CN205477601U - Test shale crack water -absorbing capacity's device - Google Patents
Test shale crack water -absorbing capacity's device Download PDFInfo
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- CN205477601U CN205477601U CN201620240065.8U CN201620240065U CN205477601U CN 205477601 U CN205477601 U CN 205477601U CN 201620240065 U CN201620240065 U CN 201620240065U CN 205477601 U CN205477601 U CN 205477601U
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- Prior art keywords
- water
- rock beam
- absorbing capacity
- cleft
- water absorbing
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Abstract
The utility model discloses a test shale crack water -absorbing capacity's device, including water storage mechanism, working shaft, rock plate fixed establishment and the metering mechanism who connects gradually, the working shaft is the constant speed constant pressure pump, be used for with water pump in the water storage mechanism is gone into among the rock plate fixed establishment, it possesses fissured shale experiment rock plate to be provided with in the rock plate fixed establishment, metering mechanism with rock plate fixed establishment's delivery port links to each other for follow in detecting the unit interval the water yield that the rock plate fixed establishment delivery port flows. The utility model discloses a whether the water yield change that detects rock plate fixed establishment water inlet and delivery port decides should test rock plate and absorb water and close fully to quality through rock plate around the experiment with computing changes, combines crack table area calculation to draw the crack face than the relation with the soakage. And through using stratum sillar experiment, set up thermostated container and backpressure valve, physical condition among the better simulated formation, simple structure, convenient operation and to test stable in structure reliable.
Description
Technical field
This utility model relates to shale water absorbing capacity research field, particularly relates to a kind of test sheets lithofraction
The device of seam water absorbing capacity.
Background technology
In large-scale shale fracturing, the flowing in rock seam (crack) ruptured of substantial amounts of water, by
In the hydration of shale self, when gas well water pumping gas production, have part water and cannot return and eject,
The yield effect of retention how many pairs of gas wells of the water yield in the earth formation is very big, so determining shale crack Zhong Shui
Amount retaining portion is most important for research gas well yield.At present, water the most it is not specifically designed at shale
The measuring instrument of the retention amount in crack, is generally individually to be measured by fracture guide instrument, the method
Having a following deficiency: 1) water pot can not heat, simply heat on pipeline, it is impossible to and simulation water is on ground
Temperature under the conditions of Ceng；2) rock beam size is less, and 17.6 cm x 3.8 centimetres, water is at the least
Absorb less on long-pending scar, easily bring bigger calculating error；3) heating to rock beam uses and adds
Hot plate, temperature accuracy is the highest.
As can be seen here, existing instrument is in structure, method and use, it is clear that still suffered from inconvenience with
Defect, and be urgently further improved.How to found a kind of simple in construction, test structure accurate
The device of new test sheets cleft water absorbing capacity, real belong to the target that current industry pole need to be improved.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of simple in construction, test structure accurately
The device of test sheets cleft water absorbing capacity so that it is energy preferably simulation stratum condition, overcomes existing
The deficiency of test instrunment.
For solving above-mentioned technical problem, this utility model provides water storage mechanism, the confession including being sequentially connected with
Water pump, rock beam fixed mechanism and metrological service,
Described feed pump is constant speed and constant pressure pump, for the water in described water storage mechanism is pumped into described rock beam
In fixed mechanism；
The shale experiment rock beam possessing crack it is provided with in described rock beam fixed mechanism；
Described metrological service is connected with the outlet of described rock beam fixed mechanism, is used for detecting the unit interval
The interior water yield flowed out from described rock beam fixed mechanism outlet.
As a kind of improvement of the present utility model, it is provided with two blocks of shale in described rock beam fixed mechanism real
Test rock beam, between described two blocks of shale experiment rock beam, form described crack.
Improve further, described crack is paved with a certain amount of proppant.
Improving further, described proppant uses natural sand or artificial high-strength ceramic granule.
Improving further, described shale experiment rock beam uses a length of 25.4 centimetres, a width of 3.8 centimetres,
Thickness is the stratum rock beam of 2.54 centimetres.
Improving further, described metrological service is electronic scale restatement.
Improving further, described metrological service also includes that the computer being connected with described electronic scale restatement sets
Standby.
Improve further, between described rock beam fixed mechanism and metrological service, be provided with back-pressure valve.
Improving further, the device of described shale crack water absorbing capacity also includes calorstat, described water storage
Mechanism, feed pump and rock beam fixed mechanism are arranged in described calorstat.
Using above-mentioned technical scheme, this utility model at least has the advantage that
This utility model is by using constant speed and constant pressure pump to pump into moisture for testing in rock beam crack, and uses
The water yield flowed out from rock beam fixed mechanism outlet in metrological service's detection unit interval, by comparing stream
Enter and flow out the water yield in this experiment rock beam crack, determine whether this experiment rock beam absorbs water to satisfy and close, then pass through
That weighs before and after the water suction of this experiment rock beam is of poor quality, calculates crack surface to volume ratio in conjunction with fracture faces is long-pending
With the relation of water absorption, and then draw the relation of crack complexity and water absorption.
