CN102341563B - Method for monitoring oil-field development - Google Patents
Method for monitoring oil-field development Download PDFInfo
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- CN102341563B CN102341563B CN201080010651.9A CN201080010651A CN102341563B CN 102341563 B CN102341563 B CN 102341563B CN 201080010651 A CN201080010651 A CN 201080010651A CN 102341563 B CN102341563 B CN 102341563B
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- oil
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
Abstract
The invention relates to the oil industry, in particular to methods for monitoring the development of oil fields. In order to increase the monitoring efficiency of the oil field development by the fuller recording of parameters that characterise a deposit to be developed, for hydraulically unrelated areas with equal values of a desirability functions, the method involves additionally measuring the stability of a water-oil emulsion in each well, calculating the mean value of the water-oil emulsion within each area and advising the use of methods for increasing oil recovery at the areas according to the incrementation of the water-oil emulsion value. In order to determine the hydraulically unrelated areas, the method involves measuring a formational pressure, the viscosity of formation fluids and the relative phase permeability of oil and water, building maps of pressure fields and maps of fields of filtering and penetration rates and superimposing the maps of pressure fields on the maps of fields of filtering and penetration rates. The desirability function values of the methods for increasing oil recovery are calculated for each area according to the multidimensional equation the dependence thereof on the number of production and injection wells, permeability, layer and zonal heterogeneity, output rate, water cut and the water withdrawal rates of the wells of the area. For a specific well, it is recommended to use the methods for increasing oil recovery until the maximum value of the oil-water emulsion is achieved and stabilized. The claimed method makes it possible to select areas for using the methods for increasing oil recovery with the equal mean values of the desirability function at the hydraulically unrelated areas taking into account the influence of formation stimulation methods.
Description
Technical field
The present invention is designed to petroleum industry, to control the exploitation of oil reservoir.
Background technology
The known control method for oil reservoir development comprises the laboratory research of the characteristic to porous media and reservoir fluid, to the geophysical of well and the gyp exploration of geology, to structure and the combined analysis of oil source zone condition diagram, oil reservoir is resolved into the multiple representational region with typical geology and seepage flow characteristics, and the selection of the layer of oil production rate is increased to application collecting method.
A kind of control method of oil reservoir development (patent No. disclosed in 27 days September in 1998 is the Russ P of RUN2119583) is had to comprise the laboratory research of the characteristic to porous media and reservoir fluid, the gyp exploration of geophysical and geology of well, to the structure of geological section, by the tracking of typical permeability layer to interlayer, to structure that the is initial and figure of remaining oil-producing formation, to the explanation of the oil-producing formation of exhaustion, this explanation is with the explanation to the oil production rate accumulated and injectability.
The shortcoming of this method is to reckon without the concrete distribution of the barometric gradient in bed and the formation of retention layer, and does not also consider their impacts for bed output, and this impact reduces the reliability of the location of the oil reservoir to slowly motion.
There is a kind of method (V.V.Devlikamov of border of the oil reservoir being used for detecting slowly motion, Z.A.Khabibullin, and M.M.Kabirov.Anomalous Oils.Moscow:Nedra, 1975,168p) comprise the constituent content estimating to be configured to oil, strata pressure in measuring well, and calculate dynamic shear stress.Based on the dynamic oil value of shearing to each well calculated, and bed permeability distribution map, create the distribution map showing dynamic shear stress gradient.The distribution map of formation pressure gradient is created by the measured value of the strata pressure in each well.By the dynamic pressure gradient of oil shearing force compared with actual formation barometric gradient.Show the distribution map of the dynamic pressure gradient of oil shearing force by combining and show the distribution map of actual formation barometric gradient, drawing the border of the oil reservoir of slowly motion.
The shortcoming of this method is it only to be applied to even stratum.When the inhomogeneities degree such as band shape and lamination are high, if when also having the inhomogeneities of earth formation to increase, this control method does not consider the impact of seepage velocity on the distribution of the barometric gradient in bed and the formation of retention layer, and do not consider their impacts on bed output yet, thus reduce the reliability of positioning of the oil reservoir of slowly motion.
