CN111207979A - Method for manufacturing artificial strip electrode core - Google Patents
Method for manufacturing artificial strip electrode core Download PDFInfo
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- CN111207979A CN111207979A CN202010133370.8A CN202010133370A CN111207979A CN 111207979 A CN111207979 A CN 111207979A CN 202010133370 A CN202010133370 A CN 202010133370A CN 111207979 A CN111207979 A CN 111207979A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/248—Moulding mineral fibres or particles bonded with resin, e.g. for insulating or roofing board
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/364—Embedding or analogous mounting of samples using resins, epoxy
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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Abstract
The invention relates to a method for manufacturing an artificial strip electrode core, which comprises the following steps: designing and manufacturing a pressing plate, designing a plurality of strip electrode cores which are uniformly distributed on the pressing plate, designing a plurality of pairs of electrode holes which are uniformly distributed on each strip electrode core, and drawing the positions of the electrode holes according to the distribution of the electrodes; manufacturing electrodes, wherein the lengths of the electrodes are equal; putting the quartz sand mixture into a mold, covering an upper pressing plate, pressing downwards, and inserting an electrode into a rock core through an electrode hole in the pressing plate; placing an auxiliary strip between each group of electrode pairs, continuously pressing the rock core to 45mm, pulling out a pressing plate, placing the rock core in a thermostat, drying, and cutting the whole rock core one by one according to a plurality of designed strip electrode rock cores to obtain the artificial strip electrode rock core. The invention ensures the accurate spatial position of the electrode and the vertical degree of the electrode in the rock core, simultaneously ensures the accuracy of the spatial coordinate of the electrode and accurately calculates the water drive front edge.
Description
The technical field is as follows:
the invention relates to the field of artificial core preparation processes, in particular to a method for manufacturing an artificial strip electrode core.
Background art:
water injection is the most common, most direct and simple method for maintaining stratum energy, realizing stable yield and improving recovery efficiency in the process of oil field development. The water flooding front edge monitoring technology is utilized to monitor the water flooding well, so that the water flooding front edge, the dominant water flooding direction and the spread range of injected water of the well can be obtained, and a reliable technical basis is provided for reasonably deploying an injection and production well network, excavating residual oil and improving final recovery ratio. The water flooding front technology is used as a new technology for developing low permeability oil fields, and is mainly used for carrying out field monitoring by using a tracer method and a microseism testing method at present. But the method can not monitor the heterogeneous low-permeability reservoir of the mine in real time and has the defects of low precision, complex construction, long period, high cost and the like. The resistivity method can accurately monitor the position of the water flooding front edge, and the problems are avoided.
The existing electrode arrangement method of the electrode core usually adopts the mode of directly inserting an electrode for one-time compaction, so that the problems that ① electrodes are bent and cannot be ensured to be in a vertical state, ② electrode pairs cannot strictly ensure equal distance, and the calculation accuracy of the water flooding front edge is seriously influenced due to inaccurate size position are solved.
Therefore, a preparation method of the strip electrode core is needed in the field, the defects of the prior art are overcome according to the accurate electrode position of the pressing plate, and the relevant experimental requirements are met.
The invention content is as follows:
the invention aims to provide a method for manufacturing an artificial strip electrode core, which is used for solving the problems that the electrode is bent, the electrode cannot be ensured to be in a vertical state and the electrode pair cannot strictly ensure equal distance in the conventional arrangement method for directly inserting and compacting the electrode of the electrode core.
