CN106649906B - Energy consumption analysis method and system for oilfield transportation system - Google Patents
Energy consumption analysis method and system for oilfield transportation system Download PDFInfo
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- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention discloses a kind of energy consumption analysis method and system for oilfield transportation system, this method includes acquiring the operation data of oilfield transportation system, and pre-processed the operation data to obtain coordination data；According to the process flow of oilfield transportation system, the Mass balance model and thermodynamical model of oilfield transportation system are established；Multiple energy consumption evaluation indexes are established using each process equipment that the Mass balance model, the thermodynamical model and the coordination data are oilfield transportation system, and determine main energy consumption equipment according to the multiple energy consumption evaluation indexes；It can weak link based on using in the main energy consumption equipment identification oilfield transportation system.The method achieve to crude oil transmission process with can monitor and evaluate, determine the energy distribution rule and weak link of crude oil transmission process, make to collect defeated process use can more reasonably optimizing, unnecessary and abnormal energy consumption is reduced, to achieve the purpose that energy conservation and reduce to pollute.
Description
Technical field
The present invention relates to petroleum exploration fields, are to be related to a kind of energy consumption analysis for oilfield transportation system more specifically
Method and system.
Background technique
Oilfield transportation system is generally made of well head, metering room, block station, collection transmission pipe network and oil vapor treatment station etc., oil field
The process flow of gathering system mainly includes being collected, handling to the crude oil and casing-head gas of each oil well production in oil field, and dividing
It is not delivered to the overall process of lease oil tankage or outer defeated station and compressor station.
Currently, China majority oil field produces three high crude oil, i.e., paraffin content is high, freezing point is high, viscosity is high.To ensure that safety is defeated
It send, the crude oil, gas and water during needing to keep above-mentioned collection defeated do not solidify, it is therefore desirable to the viscosity of crude oil are reduced, so in oil field
The general technique using heated transportations such as fuel oil, combustion gas, electric heating during collecting defeated.
The energy consumption of heated transportation mainly includes the consumption of fuel, electric energy and chemical agent, in the certain feelings for the treatment of capacity
Under condition, the operational efficiency of the equipment such as powder performance, heater efficiency, electric submersible pump and the management level of entire gathering system, all
Directly or indirectly influence the total amount of energy consumption.Huge energy waste can be generated in the above process.Meanwhile heated transportation can also
A large amount of flue gas, dust and burning waste are generated, oil field and surrounding enviroment are impacted.
To sum up, the method that a kind of pair of oilfield transportation system is planned is needed so that the use during collection is defeated can more adduction
Reason.
Summary of the invention
The first technical problem to be solved by the present invention is the side for needing to provide a kind of pair of oilfield transportation system and being planned
Method.
In order to solve the above-mentioned technical problem, embodiments herein provides firstly a kind of energy for oilfield transportation system
Consumption analysis method including acquiring the operation data of oilfield transportation system, and pre-processes to be assisted the operation data
Adjusting data；According to the process flow of oilfield transportation system, the Mass balance model and thermodynamical model of oilfield transportation system are established；
It is each process equipment of oilfield transportation system using the Mass balance model, the thermodynamical model and the coordination data
Multiple energy consumption evaluation indexes are established, and determine main energy consumption equipment according to the multiple energy consumption evaluation indexes；Based on described main
Energy consumption equipment identifies that using in oilfield transportation system can weak link.
Preferably, the operation data of the oilfield transportation system includes the extraction liquid measure of gathering system processing, temperature, pressure
And moisture content.
Preferably, the operation data is pre-processed to obtain coordination data according to following formula:
In formula, x indicates vector composed by each operation data during collecting defeated,Indicate collected each operation data
Sample value composed by vector；The variance-covariance matrix of Q expression measurement error；F (x, U) is indicated according to the object for collecting defeated process
The constraint condition that material balance and energy balance are established, U are the parameter in constraining equation；Min is the operation being minimized.
