CN114186503A - Method and device for identifying water channeling channel of heavy oil reservoir - Google Patents

Method and device for identifying water channeling channel of heavy oil reservoir Download PDF

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CN114186503A
CN114186503A CN202111223265.4A CN202111223265A CN114186503A CN 114186503 A CN114186503 A CN 114186503A CN 202111223265 A CN202111223265 A CN 202111223265A CN 114186503 A CN114186503 A CN 114186503A
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water
permeability
target interval
threshold value
taking
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CN114186503B (en
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张渴健
刘慧�
张彪
王泊
武玉龙
张青丽
曾佳业
曹岩
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China Petroleum and Chemical Corp
Sinopec Henan Oilfield Branch Co No 2 Oil Production Plant
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Sinopec Henan Oilfield Branch Co No 2 Oil Production Plant
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/02—Agriculture; Fishing; Mining
    • 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/20—Computer models or simulations, e.g. for reservoirs under production, drill bits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2111/00—Details relating to CAD techniques
    • G06F2111/10—Numerical modelling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2113/00—Details relating to the application field
    • G06F2113/08—Fluids
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
    • G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/40—Controlling or monitoring, e.g. of flood or hurricane; Forecasting, e.g. risk assessment or mapping

Abstract

The invention relates to a method and a device for identifying a water channeling channel of a heavy oil reservoir, belonging to the technical field of oil reservoir development and comprising the following steps: acquiring the average formation pressure of the target interval and the lowest pressure center point of the target interval, and taking the area of a first set pressure range around the lowest pressure center point as a potential boundary water invasion path D1; acquiring the water inflow rate of each production well of the target interval, and taking a region with the water inflow rate higher than a first set rate threshold value as a potential boundary water invasion path D2; acquiring the average stratum permeability of the whole target interval and the permeability of each position of the target interval, and determining a potential boundary water invasion path D3; determining the water phase flow velocity distribution of the target interval through numerical simulation, and taking the area with the water phase flow velocity larger than a first set velocity threshold value as a potential boundary water invasion path D4; by combining the four potential side water intrusion paths D1 to D4 obtained above, the region where the four regions overlap is defined as the finally identified water passage.

Description

Method and device for identifying water channeling channel of heavy oil reservoir
Technical Field
The invention belongs to the technical field of oil reservoir development, and particularly relates to a method and a device for identifying a water channeling channel of a heavy oil reservoir.
Background
Along with the deepening of oil reservoir development, the problems of side water influence and steam channeling of a heavy oil thermal recovery block of an old oil field are gradually highlighted, so that the bottleneck for restricting the later development of the oil field of the heavy oil thermal recovery block is formed, and the prominent problem which needs to be solved for improving the recovery ratio is solved.
In the existing profile control and channeling blocking technology, the conventional foam profile control and water blocking effect is poor, and the process cost such as particle profile control, scum profile control and the like is high and the benefit is poor. The reasons for poor analysis effect mainly result from unclear identification of the flooding path of the heavy oil reservoir, unclear recognition of the water channeling channel and poor pertinence of edge water treatment. However, the prior art cannot provide an accurate and reliable method for identifying a water channeling channel, for example, the water channeling channel is determined to have a certain deviation only by the permeability, and the reliability is low.
Disclosure of Invention
Considering that the formation pressure, injection and production parameters and the water flow rate simultaneously have influence on the water invasion speed, various factors must be considered for comprehensive judgment, and the result can be more accurate.
The invention aims to provide a method and a device for identifying a water channeling channel of a heavy oil reservoir, which are used for solving the problems that the water channeling channel is difficult to identify or has poor identification accuracy under the conditions that the oil reservoir has edge water and a flooding path is unclear in the prior art.
Based on the purposes, the technical scheme of the method for identifying the water channeling channel of the heavy oil reservoir is as follows:
step 1, acquiring the average formation pressure of a target interval and the lowest pressure center point of the target interval, and taking a region of a first set pressure range around the lowest pressure center point as a potential boundary water invasion path D1;
step 2, acquiring the water inflow rate of each production well of the target interval, and taking the area with the water inflow rate higher than a first set rate threshold value as a potential boundary water invasion path D2;
step 3, obtaining the average permeability of the stratum of the whole target interval and the permeability of each position of the target interval, comparing the permeability of each position with the average permeability of the stratum, and taking a region higher than the average permeability of the stratum to a certain extent as a potential boundary water invasion path D3; alternatively, areas greater than the first set permeability threshold are designated as potential side water intrusion paths D3;
step 4, determining the water phase flow velocity distribution of the target interval through numerical simulation, and taking the area with the water phase flow velocity larger than a first set velocity threshold value as a potential side water invasion path D4;
and 5, integrating the four potential side water intrusion paths D1-D4 obtained above, and taking the overlapped area of the four areas as the finally identified water channeling channel.
