CN109423270A - A kind of increasing stick type magnetism of beneficial Crack Monitoring is from suspended prop and preparation method thereof - Google Patents
A kind of increasing stick type magnetism of beneficial Crack Monitoring is from suspended prop and preparation method thereof Download PDFInfo
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- CN109423270A CN109423270A CN201710780310.3A CN201710780310A CN109423270A CN 109423270 A CN109423270 A CN 109423270A CN 201710780310 A CN201710780310 A CN 201710780310A CN 109423270 A CN109423270 A CN 109423270A
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
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Abstract
The invention discloses a kind of increasing stick type magnetism of beneficial Crack Monitoring from suspended prop and preparation method thereof, which is silane coupler modified proppant aggregate, is grafted with aqueous increasing stick type high molecular material thereon.Method includes the following steps: the solution of silane coupling agent is ejected into proppant aggregate surface, the first reaction occurs, obtains coupling agent modified proppant aggregate；The aqueous high molecular lotion of increasing stick type is ejected on the coupling agent modified proppant aggregate, the second reaction occurs, obtains the proppant.In the present invention, the use of fluidized bed increases the contact area of proppant particles and reactant, and the fluidized bed moment is kept in motion, and avoids hot-spot, improves reaction speed；It is of the present invention from suspended prop preparation method, continuous production can have the advantages that high production efficiency, stable product quality from suspended prop under the conditions of technique for fixing.
Description
Technical field
The invention belongs to field of oil development, certainly outstanding more particularly, to a kind of increasing stick type magnetism of beneficial Crack Monitoring
Floating proppant and preparation method thereof.
Background technique
Hydraulic fracturing is the important measures of well production increment, intensified injection of wells, especially as largely opening for Low permeable oil and gas reservoirs
Hair, hydraulic fracturing technology application are increasingly extensive.The principle of hydraulic fracturing is made using the pump injection pressure power higher than formation fracture pressure
It obtains stratum and forms man-made fracture, and link up intrinsic fracture, thus formed to formation fluid or the higher flow conductivity of entry well fluid,
And final significantly promotion oil gas well production or water injection capacity.
In this technique, fracturing propping agents play important work to the high flow conductivity of the man-made fracture generated after pressure
With.Its action principle is that proppant is carried along into the man-made fracture generated due to pressure break by full-bodied fracturing fluid, is being stopped
Only after fracturing pump note, even if when bottom pressure drops below formation closure pressure, still due to proppant support formation fracture
Development status is so kept, so that pit shaft and stratum depths still keep preferable connected state, plays the work of high flow-guiding channel
With.
Since the 50-60 age in 20th century, successively there is pressure break made of the materials such as metal, plastics, walnut shell, glass
Proppant, but since its own unsurmountable defect causes to be eliminated.At present used in proppant be mainly quartz sand,
Haydite and overlay film proppant.Quartz sand has density relatively low, and is naturally easy to get, the advantages such as cheap, but due to pressure-bearing
The disadvantages such as ability is poor, easily broken, circularity, sphericity and surface smoothness are low, only make in shallow well, low clossing pressure oil-gas Layer
With.For burying deeper oil-gas reservoir, due to strata pressure height, temperature is also higher, mainly using high density, high-intensitive haydite
Proppant.Especially currently, burying deeper, the higher Low permeable oil and gas reservoirs with abundant reserves of temperature will be China's oil gas field
Promote the main battle ground of yield.This just gives high-intensitive fracturing propping agents to provide more market demands.
High-intensitive proppant, density generally all with higher.During deep-well, ultra-deep wells, to carrying branch
The fracturing fluid for supportting agent proposes requirements at the higher level, especially proposes more rigors to the performance of pressure break thickening agent, it is desirable that it has
Better heatproof resistant to shearing ability, excellent broken glue effect.This just eventually leads to operating cost and is substantially increased, and due to pressure break
Liquid returns seepage channel caused by row's performance difference and blocks, and reduces fracturing transformation effect.
