CN104514554A - Reservoir simulator - Google Patents
Reservoir simulator Download PDFInfo
- Publication number
- CN104514554A CN104514554A CN201310462944.6A CN201310462944A CN104514554A CN 104514554 A CN104514554 A CN 104514554A CN 201310462944 A CN201310462944 A CN 201310462944A CN 104514554 A CN104514554 A CN 104514554A
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- CN
- China
- Prior art keywords
- simulating device
- reservoir
- electric pulse
- flat cover
- reservoir simulating
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- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The invention discloses a reservoir simulator which comprises a flat cover, an experiment cavity, a cement framework, a measuring assembly, a rock sample and an electric pulse generator. The flat cover is correspondingly arranged at the top end of the experiment cavity and is used for sealing the experiment cavity. The cement framework is arranged in the experiment cavity, and a vertical hole and a measuring channel are formed in the cement framework respectively. The vertical hole is used for placing the electric pulse generator. The measuring channel penetrates through the cement framework and is communicated with the vertical hole. The measuring assembly and the rock sample are arranged in the measuring channel. The reservoir simulator provides a reservoir simulation experimental environment for electric pulse experiments through the experiment cavity and the cement framework, the electric pulse generator continuously impacts the rock sample in the simulated geographical condition, the measuring assembly measures needed data in due time, thus experiment data can be more accurate and give theoretical support to practical shock wave operation, rocks in the reservoir can be removed quickly and conveniently, and a lot of manpower and time can be saved.
Description
Technical field
The present invention relates to petroleum production art, particularly a kind of reservoir simulating device.
Background technology
In oil exploitation, because reservoir blocking causes water injection well to note not enter, notes not, the problem that oil well output is declined happens occasionally, and has a strong impact on the production in oil field.For the problem of reservoir blocking, current employing electric pulse shock wave reservoir, before carrying out actual job, first by experiment, practical operation is carried out as reference using testing the data obtained, with shock wave pressure realize tear, de-plugging reservoir improve recovery ratio be one of the most effective most economical means, shock wave operation reservoir can play de-plugging effect to reservoir.
Prior art, due in experimentation, lack experimental facilities, cannot the geographical environment of accurate simulation actual reservoir, make from experiment that the shock wave parameter that obtains can't be accurately corresponding in the situation of shock wave operation reservoir with practical application, and experimental data can not provide accurate reference in practical operation, shock wave cannot be determined at the coverage of various reservoir, need operation repeatedly to eliminate blocking layer.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Prior art lacks experimental facilities in an experiment, cannot the environment of accurate simulation actual reservoir, make from experiment, obtain shock wave parameter and effectively can not provide Data support to the operation of real impact ripple, thus cause electric pulse accurately can not eliminate rock in reservoir, and because electric pulse can not accurately disappear stifled, making note not enter water problem cannot quick solution, needs could remove blocking layer by a large amount of repetition operations, cause workload to strengthen, consume manpower and materials.
Summary of the invention
Lacking experimental facilities to simulate the problem of reservoir environment to solve in prior art, embodiments providing a kind of reservoir simulating device.Described technical scheme is as follows:
A kind of reservoir simulating device, described reservoir simulating device comprises: flat cover, experiment chamber, cement skeleton, measurement components, rock sample and electric pulse generator, described flat cover correspondence is arranged on top, described experiment chamber, described flat cover is for sealing described experiment chamber, described cement skeleton is arranged in described experiment chamber, described cement skeleton is respectively arranged with vertical holes and Measurement channel, described vertical holes is for placing described electric pulse generator, described Measurement channel runs through described cement skeleton, described Measurement channel is communicated with described vertical holes, described measurement components and described rock sample are arranged in described Measurement channel.
As preferably, described reservoir simulating device also comprises sleeve pipe, and described sleeve pipe is arranged in the vertical holes of described cement skeleton, and described electric pulse generator is arranged in described sleeve pipe, and described sleeve pipe is used for fixing described electric pulse generator.
