CN117345197A - Water-blocking finding switch, pipe column, water content and production determining method and equipment thereof - Google Patents
Water-blocking finding switch, pipe column, water content and production determining method and equipment thereof Download PDFInfo
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- CN117345197A CN117345197A CN202210743940.4A CN202210743940A CN117345197A CN 117345197 A CN117345197 A CN 117345197A CN 202210743940 A CN202210743940 A CN 202210743940A CN 117345197 A CN117345197 A CN 117345197A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 280
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000000903 blocking effect Effects 0.000 claims abstract description 87
- 230000005514 two-phase flow Effects 0.000 claims abstract description 83
- 239000007788 liquid Substances 0.000 claims description 33
- 238000004590 computer program Methods 0.000 claims description 21
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 230000005284 excitation Effects 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 12
- 230000005684 electric field Effects 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 14
- 238000005259 measurement Methods 0.000 description 9
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- 239000012530 fluid Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 5
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- 230000008569 process Effects 0.000 description 4
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- 238000009826 distribution Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
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- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
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- 239000003129 oil well Substances 0.000 description 1
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Classifications
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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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
- E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
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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
- E21B43/20—Displacing by water
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
Abstract
The application discloses a water finding and blocking switch, a pipe column, a water content and production determining method and equipment thereof. The method comprises the following steps: the mass flow measuring device is used for measuring the real-time mass flow of the two-phase flow to be measured flowing through the water finding and blocking switch, wherein the two-phase flow to be measured comprises water and oil; the impedance sensing device is used for measuring the real-time equivalent resistance of the two-phase flow to be measured flowing through the water finding and blocking switch; and the water plugging device is used for executing water plugging operation according to the real-time water content of the two-phase flow to be detected and the mass flow, wherein the real-time water content is acquired based on the real-time equivalent resistance. The water finding and plugging device comprises the impedance sensing device and the mass flow measuring device, the mass flow of the target layer section and the water content of the two-phase flow can be directly measured at the layer section of the target, the measuring result is more accurate and rapid, and the production scheme is adjusted according to the measuring result, so that the water finding and plugging device is more accurate.
Description
Technical Field
The specification oil gas development field, more specifically, the application relates to a water finding and blocking switch, a pipe column, a water content and production determining method and equipment thereof.
Background
When the thin oil block enters the later development stage of 'double high', the contradiction between layers and in-layer is prominent, and the multi-layer high-water-content and water-content high-low layers are alternately distributed. High permeability layer flooding is a serious and high water-containing well trend to rise year by year. When the oil field development is in the period of high water content development, the accurate and reliable measurement of the water content of the underground oil-water two-phase flow is a great technical problem. In the current oil extraction work, the oil-water two-phase flow is extracted to the ground, and the water content is obtained through sampling and detection of the two-phase flow, so that the production work is guided.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In a first aspect, an embodiment of the present application provides a water finding and blocking switch, including:
the mass flow measuring device is used for measuring the real-time mass flow of the two-phase flow to be measured flowing through the water finding and blocking switch, wherein the two-phase flow to be measured comprises water and oil;
the impedance sensing device is used for measuring the real-time equivalent resistance of the two-phase flow to be measured flowing through the water finding and blocking switch;
and the water plugging device is used for executing water plugging operation according to the real-time water content of the two-phase flow to be detected and the mass flow, wherein the real-time water content is acquired based on the real-time equivalent resistance.
Optionally, the impedance sensing device includes:
the excitation electrode is used for constructing a sensitive electric field based on an excitation source so that the two-phase flow to be detected flowing through the water finding and blocking switch generates induced current and induced voltage based on the sensitive electric field, and the induced current and the induced electric field are used for calculating the equivalent resistance;
a measuring electrode for measuring the induced current and the induced voltage;
and the grounding assembly is used for contacting with the surface of the drilling hole wall to be grounded so as to provide a grounding phase.
Optionally, the water shutoff device includes:
the piston comprises a liquid inlet;
the connecting rod is connected with the piston and the driving mechanism;
the driving mechanism is used for pushing the connecting rod based on the water shutoff control instruction so as to enable the piston to finish water shutoff operation.
