CN109142150A

CN109142150A - Crude oil fluidity detection method and device

Info

Publication number: CN109142150A
Application number: CN201811056698.3A
Authority: CN
Inventors: 丁彬; 罗健辉; 耿向飞; 王平美; 彭宝亮; 贾辰; 王小聪
Original assignee: China Petroleum and Natural Gas Co Ltd
Current assignee: China Petroleum and Natural Gas Co Ltd
Priority date: 2018-09-11
Filing date: 2018-09-11
Publication date: 2019-01-04
Anticipated expiration: 2038-09-11
Also published as: CN109142150B

Abstract

The present invention provides a kind of crude oil fluidity detection method and device, method includes: the corresponding relationship between apparent viscosity and crude oil temperature according to each quasi-oil in liquid condition, and, corresponding relationship between the proton spin relaxation signals amount and crude oil temperature of all kinds of crude oil, establish crude oil apparent viscosity database, wherein, the apparent viscosity database is used to store the corresponding relationship between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount；Detect proton spin relaxation signals amount of the target crude oil under condition of different temperatures, wherein target crude oil is in liquid, solid or colloidal state；According to proton spin relaxation signals amount of the target crude oil under condition of different temperatures, apparent viscosity of the target crude oil under condition of different temperatures is determined in the crude oil apparent viscosity database.The present invention can effectively improve the convenience and accuracy of crude oil fluidity detection, realize the lossless qualitative quantitative analysis to crude oil fluidity.

Description

Crude oil fluidity detection method and device

Technical field

The present invention relates to petroleum detection technique fields, and in particular to a kind of crude oil fluidity detection method and device.

Background technique

Crude oil is petroleum not through processing, is a kind of dark brown and with green fluorescence, viscous with special odor Consistence oily liquids, and crude oil can refer to the undressed petroleum of the types such as ordinary crude oils, crude oil with high solidifying point, viscous crude and super-viscous oil. In order to carry out more accurate to crude oil and reliably handle, evaluation is carried out to oil property before working process and is had become for petroleum Indispensable important step in industry, it is defeated all with important to crude oil production, collection especially to the fluidity evaluating of crude oil Directive significance.Due to crude oil mobility mainly by temperature, added fluidity improver and heavy crude thinner etc. because Element influences, and therefore, the detection method for the mobility of crude oil is mainly to judge its stream by measuring the apparent viscosity of crude oil The quality of dynamic property, that is, the apparent viscosity of crude oil is higher, then its mobility is poorer, conversely, the apparent viscosity of crude oil is lower, then its Mobility is better.

In the prior art, the mode for measuring crude oil fluidity is usually to directly adopt viscosimeter or rheometer to the table of crude oil It sees viscosity to be measured, test result is more accurate, is widely used.

But when directlying adopt the apparent viscosity progress crude oil fluidity detection of viscosimeter or rheometer to crude oil, if Under room temperature or low temperature, state levels off to solid or colloidal state for certain viscous crude or super-viscous oil, then can not such as rotate rheology There is large error in the test data uniformly sprawled on the cone-plate of instrument, and then will lead to former mobility, and crude oil is in different instruments On detection, what can also be detected to crude oil accurately have an impact, if carrying out heating treatment to above-mentioned viscous crude or super-viscous oil, can make The different components evaporation in crude oil is obtained, the accuracy of testing result still can be largely influenced, in addition, every time to crude oil When carrying out mobility-detected, requires to execute above-mentioned steps, also increase the time-consuming and complicated procedures of detection process.

Summary of the invention

For the problems of the prior art, the present invention provides a kind of crude oil fluidity detection method and device, can be effective The convenience and accuracy of crude oil fluidity detection are improved, and then can be realized the lossless qualitative/quantitative to crude oil fluidity Analysis.

In order to solve the above technical problems, the present invention the following technical schemes are provided:

In a first aspect, the present invention provides a kind of crude oil fluidity detection method, the crude oil fluidity detection method includes:

According to the corresponding relationship between the apparent viscosity and crude oil temperature of each quasi-oil in liquid condition, and, respectively Corresponding relationship between the proton spin relaxation signals amount and crude oil temperature of crude oil described in class establishes crude oil apparent viscosity data Library, wherein the apparent viscosity database is for storing between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount Corresponding relationship；

Detect proton spin relaxation signals amount of the target crude oil under condition of different temperatures, wherein at the target crude oil In liquid, solid or colloidal state；

And the proton spin relaxation signals amount according to the target crude oil under condition of different temperatures, in the crude oil Apparent viscosity of the target crude oil under condition of different temperatures is determined in apparent viscosity database.

In one embodiment, the basis is in pair between the apparent viscosity and crude oil temperature of each quasi-oil of liquid condition It should be related to, and, the corresponding relationship between the proton spin relaxation signals amount and crude oil temperature of all kinds of crude oil establishes crude oil Apparent viscosity database, wherein the apparent viscosity and proton that the crude oil apparent viscosity database is used to store each quasi-oil are certainly Revolve the corresponding relationship between relaxation signals amount, comprising:

Crude oil detecting step: when the crude oil of present kind is under liquid condition, the apparent viscosity of the crude oil is detected Corresponding relationship between crude oil temperature；

Detect the corresponding relationship between the proton spin relaxation signals amount of the crude oil and crude oil temperature；

According to the corresponding relationship between the apparent viscosity and crude oil temperature of the crude oil, and, the proton of the crude oil is certainly The corresponding relationship between relaxation signals amount and crude oil temperature is revolved, fitting obtains the apparent viscosity and proton spin relaxation of the crude oil Corresponding relationship between semaphore；

Different types of crude oil is replaced, and repeats the crude oil detecting step after each replacement, until obtaining Corresponding relationship between the apparent viscosity and proton spin relaxation signals amount of the crude oil of each type；

Corresponding relationship between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount is stored to the crude oil In apparent viscosity database.

Corresponding relationship in one embodiment, between the apparent viscosity and crude oil temperature of the detection crude oil, comprising:

Apparent viscosity of crude oil under the conditions of the first different temperature is measured respectively, wherein first temperature is The crude oil is set to be in the temperature under liquid condition；

And each crude oil temperature and corresponding apparent viscosity value according to the crude oil, it obtains for indicating State the first curve of corresponding relationship between the apparent viscosity of crude oil and crude oil temperature.

Corresponding pass in one embodiment, between the proton spin relaxation signals amount and crude oil temperature of the detection crude oil System, comprising:

It under default magnetic field strength, shakes pulse train using CPMG magnetic, measures the crude oil respectively different described the Proton spin relaxation signals amount under the conditions of one temperature；

And each crude oil temperature and corresponding proton spin relaxation signals magnitude according to the crude oil, it obtains For indicating the second curve of corresponding relationship between the proton spin relaxation signals amount of the crude oil and crude oil temperature.

In one embodiment, corresponding relationship between the apparent viscosity and crude oil temperature according to the crude oil, and, institute The corresponding relationship between the proton spin relaxation signals amount of crude oil and crude oil temperature is stated, fitting obtains the apparent viscosity of the crude oil With the corresponding relationship between proton spin relaxation signals amount, comprising:

Based on each first temperature, first curve and the second curve are fitted, obtained for indicating It is corresponding to state the third curve of corresponding relationship and the third curve between the apparent viscosity of crude oil and proton spin relaxation signals amount Equation with two unknowns, as the crude oil apparent viscosity and proton spin relaxation signals amount relationship be fitted formula.

In one embodiment, proton spin relaxation signals amount of the detection target crude oil under condition of different temperatures, comprising:

Under default magnetic field strength, using CPMG magnetic vibration pulse train, target crude oil is measured respectively in the second different temperature Proton spin relaxation signals amount under the conditions of degree, wherein the second temperature is that the target crude oil is made to be in liquid, solid or glue Temperature under body state.

In one embodiment, the proton spin relaxation signals amount according to the target crude oil under condition of different temperatures, Apparent viscosity of the target crude oil under condition of different temperatures is determined in the crude oil apparent viscosity database, comprising:

According to the type of the target crude oil, the apparent of the target crude oil is determined in the crude oil apparent viscosity database Corresponding relationship between viscosity and proton spin relaxation signals amount；

Proton spin relaxation signals amount of the target crude oil under condition of different temperatures is substituted into the apparent of the crude oil In the relationship fitting formula of viscosity and proton spin relaxation signals amount, it is apparent under condition of different temperatures to obtain the target crude oil Viscosity.

In one embodiment, contain paramagnet in the crude oil, and the paramagnet to the proton of the crude oil from Revolving relaxation signals influences less than 1%.

In one embodiment, the default magnetic field strength is 0.05T to 1.5T.

In one embodiment, the test scope of the apparent viscosity of the crude oil is 1mPas~10⁹mPa·s。

In one embodiment, the measurement range of first temperature is 20 DEG C~100 DEG C.

In one embodiment, the measurement range of the second temperature is -80 DEG C~100 DEG C.

Second aspect, the present invention provide a kind of crude oil fluidity detection device, and the crude oil fluidity detection device includes:

Apparent viscosity and proton spin relaxation signals magnitude relation determining module, for according to all kinds of originals for being in liquid condition Oil apparent viscosity and crude oil temperature between corresponding relationship, and, the proton spin relaxation signals amount of all kinds of crude oil with Corresponding relationship between crude oil temperature establishes crude oil apparent viscosity database, wherein the apparent viscosity database is for storing Corresponding relationship between the apparent viscosity and proton spin relaxation signals amount of each quasi-oil；

Solid-state crude oil proton spin relaxation signals measurement module, for detecting target crude oil under condition of different temperatures Proton spin relaxation signals amount, wherein the target crude oil is in liquid, solid or colloidal state；

Crude oil fluidity determining module, for the proton spin relaxation according to the target crude oil under condition of different temperatures Semaphore determines apparent viscosity of the target crude oil under condition of different temperatures in the crude oil apparent viscosity database.