The beneficial effects of the above technical scheme are:
the method and the device comprehensively utilize the pressure field distribution condition, the water inflow rate distribution condition and the permeability distribution condition of the target interval, and the water phase flow rate distribution condition of the target interval obtained by data simulation, comprehensively identify the water channeling channel of the heavy oil reservoir, have higher identification accuracy, and play a great role in optimizing injection and production parameters and establishing a later-stage water suppression measure scheme. Moreover, the problem that in the prior art, under the conditions that edge water appears in an oil reservoir and a water flooding path is unclear, a water channeling channel is difficult to identify or identification accuracy is poor is solved, water suppression measures are strong in pertinence, and a water suppression effect is improved.
Further, step 5 further comprises: according to the areas where the four areas coincide, a determination condition for accurately identifying the water channeling channel can be obtained: the formation pressure is smaller than a second set pressure threshold value, the water inflow rate is larger than a second set rate threshold value, the average permeability is larger than a second set permeability threshold value, and the water phase flow rate is larger than a second set rate threshold value.
Furthermore, after the water channeling channel of the heavy oil reservoir is identified, the method also comprises the step of carrying out shape description on the side water invasion channel according to the exploitation mode of the reservoir.
Based on the purpose, the technical scheme of the device for identifying the water channeling channel of the heavy oil reservoir is as follows:
the water channeling identification method comprises a memory, a processor and a computer program stored on the memory and running on the processor, wherein the processor is coupled with the memory, and the processor realizes the water channeling identification method when executing the computer program.
Further, the processor is further configured to: according to the areas where the four areas coincide, a determination condition for accurately identifying the water channeling channel can be obtained: the formation pressure is smaller than a second set pressure threshold value, the water inflow rate is larger than a second set rate threshold value, the average permeability is larger than a second set permeability threshold value, and the water phase flow rate is larger than a second set rate threshold value.
Furthermore, the processor is also used for carrying out morphological description on the water invasion channel according to the exploitation mode of the oil reservoir after the water channeling channel of the heavy oil reservoir is identified.
Drawings
Fig. 1 is a flowchart of a method for identifying a water channeling channel of a heavy oil reservoir in an embodiment of the method of the present invention;
FIG. 2 is a diagram of a III-4 layer pressure-affected water intrusion path in an example of the method of the present invention;
FIG. 3 is a graph of III-4 layer water entry rate influencing water intrusion paths in an example embodiment of the method of the present invention;
FIG. 4 is a graph of III-4 layer permeability field-influencing water invasion pathways in an example of a method of the invention;
FIG. 5 is a graph showing the flow rate influence of aqueous phase on water invasion pathway in layer III-4 in an example of the method of the present invention;
FIG. 6 is a schematic diagram of a low-injection forced-production convex water invasion channel of a thermal production well in an embodiment of the method of the invention;
FIG. 7 is a schematic diagram of a concave water invasion channel for forced injection and low recovery of a thermal production well in an embodiment of the method of the invention;
FIG. 8 is a schematic representation of a thermal production well in an embodiment of the method of the present invention having a hypertonic water channeling pathway;
figure 9 is a graph of new H6216 production in an example of the method of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
The method comprises the following steps:
the embodiment provides a method for identifying a water channeling channel of a heavy oil reservoir, as shown in fig. 1, the method is implemented by the following specific steps:
step 1, acquiring the average formation pressure of the target interval and the lowest pressure center point of the target interval, and taking the area of the first set pressure range around the lowest pressure center point as a potential boundary water invasion path D1.
In this step, the area of the set range around the lowest pressure center point is determined according to the average formation pressure of the target interval, for example, the current average formation pressure of the iii-4 layer (i.e., the target interval) is 1.4Mpa, two pressure center points (i) and (ii) exist in the oval enclosed area, the lowest pressure of the pressure center at the first point is 0.4Mpa, and the lowest pressure of the pressure center at the second point is 0.8Mpa, so that an appropriate pressure threshold value, for example, 1Mpa, is determined between the average formation pressure of 1.4Mpa and the higher lowest pressure of 0.8Mpa, and the area with the formation pressure near the pressure center point lower than 1Mpa is used as a potential water invasion passage area (i.e., D1), wherein the middle-low pressure area is caused by the decrease of the formation pressure after steam throughput, thereby causing the invasion of edge water, as shown in fig. 2.