Preferably, the multiple energy consumption evaluation indexes include that total energy consumption efficiency of the oilfield transportation system and total have
The energy consumption efficiency and exergy efficiency of efficiency efficiency and each process equipment.
Preferably, it is analyzed using analysis of Available Energy method, correlation analysis and/or multidimensional analysis method the multiple
Energy consumption evaluation indexes are with the main energy consumption equipment of determination.
It preferably, include: to utilize in the step of analyzing the multiple energy consumption evaluation indexes main with determination energy consumption equipment
Total energy consumption efficiency of the oilfield transportation system and the energy consumption efficiency of each process equipment obtain corresponding respectively to each process equipment
Energy consumption related coefficient；It, will be corresponding with the energy consumption related coefficient when the absolute value of the energy consumption related coefficient is greater than preset value
Process equipment be determined as main energy consumption equipment.
Preferably, obtain corresponding respectively to the energy consumption related coefficient of each process equipment according to following expression:
In formula, RiFor the energy consumption related coefficient of i-th of process equipment in oilfield transportation system, η is oilfield transportation system
Total energy consumption efficiency, ηiFor the energy consumption efficiency of i-th of process equipment, n is the sum of process equipment in oilfield transportation system.
Preferably, in the step of identifying the use energy weak link in oilfield transportation system based on the main energy consumption equipment
It include: the numerical value and corresponding energy for calculating separately the energy taste of the main energy consumption equipment, and sample according to the energy
The numeric renderings energy release profiles and energy absorption curve of variable quantity；Compare the energy release profiles and energy absorption curve
Main energy consumption equipment corresponding with the biggish region of area is determined as in oilfield transportation system by the area of area defined
With can weak link.
Preferably, A is sampled according to the energy that following expression calculates the main energy consumption equipment:
A=Δ Ex/ Δ H
In formula, Δ Ex is the variable quantity of available energy, and Δ H is the variable quantity of energy.
Embodiments herein additionally provides a kind of energy consumption analysis system for oilfield transportation system, comprising: data are adopted
Collect module, acquire the operation data of oilfield transportation system, and the operation data is pre-processed to obtain coordination data；
Model building module establishes the Mass balance model and heat of oilfield transportation system according to the process flow of oilfield transportation system
Mechanical model；Indicator analysis module is oil using the Mass balance model, the thermodynamical model and the coordination data
Each process equipment of field gathering system establishes multiple energy consumption evaluation indexes, and is determined and led according to the multiple energy consumption evaluation indexes
Want energy consumption equipment；Energy consumption analysis module, can weak ring based on using in the main energy consumption equipment identification oilfield transportation system
Section.
Compared with prior art, one or more embodiments in above scheme can have following advantage or beneficial to effect
Fruit:
By extracting the energy consumption evaluation indexes of each process equipment of oilfield transportation system, realize to crude oil transmission process
With that can monitor and evaluate, determines the energy distribution rule and weak link of crude oil transmission process, make the use for collecting defeated process can be more
Reasonably optimizing reduces unnecessary and abnormal energy consumption, to achieve the purpose that energy conservation and reduce pollution.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.Target and other advantages of the invention can be wanted by following specification, right
Specifically noted structure is sought in book and attached drawing to be achieved and obtained.
Detailed description of the invention
Attached drawing is used to provide to the technical solution of the application or further understanding for the prior art, and constitutes specification
A part.Wherein, the attached drawing for expressing the embodiment of the present application is used to explain the technical side of the application together with embodiments herein
Case, but do not constitute the limitation to technical scheme.
Fig. 1 is the flow diagram of the energy consumption analysis method for oilfield transportation system of the embodiment of the present application；
Fig. 2 is the exergy loss distribution schematic diagram according to the oilfield transportation system of the embodiment of the present application；
Fig. 3 is the structural schematic diagram of the energy consumption analysis system for oilfield transportation system of the embodiment of the present application.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching relevant art effect can fully understand and implement.This Shen
Please each feature in embodiment and embodiment, can be combined with each other under the premise of not colliding, be formed by technical solution
It is within the scope of the present invention.