A kind of control method (patent No. disclosed in August 20 calendar year 2001 is the Russ P of RU N2172402) of oil reservoir development, the most similar to disclosed that, comprise the relative phase permeability measuring strata pressure, reservoir fluid stickiness, oil and water; Build the figure showing pressure field, seepage flow and rate of infiltration; Pressure field pattern is added on the figure showing seepage flow and rate of infiltration; To with hydrodynamic force have nothing to do the location in place.By the multidimensional equation of the liquid velocity of the consumption of the quantity of the production and Injection Well that depend on this place, permeability, lamination and banded inhomogeneities, reserves, water content and well, the extent function value of the oil recovery method of application of advanced for the location calculations that each and hydrodynamic force have nothing to do.The oil recovery method of these advanced persons is applied to the place irrelevant with hydrodynamic force by the order that extent function declines.
The shortcoming of this method is its impact not considering collecting method, and this can cause the irreversible change of hole space structures and reservoir fluid properties.In the process of oil reservoir development, the irreversible change of hole space structures can be caused to the long term of bed, infiltrative decline, the change of reservoir fluid properties and reserves structure.Because the physicochemical characteristics injecting water is different from the physicochemical characteristics of reservoir water, the equilibrium state of system has been upset in the effect of water to oil reservoir.Injecting water is the new component of oil reservoir, it and rock matrix, and the interaction of hydrocarbon and reservoir water causes the inhomogeneities of bed to increase, and the difference of rock permeability becomes greatly, and the substantial variations in the characteristic of reservoir fluid.Thus, water-petroleum emulsion may be formed after this process.(V.A.Amiyan.Possibility of Emulsion Formation in the Well Zone.Moscow，1959，no.11，39p./TsNIIT Neftegaz.Ser.Oil Field Engineering.Newsof Oil and Gas Equipment)
As well-known in oilfield engineering, when applying thermal methods, payzone can suffer to change the most significantly.Thermal process is along with the formation of sticky and stable petroleum emulsion.(G.N.Pozdnyshev, R.Sh.Fattakhov, and D.M.Bril ' .Formation of Resistant Oil Emulsions When ApplyingThermal Methods of Action on Formation and Ways to Destroy Them//ThematicScientific Engineering Review:Ser.Oil Field Engineering.Moscow:VNIIOENG.1983, issue 16 (65), 44p.), at Kenkyak oil reservoir (North Kazakhstan), in producing well, the injection of cyclic steam forms the emulsion of trickle dispersion in oil condensation along with steam.(D.A.Alimanov.Some Questions Concerning Production of High-Viscous Oil at the KenkiyakDeposit//Oil Field Engineering：Scientific Engineering Information Book.Moscow.VNIIOENG.1981，no.6，pp.19-20).
When applying different collecting methods, in bed, form the petroleum emulsion of different resistance degree.Water-the petroleum emulsion of pumping illustrates the resistance broken, due to the application of advanced oil recovery method, and the feature of the change of oil reservoir state.That is exactly reason different in the layer that has nothing to do from hydrodynamic force in oil reservoir of the average of why petroleum emulsion resistance.The growth of the resistance of water-petroleum emulsion makes the lifting of emulsion and transports complicated significantly, causes the rapid deterioration of equipment, the application of demulsifying agent, and causes a large amount of growths of the cost for Petroleum Production.With regard to this point, the place that the application choice for advanced collecting method is correct is important.
Summary of the invention
Engineering duty of the present invention is the more thorough consideration by the characteristic parameter to the oil reservoir developed, such as, water-the petroleum emulsion analyzing pumping, to the Resistance Value broken, when water-petroleum emulsion is promoted with pumping, increases the control efficiency to oil reservoir development.
