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CN109025958B - Method, device and terminal for measuring produced fluid during oil field physical simulation flooding experiment - Google Patents

Method, device and terminal for measuring produced fluid during oil field physical simulation flooding experiment Download PDF

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CN109025958B
CN109025958B CN201810659736.8A CN201810659736A CN109025958B CN 109025958 B CN109025958 B CN 109025958B CN 201810659736 A CN201810659736 A CN 201810659736A CN 109025958 B CN109025958 B CN 109025958B
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volume
oil
produced
core
weight
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CN109025958A (en
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李云龙
曲占庆
叶卫保
温鸿滨
宋岱锋
臧伟
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Shandong Shida Oilfield Technical Services Co ltd
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Shandong Shida Oilfield Technical Services Co ltd
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B43/20—Displacing by water
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

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Abstract

本发明提供一种油田物理模拟驱油实验过程中产出液的测量方法、装置及终端，所述方法中，首先根据需要测定的时间段内的出油量，确定这一时间段内岩心夹持器及其夹持物的重量变化，根据这一时间段内的重量变化等于进入岩心的水的体积的重量减去产出液体积的重量，得到产出液的密度，再根据产出液的重量等于产出液中水的重量加上产出液中油的重量，而重量又等于体积与密度的乘积，假设产出液中油的体积为x，根据上述条件得到x的数值。本申请根据对水驱油过程中流速及重量的测定，确定出产出液中油的体积，避免了因产出油量过少呈油膜或者油珠形式存在时人工读取不便，误差大的情况，实现了对油田物理模拟驱油实验高含水阶段过程中产出液精准读取。

Figure 201810659736

The invention provides a method, device and terminal for measuring the produced fluid in the process of oil field physical simulation oil displacement experiment. In the method, firstly, according to the oil output in the time period that needs to be measured, the core sandwich in this time period is determined. The weight change of the holder and its clamps, according to the weight change in this time period is equal to the weight of the volume of water entering the core minus the weight of the volume of the produced fluid, to obtain the density of the produced fluid, and then according to the weight of the produced fluid The weight is equal to the weight of the water in the produced fluid plus the weight of the oil in the produced fluid, and the weight is equal to the product of the volume and the density. Assuming that the volume of the oil in the produced fluid is x, the value of x is obtained according to the above conditions. In this application, the volume of oil in the produced fluid is determined based on the measurement of the flow rate and weight in the process of water flooding, which avoids the inconvenience of manual reading and large errors when the produced oil is too small in the form of oil film or oil droplets , to achieve accurate reading of the produced fluid during the high water cut stage of the oilfield physical simulation flooding experiment.

Figure 201810659736

Description

Method, device and terminal for measuring produced liquid in oil field physical simulation oil displacement experiment process
Technical Field
The invention relates to the technical field of oil and gas field development, in particular to a method, a device and a terminal for measuring produced liquid in an oil field physical simulation oil displacement experiment process.
Background
The oil field physical simulation oil displacement experiment is a common indoor experiment in the field of oil and gas field development, plays an important role in the aspects of analyzing the stratum condition, researching the stratum fluid distribution, evaluating the plugging agent and improving the recovery rate performance and the like, and can provide reliable data support for the subsequent computer numerical simulation expansion.
The oil field physical simulation oil displacement experiment is used as a basic experiment with high repetition rate, and the data accuracy is of particular importance. With the continuous deepening of oil reservoir development, continental facies oil fields in China comprehensively enter an ultrahigh water cut period, and water injection development oil fields face unprecedented severe situations. The water content of the high permeable layer rises year by year, and the comprehensive water content of some oil fields even exceeds 96 percent, so that the corresponding indoor oil field physical simulation oil displacement experiment also needs water displacement to reach the water content of more than 96 percent. The oil displacement experiment of the indoor oil field physical simulation can monitor the data of the volume of injected liquid, the flow of the injected liquid, the volume of produced oil, the volume of produced water and the like by changing the displacement pressure gradient, and the influence of different displacement pressure gradients on the oil displacement efficiency can be obtained. When the water content is driven to be higher than 96%, an important monitoring value, namely the oil output volume, is difficult to read or has excessive errors due to the fact that the volume is too small.