In one embodiment, the apparent viscosity includes: with proton spin relaxation signals magnitude relation determining module

Crude oil detection sub-module, for executing crude oil detecting step, and the crude oil detection sub-module includes: apparent viscosity With crude oil temperature relation determination unit, proton spin relaxation signals amount and crude oil temperature relation determination unit and apparent viscosity and matter Sub- spin relaxation semaphore Relation acquisition unit；

The apparent viscosity and crude oil temperature relation determination unit, are under liquid condition for the crude oil in present kind When, detect the corresponding relationship between the apparent viscosity and crude oil temperature of the crude oil；

The proton spin relaxation signals amount and crude oil temperature relation determination unit, for detecting the proton of the crude oil certainly Revolve the corresponding relationship between relaxation signals amount and crude oil temperature；

The apparent viscosity and proton spin relaxation signals magnitude relation acquiring unit, for according to the apparent viscous of the crude oil Corresponding relationship between degree and crude oil temperature, and, between the proton spin relaxation signals amount and crude oil temperature of the crude oil Corresponding relationship, fitting obtain the corresponding relationship between the apparent viscosity of the crude oil and proton spin relaxation signals amount；

Crude oil replaces submodule, for replacing different types of crude oil, and the crude oil inspection is controlled after each replacement It surveys submodule and repeats the crude oil detecting step, until the apparent viscosity and proton spin that obtain the crude oil of each type are relaxed Corresponding relationship between the semaphore of Henan；

Data sub-module stored, for will be corresponding between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount Relationship is stored into the crude oil apparent viscosity database.

In one embodiment, the apparent viscosity includes: with crude oil temperature relation determination unit

Apparent viscosity under the conditions of first temperature measures subelement, for measuring the crude oil respectively in the first different temperature Apparent viscosity under the conditions of degree, wherein first temperature is the temperature for being in the crude oil under liquid condition；

First curve acquisition subelement, for according to each crude oil temperature of the crude oil and corresponding apparent viscosity Value obtains the first curve of corresponding relationship between the apparent viscosity and crude oil temperature for indicating the crude oil.

In one embodiment, the proton spin relaxation signals amount includes: with crude oil temperature relation determination unit

Proton spin relaxation signals under the conditions of first temperature measure quantum boxes, for answering under default magnetic field strength With CPMG magnetic vibration pulse train, proton spin relaxation letter of crude oil under the conditions of different first temperature is measured respectively Number amount；

Second curve acquisition subelement, for according to each crude oil temperature of the crude oil and corresponding proton spin Relaxation signals magnitude is obtained for indicating corresponding relationship between the proton spin relaxation signals amount of the crude oil and crude oil temperature Second curve.

In one embodiment, the apparent viscosity includes: with proton spin relaxation signals magnitude relation acquiring unit

Relationship is fitted formula and obtains subelement, bent to first curve and second for being based on each first temperature Line is fitted, and obtains of corresponding relationship between the apparent viscosity for indicating the crude oil and proton spin relaxation signals amount Three curves and the corresponding equation with two unknowns of third curve, apparent viscosity and proton spin relaxation signals as the crude oil The relationship of amount is fitted formula.

In one embodiment, the solid-state crude oil proton spin relaxation signals measurement module includes:

Proton spin relaxation signals phasor measurement unit under the conditions of second temperature, for applying under default magnetic field strength CPMG magnetic vibration pulse train, measures proton spin relaxation signals amount of target crude oil under the conditions of different second temperatures respectively, Wherein, the second temperature is the temperature made under the crude oil liquid, solid or colloidal state.

In one embodiment, the crude oil fluidity determining module includes:

Data transfer unit, for the type according to the target crude oil, in the crude oil apparent viscosity database really Corresponding relationship between the apparent viscosity and proton spin relaxation signals amount of the fixed target crude oil；

Apparent viscosity acquiring unit, for the proton spin relaxation signals by the target crude oil under condition of different temperatures Amount substitutes into the apparent viscosity of the crude oil and the relationship fitting formula of proton spin relaxation signals amount, obtains the target crude oil and exists Apparent viscosity under condition of different temperatures.

In one embodiment, the default magnetic field strength is 0.05T to 1.5T.

The third aspect, the present invention provides a kind of electronic equipment, including memory, processor and storage are on a memory and can The computer program run on a processor, the processor realize the step of crude oil fluidity detection method when executing described program Suddenly, comprising:

Fourth aspect, the present invention provide a kind of computer readable storage medium, are stored thereon with computer program, the calculating The step of crude oil fluidity detection method is realized when machine program is executed by processor, comprising:

5th aspect, the present invention provide a kind of crude oil fluidity detection system, wrap in the crude oil fluidity detection system It includes: the crude oil fluidity detection device, and, the rotation rheology communicated to connect respectively with the crude oil fluidity detection device Instrument, low-field nuclear magnetic resonance analyzer and low temperature thermostat bath；

The rotational rheometer is for measuring apparent viscosity of the crude oil under condition of different temperatures；

The low-field nuclear magnetic resonance analyzer is for detecting proton spin relaxation of the crude oil under condition of different temperatures Semaphore；

The low temperature thermostat bath is for controlling the crude oil temperature；

The crude oil fluidity detection device according to all kinds of crude oil that the rotational rheometer measurement obtains for existing Apparent viscosity under condition of different temperatures, and, all kinds of crude oil that the low-field nuclear magnetic resonance analyzer checks exist Proton spin relaxation signals amount under condition of different temperatures, according to the apparent viscosity and crude oil of each quasi-oil in liquid condition Corresponding relationship between temperature, and, it is corresponding between the proton spin relaxation signals amount and crude oil temperature of all kinds of crude oil Relationship establishes crude oil apparent viscosity database, wherein the apparent viscosity database is used to store the apparent viscosity of each quasi-oil With the corresponding relationship between proton spin relaxation signals amount；It is also used to proton of the target crude oil under condition of different temperatures certainly Relaxation signals amount is revolved, determines that the target crude oil is apparent under condition of different temperatures in the crude oil apparent viscosity database Viscosity.

As shown from the above technical solution, the present invention provides a kind of crude oil fluidity detection method, device, electronic equipment, deposits Storage media and crude oil fluidity detection system, crude oil fluidity detection method therein, by according to each in liquid condition Corresponding relationship between the apparent viscosity and crude oil temperature of quasi-oil, and, the proton spin relaxation signals of all kinds of crude oil Corresponding relationship between amount and crude oil temperature, establishes crude oil apparent viscosity database, wherein the apparent viscosity database is used for The corresponding relationship between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount is stored, all types of originals can be obtained in advance The flowing sex determination basis of oil, and can guarantee the accuracy on judgement basis, then by detection target crude oil in not equality of temperature Proton spin relaxation signals amount under the conditions of degree, wherein the target crude oil is in liquid, solid or colloidal state, Neng Goushi Now for a certain type crude oil fluidity contactless non-destructive testing, later by according to the target crude oil in difference Proton spin relaxation signals amount under the conditions of temperature determines the target crude oil not in the crude oil apparent viscosity database Apparent viscosity under the conditions of synthermal can efficiently and quickly determine that target crude oil is apparent viscous under condition of different temperatures Degree, and then crude oil fluidity can be determined by multiple apparent viscosity value, to effectively improve the accurate of crude oil fluidity detection Property, and realize lossless, the online qualitative quantitative analysis to crude oil fluidity.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention Some embodiments for those of ordinary skill in the art without creative efforts, can also basis These attached drawings obtain other attached drawings.

Fig. 1 is the configuration diagram of the crude oil fluidity detection device in the embodiment of the present invention.

Fig. 2 is the configuration diagram of the crude oil fluidity detection system in the embodiment of the present invention.

Fig. 3 is the interworking architecture schematic diagram of the server-side devices and ustomer premises access equipment in the embodiment of the present invention.

Fig. 4 is the flow diagram of the crude oil fluidity detection method in the embodiment of the present invention.

Fig. 5 be the embodiment of the present invention in crude oil fluidity detection method in step 100 flow diagram.

Fig. 6 be the embodiment of the present invention in crude oil fluidity detection method in step 101 flow diagram.

Fig. 7 be the embodiment of the present invention in crude oil fluidity detection method in step 102 flow diagram.

Fig. 8 be the embodiment of the present invention in crude oil fluidity detection method in step 300 flow diagram.

Fig. 9 is the flow diagram of the crude oil fluidity detection device in the embodiment of the present invention.

Figure 10 is apparent viscosity and proton spin relaxation signals in the crude oil fluidity detection device in the embodiment of the present invention The structural schematic diagram of magnitude relation determining module 10.

Figure 11 determines for apparent viscosity in the crude oil fluidity detection device in the embodiment of the present invention and crude oil temperature relationship The structural schematic diagram of unit 11.

Figure 12 is proton spin relaxation signals amount and crude oil temperature in the crude oil fluidity detection device in the embodiment of the present invention Spend the structural schematic diagram of relation determination unit 12.

Figure 13 is the structure of the crude oil fluidity detection device Central Plains oil mobility determining module 30 in the embodiment of the present invention Schematic diagram.

Figure 14 is the structural schematic diagram of the electronic equipment in the embodiment of the present invention.

Figure 15 is the schematic diagram of corresponding first curve of Venezuela's super-viscous oil in application example of the present invention.

Figure 16 is the schematic diagram of corresponding second curve of Venezuela's super-viscous oil in application example of the present invention.

Figure 17 is the schematic diagram of the corresponding third curve of Venezuela's super-viscous oil in application example of the present invention.

Figure 18 is the Xinjiang nine in application example of the present invention₇The schematic diagram of corresponding first curve of area's super-viscous oil.

Figure 19 is the Xinjiang nine in application example of the present invention₇The schematic diagram of corresponding second curve of area's super-viscous oil.

Figure 20 is the Xinjiang nine in application example of the present invention₇The schematic diagram of the corresponding third curve of area's super-viscous oil.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.