As preferably, described reservoir simulating device also comprises two perspective flat covers, and two described perspective flat covers are separately positioned on the two ends of described Measurement channel, and described perspective flat cover is for sealing described Measurement channel.
Further, described reservoir simulating device also comprises water nozzle, and described water nozzle is arranged on described perspective flat cover, and by described water nozzle to injecting fluid in described experiment chamber, described liquid provides hyperbaric environment for described experiment chamber.
As preferably, described reservoir simulating device also comprises measured hole, and described measured hole is arranged on described in any one to be had an X-rayed on flat cover, and described measured hole axially runs through described perspective flat cover, is observed the state of described rock sample by described measured hole.
Further, described reservoir simulating device also comprises suspension ring, and described suspension ring are arranged on described flat cover, and described suspension ring are used for carrying out lifting carrying to described experiment chamber.
As preferably, described reservoir simulating device also comprises bipyramid ring, and described bipyramid ring is arranged between described flat cover and described experiment chamber, and described bipyramid ring is for sealing described experiment chamber.
Further, described reservoir simulating device also comprises through hole and hermetically-sealed construction, and described through hole is arranged on described flat cover, and described through hole is used for providing passage to the cable of described electric pulse generator, described hermetically-sealed construction is arranged in described through hole, and described hermetically-sealed construction is for sealing described through hole.
As preferably, described hermetically-sealed construction comprises compression top cover, wedge shape sealing ring, pressure ring and seal bond, it is inner that described compression top cover, described wedge shape sealing ring, described pressure ring and described seal bond are arranged on described through hole from top to bottom in turn, and described seal bond is positioned at described through hole lower end.
Further, described measurement components comprises impact wave measurement probe and core strain measurement probe, described core strain measurement probe is pressed close to described rock sample and is placed, described core strain measurement probe is for measuring core strain size, and described impact wave measurement probe is for measuring the shock wave numerical value that described electric pulse generator sends.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
The embodiment of the present invention by experiment chamber and cement skeleton provides the experimental situation of a simulation reservoir to electric pulse experiment, electric pulse generator simulation geographical environment under to rock sample constant impingement, detected shock wave numerical value and the rock sample state of electric pulse generator by measurement components in good time, the present invention can make experimental data more accurate, the shock wave parameter obtained can effective corresponding actual reservoir situation, the theories integration of real impact ripple operation can be given, make to eliminate reservoir rock more rapidly quick, save a large amount of manpower and time.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the reservoir simulating device structural representation that the embodiment of the present invention provides;
Fig. 2 is the perspective flat cover structural representation that further embodiment of this invention provides;
Fig. 3 is the partial enlarged drawing at the A place of Fig. 1 that further embodiment of this invention provides.
Wherein: 1 Measurement channel,
2 perspective flat covers,
3 lens seals collars,
4 experiment chambeies,
5 bipyramid rings,
6 flat covers,
7 through holes,
8 compress top cover,
9 pressure rings,
10 wedge shape sealing rings,
11 seal bonds,
12 suspension ring,
13 cement skeletons,
14 measured holes,
15 sleeve pipes,
16 sintering sealing-plugs,
17 water nozzles.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Figure 1, a kind of reservoir simulating device that the embodiment of the present invention provides, described reservoir simulating device comprises: flat cover 6, experiment chamber 4, cement skeleton 13, measurement components, rock sample and electric pulse generator, described flat cover 6 correspondence is arranged on top, described experiment chamber 4, described flat cover 6 is for sealing described experiment chamber 4, described cement skeleton 13 is arranged in described experiment chamber 4, described cement skeleton 13 is respectively arranged with vertical holes and Measurement channel 1, described vertical holes is for placing described electric pulse generator, described Measurement channel 1 runs through described cement skeleton 13, described Measurement channel 1 is communicated with described vertical holes, described measurement components and described rock sample are arranged in described Measurement channel 1.