Taking the example that the produced liquid is collected by a 20ML scale test tube which is common in a laboratory, when the water content reaches over 96 percent, the produced oil exists in the form of an oil film due to too small amount and is not easy to read. In addition, the produced oil may be hung in the form of oil droplets during the collection of the produced fluid, which may cause an error in reading the oil outlet volume each time. And because the data volume is great, can make the volume of producing oil great change after reading the error accumulation every time, be difficult to realize accurate test, direct influence experiment's precision can lead to whole indoor oil field physical simulation displacement of reservoir oil experimental result to lose the reference value seriously.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method, a device and a terminal for measuring produced fluid in the oil field physical simulation oil displacement experiment process, which effectively avoid the problem that the produced fluid is difficult to read accurately in a high water-cut stage, and realize accurate reading of the produced fluid in the oil field physical simulation oil displacement experiment process in the high water-cut stage, thereby improving the accuracy and reliability of the experiment.
The invention is realized by the following technical scheme;
in a first aspect, the invention provides a method for measuring a produced liquid in an oil field physical simulation oil displacement experimental process, which comprises the following steps:
and acquiring the weights of the core holder and the clamped objects thereof in the water flooding process in real time.
The weight of the core holder and the holding object thereof is the total weight of the core holder, the core held by the core holder, the liquid filled in the core and the like, and the weight of the liquid in the core is actually obtained because the weight of the core holder and the core is not changed.
Obtaining the inlet flow rate q of the rock core in the water flooding process in real timeIntoAnd outlet flow rate qGo out. Inlet flow rate qIntoNamely the flow velocity of water entering the rock core in the water flooding process and the outlet flow velocity qGo outNamely the flow rate of the produced liquid in the water flooding process.
According to the inlet flow rate q of the coreIntoOutlet flow rate qGo outAnd the cross section area S of the core, and determining the volume of water entering the core and the volume of produced liquid in the water flooding process. The cross-sectional areas S at the inlet and outlet of the core were equal and remained unchanged. I.e. volume V of water entering the coreInto＝qIntoΔ t S, likewise, volume of the effluent VGo out＝qGo out*Δt*S。
And determining the density of the produced liquid according to the weight change of the core holder, the volume of water entering the core and the volume of the produced liquid.
And setting the volume of the oil in the produced liquid as x, and determining the volume of the oil in the produced liquid according to the density of the produced liquid and the volume of the produced liquid.
Preferably, the determining the density of the produced fluid according to the core holder and the weight change of the core holder with respect to the held object, the volume of water entering the core and the volume of the produced fluid comprises:
determining the weight change of the core holder and the clamped object thereof in delta t time: Δ m ═ m-mt。
M heretThe weight of the core holder and the clamped object at the time t, m is the weight of the core holder and the clamped object at the time t-delta t, and the difference between the weight of the core holder and the clamped object at the time delta t and the weight of the core holder and the clamped object at the time delta t.
And determining the density of the produced liquid according to the weight change delta m of the core holder and the clamped objects thereof, the volume of the water entering the core, the volume of the produced liquid and the density of the water.
When needed to measureWhen measuring the oil output within a certain period of time, the weight change of the core holder and the holder during the period of time, namely the change of the liquid in the core is firstly determined, namely the change of the liquid in the core is measuredIntoρWater (W)-VGo outρMixing ofΔ m is known, VIntoAnd VGo outThe density of water, ρ, is knownWater (W)It is also known that the density of the produced liquid can be obtained according to the above formula
Figure BDA0001706422010000021
Preferably, the setting the volume of oil in the produced fluid as x, and the determining the volume of oil in the produced fluid according to the density of the produced fluid and the volume of the produced fluid comprises:
the volume of oil in the produced liquid was set to x.
And determining the volume of water in the produced fluid according to the volume of the produced fluid and the set volume of oil in the produced fluid.
And determining the value of the volume x of the oil in the produced fluid according to the volume of the produced fluid, the density of the produced fluid, the set volume of the oil in the produced fluid, the density of the oil, the volume of the water in the produced fluid and the density of the water.
In the produced fluid VGo outIn a known situation, the volume of oil in the produced fluid is set as x, and the volume of water in the produced fluid is set as VGo outX, the sum of the weight of water in the produced liquid and the weight of oil in the produced liquid is the total weight of the produced liquid, namely X ρOil+ρWater (W)(VGo out-x)＝ρMixing ofVGo outAccording to the above formula, the method can obtain
Figure BDA0001706422010000031
According to the invention, by measuring the weight of the core holder and the holding objects thereof in real time and measuring the flow rate of water entering the core and the flow rate of the produced liquid in real time, the accurate numerical value of the volume of oil in the produced liquid is obtained through calculation, the accurate numerical value of the volume can be obtained even with a small oil amount, and the situations that the oil volume is difficult to read and a large error occurs due to the phenomena that the produced oil is hung on the wall in the form of oil drops in the process of collecting the produced liquid are avoided. Accurate testing is realized, and the accuracy and reliability of the physical simulation oil displacement experiment of the indoor oil field are ensured.