Since the mode of measurement crude oil fluidity in the prior art is usually to directly adopt viscosimeter or rheometer to original The apparent viscosity of oil is measured, and when so that crude oil being in solid or colloidal state, not can guarantee crude oil fluidity detection Convenience and accuracy.Therefore, the embodiment of the present invention provides a kind of crude oil fluidity detection method, by being in each quasi-oil When under liquid condition, the corresponding relationship between the apparent viscosity of all kinds of crude oil and proton spin relaxation signals amount, energy are determined Enough flowing sex determination bases for obtaining all types of crude oil in advance, and can guarantee the accuracy on judgement basis, then pass through inspection Survey proton spin relaxation signals amount of the target crude oil under liquid, solid or colloidal state under condition of different temperatures, energy It is enough to realize the contactless non-destructive testing for being directed to crude oil fluidity, later by according to the target crude oil in different temperatures item Proton spin relaxation signals amount under part determines the target crude oil in different temperatures in the crude oil apparent viscosity database Under the conditions of apparent viscosity, can efficiently and quickly determine a certain quasi-oil under condition of different temperatures in a non contact fashion Apparent viscosity, and then crude oil fluidity can be determined by multiple apparent viscosity value, to effectively improve crude oil fluidity inspection The accuracy of survey, and realize lossless, the online qualitative quantitative analysis to crude oil fluidity.

It is understood that the type of the crude oil is divided according to its constituent, generally in different producing area and not Same stratum, the type of the crude oil showed are also numerous and complicated numerous.For example, carbon, protium in the different crude oils sample obtained Or the content of other impurities is different, then above-mentioned crude oil sample is divided into different types.Wherein, impurity be generally sulphur, The composition such as nitrogen, oxygen and metal.

In a kind of application scenarios, the crude oil fluidity detection method is real using a kind of crude oil fluidity detection device Existing, which can be a kind of server-side devices A1.

In practical applications, referring to Fig. 1, the part for carrying out crude oil fluidity detection can be executed in server end, and should Server-side devices A1 is communicated to connect with rotational rheometer A2, low-field nuclear magnetic resonance analyzer A3 and low temperature thermostat bath A4 respectively, The server-side devices A1 is obtained from rotational rheometer A2, low-field nuclear magnetic resonance analyzer 13 and low temperature thermostat bath A4 for examining The corresponding data of survey, for example, server-side devices A1 control rotational rheometer A2 rotational rheometer measures all kinds of originals Apparent viscosity of the oil under condition of different temperatures, and receive apparent viscosity of each quasi-oil under condition of different temperatures；The clothes Business device end equipment A1 control low-field nuclear magnetic resonance analyzer A3 detects proton of all kinds of crude oil under condition of different temperatures certainly Relaxation signals amount is revolved, and receives proton spin relaxation signals amount of each quasi-oil under condition of different temperatures；The server end Equipment A1 controls low temperature thermostat bath A4 and changes all kinds of crude oil temperatures, and then, the server-side devices A1 is according to the rotation Turn the apparent viscosity of all kinds of crude oil that rheometer A2 measurement obtains under condition of different temperatures, and, the low field nuclear-magnetism Proton spin relaxation signals amount of all kinds of crude oil that resonance analytical instrument A3 is detected under condition of different temperatures determines each Corresponding relationship between the apparent viscosity and proton spin relaxation signals amount of crude oil described in class；It is also used to according to the target crude oil Proton spin relaxation signals amount under condition of different temperatures determines that the target is former in the crude oil apparent viscosity database Apparent viscosity of the oil under condition of different temperatures, wherein above-mentioned target crude oil may be at the shapes such as liquid, solid or colloidal state State.

In a kind of citing, the rotational rheometer A2 can be using the rotation of the model RS600 of Germany HAKKE production Rheometer, the low-field nuclear magnetic resonance analyzer A3 can be using the models of Shanghai Niu Mai Science and Technology Ltd. production The low-field nuclear magnetic resonance analyzer of MesoMR23-060H-HTHP, and its magnetic field strength is 0.48T, the low temperature thermostat bath A4 can Using the low temperature thermostat bath of the model DC-5010 of Ningbo Li Cheng Instrument Ltd. production.In addition, above-mentioned rotation rheology Instrument A2, the model of low-field nuclear magnetic resonance analyzer A3 and low temperature thermostat bath A4 and connection relationship are only a kind of citing, in reality In, above-mentioned low-field nuclear magnetic resonance analyzer A3 and low temperature thermostat bath A4 can be realized the integrated of the two function to be a kind of Device, the integrating device are also communicated to connect with the server-side devices A1.

In addition, the server-side devices A1, rotational rheometer A2, low-field nuclear magnetic resonance analyzer A3 and low temperature thermostat bath A4 also constitutes a kind of basic framework of crude oil fluidity detection system, referring to fig. 2, is based on the basic framework, can be in laboratory The middle mobility-detected experiment for completing target crude oil.It certainly, can also include other equipment in the experimental system, such as Temperature sensor etc., specifically can be according to the limit of the processing capacity and user's usage scenario of testing requirements and existing each equipment System etc. is selected.For example, user can carry out crude oil fluidity detection online, crude oil fluidity inspection can also be carried out offline It surveys.The application is not construed as limiting this.

Above-mentioned server-side devices A1 can also be communicated with a ustomer premises access equipment A5, referring to Fig. 3, the ustomer premises access equipment A5 It can be mobile phone, tablet computer, wearable device, desktop computer, all-in-one machine etc., or for carrying out crude oil fluidity detection APP, concrete form the application of ustomer premises access equipment A5 is not construed as limiting.

In order to enable the process flexibility of crude oil fluidity detection is higher, ustomer premises access equipment A5 can provide different information Input interface is selected for testing staff.Such as: the interface for visualizing selection can be provided for testing staff, be also possible to for detection Personnel provide editor's input interface.Testing staff open editting function software after, can according to actual experiment demand, if Set default magnetic field strength, the test scope of apparent viscosity and measurement range of test temperature etc..

In one or more embodiments of the application, it may be predetermined that the apparent viscosity and proton of a variety of quasi-oils are certainly The corresponding relationship between relaxation signals amount is revolved, and by pair between the apparent viscosity of these crude oil and proton spin relaxation signals amount It should be related to and be stored with the type of crude oil, when needing to detect a certain quasi-oil, it is only necessary to directly extract the apparent viscous of the crude oil Corresponding relationship between degree and proton spin relaxation signals amount, as shown in table 1, if crude oil type to be detected is now B3, then transferred in the crude oil apparent viscosity database prestored crude oil B3 it is corresponding its apparent viscosity and proton spin relaxation Corresponding relationship C3 between semaphore, if crude oil type to be detected is B5 now, and in crude oil apparent viscosity database In to find the crude oil type, then execute when crude oil B5 is under liquid condition, determine the apparent viscosity of the crude oil B5 The step of corresponding relationship between proton spin relaxation signals amount, and by crude oil B5 to storing the crude oil apparent viscosity number According in library.Wherein, the crude oil apparent viscosity database can be distributed data base.

Table 1

In order to more accurately and securely obtain crude oil fluidity testing result, it can specifically pass through the crude oil Mobility-detected device or system realizes crude oil fluidity detection process, although this application provides as the following examples or attached drawing Shown in method operating procedure or apparatus structure, but based on it is conventional or without creative labor in the method or device Less operating procedure or modular unit after may include more or part merging.There is no necessary causes and effects to close in logicality In the step of being or structure, the execution sequence of these steps or the modular structure of device are not limited to the embodiment of the present application or attached drawing institute The execution sequence or modular structure shown.Device in practice, server or the end product of the method or modular structure In application, can be according to embodiment or method shown in the drawings or modular structure carry out sequence execution or parallel execution (example Implementation environment such as the environment of parallel processor or multiple threads, even including distributed treatment, server cluster).

In order to effectively improve the accuracy of crude oil fluidity detection, and then it can be realized and the lossless of crude oil fluidity is determined Property/quantitative analysis, it is based on above-mentioned crude oil fluidity detection device or system, the present invention passes through following crude oil fluidity detection methods Specific embodiment be illustrated.

The embodiment of the present invention provides a kind of specific embodiment of crude oil fluidity detection method, referring to fig. 4, it is described from The crude oil fluidity detection method for revolving relaxation specifically includes following content:

Step 100: according in liquid condition each quasi-oil apparent viscosity and crude oil temperature between corresponding relationship, And the corresponding relationship between the proton spin relaxation signals amount and crude oil temperature of all kinds of crude oil, it establishes crude oil and apparently glues Spend database, wherein the apparent viscosity database is used to store the apparent viscosity and proton spin relaxation signals of each quasi-oil Corresponding relationship between amount.

It is understood that containing paramagnet in the crude oil, and the paramagnet is to the proton of the crude oil Spin relaxation effect of signals is less than 1%.

In step 100, the crude oil fluidity detection device or system of the spin relaxation are according to the rotational rheometer Apparent viscosity of the obtained all kinds of crude oil under condition of different temperatures is measured, and, the low-field nuclear magnetic resonance analyzer It checks proton spin relaxation signals amount of the obtained all kinds of crude oil under condition of different temperatures, determines all kinds of crude oil Corresponding relationship between apparent viscosity and proton spin relaxation signals amount.

It is understood that the apparent viscosity refers under certain speed gradient, with corresponding shear stress divided by cutting The resulting quotient of cutting speed rate.Apparent viscosity is possible to be also possible to be less than true viscosity greater than true viscosity, is to mobility quality One, work is opposite substantially to be compared.All absorption spectrums have its general character.When the energy of electromagnetic radiation is equal to sample molecule When certain energy level difference, electromagnetic radiation is can be absorbed in sample, transits to high level from low-lying level.Equally, in the electromagnetism spoke of this frequency Under the action of penetrating, sample molecule also can return to low-lying level from high level, release the electromagnetic radiation of the frequency.It is this by radiationless The approach that releases energy, core is called relaxation (relaxation), the core in upper state from the process that upper state returns to lower state Spin System will energy transmission give the process of the neighbouring similar magnetic core of lower state, referred to as spin-spin relaxation, also known as laterally Relaxation (transverse relaxation).This process is similar magnetic nuclear spin states energy exchange, does not cause nuclear-magnetism The change of gross energy.