Fig. 1 is the flow diagram of the energy consumption analysis method for oilfield transportation system of the embodiment of the present application, this method
The following steps are included:
Step S110, the operation data of oilfield transportation system is acquired, and the operation data is pre-processed to obtain
Coordination data.
Step S120, according to the process flow of oilfield transportation system, establish oilfield transportation system Mass balance model and
Thermodynamical model.
It step S130, is oil field gathering and transportation using the Mass balance model, the thermodynamical model and the coordination data
Each process equipment of system establishes multiple energy consumption evaluation indexes, and determines main energy consumption according to the multiple energy consumption evaluation indexes
Equipment.
It step S140, can weak link based on using in the main energy consumption equipment identification oilfield transportation system.
Specifically, the work when operation data of oilfield transportation system includes the actual motion of each component part in gathering system
Skill parameter and energy consumption data are specifically as follows the extraction liquid measure of gathering system processing and the temperature of each component part, pressure
Power, moisture content etc..The operation data of the technological parameter of each component part can using the sensor that is arranged in gathering system into
Row acquisition.Such as the temperature of crude oil is acquired by temperature sensor, the pressure of crude oil is acquired by pressure sensor, passes through flow
The flow of sensor acquisition crude oil.There are many methods for the on-line measurement of moisture content, and common method includes densimeter method, capacitor
Method, radio frequency method and microwave method etc..For example, moisture content is measured using densimeter method, it is former that densitometer acquisition can be first passed through
The density of oil, the moisture content of crude oil is obtained further according to density and the relationship of moisture content.
It should be noted that in embodiments herein, not just for station outside collection transmission pipe network at or well head at original
Oil is detected, and to be also acquired to data in standing including metering room, block station and oil vapor treatment station etc..Collected number
According to usually analogue data, temporarily stored after A/D is converted.
Be possible in the acquisition data temporarily stored comprising mistake data, therefore also need to the data temporarily stored into
The certain pretreatment of row.Pretreatment specifically includes the inspection that data are carried out with deviation and consistency, further includes rejecting in data
Redundancy and error, to improve the precision of subsequent operation.
It for example, can be by calculating the mean values of collected data, and according to equal when carrying out deviation check to data
Value judges whether data deviation is excessive.When carrying out consistency check to data, Moving Window method and standard deviation method can be used
Deng.To in data redundancy and error reject when, data are modified using data harmonization technology, specifically
As shown in expression formula (1):
Expression formula (1) is data harmonization equation, and in formula, x indicates each operation data institute group for needing to measure during collection is defeated
At variable vector,Indicate vector composed by the sample value of collected each operation data.The variance of Q expression measurement error
Covariance matrix, wherein the diagonal element of Q is square of the variance of measurement error, can pass through measuring instrumentss or measurement
Sample value is estimated.F (x, U) indicates the constraint condition according to foundation such as material balance, the energy balance for collecting defeated process, and U is
Preset parameter in constraining equation；Min is the operation being minimized.
By being handled using data harmonization equation the data temporarily stored, available coordination data.Coordinate number
According to by least square method, the appreciable error in primary data sample is rejected, the conservation of mass and energy that can satisfy system are kept
It is permanent.Mass balance model and thermodynamical model are established in process flow below according to oilfield transportation system.
The process flow of oilfield transportation system is primarily referred to as, and passes through conveying, separation, meter from the crude oil of well mouth of oil well output
Amount, dehydration, stable, storage and transportation and other processing etc., final production goes out whole technical process of satisfactory oil product.Base
Mass balance model is established in the process flow of oilfield transportation system and thermodynamical model includes: to be established according to mass conservation law
The Mass balance model of oilfield transportation system and oil field gathering and transportation is established according to the first law of thermodynamics and the second law of thermodynamics
The thermodynamical model of system.Specifically, shown in Mass balance model such as expression formula (2):
∑min=∑ mout+Δm (2)
In formula, ∑ minIndicate entry into total quality of the crude oil of oilfield transportation system, ∑ moutIt indicates from oilfield transportation system
Total quality of the crude oil of output, Δ m indicate the quality of the crude oil lost in the transmission process of oilfield transportation system.