This utility model by arranging calorstat and back-pressure valve, physical condition in more preferable simulated formation,
Simple in construction, easy to operate and test Stability Analysis of Structures reliable.
Accompanying drawing explanation
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to it is new to better understand this practicality
The technological means of type, makees the most in detail this utility model with detailed description of the invention below in conjunction with accompanying drawing
Describe in detail bright.
Fig. 1 is the structural representation of this utility model test sheets cleft water absorbing capacity device.
Fig. 2 is rock beam fixed mechanism internal junction in this utility model test sheets cleft water absorbing capacity device
Structure schematic diagram.
Detailed description of the invention
The device of this utility model test sheets cleft water absorbing capacity is that one can be under simulation stratum condition
The device of shale crack water suction situation during MHF, when using this device, by calculating
The difference of the gateway water yield under dissimilar fracture pattern, obtains the relation of crack surface to volume ratio and water absorption,
And then obtain the row of returning and lead and the relation of crack complexity.The device of this test sheets cleft water absorbing capacity
Concrete structure is as follows:
Referring to the drawings shown in 1, the device of this utility model test sheets cleft water absorbing capacity, including depending on
The water storage mechanism 1 of secondary connection, feed pump 4, rock beam fixed mechanism 2 and metrological service 3.
This water storage mechanism 1, is used for storing test water.
This feed pump 4 is constant speed and constant pressure pump, fixes machine for the water in water storage mechanism 1 is pumped into rock beam
In structure 2.
The shale experiment rock beam 8 possessing crack it is provided with in this rock beam fixed mechanism 2.Should in the present embodiment
Being provided with the shale experiment rock beam 8 of two pieces of standards in rock beam fixed mechanism 2, this shale experiment rock beam 8 is adopted
With long 25.4 centimetres, wide 3.8 centimetres, the stratum rock beam of thick 2.54 centimetres.These two blocks experiment rock beams 8
Between be paved with a certain amount of proppant 9 and carry out the supporting crack under simulation stratum condition, this proppant 9 one
As use there is certain particle size and the natural sand of grating or artificial high-strength ceramic granule, such as accompanying drawing 2 institute
Show.The water then pumped into by feed pump 4, after this rock beam fixed mechanism 2 water inlet enters, flows through this
Crack between two blocks of experiment rock beams 8, flows out from the outlet of this rock beam fixed mechanism 2.
This metrological service 3, flows out from this rock beam fixed mechanism 2 outlet in detecting the unit interval
The water yield.In the present embodiment, dose mechanism 3 is electronic scale restatement, and this electronic scale restatement passes through test constantly
From the weight of the water that this rock beam fixed mechanism 2 outlet flows out, in the unit of account time, this rock beam is fixed
The water yield of mechanism.In order to promptly and accurately obtain test the end time, this metrological service 3 also can connect
Connect computer equipment 7, it is achieved preferably detect the change of the water yield.
For more preferable simulated formation physical condition, between this rock beam fixed mechanism 2 and metrological service 3
Pipeline be provided with back-pressure valve 5, this back-pressure valve 5 is for adjusting this rock beam fixed mechanism 2 water outlet
Pressure.And the device of this utility model test sheets cleft water absorbing capacity also includes calorstat 6, this water storage
Mechanism 1, feed pump 4 and rock beam fixed mechanism 2 and back-pressure valve 5 are arranged in this calorstat 6, with
Make the temperature of water in water storage mechanism 1 and rock beam fixed mechanism 2 test the temperature of rock beam closer to ground
Layer actual temperature, makes experimental result accurately and reliably.
The testing procedure of the device of this utility model test sheets cleft water absorbing capacity is as follows:
1) prepared by experiment rock beam
Formation core is fabricated to the standard test rock beam of 25.4 cm x 3.8 cm x 2.54 centimetres；
2) before experiment weighing two blocks of experiment rock beams 8, the quality of its two blocks experiment rock beams 8 is m1；
3) experiment rock beam 8 is put in rock beam fixed mechanism 2, connect pipeline；
4) temperature of regulating thermostatic case 6 is to assigned temperature；
5) with certain pump water discharge capacity pump water in rock beam fixed mechanism 2, simultaneously by metrological service 3
Persistently detect the water yield of this rock beam fixed mechanism 2 water outlet, when the water inlet of this rock beam fixed mechanism 2
Stop water filling when the water yield of mouth and outlet is equal within the unit interval, illustrate test rock beam 8 and support
The water absorption of agent 9 reaches saturated；
6) calorstat 6 is lowered the temperature, take out experiment rock beam 8, weigh, now test rock beams 8 for two pieces
Quality m2；
7) water absorption of the type experiment rock beam unit water suction area is calculated, such as formula (1):
(m2-m1)/A (1)
Wherein, m1 is the quality of the front two blocks of experiment rock beams of test, and m2 is two blocks of experiment rock beams after test
Quality, A is that at the crack that two blocks of experiment rock beams are formed, the water sucting surface of two blocks of experiment rock beams amasss.