In a second aspect, the present invention provides a device for measuring produced fluid in an oil field physical simulation flooding experimental process, for implementing the method, wherein the device comprises:
a weight acquisition module: the device is used for acquiring the weight of the core holder and the weight of the held objects thereof in the water flooding process in real time;
a flow rate acquisition module: inlet flow rate q for acquiring core in water flooding process in real timeIntoAnd outlet flow rate qGo out；
A first volume determination module: the device is used for determining the volume of water entering the core and the volume of produced liquid in the water flooding process according to the inlet flow velocity and the outlet flow velocity of the core and the cross sectional area of the core;
a density determination module: the density of the produced liquid is determined according to the weight change of the core holder and the holding objects thereof, the volume of water entering the core and the volume of the produced liquid;
a second volume determination module: the volume of the oil in the produced liquid is set to be x, and the volume of the oil in the produced liquid is determined according to the density of the produced liquid and the volume of the produced liquid.
Preferably, the density determining module includes:
weight change determination submodule: for determining the weight change of the core holder and its holder over Δ t Δ t: Δ m ═ m-mt；
A density determination submodule: and the density of the produced liquid is determined according to the weight change delta m of the core holder and the clamped objects thereof, the volume of the water entering the core, the volume of the produced liquid and the density of the water.
Preferably, the second volume determination module includes:
a first volume determination submodule: determining the value of the volume x of the oil in the produced fluid according to the volume of the produced fluid, the density of the produced fluid, the set volume of the oil in the produced fluid, the density of the oil, the volume of the water in the produced fluid and the density of the water;
a second volume determination submodule: and the volume of the water in the produced fluid is determined according to the volume of the produced fluid and the set volume of the oil in the produced fluid.
In a third aspect, the present invention further provides a terminal, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the weight of the core holder and the weight of the clamped objects thereof in the water flooding process in real time;
acquiring the inlet flow velocity and the outlet flow velocity of a rock core in the water flooding process in real time;
determining the volume of water entering the core and the volume of produced liquid in the water flooding process according to the inlet flow velocity and the outlet flow velocity of the core and the cross sectional area of the core;
determining the density of the produced liquid according to the weight change of the core holder and the holders thereof, the volume of water entering the core and the volume of the produced liquid;
and setting the volume of the oil in the produced liquid as x, and determining the volume of the oil in the produced liquid according to the density of the produced liquid and the volume of the produced liquid.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the invention provides a method, a device and a terminal for measuring output liquid in the oil field physical simulation oil displacement experiment process, wherein the method comprises the steps of firstly determining the weight change of a core holder and a holder thereof in a time period according to the oil output amount in the time period required to be measured, subtracting the weight of the volume of the output liquid from the weight of the volume of water entering a core according to the weight change in the time period, obtaining the density of the output liquid under the condition that the flow rate of the water entering the core and the flow rate of the output liquid are known, adding the weight of oil in the output liquid to the weight of water in the output liquid according to the weight of the output liquid, wherein the weight of the output liquid is equal to the product of the volume and the density, namely the weight of the output liquid is equal to the product of the density of the output liquid multiplied by the volume of the output liquid, and is equal to the product of the volume of the output liquid multiplied by the density of water and the weight of oil in the output liquid multiplied by the volume of the oil, and measuring the volume of the output liquid, When the density is known, and the density of water and oil is known, the volume of oil in the produced liquid is added as x, and the accurate value of x can be known according to the conditions. This application is according to the survey to the oil displacement of reservoir oil in-process velocity of flow that is weight, confirm the volume of producing in the liquid through certain law, the volume of producing in the liquid is very little, when appearing with the oil film form or with the form of oil droplet wall built-up, also can obtain the volume of producing in the liquid, it is inconvenient to have avoided artifical the reading when being oil film or oil droplet form to exist because of the output oil volume is too little, the big condition of error, the accurate reading of the high moisture stage in-process production liquid of oil field physical simulation oil displacement experiment has been realized, thereby improve the precision and the reliability of experiment.
