CN106338456A - Self-suspension proppant suspension performance detection method - Google Patents
Self-suspension proppant suspension performance detection method Download PDFInfo
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- CN106338456A CN106338456A CN201610760881.6A CN201610760881A CN106338456A CN 106338456 A CN106338456 A CN 106338456A CN 201610760881 A CN201610760881 A CN 201610760881A CN 106338456 A CN106338456 A CN 106338456A
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- clear water
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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 invention provides a self-suspension proppant suspension performance detection method. A container with an upper end opening is included, a gas agglomeration plate is arranged in the container and located at the bottom of the container, a hollow cavity is formed in the gas agglomeration plate, and a vent hole is formed in the upper end face of the gas agglomeration plate and communicated with the hollow cavity of the gas agglomeration plate. A ventilation pipe is arranged on the gas agglomeration plate, and the ventilation pipe is communicated with the hollow cavity of the gas agglomeration plate. Self-suspension proppant particles make contact with a lot of fine and uniform bubbles in clean water, the bubbles in the water are adsorbed to the surfaces of the proppant particles, so the volume occupied by the self-suspension proppant particles in the water is increased, buoyancy force borne by the self-suspension proppant particles is combined with the volume, buoyancy force borne by the self-suspension proppant particles is increased, and accordingly in the testing state, the suspension state of the self-suspension proppant particles is closer to an actual use state.
Description
Technical field
The present invention relates to a kind of detection method of proppant is and in particular to one kind is from suspended prop suspendability detection side
Method.
Background technology
During petroleum gas deep mining, Fracturing is that current oil and gas industry improves Oil/gas Well product
One of major measure of amount, the physical and chemical performance of proppant directly affects its effect of increasing production.Proppant is mixed into fracturing fluid and injects
In the crack of deep layer rock, proppant forms the filling or support for keeping and opening crack at crack, supports crack
Form high osmosis crude oil flow passage, keep that crude oil is smooth passes through, oil well oil production potential can be excavated to greatest extent.
In order to complete to place proppant inside crack, need proppant particles suspend in fracturing fluid fluid, so that
Fracturing fluid containing suspension proppant is sent in Oil/gas Well by high-pressure pump by pressing crack construction process, and reaches pressure break and apply
In crack manufactured by work.But traditional fracturing fluid be need add in water substantial amounts of thickening agent (water soluble polymer) with
Just increase the viscoelasticity of its own so as to the bigger proppant particles thing of apparent density relatively can be carried.Accordingly, there exist construction technology
The complicated, wretched insufficiency such as pressure break is relatively costly, reservoir is damaged.
Give the characteristic that existing proppant can not sink immediately in water float, it will be made directly to be suspended in water,
Formed from suspended prop, without adding thickening agent in water to form the fracturing fluid of larger viscoelasticity, this is current pressure
Split a field that can look forward to of proppant technology development.From suspended prop surface can hydrated molecule meet water Fast-swelling,
Form firm hydrated sheath around proppant kernel.The appearance of hydrated sheath reduces density in water for the proppant, increased
Lubricity between proppant.Simultaneously, a small amount of organic molecule of proppant surface is stretched in aqueous solution, increased the glutinous of water
Degree.Both synergism are not so that just can suspend for a long time easily by thickening agent from suspended prop in clear water.
But how to evaluate and judge that the ability that floating (from suspending) in clear water for the different proppants is not sunk is always
One difficult problem.Current test from suspended prop from the method for suspension be weigh a certain amount of from suspended proppant particles thing,
Directly pour the suspended particulate substance amount ratio observing in clear water in clear water into；Or impose mechanical agitation power on the basis of the former
Static afterwards, observe the suspended particulate substance amount ratio in clear water；Furthermore exactly after pouring in clear water from suspended prop, experiment will be held
Device is airtight and carries out static after upper and lower shake certain time or number of times, observes the suspended particulate substance amount ratio in clear water.
Existing method of testing there is many unreliabilities so that the result of test has larger deviation.Analysis is former
Cause, is because, in test, being added in clear water and can not fully reacting with water immediately from suspended prop, realize from suspension support
The volumetric expansion of agent itself is it is impossible to be really achieved the state of suspension.
Content of the invention
It is an object of the invention to provide one kind is from suspended prop suspendability detection method, by certain compensation side
Formula, in shorter testing time section, solves can not fully react with water immediately from suspended prop and realize the volume of itself
Expansion leads to the insecure problem of test result.
For reaching above-mentioned purpose, the technical scheme is that and comprise the steps:
The first step, the injected clear water in detection container；
Second step, blasts air in the clear water being contained to detection container, forms bubble in clear water；
3rd step, add in detection container to be detected from suspended prop, to be detected enters clear water from suspended prop
In；
4th step, stops blasting air in the clear water being contained to detection container；
5th step, from suspended prop, the suspension amount in clear water accounts for the percentage ratio adding total amount for detection.