Thermodynamical model includes energy conservation equation and available energy equilibrium equation, as shown in expression formula (3):
∑Ein+∑Qheat=∑ Eout+∑Qloss+ Δ E, (3)
∑Exin+∑ExQ=∑ Exout+ΔEx
Wherein, Ex=(H-H0)-T0(S-S0),ExQ=Qheat(T-T0)/T
In formula, Σ EinIndicate energy possessed by the material of input system；ΣQheatSystem is heated in expression to be disappeared
The energy (heat) of consumption；ΣEoutIndicate energy possessed by the material of output system；ΣQlossExpression system is during heating
The energy (heat) lost；Δ E indicates the variable quantity of energy, the i.e. energy of system loss；ΣExinIndicate the object of input system
Available energy possessed by expecting；ΣExQExpression carries out system to heat consumed available energy；ΣExoutIndicate the object of output system
Available energy possessed by expecting；Δ Ex indicates the variable quantity of available energy, the i.e. available energy of system loss.
Next, being each work of oilfield transportation system using Mass balance model, thermodynamical model and coordination data
Skill equipment establishes multiple energy consumption evaluation indexes.Specifically, energy consumption evaluation indexes include total energy consumption efficiency of oilfield transportation system
With the energy consumption efficiency and exergy efficiency of total exergy efficiency and each process equipment, each energy consumption evaluation indexes such as expression formula
(4), (5), (6), (7) are shown:
In formula, η is total energy consumption efficiency of oilfield transportation system, EoutIndicate the gross energy of outflow oilfield transportation system, Ein
Indicate the gross energy of inflow oilfield transportation system.ηexFor total exergy efficiency of oilfield transportation system, ExoutIndicate effluent oil
Total available energy of field gathering system, ExinIndicate total available energy of inflow oilfield transportation system.ηiFor in oilfield transportation system
The energy consumption efficiency of i-th of process equipment, Ei,outIndicate the energy of i-th of process equipment in outflow oilfield transportation system, Ei,inTable
Show the energy for flowing into i-th of process equipment in oilfield transportation system.ηi,exHave for i-th process equipment in oilfield transportation system
Efficiency efficiency, Exi,outIndicate the available energy of i-th of process equipment in outflow oilfield transportation system, Exi,inIt indicates to flow into oil field collection
The available energy of i-th of process equipment in defeated system.
Above-mentioned each expression formula characterizes the entirety of system and the energy consumption efficiency of part respectively, main weak with energy for identification
Link.Wherein, what expression formula (4) indicated is the energy consumption efficiency of gathering system entirety；What expression formula (5) indicated is that gathering system is whole
The exergy efficiency of body；What expression formula (6) indicated is the energy consumption efficiency of each process equipment i；What expression formula (7) indicated is each technique
The exergy efficiency of equipment i.
Energy consumption in oil field gathering and transportation and treatment process accounts for the 30%~40% of crude oil production total energy consumption, wherein collects defeated part
Energy consumption account for 60%~80%, and 90%~97% in above-mentioned data is thermal energy consumption, remaining 3%~10% is power electric power
Consumption.And for oilfield transportation system, each actual power consumption rate of process equipment is not identical, for example, in oil field
In gathering system, the energy consumption of heating furnace accounts for the 70%-80% of total energy consumption, and the energy consumption of pump accounts for 15%-20%.Therefore, for letter
Change analytic process, needs according to multiple energy consumption evaluation indexes comprehensive descisions of each process equipment to determine total energy consumption to system
The process equipment to play a major role, i.e., main energy consumption equipment.It include: total energy consumption efficiency using oilfield transportation system and each work
The energy consumption efficiency of skill equipment obtains corresponding respectively to the energy consumption related coefficient of each process equipment, when the absolute value of energy consumption related coefficient
When greater than preset value, process equipment corresponding with the energy consumption related coefficient is determined as main energy consumption equipment.