Optionally, the method further comprises:
the side wall of the shell is provided with a liquid inlet channel;
the pressure tester is arranged at the liquid inlet channel;
the temperature tester is arranged at the liquid inlet channel.
In a second aspect, an embodiment of the present application further provides a method for determining a water content, which is used for any one of the water finding and blocking switches described in claims 1 to 4, and is characterized by including:
acquiring the real-time equivalent resistance of the two-phase flow to be detected;
acquiring a reference equivalent resistance and a reference water content of a reference liquid;
and determining the real-time water content of the two-phase flow to be detected based on the real-time equivalent resistance, the reference equivalent resistance and the reference water content.
Optionally, the reference liquid includes pure water, and the reference water content corresponding to the pure water is 100%;
the determining the real-time water content of the two-phase flow to be detected based on the real-time equivalent resistance, the reference equivalent resistance and the reference water content comprises the following steps:
and determining the real-time water content of the two-phase flow to be detected based on the real-time equivalent resistance and the reference equivalent resistance corresponding to the pure water.
In a third aspect, an embodiment of the present application further provides a water finding and plugging pipe column, including at least two water finding and plugging switches according to the first aspect, further including:
the pipe body is used for connecting the pump body and the water finding and blocking switch;
the pump body is connected to the first end of the pipe body and is used for extracting the two-phase flow to be detected;
and the plug is connected to the second end of the pipe body.
Optionally, the method further comprises:
the cable passing anchor is used for fixedly connecting the pipe body and the well wall;
and the cable passing packer is used for packing and protecting the cable of the water finding and blocking switch.
In a fourth aspect, an embodiment of the present application further provides a method for determining a production scheme, which is used for finding a water pipe column according to the third aspect, and is characterized by including:
controlling a water injection well of the target well zone to perform water injection operation based on the target pressure;
controlling a first water finding and blocking switch in a water finding and blocking pipe column corresponding to a preset closing layer section of a production well to be closed;
acquiring a real-time water content corresponding to a second water finding and blocking switch, wherein the second water finding and blocking switch is a water finding and blocking switch except the first water finding and blocking switch, and the second water finding and blocking switch is in an on state;
a production recipe is determined based on the target pressure and the real-time water cut.
In a fifth aspect, embodiments of the present application further provide a production scheme determining apparatus, including:
the first control unit is used for controlling the water injection well of the target well region to perform water injection operation based on the target pressure;
the second control unit is used for controlling the first water finding and blocking switch in the water finding and blocking pipe column corresponding to the preset closing layer section of the production well to be closed;
the acquisition unit is used for acquiring the real-time water content corresponding to a second water finding and blocking switch, wherein the second water finding and blocking switch is a water finding and blocking switch except the first water finding and blocking switch, and the second water finding and blocking switch is in an on state;
and a determining unit for determining a production scheme based on the target pressure and the real-time water content.
In a sixth aspect, an electronic device includes: a memory, a processor and a computer program stored in the memory and executable on the processor for implementing the steps of the production scheme determination method according to the fourth aspect when the computer program stored in the memory is executed.
In a seventh aspect, the present invention also proposes a computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the production scheme determination method of the fourth aspect.
In summary, a water finding and blocking switch provided in an embodiment of the present application includes: the mass flow measuring device is used for measuring the real-time mass flow of the two-phase flow to be measured flowing through the water finding and blocking switch, wherein the two-phase flow to be measured comprises water and oil; the impedance sensing device is used for measuring the real-time equivalent resistance of the two-phase flow to be measured flowing through the water finding and blocking switch; and the water plugging device is used for executing water plugging operation according to the real-time water content of the two-phase flow to be detected and the mass flow, wherein the real-time water content is acquired based on the real-time equivalent resistance. The water finding and plugging device comprises the impedance sensing device and the mass flow measuring device, the mass flow of the target layer section and the water content of the two-phase flow can be directly measured at the layer section of the target, the measuring result is more accurate and rapid, and the production scheme is adjusted according to the measuring result, so that the water finding and plugging device is more accurate.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination and practice of the present application.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the specification. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic diagram of a water-blocking finding switch according to an embodiment of the present application;
fig. 2 is a schematic diagram of a working principle of a water finding and blocking switch according to an embodiment of the present application;
fig. 3 is a schematic diagram of a piston structure in a water-blocking finding switch according to an embodiment of the present application
Fig. 4 is a schematic diagram of a method for measuring water content according to an embodiment of the present application;
fig. 5 is a schematic diagram of a water plugging finding pipe column according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a method for determining a production scheme according to an embodiment of the present application;
FIG. 7 is a schematic view of a production scheme determining apparatus according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to a method for determining a production scheme according to an embodiment of the present application;
the correspondence between the reference numerals and the component names in fig. 1 and 5 is:
10, finding a water shutoff switch; 11 mass flow measuring device, 12 impedance sensing device, 13 water shutoff device, 14 shell, 15 pressure tester, 16 temperature tester, 17 functional circuit;
excitation electrode 121, measurement electrode 122, grounding assembly 123, piston 131, connecting rod 132, driving mechanism 133, and liquid inlet channel 141;
a tube body 20; a pump body 30; a plug 40; a cable anchor 50; passing through a cable packer 60;1311 inlet.