Wherein, flat cover 6 is arranged on experiment upper end, chamber 4, flat cover 6 is for sealing experiment chamber 4, experiment chamber 4 provides an airtight experimental situation to experiment, cement skeleton 13 is placed in experiment chamber 4, cement skeleton 13 can simulate actual formation structure, Measurement channel 1 in cement skeleton 13 is for placing rock sample and measurement components, during experiment, cement skeleton 13 is put into experiment chamber 4, the rock sample of reservoir collection and measurement components are put into Measurement channel 1, again electric pulse generator is put into cement skeleton 13, sealing experiment chamber 4, opening power, electric pulse generator impacts rock sample, measurement components measures desired data, after having tested, by process image data, draw parameter and the operations number of the shock wave of electric pulse generator.
The embodiment of the present invention by experiment chamber 4 and cement skeleton 13 provides the experimental situation of a simulation reservoir to electric pulse experiment, electric pulse generator is being simulated under geographical environment to rock sample constant impingement, detected shock wave numerical value and the rock sample state of electric pulse generator by measurement components in good time, the present invention can make experimental data more accurate, the shock wave parameter obtained can effective corresponding actual reservoir situation, the theories integration of real impact ripple operation can be given, make to eliminate reservoir rock more rapidly quick, save a large amount of manpower and time.
As preferably, described reservoir simulating device also comprises sleeve pipe 15, and described sleeve pipe 15 is arranged in the vertical holes of described cement skeleton 13, and described electric pulse generator is arranged in described sleeve pipe 15, and described sleeve pipe 15 is for fixing described electric pulse generator.Wherein, in order to reinforce, can inject cementing concrete between sleeve pipe 15 and cement skeleton 13, described sleeve pipe 15 is for placing and fixing described electric pulse generator.
As preferably, described reservoir simulating device also comprises two perspective flat covers 2, two described perspective flat covers 2 are coaxially arranged on the lateral wall of described experiment chamber 4 with described Measurement channel 1, and two described perspective flat covers 2 are symmetrical arranged by described cement skeleton 13, wherein, perspective flat cover 2 is connected on experiment chamber 4 by mechanical connection manner, and have an X-rayed on flat cover 2 and be provided with sintering sealing-plug 16(with reference to Fig. 2), probe signal lead-in wire in measurement components can through sintering sealing-plug 16, connect external record display device, sintering sealing-plug 16 can play sealing function.Those skilled in the art are known, for ensureing the sealing effectiveness in experiment chamber 4, can arrange lens seals collar 3 between perspective flat cover 2 and experiment chamber 4.
As shown in Figure 2, further, described reservoir simulating device also comprises water nozzle 17, described water nozzle 17 is axially arranged along described perspective flat cover 2, described water nozzle 17 for injecting highly pressurised liquid in described experiment chamber 4, simulate the condition of high voltage of actual rock stratum, the maximum pressure that wherein water nozzle 17 is injected can reach 30MPa.
As preferably, described reservoir simulating device also comprises measured hole 14, described measured hole 14 is arranged on described in any one to be had an X-rayed on flat cover 2, described measured hole 14 axially runs through described perspective flat cover 2, when reservoir simulating device runs, technician observes the concrete state of rock sample in experiment chamber 4 by measured hole 14, when rock sample is smashed by electric pulse generator, can quit work.
Further, described reservoir simulating device also comprises suspension ring 12, and described suspension ring 12 are arranged on described flat cover 6, and described suspension ring 12 are for carrying out lifting carrying to described experiment chamber 4.
As preferably, described reservoir simulating device also comprises bipyramid ring 5, and described bipyramid ring 5 is arranged between described flat cover 6 and described experiment chamber 4, and described bipyramid ring 5 is for sealing described experiment chamber 4.From those skilled in the art, also by arranging sealing ring or other sealing devices seal between flat cover 6 and experiment chamber 4.