During using technique scheme, container can be used to contain clear water, and during detection, whole gas gathers plate and is submerged in appearance
In the clear water holding in device.It is passed through gas in breather, compressed air is sent into the gas collection of container bottom by breather
In poly- plate, compressed gas by gas gather plate carry out allocating some the plate face of plate upper end from gathering positioned at gas all after pressure
Individual passage is blown in the clear water in container, produces a large amount of, uniform bubble.Be added in clear water from suspended proppant particles
Thing can be with the bubble contact of fine uniform a large amount of in clear water, by the collective effect of the surface and interface power of gas, liquid, solid three phase boundary
Under, on the one hand contact generation occupation time process with water body liquid interface from the solid interface of suspended proppant particles thing and produce buoyancy,
On the other hand generation gas-solid interface power is contacted with bubble gas phase interface substantial amounts of in water body.Bubble in water body adsorbs in proppant
Increasing on surface particles makes to be subject to from suspended proppant particles thing from the water body occupy-place volume of suspended proppant particles thing
Buoyancy is superimposed with it, increases from the buoyancy that suspended proppant particles thing is subject to so that from suspended prop in the state of testing
The suspended state of particulate matter is closer to actual use state.Being added in water body from suspended proppant particles thing can be because certainly
Body amasss occupy-place and arranges the water body of same volume, thus results from the rightabout buoyancy of gravity, in this buoyancy
Centrifugal force is counteracted, thus causing fall rate to slow down, when buoyancy is identical with centrifugal force from suspension support under effect
Agent particulate matter is just stagnated sinking and is shown as floating (from suspending) state；Secondly, surface particles when just contacting with water body because of
The cohesiveness of homophase material is not different can produce different interfacial forces, solid liquid interface, liquid gas interface, gas-solid circle in contact interface
Face and gas, liquid, solid interface simultaneous interface cohesion point all can because of surface and interface between amount of force is different, direction
Different and produce different size, different directions make a concerted effort so that from suspended proppant particles thing dispersion state in the liquid phase not
With.Solve and add from suspended proppant particles thing the detection that can not react self volumetric expansion in clear water immediately with clear water difficult
Topic.Compare and will directly pour water body into from suspended proppant particles thing or pour floating (from the suspending) effect being stirred during water body into
Really, the test of the present invention is better.
Improvement project further, described detection container is 250 milliliters of beakers.
Improvement project further, the clear water adding in described second step is 120 milliliters.
Improvement project further, the compressed air pressure blasting in described second step is 0.05 to 0.3mpa.
Further improvement project, add in described 3rd step 30 grams to be detected from suspended prop.
Further improvement project, described 4th step stop blasting air be add to be detected from suspended prop 30 seconds
Afterwards.
Improvement project further, draws detection knot by the percentage ratio that detection mattress highly accounts for total amount in described 5th step
Really.
Brief description
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description:
Fig. 1 is the structural representation of detecting instrument in the embodiment of the present invention 1；
Fig. 2 is the overlooking the structure diagram that in Fig. 1, gas gathers plate；
Fig. 3 is the detection view of Fig. 1；
Fig. 4 is the structural representation of detecting instrument in the embodiment of the present invention 2.
Specific embodiment
Reference: container 1, gas gathers plate 2, passage 21, breather 22, and bubble 3, from suspended proppant particles thing
4, rabbling mechanism 5.
Embodiment 1
As illustrated in figs. 1 and 2, detecting instrument used in from suspended prop suspendability detection method for the present invention, include
One transparent container 1, container 1 can be made of glass material.The upper end open of container 1, bottom lock.Place in container 1
There is a gas to gather plate 2, it is hollow structure that gas gathers plate 2, the upper surface that gas gathers plate 2 offers several and leads to
Pore 21.Passage 21 gathers the hollow cavity in plate 2 with gas and connects.Gather in gas and a breather is fixed with plate 2
22, the hollow cavity that breather 22 is also gathered with gas in plate 2 connects, and ensure that and be passed into gas collection in breather 22
Gas in poly- plate 2 can be discharged from passage 21.
The present invention is as follows from suspended prop suspendability detection method, gas is gathered plate 2 and puts in container 1, toward appearance
Clear water can be injected into the half position of container 1 height by injected clear water in device 1.It is passed through compressed air to breather 22, adjustment
Compressed air pressure to 0.05 to 0.3mpa, the compressed air require being passed through per minute at 1 to 100 liter, compressed air pass through gas
The passage 21 that body gathers on plate 2 forms bubble 3 and enters in the clear water of container 1.Treat that the bubble 3 in clear water is in all even more steady
After the fixed rate of climb, add from suspended proppant particles, and stop after timing 30 seconds blasting compressed air, then detection is from outstanding
The mattress of floating proppant particles highly accounts for the percentage ratio of total amount；Or detection suspension amount in clear water from suspended proppant particles
Account for the percentage ratio adding total amount.