Using one kind from suspended prop, i.e. proppant can be suspended using feature itself in clear water, without addition
Thickener required for load fluid is prepared in conventional fracturing process, while also just eliminating matching liquid program and setting for conventional pressure break
It is standby, the integral construction time is shortened, is also reduced due to the caused injury and operating cost to reservoir of fracturing fluid recovery (backflow) difference.
104944840 A of Chinese patent CN of Qin Shengyi's application of Beijing Ren Chuan group is (for natural water pressing crack construction
From the preparation of suspended prop), CN 104946233 A (a kind of for natural water pressure break from suspended prop), CN
104946234 A (a kind of from suspended prop and preparation method thereof), 104946235 A of CN are (from the preparation side of suspended prop
Method and the proppant being prepared), 104948154 A of CN (a kind of natural water pressing crack construction method), 104948158 A of CN
(the exploitation of oil-gas field method of hydraulic fracturing), 104948159 A of CN (a kind of natural water pressing crack construction method) and CN
7 patents such as 104948160 A (from suspended prop and its preparation and construction method), what is covered prepares from suspended prop
Method and pressing crack construction method.It wherein, is to disperse the bones such as quartz sand, haydite for adhesive from suspended prop preparation process
In material, be added curing agent, add water-soluble high-molecular material and obtain (or first add adhesive, water soluble polymer is then added
Material finally adds curing agent).Process conditions are related to multiple heating, cooling, and auxiliary agent is to be added directly into aggregate, the phase
It hopes and uniform state is reached by stirring.
The U.S. is from suspension support Co., Ltd in Chinese 103764948 A of patent CN applied (for hydraulic fracture
From-suspended prop), 104364343 A of CN (for hydraulic fracturing from-suspended prop), CN 104379697 A (use
In hydraulic fracturing from suspended prop) etc. 3 patents, cover from suspended prop and prepare raw material and technology of preparing.System
Standby process includes first by the drying of unmodified proppant, and by mixing with polymer-modified, hybrid reaction is done again after a certain period of time
Dry, final sizing obtains finally from suspended prop.The results show that ammonium persulfate on from the suspension of suspended prop influence compared with
Greatly, in order to prevent from the agglomeration of suspended prop, anti-caking agent need to be added, and need to be added to reach more excellent effect and more help
Agent, program are complicated.
Zhang Tiancheng et al. application Chinese patent CN 104893707 A (it is a kind of for riverfrac treatment from suspended prop
And preparation method thereof) report from suspended prop, be made of kernel particles of aggregates and compound resin clad.It is therein compound
Resin clad is made of water-soluble resin, water-swellable polymer, crosslinking agent, dispersing agent.The proppant is at 25 DEG C of room temperature, sand
Suspension time than measuring under the conditions of being 20% is no more than 100s.
Document (novel application [J] the hydrocarbon reservoir evaluation and exploitation from suspension fracturing propping agents of Huang Bo, 2015,5 (1):
67-70) report it is a kind of from suspended prop, the proppant by hard aggregate and surface can hydrated molecule form.Surface
Can hydrated molecule meet water Fast-swelling, aggregate surface formed hydrated sheath reduce the density of proppant in water.Meanwhile it propping up
Support agent surface portion organic molecule is unfolded in aqueous solution, so as to cause Aqueous Solution Viscosity increase, finally realizes not by increasing
Thick dose can suspend in clear water.The organic substance of the proppant aggregate surface can fall off from surface to be dissolved in water, and water is caused
Solution viscosity increases, while temperature has an impact to its sedimentation time, and temperature increases, and the sedimentation time shortens.
In conclusion the existing process substantially one from suspended prop and the resin coating proppant reported at present
Sample.It is then dry by mixing, stirring with the heating of surface covering material by proppant magnetism aggregate, solidify, or using immersion
Dry method afterwards.Production method energy consumption is high for these, be unable to continuous production, product is easy to consolidate agglomerating, unstable quality.
