CN204827440U - Simulation crack oil reservoir gel particle evaluation experimental apparatus - Google Patents
Simulation crack oil reservoir gel particle evaluation experimental apparatus Download PDFInfo
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- CN204827440U CN204827440U CN201520565930.1U CN201520565930U CN204827440U CN 204827440 U CN204827440 U CN 204827440U CN 201520565930 U CN201520565930 U CN 201520565930U CN 204827440 U CN204827440 U CN 204827440U
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Abstract
The utility model discloses a simulation crack oil reservoir gel particle evaluation experimental apparatus, including last glass board, lower glass board, stainless steel gasket, feed liquor pipe, drain pipe, sampler barrel and a plurality of fixation clamp, go up the glass board, down glass board and stainless steel gasket the stack structure last glass board and down the center part between the glass board form the simulation inner chamber, adopt the stainless steel gasket of adjusting different thickness to simulate different fracture width to glue and the fixed formation of fixation clamp double sealing through glass, this simulation crack oil reservoir gel particle evaluation experimental apparatus assembly and disassembly is simple, and repeatability is transparent visual, but in situ observation and transfer the migration characteristic of driving the agent with camera equipment record gel particle for research gel particle particle diameter and fissured size relation provide the theoretical direction for the site operation.
Description
Technical field
The utility model relates to oil-gas field development experimental assembly technical field, particularly a kind of simulation fracture oil reservoir gel particle evaluation experimental device.
Background technology
Adopt the fractured reservoir of waterflooding extraction, because injection water often just follows crack alter row, make producing well premature water breakthrough, moisture content increases sharply, and more serious just there will be waterflood situation; On the other hand, because the mobility of the mobility ratio crude oil of water is large many, so the swept volume injecting water is less, and a large amount of remaining oil producing degree of matrix system are very little, and oil displacement efficiency is lower.If water filling continuously, the inefficient cycle injecting water will be caused, increase cost of winning.
In order to improve fractured reservoir water drive oil recovery factor, conventional gel particle profile control agent shutoff crack and height ooze predominant pathway.Lab simulation evaluation experimental is preferred gel particle profile control agent and optimizes the effective means of injection parameter, and still lacking at present can the stratigraphic model of Reality simulation fractured reservoir.The API diversion chamber that foreign literature SPE106272 introduces is the experimental facilities evaluating flow conductivity for proppant laid in fracturing fracture, in experimentation, centre is added with two rock core plates of proppant to putting, then core holding unit is put into, carry out flow conductivity test, but this device cannot carry out the flowing test of profile control agent in crack and the flow regime of observation profile control agent.CN204186382U discloses a kind of fill out sand tube fracture simulation unit adopting bead and quartz sand to make, and this device remains a kind of homogeneous fractured model of single hole, and can not the flow regime of real-time monitored profile control agent.Therefore, need to provide a kind of simple, visual, simulation fracture oil reservoir gel particle evaluation experimental device that fracture parameters is adjustable.
Utility model content
It is simple that the purpose of this utility model is to provide a kind of mounting or dismounting, reusable, can lose by double leak-proof, fracture parameters is adjustable, transparent visual, the migration state of real-time monitored gel particle in crack and migration rule, and the simulation fracture oil reservoir gel particle evaluation experimental device that can be used in the matching relationship evaluating gel particle particle diameter and flaw size.
To achieve these goals, technical solutions of the utility model are as follows:
A kind of simulation fracture oil reservoir gel particle evaluation experimental device, comprise upper glass plates, lower glass plate, stainless steel gasket, feed tube, drain pipe, sampling tube and multiple geometrical clamp, described stainless steel gasket is that a length and width are slightly less than the length of described lower glass plate and width and center is formed with the square sheet of through hole, described upper glass plates, stainless steel gasket and described lower glass plate are arranged from top to bottom and described upper glass plates and described lower glass plate are fixedly clamped by multiple geometrical clamp, described upper glass plates is formed feed liquor boring and fluid boring respectively, described feed liquor boring and fluid boring are threaded connection with described feed tube and described drain pipe respectively, the other end of described drain pipe is connected to described sampling tube, the pipeline of described feed tube and drain pipe is respectively arranged with the first valve and the second valve, described feed liquor 9 between described feed liquor boring and described first valve is provided with pressure 1.
