predetermined value is a sample with a maturity lower than 0.6%.

In a preferred embodiment, the second data includes: activation energy and pre-exponential factor.

In a preferred embodiment, the second data is obtained by obtaining no less than two sets of hydrocarbon production curves through no less than two sets of tests with different heating rates, and calculating according to the Arrhenius equation.

In a preferred embodiment, the method for determining the distribution of oil comprises any one of the following:

Raman spectroscopy, pyrolysis analysis and NMR.

In a preferred embodiment, the formation permeability of the tight reservoir is less than 0.1 mD;

Correspondingly, performing pretreatment on the first sample includes: performing oil washing treatment on the first sample until the oil washing liquid no longer has fluorescence.

In a preferred embodiment, the source-storage configuration relationship includes:

Bottom-born and upper-storage type, upper-growth and lower-storage type, and interlayer type.

In a preferred embodiment, when performing a geological process constraint simulation experiment on the simulated sample, the constraint includes a heating rate.

In a preferred embodiment, before performing total organic carbon, pyrolysis and maturity determination on the second sample, it further includes: pulverizing the second sample to a predetermined mesh size.

A tight reservoir oil charging simulation system, including:

The temperature and pressure device is used to provide the temperature and pressure during the simulation experiment;

Fluid supply and discharge devices, including liquid supply pipeline equipment, liquid collection pipeline equipment and self-sealing and opening valves;

The equipment monitoring device is used to set the heating rate and pressure increasing rate and monitor the temperature and pressure in the device during the experiment;

The oil content measuring device is used to measure the distribution of oil.

In a preferred embodiment, the temperature and pressure device includes a heating device and an oil pressure device, wherein the maximum temperature that the heating device can reach is 550 degrees Celsius, and the maximum pressure that the oil pressure device can reach is 70 MPa.

The characteristics and advantages of the present invention are: through temperature and pressure devices, fluid supply and discharge devices, equipment monitoring devices, and oil monitoring devices, research on oil filling and accumulation in tight reservoirs is simple, practical, repeatable, and capable of Quantitative evaluation. Compared with the traditional measurement method, the present invention can realize the integration of hydrocarbon generation and tight reservoir oil charging, is more in line with geological conditions, and can truly simulate the oil generated by source rocks and its composition.

Description of drawings

Fig. 1 is a flow chart of the steps of a tight reservoir oil filling simulation method in the embodiment of the present application;

Fig. 2 is a structural schematic diagram of a tight reservoir oil filling simulation system in the embodiment of the present application;

Fig. 3 is a graph of conversion rate-temperature of hydrocarbon generation amount obtained after a simulation experiment based on the tight reservoir oil charging simulation method of the present application;

Fig. 4 is a curve diagram of hydrocarbon generation amount-temperature obtained after a simulation experiment is carried out according to the tight reservoir oil charging simulation method of the present application;

Fig. 5 is a histogram of hydrocarbon generation distribution-activation energy distribution obtained after a simulation experiment based on the tight reservoir oil charging simulation method of the present application;

Fig. 6 is a graph showing that the source-reservoir configuration relationship of tight reservoirs is bottom-grown core height-oil saturation;

Fig. 7 is a graph showing that the source-reservoir configuration relationship of tight reservoirs is interlayer core height-oil saturation;

Fig. 8 is a graph showing the source-reservoir configuration relationship of tight reservoirs as the top-grown core height-oil saturation.

detailed description

The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art Modifications to various equivalent forms of the present invention fall within the scope defined by the appended claims of the present application.

The method and system for simulating oil filling in tight reservoirs described in this application will be described in detail below with reference to the accompanying drawings. Fig. 1 is a flow chart of a method for simulating oil charging in tight reservoirs provided by an embodiment of the present application. Although the present application provides the method operation steps or device structure as shown in the following embodiments or drawings, more or less operation steps or module structures may be included in the method or device based on conventional or creative work . In steps or structures that do not logically have a necessary causal relationship, the execution order of these steps or the modular structure of the device is not limited to the execution order or modular structure provided in the embodiments of the present application. When the described method or module structure is executed in an actual device or terminal product, it can be executed sequentially or in parallel according to the method or module structure connection shown in the implementation mode or drawings (such as parallel processor or multi-threaded processing) environment).

