CN1035496C - Micro-pore model of true reservior rock and making technology thereof - Google Patents
Micro-pore model of true reservior rock and making technology thereof Download PDFInfo
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- CN1035496C CN1035496C CN93105170A CN93105170A CN1035496C CN 1035496 C CN1035496 C CN 1035496C CN 93105170 A CN93105170 A CN 93105170A CN 93105170 A CN93105170 A CN 93105170A CN 1035496 C CN1035496 C CN 1035496C
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Abstract
The present invention discloses a microscopic pore model of true reservoir rock and a manufacturing technology thereof. The model of the present invention is mainly composed of a true reservoir rock piece, a needle head, a guiding groove, cover glass, carrier glass and epoxy resin glue. The manufacturing technology of the present invention is mainly characterized in that the pore characteristics of original true reservoir rock and the proper bonding of the upper surface of the rock piece and the cover glass are kept to the greatest extent. The present invention has the advantages of simple structure and easy simple manufacture; furthermore, the present invention not only is suitable for the research on recovery ratio increase of oil-gas fields but also is suitable for the research on many other aspects, such as the pollution of various oil layers, acidification of the oil layers, water plugging relief, etc.
Description
The present invention relates to a kind of novel empirical model and manufacturing technology thereof that is used for oil-field development, raising reservoir recovery (tar productivity) research, particularly a kind of usefulness is truly preserved micro pore model and the manufacturing technology thereof that (oil) rock is made.
In recent years, the discovery of new elephant reduces day by day in the world wide, to the transformation and the development and use of maturing field, improves oil recovery rate and seems particularly important.Each oil field of east China that current production rate and reserves all account for more than 90% enters high water-cut stage in succession, and water and oil control, raising reservoir recovery have more outstanding meaning.The simulated experiment of micro pore model (physical model) water displacing oil is to improve one of important means of reservoir recovery research.The research history of the external existing many decades of this work, the empirical model that uses is broadly divided into three classes at present: 1, intergranular is filled model, fill model etc. as beaded glass, resin balls and sand: 2, capillary model, as kapillary pencil and the netted model of kapillary etc.; 3, glass etching model, etching and the various pore networks of photoetching method etching on glass plate are made model by hand.The common advantage of above-mentioned model be can the Direct observation medium in the displacement process and the profit distribution scenario of two-phase fluid, its disadvantage is that these models are not real reservoir rocks, all there is a big difference with true reservoir rock for its pore texture (pore shape, big or small filling material etc.) and Surface Physical Chemistry character, and this is simple for a long time and insoluble problem.With the flood pot test of true oil-saturated reservoir rock masonry, true and invisible, and test with above-mentioned microvisual model, visible and untrue.
The purpose of this invention is to provide a kind of true reservoir rock micro pore model and manufacturing technology thereof.Real reservoir rock is worn into the very little petrographic thin section of thickness, promptly make true reservoir rock micro pore model of the present invention with sticking the picking up of glass plate.Aspect manufacturing technology of the present invention, keep the appropriate bonding of pore character and the core upper surface and the glass plate of former reservoir rock as far as possible.
Implementation procedure of the present invention:
At first in conjunction with the accompanying drawings true reservoir rock micro pore model structure of the present invention and experiment flow are illustrated:
1, is depicted as the model structure synoptic diagram as accompanying drawing 1 (a, b).This model mainly is made up of petrographic thin section to be measured (1), syringe needle (2), approaching channel (3), syringe needle (4), cover glass (5), year glass (6), epoxide-resin glue (7);
2, be the model experiment flow diagram as shown in Figure 2, experiment flow of the present invention mainly is made up of power source (A), minute-pressure difference measurements system (B), oil (C), water (D), model (E) and micro-video recording system (F).
Secondly in conjunction with the accompanying drawings modelling technology of the present invention is described further:
1, model carries the processing of glass (6) and cover glass (5): will be cut into 30 * 50mm with the diamond cutter through throwing the flat thick glass plate of handling of 2mm
2The glass sheet chamfered edge clean that the back does to carry glass (6) and cover glass (5) is stand-by; The paraffin wax (temperature can not iron burnt pen hair) of fusing is applied to all surfaces (crackle can not appear in the paraffin wax surface) of year glass (6) with writing brush, and on the paraffin wax of year glass (6), carve long 15-17mm along its length with the two ends suitable position of one side, the finedraw of wide 1.5mm (8,9) allows the bottom surface in slit expose glass wait corrosion; The plastic cup that hydrofluorite is housed is put into water-bath about 40 ℃, treat again will be to be corroded behind the hydrofluorite temperature stabilization the cured microslide (6) that is coated with put into the groove (8,9) that hydrofluorite the erodes away dark about 1-1.5mm diameter of medical children scalp pin (or slightly be deeper than) and get final product; The paraffin that is coated on the microslide (6) is removed in heating, wipes the corrosion reaction foreign material in residual paraffin and the needle tray (8,9), cleans microslide (6) back stand-by (as Fig. 3)
2, the processing of model core substrate:
1. the cutting of core, shaping and washing oil technology: get reservoir rock core to be studied and be numbered, it is cut into the thick sliver of 6～8mm by the infiltration direction, be shaped to 24 * 18 * 3mm through a thick fine lapping
3Little rectangular parallelepiped sliver (1), with prepared Chinese ink numbering is marked on the sliver face; To have the sliver of compile annotating number and immerse in the phenixin that is contained in the extracting instrument or the mixed liquid of alcohol-benzene and carry out washing oil, it is stand-by to clean the back oven dry.