Specifically, being calculated using the method for correlation analysis in embodiments herein and corresponding to each process equipment
Energy consumption related coefficient, as shown in expression formula (8):
In formula, RiFor the energy consumption related coefficient of i-th of process equipment in oilfield transportation system, η is oilfield transportation system
Total energy consumption efficiency, ηiFor the energy consumption efficiency of i-th of process equipment, n is the sum of process equipment in oilfield transportation system.
Wherein, work as RiWhen > 0, ηiIt is to be positively correlated with η, works as RiWhen < 0, ηiIt is negative correlation with η.When | Ri| when≤0.3, it is believed that
ηiCorrelation is not present with η.As 0.3 < | Ri| when≤0.5, ηiIt is low linear correlation with η, as 0.5 < | Ri| when≤0.8, ηi
It is significant linear correlation with η, when | Ri| when > 0.8, ηiIt is that highly linear is related to η.
Further, the main energy consumption equipment of system is determined according to the requirement of the precision of energy consumption analysis.For example, work as energy
When the required precision of consumption evaluation is higher, it may include low linearly related, significant linearly related and highly linear correlation is corresponding
Each process equipment be main energy consumption equipment.
It should be noted that analysis of Available Energy method, multidimensional analysis can also be used in the other embodiments of the application
Method etc. carrys out the coefficient of computational representation correlation to determine the main energy consumption equipment during collecting defeated.
It, can be to being known in oilfield transportation system with energy weak link based on the determining each main energy consumption equipment of screening
Not.Specifically, using energy to each main energy consumption equipment using available energy image analysis method in one embodiment of the application
Situation is analyzed, and available energy figure combines the first law of thermodynamics and the second law of thermodynamics, passes through picture image earth's surface
Relationship up between energy variation and energy the taste variation of oilfield transportation system out, and clearly embody oilfield transportation system
Thermodynamic process.When identification, calculate separately first each main energy consumption equipment energy taste, and according to energy taste numerical value with
The numeric renderings energy release profiles and energy absorption curve of corresponding energy variation amount, then compare energy release profiles and energy
The area for measuring absorption curve area defined, is determined as oil field for main energy consumption equipment corresponding with the biggish region of area
Energy weak link is used in gathering system, is illustrated below with reference to Fig. 2.
Fig. 2 is the exergy loss distribution schematic diagram according to the oilfield transportation system of the embodiment of the present application.Ordinate A in figure
It indicates energy grade, is a dimensionless group.Energy samples the variation delta Ex by available energy in thermal procession and can quantitative change
The ratio of change amount Δ H obtains, i.e. A=Δ Ex/ Δ H.Abscissa Δ H is the variable quantity of energy in figure.Wherein, ring is indicated when A=0
Border.Δ H indicates the enthalpy variation that process occurs in figure, and the Δ H each group curve corresponding to different sections is directed to the defeated system of collection respectively
The different process equipments of system, curve corresponding with multiple sections of abscissa Δ H are the change curve of energy grade A,
In be located above be energy release side curve Aed, the underlying curve Aea for energy absorption side.
The variation of matter energy is divided into energy release process and energy absorption process, and two processes carry out simultaneously, goes out in pairs
It is existing.The area that the change curve and abscissa Δ H of energy grade A surrounds reflects the maximum available work of energy transfer process, energy
The area in the region between amount release lateral curvature line Aed and energy absorption lateral curvature line Aea is equal in energy transfer processLoss
Size.
According to the shape of the variation of the curve in available energy figure, each energy conversion process of internal system can be obtained
Variation, difference (Aed-Aea) represent the reduction of driving process available energy (Δ Ex).For example, it is assumed that the 3rd group of curve is table
Showing heating furnace to the heating process of crude oil exporting liquid, heating furnace exports available energy in diabatic process, and outer infusion obtains available energy,
The available energy of acquisition be less than heating furnace output available energy, between difference be exergy loss (Δ Ex).