Step 200: proton spin relaxation signals amount of the detection target crude oil under condition of different temperatures, wherein the mesh Mark crude oil is in liquid, solid or colloidal state.

In step 200, it is total to control the low field nuclear-magnetism for the crude oil fluidity detection device or system of the spin relaxation Target crude oil proton spin relaxation under condition of different temperatures of the vibration analysis instrument detection under liquid, solid or colloidal state Semaphore.It is specifically as follows and object to be measured crude oil is put into field coil, Automatic-searching centre frequency O1,900 pulse widths (P1) and 1800 pulse widths (P2).

Step 300: according to proton spin relaxation signals amount of the target crude oil under condition of different temperatures, in the original Oil meter, which is seen, determines apparent viscosity of the target crude oil under condition of different temperatures in viscosity data library.

In step 300, the crude oil fluidity detection device or system of the spin relaxation are according to the target crude oil Corresponding relationship between apparent viscosity and proton spin relaxation signals amount, and, the institute under liquid, solid or colloidal state Proton spin relaxation signals amount of the target crude oil under condition of different temperatures is stated, determines the target crude oil in condition of different temperatures Under apparent viscosity.

As can be seen from the above description, the embodiment of the present invention using in crude oil system containing Hydrogen Proton (¹H) this feature, is adopted With low-field nuclear magnetic resonance class and correlation analysis equipment, better according to mobility, then proton spin relaxation signals amount is stronger, laterally relaxes Also longer basic principle establishes crude oil proton spin relaxation letter in the case where being not directly contacted with crude oil system to Henan time T2 Number amount and the corresponding relationship of crude oil apparent viscosity, realize the online nondestructive analysis of crude oil fluidity.

In a specific embodiment, step 100 tool referring to Fig. 5, in crude oil fluidity detection method of the invention Body includes following content:

Crude oil detecting step B01: including specifically step 101 to 103.

Step 101: when target crude oil is under liquid condition, detect the crude oil apparent viscosity and crude oil temperature it Between corresponding relationship.

Step 102: detecting the corresponding relationship between the proton spin relaxation signals amount of the crude oil and crude oil temperature.

Step 103: according to the corresponding relationship between the apparent viscosity and crude oil temperature of the crude oil, and, the crude oil Proton spin relaxation signals amount and crude oil temperature between corresponding relationship, fitting obtain the apparent viscosity and proton of the crude oil Corresponding relationship between spin relaxation semaphore.

Step B02: different types of crude oil is replaced, and repeats the crude oil detecting step after each replacement B01, until obtaining the corresponding relationship between the apparent viscosity of the crude oil of each type and proton spin relaxation signals amount.

Step B03: by the corresponding relationship between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount store to In crude oil apparent viscosity database.

Wherein, referring to Fig. 6, the step 101 specifically includes following content:

Step 101a: apparent viscosity of crude oil under the conditions of the first different temperature is measured respectively, wherein described One temperature is the temperature for being in the crude oil under liquid condition.

It is understood that the measurement range of first temperature is 20 DEG C~100 DEG C, so that the crude oil is in liquid Temperature under state.For example, measuring table of the crude oil at 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C, 60 DEG C, 70 DEG C, 80 DEG C, 90 DEG C respectively See viscosity.

Step 101b: it according to each crude oil temperature of the crude oil and corresponding apparent viscosity value, obtains and is used for table Show the first curve of corresponding relationship between the apparent viscosity and crude oil temperature of the crude oil.

It is understood that the crude oil fluidity detection device or system can be described using crude oil temperature as abscissa Apparent viscosity is ordinate, marks apparent viscosity point of crude oil under the conditions of the first different temperature, and then fitting connection is each The apparent viscosity point, obtains first curve.At the same time it can also according to each apparent viscosity point, establish apparent viscosity with Dyadic formula between temperature.It in practical applications, is non-linear relation between the apparent viscosity and temperature, and described apparent viscous Degree is reduced with the raising of crude oil temperature.

Wherein, referring to Fig. 7, the step 102 specifically includes following content:

Step 102a: under default magnetic field strength, using CPMG magnetic vibration pulse train, the crude oil is measured respectively in difference First temperature under the conditions of proton spin relaxation signals amount.

It is understood that the range of the default magnetic field strength in 0.05T between 1.5T, and with 0.1T to 1.0T it Between be optimal.

Step 102b: according to each crude oil temperature of the crude oil and corresponding proton spin relaxation signals magnitude, Obtain the second curve for indicating corresponding relationship between the proton spin relaxation signals amount of the crude oil and crude oil temperature.

It is understood that the crude oil fluidity detection device or system can be described using crude oil temperature as abscissa Proton spin relaxation signals amount is ordinate, marks proton spin relaxation signals amount of crude oil under the conditions of the first different temperature Point, then fitting connects each proton spin relaxation signals amount point, obtains second curve.At the same time it can also basis Each proton spin relaxation signals amount point, establishes the dyadic formula between proton spin relaxation signals amount and temperature.Actually answering It is linear relationship between the proton spin relaxation signals amount and temperature, and the proton spin relaxation signals amount is with original in The raising of oil temperature and increase.

Wherein, the step 103 specifically includes following content:

Step 103a: it is based on each first temperature, first curve and the second curve are fitted, used The third curve and the third of corresponding relationship between the apparent viscosity and proton spin relaxation signals amount for indicating the crude oil The corresponding equation with two unknowns of curve is fitted formula as the apparent viscosity of the crude oil and the relationship of proton spin relaxation signals amount.

In step 103a, to first curve and the second curve be fitted specifically can using Origin or Excel is fitted the first curve and the second curve.It for example, can be in a manner of carrying out curve fitting using Excel It is real by the modes such as addition smoothed curve, linear, index, power, multinomial (such as conic section, cubic curve) and logistic fit It is existing.

Similar to step 102a, the step 200 in crude oil fluidity detection method of the invention specifically includes following content:

Step 201: under default magnetic field strength, using CPMG magnetic vibration pulse train, measuring target crude oil respectively in difference Second temperature under the conditions of proton spin relaxation signals amount, wherein the second temperature be make the target crude oil be in liquid, Temperature under solid or colloidal state.

It is understood that the measurement range of the second temperature is -80 DEG C~100 DEG C, so that at the target crude oil Temperature under liquid, solid or colloidal state, for example, the target crude oil can be measured respectively in 90 DEG C, 80 DEG C, 70 DEG C, 60 DEG C, 50 DEG C, 40 DEG C, 30 DEG C, 20 DEG C, 10 DEG C, the proton spin relaxation signals amount at 0 DEG C and -10 DEG C.

In order to further increase the detection efficiency and accuracy of crude oil fluidity detection, referring to Fig. 8, crude stream of the invention Step 300 in dynamic property detection method specifically includes following content:

Step 301: according to the type of the target crude oil, determining that the target is former in the crude oil apparent viscosity database Corresponding relationship between the apparent viscosity and proton spin relaxation signals amount of oil.

Step 302: proton spin relaxation signals amount of the target crude oil under condition of different temperatures is substituted into the original In the apparent viscosity of oil and the relationship fitting formula of proton spin relaxation signals amount, the target crude oil is obtained in condition of different temperatures Under apparent viscosity.

As can be seen from the above description, the crude oil fluidity detection method in the embodiment of the present invention, by being in liquid in crude oil Under body state, determines the corresponding relationship between the apparent viscosity of the crude oil and proton spin relaxation signals amount, can obtain in advance The flowing sex determination basis of all types of crude oil is taken, and can guarantee the accuracy on judgement basis, liquid is then in by detection Proton spin relaxation signals amount of the crude oil under condition of different temperatures under body, solid or colloidal state, can be realized needle Contactless non-destructive testing to crude oil fluidity passes through the apparent viscosity and proton spin relaxation according to the crude oil later Corresponding relationship between semaphore, and, the crude oil under liquid, solid or colloidal state is under condition of different temperatures Proton spin relaxation signals amount, determine the crude oil under liquid, solid or the colloidal state under condition of different temperatures Apparent viscosity, can efficiently and quickly determine apparent viscosity of the crude oil under condition of different temperatures, and then can be by this Multiple apparent viscosity values determine crude oil fluidity, to effectively improve the accuracy of crude oil fluidity detection, and realize to crude stream Lossless, the online qualitative quantitative analysis of dynamic property.

In order to realize that the present invention also provides one kind can be realized the crude stream to the online qualitative quantitative analysis of crude oil The crude oil fluidity detection device of the full content of dynamic property detection method, referring to Fig. 9, the crude oil fluidity detection device is specific Including following content:

Apparent viscosity and proton spin relaxation signals magnitude relation determining module 10, for according to all kinds of in liquid condition Corresponding relationship between the apparent viscosity and crude oil temperature of crude oil, and, the proton spin relaxation signals amount of all kinds of crude oil Corresponding relationship between crude oil temperature establishes crude oil apparent viscosity database, wherein the apparent viscosity database is for depositing Store up the corresponding relationship between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount.

Solid-state crude oil proton spin relaxation signals measurement module 20, for detecting target crude oil under condition of different temperatures Proton spin relaxation signals amount, wherein the target crude oil is in liquid, solid or colloidal state.

Crude oil fluidity determining module 30, for being relaxed according to proton spin of the target crude oil under condition of different temperatures Henan semaphore determines that the target crude oil is apparent viscous under condition of different temperatures in the crude oil apparent viscosity database Degree.

The embodiment of crude oil fluidity detection device provided by the present application specifically can be used for executing in above-described embodiment The process flow of the embodiment of crude oil fluidity detection method, details are not described herein for function, is referred to above method implementation The detailed description of example.