The technical scheme adopted by the invention for solving the technical problems is as follows: the manufacturing method of the artificial strip electrode core comprises the following steps:
designing a pressing plate, wherein the design thickness of the pressing plate is 30mm, the length and width dimensions are determined according to a core manufacturing mold, the number of pairs of electrodes is designed according to experiment requirements, a plurality of strip electrode cores are uniformly distributed on the pressing plate, a plurality of pairs of electrode holes are uniformly distributed on each strip electrode core, the positions of the electrode holes are drawn according to the distribution of the electrodes, and the diameter of each electrode hole is 2 mm;
step (2), manufacturing a pressing plate, selecting an aluminum plate with proper hardness, and drilling by using a numerical control machine according to design;
step (3), manufacturing electrodes with equal length and diameter of 1-1.5 mm;
step (4), manufacturing a strip electrode core, firstly, placing a mold, mixing quartz sand with different meshes and epoxy resin glue according to a certain proportion, rubbing the mixture uniformly to obtain a quartz sand mixture, and placing the quartz sand mixture into the mold; secondly, covering a pressing plate to press the core to 55mm, and maintaining the pressure for 10 minutes; thirdly, inserting an electrode into the rock core through an electrode hole on the pressing plate; fourthly, placing an auxiliary strip between each group of electrode pairs, wherein the auxiliary strip is higher than the electrodes to prevent the electrodes from being bent in the pressing process, and fifthly, continuously pressing the rock core from 55mm to 45mm, taking out a pressing plate, placing the rock core in an 80 ℃ thermostat for 24 hours, wherein the electrodes are arranged in the rock core according to the set position and depth; and sixthly, cutting the whole core one by one according to the plurality of long strip electrode cores designed in the step (1) to obtain an artificial long strip electrode core, wherein the thickness of the artificial long strip electrode core is 45 mm.
In the scheme, in the step (1), the length, the width and the height of the pressing plate are respectively 308mm, 308mm and 30mm, the pressing plate is uniformly distributed with 6 long electrode cores, and each pressing plate is provided with 8 pairs of electrode holes which are uniformly distributed.
In the scheme, a square is drawn on the pressing plate, the side length of the square is 300mm, the distance between the square and the edge of the aluminum alloy plate is 4mm, electrodes are distributed at the position 22.5mm away from the periphery of the square, the electrodes are uniformly distributed at equal intervals, and the electrode pairs in each row and the electrode pairs in each column are distributed at equal intervals to ensure the accuracy and the effectiveness of an experiment.
In the scheme, the electrode material in the step (3) is a copper wire, and the length of the electrode is 100 mm.
In the scheme, the thickness of the auxiliary strip in the step (4) is 30mm, so that the electrode can be effectively prevented from being bent in the core pressing process.
And (4) inserting the electrodes into the rock core through the electrode holes, placing the auxiliary strip, pressing the rock core on the auxiliary strip by using the auxiliary plate to continuously press the rock core from 55mm to 45mm, and pulling out the pressing plate.
The invention has the following beneficial effects:
1. the conventional electrode arrangement method for the electrode core usually adopts one-step compaction of a directly inserted electrode, so that the problems that ① electrodes are bent and cannot be ensured to be in a vertical state, ② electrode pairs cannot strictly ensure equal distance, and the accuracy of calculation of the water drive front edge is seriously influenced due to inaccurate size position are solved.
2. The invention has the advantages that the pressing plate is simple to manufacture and is not easy to deform after long-term use; the material source is wide and easy to obtain, and the cost is low; the manufacturing process is simple and has strong repeatability.
Description of the drawings:
FIG. 1 is a schematic view of a platen according to the present invention.
Fig. 2 is a schematic view of the electrode core pressing of the present invention.
FIG. 3 is a schematic diagram of a strip electrode core according to the present invention
In the figure: 1 electrode, 2 flat rock cores, 3 pressing plates, 4 auxiliary strips, 5 auxiliary plates, 6 long-strip electrode rock cores, 7 electrode pairs.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1 to 3, in the method for manufacturing the artificial strip electrode core, an aluminum alloy flat plate with a certain thickness and a fixed size is used as a pressing plate 3, and an electrode hole is machined on the pressing plate 3 according to a pre-designed electrode arrangement structure diagram. The electrode hole pairs on the pressing plate 3 are designed according to requirements, and the electrode 1 is inserted into the rock core. The method specifically comprises the following steps:
and (1) designing a pressing plate. The pressing plate 3 is designed by using Solidworks software, the design thickness of the pressing plate 3 is 30mm, and the length and the width are determined according to a core manufacturing mold. The logarithm of the electrode is designed according to the experimental needs, for example, on a platen with 308 × 30mm, the distribution of 6 long electrode cores 6 is designed, each core has 8 pairs of electrode holes which are uniformly distributed, the positions of the electrode holes are drawn according to the distribution of the electrodes 1, and the diameter of the electrode holes is 2 mm.
And (2) manufacturing a pressing plate. Selecting an aluminum plate with proper hardness, and drilling by using a numerical control machine tool according to the design to obtain an electrode hole; a square is drawn on the press plate 3, with a dimension of 300mm, and the distance from the peripheral edge of the aluminum alloy plate is 4 mm. The electrodes 1 are distributed at the position 22.5mm away from the periphery of the square, and the electrode pairs 7 are uniformly distributed at equal intervals.