Further, described reservoir simulating device also comprises through hole 7 and sealing device, described through hole 7 is axially arranged along described flat cover 6, described through hole 7 is for providing passage to the cable of described electric pulse generator, described hermetically-sealed construction is arranged in described through hole 7, and described hermetically-sealed construction is for sealing described through hole 7.
As shown in Figure 3, as preferably, hermetically-sealed construction comprises compression top cover 8, pressure ring 9, wedge shape sealing ring 10 and seal bond 11, seal bond 11 is arranged on flat cover through hole 7 lower end, seal bond 11 upper end is inserted in pressure ring 9 and wedge shape sealing ring 10 successively, compress top cover 8 and be threaded onto flat cover through hole 7 upper end, the cable of electric pulse generator is connected to GCU through the cable passage compressed on top cover 8, seal bond 11.
Further, described measurement components comprises impact wave measurement probe and core strain measurement probe, and described core strain measurement probe is pressed close to described rock sample and placed.Impact wave measurement probe sends the numerical value of shock wave for detecting and record electric pulse generator, core strain measurement probe is for detecting the stressing conditions of core, can draw when shock wave reaches how much numerical value by measurement components, core can break, and carry out subsequent treatment according to this numerical value, draw the numerical value that in actual mechanical process, electric pulse generator should use.
Embodiment two
The use step of reservoir simulating device:
Flat cover 6 is opened by the first step, is placed into by electric pulse generator in sleeve pipe 15, and the discharge position of electric pulse generator aims at measured hole 14; The cable of electric pulse generator is through the cable passage on seal bond 11 and compression top cover 8.
The perspective flat cover 2 of both sides is laid down by second step, impact wave measurement probe, experiment core, strain measurement probe are positioned in Measurement channel 1 successively, the probe signal lead-in wire of both sides is each passed through sintering sealing-plug 16 and is connected on record display device, is connected to outside experiment chamber 4 by perspective flat cover 2 by stud and nut.
Bipyramid ring 5 is placed in the cone tank of flat cover 6 by the 3rd step; Seal bond 11 is arranged on flat cover through hole 7 lower end, seal bond 11 upper end is inserted in wedge shape sealing ring 10 and pressure ring 9 successively, compress top cover 8 and be threaded onto flat cover through hole 7 upper end, the cable of electric pulse generator is connected to GCU through seal bond 11 and the cable passage compressed on top cover 8, flat cover 6 is connected to experiment top, chamber 4 by stud and nut, flat cover 6 top screw thread installs suspension ring 12, for carrying out lifting carrying to device
Booster pump is connected the water nozzle 17 on perspective flat cover 2 by the 4th step by high-pressure water pipeline, open booster pump, inject highly pressurised liquid, simulate the condition of high voltage of actual rock stratum by water nozzle 17 in experiment chamber 4.
5th step opens GCU, the operation of electric pulse shock wave is carried out to experimental rock sample, popped one's head in by impact wave measurement and core strain measurement probe observes the change of shock wave and rock sample, record experimental data, as found, rock sample breaks, and stops experiment.
6th step takes out the rock sample after experiment, carries out permeability detection, sonic detection, CT scan detection to it, and contrast many groups measurement result analyzes the operation effectiveness of shock wave when different work number of times to reservoir of this parameter.
Beneficial effect of the present invention is, under utilizing the present invention can obtain various shock wave parameter effect, the relation of tearing reservoir threshold value and shock wave parameter and operations number, the distance of tearing reservoir and shock wave parameter and act on the relation of number of times and reservoir permeability, increase rate and shock wave parameter and act on the relation of number of times, draw the operation effectiveness of shock wave when different work number of times to reservoir, for electric pulse technique provides theories integration in the practical application in oil field.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a reservoir simulating device, it is characterized in that, described reservoir simulating device comprises: flat cover, experiment chamber, cement skeleton, measurement components, rock sample and electric pulse generator, described flat cover correspondence is arranged on top, described experiment chamber, described flat cover is for sealing described experiment chamber, described cement skeleton is arranged in described experiment chamber, described cement skeleton is respectively arranged with vertical holes and Measurement channel, described vertical holes is for placing described electric pulse generator, described Measurement channel runs through described cement skeleton, described Measurement channel is communicated with described vertical holes, described measurement components and described rock sample are arranged in described Measurement channel.