Described geometrical clamp is G type folder, and described G type folder is uniformly distributed along the edge of described upper glass plates and described lower-glass 5, and described upper glass plates and described lower glass plate are fixedly clamped.
The soffit local dent of described upper glass plates and the upper surface local dent of described lower glass plate form seal groove, and described seal groove is arranged in described stainless steel gasket through hole, in described seal groove, be provided with described sealing ring.
A circle glass glue-line is also coated with along the joint of described sealing ring inwall and described lower glass plate inside described sealing ring.
Particularly, the through hole of described stainless steel gasket is a square through hole, the length of described square through hole and width are slightly less than the external diameter of described stainless steel gasket, and when described upper glass plates, stainless steel gasket and lower glass plate are superimposed from top to bottom, centre is formed with a cavity; The square through hole of described seal groove and described sealing ring and described stainless steel gasket is preferably inwall and fits and arrange, and form the glass glue-line with sealing function by applying one deck glass cement at sealing ring and lower glass plate joint, reach the effect with sealing ring double-layer seal.
Preferably, the thickness of described stainless steel gasket is selected the stainless steel gasket of different-thickness according to the crack width of simulation and is formed simulation inner chamber in the centre between upper glass plates and lower glass plate, for simulating the crack of different in width.
Preferably, described upper glass plates and lower glass plate adopt transparent plexiglass plate, transparent visual.
The beneficial effect of the utility model compared with conventional art, this simulation fracture oil reservoir gel particle evaluation experimental device adopts sealing ring and glass cement double seal, and voltage endurance capability is strong; Adopt the stainless steel gasket adjustment crack width of different-thickness, fracture parameters is adjustable; This experimental facilities G type is clamping fixed, has assembly and disassembly simple, and repeatable strong, reasonable in design, input cost is low, reliable working performance and simulate effect is good; Agent structure adopts poly (methyl methacrylate) plate, transparent visual, can Real Time Observation and the transport characteristics with camera head record gel particle profile control agent, for the matching relationship of the migration rule and gel particle particle diameter and flaw size of studying gel particle profile control agent, for site operation provides theoretical direction.
Accompanying drawing explanation
Fig. 1 is a kind of simulation fracture oil reservoir gel particle evaluation experimental device plane structure schematic diagram;
Fig. 2 is a kind of simulation fracture oil reservoir gel particle evaluation experimental device cross-sectional view;
Fig. 3 is a kind of simulation fracture oil reservoir gel particle evaluation experimental device side structure schematic diagram;
Fig. 4 is the change curve of injection pressure with injected slurry volume of 120 ~ 140 order particles in crack.
In figure: 1-pressure meter; 2-G type presss from both sides; 301-first valve; 302-second valve; 4-upper glass plates; 5-lower glass plate; 6-stainless steel gasket; 7-seal groove; 8-glass cement; 9-feed liquor pipeline; 10-drain pipe; 11-mould impression; 12-sealing ring; 13-import is holed; 14-exit bore; 15-sample bucket.
Detailed description of the invention
Below in conjunction with detailed description of the invention, above-mentioned utility model content of the present utility model is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the utility model is only limitted to following embodiment.Not departing from the above-mentioned technological thought situation of the utility model, according to ordinary skill knowledge and customary means, making various replacement and change, all should be included in scope of the present utility model.
