CN207114389U - A kind of spontaneous imbibition experiment device of rock core - Google Patents
A kind of spontaneous imbibition experiment device of rock core Download PDFInfo
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- CN207114389U CN207114389U CN201721074651.0U CN201721074651U CN207114389U CN 207114389 U CN207114389 U CN 207114389U CN 201721074651 U CN201721074651 U CN 201721074651U CN 207114389 U CN207114389 U CN 207114389U
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- imbibition
- rock core
- gauge line
- electronic balance
- test bottle
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Abstract
A kind of spontaneous imbibition experiment device of rock core, electronic balance is provided with experimental bench, electronic balance connects computer, gauge line and test bottle are provided with below experimental bench, fishing line connects electronic balance through gauge line one end, other end connection is placed on the rock core in test bottle, and the side exit of test bottle connects rubber hose, and the liquid level that tongs is used to fix in gauge line is provided with rubber hose；Imbibition solution is injected by gauge line, and liquid level is adjusted to the correct position of gauge line, then opens computer, turn-on data acquisition system；Progress over time, the oil that imbibition goes out will be floated at the top of the liquid level of gauge line, by how much reading oil mass that scale value can learns that imbibition goes out, data it can in addition contain be recorded by electronic balance calculate the number for the oil mass that imbibition goes out, the variation relation of imbibition recovery ratio over time can be calculated using both modes, and it can be verified mutually, add the accuracy of experiment.
Description
Technical field
The utility model belongs to oil-gas field development field, more particularly to a kind of spontaneous imbibition experiment device of rock core.
Background technology
As world's conventional gas and oil resource is gradually deficient, in order to meet the needs of people are to petroleum resources, unconventionaloil pool
Resource is increasingly becoming the focus of exploration and development, and many people are directed to studying the exploitation of unconventional petroleum resources.Spontaneous imbibition is recovered the oil
As a kind of development tool, it is widely used in the exploitation of compact reservoir, because the pore throat of compact reservoir is tiny, porosity is low, because
And capillary force effect is notable, this causes the more conventional reservoir of static imbibition phenomena compared to more obvious.So acted on using capillary force
Under static imbibition phenomena can effectively improve the yield of compact reservoir.Therefore, it is highly desirable to carry out indoor spontaneous imbibition reality
Test.
At present, the experimental provision for carrying out indoor spontaneous imbibition experiment mainly has two kinds, and a kind of device is can to measure imbibition
The oil mass gone out, its experimental provision are connected with capillary glass tube with a scale with the glass container equipped with rock core., will during experiment
Rock core is completely submerged in liquid, and the non-wetted phase made due to imbibition in rock core is come out by the wetting phase displacement in container, due to
The influence of density contrast, non-wetted phase will be converged in the tubule of container top, therefore, can be by observing capillary before and after imbibition
Interior level change measures the size of rock core imbibition amount.But the device is only applicable to there is also shortcoming using device experiment
The rock sample of high porosity, high permeability, for fine and close rock sample, because its own pore throat is tiny, pore volume is limited, imbibition process
In volume change it is minimum, it is difficult to measure the oil mass that imbibition goes out, and experiment is influenceed there is also certain error during reading
The degree of accuracy.Another device is the direct weight for weighing rock core in experiment, and its experimental provision is that one end of electronic balance passes through
Fishing line is connected with rock core, and rock core is immersed in the beaker equipped with imbibition solution, and the other end of electronic balance is connected with computer, electricity
Data collecting system is housed in brain, it can real-time recorded electronic balance registration.The principle of this method is due to imbibition effect
Generation, wetting phase displaces non-wetted phase, and the density contrast between wetting phase and non-wetted phase can cause rock core weight to occur
Change, electronic balance, which can change with time, records the change of rock core weight, and then can obtain change of the replacement rate with the time
Change.This method equally exists shortcoming, during imbibition, the evaporation of imbibition solution, the change of component caused by ambient temperature, humidity change,
Certain influence will be produced to experimental result, while surrounding flow or hanging rope disturbance can cause the reading of balance unstable
It is fixed, which exasperates the presence of error, and " wall built-up phenomenon " be present, increase the error of experiment.
The content of the invention
The defects of in order to overcome above-mentioned prior art, the purpose of this utility model are that providing a kind of spontaneous imbibition of rock core drives
No matter oily experimental provision, the device are all suitable for for conventional core and compact rock core, and the environment closing that rock core is in, Bu Huishou
To the interference of external environment, and the device has two methods to measure experimental result, and experimental result can be verified, increases
The accuracy of experimental result.