And 2, acquiring the water inflow rate of each production well (namely, a water injection well) in the target interval, and taking the area with the water inflow rate higher than the first set rate threshold as a potential side water invasion path D2.
Taking the III-4 layer as an example, firstly, a water inlet rate threshold value is set through numerical simulation, and the water invasion breaks through when the water inlet rate exceeds the threshold value. Through simulation, the water inlet speed threshold of III-4 layers is 15m3The average water inflow rate of the/day, III-4 production well was 8.94m3/day, while the water inflow rate of XH622 (indicating well number, the same applies below) was 20.19m3Water inflow rate of 20.96m for/day, EX413The water inflow rate of/day, XH635 is 10.43m3The water inflow rate of/day, XH6310 was 10.46m3The water inflow rate of/day, xh6312 is 10.97m3The water inflow rate of/day, XH6312 was 10.97m3Water entry Rate of 10.17 m/day, XH63133And/day, identifying the side water intrusion path according to the water inflow rate, as shown in fig. 3, the water inflow rate is high, which indicates that the water flow rate is high. The average water inflow rate in the target interval is more than 15m3The area of/day (selected as the first set rate threshold) is taken as the potential side water intrusion path D2.
And 3, acquiring the average permeability of the whole target interval (namely the average permeability of the stratum) and the permeability of each position of the target interval, comparing the permeability of each position with the average permeability of the stratum, and taking a region with a certain degree higher than the average permeability of the stratum as a potential boundary water invasion path D3. Alternatively, a region greater than the first set permeability threshold (which must be greater than the average permeability of the formation) is taken as the potential side water invasion path D3.
For example, the average permeability of the iii-4 formation is 2034md, wherein the permeability of (i) is 5600md, (ii) is 3200md, and (iii) is 4500md, which are much higher than the average permeability of the formation, and the side water is affected by the permeability and is the main considered region of the water invasion passage, and as shown in fig. 4, the region higher than the average permeability is called a potential water invasion passage region (i.e. side water invasion path D3).
In this step, the value of the average permeability 3200md is related to the average permeability of the formation, and the value depends on two parts, one part is the average permeability of the formation, and the other part is higher than the average permeability of the formation to a certain degree. For example, if the average permeability of the formation in this step is 2034md and the certain degree higher than the average permeability of the formation is 1166md, the determination condition as the potential boundary water invasion path is X-2034>1166, X is the permeability of the target interval, and the condition formula is finished to be X >3200, so that the conclusion that the region higher than the average permeability 3200md is called a water invasion passage region is obtained.
And 4, determining the water phase flow velocity distribution of the target interval through numerical simulation, and taking the area with the water phase flow velocity larger than the first set velocity threshold value as a potential side water invasion path D4.
For example, the average flow velocity of the III-4 layers of the formation is 0.89m3A flow velocity of 3.13m at (i)/day3(day, 2) average flow velocity of 1.21m3(day) ((iii)) a flow velocity of 1.6m3The area above the average flow rate was chosen as a potential side water intrusion path, as shown in fig. 5 for/day.
And 5, integrating the four potential side water invasion paths D1-D4 obtained above, and taking the overlapped area of the four areas as the finally identified water channeling channel.
For example, from the potential boundary water intrusion paths D1 to D4 in steps 1 to 4, determination conditions for accurately identifying a water channeling passage can be obtained, specifically described as: the current formation pressure is less than 1.0MPa (the second set pressure threshold value), and the average water inflow rate is more than 15m3A/day (i.e., a second set rate threshold, equal to the first set rate threshold), an average permeability of greater than 3200md (a second set permeability threshold), and an average flow rate of greater than 1.5m3Day (second set rate threshold). And carrying out quantitative comprehensive identification according to the four regions and the parameters to form a regular method as a method for identifying the heavy oil reservoir water channeling channel and the form description.
The determination of the above four threshold parameters is determined according to the overlapping regions D1-D4, that is, according to the displayed overlapping regions, the value range of the formation pressure, the value range of the average water inflow rate, the value range of the average permeability, and the value range of the water phase flow rate in the overlapping region can be distinguished (reversely deduced), and then the above judgment conditions can be determined.