As shown in Figures 1 to 3, this simulation fracture oil reservoir gel particle evaluation experimental device, comprise upper glass plates 4, lower glass plate 5, stainless steel gasket 6, feed tube 9, drain pipe 10, sampling tube 15 and multiple geometrical clamp, described stainless steel gasket 6 is that a length and width are slightly less than the length of described lower glass plate 5 and width and center is formed with the square sheet of through hole, described upper glass plates 4, stainless steel gasket 6 and described lower glass plate 5 are arranged from top to bottom and described upper glass plates 4 and described lower glass plate 5 are fixedly clamped by multiple geometrical clamp folder 2, described upper glass plates 4 is formed feed liquor boring 13 and fluid boring 14 respectively, described feed liquor boring 13 and fluid boring 14 are threaded connection with described feed tube 9 and described drain pipe 10 respectively, the other end of described drain pipe 10 is connected to described sampling tube 15, the pipeline of described feed tube 9 and drain pipe 10 is respectively arranged with the first valve and the second valve, described feed tube 9 between described feed liquor boring 13 and described first valve is provided with pressure meter 1.
Described geometrical clamp 2 is G type folder, and described G type folder is uniformly distributed along the edge of described upper glass plates 4 and described lower glass plate 5, described upper glass plates 4 and described lower glass plate 5 is fixedly clamped, makes wherein to be formed centrally a cavity, i.e. mould impression 11.
The soffit local dent of described upper glass plates 4 and the upper surface local dent of described lower glass plate 5 are formed with the seal groove 7 be arranged in described stainless steel gasket 6 through hole, in described seal groove 7, be provided with sealing ring 12.
A circle glass glue-line 8 is also coated with along the joint of described sealing ring 12 inwall and described lower glass plate 5 inside described sealing ring 12.
Concrete, lower glass plate 5 is kept flat, the stainless steel gasket 6 of appropriate size is selected to be placed on the edge of lower glass plate 5, for simulating the crack of different in width, by in sealing ring 12 indentation sealing ring recess 7, the adjacent regions of the seal groove in lower glass plate 5 applies a circle glass cement 8 equably, seals by sealing ring 12 and glass cement 8 effect obtaining double seal.Screwed pipeline precession boring 13 is formed feed liquor pipeline 9, and on feed liquor pipeline 9 Bonding pressure table 1 and the first valve, be used for monitoring the pressure in gel particle profile control agent injection process and Flow-rate adjustment, the exit bore 14 of screwed for another root pipeline precession upper glass plates 4 is formed outlet line 10, and outlet line outside is connected to sample bucket 15.Then be placed in lower glass plate 5 by upper glass plates 4 alignment, upper glass plates 4, stainless steel gasket 6 and lower glass plate 5 are clamped with multiple equally distributed G type folder 2, so far fractured model completes substantially.Fractured model is placed at normal temperatures after glass cement 8 solidifies completely, within 24 hours, namely can be used as simulation fracture oil reservoir gel particle evaluation experimental device.
This experimental facilities, experimentally required crack width selects the stainless steel gasket 6 of different-thickness, is used for simulating different crack widths.Fractured model is vacuumized 4 hours, saturation experiments water, gel particle profile control agent is injected into mould impression 11 from feed tube 9, migrate in gel particle profile control agent mould impression 11, now inlet pressure gauge 1 will produce pressure instruction, change injection rate and can record injection pressure over time, obtain the migration rule of profile control agent in crack, simultaneously observable transport characteristics.Change crack width, the matching relationship of gel particle particle diameter and flaw size can be obtained.
Embodiment 1:
Employing thickness is that the stainless steel gasket 6 of 0.1mm simulates the wide fractured model for 0.1mm of seam, the migration rule of research 170 ~ 200 object pre-crosslinked gel particles in intrinsic fracture model.
(1) fractured model is vacuumized 4 hours, saturation experiments water, is injected into mould impression 11 by gel particle profile control agent from feed tube 9, migrates in gel particle profile control agent mould impression 11;
(2) 170 ~ 200 object pre-crosslinked gel particles are suspended in the 5000mg/LNaCl aqueous solution respectively, the pre-crosslinked gel particle dispersion of preparation certain mass concentration, by magnetic stirrer 2 hours, make its abundant water absorption and swelling in water.