In order to achieve the above object, the technical solution of the utility model is：
A kind of spontaneous imbibition experiment device of rock core, including experimental bench 3, electronic balance 2 is provided with experimental bench 3, electricity
The signal end of the signal output part connection computer 1 of sub- balance 2, the lower section of experimental bench 3 is provided with gauge line 5 and test bottle 6, fishing line
4 connect the weight sensitive hook of electronic balance 2 through the one end of gauge line 5, and the connection of the other end of fishing line 4 is placed in test bottle 6
Rock core, the side exit of test bottle 6 connect rubber hose 7, and tongs 8 is provided with rubber hose 7 and is used to fix in gauge line
Liquid level.
Described gauge line 5 is the graduated hollow circular-tube of isodiametric band.
The precision of described electronic balance 2 is 0.0001.
Design principle of the present utility model is：Rock core in test bottle 6 contacts with extraneous solution, in the effect of capillary force
Under can occur imbibition effect, extraneous solution can enter rock core displacement discharge rock core in oil, because density contrast can cause on oil phase
Move on in gauge line 5, can measure the number of oil phase imbibition output under different time by the scale of gauge line 5, and by
Electronic balance 2 is also connected by fishing line 4 in rock core, the weight of rock core can be descended at different moments with real time measure by electronic balance 2,
Rock core weight and the relation of time can be recorded by the acquisition system of computer 1, obtained down at different moments by gauge line 5
Imbibition oil mass is multiplied by the density of oil phase, and original oil mass can be obtained by imbibition recovery ratio over time then divided by rock core
Variation relation；By electronic balance 2 record at different moments under rock core weight, by weight difference divided by density contrast multiplied by with oil
The density of phase, original oil mass can also obtain the change of imbibition recovery ratio over time and close in obtained result divided by rock core
System.Imbibition recovery ratio can be obtained by two methods to change with time relation, two kinds of results can be analyzed,
Checking mutually, if had a power failure in experimentation, electronic balance 1 no longer works, and can still obtain experimental result, unlikely
In re-starting this experiment.
The advantages of the utility model：
1st, the device disclosure satisfy that all types of rock cores carry out imbibition experiments, and no matter height is oozed in the hole of rock core, it is fine and close with
The un-densified research that the device can be used to carry out imbibition experiment；
2nd, the device improves the correctness of experiment, can obtain two groups of experimental results, can be with by contrasting two groups of results
The correctness of confirmatory experiment result；3. the device is easy to operate, it is easily portable.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the spontaneous imbibition experiment device of rock core of the utility model.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
Reference picture 1, a kind of spontaneous imbibition experiment device of rock core, including experimental bench 3, precision is provided with experimental bench 3
For 0.0001 electronic balance 2, the signal end of the signal output part connection computer 1 of electronic balance 2 can recorded electronic day in real time
Flat registration, the lower section of experimental bench 3 are provided with gauge line 5 and test bottle 6, and gauge line 5 is upper, and test bottle 6 is under, between the two
It can combine with separating, object can be placed after separation into test bottle 6, fishing line 4 connects electronics day through the one end of gauge line 5
Flat 2 weight sensitive hook, the connection of the other end of fishing line 4 are placed on the rock core in test bottle 6, the side exit connection of test bottle 6
Rubber hose 7, rubber hose 7 can adjust the liquid level in gauge line, and tongs 8 is provided with rubber hose 7 and is used for
Liquid level in fixed gauge line.
Described gauge line 5 is the graduated hollow circular-tube of isodiametric band, and measures range can meet all situations.
Operation principle of the present utility model is：Operating procedure is as follows：
(1) ready fishing line 4 is connected with the bottom of electronic balance 2 first, and causes fishing line 4 from gauge line 5
Inside pass through, length reach test bottle 6 medium position；(2) that the rock core of target block then is cut into standard is big
It is small, then cleaned, dried, when being dried to rock core weight and no longer changing, weigh its dry weight, it is then that rock core is fully saturated
Oil, after its aging, it is connected after the oil that core surface adsorbs is dried with fishing line 4, is put into that to be already equipped with part imbibition molten
In the test bottle 6 of liquid, and gauge line 5 and test bottle 6 are combined；
(3) finally imbibition solution is injected by the top of gauge line 5, and liquid level is adjusted to the conjunction of gauge line 5
Right position is put, and then opens computer, turn-on data acquisition system.
(4) progress over time, the oil that imbibition goes out will be floated at the top of the liquid level of gauge line 5, by reading scale
Value can learns how much is oil mass that imbibition goes out, and the data it can in addition contain be recorded by electronic balance 2 calculate what imbibition went out
The number of oil mass, the variation relation of imbibition recovery ratio over time can be calculated using both modes, and mutually can be with
Verified, add the accuracy of experiment.
Claims (3)
1. a kind of spontaneous imbibition experiment device of rock core, it is characterised in that including experimental bench (3), experimental bench is provided with (3)
Electronic balance (2), the signal end of the signal output part connection computer (1) of electronic balance (2), experimental bench are provided with below (3)
Gauge line (5) and test bottle (6), the weight sensitive of fishing line (4) through gauge line (5) one end connection electronic balance (2) are linked up with, fish
The connection of line (4) other end is placed on the rock core in test bottle (6), the side exit connection rubber hose (7) of test bottle (6), rubber
The liquid level that tongs (8) is used to fix in gauge line is provided with glue flexible pipe (7).