Based on the above judgment conditions, according to the comprehensive identification analysis of III-4 layers of pressure field distribution, water inlet rate, permeability field distribution and flow field, the following 4 water channeling channels (the following symbols are well numbers) in the III-4 layers can be identified:
1.XH631-XH635-XH6310；
2.EX41；
3.XH6312-X6287；
4.XH6313-xh6217。
and, there are 2 water channeling paths for the dynamic production of oil wells:
1.XH631-XH635-XH6310-EX41；
2.XH6312-X6287-XH6217-XH6313。
the method comprehensively utilizes the pressure field distribution condition, the water inflow rate distribution condition and the permeability distribution condition of the target interval and the water phase flow velocity distribution condition of the target interval obtained by data simulation, comprehensively identifies the water channeling channel of the heavy oil reservoir, and has high identification accuracy.
In this embodiment, the steps 1 to 4 are determination steps of the four potential side water intrusion paths D1 to D4, so there is no sequence among the four steps, the four steps may be performed sequentially in order or concurrently, and the specific step sequence is not limited in this embodiment.
In this embodiment, not only the water channeling channel of the heavy oil reservoir needs to be identified, but also the comprehensive description of the side water invasion channel form is performed, and the specific description method is as follows:
unreasonable exploitation modes such as strong injection strong exploitation, low injection high exploitation, high injection low exploitation, high speed exploitation and the like in the complex small fault block edge water heavy oil reservoir exploitation process have great influence on the formation of a water invasion dominant channel. The larger the injection-production strength is, the larger the pressure gradient acting on rock particles is, the more easily sand grains fall off, the larger the sand output is, the more easily high-permeability zone is formed, the faster the pressure drop is, and the more easily sand is generated by the pressure drop, the repeated circulation is adopted to promote the formation of large pore channels in the oil layer, and the water invasion channel forms in the water invasion process under different injection-production strengths are different, so that the research on the water invasion channel types can play a great role in optimizing injection-production parameters or establishing a later-stage water suppression measure scheme.
The CMG is used for establishing a mechanism model, the forms of water invasion channels with different injection and production strengths are researched, the development modes such as strong injection and strong production, low production and high injection, high injection and low production, high-speed development and the like are simulated respectively by adjusting injection and production parameters, 81 mechanism models are orthogonally designed, in addition, in order to more vividly observe the forms of the water invasion channels, the grid size is set and refined to 1m multiplied by 1m in the model, simulation is carried out in six production cycles, and finally the types of the water invasion channels of the injection and production parameters under three different conditions are obtained as shown in figures 6, 7 and 8.
The side water invasion channel is ideally a rhombus, and under the development mode of low-injection forced mining, the pressure difference between the side water and the production well in the vertical direction is increased, and the side water abnormally enters in the direction, which is shown in figure 6. In the development mode of strong injection and low recovery, the area with the closest vertical distance between the edge water and the production well generates a water invasion delay phenomenon due to the influence of the pressure of injected gas, as shown in fig. 7. The presence of the zone causes the edge water to rapidly project along the zone and break through the production bottom in a short time to form a water-cut seepage path, as shown in figure 8.
The embodiment describes the form of the water invasion channel, and describes the water invasion channel of the opposite side, so that a basis is provided for improving the water suppression and development effect of the complex small fault block edge heavy oil reservoir. Unreasonable exploitation modes such as strong injection strong exploitation, low injection high exploitation, high injection low exploitation, high speed exploitation and the like in the complex small fault block edge water heavy oil reservoir exploitation process have great influence on the formation of a water invasion dominant channel. The larger the injection-production strength is, the larger the pressure gradient acting on rock particles is, the more easily sand grains fall off, the larger the sand output is, the more easily high-permeability zone is formed, the faster the pressure drop is, and the more easily sand is generated by the pressure drop, the repeated circulation is adopted to promote the formation of large pore channels in the oil layer, and the water invasion channel forms in the water invasion process under different injection-production strengths are different, so that the research on the water invasion channel types can play a great role in optimizing injection-production parameters or establishing a later-stage water suppression measure scheme.
In order to verify the identification accuracy of the water channeling channel, after the water channeling channel of the heavy oil reservoir is determined according to the method, water plugging measures are carried out on the water invasion well determined by the target block, for example, a new H6216 well is taken as an example, the plant fiber particle plugging agent is adopted for carrying out the water plugging measures, and the effects are shown in the following table.