As can be seen from the above description, the crude oil fluidity detection device in the embodiment of the present invention, by each quasi-oil When under liquid condition, the corresponding relationship between the apparent viscosity of all kinds of crude oil and proton spin relaxation signals amount is determined, The flowing sex determination basis of all types of crude oil can be obtained in advance, and can guarantee the accuracy on judgement basis, then passed through Proton spin relaxation signals amount of target crude oil of the detection under liquid, solid or colloidal state under condition of different temperatures, It can be realized the contactless non-destructive testing for crude oil fluidity, pass through the apparent viscosity and matter according to the crude oil later Corresponding relationship between sub- spin relaxation semaphore, and, the target crude oil under liquid, solid or colloidal state exists Proton spin relaxation signals amount under condition of different temperatures determines that the target under liquid, solid or colloidal state is former Apparent viscosity of the oil under condition of different temperatures can efficiently and quickly determine table of the target crude oil under condition of different temperatures Viscosity is seen, and then can determine crude oil fluidity by multiple apparent viscosity value, to effectively improve the inspection of target crude oil mobility The accuracy of survey, and realize lossless, the online qualitative quantitative analysis to target crude oil mobility.

In a specific embodiment, the apparent viscosity referring to Figure 10, in the crude oil fluidity detection device Following content is specifically included with proton spin relaxation signals magnitude relation determining module 10:

Crude oil detection sub-module B1, for executing crude oil detecting step, and the crude oil detection sub-module B1 includes: apparent Viscosity is with crude oil temperature relation determination unit 11, proton spin relaxation signals amount and crude oil temperature relation determination unit 12 and apparently Viscosity and proton spin relaxation signals magnitude relation acquiring unit 13.Apparent viscosity and crude oil temperature relation determination unit 11, are used for When target crude oil is under liquid condition, the corresponding relationship between the apparent viscosity and crude oil temperature of the crude oil is detected；

Proton spin relaxation signals amount and crude oil temperature relation determination unit 12, for detecting the proton spin of the crude oil Corresponding relationship between relaxation signals amount and crude oil temperature；

Apparent viscosity and proton spin relaxation signals magnitude relation acquiring unit 13, for the apparent viscosity according to the crude oil Corresponding relationship between crude oil temperature, and, pair between the proton spin relaxation signals amount and crude oil temperature of the crude oil It should be related to, fitting obtains the corresponding relationship between the apparent viscosity of the crude oil and proton spin relaxation signals amount.

Crude oil replaces submodule B2, controls the crude oil for replacing different types of crude oil, and after each replacement Detection sub-module repeats the crude oil detecting step, until obtaining the apparent viscosity and proton spin of the crude oil of each type Corresponding relationship between relaxation signals amount.

Data sub-module stored B3, for by pair between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount It should be related to and store into crude oil apparent viscosity database.

In the foregoing description, referring to Figure 11, the apparent viscosity specifically includes with crude oil temperature relation determination unit 11 Following content:

Apparent viscosity under the conditions of first temperature measures subelement 11a, for measuring the crude oil respectively different the Apparent viscosity under the conditions of one temperature, wherein first temperature is the temperature for being in the crude oil under liquid condition.

First curve acquisition subelement 11b, for according to each crude oil temperature of the crude oil and corresponding apparent Viscosity number obtains the first curve of corresponding relationship between the apparent viscosity and crude oil temperature for indicating the crude oil.

In the foregoing description, referring to Figure 12, the proton spin relaxation signals amount and crude oil temperature relation determination unit 12 Include:

Proton spin relaxation signals under the conditions of first temperature measure quantum boxes 12a, are used under default magnetic field strength, Using CPMG magnetic vibration pulse train, proton spin relaxation of crude oil under the conditions of different first temperature is measured respectively Semaphore.

Second curve acquisition subelement 12b, for each crude oil temperature and corresponding proton according to the crude oil Spin relaxation signal quantity is obtained for indicating corresponding pass between the proton spin relaxation signals amount of the crude oil and crude oil temperature Second curve of system.

In the foregoing description, the apparent viscosity specifically includes with proton spin relaxation signals magnitude relation acquiring unit 13 Following content:

Relationship is fitted formula and obtains subelement 13a, for being based on each first temperature, to first curve and second Curve is fitted, and obtains corresponding relationship between the apparent viscosity for indicating the crude oil and proton spin relaxation signals amount Third curve and the corresponding equation with two unknowns of third curve, apparent viscosity and proton spin relaxation as the crude oil are believed Number amount relationship be fitted formula.

Quantum boxes 12a, the first temperature of the invention are measured similar to the proton spin relaxation signals under the conditions of the first temperature Proton spin relaxation signals under the conditions of degree measure quantum boxes 20 and specifically include following content:

Proton spin relaxation signals phasor measurement unit 21 under the conditions of second temperature, for answering under default magnetic field strength With CPMG magnetic vibration pulse train, proton spin relaxation signals of target crude oil under the conditions of different second temperatures are measured respectively Amount, wherein the second temperature is the temperature for being in the crude oil under liquid, solid or colloidal state.

In order to further increase the detection efficiency and accuracy of crude oil fluidity detection, referring to Figure 13, crude oil of the invention Crude oil fluidity determining module 30 in mobility-detected system specifically includes following content:

Data transfer unit 31, for the type according to the target crude oil, in the crude oil apparent viscosity database Determine the corresponding relationship between the apparent viscosity of the target crude oil and proton spin relaxation signals amount.

Apparent viscosity acquiring unit 32, for believing proton spin relaxation of the target crude oil under condition of different temperatures Number amount substitutes into the apparent viscosity of the crude oil and the relationship fitting formula of proton spin relaxation signals amount, obtains the target crude oil Apparent viscosity under condition of different temperatures.

As can be seen from the above description, the crude oil fluidity detection device in the embodiment of the present invention, utilizes crude oil system for the first time In containing Hydrogen Proton (¹H) this feature, better according to mobility using low-field nuclear magnetic resonance class and correlation analysis equipment, then matter Sub- spin relaxation semaphore is stronger, lateral relaxation time T2 also longer basic principle, in the feelings for being not directly contacted with crude oil system Under condition, establish the corresponding relationship of crude oil proton spin relaxation signals amount and crude oil apparent viscosity, realize crude oil fluidity Line nondestructive analysis.

Embodiments herein also provides all to be walked in the crude oil fluidity detection method that can be realized in above-described embodiment The specific embodiment of rapid a kind of electronic equipment, referring to Figure 14, the electronic equipment specifically includes following content:

Processor (processor) 601, memory (memory) 602, communication interface (Communications Interface) 603 and bus 604；

Wherein, the processor 601, memory 602, communication interface 603 complete mutual lead to by the bus 604 Letter；The communication interface 603 is for realizing between crude oil fluidity detection device/relevant devices such as system and user terminal Information transmission；

The processor 601 is used to call the computer program in the memory 602, and the processor executes the meter The Overall Steps in the crude oil fluidity detection method in above-described embodiment are realized when calculation machine program, for example, the processor is held Following step is realized when the row computer program:

As can be seen from the above description, the electronic equipment in the embodiment of the present invention, by being in liquid condition in each quasi-oil When lower, determine the corresponding relationship between the apparent viscosity of all kinds of crude oil and proton spin relaxation signals amount, can obtain in advance The flowing sex determination basis of all types of crude oil is taken, and can guarantee the accuracy on judgement basis, liquid is then in by detection Proton spin relaxation signals amount of the target crude oil under condition of different temperatures under body, solid or colloidal state, can be realized needle Contactless non-destructive testing to target crude oil mobility, later by according to the target crude oil under condition of different temperatures Proton spin relaxation signals amount, determine the target crude oil in condition of different temperatures in the crude oil apparent viscosity database Under apparent viscosity, can efficiently and quickly determine apparent viscosity of the crude oil under condition of different temperatures, and then can pass through Multiple apparent viscosity value determines crude oil fluidity, to effectively improve the accuracy of crude oil fluidity detection, and realizes to crude oil Lossless, the online qualitative quantitative analysis of mobility.

Embodiments herein also provides all to be walked in the crude oil fluidity detection method that can be realized in above-described embodiment A kind of rapid computer readable storage medium is stored with computer program on the computer readable storage medium, the computer The Overall Steps of the crude oil fluidity detection method in above-described embodiment are realized when program is executed by processor, for example, the place Reason device realizes following step when executing the computer program:

As can be seen from the above description, the computer readable storage medium in the embodiment of the present invention, by each quasi-oil When under liquid condition, the corresponding relationship between the apparent viscosity of all kinds of crude oil and proton spin relaxation signals amount is determined, The flowing sex determination basis of all types of crude oil can be obtained in advance, and can guarantee the accuracy on judgement basis, then passed through Proton spin relaxation signals amount of target crude oil of the detection under liquid, solid or colloidal state under condition of different temperatures, Can be realized the contactless non-destructive testing for target crude oil mobility, later by according to the target crude oil in difference Proton spin relaxation signals amount under the conditions of temperature determines the target crude oil not in the crude oil apparent viscosity database Apparent viscosity under the conditions of synthermal can efficiently and quickly determine apparent viscosity of the crude oil under condition of different temperatures, into And crude oil fluidity can be determined by multiple apparent viscosity value, to effectively improve the accuracy of crude oil fluidity detection, and Realize lossless, the online qualitative quantitative analysis to crude oil fluidity.

Due to that since crude oil can not use water, can only be carried out with kerosene clearly in crude oil fluidity detection in the prior art It washes, workload and experimental cost is caused to greatly increase；And test process Central Plains oil systems must sufficiently, uniformly be contacted with instrument, Operate it is more difficult, such as certain super-viscous oils under room temperature or low temperature close to solid or colloid, utilize the cone-plate system of rotational rheometer When system carries out viscosity test, super-viscous oil can not uniformly be sprawled on cone-plate, cause test data error larger；And in temperature-rise period In, the different components in crude oil system can evaporate, and influence on experimental result very big.In addition, current all fluidity testing methods It is contact destructive testing method, sample can not be recycled.Therefore, embodiments herein is also provided and be can be realized The specific implementation of a kind of crude oil fluidity detection system of Overall Steps in crude oil fluidity detection method in above-described embodiment Mode, referring to fig. 2, the crude oil fluidity detection system specifically include following content:

The crude oil fluidity detection device is presented as server-side devices A1, and, respectively with the server-side devices Rotational rheometer A2 the low-field nuclear magnetic resonance analyzer A3 and low temperature thermostat bath A4 of A1 communication connection.

