CN205844144U - A kind of shale adds driving pressure imbibition measurement apparatus - Google Patents
A kind of shale adds driving pressure imbibition measurement apparatus Download PDFInfo
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- CN205844144U CN205844144U CN201620417065.0U CN201620417065U CN205844144U CN 205844144 U CN205844144 U CN 205844144U CN 201620417065 U CN201620417065 U CN 201620417065U CN 205844144 U CN205844144 U CN 205844144U
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- pipeline
- pressure
- holding unit
- plunger
- core holding
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Abstract
This utility model relates to a kind of shale and adds driving pressure imbibition measurement apparatus, it is characterized in that: described core holding unit is positioned at control panel rear, upper and lower side is respectively by screw thread and plunger I, plunger II connects, pipeline I penetrates plunger I and connects with core holding unit inner space, the connected state controlled valve I of pipeline I controls, pipeline II and pipeline III penetrates plunger II and connects with core holding unit inner space, the connected state controlled valve II of pipeline II controls, pipeline III right-hand member is connected with pressure transducer, tempering graded tube is had above pressure transducer, it is connected with force (forcing) pump by pipeline above tempering graded tube, internal pressure is read by Pressure gauge.
Description
Technical field
This utility model belongs to petroleum works field, is specifically related to a kind of shale and adds driving pressure imbibition measurement apparatus.
Background technology
Shale reservoir is during fracturing developing, and fracturing fluid imbibition is a critically important influence factor.Both at home and abroad for
The research of fracturing fluid imbibition is the technology of very foreword.Affect a lot of because have of fracturing fluid imbibition, strata pressure, semipermeable membrane, ooze
Thoroughly the joint effect to a certain extent such as the contact area on pressure, capillary force, poroperm characteristics, fracturing fluid and stratum oozing of fracturing fluid
Inhale.Owing to the throat of low permeability reservoir is tiny, being mostly in micron order even nanoscale, the spontaneous imbibition that capillary force causes is existing
As becoming apparent from than conventional reservoir, the impact producing reservoir is bigger.And stratum in fracturing process fracturing unit truck by upper all places
Fracturing fluid is injected in stratum the increase that can cause strata pressure, is equivalent to provide one to fracturing fluid imbibition and drives pressure.
At present, the spontaneous imbibition for shale both at home and abroad is studied and is concentrated mainly in laboratory environment, at normal temperatures and pressures,
By measuring shale, the suction volume of liquid is conducted a research.But at the scene in operation process, due to the pressurization of fracturing unit truck, sleeve pipe
The middle pressure that can there is a certain size, but which type of controlling the impact of imbibition of casing pressure size be, great sleeve pipe
Pressure is more beneficial for imbibition and is badly in need of launching research.Therefore, driving pressure fracturing liquid to interact with stratum is which type of
Needs conduct a research, for casing pressure control be badly in need of exploitation a kind of for shale add driving pressure imbibition measurement apparatus.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of shale and adds driving pressure imbibition measurement apparatus, this dress
Put on the basis of original device, by adding a pressure actuated device so that when people are when carrying out imbibition experiment, it is possible to
There is provided according to demand and suitably drive pressure, more preferable simulated field shale and the interaction of fracturing fluid, and close according to this
The control casing pressure of reason.
For solving above-mentioned technical problem, the technical scheme that this utility model is used is:
A kind of shale adds driving pressure imbibition measurement apparatus, and its structure includes: core holding unit, control valve I, pipeline I, post
Plug I, control panel, force (forcing) pump, tempering graded tube, Pressure gauge, control valve II, pipeline II, plunger II, pipeline III, pressure sensing
Device, it is characterised in that: described core holding unit is positioned at control panel rear, core holding unit upper and lower side respectively by screw thread with
Plunger I, plunger II connect, and pipeline I penetrates plunger I and connects with core holding unit inner space, and the connected state of pipeline I is controlled
Valve I controls, and pipeline II and pipeline III penetrates plunger II and connects with core holding unit inner space, the connected state of pipeline II
Controlled valve II controls, and pipeline III right-hand member is connected with pressure transducer, has tempering graded tube above pressure transducer, and tempering is carved
Being connected with force (forcing) pump by pipeline above degree pipe, pipeline internal pressure is read by Pressure gauge.Principle of the present utility model be by
When shale core contacts with fracturing fluid under the many factors such as capillary force, osmotic pressure, pressure act on jointly, fracturing fluid can quilt
In the middle of spontaneous suction rock core.And scene is usually rock core under environment under high pressure and contacts with fracturing fluid.In order under analog-driven pressure
The rock core imbibition situation to fracturing fluid, this device utilizes pipeline to apply one to core holding unit and drives pressure, by metering steel
Change the change of liquid level in graded tube thus reach shale and add the purpose driving pressure imbibition to measure.
The beneficial effects of the utility model:
By technique scheme it can be seen that this utility model provides a kind of shale adds driving pressure imbibition measurement
Device, this device is by adding a driving pressure power apparatus so that plus driving pressure on the basis of original experiment is measured, make
Shale imbibition process closer to site environment, the size of pressure in fracturing process can be controlled according to this simultaneously, practicality is high.