As shown in figure 3, compressed air is gathered in plate 2 by the gas that breather 22 sends into container 1 bottom, compressed gas
Blow from gathering several passages 21 plate 2 upper end plate face positioned at gas all after pressure gathering plate 2 and carrying out allocating by gas
Enter in the clear water in container 1, produce a large amount of, uniform bubble 3.These bubbles 3 are arranged laggard to the upper end of container 1 through clear water layer
Enter in the air.After the clear underwater bubble 3 of aforesaid receptacle 1 is in stable condition, a certain amount of suspension certainly is added by container 1 upper end open
Proppant particles thing 4, these add from suspended proppant particles thing 4 enter clear water in contact with water body, simultaneously also with clear water
In the bubble 3 of a large amount of fine uniform 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 thing 4 contact with water body liquid interface generation occupation time process produce buoyancy, on the other hand with
In water body, substantial amounts of bubble 3 gas phase interface contact produces gas-solid interface power.Bubble in water body adsorbs in proppant particles thing table
Increase on face from the water body occupy-place volume of suspended proppant particles thing 4 make the buoyancy that is subject to from suspended proppant particles thing 4 with
Its superposition, increases from the buoyancy that suspended proppant particles thing 4 is subject to so that from suspended proppant particles thing in the state of testing
4 suspended state is closer to actual use state.
It is added in water body and can arrange the water of same volume because of own vol occupy-place from suspended proppant particles thing 4
Body, thus results from the rightabout buoyancy of gravity, counteracts centrifugal force in the presence of this buoyancy, thus causing
Fall rate slows down, and just stagnates sinking when buoyancy is identical with centrifugal force from suspended proppant particles thing 4 and shows as floating
(from suspending) state；Secondly, surface particles can connect because the cohesiveness of homophase material is not different when just contacting with water body
Tactile interface produces 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 because of surface and interface between amount of force is different, direction is different and produce different size, different directions
Make a concerted effort so that disperseing state in the liquid phase different from suspended proppant particles thing 4.
Solve and add, from suspended proppant particles thing 4, the inspection that self volumetric expansion can not be reacted in clear water immediately with clear water
Survey a difficult problem.Compare and will directly pour floating that water body or pour into stirred during water body into (from outstanding from suspended proppant particles thing 4
Floating) effect, the test of the present invention is better.
Embodiment 2
As shown in figure 4, detecting instrument used in from suspended prop suspendability detection method for the present invention, include one thoroughly
Bright container 1, container 1 can be made of glass material.The upper end open of container 1, bottom lock.It is placed with one in container 1
Gas gathers plate 2, and it is hollow structure that gas gathers plate 2, offers several passages on the upper surface that gas gathers plate 2
21.Passage 21 gathers the hollow cavity in plate 2 with gas and connects.Gather in gas and a breather 22 is fixed with plate 2, lead to
The hollow cavity that trachea 22 is also gathered with gas in plate 2 connects, and ensure that being passed into gas in breather 22 gathers plate 2
In gas can discharge from passage 21.In addition, in the container 1, also a upper end open from container 1 extends downwardly into appearance
Rabbling mechanism 5 in device 1, rabbling mechanism 5 carries out relative motion, rabbling mechanism 5 by gathering the upper surface of plate 2 with respect to gas
On blade skim over the top that gas gathers plate 2.
The present invention is as follows from suspended prop suspendability detection method, gas is gathered plate 2 and puts in container 1, toward appearance
Clear water can be injected into the half position of container 1 height by injected clear water in device 1.It is passed through compressed air to breather 22, adjustment
Compressed air pressure to 0.05 to 0.3mpa, the compressed air require being passed through per minute at 1 to 100 liter, compressed air pass through gas
The passage 21 that body gathers on plate 2 forms bubble 3 and enters in the clear water of container 1.Rotate rabbling mechanism 5, rotating speed is per minute 3
To 80 turns, it is in after all even more stable rate of climb after the bubble 3 in clear water, adds from suspended proppant particles, and timing
Stop after 30 seconds blasting compressed air and stop stirring, then detect and highly account for the hundred of total amount from the mattress of suspended proppant particles
Divide ratio；Or from suspended proppant particles, the suspension amount in clear water accounts for the percentage ratio adding total amount for detection.