New H6216 well contrast cycle case
Figure BDA0003313405610000061
Statistical table of effect of new H6216 well plant fiber particle blocking agent inhibition measure
Figure BDA0003313405610000062
The production curve diagram of the new H6216 is shown in FIG. 9, and the graph and the table show that after the plant fiber particle plugging agent water plugging measure is carried out on the new H6216 well according to the volume parameter of the water invasion channel, the water content is obviously reduced, the liquid yield is increased, the cumulative yield of crude oil is increased by 337 tons in a single period, and the development effect of residual oil formed by invasion of edge water is effectively improved, so that the method provides an effective idea for improving the development effect of the oil reservoir production well.
The embodiment of the device is as follows:
the embodiment provides an identification device of a water channeling channel of a heavy oil reservoir, which comprises a memory, a processor and a computer program stored on the memory and running on the processor, wherein the processor is coupled with the memory, and the processor executes the computer program to realize the identification method of the water channeling channel in the method embodiment.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims (6)

1. A method for identifying a water channeling channel of a heavy oil reservoir is characterized by comprising the following steps:
step 1, acquiring the average formation pressure of a target interval and the lowest pressure center point of the target interval, and taking a region of a first set pressure range around the lowest pressure center point as a potential boundary water invasion path D1;
step 2, acquiring the water inflow rate of each production well of the target interval, and taking the area with the water inflow rate higher than a first set rate threshold value as a potential boundary water invasion path D2;
step 3, obtaining the average permeability of the stratum of the whole target interval and the permeability of each position of the target interval, comparing the permeability of each position with the average permeability of the stratum, and taking a region higher than the average permeability of the stratum to a certain extent as a potential boundary water invasion path D3; alternatively, areas greater than the first set permeability threshold are designated as potential side water intrusion paths D3;
step 4, determining the water phase flow velocity distribution of the target interval through numerical simulation, and taking the area with the water phase flow velocity larger than a first set velocity threshold value as a potential side water invasion path D4;
and 5, integrating the four potential side water intrusion paths D1-D4 obtained above, and taking the overlapped area of the four areas as the finally identified water channeling channel.
2. The method for identifying a water channeling channel in a heavy oil reservoir according to claim 1, wherein the step 5 further comprises: according to the areas where the four areas coincide, a determination condition for accurately identifying the water channeling channel can be obtained: the formation pressure is smaller than a second set pressure threshold value, the water inflow rate is larger than a second set rate threshold value, the average permeability is larger than a second set permeability threshold value, and the water phase flow rate is larger than a second set rate threshold value.
3. The method for identifying the water channeling channel of the heavy oil reservoir as claimed in claim 1, wherein after the water channeling channel of the heavy oil reservoir is identified, the method further comprises the step of performing morphological description on the water invasion channel according to the exploitation mode of the reservoir.
4. An apparatus for identifying a water channeling pathway in a heavy oil reservoir, comprising a memory and a processor, and a computer program stored in the memory and executed on the processor, the processor being coupled to the memory, the processor implementing the following steps when executing the computer program:
step 1, acquiring the average formation pressure of a target interval and the lowest pressure center point of the target interval, and taking a region of a first set pressure range around the lowest pressure center point as a potential boundary water invasion path D1;
step 2, acquiring the water inflow rate of each production well of the target interval, and taking the area with the water inflow rate higher than a first set rate threshold value as a potential boundary water invasion path D2;
step 3, obtaining the average permeability of the stratum of the whole target interval and the permeability of each position of the target interval, comparing the permeability of each position with the average permeability of the stratum, and taking a region higher than the average permeability of the stratum to a certain extent as a potential boundary water invasion path D3; alternatively, areas greater than the first set permeability threshold are designated as potential side water intrusion paths D3;
step 4, determining the water phase flow velocity distribution of the target interval through numerical simulation, and taking the area with the water phase flow velocity larger than a first set velocity threshold value as a potential side water invasion path D4;
and 5, integrating the four potential side water intrusion paths D1-D4 obtained above, and taking the overlapped area of the four areas as the finally identified water channeling channel.
5. The device for identifying a water channeling channel in a heavy oil reservoir as set forth in claim 4, wherein the processor is further configured to: according to the areas where the four areas coincide, a determination condition for accurately identifying the water channeling channel can be obtained: the formation pressure is smaller than a second set pressure threshold value, the water inflow rate is larger than a second set rate threshold value, the average permeability is larger than a second set permeability threshold value, and the water phase flow rate is larger than a second set rate threshold value.
6. The device for identifying the water channeling channel of the heavy oil reservoir as claimed in claim 4, wherein the processor is further configured to perform morphology description on the water invasion channel according to the exploitation mode of the reservoir after identifying the water channeling channel of the heavy oil reservoir.
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