And (3) manufacturing an electrode. Manufacturing an electrode 1 with the length of 100mm, wherein the diameter of the electrode 1 is 1-1.5 mm; the electrode 1 is made of copper wire. The position and the space are strict in size, and are distributed at equal intervals among rows and columns, so that the accuracy and the effectiveness of the experiment are ensured.
And (4) manufacturing a strip electrode core. Firstly, placing a mould, mixing quartz sand with different meshes and epoxy resin glue (ethylene diamine) according to a certain proportion, rubbing the mixture until the mixture is uniform, and uniformly placing the mixture into the mould. And secondly, covering the pressing plate 3 to press the core to 55mm, and maintaining the pressure for 10 minutes. And thirdly, inserting the electrode 1 into the rock core through the electrode hole, so that the straightness of the electrode is ensured, and meanwhile, the accuracy of the spatial coordinate of the electrode is ensured. And fourthly, placing an auxiliary strip 4 between each group of electrode pairs, wherein the thickness of the auxiliary strip 4 is 30mm, so that the electrodes are prevented from being bent in the pressing process. And fifthly, pressing the auxiliary plate 5 on the auxiliary strip 4, continuously pressing the rock core from 55mm to 45mm, wherein the auxiliary strip 4 is higher than the electrode 1, so that the electrode 1 cannot be pressed at the moment, the electrode 1 is ensured to keep the original straightness, pulling out the pressing plate 3, placing the rock core in an 80 ℃ incubator for 24h, and arranging the electrode 1 in the rock core according to the set position and depth. And sixthly, cutting the whole flat plate core 2 into 6 long-strip electrode cores 6 with the size of 45mm by 300mm, and finishing the manufacture of the long-strip electrode cores 6 with the thickness of 45 mm.
Example 1:
this example is a process for making a 45mm by 300mm long strip electrode core.
(1) A pressing plate is designed by using Solidworks software, distribution positions for manufacturing 6 long electrode cores are designed on the pressing plate, and each electrode core is provided with 8 pairs of electrode holes which are uniformly distributed. As shown in fig. 1.
(2) Selecting a proper aluminum plate, and processing the aluminum plate into an aluminum alloy flat plate with the thickness of 308mm by 30 mm; according to the design of the pressing plate, squares are drawn on the aluminum plate, the size of each square is 300 mm-300 mm, and the distance from the periphery of the aluminum alloy plate to the edge is 4 mm. The position of the electrode is drawn and the hole is drilled.
(3) Electrodes were made to a length of 100 mm.
(4) Making 45mm 300mm long-strip electrode core, placing a mould, uniformly mixing quartz sand and epoxy resin glue with different meshes according to a certain proportion, adding the mixture into the mould, and covering a pressing plate to press the mixture to 55 mm.
(6) The electrodes were inserted into the core through the platen, several 30 x 300mm aluminum alloy auxiliary bars were placed on the platen last time, the core was pressed from 55mm to 45mm using the auxiliary plate, and the platen was lifted out. As shown in fig. 2.
(7) The thickness of the cutting saw blade is fully considered to be 4mm when the pressing plate is designed, the manufactured whole electrode core is cut into 6 long electrode cores with the size of 45mm x 300mm, and the long electrode cores are manufactured. As shown in fig. 3.