The effect of fracture condudtiviy is not only related with the performance of proppant, and with the reality to Fracture distribution after pressure
When control it is closely bound up.By Crack Monitoring, flaw size, fractue spacing can be understood in time, produced after being further understood that pressure
Can, to fracturing parameter, optimization of construction technology and Yield evaluation, all have the function of positive.Therefore, effective accurate Crack Monitoring
Method is significant to the final effect of hydraulic fracturing.
Fracturing Monitoring method can be divided into indirect monitoring and direct monitoring method.Indirect monitoring method includes operation pressure point
Analysis and transient well test；Direct monitoring method includes near wellbore zone monitoring technology and remote well area monitoring technology.Near wellbore zone
Monitoring technology such as radioactive ray tracer, temperature logging, under-mine TV etc.；Remote well area monitoring technology such as ground inclination image, micro-
Seismic monitoring, the well inclined instrument of construction etc..Near wellbore zone monitoring technology monitoring range is limited, cannot provide point in crack after pressure very well
Cloth form；Remote well monitoring technology is easy to be influenced by factors such as environment, can only provide approximate pressure in acquisition data procedures
Crack distribution mode afterwards.
103233720 B of Chinese patent CN (hydraulic fracture monitoring system and monitoring method based on magnetic support agent), CN
103244103 B (hydraulically created fracture real-time monitoring system and monitoring method based on nanometer magnetofluid) and CN 103266877
B (a kind of proppant backflow control system and control method based on magnetic support agent) refers to magnetic support agent, but there is no tool
Body production method.102099545 B of patent CN is (for determining the manufacturer of the functional support agent of subsurface fault geometry
Method and purposes) and 105670600 A of CN (a kind of acid-sensitive deformation Magnetic Tracer function of water is from suspended prop and its preparation side
Method) conventional proppants are based on as magnetic aggregate, it is prepared by traditional method for coating.
Summary of the invention
It is an object of the invention to solve, prior art production method energy consumption is high, be unable to continuous production, product is easy consolidation
It is agglomerating, the problem of unstable quality, the increasing stick type magnetism of beneficial Crack Monitoring a kind of is provided from suspended prop and its preparation side
Method not only efficiently solves the problems, such as the real-time monitoring of fracture in fracturing process, and simplifies hydraulic fracturing operations, number of devices
Amount, improves production safety, finally improves economy and environmental benefit.
To achieve the goals above, the increasing stick type magnetism that the first aspect of the present invention provides a kind of beneficial Crack Monitoring is hanged certainly
Floating proppant, the proppant are silane coupler modified proppant aggregate, are grafted with aqueous increasing stick type high molecular material thereon.
It is of the present invention that proppant aggregate and aqueous increasing stick are made by the effect of silane coupling agent from suspended prop
Type high molecular material is connected by chemical bond, is connected firmly, in use without departing from and aqueous increasing stick type high score
Sub- material can meet the quick increasing stick of water.It is of the invention to meet the quick increasing stick of water from suspended prop, knot good from suspending power
Structure is stablized, and in high temperature and the water of high salinity, also can be realized from suspended state.
A preferred embodiment according to the present invention, the silane coupling agent include alkyl silane, amino silane and first
At least one of base acryloxy silane.
Wherein, the alkyl silane is preferably isocyanatopropyl triethoxysilane, dimethoxydiphenylsilane, methyl
Triacetoxysilane, methyl tributanoximo silane, dimethyldimethoxysil,ne, trimethoxysilane, isobutyl
Ethyl triethoxy silicane alkane, phenyltrimethoxysila,e, phenyl triethoxysilane, n- octyl trimethoxy silane, n- octyl three
In Ethoxysilane, dodecyl triethoxysilane, dodecyltrimethoxysilane and hexadecyl trimethoxy silane
At least one.
The amino silane is preferably gamma-aminopropyl-triethoxy-silane, γ-aminopropyltrimethoxysilane, N- β-ammonia
Ethyl-γ-aminopropyltriethoxy dimethoxysilane, N- β-aminoethyl-γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxy
At least one of diethoxy silane, γ-divinyl triammonium hydroxypropyl methyl dimethoxysilane.