2. reservoir simulating device according to claim 1, it is characterized in that, described reservoir simulating device also comprises sleeve pipe, and described sleeve pipe is arranged in the vertical holes of described cement skeleton, described electric pulse generator is arranged in described sleeve pipe, and described sleeve pipe is used for fixing described electric pulse generator.
3. reservoir simulating device according to claim 1, is characterized in that, described reservoir simulating device also comprises two perspective flat covers, and two described perspective flat covers are separately positioned on the two ends of described Measurement channel, and described perspective flat cover is for sealing described Measurement channel.
4. reservoir simulating device according to claim 3, it is characterized in that, described reservoir simulating device also comprises water nozzle, and described water nozzle is arranged on described perspective flat cover, by described water nozzle to injecting fluid in described experiment chamber, described liquid provides hyperbaric environment for described experiment chamber.
5. reservoir simulating device according to claim 4, it is characterized in that, described reservoir simulating device also comprises measured hole, described measured hole is arranged on described in any one to be had an X-rayed on flat cover, described measured hole axially runs through described perspective flat cover, is observed the state of described rock sample by described measured hole.
6. reservoir simulating device according to claim 1, is characterized in that, described reservoir simulating device also comprises suspension ring, and described suspension ring are arranged on described flat cover, and described suspension ring are used for carrying out lifting carrying to described experiment chamber.
7. reservoir simulating device according to claim 6, is characterized in that, described reservoir simulating device also comprises bipyramid ring, and described bipyramid ring is arranged between described flat cover and described experiment chamber, and described bipyramid ring is for sealing described experiment chamber.
8. reservoir simulating device according to claim 7, it is characterized in that, described reservoir simulating device also comprises through hole and hermetically-sealed construction, described through hole is arranged on described flat cover, described through hole is used for providing passage to the cable of described electric pulse generator, described hermetically-sealed construction is arranged in described through hole, and described hermetically-sealed construction is for sealing described through hole.
9. reservoir simulating device according to claim 8, it is characterized in that, described hermetically-sealed construction comprises compression top cover, wedge shape sealing ring, pressure ring and seal bond, it is inner that described compression top cover, described wedge shape sealing ring, described pressure ring and described seal bond are arranged on described through hole from top to bottom in turn, and described seal bond is positioned at described through hole lower end.
10. reservoir simulating device according to claim 1, it is characterized in that, described measurement components comprises impact wave measurement probe and core strain measurement probe, described core strain measurement probe is pressed close to described rock sample and is placed, described core strain measurement probe is for measuring core strain size, and described impact wave measurement probe is for measuring the shock wave numerical value that described electric pulse generator sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462944.6A CN104514554B (en) | 2013-09-30 | 2013-09-30 | Reservoir simulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462944.6A CN104514554B (en) | 2013-09-30 | 2013-09-30 | Reservoir simulator |
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| CN104514554A true CN104514554A (en) | 2015-04-15 |
| CN104514554B CN104514554B (en) | 2017-05-10 |
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| CN201310462944.6A Active CN104514554B (en) | 2013-09-30 | 2013-09-30 | Reservoir simulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557219A (en) * | 2019-09-26 | 2021-03-26 | 中国海洋石油集团有限公司 | Object model sample cracking effect experimental device and method based on controllable shock wave technology |
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2013
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557219A (en) * | 2019-09-26 | 2021-03-26 | 中国海洋石油集团有限公司 | Object model sample cracking effect experimental device and method based on controllable shock wave technology |
| CN112557219B (en) * | 2019-09-26 | 2023-05-09 | 中国海洋石油集团有限公司 | Object model sample fracturing effect experimental device and experimental method based on controllable shock wave technology |
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| CN104514554B (en) | 2017-05-10 |
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