By realizing engineering duty to the control method of oil reservoir development, this control method comprises the relative phase permeability measuring strata pressure, the stickiness of reservoir fluid, oil and water; Build pressure field pattern, show the figure of seepage field and rate of infiltration; Pressure field pattern is added on the figure showing seepage flow and rate of infiltration; To the location in the place had nothing to do with hydrodynamic force.By depending on the multidimensional equation of the quantity of production in this place and Injection Well, permeability, lamination and banded inhomogeneities, the consumption of reserves, the content of water, the liquid velocity of well, the extent function value of the oil recovery method of application of advanced for the location calculations that each and hydrodynamic force have nothing to do; For the place irrelevant with hydrodynamic force with identical extent function value, below necessary: estimate the water-petroleum emulsion resistance in each well, calculate the average of the water-petroleum emulsion resistance in each place, the advanced collecting method of exemplary application is to increase the value of water-petroleum emulsion resistance in the zone.
Advanced collecting method is applied to the well of specifying by suggestion, until reach the maximum value of water-petroleum emulsion resistance and make it stablize.
During when the application choice for advanced collecting method with the place that hydrodynamic force is irrelevant, there is the value that different location has almost equal (depending on the accuracy of calculating) extent function in occasional.In this case, can select the place of the application being used for advanced collecting method according to water-petroleum emulsion Resistance Value, water-petroleum emulsion Resistance Value illustrates the feature of the state of oil reservoir after application of advanced collecting method on the place compared.
Known, the increase of the frequency of advanced collecting method application is attended by the minimizing of extra Oil Generation output.According to omnibus survey, the increase of the frequency of the HCl treatment of producing well is attended by minimizing (the V.A.Amiyan.Physicochemical Methods of Well Production Improvement.Moscow of extra Oil Generation output, Nedra, 1970,279p).If the number of times of also known circulation rises, the efficiency of the cyclic steam process of well is also reduced.(A.I.Artemenko，V.A.Kashchavtsev，and A.A.Fatkullin.CyclicSteam Treatment as One of Priorities in Highly Viscous Oil Production//OilBusiness.2005，no.6，pp.113-115)
With the growth of the frequency that advanced collecting method is applied, the extra reduction of Oil Generation output is relevant with the growth of the resistance of petroleum emulsion.The growth of the frequency that the resistance of water-petroleum emulsion is applied along with advanced collecting method and increase and reach its maximum value.When stabilizing the maximum value of water-petroleum emulsion resistance, the numerical value of extra oil production rate becomes insignificant.Therefore, the application of advanced collecting method is effective for any specific well in selected region, until make water-petroleum emulsion resistance reach maximum value and stablize.
Invention is explained by figure
Fig. 1. in the cyclic steam process of the repetition of well 427, the change of extra oil production rate (1) and the variation of petroleum emulsion Resistance Value (2): Q
n/ Q
1the yield level Q after performing n circulation
nwith perform first time circulate after yield level Q
1relational expression; η
n/ η
1the petroleum emulsion resistance levels η after performing n circulation
nwith perform first time circulate after petroleum emulsion resistance levels η
1relational expression.
Fig. 2. in the HCl treatment of the repetition of well 279, the change of extra oil production rate (1) and the variation of petroleum emulsion Resistance Value (2): Δ Q/Q is the relational expression of the level after extra oil production rate level performs with circulation; Δ η/η is the relational expression of the petroleum emulsion resistance levels after the level of variation on petroleum emulsion Resistance Value performs with circulation.
The control method for oil reservoir development provided is applied to the republican Ge Lie meter Ha oil reservoir of black De Muerte.The main formation target of Ge Lie meter Ha oil reservoir development is Bashkirian bed A
4.Target is developed by the seven-spat pattern system of well between any two apart from 173 meters.Under reservoir state, oil stickiness reaches 148.14mPa/sec.Different advanced collecting methods is used to the exploitation of this oil reservoir.
Be the operating sequence specified in the Russ P of RU N2172402 according to the patent No., comprise measurement strata pressure, reservoir fluid stickiness, the relative phase permeability of oil and water; Build the figure showing pressure field, seepage flow and rate of infiltration; Being added to by pressure field pattern on the figure showing seepage flow and rate of infiltration, is the Bashkirian bed A in oil reservoir
4determine the place irrelevant with hydrodynamic force.By depending on the multidimensional equation of liquid velocity of the quantity of production in this place and Injection Well, permeability, lamination and banded inhomogeneities, the consumption of reserves, water content, well, the extent function value of the oil recovery method of application of advanced for the location calculations that each and hydrodynamic force have nothing to do.Multiple extent function value with almost equal (0.4331 and 0.4330) of application of advanced oil recovery method is had to be the place of feature.In the process analyzing advanced oil recovery method, known in the first place (extent function value is 0.4331), be produce producing well after the well of the steam injection being subject to impulse force metering.At present, oil field waste is injected.The second place (extent function value is 0.4331), be produce producing well at the layer of hot water effect.After naturally developing, start hot water and inject.Reservoir fluid in the well at two places place all promotes with power-actuated centrifugal pump.
Petroleum emulsion sample is collected in the well in considered place.Measure emulsion resistance in the following manner.Volume is that the water-petroleum emulsion of 100ml is introduced into polyacrylic glass, and this polyacrylic glass is placed in and is full of in the water-bath of distilled water.Current strength is that two electrodes of 1.2A are in a water bath immersed.Voltage between electrode reaches 12V.The process of emulsion process controlled by the variation of the redox potential in multiple Polypropylene Bag, and Polypropylene Bag is with distilled water, and these Polypropylene Bags are placed in the water-bath with electrode.The redox potential of distilled water reaches+120mV.When the redox potential of water reaches maximum value 205mV in a water bath, process is interrupted.Suspend and continue until the redox potential of water is reduced to minimum value 50mV.Circulation described by repetition is until form the border between oil and water.The growth of the quantity of emulsion cycle for the treatment of is attended by the increase of petroleum emulsion resistance.Then, be the average of two location calculations petroleum emulsion resistances.The average 1.3 times of the petroleum emulsion resistance in the second place is exceeded at the average of the petroleum emulsion resistance in the first place.Recommend the second place application of advanced collecting method.
The cyclic steam process repeated for 7 times is carried out in well 427 in the first place.After the cyclic steam process of well, petroleum emulsion is sampled.According to method described above, measure petroleum emulsion resistance.Chart as shown in Figure 1, after the 4th circulation, petroleum emulsion resistance reaches maximum value, and the execution of circulation is afterwards not effective, because extra oil production rate not obvious.
The repetition HCl treatment of 4 times is carried out in well 279 in the second place.Chart as shown in Figure 2, after the 3rd HCl treatment, petroleum emulsion resistance reaches maximum value, and in circulation after execution, extra oil production rate is also not obvious, and the further application of advanced collecting method is not effective.
Thered is provided to the control method of oil reservoir development make with hydrodynamic force have nothing to do region in select place to become possibility, with when the average of extent function is equal, application of advanced collecting method, tackles by the irreversible change in the application structure of interstitial space that causes of these methods and the characteristic of reservoir fluid.
Claims (5)
1. the control method for oil reservoir development, comprise the location in the place had nothing to do with hydrodynamic force, the extent function value of the oil recovery method of computing application advanced person, petroleum emulsion resistance in each well in the place that measurement and hydrodynamic force have nothing to do, and in the region had nothing to do with hydrodynamic force the collecting method of application of advanced, to increase water-petroleum emulsion resistance.
2. the method for claim 1, comprise measure strata pressure, the stickiness of formation fluid, relatively phase oil and water permeability for the location to the place had nothing to do with hydrodynamic force; Build and show the figure of pressure field and show the figure of seepage field and rate of infiltration; The figure showing pressure field is superimposed on the figure showing seepage field and rate of infiltration.
3. the method for claim 1, by depending on the multidimensional equation of liquid velocity of the quantity of production in described place and Injection Well, permeability, lamination and banded inhomogeneities, the consumption of reserves, water content, well, the extent function value of the oil recovery method of the location calculations application of advanced had nothing to do for each and hydrodynamic force.