(3) be injected in the wide intrinsic fracture model for 0.1mm of seam under the injection rate of 1mL/min, 3mL/min, 5mL/min, 7mL/min, 10mL/min, 15mL/min and 20mL/min, next injection rate is changed after the registration of pressure meter 1 is stable, record the steady pressure value under each injection rate, the research injection pressure of particle and resistance coefficient are with the Changing Pattern of injection rate, and experimental result as shown in appendix 1.
Table 1: the injection pressure of gel particle and resistance coefficient fitting result table
By injection pressure and the resistance coefficient fitting result table 1 of gel particle, can find out: the migration rule compound power law method of gel particle in crack, illustrate that gel particle has in crack and inject preferably and transfer ability.
Embodiment 2:
The stainless steel gasket 6 simulation fracture width adopting thickness to be respectively 0.1mm, 0.2mm and 0.3mm is respectively three kinds of fractured models of 0.1mm, 0.2mm and 0.3mm, the matching relationship of research 120 ~ 140 object gel particles and fractured model size.
(1) 120-140 object pre-crosslinked gel particle is suspended in the 5000mg/LNaCl aqueous solution, the pre-crosslinked gel particle dispersion of preparation certain mass concentration, by magnetic stirrer 2 hours, makes its abundant water absorption and swelling in water;
(2) Simulated Water is injected in model, the voids volume of rating model and permeability;
(3) in model, gel particle dispersion is injected with the speed of 3mL/min, the injection pressure at record different time interval;
(4) phenomenon in injection process in the change of outlet flow fluid and model is observed, till pressure stability;
(5) according to the migration phenomenon of gel particle in injection process in crack, the change importing and exporting pre-crosslinked gel particle particle diameter and pressure change, the matching relationship of pre-crosslinked gel particle and flaw size is set up.
In crack 120 ~ 140 order particles injection pressure with injected slurry volume change curve Fig. 4 shown in.As can be seen from curve map: 120 ~ 140 object gel particles are that in the crack of 0.3mm, injection pressure exponentially rises with injected slurry volume at width, illustrate that gel particle is can not effectively migrate in the crack of 0.3mm at width in fractured model import formation accumulation; Be that in the crack of 0.2mm and 0.1mm, injection pressure is wave change with injected slurry volume at width, illustrate that gel particle is to adopt deformation pattern effectively to migrate in crack in the crack of 0.2mm and 0.1mm at width.
In sum, this this simulation fracture oil reservoir gel particle evaluation experimental device can Real Time Observation and the transport characteristics with camera head record gel particle profile control agent, for the matching relationship of the migration rule and gel particle particle diameter and flaw size of studying gel particle profile control agent, for site operation provides theoretical direction.
Claims (6)
1. a simulation fracture oil reservoir gel particle evaluation experimental device, it is characterized in that, comprise upper glass plates (4), lower glass plate (5), stainless steel gasket (6), feed tube (9), drain pipe (10), sampling tube (15) and multiple geometrical clamp (2), described stainless steel gasket (6) is that a length and width are slightly less than the length of described lower glass plate (5) and width and center is formed with the square plate of through hole, described upper glass plates (4), stainless steel gasket (6) and described lower glass plate (5) are superposed from top to bottom and arrange and described upper glass plates (4) and described lower glass plate (5) be fixedly clamped by multiple geometrical clamp (2), described upper glass plates (4) is processed with feed liquor boring (13) and fluid boring (14) respectively, described feed liquor boring (13) and fluid boring (14) are threaded connection with described feed tube (9) and described drain pipe (10) respectively, the other end of described drain pipe (10) is connected to described sampling tube (15), the pipeline of described feed tube (9) and described drain pipe (10) is respectively arranged with the first valve (301) and the second valve (302), at the liquid feeding end place near the described feed tube (9) be connected with feed-containing vessel, pressure meter (1) is installed.