The methacryloxypropyl silane is preferably γ-(methacryloxypropyl) propyl trimethoxy silicane, γ-(first
Base acryloyl-oxy) in hydroxypropyl methyl dimethoxysilane and γ-methacryloxypropyl at least one
Kind.
A preferred embodiment according to the present invention, the aqueous increasing stick type high molecular material be acrylic polymer,
Acrylic polymer, 2- acrylamido -2- methyl-propanesulfonic acid esters polymer, acrylic acid/2- acrylamido -
At least one of 2- methyl-propanesulfonic acid ester copolymer；The aqueous increasing stick type high molecular material is to meet the quick increasing stick of water
High-molecular organic material can be artificial synthesized high molecular material.
In the present invention, the acrylic polymer includes acrylate copolymer and its derivative, preferably polyacrylic acid-
Acrylamide.
In the present invention, the acrylic polymer is preferably polymethyl acrylate, polyethyl acrylate, poly- methyl-prop
At least one of e pioic acid methyl ester.
In the present invention, the 2- acrylamido -2- methyl-propanesulfonic acid esters polymer includes 2- acrylamido -
2- methyl-propanesulfonic acid ester polymer and its derivative, preferably 2- acrylamido -2- methyl-propanesulfonic acid ethyl ester.
In the present invention, the acrylic acid/2- acrylamido -2- methyl-propanesulfonic acid ester copolymer is preferably acrylic acid -
2- acrylamido -2- methyl-propanesulfonic acid ethyl ester.
A preferred embodiment according to the present invention, the proppant aggregate are Fe3O4、γ-Fe2O3、CoFe2O4、
MnFe2O4And NiFe2O4At least one of.
In a specific example, the particle size range of the proppant aggregate is 80-180 mesh (80-180 μm), preferably
100-150 mesh (106-150 μm).
In the present invention, on the basis of the weight of the proppant aggregate, the content of the silane coupling agent is preferably 0.1-
The content of 0.5wt%, further preferably 0.1-0.2wt%, the aqueous increasing stick type high molecular material are preferably 0.5-
10wt%, further preferably 0.5-5wt%, most preferably 0.5-0.6wt%.
The second aspect of the present invention provides the increasing stick type magnetism beneficial to Crack Monitoring from the preparation method of suspended prop, is somebody's turn to do
Method the following steps are included:
(1) solution of silane coupling agent is ejected into proppant aggregate surface, the first reaction occurs, obtains coupling agent modified
Proppant aggregate；
(2) the aqueous high molecular lotion of increasing stick type is ejected on the coupling agent modified proppant aggregate, occurs the
Two reactions, obtain the proppant.
Coupling agent alcoholic solution is ejected into proppant aggregate surface, solvent heated fast by the method provided according to the present invention
Evaporation, and coupling agent reacts rapidly with the surface of proppant aggregate, being formed in proppant aggregate surface can further progress reaction
Coupling molecule, namely by first reaction coupling agent and proppant aggregate is bonded.Then injection will be carried out again contains water
Property the high molecular lotion of increasing stick type, solvent heated fast evaporation, and the proppant of aqueous increasing stick type macromolecule and coupling modifier
Surface is reacted rapidly, the certainly outstanding proppant of the increasing stick type for being made described.Namely by the second reaction, using coupling agent by proppant bone
Material and aqueous tackifier macromolecule are bonded.
In the present invention, the method preferably carries out in a fluidized bed, and proppant aggregate is placed in fluidized bed, and the silane is even
The solution for joining agent sprays into fluidized bed from the bottom of fluidized bed, and the aqueous high molecular lotion of increasing stick type is sprayed into from tangent line mouth and fluidized
In bed.
