CN106928615A - Expanding material composition containing polyacrylamide and from suspended prop and its application and preparation method - Google Patents
Expanding material composition containing polyacrylamide and from suspended prop and its application and preparation method Download PDFInfo
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- CN106928615A CN106928615A CN201511021240.0A CN201511021240A CN106928615A CN 106928615 A CN106928615 A CN 106928615A CN 201511021240 A CN201511021240 A CN 201511021240A CN 106928615 A CN106928615 A CN 106928615A
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- suspended prop
- polyacrylamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/24—Homopolymers or copolymers of amides or imides
- C08L33/26—Homopolymers or copolymers of acrylamide or methacrylamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- 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
- C09K8/805—Coated proppants
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a kind of expanding material composition containing polyacrylamide and from suspended prop and its application and preparation method.Expanding material composition of the invention is coated on proppant body, expanding material composition can be with Fast-swelling in water, firm hydrated sheath is formed in proppant particles outer surface, reduce the relative density of proppant particles, a small amount of organic molecule in composition can be stretched in water, increase the viscosity of water, this is also beneficial to suspension of the proppant particles in water.Simultaneously, it is of the invention can be easy to operate without configuring fracturing fluid using water as fracturing fluid from suspended prop, equipment is simple, avoid and use organic solvent, it is also possible to reduce the viscosity of fracturing fluid, reduce the conveying difficulty of fracturing fluid, and without additionally adding macromolecular compound in fracturing fluid, macromolecular compound is avoided as fracturing fluid enters underground, oil-gas mining hole is blocked, pollution of the macromolecular compound to ground environment is decreased.
Description
Technical field
The present invention relates to fluid ore deposit exploitation field, in particular it relates to a kind of expansion material containing polyacrylamide
Feed composition and from suspended prop and its application and preparation method.
Background technology
Often needed by fracturing technique in the recovery process of the fluid ore deposit such as oil, natural gas, i.e., using water
Power is acted on, and oil-gas Layer is formed a kind of method in crack, so also known as hydraulic fracturing.Hydraulic fracturing is exactly
Using ground high-pressure pump, the fracturing fluid with viscosity higher is squeezed to oil reservoir by pit shaft.When injection pressure break
When the speed of liquid exceedes the absorbability of oil reservoir, then pressure very high is formed on the oil reservoir of shaft bottom, when this
When pressure exceedes the fracture pressure of reservoir rock near shaft bottom, oil reservoir will be pressed off and be produced crack.At this moment,
Fracturing fluid on and on is squeezed to oil reservoir, crack will continue to oil reservoir interior expansion.In order to keep pressure
The crack opened is in open configuration, then clamp-ons the load fluid with proppant particles, load fluid to oil reservoir
Into after crack, crack on the one hand can be made to continue to extend forward, on the other hand can support and press
The crack opened, makes it be not closure.Followed by injection displacement fluid, the load fluid of pit shaft is all replaced
Into crack, fracture support is got up with proppant.Finally, the high viscosity fracturing fluid of injection can drop automatically
Outside solution discharge pit shaft, the crack that one or more length is not waited is left in oil reservoir, make oil reservoir
A new fluid passage is set up between pit shaft.After pressure break, oil gas well yield typically can be significantly
Degree increases.
In existing proppant-fracturing fluid system, in order to prevent proppant particles from settling, it usually needs high
Viscosity fracturing fluid makes particle suspend, and this fracturing fluid is generally used as by adding water miscible polymer
Thickener increases the viscosity of fluid.But need special to operate and set with liquid in this fracturing work
It is standby, at the same by the specified location of high-viscosity fracturing fluid feeding underground and the pump power consumed during the row of returning compared with
Greatly, and in fracturing fluid the macromolecular compound for using enters stratum in company with fracturing fluid, is partially left at underground
Macromolecular compound can block the hole on stratum, cause oil pump capacity to decline and can cause the pollution on stratum.
The content of the invention
It is an object of the invention to provide a kind of expanding material composition containing polyacrylamide and suspension certainly
Support agent and its application and preparation method, can apply to preparation relative density low by the expanding material composition
, can be suspended in clear water from suspended prop, to solve to need high viscosity pressure break in the prior art
Fluid carrys out suspended proppant particles, and high-viscosity fracturing fluid causes the technology of fracturing fluid difficulty of transportation to ask
Topic, while the macromolecular compound added in can solving fracturing fluid blocks fuel-displaced hole and made to stratum
Into the technical problem of pollution.
To achieve these goals, the present invention provides a kind of expanding material composition containing polyacrylamide,
The expanding material composition contains polyacrylamide and natural macromolecular material, wherein, relative to 100 weights
Measure the polyacrylamide of part, the content of the natural macromolecular material is 1-15 weight portions, and the day
Right macromolecular material is natural plant gum family macromolecule material and/or animal glue family macromolecule material.
The present invention also provides one kind from suspended prop, should include proppant body and bag from suspended prop
The water-soluble intumescent material covered or be partly coated on the proppant body, the water-soluble expansion material
The bed of material makes above-mentioned expanding material composition bond and coat by binding agent and curing agent or part coats
On the proppant body, relative to the proppant body of 100 weight portions, the consumption of the binding agent
It is 0.6-12 weight portions, the consumption of the curing agent is 0.006-1.2 weight portions, the expanding material group
The consumption of compound is 0.6-12 weight portions.
The present invention also provides the above-mentioned preparation method from suspended prop, and the method is comprised the following steps：
(1) by proppant body and binding agent and curing agent, dispersion mixing is uniform at the first temperature, obtains
To the granular aggregates for being stained with binding agent and/or curing agent, wherein, relative to the support of 100 weight portions
Agent body, the consumption of the binding agent is 0.6-12 weight portions, and the consumption of the curing agent is 0.006-1.2
Weight portion；
(2) dispersion mixing is uniform at the second temperature to make the granular aggregates and expanding material composition
So that the expanding material composition is coated in the granular aggregates, obtain granular from the branch that suspends
Support agent, wherein, relative to the proppant body of 100 weight portions, the consumption of the expanding material composition
It is 0.6-12 weight portions.
The present invention also provides the above-mentioned application from suspended prop in terms of fluid ore deposit exploitation.
By above-mentioned technical proposal, expanding material composition is coated on proppant body surface, expands material
Feed composition can form firm hydrated sheath with Fast-swelling in water in proppant particles outer surface, drop
The low relative density from suspended proppant particles, a small amount of organic molecule in expanding material composition can be with
It is stretched in water, increases the viscosity of water, this is also beneficial to the suspension in water from suspended proppant particles.
Meanwhile, it is of the invention to be operated using water as fracturing fluid, without configuring fracturing fluid from suspended prop
Convenient, equipment is simple, it is to avoid use organic solvent, it is also possible to reduces the viscosity of fracturing fluid, reduces pressure
Split the conveying difficulty of liquid, and without additionally add macromolecular compound in fracturing fluid, it is to avoid macromolecule
Compound enters underground with fracturing fluid, blocks oil-gas mining hole, decreases macromolecular compound pair
The pollution of ground environment.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
Specific embodiment of the invention is described in detail below.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The present invention provides a kind of expanding material composition containing polyacrylamide, and the expanding material composition contains
There are polyacrylamide and natural macromolecular material, wherein, relative to the polyacrylamide of 100 weight portions,
The content of the natural macromolecular material is 1-15 weight portions, and the natural macromolecular material is plant
Glue family macromolecule material and/or animal glue family macromolecule material.By expanding material composition of the invention cladding
In proppant body surface, expanding material composition can be with Fast-swelling, outside proppant particles in water
Surface forms firm hydrated sheath, reduces the relative density from suspended proppant particles, expanding material group
A small amount of organic molecule in compound can be stretched in water, increase the viscosity of water, and this is also beneficial to from suspension
Suspension of the proppant particles in water.Meanwhile, it is of the invention can be using water as pressure break from suspended prop
Liquid, easy to operate without configuring fracturing fluid, equipment is simple, it is to avoid use organic solvent, it is also possible to
The viscosity of fracturing fluid is reduced, the conveying difficulty of fracturing fluid is reduced, and without additionally adding high in fracturing fluid
Molecular compound, it is to avoid macromolecular compound enters underground with fracturing fluid, blocks oil-gas mining hole,
Decrease pollution of the macromolecular compound to ground environment.
According to the present invention, the implication of polyacrylamide is well known to those skilled in the art, and is water-soluble poly
Compound, with the structural formula as shown in formula (1), wherein, the value of n is not required particularly, can be with
It is well known to those skilled in the art, such as n can be 1-106Integer.Polyacrylamide point
Containing a large amount of hydrophilic polar groups in son, swelling behavior is good in water, is conducive to expanding material composition
Polar group in water in Fast-swelling, and polyacrylamide can be extended in water, help stabilization
The hydrated sheath of formation, further to make proppant particles suspend in water.
According to the present invention, the weight average molecular weight of polyacrylamide can change in very large range, for example may be used
Think 50-5000 ten thousand, under preferable case, the weight average molecular weight of polyacrylamide can be 300-2000 ten thousand,
Weight average molecular weight polyacrylamide within the above range has suitable dissolubility in water so that composition
Expanding material composition there is suitable swelling character, the water with Suitable Density can be formed in water
Change layer, so as to reduce the global density of proppant particles, it is suspended on the water surface.
