CN105352788B - A kind of hydraulic pressure apparatus for controlling of supply and its test method for Hydraulic Fracturing Experiment - Google Patents
A kind of hydraulic pressure apparatus for controlling of supply and its test method for Hydraulic Fracturing Experiment Download PDFInfo
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- CN105352788B CN105352788B CN201510814587.4A CN201510814587A CN105352788B CN 105352788 B CN105352788 B CN 105352788B CN 201510814587 A CN201510814587 A CN 201510814587A CN 105352788 B CN105352788 B CN 105352788B
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- booster pump
- pressure
- water guide
- supply
- pump
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
Abstract
The present invention relates to a kind of hydraulic pressure apparatus for controlling of supply and its test method for Hydraulic Fracturing Experiment, device includes diaphragm pump, booster pump and water guide billet；The arrival end of diaphragm pump is connected with water supply line, the port of export pipeline connection of membrane pump outlet end and booster pump；Another outlet of the port of export of booster pump is removably placed in the surface of test piece in forcing press by pressure duct and the conduit pipe pipeline connection of water guide billet, water guide billet, and the highly pressurised liquid after supercharging is sent to inside test specimen by booster pump by conduit pipe.The present invention is easy to operate, can be lasting, stable, accurately provide and record hydraulic pressure in the range of larger pressure range.In Hydraulic Fracturing Tests, directly the present invention can be connected on single shaft, twin shaft or triaxial pressure machine and pressure break is carried out to experiment test specimen, the connection and operation of equipment are all very simple, hydraulic pressure supply is stablized, pressure size can be controlled voluntarily, and the record such as pressure value, change is detailed, and test effect is good.
Description
Technical field
The present invention relates to a kind of hydraulic pressure apparatus for controlling of supply and its test method for Hydraulic Fracturing Experiment.
Background technology
Hydrofracturing is a kind of emerging technology that recent decades grow up, its essence is using fluid pressure transmission characteristic,
Inject fluid into porous media, promote crack to generate and extend in a certain direction.Hydrofracturing uses in the oil industry
Since, exploration and exploitation to oil gas field play an important role.Since nineteen forty-seven, the U.S. carried out first time hydrofracturing,
Larger development is at home and abroad all achieved from theoretical research to field practice.Hydrofracturing simulation laboratory test is visual understanding
Fracture initiation and extension, explore fracture initiation and extend the important means of mechanism, are caused in Practical Project, preferably playing hydraulic pressure
The effect for splitting technology is of great significance.
Currently used hydrofracturing equipment is large-scale three axis Hydraulic Fracturing Experiment system, which is tried by large-scale real triaxial
Frame is tested, Water hydraulic static pressure loading device, pressure plare, source of stable pressure, controller and other ancillary equipments are formed.The system advantage is to be easily achieved
Hydrofracturing under three axis confined pressures.Shortcoming is equipment complexity, and construction cost is high, and occupancy physical space is larger, is not easy to realize hydraulic pressure
The large-scale popularization of fracturing experiment.The hydraulic pressure supply and control device that we invent, in existing single shaft, twin shaft and triaxial pressure machine
Under cooperation, it is easy to realize the Hydraulic Fracturing Experiment under single shaft, twin shaft and three axis confined pressures.Current colleges and universities and scientific research institution at home
In, single shaft, twin shaft and triaxial pressure machine have been a large amount of existing normal experiment devices, with the hydraulic pressure supply for closing our inventions and
Control device, can make being widely applied for Hydraulic Fracturing Experiment become a reality.
The content of the invention
It is an object of the invention to provide a kind of for the hydraulic pressure apparatus for controlling of supply of Hydraulic Fracturing Experiment and its experiment side
Method, the device can carry out Hydraulic Fracturing Tests, to solve existing Hydraulic Fracturing Experiment equipment with the convenient connection of existing forcing press
The problem of cost is excessive.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of hydraulic pressure apparatus for controlling of supply for Hydraulic Fracturing Experiment, including diaphragm pump, booster pump and water guide billet；
The arrival end of the diaphragm pump is connected with water supply line, membrane pump outlet end and the port of export pipeline connection of the booster pump；Institute
Another outlet of the port of export of booster pump is stated by pressure duct and the conduit pipe pipeline connection of the water guide billet, it is described
Water guide billet is removably placed in the surface of test piece in forcing press, and the booster pump passes through the highly pressurised liquid after supercharging described
Conduit pipe is sent to inside test specimen.