Compressed air is gathered in plate 2 by the gas that breather 22 sends into container 1 bottom, compressed gas are by gas
Gather plate 2 and carry out allocating and be blown in container 1 from gathering several passages 21 plate 2 upper end plate face positioned at gas all after pressure
In clear water, produce a large amount of, uniform bubble 3.These bubbles 3 are arranged through clear water layer and are got into the air to after the upper end of container 1.?
After the clear underwater bubble 3 of aforesaid receptacle 1 is in stable condition, by container 1 upper end open add a certain amount of from suspended proppant particles
Thing 4, entering in clear water from suspended proppant particles thing 4 that these add is contacted with water body, simultaneously also tiny in a large number with 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 generation occupation time process and produces buoyancy with water body liquid interface, on the other hand a large amount of with water body
Bubble 3 gas phase interface contact produce gas-solid interface power.Bubble absorption in water body increases on proppant particles thing surface
So that the buoyancy being subject to from suspended proppant particles thing 4 is superimposed with it from the water body occupy-place volume of suspended proppant particles thing 4, increase
From the buoyancy that suspended proppant particles thing 4 is subject to so that from the suspended state of suspended proppant particles thing 4 in the state of test
Closer to actual use state.Solve and add in clear water and can not react with clear water immediately from suspended proppant particles thing 4
A detection difficult problem for self volumetric expansion.Compare and will directly pour water body into from suspended proppant particles thing 4 or pour into during water body in addition
Floating (from the suspending) effect of stirring, the test of the present invention is better.In addition, rabbling mechanism 5 effect under, water body can because
The different water body vorticities of the different the generations different with structure of rabbling mechanism 5 of the rotating speed of rabbling mechanism 5, different vorticity
Reynolds index difference can cause can not with the relative movement speed of water body and contact area from suspended proppant particles thing 4
Same, which produces another one effect it is simply that the flotation time in water body is considerably longer than it from suspended proppant particles thing 4
Accelerate while his detection method and enter with water body from the resin correlation water reactive component of suspended proppant particles thing 4 outer surface
The speed of row chemical reaction and total scale of construction.Solve and need one section to react generation with water in water from suspended proppant particles thing 4
Volumetric expansion is not enough and from the bad technical barrier of suspension effect.So, using this detecting instrument from suspended proppant particles
In thing 4 adition process existing gas, liquid, solid three-phase exist simultaneously with mechanical agitation environment under significantly change from suspension effect
Kind, it is favorably improved the accuracy of suspendability detection.
Above-described is only the preferred embodiment of the present invention it is noted that for a person skilled in the art,
Without departing from the inventive concept of the premise, some deformation can also be made and improve, for example: container 1 can select 250 milliliters
Beaker, add beaker in clear water amount can be 120 milliliters, the rotating speed of rabbling mechanism 5 at 3 to 80 turns per minute, add burn
The weight from suspended proppant particles thing 4 being detected in cup is 30 grams.
These also should be considered as protection scope of the present invention, these effects implemented all without the impact present invention and patent
Practicality.The technology of the omitted description of the present invention, shape, construction part are known technology.
Claims (7)
1., from suspended prop suspendability detection method, it is characterized in that, comprise the steps:
The first step, the injected clear water in detection container；
Second step, blasts air in the clear water being contained to detection container, forms bubble in clear water；
3rd step, add in detection container to be detected from suspended prop, to be detected enters clear water from suspended prop
In；
4th step, stops blasting air in the clear water being contained to detection container；
5th step, from suspended prop, the suspension amount in clear water accounts for the percentage ratio adding total amount for detection.
2. according to claim 1 it is characterized in that from suspended prop suspendability detection method, described detection container is
250 milliliters of beakers.
3. according to claim 1 it is characterized in that from suspended prop suspendability detection method, in described second step plus
The clear water entering is 110～130 milliliters.
4. according to claim 1 it is characterized in that from suspended prop suspendability detection method, in described second step drum
The compressed air pressure entering is 0.05 to 0.3mpa.
5. according to claim 3 it is characterized in that from suspended prop suspendability detection method, in described 3rd step plus
Enter 30 grams to be detected from suspended prop.
6. according to claim 1 it is characterized in that from suspended prop suspendability detection method, described 4th step stop
Blast air be add to be detected from after suspended prop 30 seconds.
7. according to claim 1 it is characterized in that from suspended prop suspendability detection method, logical in described 5th step
Cross detection mattress and highly account for the percentage ratio of total amount and draw testing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN106338456A true CN106338456A (en) | 2017-01-18 |
| CN106338456B CN106338456B (en) | 2018-11-02 |
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| CN201610760881.6A Active CN106338456B (en) | 2016-08-30 | 2016-08-30 | From suspended prop suspendability detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| 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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| Publication number | Publication date |
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| CN106338456B (en) | 2018-11-02 |
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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 |