2. simulation fracture oil reservoir gel particle evaluation experimental device according to claim 1, it is characterized in that, described geometrical clamp (2) is G type folder, described G type folder is uniformly distributed along the edge of described upper glass plates (4) and described lower glass plate (5), and described upper glass plates (4) and described lower glass plate (5) are fixedly clamped.
3. simulation fracture oil reservoir gel particle evaluation experimental device according to claim 1, it is characterized in that, the soffit local dent of described upper glass plates (4) and the upper surface local dent of described lower glass plate (5) form seal groove (7), described seal groove (7) is arranged in described stainless steel gasket (6) through hole, is provided with described sealing ring (12) in described seal groove (7).
4. simulation fracture oil reservoir gel particle evaluation experimental device according to claim 3, it is characterized in that, the joint in described sealing ring (12) inner side along described sealing ring (12) inwall and described lower glass plate (5) is also coated with a circle glass glue-line (8).
5. simulation fracture oil reservoir gel particle evaluation experimental device according to claim 1, it is characterized in that, the stainless steel gasket of the thickness of described stainless steel gasket (6) is consistent with the width in crack to be simulated.
6. simulation fracture oil reservoir gel particle evaluation experimental device according to claim 1, is characterized in that, described upper glass plates (4) and lower glass plate (5) adopt transparent plexiglass plate.
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| CN201520565930.1U CN204827440U (en) | 2015-07-29 | 2015-07-29 | Simulation crack oil reservoir gel particle evaluation experimental apparatus |
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| CN107748124A (en) * | 2017-02-27 | 2018-03-02 | 西南石油大学 | A kind of method for establishing dispersion agent grain diameter and pore size of rock matching relationship |
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| CN105606775A (en) * | 2016-02-29 | 2016-05-25 | 中国石油天然气股份有限公司 | Novel crack simulation and evaluation experiment method |
| CN107748124A (en) * | 2017-02-27 | 2018-03-02 | 西南石油大学 | A kind of method for establishing dispersion agent grain diameter and pore size of rock matching relationship |
| CN108301824A (en) * | 2018-01-20 | 2018-07-20 | 西南石油大学 | It is a set of can multipoint observation heating water bath microcosmic oil drive device |
| CN108533211B (en) * | 2018-05-10 | 2023-08-18 | 中国石油集团川庆钻探工程有限公司 | Complex stratum leakage channel simulation device |
| CN108533211A (en) * | 2018-05-10 | 2018-09-14 | 中国石油集团川庆钻探工程有限公司 | A kind of bad ground leakage channel simulator |
| CN108505964A (en) * | 2018-06-12 | 2018-09-07 | 西南石油大学 | A kind of high pressure dynamic leak stopping evaluation experimental provision and method |
| CN108505964B (en) * | 2018-06-12 | 2024-02-23 | 兰州城市学院 | High-pressure dynamic plugging evaluation experimental device and method |
| CN109444390A (en) * | 2018-12-18 | 2019-03-08 | 北京科技大学 | The measurement method of super absorbent resin reflation rate in simulation fracture |
| CN112627787A (en) * | 2019-10-08 | 2021-04-09 | 中国石油天然气股份有限公司 | Sand filling pipe device, filling method and water drive experiment method |
| CN112213253A (en) * | 2020-09-17 | 2021-01-12 | 中国石油天然气股份有限公司 | High-temperature high-pressure multilayer single-particle aging device and method for polymerization proppant |
| CN112213253B (en) * | 2020-09-17 | 2023-06-23 | 中国石油天然气股份有限公司 | High-temperature high-pressure multilayer single-particle aging device and method for polymeric propping agent |
| CN112415175B (en) * | 2020-12-15 | 2023-01-06 | 中国路桥工程有限责任公司 | Physical model test device for ground fissure |
| CN112415175A (en) * | 2020-12-15 | 2021-02-26 | 中国路桥工程有限责任公司 | Physical model test device for ground fissure |
| CN115929287A (en) * | 2022-10-13 | 2023-04-07 | 西南石油大学 | Crack plugging layer pressure-bearing dispersing capacity measuring device |
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