Drawings
For a clearer explanation of the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for measuring a produced liquid in an oil field physical simulation flooding experimental process according to an embodiment of the present invention.
Fig. 2 is a schematic volume diagram of produced liquid oil obtained by using a method for measuring produced liquid in an oil field physical simulation flooding experimental process provided by an embodiment of the invention.
Figure 3 is a schematic representation of the oil volume in the output manually read.
FIG. 4 is a graph comparing the volume of produced oil obtained using the method provided by the examples of the present invention and using the manual power method.
Fig. 5 is a schematic structural diagram of a device for measuring produced fluid in an oil field physical simulation flooding experimental process according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a density determination module of a device for measuring a produced liquid in an oil field physical simulation flooding experimental process according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a second volume determining module of the device for measuring the output liquid in the oil field physical simulation flooding experimental process according to the embodiment of the present invention.
FIG. 8 is a schematic diagram of a device for measuring produced fluid during an oilfield physical simulation flooding experiment according to an exemplary embodiment.
Fig. 9 is a block diagram illustrating a terminal according to an example embodiment.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.
Referring to fig. 1, a schematic flow chart of a method for measuring a produced liquid in an oil field physical simulation flooding experimental process according to an embodiment of the present invention is shown.
As can be seen from fig. 1, the method for measuring the output liquid in the oil field physical simulation flooding experimental process comprises the following steps:
s110: acquiring the weight of the core holder and the weight of the clamped objects thereof in the water flooding process in real time; because the weight is obtained in real time or at regular intervals, when the weight difference needs to be obtained at regular intervals, the obtained weights at two moments are subtracted. It may be set to take the weight once every certain time interval and calculate the weight difference between two adjacent times.
S120: acquiring the inlet flow velocity and the outlet flow velocity of a rock core in the water flooding process in real time; corresponding to the step S110, the flow rate may be obtained at regular intervals, and the flow rate measured each time is multiplied by the interval time between two adjacent times, and then multiplied by the cross-sectional area to obtain the volume of the adjacent interval time.
S130: according to the inlet flow velocity and the outlet flow velocity of the core and the cross-sectional area of the core,determining the volume of water entering the rock core and the volume of a produced liquid in the water flooding process; because the inlet flow rate and the outlet flow rate are obtained in real time, after the interval time is determined, the interval time can be according to VInto＝qIntoΔ t S and VGo out＝qGo outΔ t S obtains the volume V of water entering the core over the Δ t timeIntoAnd volume V of the produced liquidGo out。
S140: determining the density of the produced liquid according to the weight change of the core holder and the holders thereof, the volume of water entering the core and the volume of the produced liquid;
the weight change of the two moments is the weight change of the liquid in the core, namely that the delta m is VIntoρWater (W)-VGo outρMixing ofSubtracting the weights at the front and back moments to obtain Δ m, VIntoAnd VGo outThe density of water, ρ, is knownWater (W)It is also known that the density of the produced liquid can be obtained according to the above formula
Figure BDA0001706422010000061
S150: and setting the volume of the oil in the produced liquid as x, and determining the volume of the oil in the produced liquid according to the density of the produced liquid and the volume of the produced liquid.
In the produced fluid VGo outIn a known situation, the volume of oil in the produced fluid is set as x, and the volume of water in the produced fluid is set as VGo outX, the sum of the weight of water in the produced liquid and the weight of oil in the produced liquid is the total weight of the produced liquid, namely X ρOil+ρWater (W)(VGo out-x)＝ρMixing ofVGo outThe volume of the oil in the produced fluid can be obtained according to the formula
Figure BDA0001706422010000062
The method is applied to an indoor physical simulation experiment of the oil displacement efficiency and the water injection multiple of the artificial rock core, and the specific process is as follows:
the experimental conditions are as follows:
quartz sand epoxy resin cemented core model: permeability 1000md
Experimental oil: island crude oil with viscosity of 50mPa.s at 60 DEG C
Water for experiment: the mineralization degree of island sewage is 5500mg/L
Experiment temperature: 60 deg.C
The experimental steps are as follows:
(1) vacuumizing the cemented rock core model for 3-4 hours, and then measuring the pore volume of the cemented rock core by using rock core saturated island sewage (experimental water);
(2) placing the cemented rock core of the saturated island sewage into a rock core holder and placing the cemented rock core on a real-time weighing device, measuring the water phase permeability of the rock core by a constant speed method, and measuring an initial value by the weighing device after the pressure is stable;
(3) saturated oil: cementing the crude oil of the rock core saturated island, and calculating the original oil saturation and the irreducible water saturation;
(4) aging oil: putting the rock core and the holder which are completely saturated with the crude oil into a constant temperature box at 60 ℃, and aging the crude oil for 48 hours;
(5) oil displacement by water: placing the holder on a real-time weighing device, performing water flooding at a displacement speed of 2ml/min, and finishing the water flooding when the water flooding reaches 100 pore volumes, wherein in the water flooding process:
a. measuring the volume of oil and water in the produced liquid by adopting the method;
b. and (3) collecting the effluent by using a 20ml graduated test tube, gradually collecting the effluent by using a large graduated test tube after the water content of the water-driven pump is 98%, and reading the volume of oil and water in the produced fluid.
The volume results obtained by the two methods are shown in fig. 2 and fig. 3, and the comparison of the two methods is shown in fig. 4, and tests show that the volume of the produced oil obtained by the method provided by the invention is more accurate, and the method is more favorable for the smooth performance of a water flooding experiment.
In the embodiment of the disclosure, the volume of the produced oil can be accurately obtained regardless of the size, the inconvenience of manual reading and the large error caused by the fact that the produced oil is too little in the form of an oil film or oil drops are avoided, and the accurate reading of the produced liquid in the high-water-content phase process of the oil field physical simulation oil displacement experiment is realized, so that the accuracy and the reliability of the experiment are improved.
Based on the same disclosure concept, the embodiment of the disclosure also provides a device for measuring the output liquid in the oil field physical simulation oil displacement experiment process, which can be used for realizing the method, and the device comprises:
the weight acquisition module 10: the device is used for acquiring the weight of the core holder and the weight of the held objects thereof in the water flooding process in real time;
in the embodiment of the present disclosure, the weight obtaining module 10 may be configured to obtain the weight once every certain time.
The flow rate acquisition module 20: inlet flow rate q for acquiring core in water flooding process in real timeIntoAnd outlet flow rate qGo out；
In the embodiment of the present disclosure, the flow rate obtaining module 20 may be configured to obtain the flow rate once every a certain time interval, and the flow rate obtaining module 20 is the same as the time interval set in the weight obtaining module 10, and measures the flow rate corresponding to the weight change.
The first volume determination module 30: the device is used for determining the volume of water entering the core and the volume of produced liquid in the water flooding process according to the inlet flow velocity and the outlet flow velocity of the core and the cross sectional area of the core;
in the embodiment of the present disclosure, the flow rate obtaining module 20 is configured to obtain the flow rate once at a certain interval, and the first volume determining module 30 calculates the volume V of the water entering the core according to the flow rate obtained by the flow rate obtaining module 20IntoAnd volume V of the produced liquidGo outThe first volume determination module 30 may be preset to calculate the volume V of water entering the core using the flow rate obtained from the previous measurement times the time difference between the previous and subsequent flow rate measurements times the cross-sectional area of the coreIntoAnd volume V of the produced liquidGo outIt may also be preset to calculate the volume V of water entering the core by multiplying the flow rate obtained in the latter measurement by the time difference between the two previous and subsequent flow rate measurements and by the cross-sectional area of the coreIntoAnd volume V of the produced liquidGo out。
The density determination module 40: the core holder is used for determining the density of the produced liquid according to the weight change of the core holder and the holding objects thereof, the volume of water entering the core and the volume of the produced liquid in the water flooding process;
the density determination module 40 determines the volume V of water entering the core based on the volume V of water determined by the first volume determination module 30IntoAnd volume V of the produced liquidGo outAnd the difference Δ m between two adjacent weights obtained by the weight obtaining module 10, according to the Δ m ═ VIntoρWater (W)-VGo outρMixing ofCalculating the density of the output liquid
Figure BDA0001706422010000071
The second volume determination module 50: the volume of the oil in the produced liquid is set to be x, and the volume of the oil in the produced liquid is determined according to the density of the produced liquid and the volume of the produced liquid.
The first volume determining module 30 has determined the total volume of the produced fluid and the volume of oil in the predetermined produced fluid in the second volume determining module 50 is calculated as
Figure BDA0001706422010000081
The volume of produced oil is directly obtained according to the obtained data.