Heretofore described fluidized bed, be it is a kind of with industrial circle using more mature equipment, can be used to be granulated,
Coating etc..Its routinely composition include: air filtration heater, bed body, gas distributor, cyclone separator, dipleg, heat exchanger,
Expanding reach etc..Purified air is by heating, and from bottom, high speed is blown into, and makes proppant particles in bed body in fluidized state, will
After coupling agent and the water-soluble high molecular solution atomization of increasing stick type spray into, reacted with proppant surface, simultaneously because hot-air
Continuous drying to proppant makes rapid solvent evaporation, reactant fast reaction.Thermal current passes through between the particle of suspension, moves
Heat exchange is carried out under the conditions of state, takes away moisture, and (super-hydrophobic) lotion for being sprayed on proppant aggregate surface is made to react and do rapidly
Dry film forming.
Preparation method provided by the invention, preferably in a fluidized bed, first by the prepared solution containing coupling agent,
(for example, it is preferable to the pressure of compressed air is 0.5-1.0MPa) (utilizes compressed air by institute by bottom pressure spray process technology under high pressure
The solution for stating coupling agent sprays into fluidized bed from the bottom of fluidized bed) it is injected in the proppant aggregate surface discharged from feed bin, to it
It is come into full contact with proppant aggregate after reacting, then increasing stick type function is contained from side injection is prepared using tangential jet technology
The Polymer Solution system of energy group, after the system is heated, rapid solvent evaporation, and the branch of increasing stick type high molecular material and coupling
It supports the generation chemical reaction of agent aggregate surface simultaneously to dry rapidly, the increasing stick type for being made described hangs proppant certainly.
In a specific embodiment, which comprises (1) configured coupling agent alcoholic solution and water-soluble increasing stick type
High molecular lotion；(2) fluidized bed is opened, aspiration pressure and inlet air temperature are adjusted, hot blast temperature is set as 120~150 DEG C, pressure
Power finally reaches " boiling " fluidized state depending on proppant；(3) atomizing pressure is adjusted after heating is preheating to designated value
With certain value, coupling agent alcoholic solution is sprayed into fluidized bed from fluidized-bed bottom with compressed air；The pressure of compressed air be 0.5~
1.0MPa reacts 10min；(4) water-soluble increasing stick type high molecular alcohol solution or aqueous solution are sprayed into fluidized bed from tangent line mouth again；
(5) after the injection completely of water-soluble increasing stick type high molecular alcohol solution, constant temperature is kept, " boiling " fluidized state is still presented in proppant,
Water-soluble increasing stick type functional membrane is formed in proppant aggregate surface, is made described from suspension increasing stick type proppant；Constant temperature time with
Increasing stick type high molecular material reacts completely to be advisable, and is usually no more than 30min.
A kind of preferred embodiment according to the present invention, it is 105-150 DEG C that the condition of first reaction, which includes: temperature, excellent
It is selected as 120-150 DEG C, time 5-15min, preferably 10min；It is 105-150 that the condition of second reaction, which includes: temperature,
DEG C, time 15-30min, preferably 20min.
In the present invention, the solution of the silane coupling agent can be the alcoholic solution of silane coupling agent.The silane coupling agent
Solution in the concentration of silane coupling agent be 2-10wt%, the solution of preferably 5-10wt%, the silane coupling agent preferably contains
There is hydrolytic accelerating agent, such as acid, such as acetic acid, formic acid etc..
In the present invention, the aqueous high molecular concentration of increasing stick type is 5- in the aqueous high molecular lotion of increasing stick type
20wt%, preferably 10-20wt%, the lotion can take water as a solvent or be molten with alcohols such as methanol, ethyl alcohol or isopropanol etc.
Agent.Emulsifier and/or hydrolytic accelerating agent are preferably comprised in the aqueous high molecular lotion of increasing stick type.It can be mentioned containing emulsifier
High emulsifying effectiveness, the emulsifier are conventional emulsifier, such as polyethylene oxide alkyl ethers, polyoxyalkyl ester.The water
Solve promotor such as acid, such as acetic acid, formic acid etc..
Advantages of the present invention effect:
1, in the present invention, the use of fluidized bed increases the contact area of proppant particles and reactant, and fluidized bed
Moment is kept in motion, and avoids hot-spot, improves reaction speed, and the particle flowed is easy to be added and take out,
It does not influence reaction to carry out, process continuous can be made, improve production efficiency.
2, of the present invention from suspended prop preparation method, can under the conditions of technique for fixing continuous production from the branch that suspends
Agent is supportted, has the advantages that high production efficiency, stable product quality.
3, magnetic increasing stick type proppant of the invention under normal temperature conditions, can quick increasing stick, 10min can be originally
Preferable suspended state is shown in water, and there is preferable Magnetic Induction.Increasing stick type magnetism utilizes support from suspended prop
The chance water increasing stick group of agent magnetism aggregate surface modification, increases water phase viscosity around proppant particles, achieves in water
From suspended state, thickener required for load fluid is prepared in conventional fracturing process without additionally adding, while also
Eliminate conventional pressure break matches liquid program and equipment, shortens the integral construction time, also reduces since fracturing fluid recovery (backflow) difference is led
The injury to reservoir caused and operating cost.
4, magnetic increasing stick type proppant stable structure of the invention also has good increasing in high temperature and high salinity under water
Glutinous effect (for example, under conditions of temperature is higher than 100 DEG C, still has good suspending power, and salinity is 5.0 in water
×103The water sample of mg/L is smaller from suspension function effect to it).
Other features and advantages of the present invention will then part of the detailed description can be specified.
Specific embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describe preferred implementations of the invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without that should be limited by the embodiments set forth herein.Phase
Instead, these embodiments are provided so that the present invention is more thorough and complete, and can be by the scope of the present invention completely
It is communicated to those skilled in the art.
In the present invention, from the method for suspending power test are as follows: measure 200mL tap water respectively and be placed in 6 beakers, then
60g is poured into respectively from suspended prop, stirred respectively with blender (500r/m) 2min, 4min, 6min, 10min, 30min,
Stop stirring after 60min, be then poured into 250mL glass cylinder, observe its in water from suspending power.
Embodiment 1
Coupling agent alcoholic solution is prepared: measuring dehydrated alcohol 900mL, trimethoxysilane 50g, hydrolytic accelerating agent second
Sour 10mL, it is spare after ten minutes with the speed stirring of 400r/min.
Water-soluble increasing stick type macromolecule emulsion liquid is prepared: weighing 250g polyethyl acrylate (weight average molecular weight 3,000,000, Mw/
Mn is that 2.56) high molecular material, 10g emulsifier op-10, measurement 30mL acetic acid are successively poured into as hydrolytic accelerating agent
It is spare after ten minutes with the speed stirring of 1000r/min in 1500mL water.
It is prepared from suspended prop: weighing the Fe of 50kg3O4(100~150 mesh of partial size) is packed into fluidized bed；Open fluidisation
The blower and heating device of bed, fan delivery can make the proppant in fluidized bed keep sufficiently boiling flowing, and hot blast temperature is set
It is set to 150 DEG C；When temperature is constant in bed, the compressed air for being 0.5MPa with pressure becomes a mandarin the coupling agent alcoholic solution injection of preparation
Change in bed, isothermal reaction 10min；The compressed air for being again 0.5MPa with pressure cuts the increasing stick type macromolecule emulsion liquid edge of preparation
Line direction is sprayed in fluidized bed, and isothermal reaction 30min can be taken off obtained from suspended prop.
Obtained will test from suspending power and temperature resistant capability from suspended prop, data are shown in Table 1.
Comparative example 1
Water-soluble increasing stick type macromolecule emulsion liquid is prepared with embodiment 1.
It is prepared from suspended prop: weighing the Fe of 50kg3O4(100~150 mesh of partial size) it is spare to be packed into container；By preparation
Water-soluble increasing stick type macromolecule emulsion liquid is added to the container, and is stirred evenly, after resulting mixture is spontaneously dried, screening, i.e.,
It is made from suspended prop.1 is shown in Table from suspending power and temperature resistant capability test data.