Accompanying drawing explanation
Fig. 1 is this utility model overall schematic.In figure: 1 core holding unit, 2 control valves I, 3 pipeline I, 4 plunger I, 5 controls
Panel processed, 6 force (forcing) pumps, 7 tempering graded tubes, 8 Pressure gauges, 9 control valves II, 10 pipeline II, 11 plunger II, 12 pipeline III, 13 pressures
Force transducer.
Detailed description of the invention
Embodiment 1
A kind of shale adds driving pressure imbibition device, and its structure includes: core holding unit 1, tempering graded tube 7, Pressure gauge
8, control panel 5, pressure transducer 13, the described tempering graded tube 7 bottom by pipeline III 12 with described core holding unit 1
Connecting, described control valve II 9 is connected with the bottom of described core holding unit 1 by pipeline II 10, and described control valve I 2 is passed through
Pipeline I 3 is connected with the top of described core holding unit 1.
Judge whether contact with water bottom rock core by control valve II bottom core holding unit.At the bottom of control valve II and rock core
Face is in the same horizontal line.That time of control valve II water outlet, rock core bottom surface just contacts with water, now closing control valve II.
When experiment starts, control valve I is closed mode, is full of water in graded tube and pipeline III, and rock core bottom surface contacts with water, by basis
Needing to add required driving pressure with force (forcing) pump, utilize the value of Pressure gauge metering driving pressure power, under driving pressure, rock core is inhaled
Water, thus cause the liquid level in graded tube to decline, draw the water absorption of rock core by the decline of liquid level in metering scale pipe, now
Record is reverse displacement, and when control valve I is open mode, now record is that same-direction-driving replaces.
The measurement apparatus of the present embodiment also includes control panel 5, described control panel 5 and horizontal plane.Described control
The front of panel 5 arranges described core holding unit 1, tempering graded tube 7, control valve I 2 and control valve II 9.Described control panel
The rear of 5 arranges described pipeline, pipeline I 3, pipeline II 10, pipeline III 12.Measurement apparatus will be used by control panel
All pipelines block the rear at control panel, pipeline the rear of control panel arrange, measurement apparatus both can have been made neat
Attractive in appearance, may insure that again each bar pipeline is unimpeded, it is to avoid abnormal conditions occur.
According to this utility model for the pressurization imbibition measuring method of shale, using above-mentioned measurement apparatus, it is according to successively
Order comprises the following steps:
Step one: put into by rock core in core holding unit, connects the pipeline of measurement apparatus and checks sealing；
Step 2: close the control valve at core holding unit top, open the control valve bottom core holding unit simultaneously；
Step 3: inject water in graded tube, water arrives at the bottom of core holding unit after flowing through the pipeline bottom core holding unit
The control valve in portion；
Step 5: during control valve water outlet bottom core holding unit, close this control valve；
Step 6: utilize force (forcing) pump to add required pressure as required, utilize Pressure gauge to read；
Step 7: rock core absorbs water, graded tube liquid level declines, metering rock core water suction volume, and is converted into rock core water suction quality
Relation over time.
Claims (1)
1. shale adds a driving pressure imbibition measurement apparatus, and its structure includes: core holding unit (1), control valve I (2), pipeline
I (3), plunger I (4), control panel (5), force (forcing) pump (6), tempering graded tube (7), Pressure gauge (8), control valve II (9), pipeline
II (10), plunger II (11), pipeline III (12), pressure transducer (13), it is characterised in that: described core holding unit (1) position
In control panel (5) rear, core holding unit (1) upper and lower side is connected with plunger I (4), plunger II (11) by screw thread respectively, pipe
Line I (3) penetrates plunger I (4) and connects with core holding unit (1) inner space, the connected state controlled valve I (2) of pipeline I (3)
Controlling, pipeline II (10) and pipeline III (12) penetrates plunger II (11) and connects with core holding unit (1) inner space, pipeline
The connected state controlled valve II (9) of II (10) controls, and pipeline III (12) right-hand member is connected with pressure transducer (13), and pressure passes
Sensor (13) top has tempering graded tube (7), tempering graded tube (7) top to be connected, inside pipeline with force (forcing) pump (6) by pipeline
Pressure is read by Pressure gauge (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417065.0U CN205844144U (en) | 2016-05-11 | 2016-05-11 | A kind of shale adds driving pressure imbibition measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417065.0U CN205844144U (en) | 2016-05-11 | 2016-05-11 | A kind of shale adds driving pressure imbibition measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205844144U true CN205844144U (en) | 2016-12-28 |
Family
ID=57628250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620417065.0U Expired - Fee Related CN205844144U (en) | 2016-05-11 | 2016-05-11 | A kind of shale adds driving pressure imbibition measurement apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205844144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769769A (en) * | 2017-01-05 | 2017-05-31 | 中国石油大学(北京) | A kind of rock pressurization imbibition device |
| CN111521542A (en) * | 2020-06-10 | 2020-08-11 | 东北石油大学 | Visual imbibition experimental apparatus of tight reservoir rock core static pressurization |
-
2016
- 2016-05-11 CN CN201620417065.0U patent/CN205844144U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769769A (en) * | 2017-01-05 | 2017-05-31 | 中国石油大学(北京) | A kind of rock pressurization imbibition device |
| CN111521542A (en) * | 2020-06-10 | 2020-08-11 | 东北石油大学 | Visual imbibition experimental apparatus of tight reservoir rock core static pressurization |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20170511 |