The fracturing fluids such as water are forced into highly pressurised liquid using booster pump, Hydraulic Fracturing Tests can not only be met to high pressure water
It is required that and it is simple in structure, can be attached directly on single shaft, twin shaft and three axis servo-pressing machines, it is of low cost, have extensive
The scope of application.
The arrival end of the booster pump and the port of export pipeline connection of air compressor.
The input terminal of the diaphragm pump and water tank pipeline connection.
The cross section of the water guide billet is consistent with the size of the test specimen contact surface.
The cross section of water guide billet is consistent with the size of test specimen contact surface, can effectively ensure the sealing of liquid pressing
Effect.
The conduit pipe is equipped with bending in the water guide billet, is led described in the arrival end deviation of the conduit pipe
Water billet center position setpoint distance, the conduit pipe port of export are located at the center of the water guide billet.
The ingehious design of conduit pipe structure in water guide billet, can make the pressure-loaded and hydraulic pressure control dress of forcing press
The Water hydraulic static pressure loading put works at the same time, and the high pressure and traditional Water hydraulic static pressure loading device that can bear forcing press can not be independently of
The technical barrier of forcing press.
The upper and lower surface of the water guide billet is smooth.
The pressure limit that the booster pump is provided is 0-300MPa.
The pressure duct is equipped with to observe and record the intelligence instrument of hydraulic pressure-time data.
The intelligence instrument is equipped with to transmit recorded USB interface.
A kind of test method of hydraulic pressure apparatus for controlling of supply for Hydraulic Fracturing Experiment, comprises the following steps：
Step 1：The input terminal of diaphragm pump and booster pump is connected with water source and air compressor pipeline respectively, will it is described every
The port of export of membrane pump is connected with the port of export pipeline of the booster pump；
Step 2：Water guide billet is placed between test specimen and the loading termination of forcing press；The water guide of the water guide billet
Passage is connected with the port of export pipeline of the booster pump；
Step 3：Start air compressor, initial gas pressure is provided for the booster pump, afterwards startup booster pump with
Diaphragm pump, the pressure size of highly pressurised liquid show that the highly pressurised liquid after supercharging is passed through institute by the booster pump by intelligence instrument
State conduit pipe to be sent to inside test specimen, pressurize so as to fulfill the highly pressurised liquid to the fracturing of test specimen；The air compressor,
The unlatching of booster pump and diaphragm pump in no particular order order.
The beneficial effects of the invention are as follows：
The booster pump can in 0-300MPa, stablize, accurately for equipment provide needed for pressure；Diaphragm pump can be with
The fracturing fluids such as water are supplied to booster pump, the fracturing fluids such as water are changed into highly pressurised liquid；Air compressor can provide initial gas
Body pressure；Intelligence instrument can be observed and record hydraulic pressure-time data, and data can be exported with USB device；High-pressure water pipe can be with
Liquid is transmitted, and connects this hydraulic pressure feedway and forcing press；There is conduit pipe can be by highly pressurised liquid inside water guide billet
Pass to inside test block, backing plate upper and lower surface is smooth, forcing press load can be loaded on test specimen and simulate confined pressure.
The present invention can stablize offer hydraulic pressure, be connected on forcing press and can be carried out Hydraulic Fracturing Tests.Therefore this hair
Bright supply, control and the record that according to experiment needs, can more simply, accurately carry out hydraulic pressure.
The present invention is easy to operate, can be lasting, stable, accurately provide and record water in the range of larger pressure range
Pressure.In Hydraulic Fracturing Tests, directly the present invention can be connected on single shaft, twin shaft or triaxial pressure machine and experiment test specimen is carried out
Pressure break, the connection and operation of equipment are all very simple, and hydraulic pressure supply is stablized, and pressure size can be controlled voluntarily, pressure value, change
Detailed Deng record, test effect is good.
Brief description of the drawings
Fig. 1 is apparatus of the present invention and forcing press equilibrium running diagram；
Fig. 2 is apparatus of the present invention schematic diagram；
Fig. 3 is the water guide billet axonometric drawing in apparatus of the present invention.
Marginal data：1-water tank；2-air compressor；3-diaphragm pump；4-booster pump；5-intelligence instrument；6-high
Press conduit；7-water guide billet；8-rock sample；9-forcing press.
