CN203239338U - Two-dimensional artificial core model for researching edge-bottom water oil reservoir water invasion rules - Google Patents
Two-dimensional artificial core model for researching edge-bottom water oil reservoir water invasion rules Download PDFInfo
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- CN203239338U CN203239338U CN 201320252678 CN201320252678U CN203239338U CN 203239338 U CN203239338 U CN 203239338U CN 201320252678 CN201320252678 CN 201320252678 CN 201320252678 U CN201320252678 U CN 201320252678U CN 203239338 U CN203239338 U CN 203239338U
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Abstract
The utility model relates to a two-dimensional artificial core model for researching edge-bottom water oil reservoir water invasion rules. The body of the two-dimensional artificial core model for researching the edge-bottom water oil reservoir water invasion rules is of a hexahedron, a water inlet is formed in the side face of the body, a high permeable transitional zone is arranged on one side, with the water inlet, of the body, and the high permeable transitional zone is arranged along the edge of the body. An injecting well mouth and an extracting well mouth are further formed in the body. Through the arrangement of the high permeable transitional zone, the two-dimensional artificial core model can simulate edge water and enable the edge water to be distributed evenly, can sufficiently simulate edge-bottom water oil reservoir situations, and solves the problems that a common core has no edge water simulation conditions and cannot be used as an edge-bottom water oil reservoir experimental model.
Description
Technical field:
The utility model relates to the model that uses in the bottom water reservoir research field of limit, what be specifically related to is for the two-dimentional artificial core model of studying limit bottom water reservoir Water invasion rule.
Background technology:
The most of oil field of China has entered middle high water-cut stage, the limit bottom water reservoir is in the majority, enter after the high water-cut stage exploitation, the oil production quickening of successively decreasing, matter of utmost importance is that the quick cone of water advances at the bottom of the limit, the non-homogeneity, producing well that its major influence factors has a stratum be apart from the pressure reduction of distance, limit water and the production area of limit water and reservoir temperature etc., thus at the bottom of the opposite side water fast cone to advance the research of the research of factor and Water invasion rule imperative.Laboratory physical simulation experiment is the important component part of these researchs, and in laboratory physical simulation experiment, suitable rock core model is essential, at present, carrying out the used rock core model of laboratory physical simulation experiment in the oilfield exploitation procedure mainly contains: the natural cylindrical rock core of 1. taking from the stratum, be characterized in having reflected truly the characteristics such as the mineral composition of subsurface rock and pore structure, but obtain difficulty, cost is high; 2. microcosmic glass etching model, adopt the photochemical etching technical matters with the pore structure photoetching of natural core to flat glass.Be characterized in that displacement process is visual, reusable, but size is little, and cost is high, and can't simulate the limit bottom water reservoir; 3. common artificial dull and stereotyped rock core is widely used in indoor physical simulation at present.Be characterized in to a certain extent simulate formation rock porosity and permeability, but can not simulate more exactly limit bottom water reservoir situation, can only be used for general displacement test.
Summary of the invention:
The purpose of this utility model provides the two-dimentional artificial core model for research limit bottom water reservoir Water invasion rule, and it is used for solving the problem that the used rock core model of present oilfield exploitation procedure simulated experiment can not be simulated limit bottom water reservoir situation exactly.
The technical scheme that its technical problem that solves the utility model adopts is: the main body of this two-dimentional artificial core model for studying limit bottom water reservoir Water invasion rule is hexahedron, the side of main body is provided with water inlet, the side that main body arranges water inlet has height to ooze intermediate zone, and height oozes intermediate zone along the body rim setting; Also be provided with on the main body and inject well head and extraction well head.
Water inlet has four in the such scheme, and four water inlets evenly are arranged on the side of main body.
Inject the center that well head is arranged on main body in the such scheme, the extraction well head comprises production wellhead and supplement production well head, and wherein the supplement production well head is arranged on the periphery of production wellhead.
The width of such scheme middle and high infiltration intermediate zone is 2cm.
The utlity model has following beneficial effect:
1, the utility model oozes intermediate zone by height is set, and can simulate limit water, and limit water is evenly distributed, and common rock core does not possess simulation limit water condition without this type of intermediate zone, can't serve as limit bottom water reservoir experimental model.And the utility model can fully be simulated limit bottom water reservoir situation, and the distribution that rock core limit water comparatively is more meets limit bottom water reservoir situation.
2, the utility model withstand high temperatures and high pressure, easy to make are conducive to the research to this type of oil reservoir Water invasion rule.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the front elevation drawing of main body in the utility model.