Detailed Description
The water finding and plugging device comprises the impedance sensing device and the mass flow measuring device, the mass flow of the target layer section and the water content of the two-phase flow can be directly measured at the layer section of the target, the measuring result is more accurate and rapid, and the production scheme is adjusted according to the measuring result, so that the water finding and plugging device is more accurate.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims of this application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application.
Referring to fig. 1, a schematic diagram of a water blocking finding switch according to an embodiment of the present application may specifically include:
in a first aspect, an embodiment of the present application proposes a water shutoff switch 10, including:
a mass flow measuring device 11 for measuring the real-time mass flow of the two-phase flow to be measured flowing through the water finding and blocking switch 10, wherein the two-phase flow to be measured comprises water and oil;
an impedance sensing device 12 for measuring the real-time equivalent resistance of the two-phase flow to be measured flowing through the water finding and blocking switch 10;
and the water plugging device 13 is used for executing water plugging operation according to the real-time water content of the two-phase flow to be detected and the mass flow, wherein the real-time water content is acquired based on the real-time equivalent resistance.
Illustratively, the water-finding switch 10 shown in fig. 1 includes a mass flow measuring device 11, and the mass flow measuring device 11 may be a mass flowmeter that directly measures the mass flow of the two-phase flow passing through when the two-phase flow passes through the water-finding switch 10. The water finding and blocking switch 10 further comprises an impedance sensing device 12, wherein the impedance sensing device 12 can measure the electrical impedance corresponding to the two-phase flow flowing through the water finding and blocking switch 10, and the water content of the two-phase flow in the current state can be directly obtained through the corresponding relation between the known electrical impedance and the water content. And a detection personnel or control equipment on the ground sends out a water shutoff instruction according to the measured water content and mass flow of the two-phase flow, and the water shutoff device executes water shutoff operation after receiving the water shutoff instruction.
In summary, the water finding and blocking device provided by the embodiment of the application comprises an impedance sensing device and a mass flow measuring device, the mass flow of the target layer section and the water content of the two-phase flow can be directly measured at the layer section of the target, the measuring result is more accurate and rapid, and the production scheme is adjusted according to the measuring result, so that the water finding and blocking device is more accurate.
In some examples, the impedance sensing device 12 includes:
the excitation electrode 121 is configured to construct a sensitive electric field based on an excitation source, so that the two-phase flow to be detected flowing through the water finding and blocking switch generates an induced current and an induced voltage based on the sensitive electric field, and the induced current and the induced electric field are used for calculating the equivalent resistance;
a measuring electrode 122 for measuring the induced current and the induced voltage;
a grounding assembly 123 for contacting the borehole wall surface to ground to provide a ground phase.