Embodiment
Below in conjunction with attached drawing, the present invention is described in detail.
The present invention is described in further details with reference to the accompanying drawings and detailed description.
As shown in Figure 1-Figure 3, hydraulic pressure supply and control device preferably apply example and include water tank 1, air compressor 2, membrane
Pump 3, booster pump 4, intelligence instrument 5, high-pressure conduit 6, water guide billet 7.Water tank 1 is connected with equipment body, there is provided the pressure break such as water
Liquid, air compressor 2 are the compressed air source units of the system, diaphragm pump 3 and booster pump 4 are located at equipment master in the outside of equipment body
The inside of body, intelligence instrument 5 connect each equipment in equipment surface, high-pressure conduit 6, and the effect of water guide billet 7 is by pressure
The axially loaded of machine passes to test block, while it is real inside experiment test specimen highly pressurised liquid is entered by the conduit pipe inside backing plate
Existing hydrofracturing.
When this preferred embodiment is applied to Hydraulic Fracturing Experiment, by water tank 1 and air compressor 2 be external to respectively every
In membrane pump 3 and booster pump 4,6 one end of high-pressure conduit is connected to equipment body, one end connection water guide billet 7, water guide billet 7
It is placed between rock sample 8 and the loading termination of forcing press 9.Adjustment switch, air compressor 2 occur as the air pressure of compressed air
Device, there is provided initial gas pressure, this gas pressure are transmitted in booster pump 4 by high-pressure conduit 6, open booster pump 4, are increased
This big gas pressure, while promote fracturing fluid, the hydraulic pressure sizes such as the water of the offer of diaphragm pump 3 to measure and show by intelligence instrument 5,
There is through hole in water guide billet 7, through hole one end is connected with high-pressure conduit 6, and the other end is connected with 8 hole of Hydraulic Fracturing Tests rock sample,
Fracturing fluid can be made smoothly to enter inside test specimen, realization fracturing fluid is by test block pressure break and promotes crack propagation, to study waterpower
Fracture initiation, propagation law and mechanism.7 upper and lower surface of water guide billet is smooth, can be delivered to the vertical load of forcing press 9
Test block surface to simulate vertical confined pressure, if desired simulate other two to confined pressure when, then in other the two axial forcing presses that apply
It is axially loaded.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to embodiment will be apparent for those skilled in the art, as defined herein general
Principle can be realized in other embodiments without departing from the spirit or scope of the present invention, is not described in detail
Part, be the prior art, herein without repeating.Therefore, the present invention is not intended to be limited to these implementations shown in this article
Example, and it is to fit to the most wide scope consistent with principles disclosed herein and feature.
Claims (7)
- A kind of 1. hydraulic pressure apparatus for controlling of supply for Hydraulic Fracturing Experiment, it is characterised in that：Including diaphragm pump, booster pump and lead Water billet；The arrival end of the diaphragm pump is connected with water supply line, membrane pump outlet end and the outlet end pipe of the booster pump Road connects；Another outlet of the port of export of the booster pump passes through pressure duct and the conduit pipe pipeline of the water guide billet Connection, the water guide billet are removably placed in the surface of test piece in forcing press, and the booster pump is by the high pressure liquid after supercharging Body is sent to inside test specimen by the conduit pipe；The conduit pipe is equipped with bending in the water guide billet, and the arrival end of the conduit pipe deviates the water guide steel Backing plate center position setpoint distance, the conduit pipe port of export are located at the center of the water guide billet；The arrival end of the booster pump and the port of export pipeline connection of air compressor；The input terminal of the diaphragm pump and water tank pipeline connection.
- A kind of 2. hydraulic pressure apparatus for controlling of supply for Hydraulic Fracturing Experiment according to claim 1, it is characterised in that：Institute The cross section for stating water guide billet is consistent with the size of the test specimen contact surface.
- A kind of 3. hydraulic pressure apparatus for controlling of supply for Hydraulic Fracturing Experiment according to claim 1, it is characterised in that：Institute The upper and lower surface for stating water guide billet is smooth.
- A kind of 4. hydraulic pressure apparatus for controlling of supply for Hydraulic Fracturing Experiment according to claim 1, it is characterised in that：Institute It is 0-300MPa to state the pressure limit that booster pump is provided.