The rotational rheometer A2 is for measuring apparent viscosity of the crude oil under condition of different temperatures.

The low-field nuclear magnetic resonance analyzer A3 is used to detect proton spin of the crude oil under condition of different temperatures and relaxes Henan semaphore.

The low temperature thermostat bath A4 is for controlling the crude oil temperature.

The crude oil that server-side devices A1 is used to be obtained according to the rotational rheometer A2 measurement is in different temperatures item Apparent viscosity under part, and, the crude oil that the low-field nuclear magnetic resonance analyzer A3 is checked is in condition of different temperatures Under proton spin relaxation signals amount, determine between the apparent viscosity of the crude oil and proton spin relaxation signals amount it is corresponding pass System；The corresponding relationship being also used between the apparent viscosity and proton spin relaxation signals amount according to the crude oil, and, in solid Proton spin relaxation signals amount of the crude oil under condition of different temperatures under body or colloidal state determines and is in solid or glue Apparent viscosity of the crude oil under condition of different temperatures under body state.

As can be seen from the above description, the crude oil fluidity detection system in the embodiment of the present invention, by each quasi-oil When under liquid condition, the corresponding relationship between the apparent viscosity of all kinds of crude oil and proton spin relaxation signals amount is determined, The flowing sex determination basis of all types of crude oil can be obtained in advance, and can guarantee the accuracy on judgement basis, then passed through Proton spin relaxation signals amount of target crude oil of the detection under liquid, solid or colloidal state under condition of different temperatures, Can be realized the contactless non-destructive testing for target crude oil mobility, later by according to the target crude oil in difference Proton spin relaxation signals amount under the conditions of temperature determines the target crude oil not in the crude oil apparent viscosity database Apparent viscosity under the conditions of synthermal can efficiently and quickly determine apparent viscosity of the crude oil under condition of different temperatures, into And crude oil fluidity can be determined by multiple apparent viscosity value, to effectively improve the accuracy of crude oil fluidity detection, and Realize lossless, the online qualitative quantitative analysis to crude oil fluidity.

For further description books scheme, the present invention also provides execute original using the crude oil fluidity detection system The application example of oil mobility detection method, using containing Hydrogen Proton in crude oil system¹This feature of H, it is total using low field nuclear-magnetism Vibration analysis instrument, better according to mobility, then proton spin relaxation signals amount is stronger, and lateral relaxation time T2 is also longer substantially former Reason, in the case where being not directly contacted with crude oil system, realizes the online nondestructive analysis to crude oil system mobility, specifically includes Following content:

(1) selection can detecte Hydrogen Proton¹The instrument and equipment of H relaxation variation, under the conditions of determining magnetic field strength, selection CPMG pulse sequence tests crude oil proton spin relaxation signals total amount, and obtains lateral relaxation time T2 inversion chart.

(2) crude oil system to be measured is put into field coil, Automatic-searching centre frequency O1,900 pulse width P1 and 1800 pulse width P2；

(3) selection CPMG pulse sequence tests crude oil proton spin relaxation signals total amount, and obtains lateral relaxation time T2 Inversion chart.

(4) change experiment condition (such as: temperature), the apparent viscosity of crude oil system is made to change with mobility, according to The above method tests crude oil proton spin relaxation signals total amount under different experimental conditions, and obtains lateral relaxation time T2 inverting Figure.

Wherein, the crude oil system to be measured is necessary for homogeneously, and in crude oil system paramagnet to proton spin relaxation Effect of signals is less than 1%；The magnetic field strength range of the low field nmr analysis instrument is 0.48T, and special core holding unit uses Temperature is -80~100 DEG C；The crude oil temperature measurement range is -20~80 DEG C；The crude oil apparent viscosity range 100~ 10⁹mPa·s。

Wherein, concrete example one is as follows:

1 experimental section

1.1 laboratory apparatus and reagent

Rotational rheometer, RS600, German HAKKE；Low-field nuclear magnetic resonance analyzer, MesoMR23-060H-HTHP, magnetic field Intensity 0.48T, Shanghai Niu Mai Science and Technology Ltd.；Low temperature thermostat bath, DC-5010, Ningbo Li Cheng Instrument Ltd..

Experiment is Venezuela's super-viscous oil with crude oil.

The measurement of 1.2 Venezuela's super-viscous oil viscosity-temperature curves

Using rotational rheometer cone-plate test macro, Venezuela's super-viscous oil is measured respectively in 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C, 60 DEG C, 70 DEG C, 80 DEG C, the apparent viscosity at 90 DEG C, draw viscosity-temperature curve, i.e. the first curve, referring to Figure 15.For in committee Auspicious drawing super-viscous oil, rheometer test apparent viscosity section are as follows: 1~10⁵MPas, and be destructive testing.It can be seen by Figure 15 Out, temperature is higher, and super-viscous oil apparent viscosity is lower, and mobility is better.That is apparent viscosity y₁With temperature x₁Between corresponding relationship First fitting formula is y₁=1E+11x₁ ^-4.0589, and the first curve correlation coefficient R²=0.9915.

Proton spin relaxation is analyzed under 1.3 Venezuela's super-viscous oil different temperatures

(1) 3.8g Venezuela super-viscous oil is weighed at room temperature, is fitted into the vial that volume is 20mL, low field nuclear-magnetism is set The O1=327364Hz of analyzer, P1=15 μ s, P2=29 μ s, TE=0.3ms, NECH=8000.

(2) under the Parameter Conditions of step (1), respectively to Venezuela's super-viscous oil in 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C, 60 DEG C, carry out CPMG sequence test at 70 DEG C and 80 DEG C, obtain the relationship of proton spin relaxation signals amount and temperature, i.e., second is bent Line, referring to Figure 16.As seen from Figure 16, as the temperature rises, viscous crude apparent viscosity constantly reduces, mobility enhancing, thick The sub- spin relaxation semaphore of oil also gradually increases, i.e. proton spin relaxation signals amount y₂With temperature x₁Between the second fitting it is public Formula is y₂=390.75x₁- 2048.2, and the second curve correlation coefficient R²=0.9769.

(3) complex chart 15 and Figure 16 obtain 3.8g Venezuela super-viscous oil apparent viscosity and proton spin relaxation signals amount Relation curve, i.e. third curve, fitting obtains Venezuela's super-viscous oil apparent viscosity and proton spin relaxation calculation formula, ginseng See Figure 17.I.e. new proton spin relaxation signals amount x₃With apparent viscosity y₃Between third fitting formula be y₃=1E+20x₃ ^-3.7499, and third curve correlation coefficient R²=0.9488.

(4) the 3.8g Venezuela super-viscous oil in vial is cooled to 10 DEG C, 0 DEG C respectively, -10 DEG C and -15 DEG C, at this time Super-viscous oil is solid-state, can not measure apparent viscosity with rotational rheometer, measures proton spin relaxation using magnetic nuclear resonance analyzer Semaphore is respectively 2593,1583,1050 and 950, and it is apparent that crude oil at this temperature can be calculated by Figure 17 fitting formula Viscosity is respectively 1.57 × 10⁷、1.01×10⁸、4.69×10⁸With 6.82 × 10⁸MPas is solid forms, is realized pair Crude oil system qualitative/quantitative of mobility and apparent viscosity under condition of different temperatures is evaluated.

(5) after testing, without cleaning instrument, sample can be recycled.

Wherein, concrete example two is as follows:

2 experimental sections

2.1 laboratory apparatus and reagent

Experiment is Xinjiang nine with crude oil₇Area's super-viscous oil.

2.2 Xinjiang nine₇The measurement of area's super-viscous oil viscosity-temperature curve

Using rotational rheometer cone-plate test macro, Xinjiang nine is measured respectively₇Area's super-viscous oil is in 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C, 60 DEG C, 70 DEG C, the apparent viscosity at 80 DEG C, draw viscosity-temperature curve, i.e. the first curve, referring to Figure 18.For Xinjiang nine₇Area Super-viscous oil, rheometer test apparent viscosity section are as follows: 1~10⁵MPas, and be destructive testing.As seen from Figure 18, warm Degree is higher, and super-viscous oil apparent viscosity is lower, and mobility is better.That is apparent viscosity y₁With temperature x₁Between corresponding relationship first Fitting formula is y₁=9E+09x₁ ^-3.2617, and the first curve correlation coefficient R²=0.9532.

2.3 Xinjiang nine₇Proton spin relaxation is analyzed under area's super-viscous oil different temperatures

(1) Xinjiang 4.5g nine is weighed at room temperature₇Area's super-viscous oil is fitted into the vial that volume is 20mL, low field core is arranged The O1=327364Hz of magnetic analyzer, P1=15 μ s, P2=29 μ s, TE=0.3ms, NECH=8000.

(2) under the Parameter Conditions of step (1), respectively to Xinjiang nine₇Area's super-viscous oil 30 DEG C, 40 DEG C, 50 DEG C, 60 DEG C, CPMG sequence test is carried out at 70 DEG C and 80 DEG C, obtains the relationship of proton spin relaxation signals amount and temperature, i.e. the second curve, is joined See Figure 19.As seen from Figure 19, as the temperature rises, mobility enhances, the proton spin relaxation signals amount of super-viscous oil by It is cumulative to add.That is proton spin relaxation signals amount y₂With temperature x₁Between the second fitting formula be y₂=359.27x₁+ 991.87, And the second curve correlation coefficient R²=0.9741.