As illustrated in fig. 1 and 2, the impedance sensing device 12 includes an excitation electrode 121, a measurement electrode 122, and a ground assembly 123, and is an impedance sensor of a three-electrode structure. The impedance sensing device 12 adopts a current excitation voltage measurement method, and when the water content of the two-phase flow is measured, a constant current excitation source is applied to an excitation electrode 121, and a measurement system collects a voltage signal on a measurement electrode 122 for measurement. When a constant-current excitation source is added to the excitation electrode, a sensitive electric field is established in a detected area, and when the two-phase flow flows in the sensor, the output of the measurement electrode 122 can detect the equivalent resistance in the detected area in real time, and the water content of the oil-water two-phase flow can be indirectly obtained by utilizing a theoretical model between the impedance and the phase retention rate of the fluid. In the case where water is the continuous phase and oil is the discrete phase, random variations in the size distribution and spatial distribution of the oil bubbles will result in variations in the conductivity of the fluid. And then the mass flow and the water content of the two-phase flow are combined to calculate the water yield and the oil yield of the oil well. The water shutoff and finding switch also comprises a functional circuit 17 for controlling the excitation electrode 121 and collecting the induced current and the induced voltage collected by the measurement electrode 122.
In summary, the impedance sensing device with a three-electrode structure is used in the water finding and blocking switch provided by the embodiment of the application, the output of the measuring electrode can detect the equivalent resistance in the measured area in real time by adopting a current excitation voltage measurement method, and the water content of the oil-water two-phase flow can be indirectly obtained by utilizing a theoretical model between the impedance and the phase retention rate of the fluid.
In some examples, the water shutoff device 13 includes:
a piston 131, the piston 131 comprising a liquid inlet 1311;
a connecting rod 132, the connecting rod 132 connecting the piston 131 and a driving mechanism 133;
and a driving mechanism 133 for pushing the connecting rod based on the water shutoff control command to enable the piston 133 to complete the water shutoff operation.
The water shutoff device 13 includes a piston 131, a connecting rod 132, and a driving mechanism 133, as shown in fig. 3, a liquid inlet 1311 through which two-phase flow to be measured can flow is provided in the middle of the piston 131, and the water shutoff device 13 can control the driving mechanism 133 to work based on a water shutoff command, so as to drive the connecting rod 132 and the piston 131 connected with the connecting rod, thereby changing the spatial position of the piston 131, blocking the two-phase flow flowing in the perforation in the target interval, and thus completing the water shutoff operation.
In some examples, further comprising:
a housing 14, wherein a liquid inlet channel 141 is arranged on the side wall of the housing 14;
a pressure tester 15, the pressure tester 15 being disposed at the liquid inlet channel 141;
a temperature tester 16, the temperature tester 16 being disposed at the liquid inlet passage 141.
The housing 14 is disposed outside the water shutoff switch 10, the liquid inlet channel 141 allowing the two-phase flow to enter is disposed on the housing 14, the pressure tester 15 and the temperature tester 16 are disposed at the liquid inlet channel 141, and the pressure and the temperature of the two-phase flow can be measured when the two-phase flow enters the water shutoff switch 10, so as to correct the mass flow and the measured equivalent resistance, thereby improving the measurement accuracy of the water content and the mass flow. The pressure gauge 16 may also be used to reflect the relationship between the water injection pressure and the two-phase flow production pressure to guide the hydrocarbon production operation.
In summary, the water finding and blocking switch provided by the embodiment of the application is provided with the temperature measuring instrument and the pressure measuring instrument at the liquid inlet channel of the shell, so that the water content and the mass flow of the two-phase flow can be corrected, and the measuring precision is improved.
In a second aspect, referring to fig. 4, an embodiment of the present application further provides a method for determining a water content, which is used for any one of the water finding and blocking switches described in claims 1 to 4, and is characterized by comprising:
s210, acquiring the real-time equivalent resistance of the two-phase flow to be detected;
illustratively, the real-time equivalent resistance of the two-phase flow flowing through the water finding and blocking switch is obtained through an impedance sensing device in the water finding and blocking switch.
S220, acquiring a reference equivalent resistance and a reference water content of the reference liquid;
the reference liquid is liquid with known water content, the reference equivalent resistance of the liquid with known water content is measured through finding the water shutoff switch, and the corresponding relation between the reference equivalent resistance and the real-time equivalent resistance is constructed, so that the real-time water content of the two-phase flow to be measured can be obtained.
S230, determining the real-time water content of the two-phase flow to be detected based on the real-time equivalent resistance, the reference equivalent resistance and the reference water content.
Illustratively, the conductivity of the two-phase flow to be measured flowing through the sensor fluid is set to be sigma m Conductivity of the reference liquid is sigma w The calibration coefficient of the instrument is K, and the input current on the two-phase flow electrode ring to be measured is I 1 The output voltage is V 1 The input current on the electrode ring corresponding to the reference liquid is I 2 The output voltage is V 2 The following relation is given:
σ m ＝KI 1 /V 1
σ w ＝KI 2 /V 2
in which I 1 And I 2 Is the effective components of exciting electrode input current in the two-phase flow to be measured and the reference liquid respectively, then contains in real timeThe water ratio sigma is:
in summary, the method for determining the water content provided by the embodiment of the application respectively measures the equivalent resistance of the reference liquid and the two-phase flow to be measured through the water shutoff switch, and determines the real-time water content of the two-phase flow to be measured based on the relationship between the equivalent resistance and the reference water content, thereby being convenient and quick.
In some examples, the reference liquid comprises pure water, the pure water corresponding to a reference water content of 100%;
the determining the real-time water content of the two-phase flow to be detected based on the real-time equivalent resistance, the reference equivalent resistance and the reference water content comprises the following steps:
and determining the real-time water content of the two-phase flow to be detected based on the real-time equivalent resistance and the reference equivalent resistance corresponding to the pure water.
The reference liquid may be pure water, the water content corresponding to the pure water is 100%, and the real-time water content of the two-phase flow may be directly determined by the direct real-time equivalent resistance and the reference equivalent resistance corresponding to the pure water.
In a third aspect, referring to fig. 5, an embodiment of the present application further provides a water finding and plugging pipe string, including at least two water finding and plugging switches 10 according to the first aspect, further including:
the pipe body 20 is used for connecting the pump body 30 and the water shutoff finding switch 10;
the pump body 30 is connected to the first end of the pipe body 20, and the pump body 30 is used for pumping the two-phase flow to be tested;
a plug 40, the plug 40 being connected to the second end of the tube 20.
For example, the water-shutoff finding pipe column may include a plurality of water shutoff finding switches 10, each water shutoff finding switch 10 is responsible for water shutoff operation of one interval, and may include a plurality of target intervals in one production well, and the number of water shutoff finding switches 10 is set based on the number of target intervals. Every two water shutoff and finding switches are connected through the pipe body 20, and the length of each pipe body 20 is determined by the depth between target intervals. A pump body 30 is arranged at one end of the pipe body 20 close to the wellhead and is used for pumping the two-phase flow to be measured to the wellhead. A plug is arranged at the bottom end of the pipe body to ensure that the two-phase flow to be measured flowing into the pipe body 20 is collected in the pipe body 20 and is extracted to the ground by the pump body 30.
In summary, the water finding and blocking pipe column provided by the embodiment of the application is used for forming a working fluid level by upward movement of the two-phase flow through the release of the stratum pressure after the two-phase flow produced liquid enters the intelligent water finding and blocking switch through the liquid inlet channel, and is lifted and extracted by the oil pump above the intelligent water finding and blocking switch. The mass flow measuring device counts the total mass flow of the two-phase flow entering the intelligent water finding and blocking switch in real time; the two-phase flow passes through the impedance sensing device, the equivalent resistance of the two-phase flow is detected in real time by the impedance sensing device, and the water content of the oil-water two-phase flow can be indirectly obtained by utilizing a theoretical model between the point impedance and the phase-holding rate of the fluid. The control device on the ground can adjust the water plugging operation of the water finding and plugging switches according to the water content.
In some examples, further comprising:
a cable anchor 50 for fixedly connecting the pipe body 20 and the well wall;
and a cable packer 60 for packing and protecting the cable of the water finding and blocking switch.
Illustratively, the water finding and plugging string further includes a cable anchor 50, the cable anchor 50 fixedly connecting the water finding and plugging string with the well wall to resist vibration when the pump body extracts the two-phase flow. The cable-passing packer 60 is used to create a closed space for extracting two-phase flow between the sections and to protect the communication or control cable for the water shut-off switch.
In a fourth aspect, referring to fig. 6, an embodiment of the present application further provides a method for determining a production scheme, which is used for finding a water plugging pipe string according to the third aspect, and is characterized by including:
s410, controlling a water injection well of the target well zone to perform water injection operation based on the target pressure;
the target well zone comprises a water injection well and a production well, water is injected into the water injection well based on target pressure, and the water injection well and the production well are driven by an injection water source to produce oil-water two-phase flow due to the fact that the water injection well and the production well are in a communicated target interval. Each water injection well may drive multiple production wells, and some of each production well may also be affected by multiple water injection wells.
S420, controlling a first water finding and blocking switch in a water finding and blocking pipe column corresponding to a preset closing layer section of a production well to be closed;
illustratively, a preset closing interval is selected based on a first control scheme, and a first water-finding and blocking switch of the preset closing interval is controlled to be closed so as to close the preset closing interval.
S430, acquiring the real-time water content corresponding to a second water finding and blocking switch, wherein the second water finding and blocking switch is a water finding and blocking switch except the first water finding and blocking switch, and the second water finding and blocking switch is in an on state;
the second switch is an exemplary water finding and blocking switch which does not execute water blocking operation in each water finding and blocking pipe column in the plurality of production wells in the target well zone, and the real-time water content of the two-phase flow to be detected in the opening layer section is measured through the second water finding and blocking switch.
S440, determining a production scheme based on the target pressure and the real-time water content.
By way of example, by continuously switching between different preset closed intervals through the relationship between the target pressure of injected water and produced oil in the non-closed intervals, a production scheme with a higher oil production rate is determined, and based thereon, the subsequent production mode of the well zone is determined, i.e. the optimal combination of closed and open conditions in different target intervals in each production well is determined.
In summary, the production scheme determining method provided by the application can measure the water content of the two-phase flow of the target interval in real time by finding the water shutoff switch in the water shutoff pipe column, and can well switch the closing and opening combination schemes of different target intervals, thereby determining the optimal production scheme.
Referring to fig. 7, an embodiment of the apparatus for determining a production method according to an embodiment of the present application may include:
a first control unit 71 for controlling a water injection well of the target well zone to perform a water injection operation based on the target pressure;
a second control unit 72, configured to control the first water finding and blocking switch in the water finding and blocking pipe column corresponding to the preset closing interval of the production well to be closed;
an obtaining unit 73, configured to obtain a real-time water content corresponding to a second water finding and blocking switch, where the second water finding and blocking switch is a water finding and blocking switch other than the first water finding and blocking switch, and the second water finding and blocking switch is in an on state;
a determining unit 74 for determining a production scheme based on the target pressure and the real-time water content.
As shown in fig. 8, the embodiment of the present application further provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 320 and capable of running on the processor, where the processor 320 implements any of the steps of the above-mentioned method for determining a generating method when executing the computer program 311.
Since the electronic device described in this embodiment is a device for implementing the generating method determining apparatus in this embodiment, based on the method described in this embodiment, those skilled in the art can understand the specific implementation of the electronic device in this embodiment and various modifications thereof, so how the electronic device implements the method in this embodiment will not be described in detail herein, and those skilled in the art should only implement the device for implementing the method in this embodiment, which is within the scope of protection of this application.
In a specific implementation, the computer program 311 may implement any of the embodiments corresponding to fig. 1 when executed by a processor.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Embodiments of the present application also provide a computer program product comprising computer software instructions which, when run on a processing device, cause the processing device to perform the flow of the method of generating a determination method as in the corresponding embodiment of fig. 1.
The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer readable storage media can be any available media that can be stored by a computer or data storage devices such as servers, data centers, etc. that contain an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid State Disks (SSDs)), among others.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (12)
1. A water finding and blocking switch, characterized by comprising:
the mass flow measuring device is used for measuring the real-time mass flow of the two-phase flow to be measured flowing through the water finding and blocking switch, wherein the two-phase flow to be measured comprises water and oil;
the impedance sensing device is used for measuring the real-time equivalent resistance of the two-phase flow to be measured flowing through the water finding and blocking switch;
and the water plugging device is used for executing water plugging operation according to the real-time water content of the two-phase flow to be detected and the mass flow, wherein the real-time water content is acquired based on the real-time equivalent resistance.