The method of the embodiment of the present application, can determine crude oil gathering system can weak link, reduce it is unnecessary and
Abnormal energy consumption, to achieve the purpose that energy conservation and reduce pollution.
Here is one analyzed using the energy consumption analysis method of the embodiment of the present application certain defeated process of oil field ground collection
A example, the results are shown in Table 1 for analysis:
1 oilfield transportation system energy consumption analysis result of table
| Project | Collection transmission pipe network | Petroleum transferring station | Dehydrating plant |
| Utilization rate of electrical % | 39 | 40 | 38 |
| Heat utilization rate % | 55 | 54 | 58 |
| Energy efficiency % | 49 | 50 | 46 |
The gathering system has 83 mouthfuls of oil wells, 6 metering rooms, 2 petroleum transferring stations and 1 dehydrating plant, and average individual well Liquid output is
62t/d, production fluid average moisture content are 85%, do not heat oil-collecting process flow using tree-shaped single tube.Dehydrating plant is mainly responsible for this
The dehydration of regional petroleum transferring station turns oil, gas collection task, and is responsible for the crude oil exporting task in the region.Utilize the embodiment of the present application
Energy consumption analysis method determines that collection transmission pipe network, petroleum transferring station, dehydrating plant are main energy consumption equipment, according to the analysis in table 1 as a result, can
To take certain measure to improve the utilization rate of electrical of collection transmission pipe network and dehydrating plant.
Upper table is mainly to the respective energy consumption of 3 parts (collection transmission pipe network, petroleum transferring station and dehydrating plant) main in gathering system
Efficiency is analyzed, and the opposite loss between them can be further clarified by available energy image analysis method, no
It repeats again.
Fig. 3 is the structural schematic diagram of the energy consumption analysis system for oilfield transportation system of the embodiment of the present application, is joined below
Fig. 3 is examined to illustrate each section composition of the system.
Specifically in Fig. 3, data acquisition module 31 executes the operation of step S110, and model building module 32 executes step
The operation of S120, indicator analysis module 33 execute the operation of step S130, and energy consumption analysis module 34 executes the operation of step S140.
It is no longer developed in details herein.
Although disclosed herein embodiment it is as above, the content is only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (8)
1. a kind of energy consumption analysis method for oilfield transportation system, comprising:
The operation data of oilfield transportation system is acquired, and the operation data is pre-processed to obtain coordination data；
According to the process flow of oilfield transportation system, the Mass balance model and thermodynamical model of oilfield transportation system are established；
It is each technique of oilfield transportation system using the Mass balance model, the thermodynamical model and the coordination data
Equipment establishes multiple energy consumption evaluation indexes, and determines main energy consumption equipment according to the multiple energy consumption evaluation indexes, wherein described
Multiple energy consumption evaluation indexes include total energy consumption efficiency of the oilfield transportation system and the energy consumption efficiency of each process equipment；
It can weak link based on using in the main energy consumption equipment identification oilfield transportation system；
Wherein, main energy consumption equipment is determined according to the multiple energy consumption evaluation indexes specifically:
Using total energy consumption efficiency of the oilfield transportation system and the energy consumption efficiency of each process equipment, obtained according to following expression
To the energy consumption related coefficient for corresponding respectively to each process equipment:
In formula, RiFor the energy consumption related coefficient of i-th of process equipment in oilfield transportation system, η is total use of oilfield transportation system
Energy efficiency, ηiFor the energy consumption efficiency of i-th of process equipment, n is the sum of process equipment in oilfield transportation system；
When the absolute value of the energy consumption related coefficient be greater than preset value when, will process equipment corresponding with the energy consumption related coefficient it is true
It is set to main energy consumption equipment.
2. the method according to claim 1, wherein the operation data of the oilfield transportation system includes collecting defeated system
Extraction liquid measure, temperature, pressure and the moisture content of system processing.