In the embodiment of the present disclosure, the weight obtaining module 10 obtains and stores the weight in real time, the flow rate obtaining module 20 obtains and stores the flow rate in real time, the first volume determining module 30, the density determining module 40, and the second volume determining module 50 may have multiple modes, and may calculate along with the obtaining of the values by the weight obtaining module 10 and the flow rate obtaining module 20, or may calculate uniformly after obtaining all the values, and may calculate one set of data at a time, or may calculate multiple sets of data at the same time, or may select different modes for calculation as needed.
In one embodiment of the present disclosure, the density determination module 30 may include:
weight change determination submodule 31: for determining the weight change of the core holder and its holder over a time Δ t: Δ m ═ m-mt；
The weight obtaining module 10 obtains the weight value only twice, and to obtain the density of the produced liquid, the weight change determining submodule 31 first calculates the weight change according to the weight value obtained by the weight obtaining module 10.
Density determination submodule 32: and the density of the produced liquid is determined according to the weight change delta m of the core holder and the clamped objects thereof, the volume of the water entering the core, the volume of the produced liquid and the density of the water.
The density determination submodule 32 determines the weight change from the weight change determination submodule 31, and the volume V of water entering the core from the first volume determination moduleIntoAnd volume V of the produced liquidGo outAnd calculating to obtain the density of the output liquid.
In one embodiment of the present disclosure, the second volume determination module 50 may be directly set to produce a volume of oil of
Figure BDA0001706422010000082
In an embodiment of the present disclosure, the second volume determination module 50 may further include:
the first volume determination sub-module 51: and determining the value of the volume x of the oil in the produced fluid according to the volume of the produced fluid, the density of the produced fluid, the set volume of the oil in the produced fluid, the density of the oil, the volume of the water in the produced fluid and the density of the water. The first volume determination submodule 51 may preset the volume of oil in the produced fluid as x, and may obtain the equation according to the set x: x rhoOil+ρWater (W)(VGo out-x)＝ρMixing ofVGo outCan be calculated according to the formula
Figure BDA0001706422010000083
The volume of oil produced in the first volume determination submodule 51 may also be set directly to
Figure BDA0001706422010000091
The second volume determination sub-module 52: the volume of water in the produced liquid is determined according to the volume of the produced liquid and the volume of oil in the produced liquid; volume of the output liquid is VGo outThe volume of oil is x, the second volume determination submodule 52 determines the volume of water in the produced fluid to be VGo out-X。
Specifically, the device of the present invention may include a real-time weighing device 60, a flow rate measuring device 70, and a data analyzing device 80, where the real-time weighing device 60 and the flow rate measuring device 70 are both electrically connected to the data analyzing device 80, the real-time weighing device 60 is configured to weigh the core holder 100 and the weight of the held objects thereof in real time, and transmit the weighing results to the data analyzing device 80, the flow rate measuring device 70 may be a flow rate measurer 72 and a flow rate measurer 71 respectively located at an outlet and an inlet of the core, and is configured to measure the inlet flow rate and the outlet flow rate of the core during the water flooding process in real time, and transmit the measuring results to the data analyzing device 80, and the data analyzing device 80 performs analysis and calculation according to the received data, so as to obtain the density and the volume of the produced liquid, and the volume of the oil in the produced liquid. The data analysis device 80 may include a server and a display, the real-time weighing device 60 and the flow rate measuring device 70 are respectively electrically connected to the server, the measurement result is transmitted to the server, and the server performs analysis and calculation according to the received data and displays the data through the display, so that people can conveniently check and operate the server.
The apparatus may also include an incubator 90: for maintaining the temperature of the real-time weighing device 60, the flow rate measuring device 70 and the core holder 100. The real-time weighing device 60, the core holder 100 and the flow rate measuring device 70 are all located in the incubator 90.
Fig. 9 is a block diagram illustrating a terminal 1300 according to an example embodiment. For example, terminal 1300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and so forth.
Referring to fig. 9, terminal 1300 can include one or more of the following components: a processing component 1302, a memory 1304, a power component 1306, a multimedia component 1308, an audio component 1310, an input/output (I/O) interface 1312, a sensor component 1314, and a communication component 1316.
Processing component 1302 generally controls overall operation of terminal 1300, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1302 may include one or more processors 1320 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 1302 can include one or more modules that facilitate interaction between the processing component 1302 and other components. For example, the processing component 1302 may include a multimedia module to facilitate interaction between the multimedia component 1308 and the processing component 1302.
Memory 1304 is configured to store various types of data to support operation at terminal 1300. Examples of such data include instructions for any application or method operating on terminal 1300, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1304 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Power supply component 1306 provides power to the various components of terminal 1300. Power components 1306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for terminal 1300.
The multimedia component 1308 includes a screen between the terminal 1300 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1308 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the terminal 1300 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 1310 is configured to output and/or input audio signals. For example, audio component 1310 includes a Microphone (MIC) configured to receive external audio signals when terminal 1300 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 1304 or transmitted via the communication component 1316. In some embodiments, the audio component 1310 also includes a speaker for outputting audio signals.
The I/O interface 1312 provides an interface between the processing component 1302 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
Sensor assembly 1314 includes one or more sensors for providing various aspects of state assessment to terminal 1300. For example, sensor assembly 1314 can detect an open/closed state of terminal 1300, the relative positioning of components, such as a display and keypad of terminal 1300, sensor assembly 1314 can also detect a change in position of terminal 1300 or a component of terminal 1300, the presence or absence of user contact with terminal 1300, orientation or acceleration/deceleration of terminal 1300, and a change in temperature of terminal 1300. The sensor assembly 1314 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 1316 is configured to facilitate communications between the terminal 1300 and other devices in a wired or wireless manner. The terminal 1300 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1316 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communications component 1316 also includes a Near Field Communications (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the terminal 1300 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 1304 comprising instructions, executable by the processor 1320 of the terminal 1300 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium having instructions therein which, when executed by a processor of a terminal, enable the terminal to perform a method of measuring production fluids during an oilfield physical simulation flooding experiment, the method comprising:
acquiring the weight of the core holder and the weight of the clamped objects thereof in the water flooding process in real time;
acquiring the inlet flow velocity and the outlet flow velocity of a rock core in the water flooding process in real time;
determining the volume of water entering the core and the volume of produced liquid in the water flooding process according to the inlet flow velocity and the outlet flow velocity of the core and the cross sectional area of the core;
determining the density of the produced liquid according to the weight change of the core holder and the holders thereof, the volume of water entering the core and the volume of the produced liquid;
and setting the volume of the oil in the produced liquid as x, and determining the volume of the oil in the produced liquid according to the density of the produced liquid and the volume of the produced liquid.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims (3)

1. A method for measuring output liquid in an oil field physical simulation oil displacement experimental process is characterized by comprising the following steps:
acquiring the weight of the core holder and the weight of the clamped objects thereof in the water flooding process in real time;
acquiring the inlet flow velocity and the outlet flow velocity of a rock core in the water flooding process in real time;
determining the volume of water entering the core and the volume of produced liquid in the water flooding process according to the inlet flow velocity and the outlet flow velocity of the core and the cross sectional area of the core;
determining the density of the produced liquid according to the weight change of the core holder and the holders thereof, the volume of water entering the core and the volume of the produced liquid;
setting the volume of oil in the produced liquid as x, and determining the volume of the oil in the produced liquid according to the density of the produced liquid and the volume of the produced liquid;
determining the density of the produced liquid according to the weight change of the core holder and the holders thereof, the volume of water entering the core and the volume of the produced liquid comprises the following steps:
determining the weight change of the core holder over the delta t time: Δ m ═ m-mt；
Determining the density of the produced liquid according to the weight change delta m of the core holder and the clamped objects thereof, the volume of the water entering the core, the volume of the produced liquid and the density of the water;
mtmeans the weight of the core holder and the holding object at the time of t, and m is t-deltathe weight of the core holder and the holding object thereof at the time t;
setting the volume of oil in the produced liquid as x, and determining the volume of oil in the produced liquid according to the density of the produced liquid and the volume of the produced liquid comprises the following steps:
setting the volume of oil in the produced liquid as x;
determining the volume of water in the produced liquid according to the volume of the produced liquid and the set volume of oil in the produced liquid;
and determining the value of the volume x of the oil in the produced fluid according to the volume of the produced fluid, the density of the produced fluid, the set volume of the oil in the produced fluid, the density of the oil, the volume of the water in the produced fluid and the density of the water.
2. A measuring device for implementing the method for measuring the output liquid in the oil field physical simulation oil displacement experimental process according to claim 1, is characterized by comprising the following steps:
a weight acquisition module: the device is used for acquiring the weight of the core holder and the weight of the held objects thereof in the water flooding process in real time;
a flow rate acquisition module: the system is used for acquiring the inlet flow rate q-in and the outlet flow rate q-out of the rock core in the water flooding process in real time;
a first volume determination module: the device is used for determining the volume of water entering the core and the volume of produced liquid in the water flooding process according to the inlet flow velocity and the outlet flow velocity of the core and the cross sectional area of the core;
a density determination module: the density of the produced liquid is determined according to the weight change of the core holder and the holding objects thereof, the volume of water entering the core and the volume of the produced liquid;
a second volume determination module: the volume of the oil in the produced liquid is set to be x, and the volume of the oil in the produced liquid is determined according to the density of the produced liquid and the volume of the produced liquid;
the density determination module includes:
weight change determination submodule: for determining the weight change of the core holder and its holder over a time Δ t: Δ m ═ m-mt；
A density determination submodule: the density of the produced liquid is determined according to the weight change delta m of the core holder and the clamped objects thereof, the volume of water entering the core, the volume of the produced liquid and the density of the water;
mtthe weight of the core holder and the holding object thereof at the time t, and m is the weight of the core holder and the holding object thereof at the time t-delta t;
the second volume determination module includes:
a first volume determination submodule: determining the value of the volume x of the oil in the produced fluid according to the volume of the produced fluid, the density of the produced fluid, the set volume of the oil in the produced fluid, the density of the oil, the volume of the water in the produced fluid and the density of the water;
a second volume determination submodule: and the volume of the water in the produced fluid is determined according to the volume of the produced fluid and the set volume of the oil in the produced fluid.
3. A terminal, comprising:
a processor;
a memory for storing processor-executable instructions;
the processor executes the method for measuring the output liquid in the oil field physical simulation flooding experimental process according to claim 1.
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Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1007013B (en) * 1987-06-25 1990-02-28 清华大学 Apparatus for automatic measurement of contents of oil and water in mixture there of by weighing
CN1065958C (en) * 1996-11-19 2001-05-16 窦剑文 Three-phase flow meter for oil, gas and water and measuring method thereof
US6234030B1 (en) * 1998-08-28 2001-05-22 Rosewood Equipment Company Multiphase metering method for multiphase flow
RU2158418C1 (en) * 1999-03-29 2000-10-27 Открытое акционерное общество "Самаранефтехимавтоматика" Apparatus for measuring mass, volume, density and level of liquid products
WO2009030870A1 (en) * 2007-09-05 2009-03-12 University Of Leeds Multi phase flow measurement system
US8532943B2 (en) * 2009-03-24 2013-09-10 Cameron International Corporation Method and apparatus for the measurement of the mass fraction of water in oil-water mixtures
EP2601377A1 (en) * 2010-08-06 2013-06-12 BP Exploration Operating Company Limited Apparatus and method for testing multiple samples
CN104142290B (en) * 2013-05-09 2016-08-03 中国石油化工股份有限公司 A kind of rock sample cumulative volume variable density determinator and method
CN204314270U (en) * 2014-11-07 2015-05-06 中国石油化工股份有限公司 A kind of single tube back-up sand formula heterogeneous core logistics organizations device
CN104675393B (en) * 2014-12-18 2018-04-06 四川光亚聚合物化工有限公司 A kind of rock core displacement control method and system
CN104963664B (en) * 2015-06-12 2017-07-21 中国石油大学(北京) Physical simulation experiment method in big liquid measure constant pressure displacement room
CN106323402A (en) * 2015-06-29 2017-01-11 中国石油天然气股份有限公司 Flow measuring method and device for rock core displacement experiment
CN205484403U (en) * 2016-01-05 2016-08-17 西南石油大学 Device with rock core holder survey velocity of flow is together used in laboratory
CN107063964A (en) * 2017-03-20 2017-08-18 西南石油大学 A kind of automatic measurement calculates the driving device of rock core physical parameter
CN106970005B (en) * 2017-05-05 2020-05-08 中国石油化工股份有限公司 Method for measuring water content of crude oil
CN207066913U (en) * 2017-08-22 2018-03-02 西南石油大学 A kind of multi-functional rock core displacement test device
CN107576588A (en) * 2017-09-04 2018-01-12 延长油田股份有限公司 A kind of method that water content in crude oil is measured using hydrometer method

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Denomination of invention: Method, device, and terminal for measuring the produced fluid in the process of oilfield physical simulation oil displacement experiment

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