(3) Xinjiang 4.5g nine can be obtained in complex chart 18 and Figure 19₇Area's super-viscous oil apparent viscosity and proton spin relaxation signals The relation curve of amount, fitting obtain Xinjiang nine₇The calculating corresponding with proton spin relaxation third curve of area's super-viscous oil apparent viscosity Formula, the third curve referring to fig. 20.I.e. new proton spin relaxation signals amount x₃With apparent viscosity y₃Between third fitting Formula is y₃=0.004x₃ ²-20.801x₃+ 295496, and third curve correlation coefficient R²=0.9754.

(4) by the Xinjiang 4.5g nine in vial₇Area's super-viscous oil is cooled to 20 DEG C, 10 DEG C, 0 DEG C and -10 DEG C respectively, at this time Super-viscous oil is substantially solid, with rotational rheometer can not Accurate Determining apparent viscosity, proton is measured using magnetic nuclear resonance analyzer Spin relaxation semaphore is respectively 8531,7912,2100 and 1050, can be counted by the corresponding fitting formula of third curve of Figure 20 It is respectively 1.47 × 10 that calculation, which obtains crude oil apparent viscosity at this temperature,⁵、1.56×10⁵、2.53×10⁵With 2.74 × 10⁵MPas is solid forms, realizes that mobility and apparent viscosity are determined under condition of different temperatures to crude oil system Property/quantitative assessment.

(5) after testing, without cleaning instrument, sample can be recycled.

The experimental result of comprehensive analysis concrete example one and concrete example two, it can be deduced that, for the mobility of super-viscous oil, Low-field nuclear magnetic resonance analyzer can be used, the analysis of proton spin relaxation is carried out, semaphore is stronger, then illustrate that mobility is better, This method crude oil apparent viscosity test scope are as follows: 1~10⁹MPas, and it is not directly contacted with crude oil system to be measured, it can be used for common Crude oil, crude oil with high solidifying point, viscous crude/super-viscous oil mobility and apparent viscosity lossless qualitative/quantitative evaluation analysis online, and can by Line test evaluation viscous crude and high solidifying oily viscosity reduction, pour point depression technical effect.

All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for hardware+ For program class embodiment, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to side The part of method embodiment illustrates.

It is above-mentioned that this specification specific embodiment is described.Other embodiments are in the scope of the appended claims It is interior.In some cases, the movement recorded in detail in the claims or step can be come according to the sequence being different from embodiment It executes and desired result still may be implemented.In addition, process depicted in the drawing not necessarily require show it is specific suitable Sequence or consecutive order are just able to achieve desired result.In some embodiments, multitasking and parallel processing be also can With or may be advantageous.

Although this application provides the method operating procedure as described in embodiment or flow chart, based on conventional or noninvasive The labour for the property made may include more or less operating procedure.The step of enumerating in embodiment sequence is only numerous steps One of execution sequence mode, does not represent and unique executes sequence.It, can when device or client production in practice executes To execute or parallel execute (such as at parallel processor or multithreading according to embodiment or method shown in the drawings sequence The environment of reason).

System, device, module or the unit that above-described embodiment illustrates can specifically realize by computer chip or entity, Or it is realized by the product with certain function.It is a kind of typically to realize that equipment is computer.Specifically, computer for example may be used Think personal computer, laptop computer, vehicle-mounted human-computer interaction device, cellular phone, camera phone, smart phone, individual Digital assistants, media player, navigation equipment, electronic mail equipment, game console, tablet computer, wearable device or The combination of any equipment in these equipment of person.

Although this specification embodiment provides the method operating procedure as described in embodiment or flow chart, based on conventional It may include either more or less operating procedure without creative means.The step of being enumerated in embodiment sequence be only One of numerous step execution sequence mode does not represent and unique executes sequence.Device or end product in practice is held When row, can be executed according to embodiment or method shown in the drawings sequence or it is parallel execute (such as parallel processor or The environment of multiple threads, even distributed data processing environment).The terms "include", "comprise" or its any other change Body is intended to non-exclusive inclusion, so that process, method, product or equipment including a series of elements are not only wrapped Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, product Or the element that equipment is intrinsic.In the absence of more restrictions, being not precluded is including process, the side of the element There is also other identical or equivalent elements in method, product or equipment.

For convenience of description, it is divided into various modules when description apparatus above with function to describe respectively.Certainly, implementing this The function of each module can be realized in the same or multiple software and or hardware when specification embodiment, it can also be by reality Show the module of same function by the combination realization etc. of multiple submodule or subelement.Installation practice described above is only Schematically, for example, the division of the unit, only a kind of logical function partition, can there is other draw in actual implementation The mode of dividing, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored, Or it does not execute.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be by one The indirect coupling or communication connection of a little interfaces, device or unit can be electrical property, mechanical or other forms.

It is also known in the art that other than realizing controller in a manner of pure computer readable program code, it is complete Entirely can by by method and step carry out programming in logic come so that controller with logic gate, switch, specific integrated circuit, programmable Logic controller realizes identical function with the form for being embedded in microcontroller etc..Therefore this controller is considered one kind Hardware component, and the structure that the device for realizing various functions that its inside includes can also be considered as in hardware component.Or Person even, can will be considered as realizing the device of various functions either the software module of implementation method can be hardware again Structure in component.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net Network interface and memory.

Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/or The forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable medium Example.

Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data. The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM), Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.

It will be understood by those skilled in the art that the embodiment of this specification can provide as the production of method, system or computer program Product.Therefore, in terms of this specification embodiment can be used complete hardware embodiment, complete software embodiment or combine software and hardware Embodiment form.Moreover, it wherein includes computer available programs that this specification embodiment, which can be used in one or more, Implement in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of code The form of computer program product.

This specification embodiment can describe in the general context of computer-executable instructions executed by a computer, Such as program module.Generally, program module includes routines performing specific tasks or implementing specific abstract data types, journey Sequence, object, component, data structure etc..This specification embodiment can also be practiced in a distributed computing environment, in these points Cloth calculates in environment, by executing task by the connected remote processing devices of communication network.In distributed computing ring In border, program module can be located in the local and remote computer storage media including storage equipment.

All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method Part explanation.In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", The description of " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, structure, material Or feature is contained at least one embodiment or example of this specification embodiment.In the present specification, to above-mentioned term Schematic representation be necessarily directed to identical embodiment or example.Moreover, description specific features, structure, material or Person's feature may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, in not conflicting feelings Under condition, those skilled in the art by different embodiments or examples described in this specification and different embodiment or can show The feature of example is combined.

The foregoing is merely the embodiments of this specification embodiment, are not limited to this specification embodiment.It is right For those skilled in the art, this specification embodiment can have various modifications and variations.It is all in this specification embodiment Any modification, equivalent replacement, improvement and so within spirit and principle, the right that should be included in this specification embodiment are wanted Within the scope of asking.

Claims

1. a kind of crude oil fluidity detection method, which is characterized in that the crude oil fluidity detection method includes:

According to the corresponding relationship between the apparent viscosity and crude oil temperature of each quasi-oil in liquid condition, and, all kinds of institutes The corresponding relationship between the proton spin relaxation signals amount of crude oil and crude oil temperature is stated, crude oil apparent viscosity database is established, In, the apparent viscosity database is corresponding between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount for storing Relationship；

Detect proton spin relaxation signals amount of the target crude oil under condition of different temperatures, wherein the target crude oil is in liquid Body, solid or colloidal state；

And the proton spin relaxation signals amount according to the target crude oil under condition of different temperatures, it is apparent in the crude oil Apparent viscosity of the target crude oil under condition of different temperatures is determined in viscosity data library.

2. crude oil fluidity detection method according to claim 1, which is characterized in that the basis is in liquid condition Corresponding relationship between the apparent viscosity and crude oil temperature of each quasi-oil, and, the proton spin relaxation letter of all kinds of crude oil Number amount crude oil temperature between corresponding relationship, establish crude oil apparent viscosity database, wherein the crude oil apparent viscosity data Library is used to store the corresponding relationship between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount, comprising:

Crude oil detecting step: when the crude oil of present kind is under liquid condition, the apparent viscosity and original of the crude oil are detected Corresponding relationship between oil temperature；

According to the corresponding relationship between the apparent viscosity and crude oil temperature of the crude oil, and, the proton spin of the crude oil relaxes Corresponding relationship between Henan semaphore and crude oil temperature, fitting obtain the apparent viscosity and proton spin relaxation signals of the crude oil Corresponding relationship between amount；

Different types of crude oil is replaced, and repeats the crude oil detecting step after each replacement, it is each until obtaining Corresponding relationship between the apparent viscosity and proton spin relaxation signals amount of the crude oil of type；

Corresponding relationship between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount is stored apparent to the crude oil In viscosity data library.

3. crude oil fluidity detection method according to claim 2, which is characterized in that described to detect the apparent of the crude oil Corresponding relationship between viscosity and crude oil temperature, comprising:

Apparent viscosity of crude oil under the conditions of the first different temperature is measured respectively, wherein first temperature is to make this Crude oil is in the temperature under liquid condition；

And each crude oil temperature and corresponding apparent viscosity value according to the crude oil, it obtains for indicating the original First curve of corresponding relationship between the apparent viscosity and crude oil temperature of oil.

4. crude oil fluidity detection method according to claim 3, which is characterized in that the proton of the detection crude oil Corresponding relationship between spin relaxation semaphore and crude oil temperature, comprising:

Under default magnetic field strength, using CPMG magnetic vibration pulse train, the crude oil is measured respectively in different first temperature Proton spin relaxation signals amount under the conditions of degree；

And each crude oil temperature and corresponding proton spin relaxation signals magnitude according to the crude oil, acquisition are used for Indicate the second curve of corresponding relationship between the proton spin relaxation signals amount of the crude oil and crude oil temperature.

5. crude oil fluidity detection method according to claim 4, which is characterized in that described according to the apparent of the crude oil Corresponding relationship between viscosity and crude oil temperature, and, between the proton spin relaxation signals amount and crude oil temperature of the crude oil Corresponding relationship, fitting obtain the corresponding relationship between the apparent viscosity of the crude oil and proton spin relaxation signals amount, comprising:

Based on each first temperature, first curve and the second curve are fitted, obtained for indicating the original The third curve and the third curve corresponding two of corresponding relationship between the apparent viscosity and proton spin relaxation signals amount of oil First equation is fitted formula as the apparent viscosity of the crude oil and the relationship of proton spin relaxation signals amount.