A kind of 2. spontaneous imbibition experiment device of rock core according to claim 1, it is characterised in that described gauge line
(5) it is the graduated hollow circular-tube of isodiametric band.
A kind of 3. spontaneous imbibition experiment device of rock core according to claim 1, it is characterised in that described electronics day
The precision of flat (2) is 0.0001.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721074651.0U CN207114389U (en) | 2017-08-25 | 2017-08-25 | A kind of spontaneous imbibition experiment device of rock core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721074651.0U CN207114389U (en) | 2017-08-25 | 2017-08-25 | A kind of spontaneous imbibition experiment device of rock core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207114389U true CN207114389U (en) | 2018-03-16 |
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ID=61570711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721074651.0U Expired - Fee Related CN207114389U (en) | 2017-08-25 | 2017-08-25 | A kind of spontaneous imbibition experiment device of rock core |
Country Status (1)
| Country | Link |
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| CN (1) | CN207114389U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060627A (en) * | 2018-08-27 | 2018-12-21 | 中国海洋石油集团有限公司 | Improve the device and method of the volumetric method measurement spontaneous imbibition oil displacement efficiency of water-wet oil reservoir |
| CN109115993A (en) * | 2018-08-27 | 2019-01-01 | 中国海洋石油集团有限公司 | A kind of spontaneous imbibition oil displacement efficiency measuring device of LOW PERMEABILITY RESERVOIR and method |
| CN109856030A (en) * | 2019-02-15 | 2019-06-07 | 中国石油大学(北京) | The determination method of imbibition experimental provision and imbibition recovery percent of reserves |
| CN109915126A (en) * | 2019-04-03 | 2019-06-21 | 中国石油大学(北京) | The measuring method and imbibition experimental rig of the imbibition recovery percent of reserves of oil-bearing rock |
| CN110987766A (en) * | 2019-12-28 | 2020-04-10 | 西安石油大学 | Fluid filling device and method of imbibition bottle for imbibition experiment |
| CN115372197A (en) * | 2022-08-22 | 2022-11-22 | 西安石油大学 | Evaluation method for quantifying clay imbibition oil displacement effect based on imbibition-ion diffusion lag time |
| CN116930451A (en) * | 2022-04-02 | 2023-10-24 | 大庆油田有限责任公司 | Novel experimental device for evaluating fracturing fluid imbibition oil extraction effect |
-
2017
- 2017-08-25 CN CN201721074651.0U patent/CN207114389U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060627A (en) * | 2018-08-27 | 2018-12-21 | 中国海洋石油集团有限公司 | Improve the device and method of the volumetric method measurement spontaneous imbibition oil displacement efficiency of water-wet oil reservoir |
| CN109115993A (en) * | 2018-08-27 | 2019-01-01 | 中国海洋石油集团有限公司 | A kind of spontaneous imbibition oil displacement efficiency measuring device of LOW PERMEABILITY RESERVOIR and method |
| CN109060627B (en) * | 2018-08-27 | 2020-09-08 | 中国海洋石油集团有限公司 | Device and method for measuring spontaneous imbibition oil displacement efficiency of water-wet reservoir by improved volume method |
| CN109856030A (en) * | 2019-02-15 | 2019-06-07 | 中国石油大学(北京) | The determination method of imbibition experimental provision and imbibition recovery percent of reserves |
| CN109856030B (en) * | 2019-02-15 | 2024-05-24 | 中国石油大学(北京) | Imbibition experimental device and method for determining imbibition extraction degree |
| CN109915126A (en) * | 2019-04-03 | 2019-06-21 | 中国石油大学(北京) | The measuring method and imbibition experimental rig of the imbibition recovery percent of reserves of oil-bearing rock |
| CN109915126B (en) * | 2019-04-03 | 2021-01-05 | 中国石油大学(北京) | Method for measuring imbibition production degree of oil-bearing rock and imbibition test device |
| CN110987766A (en) * | 2019-12-28 | 2020-04-10 | 西安石油大学 | Fluid filling device and method of imbibition bottle for imbibition experiment |
| CN116930451A (en) * | 2022-04-02 | 2023-10-24 | 大庆油田有限责任公司 | Novel experimental device for evaluating fracturing fluid imbibition oil extraction effect |
| CN115372197A (en) * | 2022-08-22 | 2022-11-22 | 西安石油大学 | Evaluation method for quantifying clay imbibition oil displacement effect based on imbibition-ion diffusion lag time |
| CN115372197B (en) * | 2022-08-22 | 2024-06-04 | 西安石油大学 | Evaluation method for quantifying clay swelling oil displacement effect based on imbibition-ion diffusion lag time |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20180825 |