Suspending power of the table 1 from suspended prop
Embodiment 2
Coupling agent alcoholic solution is prepared: measuring dehydrated alcohol 1700mL, dodecyltrimethoxysilane 100g, acetic acid
50mL, it is spare after ten minutes with the speed stirring of 400r/min.
Water-soluble increasing stick type macromolecule emulsion liquid is prepared: weighing the poly- 2- acrylamido -2- methyl-propanesulfonic acid second of 300g
Ester (weight average molecular weight 6,000,000, Mw/Mn 1.75) high molecular material, emulsifier op-10 20g measure 50mL acetolysis and promote
Into agent, successively pour into 2000mL water, it is spare after ten minutes with the speed stirring of 1000r/min.
It is prepared from suspended prop: weighing the Fe of 50kg3O4(100~150 mesh of partial size) is packed into fluidized bed；Open fluidisation
The blower and heating device of bed, fan delivery can make the proppant in fluidized bed keep sufficiently boiling flowing, and hot blast temperature is set
It is set to 150 DEG C；When temperature is constant in bed, the compressed air for being 0.5MPa with pressure becomes a mandarin the coupling agent alcoholic solution injection of preparation
Change in bed, isothermal reaction 10min；The compressed air for being again 0.5MPa with pressure cuts the increasing stick type macromolecule emulsion liquid edge of preparation
Line direction is sprayed in fluidized bed, and isothermal reaction 30min can be taken off obtained from suspended prop.
By testing from suspending power from suspended prop obtained, it the results are shown in Table 2.
Comparative example 2
Water-soluble increasing stick type macromolecule emulsion liquid is prepared with embodiment 2.
It is prepared from suspended prop: weighing the Fe of 50kg3O4(100~150 mesh of partial size) it is spare to be packed into container；By preparation
Water-soluble increasing stick type macromolecule emulsion liquid is added to the container, and is stirred evenly, after resulting mixture is spontaneously dried, screening, i.e.,
It is made from suspended prop.2 are shown in Table from suspending power and temperature resistant capability test data.
Suspending power of the table 2 from suspended prop
It can be seen from Tables 1 and 2 increasing stick type magnetism of the invention from suspended prop under normal temperature conditions, 10min is just
Preferable suspended state can be shown in tap water, and compared to comparative example 1-2, there is the suspending power being obviously improved.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.
Claims (10)
1. a kind of increasing stick type magnetism of beneficial Crack Monitoring is from suspended prop, which is characterized in that the proppant is silane coupled
The modified proppant aggregate of agent, is grafted with aqueous increasing stick type high molecular material thereon.
2. the increasing stick type magnetism of beneficial Crack Monitoring according to claim 1 is from suspended prop, wherein the silane
Coupling agent includes at least one of alkyl silane, amino silane and methacryloxypropyl silane；
Wherein, the alkyl silane is preferably isocyanatopropyl triethoxysilane, dimethoxydiphenylsilane, three second of methyl
Acyloxy silane, methyl tributanoximo silane, dimethyldimethoxysil,ne, trimethoxysilane, isobutyl group three
Ethoxysilane, phenyltrimethoxysila,e, phenyl triethoxysilane, n- octyl trimethoxy silane, three ethoxy of n- octyl
In base silane, dodecyl triethoxysilane, dodecyltrimethoxysilane and hexadecyl trimethoxy silane extremely
Few one kind；
The amino silane is preferably gamma-aminopropyl-triethoxy-silane, γ-aminopropyltrimethoxysilane, N- β-aminoethyl-
γ-aminopropyltriethoxy dimethoxysilane, N- β-aminoethyl-γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxy diethyl
At least one of oxysilane, γ-divinyl triammonium hydroxypropyl methyl dimethoxysilane；
The methacryloxypropyl silane is preferably γ-(methacryloxypropyl) propyl trimethoxy silicane, γ-(methyl-prop
Alkene acyl-oxygen) at least one of hydroxypropyl methyl dimethoxysilane and γ-methacryloxypropyl.