2. the injection body of sliver (1) and polish technology:, need sliver (1) saturated before the abrasive disc with solubility organic hyaline monomer (liquid) in order to protect the hole that stays behind sliver (1) washing oil; The preparation of solution--pour methyl-prop diluted acid formicester into beaker, splash into 3-5 and drip the sodium hydroxide saturated solution, stir and remove sediment, get 0.15% hardening agent (azo-bis-isobutyl cyanide) of general assembly (TW) again and pour beaker into, the back that stirs is stand-by; Sliver to be annotated (1) is put into test tube (10), (as processing a plurality of slivers simultaneously, then) separate, put into the drying bottle that is inserted with funnel and sealing, pour the organic hyaline monomer solution for preparing into funnel, vacuumize and reach 5 * 10 with mica sheet (12)
-2During torr, open hopper valve, make solution splash into test tube, flood and to exceed the benefit of sliver (1) about more than 1/5 (as Fig. 4) up to solution (11); Take out test tube, put into weighing apparatus tepidarium (80-85 ℃) after 3 hours organic glass begin to solidify gradually by thickness, take out test tube, smash the glass outer knot and take out the sliver of filling in (1) and put into 60 ℃ of baking ovens bakings 6-8 hour; The sliver (1) of filling in organic glass is roughly ground till fresh the appearance, and fine grinding is flat again is labeled in its numbering on this surface.
3, the processing technology of sliver bottom surface: oneself is polished the numbered sliver of mark (1) be close to equably on the mill of wafer lapping machine with paraffin or Canadian resin glue, carry out thickness grinding and polishing processing, allow in the dish sample rock face be advisable (that should not grind is dark excessively) intactly occur; The rock sample that polishes is polished the back lower wall more by hand with burnishing powder on flat glass plate, should try one's best during lower wall does not make sticking dish agent such as paraffin or rosin stain polished surface.
4, the bonding process of sliver bottom surface: four inclines that will perform the sliver (1) of bottom surface grind fresh of rock with emery on flat glass plate, and are fixed to 22 * 15mm
2Model core (as Fig. 6); Polished sliver is washed, clean with clean cotton yarn or silk cloth, treat to be adjacent to glass sheet (6) center of carrying that has needle tray (8,9) face that is bonded in epoxy resin or multi-purpose adhesive (7) behind the airing, treat to number after glue (7) solidifies and be engraved in microslide (6) bottom outer surface suitable position (avoiding rock sample face position) with diamant, on sliver (1) glass sheet on every side, coat the thick multi-purpose adhesive of about 0.3mm then, and manage to catch up with bubble except that near the glue rock sample side, treating changes next procedure (as Fig. 6 a, b) after the adhesive curing.
5, the processing technology of sliver (1) upper surface: glass (6) outside surface that carries that will glue sliver (1) is scraped and is wiped clean, and stick on equably on the mill of wafer lapping machine, be milled to the polishing back lower wall of (paying special attention to the flatness of flour milling) about the about 0.2mm of rock thickness again with carse, medium and small emery successively; Put into the chloroform bubble behind the good slice, thin piece lower wall and develop a film quarters throwing, remove the organic glass of rock in stitching, but that the time is difficult for is long, otherwise multi-purpose adhesive is floated or lose viscosity and scrap; The sliver (1) of pruning exceeds its surperficial glue because of bubble rises on every side; The rock sample of the about 1mm of horizontal each excision forms approaching channel (3) at the most advanced and sophisticated position of two needle trays (8,9), and cuts out the multi-purpose adhesive that reaches in the needle tray apart from the about 1mm distance in needle tray edge, to form reservoir channel (as Fig. 7).
6, cover glass (5) and the bonding of sliver (1) and the bonding process of syringe needle: the thickness multi-purpose adhesive (or epoxide-resin glue) that will solidify soon is coated in the vacuum rubber surface equably, be bonded at sliver (1) like impressing again and go up forming glue-line as thin as a wafer, and be coated with again on the curing glue face of sliver (1) both sides and needle tray (8,9) both sides a bit that very thin rare glue makes it a little more than sliver (1) surface; With cover glass (5) to be bonded in sliver (1) upper surface place perpendicular to surface pressing greatly, accomplish that glue does not flow into the slit, sliver (1) surface is all bonding with cover glass (5), does not allow when being preferably in bonding produce a little horizontal relative displacements between sliver (1) surface and the cover glass (5); After treating adhesive curing, medical children's scalp acupuncture is inserted needle tray, again with multi-purpose adhesive clamp-on pin hole length half, exterior portion and edge of model are consolidated; Sliver (1) is carried between glass (6) and the cover glass (5) no Jiao Chu on every side to be inserted rare glue and waits to solidify back correction model outward appearance and get final product.