This utility model can simulate different face by the structure and shape that change experiment rock beam surface
Water absorbing capacity than rock.Owing to water absorption and the lithology of rock, surface to volume ratio are relevant, by this device
Measurement can draw different lithology rock under conditions of, the relation of water absorption and surface to volume ratio, owing to splitting
Therefore and then can draw crack complexity and water absorption seam complexity is directly proportional to surface to volume ratio,
Relation.
This utility model is by using stratum sillar to test, by arranging calorstat and back-pressure valve,
Preferably physical condition in simulated formation, simple in construction, easy to operate and test Stability Analysis of Structures is reliable.
The above, be only preferred embodiment of the present utility model, not makees this utility model
Any pro forma restriction, those skilled in the art utilize the technology contents of the disclosure above to make a little letter
Single amendment, equivalent variations or modification, all fall within protection domain of the present utility model.
Claims (9)
1. the device of a test sheets cleft water absorbing capacity, it is characterised in that include being sequentially connected with
Water storage mechanism, feed pump, rock beam fixed mechanism and metrological service,
Described feed pump is constant speed and constant pressure pump, for the water in described water storage mechanism is pumped into described rock beam
In fixed mechanism；
The shale experiment rock beam possessing crack it is provided with in described rock beam fixed mechanism；
Described metrological service is connected with the outlet of described rock beam fixed mechanism, is used for detecting the unit interval
The interior water yield flowed out from described rock beam fixed mechanism outlet.
The device of test sheets cleft water absorbing capacity the most according to claim 1, it is characterised in that
Be provided with two blocks of shale experiment rock beams in described rock beam fixed mechanism, described two blocks of shale experiment rock beam it
Between form described crack.
The device of test sheets cleft water absorbing capacity the most according to claim 2, it is characterised in that
Described crack is paved with a certain amount of proppant.
The device of test sheets cleft water absorbing capacity the most according to claim 3, it is characterised in that
Described proppant uses natural sand or artificial high-strength ceramic granule.
The device of test sheets cleft water absorbing capacity the most according to claim 2, it is characterised in that
Described shale experiment rock beam uses a length of 25.4 centimetres, and a width of 3.8 centimetres, thickness is 2.54 centimetres
Stratum rock beam.
The device of test sheets cleft water absorbing capacity the most according to claim 1, it is characterised in that
Described metrological service is electronic scale restatement.
The device of test sheets cleft water absorbing capacity the most according to claim 6, it is characterised in that
Described metrological service also includes the computer equipment being connected with described electronic scale restatement.
The device of test sheets cleft water absorbing capacity the most according to claim 1, it is characterised in that
It is provided with back-pressure valve between described rock beam fixed mechanism and metrological service.
The device of test sheets cleft water absorbing capacity the most according to claim 1, it is characterised in that
The device of described shale crack water absorbing capacity also includes calorstat, described water storage mechanism, feed pump and rock
Plate fixation mechanism is arranged in described calorstat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620240065.8U CN205477601U (en) | 2016-03-25 | 2016-03-25 | Test shale crack water -absorbing capacity's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620240065.8U CN205477601U (en) | 2016-03-25 | 2016-03-25 | Test shale crack water -absorbing capacity's device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477601U true CN205477601U (en) | 2016-08-17 |
Family
ID=56653033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620240065.8U Expired - Fee Related CN205477601U (en) | 2016-03-25 | 2016-03-25 | Test shale crack water -absorbing capacity's device |
Country Status (1)
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| CN (1) | CN205477601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588402A (en) * | 2021-06-21 | 2021-11-02 | 中国石油大学(华东) | Experimental device for ultrasonic testing shale hydration microcrack propagation characteristic of high temperature and high pressure water circulation |
-
2016
- 2016-03-25 CN CN201620240065.8U patent/CN205477601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588402A (en) * | 2021-06-21 | 2021-11-02 | 中国石油大学(华东) | Experimental device for ultrasonic testing shale hydration microcrack propagation characteristic of high temperature and high pressure water circulation |
| CN113588402B (en) * | 2021-06-21 | 2023-12-26 | 中国石油大学(华东) | Ultrasonic wave detects hydrologic cycle effect shale hydration microcrack extension experimental apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |