CN106338456B - From suspended prop suspendability detection method - Google Patents
From suspended prop suspendability detection method Download PDFInfo
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- CN106338456B CN106338456B CN201610760881.6A CN201610760881A CN106338456B CN 106338456 B CN106338456 B CN 106338456B CN 201610760881 A CN201610760881 A CN 201610760881A CN 106338456 B CN106338456 B CN 106338456B
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- suspended
- gas
- clear water
- proppant particles
- suspended prop
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
Abstract
The present invention is from suspended prop suspendability detection method, container including upper end opening, gather plate equipped with gas in container, gas gathers the bottom that plate is located at container, gas, which gathers, is equipped with hollow cavity in plate, the upper surface that gas gathers plate offers venthole, and the hollow cavity that venthole gathers plate with gas is connected to；Gas gathers plate and is equipped with snorkel, and the hollow cavity that snorkel gathers plate with gas is connected to.The bubble contact of a large amount of fine uniforms from suspended proppant particles object and clear water, bubble in water body, which is adsorbed on to be increased on proppant particles object surface from the water body occupy-place volume of suspended proppant particles object, makes the buoyancy being subject to from suspended proppant particles object be superimposed with it, increase the buoyancy being subject to from suspended proppant particles object so that from the suspended state of suspended proppant particles object closer to actual use state in the state of test.
Description
Technical field
The present invention relates to a kind of detection methods of proppant, and in particular to a kind of from suspended prop suspendability detection side
Method.
Background technology
When petroleum gas deep mining, Fracturing is that current oil and gas industry improves oil/gas well production
The physical and chemical performance of one of major measure of amount, proppant directly affects its effect of increasing production.Proppant is mixed into fracturing fluid and is injected
In the crack of deep layer rock, proppant forms the filling or support for keeping and opening crack at crack, supports crack
High osmosis crude oil flow channel is formed, keeps that crude oil is smooth to be passed through, oil well oil production potential can be excavated to the maximum extent.
In order to complete to place proppant inside crack, need to suspend proppant particles in fracturing fluid fluid, so as to
The fracturing fluid containing suspension proppant is reached by being pumped by oil/gas well in pressing crack construction process, and reaches pressure break and applies
In crack manufactured by work.But traditional fracturing fluid be need to be added in water a large amount of thickener (water soluble polymer) with
Just the viscoelasticity for increasing its own makes it that can carry the proppant particles object of opposite apparent density bigger.Accordingly, there exist construction technologies
It is complicated, pressure break cost is higher, wretched insufficiencies are damaged etc. to reservoir.
The characteristic that existing proppant can in water be floated without sinking immediately is assigned, it will be made directly to suspend in water,
It is formed from suspended prop, without adding thickener in water to form the fracturing fluid of larger viscoelasticity, this is to press now
Split a field that can be looked forward to of proppant technology development.From suspended prop surface can hydrated molecule meet water Fast-swelling,
Firm hydrated sheath is formed around proppant kernel.The appearance of hydrated sheath reduces the density of proppant in water, increases
Lubricity between proppant.At the same time, a small amount of organic molecule of proppant surface is stretched in aqueous solution, increases the glutinous of water
Degree.The synergistic effect of the two so that can suspend for a long time in clear water easily not by thickener from suspended prop.
But how to evaluate and judge that the ability that floating of the different proppants in clear water is not sunk (from suspending) is always
One problem.Current test from suspended prop from the method for suspension be weigh it is a certain amount of from suspended proppant particles object,
Directly pour into suspended particulate substance quantity of the observation in clear water in clear water；Mechanical agitation power is either imposed on the basis of the former
It is static afterwards, observe the suspended particulate substance quantity in clear water；Furthermore it is exactly to hold experiment after being poured into clear water from suspended prop
Device is closed and carries out static, the suspended particulate substance quantity in observation clear water after shake certain time up and down or number.
There are many unreliabilities for existing test method so that the result of test has larger deviation.Analysis is former
Cause is added in clear water and cannot be fully reacted with water immediately from suspended prop, realized from suspension support because in test
The volume expansion of agent itself cannot be really achieved the state of suspension.
Invention content
The purpose of the present invention is to provide one kind from suspended prop suspendability detection method, passes through certain compensation side
Formula, in shorter testing time section, solution cannot fully react with water from suspended prop and realize the volume of itself immediately
Expansion leads to the insecure problem of test result.
In order to achieve the above objectives, the technical scheme is that：Include the following steps：
The first step, the injected clear water into detection container；
Second step blasts air in the clear water contained to detection container, forms bubble in clear water；
Third walks, be added into detection container it is to be detected from suspended prop, it is to be detected to enter from suspended prop
In clear water；
4th step stops blasting air in the clear water contained to detection container；
5th step detects the percentage for being accounted for from suspension amount of the suspended prop in clear water and total amount being added.
When using above-mentioned technical proposal, container can be used for containing clear water, and when detection, entire gas gathers plate and is submerged in appearance
In the clear water held in device.It is passed through gas into snorkel, compressed air is sent into the gas collection of container bottom by snorkel
In poly- plate, compressed gas is several in the plate face of plate upper end from gathering positioned at gas after gathering plate by gas and being allocated pressure
A venthole is blown into the clear water in container, generates a large amount of, uniform bubble.Be added in clear water from suspended proppant particles
Object can pass through the collective effect of the surface and interface power of gas, liquid, solid three phase boundary with the bubble contact of a large amount of fine uniforms in clear water
Under, it is on the one hand contacted from the solid interface of suspended proppant particles object with water body liquid interface and generates occupation time process generation buoyancy,
On the other hand it is contacted with a large amount of bubble gas phase interface in water body and generates gas-solid interface power.Bubble in water body is adsorbed on proppant
Being increased on surface particles from the water body occupy-place volume of suspended proppant particles object makes to be subject to from suspended proppant particles object
Buoyancy is superimposed with it, increases the buoyancy being subject to from suspended proppant particles object so that from suspended prop in the state of test
The suspended state of particulate matter is closer to actual use state.Being added in water body from suspended proppant particles object can be because certainly
Body accumulates occupy-place and arranges the water body of same volume, the buoyancy of gravity opposite direction is thus resulted from, in this buoyancy
Centrifugal force is counteracted under effect, to cause fall rate to slow down, when buoyancy is identical as centrifugal force from suspension support
Agent particulate matter just stagnates sinking and shows as floating (from suspending) state；Secondly, surface particles when just being contacted with water body because
The cohesive force difference of different phase substances can generate different interfacial forces, solid liquid interface, liquid gas interface, gas-solid circle in contact interface
The simultaneous interface cohesion point in face and gas, liquid, solid interface all can be because of the amount of force difference between surface and interface, direction
It is different and generate different size, the resultant force of different directions so that not from suspended proppant particles object dispersion state in the liquid phase
Together.Solves the detection hardly possible for being added in clear water from suspended proppant particles object and cannot reacting self volume expansion with clear water immediately
Topic.Compare floating (from the suspending) effect that will directly pour into water body from suspended proppant particles object or while pouring into water body is stirred
Fruit, test of the invention are better.
It is further improved scheme, the detection container is 250 milliliters of beakers.
It is further improved scheme, the clear water being added in the second step is 120 milliliters.
It is further improved scheme, the compressed air pressure blasted in the second step is 0.05 to 0.3Mpa.
Be further improved scheme, be added in the third step 30 grams it is to be detected from suspended prop.
Be further improved scheme, the 4th step stopping blast air be be added it is to be detected from suspended prop 30 seconds
Afterwards.
It is further improved scheme, the percentage for accounting for total amount in the 5th step by detecting mattress height obtains detection knot
Fruit.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments：
Fig. 1 is the structural schematic diagram of detecting instrument in the embodiment of the present invention 1；
Fig. 2 is the overlooking structure diagram that gas gathers plate in Fig. 1；
Fig. 3 is the detecting state schematic diagram of Fig. 1；
Fig. 4 is the structural schematic diagram of detecting instrument in the embodiment of the present invention 2.
Specific implementation mode
Reference numeral：Container 1, gas gather plate 2, venthole 21, snorkel 22, bubble 3, from suspended proppant particles object
4, rabbling mechanism 5.
Embodiment 1
As illustrated in figs. 1 and 2, detecting instrument of the present invention used in the suspended prop suspendability detection method, packet
A transparent container 1 is included, container 1 can be made of glass material.The upper end opening of container 1, bottom lock.In container 1
Gas gathers plate 2 there are one placing, and it is hollow structure that gas, which gathers plate 2, is offered on the upper surface that gas gathers plate 2 several
A venthole 21.Venthole 21 gathers the hollow cavity in plate 2 with gas and is connected to.It is logical there are one gathering and fixed on plate 2 in gas
Tracheae 22, the hollow cavity that snorkel 22 also gathers with gas in plate 2 are connected to, and can ensure to be passed into gas in snorkel 22
Body, which gathers the gas in plate 2, to be discharged from venthole 21.
The present invention is as follows from suspended prop suspendability detection method, and gas, which is gathered plate 2, to be put into container 1, toward appearance
Clear water can be injected into the half position of 1 height of container by injected clear water in device 1.It is passed through compressed air to snorkel 22, is adjusted
Compressed air pressure is to 0.05 to 0.3Mpa, and the compressed air require being passed through is per minute at 1 to 100 liter, and compressed air passes through gas
Body gathers the formation bubble 3 of the venthole 21 on plate 2 and enters in the clear water of container 1.Wait for the bubble 3 in clear water in uniform relatively steady
It after the fixed rate of climb, is added from suspended proppant particles, and timing stops blasting compressed air after 30 seconds, then detection is from outstanding
The mattress height of floating proppant particles accounts for the percentage of total amount；Or suspension amount of the detection from suspended proppant particles in clear water
Account for the percentage that total amount is added.
As shown in figure 3, the gas that compressed air is sent into 1 bottom of container by snorkel 22 gathers in plate 2, compressed gas
It is blown after gathering plate 2 by gas and being allocated pressure from gathering several ventholes 21 in 2 upper end plate face of plate positioned at gas
Enter in the clear water in container 1, generates a large amount of, uniform bubble 3.These bubbles 3 are arranged laggard to the upper end of container 1 across clear water layer
Enter in air.After 1 clear underwater bubble 3 of aforesaid receptacle is in stable condition, pass through 1 upper end opening of container be added it is a certain amount of from suspending
Proppant particles object 4, what these were added, which enter from suspended proppant particles object 4 in clear water, contacts with water body, at the same also with clear water
In the bubbles 3 of a large amount of fine uniforms contact, under the collective effect by the surface and interface power of gas, liquid, solid three phase boundary, on the one hand from
The solid interface of suspended proppant particles object 4 contacted with water body liquid interface generate occupation time process generate buoyancy, on the other hand with
The contact of 3 gas phase interface of a large amount of bubble generates gas-solid interface power in water body.Bubble in water body is adsorbed on proppant particles object table
Increased on face from the water body occupy-place volume of suspended proppant particles object 4 make the buoyancy being subject to from suspended proppant particles object 4 with
It is superimposed, and increases the buoyancy being subject to from suspended proppant particles object 4 so that from suspended proppant particles object in the state of test
4 suspended state is closer to actual use state.
The water of same volume can be arranged because of own vol occupy-place by being added to from suspended proppant particles object 4 in water body
Thus body results from the buoyancy of gravity opposite direction, centrifugal force is counteracted under the action of this buoyancy, to cause
Fall rate slows down, and just stagnates to sink to showing as floating from suspended proppant particles object 4 when buoyancy is identical as centrifugal force
(from suspending) state；Secondly, cohesive force difference of the surface particles when just being contacted from water body because of different phase substances can connect
Tactile interface generates different interfacial forces, and solid liquid interface, liquid gas interface, gas-solid interface and gas, liquid, solid interface are simultaneous
Interface cohesion point all can, direction different because of the amount of force between surface and interface it is different and generate different size, different directions
With joint efforts so that different from the state of the dispersion of suspended proppant particles object 4 in the liquid phase.
Solves the inspection for being added in clear water from suspended proppant particles object 4 and cannot reacting self volume expansion with clear water immediately
Survey problem.Water body will directly be poured into or floating that while pouring into water body is stirred is (from outstanding from suspended proppant particles object 4 by comparing
It is floating) effect, test of the invention is better.
Embodiment 2
As shown in figure 4, detecting instrument of the present invention used in the suspended prop suspendability detection method, includes one
A transparent container 1, container 1 can be made of glass materials.The upper end opening of container 1, bottom lock.It is placed in container 1
One gas gathers plate 2, and it is hollow structure that gas, which gathers plate 2, several ventilations are offered on the upper surface that gas gathers plate 2
Hole 21.Venthole 21 gathers the hollow cavity in plate 2 with gas and is connected to.Gather in gas and fixed on plate 2 there are one snorkel 22,
The hollow cavity that snorkel 22 also gathers with gas in plate 2 is connected to, and can ensure that being passed into gas in snorkel 22 gathers
Gas in plate 2 can be discharged from venthole 21.In addition, in the container 1, there are one stretch downwards from the upper end opening of container 1
Enter the rabbling mechanism 5 in container 1, rabbling mechanism 5 carries out relative motion, stirring by gathering the upper surface of plate 2 relative to gas
Blade in mechanism 5 skims over the top that gas gathers plate 2.
The present invention is as follows from suspended prop suspendability detection method, and gas, which is gathered plate 2, to be put into container 1, toward appearance
Clear water can be injected into the half position of 1 height of container by injected clear water in device 1.It is passed through compressed air to snorkel 22, is adjusted
Compressed air pressure is to 0.05 to 0.3Mpa, and the compressed air require being passed through is per minute at 1 to 100 liter, and compressed air passes through gas
Body gathers the formation bubble 3 of the venthole 21 on plate 2 and enters in the clear water of container 1.Rabbling mechanism 5 is rotated, rotating speed is per minute 3
To 80 turns, after the bubble 3 in clear water is in the uniform relatively stable rate of climb, it is added from suspended proppant particles, and timing
Stop blasting compressed air after 30 seconds and stop stirring, then detects from the mattress height of suspended proppant particles and account for the hundred of total amount
Divide ratio；Or detection accounts for the percentage that total amount is added from suspension amount of the suspended proppant particles in clear water.
The gas that compressed air is sent into 1 bottom of container by snorkel 22 gathers in plate 2, and compressed gas is passing through gas
Gather after plate 2 is allocated pressure and is blown into container 1 from gathering several ventholes 21 in 2 upper end plate face of plate positioned at gas
In clear water, a large amount of, uniform bubble 3 is generated.These bubbles 3 are arranged across clear water layer and are got into the air behind the upper end of container 1.?