1 main body, 2 water inlets, 3 height ooze intermediate zone 4 and inject well head 5 production wellhead 6 supplement production well heads.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
In conjunction with Fig. 1, shown in Figure 2, the main body 1 of this two-dimentional artificial core model for studying limit bottom water reservoir Water invasion rule is the hexahedron of a 30cm * 30cm * 3cm, the side of main body 1 is provided with water inlet 2, the side that main body 1 arranges water inlet 2 has height to ooze intermediate zone 3, height oozes intermediate zone 3 along the body rim setting, and the width that height oozes intermediate zone 3 is 2cm, and height oozes intermediate zone 3 and communicates with water inlet 2, height oozes intermediate zone 3 so that limit water can comparatively evenly distribute, and can simulate preferably the limit bottom water reservoir; Water inlet 2 has four in the present embodiment, and four water inlets 2 evenly are arranged on the side of main body 1; Also be provided with on the main body 1 and inject well head 4 and extraction well head, inject well head 4 and extraction well head and be the interface that arranges on the main body, be used for being connected threadably with the pipeline of indoor physical simulation injection extraction equipment.Inject the center that well head 4 is arranged on main body 1, the extraction well head comprises production wellhead 5 and supplement production well head 6, and production wellhead 5 has four, and supplement production well head 6 has four, and supplement production well head 6 is arranged on the periphery of production wellhead 5.Production wellhead 5 and supplement production well head 6 can be used for comparison production well spacing limit water distance to the impact of Water invasion rule, the impact that can fully simulate many factors opposite side bottom water encroachment rule.
The sensitivity analysis of pressure reduction opposite side bottom water encroachment when utilizing the utility model to carry out the homogeneous model:
At first, to mix through cement and the quartz sand that adds gentle dilution, empirical relation according to quartz sand size and permeability, with reference to oil reservoir actual conditions allotment mixture, secondly, use said method and mix height and ooze the band mixture, with two kinds of mixtures and drain into and cut out the rock core required size in the mould behind the pressing and stoving, coat the two-dimentional artificial core that obtains moulding behind the epoxy resin.The two-dimentional artificial core that completes is placed horizontally in 80 ℃ the insulating box.9 interfaces on the main body 1 (1 is injected well head, 4 production wellhead, 4 supplement production well heads) all seal with plug.Find time and saturation water by 4 water inlets 2 of side, then use 4 peripheral supplement production well head saturated oils on the main body, make model evenly saturated as far as possible.Take homogeneous rock core model as example, perm-plug method is 1520 * 10
-3μ m
2Degree of porosity 24.5%, oil saturation 79.3%, temperature is in 45 ℃ of situations, RC is to inject well head 4, and the 4 mouthfuls of production wellhead in centre are arranged respectively different pressure reduction, and saturated sufficient rock core model is carried out flood pot test, measure respectively the fluid of every mouthful of well, fuel-displaced and water yield, and be analyzed in different pressure reduction instantaneous water influx and cumulative water encroachment amount.
Claims (4)
1. two-dimentional artificial core model that is used for research limit bottom water reservoir Water invasion rule, it is characterized in that: the main body (1) of this two-dimentional artificial core model for studying limit bottom water reservoir Water invasion rule is hexahedron, the side of main body (1) is provided with water inlet (2), the side that main body (1) arranges water inlet has height to ooze intermediate zone (3), and height oozes intermediate zone (3) along the body rim setting; Also be provided with on the main body (1) and inject well head (4) and extraction well head.
2. the two-dimentional artificial core model for research limit bottom water reservoir Water invasion rule according to claim 1, it is characterized in that: described water inlet (2) has four, and four water inlets (2) evenly are arranged on the side of main body (1).
3. the two-dimentional artificial core model for research limit bottom water reservoir Water invasion rule according to claim 2, it is characterized in that: described injection well head (4) is arranged on the center of main body (1), the extraction well head comprises production wellhead (5) and supplement production well head (6), and wherein supplement production well head (6) is arranged on the periphery of production wellhead (5).