Claims (6)
1. A method for manufacturing an artificial strip electrode core is characterized by comprising the following steps:
designing a pressing plate, wherein the design thickness of the pressing plate (3) is 30mm, the length and width of the pressing plate are determined according to a core manufacturing mold, the logarithm of an electrode (1) is designed according to experimental needs, a plurality of strip electrode cores (6) are designed on the pressing plate (3) and are uniformly distributed, each strip electrode core (6) is provided with a plurality of pairs of electrode holes which are uniformly distributed, the positions of the electrode holes are drawn according to the distribution of the electrode, and the diameter of each electrode hole is 2 mm;
step (2), manufacturing a pressing plate, selecting an aluminum plate with proper hardness, and drilling by using a numerical control machine according to design;
step (3), manufacturing electrodes, wherein the lengths of the electrodes (1) are equal, and the diameters of the electrodes (1) are 1-1.5 mm;
step (4), manufacturing a strip electrode core, firstly, placing a mold, mixing quartz sand with different meshes and epoxy resin glue according to a certain proportion, rubbing the mixture uniformly to obtain a quartz sand mixture, and placing the quartz sand mixture into the mold; secondly, covering a pressing plate (3) to press the core to 55mm, and maintaining the pressure for 10 minutes; thirdly, inserting the electrode (1) into the rock core through an electrode hole on the pressing plate (3); fourthly, placing an auxiliary strip (4) between each group of electrode pairs (7), wherein the auxiliary strip (4) is higher than the electrodes (1) to prevent the electrodes (1) from being bent in the pressing process, and fifthly, continuously pressing the rock core from 55mm to 45mm, lifting the pressing plate (3), placing the rock core in an 80 ℃ incubator for 24 hours, and arranging the electrodes (1) in the rock core according to the set position and depth; and sixthly, cutting the whole core one by one according to the plurality of long strip electrode cores designed in the step (1) to obtain an artificial long strip electrode core, wherein the thickness of the artificial long strip electrode core is 45 mm.
2. The method for manufacturing the artificial strip electrode core according to claim 1, wherein the method comprises the following steps: in the step (1), the length, the width and the height of the pressing plate (3) are respectively 308mm, 308mm and 30mm, the pressing plate (3) is uniformly distributed with 6 long electrode cores (6), and each long electrode core has 8 pairs of electrode holes which are uniformly distributed.
3. The method for making an artificial strip electrode core according to claim 2, wherein the method comprises the following steps: the pressing plate (3) is provided with a square, the side length of the square is 300mm, the distance between the square and the edge of the aluminum alloy plate is 4mm, electrodes (1) are distributed at a position 22.5mm away from the periphery of the square, the electrode pairs (7) are uniformly distributed at equal intervals, and the electrode pairs in each row (7) and the electrode pairs in each column (7) are distributed at equal intervals.
4. The method for making an artificial strip electrode core according to claim 3, wherein the method comprises the following steps: in the step (3), the electrode (1) is made of a copper wire, and the length of the electrode is 100 mm.
5. The method for making an artificial strip electrode core according to claim 4, wherein the method comprises the following steps: in the step (4), the thickness of the auxiliary strip (4) is 30 mm.
6. The method for making an artificial strip electrode core according to claim 5, wherein the method comprises the following steps: and (4) inserting the electrode (1) into the rock core through the electrode hole, placing the auxiliary strip (4), pressing the auxiliary strip (4) by using the auxiliary plate (5), continuously pressing the rock core from 55mm to 45mm, and pulling out the pressing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133370.8A CN111207979A (en) | 2020-03-01 | 2020-03-01 | Method for manufacturing artificial strip electrode core |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010133370.8A CN111207979A (en) | 2020-03-01 | 2020-03-01 | Method for manufacturing artificial strip electrode core |
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| CN202010133370.8A Pending CN111207979A (en) | 2020-03-01 | 2020-03-01 | Method for manufacturing artificial strip electrode core |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798921A (en) * | 2010-02-21 | 2010-08-11 | 大庆油田有限责任公司 | Corestone manufacture method |
| CN103527182A (en) * | 2013-10-28 | 2014-01-22 | 东北石油大学 | Experimental device for steam assisted gravity drainage driving vertical differentiation of heavy oil |
| CN103978542A (en) * | 2014-06-05 | 2014-08-13 | 东北石油大学 | Corestone compaction device |
| CN109946321A (en) * | 2019-03-29 | 2019-06-28 | 广东利元亨智能装备股份有限公司 | The detection method of battery core flexible circuit board |
-
2020
- 2020-03-01 CN CN202010133370.8A patent/CN111207979A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798921A (en) * | 2010-02-21 | 2010-08-11 | 大庆油田有限责任公司 | Corestone manufacture method |
| CN103527182A (en) * | 2013-10-28 | 2014-01-22 | 东北石油大学 | Experimental device for steam assisted gravity drainage driving vertical differentiation of heavy oil |
| CN103978542A (en) * | 2014-06-05 | 2014-08-13 | 东北石油大学 | Corestone compaction device |
| CN109946321A (en) * | 2019-03-29 | 2019-06-28 | 广东利元亨智能装备股份有限公司 | The detection method of battery core flexible circuit board |
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Application publication date: 20200529 |
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