- A kind of 5. hydraulic pressure apparatus for controlling of supply for Hydraulic Fracturing Experiment according to claim 1, it is characterised in that：Institute Pressure duct is stated to be equipped with to observe and record the intelligence instrument of hydraulic pressure-time data.
- A kind of 6. hydraulic pressure apparatus for controlling of supply for Hydraulic Fracturing Experiment according to claim 5, it is characterised in that：Institute Intelligence instrument is stated to be equipped with to transmit recorded USB interface.
- 7. according to the test method of any hydraulic pressure apparatus for controlling of supply for Hydraulic Fracturing Experiment of claim 1-6, It is characterised in that it includes following steps：Step 1：The input terminal of diaphragm pump and booster pump is connected with water source and air compressor pipeline respectively, by the diaphragm pump The port of export be connected with the port of export pipeline of the booster pump；Step 2：Water guide billet is placed between test specimen and the loading termination of forcing press；The conduit pipe of the water guide billet It is connected with the port of export pipeline of the booster pump；Step 3：Start air compressor, initial gas pressure is provided for the booster pump, start booster pump and diaphragm pump, it is high The pressure size of press liquid shows that the highly pressurised liquid after supercharging is passed through the conduit pipe by the booster pump by intelligence instrument It is sent to inside test specimen, pressurizes so as to fulfill the highly pressurised liquid to the fracturing of test specimen；The air compressor, booster pump and every The unlatching of membrane pump in no particular order order.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814587.4A CN105352788B (en) | 2015-11-20 | 2015-11-20 | A kind of hydraulic pressure apparatus for controlling of supply and its test method for Hydraulic Fracturing Experiment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814587.4A CN105352788B (en) | 2015-11-20 | 2015-11-20 | A kind of hydraulic pressure apparatus for controlling of supply and its test method for Hydraulic Fracturing Experiment |
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| CN105352788A CN105352788A (en) | 2016-02-24 |
| CN105352788B true CN105352788B (en) | 2018-04-20 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108760515B (en) * | 2018-04-27 | 2020-09-08 | 中国石油天然气股份有限公司 | Experimental system and method for testing crack height expansion by loading stress |
| CN111141599B (en) * | 2020-03-09 | 2021-05-14 | 山东科技大学 | True triaxial hydraulic fracturing test method capable of adjusting fracturing hole direction |
| CN112665992B (en) * | 2020-12-17 | 2023-06-20 | 山东大学 | Pulse static pressure combined hydraulic fracturing method, test system and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4648810A (en) * | 1981-10-17 | 1987-03-10 | Barmag Barmer Maschinenfabrik Ag | Control apparatus for a positive displacement reciprocating pump |
| CN201706202U (en) * | 2010-02-01 | 2011-01-12 | 广东神洲化学工业有限公司 | Liquid material conveying device |
| CN203532382U (en) * | 2013-10-11 | 2014-04-09 | 中国地震局地壳应力研究所 | High-pressure fluid control system for hydraulic fracture in-situ stress measurement |
| CN103776703A (en) * | 2014-01-24 | 2014-05-07 | 山东大学 | Hydro-fracturing water injection loading device based on rock-like resin sample and test method |
| CN205103091U (en) * | 2015-11-20 | 2016-03-23 | 山东大学 | A water pressure supply control device for hydrofracturing experiment |
-
2015
- 2015-11-20 CN CN201510814587.4A patent/CN105352788B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4648810A (en) * | 1981-10-17 | 1987-03-10 | Barmag Barmer Maschinenfabrik Ag | Control apparatus for a positive displacement reciprocating pump |
| CN201706202U (en) * | 2010-02-01 | 2011-01-12 | 广东神洲化学工业有限公司 | Liquid material conveying device |
| CN203532382U (en) * | 2013-10-11 | 2014-04-09 | 中国地震局地壳应力研究所 | High-pressure fluid control system for hydraulic fracture in-situ stress measurement |
| CN103776703A (en) * | 2014-01-24 | 2014-05-07 | 山东大学 | Hydro-fracturing water injection loading device based on rock-like resin sample and test method |
| CN205103091U (en) * | 2015-11-20 | 2016-03-23 | 山东大学 | A water pressure supply control device for hydrofracturing experiment |
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| CN105352788A (en) | 2016-02-24 |
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