2. The water-finding and plugging switch of claim 1, wherein said impedance sensing means comprises:
the excitation electrode is used for constructing a sensitive electric field based on an excitation source so that the two-phase flow to be detected flowing through the water finding and blocking switch generates induced current and induced voltage based on the sensitive electric field, and the induced current and the induced electric field are used for calculating the equivalent resistance;
a measuring electrode for measuring the induced current and the induced voltage;
and the grounding assembly is used for contacting with the surface of the drilling hole wall to be grounded so as to provide a grounding phase.
3. The water shutoff switch of claim 1, wherein the water shutoff device comprises:
the piston comprises a liquid inlet;
the connecting rod is connected with the piston and the driving mechanism;
the driving mechanism is used for pushing the connecting rod based on the water shutoff control instruction so as to enable the piston to finish water shutoff operation.
4. The water-finding and plugging switch of claim 1, further comprising:
the side wall of the shell is provided with a liquid inlet channel;
the pressure tester is arranged at the liquid inlet channel;
the temperature tester is arranged at the liquid inlet channel.
5. A water content determining method for the water shutoff finding switch of any of claims 1 to 4, characterized by comprising:
acquiring the real-time equivalent resistance of the two-phase flow to be detected;
acquiring a reference equivalent resistance and a reference water content of a reference liquid;
and determining the real-time water content of the two-phase flow to be detected based on the real-time equivalent resistance, the reference equivalent resistance and the reference water content.
6. The method of claim 5, wherein the reference liquid comprises pure water, the pure water having a corresponding reference water content of 100%;
the determining the real-time water content of the two-phase flow to be detected based on the real-time equivalent resistance, the reference equivalent resistance and the reference water content comprises the following steps:
and determining the real-time water content of the two-phase flow to be detected based on the real-time equivalent resistance and the reference equivalent resistance corresponding to the pure water.
7. A water finding and plugging pipe column comprising at least two water finding and plugging switches as defined in any one of claims 1 to 4, further comprising:
the pipe body is used for connecting the pump body and the water finding and blocking switch;
the pump body is connected to the first end of the pipe body and is used for extracting the two-phase flow to be detected;
and the plug is connected to the second end of the pipe body.
8. The water finding and plugging string according to claim 7, further comprising:
the cable passing anchor is used for fixedly connecting the pipe body and the well wall;
and the cable passing packer is used for packing and protecting the cable of the water finding and blocking switch.
9. A production scheme determining method for a water finding and plugging tubular column according to claim 7, comprising:
controlling a water injection well of the target well zone to perform water injection operation based on the target pressure;
controlling a first water finding and blocking switch in a water finding and blocking pipe column corresponding to a preset closing layer section of a production well to be closed;
acquiring a real-time water content corresponding to a second water finding and blocking switch, wherein the second water finding and blocking switch is a water finding and blocking switch except the first water finding and blocking switch, and the second water finding and blocking switch is in an on state;
a production recipe is determined based on the target pressure and the real-time water cut.
10. A production schedule determining apparatus, characterized by comprising:
the first control unit is used for controlling the water injection well of the target well region to perform water injection operation based on the target pressure;
the second control unit is used for controlling the first water finding and blocking switch in the water finding and blocking pipe column corresponding to the preset closing layer section of the production well to be closed;
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring real-time water content corresponding to a second water finding and blocking switch, the second water finding and blocking switch is a water finding and blocking switch except the first water finding and blocking switch, and the second water finding and blocking switch is in an on state;
and a determining unit for determining a production scheme based on the target pressure and the real-time water content.
11. An electronic device, comprising: memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor is adapted to carry out the steps of the production scheme determination method according to claim 9 when the computer program stored in the memory is executed.
12. A computer-readable storage medium having stored thereon a computer program, characterized by: the computer program, when executed by a processor, implements the production scheme determination method of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210743940.4A CN117345197A (en) | 2022-06-27 | 2022-06-27 | Water-blocking finding switch, pipe column, water content and production determining method and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210743940.4A CN117345197A (en) | 2022-06-27 | 2022-06-27 | Water-blocking finding switch, pipe column, water content and production determining method and equipment thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117345197A true CN117345197A (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210743940.4A Pending CN117345197A (en) | 2022-06-27 | 2022-06-27 | Water-blocking finding switch, pipe column, water content and production determining method and equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117345197A (en) |
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2022
- 2022-06-27 CN CN202210743940.4A patent/CN117345197A/en active Pending
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