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments, and is not intended to limit the application.

It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiment.

The invention provides a method and device for simulating oil filling in tight reservoirs, which can truly simulate crude oil generated by source rocks and its composition.

Please refer to FIG. 1 , a method for simulating oil filling in tight reservoirs provided in an embodiment of the present application may include the following steps.

Step S10: acquiring a first sample corresponding to the tight reservoir and a second sample corresponding to the target source rock;

Step S11: performing pretreatment on the first sample and measuring the physical properties of the overburden and injecting formation water to obtain the first data;

Step S12: performing total organic carbon, pyrolysis, and maturity measurements on the second sample, and performing an open-system hydrocarbon generation kinetics test on the second sample whose maturity is lower than a predetermined value, to obtain second data;

Step S13: Determine the source-storage composition relationship of the tight reservoir according to the logging data, the first data and the second data, and fill the first sample and the second sample according to the source-storage composition relationship, and obtain the filled simulated sample;

Step S14: According to the burial history and thermal history of the formation, the current formation temperature and pressure, conduct a geological process constraint simulation experiment on the simulated sample;

Step S15: Carry out oil distribution measurement on the simulated sample to determine the oil distribution.

In this embodiment, the research object is a tight reservoir, specifically, the formation permeability of the tight reservoir may be less than 0.1 mD.

In this embodiment, before performing the simulation experiment, the first sample corresponding to the tight reservoir and the second sample corresponding to the target source rock need to be obtained respectively.

Wherein, when obtaining the first sample, it is possible to collect the core at the predetermined position of the tight reservoir according to the data of the target area such as basin outcrop, logging data and seismic data, etc., and drill a plunger-shaped sample, thereby obtaining the described first sample.

Then, the first sample is pretreated. Specifically, the pretreatment may include washing the first sample with oil until the oil washing liquid no longer has fluorescence. Next, the pretreated first sample can be dried. Next, the overburden physical property test can be carried out on the pretreated first sample, which is filled with formation water, simulating that the first sample is in a real formation environment. Wherein, the first data may include parameters such as overburden porosity and permeability.

In this embodiment, when obtaining the second sample, the target area can be collected, such as the typical low-maturity source rock in the basin, crushed to a predetermined mesh, and then carried out for total organic carbon, pyrolysis and maturity measurement. The second sample whose degree is lower than the predetermined value is subjected to the hydrocarbon generation kinetics test of the open system to obtain the second data corresponding to the second sample.

Wherein, the low-maturity source rock may specifically be a source rock with a maturity lower than 0.6%. The source rock (source rock) is also called oil source rock, which is a rock that is rich in organic matter and produces and discharges oil and gas in large quantities. That is to say, a source rock is a rock that can produce or has produced mobile hydrocarbons. When the second sample is obtained, it may be in the shape of a column or a block, which is not specifically limited in this application. When parameter determination is required, the obtained sample can be pulverized to a predetermined mesh. The predetermined mesh number can be specifically determined according to the sample requirements for geochemical analysis and testing, for example, it can be 200 mesh, etc. Specifically, this application does not specifically limit it here.

In the specific measurement, the total organic carbon (TOC total organic carbon), hydrocarbon generation potential and maturity (Ro) can be tested respectively by using a carbon-sulfur analyzer, a pyrolysis analyzer and a microscope. Of course, other existing instruments can also be used for measurement, and this application does not make specific limitations here.

Among them, hydrocarbon generation potential refers to the maximum amount of organic matter in a certain volume or weight of source rock that can generate hydrocarbons under natural geological conditions. It includes two parts: the amount of hydrocarbons that have been generated so far and the remaining hydrocarbon generation potential that has not been converted. Its basic unit is kilogram (kg) or ton (t) or cubic meter (m ³ ). Organic carbon refers to the carbon present in organic matter in rocks. It does not include carbon in carbonate rocks, graphite. Usually expressed as a percentage of rock mass. In principle, the amount of organic matter in rocks should also include the total amount of all elements present in organic matter, such as H, O, N, and S.