After 1 clear underwater bubble 3 of aforesaid receptacle is in stable condition, it is added by 1 upper end opening of container a certain amount of from suspended proppant particles
Object 4, what these were added, which enter from suspended proppant particles object 4 in clear water, contacts with water body, at the same also with it is a large amount of tiny in clear water
Uniform bubble 3 contacts, under the collective effect by the surface and interface power of gas, liquid, solid three phase boundary, on the one hand from suspended prop
The solid interface of particulate matter 4 is contacted with water body liquid interface to be generated occupation time process and generates buoyancy, on the other hand with it is a large amount of in water body
3 gas phase interface of bubble contact generate gas-solid interface power.Bubble in water body is adsorbed on proppant particles object surface and increases
So that the buoyancy being subject to from suspended proppant particles object 4 is superimposed with it from the water body occupy-place volume of suspended proppant particles object 4, increases
The buoyancy being subject to from suspended proppant particles object 4 so that in the state of test from the suspended state of suspended proppant particles object 4
Closer to actual use state.It solves and is added in clear water and cannot be reacted with clear water immediately from suspended proppant particles object 4
The detection problem of self volume expansion.Water body will directly be poured into from suspended proppant particles object 4 or be subject to when pouring into water body by comparing
Floating (from suspending) effect of stirring, test of the invention are better.In addition, rabbling mechanism 5 effect under, water body can because
The rotating speed difference of rabbling mechanism 5 generates different water body vorticities, different vorticities with the structure difference of rabbling mechanism 5
Reynolds index difference can cause can not from the relative movement speed and contact area of suspended proppant particles object 4 and water body
Together, which produces another effects, are exactly considerably longer than it from flotation time of the suspended proppant particles object 4 in water body
Accelerated while his detection method from the resin correlation water reactive component of 4 outer surface of suspended proppant particles object and water body into
The rate and total scale of construction of row chemical reaction.Solve from suspended proppant particles object 4 needs to react a generation with water in water
Volume expansion is insufficient and from the bad technical barrier of suspension effect.So using this detecting instrument from suspended proppant particles
Existing gas, liquid, solid three-phase is existed simultaneously in 4 adition process of object changes under mechanical agitation environment from suspension effect significantly
It is kind, help to improve the accuracy of suspendability detection.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the inventive concept of the premise, several modifications and improvements can also be made, such as：Container 1 can select 250 milliliters
Beaker, be added beaker in clear water amount can be 120 milliliters, the rotating speed of rabbling mechanism 5 at 3 to 80 turns per minute, be added burn
The weight from suspended proppant particles object 4 being detected in cup is 30 grams.
These should also be considered as protection scope of the present invention, these all do not interfere with the effect implemented and patent of the invention
Practicability.The technology, shape, construction part that the present invention omits description are known technology.
Claims (7)
1. from suspended prop suspendability detection method, characterized in that include the following steps：
The first step, the injected clear water into detection container；
Second step blasts air in the clear water contained to detection container, forms bubble in clear water；
Third walk, be added into detection container it is to be detected from suspended prop, it is to be detected to enter clear water from suspended prop
In；
4th step stops blasting air in the clear water contained to detection container；
5th step detects the percentage for being accounted for from suspension amount of the suspended prop in clear water and total amount being added.
2. according to claim 1 from suspended prop suspendability detection method, characterized in that the detection container is
250 milliliters of beakers.
3. according to claim 1 from suspended prop suspendability detection method, characterized in that add in the second step
The clear water entered is 110~130 milliliters.
4. according to claim 1 from suspended prop suspendability detection method, characterized in that drum in the second step
The compressed air pressure entered is 0.05 to 0.3Mpa.
5. according to claim 3 from suspended prop suspendability detection method, characterized in that add in the third step
Enter 30 grams it is to be detected from suspended prop.
6. according to claim 1 from suspended prop suspendability detection method, characterized in that the 4th step stops
It is to be detected from after suspended prop 30 seconds in addition to blast air.
7. according to claim 1 from suspended prop suspendability detection method, characterized in that lead in the 5th step
It crosses detection mattress height and accounts for the percentage of total amount and obtain testing result.
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|---|---|---|---|
| CN201610760881.6A CN106338456B (en) | 2016-08-30 | 2016-08-30 | From suspended prop suspendability detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610760881.6A CN106338456B (en) | 2016-08-30 | 2016-08-30 | From suspended prop suspendability detection method |
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| CN106338456A CN106338456A (en) | 2017-01-18 |
| CN106338456B true CN106338456B (en) | 2018-11-02 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109164001A (en) * | 2018-09-30 | 2019-01-08 | 重庆长江造型材料（集团）股份有限公司 | One kind is from suspension riverfrac treatment proppant test method |
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Address after: 400709 No. 6 Wuxing Middle Road, Tongjiaxi Town, Beibei District, Chongqing Patentee after: Chongqing Changjiang moulding material (Group) Limited by Share Ltd Address before: 401320 Fengqi Road, Caijiagang Town, Beibei District, Chongqing Patentee before: Chongqing Changjiang moulding material (Group) Limited by Share Ltd |