4. according to claim 1 and 2 or 3 described two-dimentional artificial core models for research limit bottom water reservoir Water invasion rule, it is characterized in that: the width that described height oozes intermediate zone (3) is 2cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320252678 CN203239338U (en) | 2013-05-11 | 2013-05-11 | Two-dimensional artificial core model for researching edge-bottom water oil reservoir water invasion rules |
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| CN 201320252678 CN203239338U (en) | 2013-05-11 | 2013-05-11 | Two-dimensional artificial core model for researching edge-bottom water oil reservoir water invasion rules |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358552A (en) * | 2014-11-12 | 2015-02-18 | 中国石油天然气股份有限公司 | Visual plane sand filling model for oil displacement experiment |
| CN105604545A (en) * | 2015-12-17 | 2016-05-25 | 中国石油天然气股份有限公司 | Experimental device and method for simulating gas reservoir water invasion |
| CN106194164A (en) * | 2016-08-10 | 2016-12-07 | 中国石油天然气股份有限公司 | Rock core experiment simulation method and device for edge-bottom water reservoir development |
| CN106285645A (en) * | 2016-08-23 | 2017-01-04 | 东北石油大学 | A kind of low permeability fractured edge-bottom water gas reservoir water enchroachment (invasion) location physical simulating method |
| CN106869879A (en) * | 2017-02-28 | 2017-06-20 | 中国石油化工股份有限公司 | Note adopts the experimental technique of horizontal contradiction in a kind of simulation well group |
| CN108316917A (en) * | 2018-01-27 | 2018-07-24 | 东北石油大学 | A method of being built with edge-wa- ter reservoir waterflooding extraction model |
| CN110778312A (en) * | 2019-10-09 | 2020-02-11 | 东北石油大学 | Model for simulating gas reservoir edge and bottom water invasion and method for calculating water invasion coefficient |
| CN111101910A (en) * | 2019-11-19 | 2020-05-05 | 中海石油(中国)有限公司深圳分公司 | Water displacement experimental device and experimental method for bottom water two-dimensional flat plate physical model |
| CN111594112A (en) * | 2019-02-19 | 2020-08-28 | 中国石油天然气股份有限公司 | Natural water flooding and artificial water flooding oil displacement simulation device and method |
| CN113027431A (en) * | 2021-03-12 | 2021-06-25 | 东北石油大学 | Semi-sealed two-dimensional seepage model and manufacturing method thereof |
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2013
- 2013-05-11 CN CN 201320252678 patent/CN203239338U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358552A (en) * | 2014-11-12 | 2015-02-18 | 中国石油天然气股份有限公司 | Visual plane sand filling model for oil displacement experiment |
| CN105604545A (en) * | 2015-12-17 | 2016-05-25 | 中国石油天然气股份有限公司 | Experimental device and method for simulating gas reservoir water invasion |
| CN105604545B (en) * | 2015-12-17 | 2019-05-07 | 中国石油天然气股份有限公司 | Experimental device and method for simulating gas reservoir water invasion |
| CN106194164A (en) * | 2016-08-10 | 2016-12-07 | 中国石油天然气股份有限公司 | Rock core experiment simulation method and device for edge-bottom water reservoir development |
| CN106194164B (en) * | 2016-08-10 | 2019-04-12 | 中国石油天然气股份有限公司 | Rock core experiment simulation method for edge-bottom water reservoir development |
| CN106285645B (en) * | 2016-08-23 | 2019-04-16 | 东北石油大学 | A kind of low permeability fractured edge-bottom water gas reservoir water enchroachment (invasion) positioning physical simulating method |
| CN106285645A (en) * | 2016-08-23 | 2017-01-04 | 东北石油大学 | A kind of low permeability fractured edge-bottom water gas reservoir water enchroachment (invasion) location physical simulating method |
| CN106869879A (en) * | 2017-02-28 | 2017-06-20 | 中国石油化工股份有限公司 | Note adopts the experimental technique of horizontal contradiction in a kind of simulation well group |
| CN108316917A (en) * | 2018-01-27 | 2018-07-24 | 东北石油大学 | A method of being built with edge-wa- ter reservoir waterflooding extraction model |
| CN111594112A (en) * | 2019-02-19 | 2020-08-28 | 中国石油天然气股份有限公司 | Natural water flooding and artificial water flooding oil displacement simulation device and method |
| CN111594112B (en) * | 2019-02-19 | 2022-08-05 | 中国石油天然气股份有限公司 | Natural water flooding and artificial water flooding oil displacement simulation device and method |
| CN110778312A (en) * | 2019-10-09 | 2020-02-11 | 东北石油大学 | Model for simulating gas reservoir edge and bottom water invasion and method for calculating water invasion coefficient |
| CN110778312B (en) * | 2019-10-09 | 2022-08-30 | 东北石油大学 | Model for simulating gas reservoir edge and bottom water invasion and method for calculating water invasion coefficient |
| CN111101910A (en) * | 2019-11-19 | 2020-05-05 | 中海石油(中国)有限公司深圳分公司 | Water displacement experimental device and experimental method for bottom water two-dimensional flat plate physical model |
| CN113027431A (en) * | 2021-03-12 | 2021-06-25 | 东北石油大学 | Semi-sealed two-dimensional seepage model and manufacturing method thereof |
| CN113027431B (en) * | 2021-03-12 | 2021-09-07 | 东北石油大学 | Semi-sealed two-dimensional seepage model and manufacturing method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20140511 |