In this embodiment, low-maturity source rock samples may be selected for open-system hydrocarbon generation kinetics analysis and testing to obtain second data. Specifically, the second data may include: activation energy (Ea) and pre-exponential factor (A). Wherein, the activation energy refers to the energy required for a molecule to change from a normal state to an active state where chemical reactions are likely to occur, which is called activation energy. (The activation energy in the Arrhenius formula is different from the activation energy derived from kinetics, also known as Arrhenius activation energy or empirical activation energy) The difference between the average energy of activated molecules and the average energy of reactant molecules is the activation energy. The pre-exponential factor A is derived from the Arrhenius formula k=A·exp(-Ea/RT), k, R, T, Ea are respectively the chemical reaction rate constant, the molar gas constant, the reaction temperature and the activation energy , where A is called the pre-exponential factor. It is a constant determined only by the nature of the reaction and has nothing to do with the reaction temperature and the concentration of substances in the system, and has the same dimension as k. A is one of the important kinetic parameters of the reaction. Specifically, the second data can be obtained by: obtaining no less than two sets of hydrocarbon production curves through no less than two sets of tests with different heating rates, and calculating according to the Arrhenius equation.

In this embodiment, the source-reservoir configuration relationship of the tight reservoir can be determined according to the logging data and core sample data including the first data and the second data, and simulated samples can be obtained according to the source-reservoir configuration relationship. Specifically, the source-reservoir configuration relationship refers to the positional relationship between the source rock and the reservoir, which may include: lower-generation upper-reservoir type, upper-generation lower-reservoir type, and interlayer type, that is, the source rock is on the lower reservoir layer, and the source rock is on the upper layer. Reservoir is below, mixed source rock and reservoir. Then, obtaining the simulated sample according to the source-storage preparation relationship may specifically be filling the first sample and the second sample according to the source-storage preparation relationship, and obtaining the simulation sample.

In this embodiment, after the simulated sample is obtained, a geological process constraint simulation experiment can be performed on the simulated sample according to the burial history and thermal history of the formation, and the current formation temperature and pressure.

The thermal history of a sedimentary basin mainly depends on two aspects, one is the change of heat flux in the basement of the basin, and the other is the nature and burial history of the sediments inside the basin. Due to the different geodynamic backgrounds and formation mechanisms of different types, the geodynamic models describing the tectonic evolution of different types of sedimentary basins are also different. Before carrying out the simulation experiment, the corresponding model can be determined according to the stratum burial history and thermal history of the target research basin.

In this embodiment, when performing a geological process constraint simulation experiment on the simulated sample, the constraint includes a heating rate. In addition, the boost rate and the like may also be included.

In this embodiment, according to the burial history and thermal history of the formation, the current formation temperature and pressure, the process of performing the geological process constraint simulation experiment on the simulated sample can be: The temperature rise rate and pressure rise rate are constrained to ensure that the pressure at equivalent maturity is consistent with the geological reality; the type of fluid added during the simulation process is configured according to the salinity of the formation water. After the experiment is over, tight reservoir samples after oil and gas filling can be obtained to provide samples for the next step of oil distribution determination.

Finally, oil distribution measurement is carried out on the simulated sample to determine the oil distribution. Wherein, the method for determining the oil distribution includes any one of the following: Raman spectroscopy, pyrolysis analysis and nuclear magnetic resonance. Certainly, the determination of the oil distribution can also be done in other ways, for example, qualitative analysis can be carried out by thin section, fluorescence and other methods according to the experimental requirements. Specifically, this application does not make specific limitations here.

Please refer to Fig. 2, the embodiment of the present application also provides a tight reservoir oil charging simulation system, which may include:

The temperature and pressure device 1 is used to provide the temperature and pressure during the simulation experiment;

Fluid supply and discharge device 2, which includes liquid supply pipeline equipment, liquid collection pipeline equipment and self-sealing and opening valves;

The equipment monitoring device 3 is used to set the heating rate, the pressure increasing rate and the temperature and pressure in the monitoring device during the experiment;

The oil content measuring device 4 is used for measuring the distribution of oil.

In this embodiment, the temperature and pressure device 1 includes heating equipment and hydraulic equipment. Wherein, the maximum temperature that the heating equipment can reach is 550 degrees Celsius. That is to say, the temperature range of the heating device is from room temperature to 550 degrees Celsius. Of course, the temperature range of the heating device can also be selected according to the needs of experiments, which is not specifically limited in this application. The maximum pressure that the hydraulic equipment can reach is 70 MPa. That is to say, the pressure range of the pressure equipment is from normal pressure to 70 MPa. Of course, the specific pressure range of the hydraulic equipment can be selected according to actual experimental requirements, and this application does not make specific limitations here.