Claims (2)
1, a kind of true reservoir rock micro pore model, form by truly preserving sliver (1), syringe needle (2), approaching channel (3), syringe needle (4), cover glass (5), year glass (6) and bonding agent (7), it is characterized in that: to be studied truly preserves sliver (1) with the sticking securely center that is sandwiched between cover glass (5) and year glass (6) of bonding agent (7), syringe needle (2,4) is sandwiched in cover glass (5) and carries glass (6) two ends so that bonding agent (7) is sticking securely, syringe needle (2,4) respectively by approaching channel (3) with truly preserve sliver (1) and communicate.
2, the manufacturing technology of true reservoir rock micro pore model is characterized in that:
A, the sliver (1) for the treatment of injection body behind the washing oil is put into test tube, and 5 * 10
-2Under the vacuum tightness of torr, to going into, and sliver is reached capacity the solubility organic hyaline monomer solution for preparing, and then take out sliver (1) and under 80-85 ℃ of condition, toasted 3 hours;
B, will have the sliver (1) that carries glass (6) and the good upper surface of grinding and polishing, and immerse in the chloroform and soak a moment (3-5 minute).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93105170A CN1035496C (en) | 1993-04-29 | 1993-04-29 | Micro-pore model of true reservior rock and making technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93105170A CN1035496C (en) | 1993-04-29 | 1993-04-29 | Micro-pore model of true reservior rock and making technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1101148A CN1101148A (en) | 1995-04-05 |
| CN1035496C true CN1035496C (en) | 1997-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93105170A Expired - Fee Related CN1035496C (en) | 1993-04-29 | 1993-04-29 | Micro-pore model of true reservior rock and making technology thereof |
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| Country | Link |
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| CN (1) | CN1035496C (en) |
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| CN1304830C (en) * | 2005-03-30 | 2007-03-14 | 大庆石油学院 | Process for making quartz sand epoxy resin cementitious non-homogeneous model |
| CN101105120B (en) * | 2007-04-20 | 2010-12-22 | 大庆石油学院 | Three-dimensional glass porous media model for microcosmic oil drive and manufacturing method thereof |
| CN101964156B (en) * | 2010-10-31 | 2012-01-18 | 大庆油田有限责任公司 | Long-term preservation method for well core |
| CN102768812B (en) * | 2011-05-06 | 2015-02-11 | 中国科学院理化技术研究所 | Visualized microscopic model of real core and manufacturing method of visualized microscopic model of real core |
| CN103485762B (en) * | 2012-06-08 | 2017-02-01 | 中国石油化工股份有限公司 | Visual simulation shale micro-crack plugging capacity test system and method |
| CN103778841B (en) * | 2012-10-26 | 2016-01-06 | 中国石油化工股份有限公司 | True core microvisual model method for making |
| CN103471883B (en) * | 2013-08-20 | 2015-10-14 | 中国石油天然气股份有限公司 | The manufacture method of petrographic thin section in a kind of visual real core model |
| CN103471881B (en) * | 2013-08-20 | 2015-07-08 | 中国石油天然气股份有限公司 | Manufacturing method for visual full-closed real core model and core model |
| CN103939093A (en) * | 2014-05-06 | 2014-07-23 | 西安石油大学 | Visual physical simulation device under condition of complex hydrocarbon reservoir real core well network |
| CN105212991A (en) * | 2014-06-11 | 2016-01-06 | 刘承勇 | A kind of single use ceramic scalpel and preparation method thereof |
| CN105545263B (en) * | 2015-12-08 | 2017-04-12 | 东北石油大学 | Visual sand blasting model used for oil displacement experiment and manufacturing method thereof |
| CN111537298B (en) * | 2020-04-23 | 2023-07-25 | 武汉市新生纪科技有限公司 | Rock slice assembly capable of bearing high-temperature high-pressure fluid and preparation method |
| CN112161907B (en) * | 2020-09-23 | 2021-06-04 | 武汉大学 | Surface wettability variable micro-pore model and manufacturing and using method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2988827A (en) * | 1959-06-03 | 1961-06-20 | Sinclair Oil & Gas Company | Vacuum framing apparatus |
| US3751827A (en) * | 1971-06-08 | 1973-08-14 | T Gaskin | Earth science teaching device |
-
1993
- 1993-04-29 CN CN93105170A patent/CN1035496C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2988827A (en) * | 1959-06-03 | 1961-06-20 | Sinclair Oil & Gas Company | Vacuum framing apparatus |
| US3751827A (en) * | 1971-06-08 | 1973-08-14 | T Gaskin | Earth science teaching device |
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| Publication number | Publication date |
|---|---|
| CN1101148A (en) | 1995-04-05 |
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