3. the method according to claim 1, wherein being located in advance according to following formula to the operation data
Reason is to obtain coordination data:
S.t.F (x, U)=0
In formula, x indicates vector composed by each operation data during collecting defeated,Indicate the sample of collected each operation data
Vector composed by this value；The variance-covariance matrix of Q expression measurement error；F (x, U) indicates flat according to the material for collecting defeated process
The constraint condition that weighing apparatus and energy balance are established, U are the parameter in constraining equation；Min is the operation being minimized.
4. the method according to claim 1, wherein the multiple energy consumption evaluation indexes further include the oil field collection
Total exergy efficiency of defeated system and the exergy efficiency of each process equipment.
5. according to the method described in claim 4, it is characterized in that, using analysis of Available Energy method, correlation analysis and/
Or multidimensional analysis method analyzes the multiple energy consumption evaluation indexes with the main energy consumption equipment of determination.
6. the method according to claim 1, wherein identifying oil field gathering and transportation system based on the main energy consumption equipment
In system with can weak link the step of in include:
The energy taste of the main energy consumption equipment is calculated separately, and according to the numerical value of energy taste and corresponding energy quantitative change
The numeric renderings energy release profiles and energy absorption curve of change amount；
Compare the area of the energy release profiles and energy absorption curve area defined, it will be with the biggish region phase of area
Corresponding main energy consumption equipment is determined as using in oilfield transportation system can weak link.
7. according to the method described in claim 6, it is characterized in that, calculating the main energy consumption equipment according to following expression
Energy samples A:
A=Δ Ex/ Δ H
In formula, Δ Ex is the variable quantity of available energy, and Δ H is the variable quantity of energy.
8. a kind of energy consumption analysis system for oilfield transportation system, comprising:
Data acquisition module acquires the operation data of oilfield transportation system, and is pre-processed the operation data to obtain
To coordination data；
Model building module establishes the Mass balance model of oilfield transportation system according to the process flow of oilfield transportation system
And thermodynamical model；
Indicator analysis module is oil field collection using the Mass balance model, the thermodynamical model and the coordination data
Each process equipment of defeated system establishes multiple energy consumption evaluation indexes, and determines main consumption according to the multiple energy consumption evaluation indexes
Energy equipment, the multiple energy consumption evaluation indexes include the total energy consumption efficiency and each process equipment of the oilfield transportation system
Energy consumption efficiency；
Energy consumption analysis module, can weak link based on using in the main energy consumption equipment identification oilfield transportation system；
Wherein, main energy consumption equipment is determined according to the multiple energy consumption evaluation indexes specifically:
Using total energy consumption efficiency of the oilfield transportation system and the energy consumption efficiency of each process equipment, obtained according to following expression
To the energy consumption related coefficient for corresponding respectively to each process equipment:
In formula, RiFor the energy consumption related coefficient of i-th of process equipment in oilfield transportation system, η is total use of oilfield transportation system
Energy efficiency, ηiFor the energy consumption efficiency of i-th of process equipment, n is the sum of process equipment in oilfield transportation system；
When the absolute value of the energy consumption related coefficient be greater than preset value when, will process equipment corresponding with the energy consumption related coefficient it is true
It is set to main energy consumption equipment.
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| CN109298655B (en) * | 2017-07-24 | 2020-11-10 | 中国石油化工股份有限公司 | Energy analysis method and device for catalytic cracking |
| CN109299482B (en) * | 2017-07-24 | 2022-06-07 | 中国石油化工股份有限公司 | Hydrocracking energy analysis method and device |
| CN112528453A (en) * | 2019-08-29 | 2021-03-19 | 中国石油化工股份有限公司 | Defeated system energy consumption computing system of collection based on data wash |
| CN113065681A (en) * | 2020-01-02 | 2021-07-02 | 中国石油天然气股份有限公司 | Energy optimization method and device for oil field gathering and transportation treatment system |
| CN113700458B (en) * | 2020-05-22 | 2023-08-22 | 中国石油天然气股份有限公司 | Energy consumption optimization method and device for oilfield water injection system |
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