In this embodiment, the fluid supply and discharge device 2 may include liquid supply pipeline equipment, liquid collection pipeline equipment, and self-sealing and opening valves, so as to meet experimental requirements such as formation water injection. Specifically, the specific connection and structure of the fluid supply and discharge device are not specifically limited in this application. On the whole, the two ends of the sample are connected to the liquid supply pipeline equipment and the liquid collection pipeline equipment. On, an opening valve can be provided, and a self-sealing structure can be provided at the end of the sample.

In this embodiment, the equipment monitoring device 3 may include temperature and pressure real-time monitoring equipment for real-time monitoring of changes in temperature and pressure of the system. In addition, the device monitoring device 3 may also include an alarm device when the pressure exceeds the design pressure of the material, which has higher safety performance.

In this embodiment, the oil content measurement device 4 can be selected according to the measurement method, which is not specifically limited in this application. Specifically, the measurement method may specifically include Raman spectroscopy, pyrolysis analysis, nuclear magnetic resonance, etc., and the oil content distribution can be quantitatively obtained through the above measurement methods. In this case, the oil content measuring device is a device corresponding to the method, for example, when the nuclear magnetic resonance method is used, the corresponding device is a nuclear magnetic resonance instrument. In addition, qualitative analysis methods can also be used according to experimental needs, and the oil content measuring device 4 can be omitted in this case.

In a specific application scenario, the tight reservoir oil charging simulation method and system of the present invention are used to measure the oil charging and accumulation of Chang 7 tight sandstone of the Triassic Yanchang Formation in the Ordos Basin. The hydrocarbon generation kinetic parameters and experimental heating quantities of low-mature source rocks can be seen in Fig. 3 to Fig. 5.

Among them, Fig. 3 is a graph of hydrocarbon generation conversion rate-temperature obtained after a simulation experiment based on a tight reservoir oil charging simulation method of the present application. The abscissa indicates the temperature during the simulation experiment, in degrees Celsius (°C); the ordinate indicates the conversion rate of hydrocarbon generation in the simulation experiment. There are three sets of curves in the figure, which are the conversion rate-temperature curves of hydrocarbon generation amount obtained at the heating rate of 10°C/min, 20°C/min and 30°C/min.

Among them, Fig. 4 is a graph of hydrocarbon generation amount-temperature obtained after a simulation experiment based on a tight reservoir oil charging simulation method in the present application. The abscissa indicates the temperature during the simulation experiment, in degrees Celsius (°C); the left ordinate indicates the amount of hydrocarbon generation, in mg/g (mg/g _TOC ); the right ordinate indicates the maturity, in percent (%). Wherein, the first curve 1A in Fig. 4 represents: maturity; the unit is: %; the second curve 1B represents: cumulative hydrocarbon generation amount, the unit is: mg/g.

Among them, Fig. 5 is a histogram of hydrocarbon generation distribution-activation energy distribution obtained after a simulation experiment based on the tight reservoir oil charging simulation method of the present application. The abscissa indicates the distribution of activation energy in kilojoules/mole (kj/mol); the ordinate indicates the distribution of hydrocarbon generation potential.

Through the simulation experiments described in this application, it is found that oil charging can still be achieved under the background of tight reservoirs, and the degree of oil charging is controlled by the distance from the source rock. Please refer to Figure 6 to Figure 8 for the experimental results.

Among them, Fig. 6 is a graph showing the source-reservoir configuration relationship of tight reservoirs as the bottom-grown core height-oil saturation. When the reservoir-source configuration relationship is bottom-grown, that is, the bottom is the source rock, and the top is the reservoir. The ordinate in the figure represents the core height in centimeters (cm); the abscissa represents the oil saturation.

Fig. 7 is a graph showing the source-reservoir configuration relationship of tight reservoirs as interlayer core height-oil saturation. When the reservoir-source configuration relationship is an interlayer type, that is, the source rock and the reservoir are mixed. The ordinate in the figure represents the core height in centimeters (cm); the abscissa represents the oil saturation.