4. the method for claim 1, be included in the described place irrelevant with hydrodynamic force, application has the advanced collecting method of the extent function value similar to application of advanced oil recovery method, to increase the average of the water-petroleum emulsion resistance in described place.
5. the method for claim 1, is included in application of advanced collecting method in well until water-petroleum emulsion resistance reaches and is stabilized in maximum value.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009112697/03A RU2390628C1 (en) | 2009-04-06 | 2009-04-06 | Method of oil-field management |
| RU2009112697 | 2009-04-06 | ||
| PCT/RU2010/000153 WO2010134843A1 (en) | 2009-04-06 | 2010-04-02 | Method for monitoring the oil-field development |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102341563A CN102341563A (en) | 2012-02-01 |
| CN102341563B true CN102341563B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080010651.9A Expired - Fee Related CN102341563B (en) | 2009-04-06 | 2010-04-02 | Method for monitoring oil-field development |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120024524A1 (en) |
| EP (1) | EP2418349A4 (en) |
| CN (1) | CN102341563B (en) |
| RU (1) | RU2390628C1 (en) |
| WO (1) | WO2010134843A1 (en) |
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| CN103247215B (en) * | 2013-04-12 | 2015-08-05 | 中国石油天然气股份有限公司 | Low-permeability oil deposit commingling production physical simulation system and method |
| EP3097146B1 (en) * | 2014-01-23 | 2019-12-25 | Dow Global Technologies LLC | Rigid polyurethane foam having a small cell size |
| CN104453807B (en) * | 2014-10-29 | 2016-10-19 | 中国海洋石油总公司 | A kind of oil field injection and extraction well group water drive channelling method of discrimination |
| CN105865982B (en) * | 2016-04-20 | 2019-01-18 | 中国石油天然气股份有限公司 | Imbibition agent seepage velocity tester |
| US10570717B2 (en) | 2016-09-26 | 2020-02-25 | International Business Machines Corporation | Controlling operation of a steam-assisted gravity drainage oil well system utilizing continuous and discrete control parameters |
| US10577907B2 (en) | 2016-09-26 | 2020-03-03 | International Business Machines Corporation | Multi-level modeling of steam assisted gravity drainage wells |
| US10267130B2 (en) * | 2016-09-26 | 2019-04-23 | International Business Machines Corporation | Controlling operation of a steam-assisted gravity drainage oil well system by adjusting controls to reduce model uncertainty |
| US10614378B2 (en) | 2016-09-26 | 2020-04-07 | International Business Machines Corporation | Cross-well allocation optimization in steam assisted gravity drainage wells |
| US10378324B2 (en) | 2016-09-26 | 2019-08-13 | International Business Machines Corporation | Controlling operation of a steam-assisted gravity drainage oil well system by adjusting controls based on forecast emulsion production |
| US10352142B2 (en) | 2016-09-26 | 2019-07-16 | International Business Machines Corporation | Controlling operation of a stem-assisted gravity drainage oil well system by adjusting multiple time step controls |
| CN109594968B (en) * | 2017-09-28 | 2022-04-12 | 中国石油化工股份有限公司 | Shale gas multistage fracturing horizontal well post-fracturing fracture parameter evaluation method and system |
| EP3755873A1 (en) * | 2018-02-21 | 2020-12-30 | Saudi Arabian Oil Company | Permeability prediction using a connected reservoir regions map |
| CN109034447B (en) * | 2018-06-14 | 2022-07-05 | 中国石油天然气股份有限公司 | Method and device for predicting water-drive reservoir water-cut rate-of-rise change |
| RU2717326C1 (en) * | 2019-08-30 | 2020-03-20 | федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" | Method of formation coverage evaluation by development system |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20120024524A1 (en) | 2012-02-02 |
| RU2390628C1 (en) | 2010-05-27 |
| EP2418349A1 (en) | 2012-02-15 |
| EP2418349A4 (en) | 2015-04-22 |
| WO2010134843A1 (en) | 2010-11-25 |
| CN102341563A (en) | 2012-02-01 |
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