3. the increasing stick type magnetism of beneficial Crack Monitoring according to claim 1 is from suspended prop, wherein the aqueous increasing
Glutinous type high molecular material is acrylic polymer, acrylic polymer, 2- acrylamido -2- methyl-propanesulfonic acid
At least one of esters polymer, acrylic acid/2- acrylamido -2- methyl-propanesulfonic acid ester copolymer；
The acrylic polymer is preferably polyacrylic acid-acrylamide；
The acrylic polymer is preferably polymethyl acrylate, polyethyl acrylate, in polymethyl methacrylate
It is at least one；
2- acrylamido -2- methyl-propanesulfonic acid the esters polymer is preferably 2- acrylamido -2- methyl-propan
Sulfonic acid；
The acrylic acid/2- acrylamido -2- methyl-propanesulfonic acid ester copolymer is preferably acrylic acid -2- acrylamido -
2- methyl-propanesulfonic acid ethyl ester.
4. the increasing stick type magnetism of beneficial Crack Monitoring according to claim 1 is from suspended prop, wherein the proppant
Aggregate is Fe3O4、γ-Fe2O3、CoFe2O4、MnFe2O4And NiFe2O4At least one of.
5. the increasing stick type magnetism of beneficial Crack Monitoring according to claim 1 is from suspended prop, wherein the proppant
The particle size range of aggregate is 80~180 mesh.
6. the increasing stick type magnetism of beneficial Crack Monitoring described in any one of -5 is from suspended prop according to claim 1,
In, on the basis of the weight of the proppant aggregate, the content of the silane coupling agent is 0.1-0.5wt%, the aqueous increasing
The content of glutinous type high molecular material is 0.5-10wt%.
7. the increasing stick type magnetism of beneficial Crack Monitoring described in any one of claims 1-6 is from the preparation method of suspended prop,
It is characterized in that, method includes the following steps:
(1) solution of silane coupling agent is ejected into proppant aggregate surface, the first reaction occurs, obtains coupling agent modified branch
Support agent aggregate；
(2) the aqueous high molecular lotion of increasing stick type is ejected on the coupling agent modified proppant aggregate, it is anti-occurs second
It answers, obtains the proppant.
8. preparation method according to claim 7, wherein this method carries out in a fluidized bed, and proppant aggregate is placed in stream
Change in bed, the solution of the silane coupling agent sprays into fluidized bed, the aqueous high molecular cream of increasing stick type from the bottom of fluidized bed
Liquid sprays into fluidized bed from tangent line mouth.
9. preparation method according to claim 7, wherein it is 105-150 that the condition of first reaction, which includes: temperature,
DEG C, time 5-15min；It is 105-150 DEG C that the condition of second reaction, which includes: temperature, time 15-30min.
10. preparation method according to claim 7, wherein silane coupling agent is dense in the solution of the silane coupling agent
Degree is 2-10wt%, and the solution of the silane coupling agent preferably comprises hydrolytic accelerating agent；The aqueous high molecular cream of increasing stick type
The aqueous high molecular concentration of increasing stick type is 5-20wt% in liquid, preferably comprises emulsification in the aqueous high molecular lotion of increasing stick type
Agent and/or hydrolytic accelerating agent.
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| CN111880232A (en) * | 2020-07-06 | 2020-11-03 | 中国石油天然气股份有限公司 | Magnetic nano-film imaging proppant and preparation method and application thereof |
| CN112646564A (en) * | 2019-10-09 | 2021-04-13 | 青岛大地新能源技术研究院 | Magnetic hydrophobic proppant and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112646564A (en) * | 2019-10-09 | 2021-04-13 | 青岛大地新能源技术研究院 | Magnetic hydrophobic proppant and preparation method thereof |
| CN111880232A (en) * | 2020-07-06 | 2020-11-03 | 中国石油天然气股份有限公司 | Magnetic nano-film imaging proppant and preparation method and application thereof |
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