Fig. 8 is a graph showing the source-reservoir configuration relationship of tight reservoirs as the top-grown core height-oil saturation. When the reservoir-source configuration relationship is the apical type, that is, the upper layer is the source rock and the lower layer is the reservoir layer. The ordinate in the figure represents the core height in centimeters (cm); the abscissa represents the oil saturation.

The tight reservoir oil accumulation simulation method and device provided in the embodiments of the present invention use temperature and pressure devices, fluid supply and discharge devices, and equipment monitoring devices to carry out research on oil charging and accumulation in tight reservoirs. The operation is simple and practical, Good repeatability and quantitative evaluation. Compared with the traditional measuring method, the present invention can realize quantitative and qualitative determination of oil charging and accumulation in tight reservoirs under the constraint of variable geological process, and has obvious advantages.

The above-mentioned implementations in this specification are described in a progressive manner, the same and similar parts of the implementations may be referred to each other, and each implementation focuses on the differences from other implementations.

The above descriptions are only a few implementations of the present invention. Although the disclosed implementations of the present invention are as above, the content described is only the implementations adopted for the convenience of understanding the present invention, and is not intended to limit the present invention. Any person skilled in the technical field to which the present invention belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention is Still, the scope defined by the appended claims shall prevail.

Claims (11)

1. a kind of compact reservoir oil charging analogy method, it is characterised in that including：

The first sample corresponding with compact reservoir and the second sample corresponding with target hydrocarbon source rock are obtained respectively；

First sample is pre-processed and is carried out to cover pressure physical property measurement and note stratum water, obtained the first data；

Carry out total organic carbon, pyrolysis and maturity to second sample to determine, the second sample to maturity less than predetermined value The hydrocarbon-generating dynamics test of open system is carried out, the second data is obtained；

According to well-log information, first data and the second data determine the compact reservoir source store up preparation relation, and according to Source storage preparation relation filling the first sample and second sample, the analog sample after being loaded；

According to stratum buried history and thermal history, formation temperature and pressure, geological process constraint mould is carried out to the analog sample now Draft experiment；

Oil measure of spread is carried out to the analog sample, oil distribution situation is determined.

2. the method for claim 1, it is characterised in that the maturity is maturity less than the second sample of predetermined value Sample less than 0.6%.

3. the method for claim 1, it is characterised in that second data includes：Activation energy and pre-exponential factor.

4. the method for claim 1, it is characterised in that second data by：By no less than two groups of different heatings The test of speed is obtained and is no less than two groups of product hydrocarbon curves, and is calculated according to Arrhenius equation.

5. the method for claim 1, it is characterised in that the method for the oil measure of spread include it is following in it is any It is a kind of：

Raman spectrum, pyrolysis analysis and nuclear magnetic resonance method.

6. the method for claim 1, it is characterised in that the in-place permeability of the compact reservoir is less than 0.1 millidarcy；

Accordingly, carrying out pretreatment to first sample includes：Washing oil treatment is carried out to first sample, to washing oil liquid There is no fluorescence.

7. the method for claim 1, it is characterised in that the source storage configuration relation includes：

Down mountainalgorithm type, on give birth to storage type and sandwich type.

8. the method for claim 1, it is characterised in that geological process constraint simulated experiment is carried out to the analog sample In, the constraint includes heating rate.

9. the method for claim 1, it is characterised in that total organic carbon, pyrolysis and ripe are carried out to second sample Before degree is determined, also include：By second sample comminution treatment, predetermined mesh number is crushed to.

10. a kind of compact reservoir oil charging simulation system, it is characterised in that including：

Temperature, pressure device, for providing the temperature and pressure during simulated experiment；

Fluid supply and discharge device, it includes feed flow line equipment, liquid collecting tube line equipment and self sealss and Open valve；

Monitoring of equipment device, for setting the heating rate in experimentation, rate of pressure rise and temperature, pressure in monitoring device；

Oil-containing determines device, the distribution situation for determining oil.

11. systems as claimed in claim 10, it is characterised in that the temperature, pressure device includes that firing equipment and oil pressure set It is standby, wherein, the maximum temperature that the firing equipment can reach is 550 degrees Celsius, the maximum pressure that the oil pressure unit can reach It is 70 MPas.