6. crude oil fluidity detection method according to claim 1, which is characterized in that the detection target crude oil is in difference Proton spin relaxation signals amount under the conditions of temperature, comprising:

Under default magnetic field strength, using CPMG magnetic vibration pulse train, target crude oil is measured respectively in different second temperature items Proton spin relaxation signals amount under part, wherein the second temperature is that the target crude oil is made to be in liquid, solid or colloidal Temperature under state.

7. crude oil fluidity detection method according to claim 5, which is characterized in that described to be existed according to the target crude oil Proton spin relaxation signals amount under condition of different temperatures determines the target crude oil in the crude oil apparent viscosity database Apparent viscosity under condition of different temperatures, comprising:

According to the type of the target crude oil, the apparent viscosity of the target crude oil is determined in the crude oil apparent viscosity database With the corresponding relationship between proton spin relaxation signals amount；

Proton spin relaxation signals amount of the target crude oil under condition of different temperatures is substituted into the apparent viscosity of the crude oil In the relationship fitting formula of proton spin relaxation signals amount, it is apparent viscous under condition of different temperatures to obtain the target crude oil Degree.

8. crude oil fluidity detection method according to claim 1, which is characterized in that contain paramagnetism object in the crude oil Matter, and the paramagnet influences less than 1% the proton spin relaxation signals of the crude oil.

9. crude oil fluidity detection method according to claim 4 or 5, which is characterized in that the default magnetic field strength is 0.05T to 1.5T.

10. crude oil fluidity detection method according to claim 1, which is characterized in that the apparent viscosity of the crude oil Test scope is 1mPas~109mPas.

11. crude oil fluidity detection method according to claim 3, which is characterized in that the measurement model of first temperature Enclose is 20 DEG C~100 DEG C.

12. crude oil fluidity detection method according to claim 6, which is characterized in that the measurement model of the second temperature Enclose is -80 DEG C~100 DEG C.

13. a kind of crude oil fluidity detection device, which is characterized in that the crude oil fluidity detection device includes:

Apparent viscosity and proton spin relaxation signals magnitude relation determining module, for according to each quasi-oil in liquid condition Corresponding relationship between apparent viscosity and crude oil temperature, and, the proton spin relaxation signals amount and crude oil of all kinds of crude oil Corresponding relationship between temperature establishes crude oil apparent viscosity database, wherein the apparent viscosity database is all kinds of for storing Corresponding relationship between the apparent viscosity and proton spin relaxation signals amount of crude oil；

Solid-state crude oil proton spin relaxation signals measurement module, for detecting proton of the target crude oil under condition of different temperatures Spin relaxation semaphore, wherein the target crude oil is in liquid, solid or colloidal state；

Crude oil fluidity determining module, for the proton spin relaxation signals according to the target crude oil under condition of different temperatures Amount determines apparent viscosity of the target crude oil under condition of different temperatures in the crude oil apparent viscosity database.

14. crude oil fluidity detection device according to claim 13, which is characterized in that the apparent viscosity and proton are certainly Revolving relaxation signals magnitude relation determining module includes:

Crude oil detection sub-module, for executing crude oil detecting step, and the crude oil detection sub-module includes: apparent viscosity and original Oil temperature relation determination unit, proton spin relaxation signals amount and crude oil temperature relation determination unit and apparent viscosity and proton are certainly Revolve relaxation signals magnitude relation acquiring unit；

The apparent viscosity and crude oil temperature relation determination unit, when being under liquid condition for the crude oil in present kind, Detect the corresponding relationship between the apparent viscosity and crude oil temperature of the crude oil；

The proton spin relaxation signals amount and crude oil temperature relation determination unit, the proton spin for detecting the crude oil relax Corresponding relationship between Henan semaphore and crude oil temperature；

The apparent viscosity and proton spin relaxation signals magnitude relation acquiring unit, for according to the apparent viscosity of the crude oil with Corresponding relationship between crude oil temperature, and, it is corresponding between the proton spin relaxation signals amount and crude oil temperature of the crude oil Relationship, fitting obtain the corresponding relationship between the apparent viscosity of the crude oil and proton spin relaxation signals amount；

Crude oil replaces submodule, for replacing different types of crude oil, and crude oil detection is controlled after each replacement Module repeats the crude oil detecting step, until the apparent viscosity and proton spin relaxation that obtain the crude oil of each type are believed Number amount between corresponding relationship；

Data sub-module stored, for by the corresponding relationship between the apparent viscosity of each quasi-oil and proton spin relaxation signals amount It stores into the crude oil apparent viscosity database.

15. crude oil fluidity detection device according to claim 14, which is characterized in that the apparent viscosity and crude oil temperature Spending relation determination unit includes:

Apparent viscosity under the conditions of first temperature measures subelement, for measuring the crude oil respectively in the first different temperature strips Apparent viscosity under part, wherein first temperature is the temperature for being in the crude oil under liquid condition；

First curve acquisition subelement, for according to each crude oil temperature of the crude oil and corresponding apparent viscosity value, Obtain the first curve of corresponding relationship between the apparent viscosity and crude oil temperature for indicating the crude oil.

16. crude oil fluidity detection device according to claim 15, which is characterized in that the proton spin relaxation signals It measures with crude oil temperature relation determination unit and includes:

Proton spin relaxation signals under the conditions of first temperature measure quantum boxes, for applying under default magnetic field strength CPMG magnetic vibration pulse train, measures proton spin relaxation signals of crude oil under the conditions of different first temperature respectively Amount；

Second curve acquisition subelement, for according to each crude oil temperature of the crude oil and corresponding proton spin relaxation Signal quantity obtains second for indicating corresponding relationship between the proton spin relaxation signals amount of the crude oil and crude oil temperature Curve.

17. crude oil fluidity detection device according to claim 16, which is characterized in that the apparent viscosity and proton are certainly Revolving relaxation signals magnitude relation acquiring unit includes:

Relationship is fitted formula and obtains subelement, for being based on each first temperature, to first curve and the second curve into Row fitting, the third for obtaining corresponding relationship between the apparent viscosity for indicating the crude oil and proton spin relaxation signals amount are bent Line and the corresponding equation with two unknowns of third curve, apparent viscosity and proton spin relaxation signals amount as the crude oil Relationship is fitted formula.

18. crude oil fluidity detection device according to claim 13, which is characterized in that the solid-state crude oil proton spin Relaxation signals measurement module includes:

Proton spin relaxation signals phasor measurement unit under the conditions of second temperature is used under default magnetic field strength, using CPMG Magnetic vibration pulse train, measures proton spin relaxation signals amount of target crude oil under the conditions of different second temperatures respectively, wherein The second temperature is the temperature made under the crude oil liquid, solid or colloidal state.

19. crude oil fluidity detection device according to claim 17, which is characterized in that the crude oil fluidity determines mould Block includes:

Data transfer unit, and for the type according to the target crude oil, determining in the crude oil apparent viscosity database should Corresponding relationship between the apparent viscosity and proton spin relaxation signals amount of target crude oil；

Apparent viscosity acquiring unit, for the proton spin relaxation signals amount generation by the target crude oil under condition of different temperatures Enter in the apparent viscosity of the crude oil and the relationship fitting formula of proton spin relaxation signals amount, obtains the target crude oil in difference Apparent viscosity under the conditions of temperature.

20. crude oil fluidity detection device according to claim 13, which is characterized in that contain paramagnetism in the crude oil Substance, and the paramagnet influences less than 1% the proton spin relaxation signals of the crude oil.

21. crude oil fluidity detection device according to claim 16 or 17, which is characterized in that the default magnetic field strength For 0.05T to 1.5T.

22. crude oil fluidity detection device according to claim 13, which is characterized in that the apparent viscosity of the crude oil Test scope is 1mPas~10⁹mPa·s。

23. crude oil fluidity detection device according to claim 15, which is characterized in that the measurement model of first temperature Enclose is 20 DEG C~100 DEG C.

24. crude oil fluidity detection device according to claim 18, which is characterized in that the measurement model of the second temperature Enclose is -80 DEG C~100 DEG C.

25. a kind of electronic equipment including memory, processor and stores the calculating that can be run on a memory and on a processor Machine program, which is characterized in that the step of processor realizes crude oil fluidity detection method when executing described program, comprising:

26. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt The step of crude oil fluidity detection method is realized when processor executes, comprising:

27. a kind of crude oil fluidity detection system, which is characterized in that include: such as right in the crude oil fluidity detection system It is required that 13 to 24 described in any item crude oil fluidity detection devices, and, it is communicated respectively with the crude oil fluidity detection device Rotational rheometer, low-field nuclear magnetic resonance analyzer and the low temperature thermostat bath of connection；

The low-field nuclear magnetic resonance analyzer is for detecting proton spin relaxation signals of the crude oil under condition of different temperatures Amount；

All kinds of crude oil that the crude oil fluidity detection device is used to be obtained according to the rotational rheometer measurement are in difference Apparent viscosity under the conditions of temperature, and, all kinds of crude oil that the low-field nuclear magnetic resonance analyzer checks are in difference Proton spin relaxation signals amount under the conditions of temperature, according to the apparent viscosity and crude oil temperature of each quasi-oil in liquid condition Between corresponding relationship, and, the corresponding relationship between the proton spin relaxation signals amount and crude oil temperature of all kinds of crude oil, Establish crude oil apparent viscosity database, wherein the apparent viscosity database is used to store the apparent viscosity and matter of each quasi-oil Corresponding relationship between sub- spin relaxation semaphore；Proton spin of the target crude oil under condition of different temperatures is also used to relax Henan semaphore determines that the target crude oil is apparent viscous under condition of different temperatures in the crude oil apparent viscosity database Degree.