According to the present invention, the species of polyacrylamide is not required particularly, can be people in the art
Member known to, can be selected from anion-polyacrylamide, cationic-type polyacrylamide, it is non-from
One or more in subtype polyacrylamide and amphoteric ionic polyacrylamide.Under preferable case, gather
Acrylamide can be anion-polyacrylamide.Anion-polyacrylamide can preferably in water
In it is swelling, improve the dissolubility of expanding material composition, can cause with expanding material composition prepare
Possess preferably from suspending power from suspended prop.The polyacrylamide for meeting above-mentioned condition can lead to
Cross and be commercially available, for example, the polypropylene of the trades mark of Zetag 8125 (7650) of Ciba of Switzerland production
Acid amides, the CYANATROL950 of American Cyanamid Company, 940, the Pusher of Dow Chemical production
700 polyacrylamide etc..
According to the present invention, natural macromolecular material can be natural plant gum family macromolecule material and/or animal glue
Family macromolecule material.Wherein, specifically, natural plant gum family macromolecule material can be preferably Arabic gum,
One or more in tragacanth, locust bean gum and rubber made from soybean cake；Animal glue family macromolecule material can be preferably
One or more in gelatine, gelatin and casein.The natural macromolecular material of mentioned kind can with it is poly-
Acrylamide constitutes expanding material composition, and can make the swelling behavior of expanding material composition increases, together
When, relative to artificial synthesized macromolecular material, degradable natural macromolecular material can be reduced to ring
The pollution in border.The natural macromolecular material for meeting above-mentioned condition can be commercially available, for example, being purchased from
DL-80, DL-100 Arabic gum of Tai'an your kind effort Jiao Ye Co., Ltds；Purchased from Jining Hua Kai resin
The locust bean gum of Co., Ltd；The soybean separation protein white powder of Zhengzhou dragon biochemistry chemical product Co., Ltd production,
Decentralized；Gelatine, gelatin of Jinan Hong Ju Chemical Co., Ltd.s etc..
The present invention also provides one kind from suspended prop, should include proppant body and bag from suspended prop
The water-soluble intumescent material covered or be partly coated on the proppant body, the water-soluble expansion material
The bed of material makes above-mentioned expanding material composition bond and coat by binding agent and curing agent or part is coated on
On the proppant body, relative to the proppant body of 100 weight portions, the consumption of the binding agent is
0.6-12 weight portions, the consumption of the curing agent is 0.006-1.2 weight portions, the expanding material composition
Consumption be 0.6-12 weight portions.It is of the invention from suspended prop by above-mentioned expanding material composition bag
It is overlying on proppant body outer surface and forms the proppant particles for having coated water-soluble expanding material, the proppant
Particle enters when in water, and the expanding material composition on surface can dissolve rapidly or swelling, in proppant
Grain surface forms one layer of hydrated sheath of expansion so that the density of proppant particles is substantially reduced, so as to suspend
In on the water surface.
According to the present invention, above-mentioned proppant body can be aggregate and/or pre-coated membrane bone material.
Wherein, aggregate can be it is existing it is various can be used in preparing from the aggregate of suspended prop, preferably
In the case of, aggregate can be selected from quartz sand, haydite, metallic particles, globular glass particle, sintered aluminium
In Tu Kuang, sintered alumina, sintered zirconia, synthetic resin, precoated sand, the shell particle of crushing
One or more.The aggregate density of mentioned kind is suitable, heat endurance is good and intensity is higher, by itself and this
What the expanding material composition of invention was prepared possesses good mechanical property from suspended prop.
According to the present invention, pre-coated membrane bone material can be coated on aggregate including above-mentioned aggregate and cladding or part
The pre- film covered resin layer on surface.Wherein, pre- film covered resin layer be preferably containing phenolic resin, epoxy resin,
One or more in furane resins, polyester resin and unsaturated polyester resin.Specifically, it is above-mentioned pre-coated
Film resin can be selected from species well-known to those skilled in the art, for example, can be bisphenol type epoxy tree
Fat, bisphenol f type epoxy resin, thermoplastic phenolic resin, thermosetting phenolic resin, 3301 unsaturations
Polyester resin, dimethylbenzene unsaturated polyester resin or furfuryl alcohol resin.
According to the present invention, the average particulate diameter of proppant body can change in very large range, and can
Reasonably to be selected according to actual needs, for example, the particle diameter of proppant body can be 6-200 mesh,
It is preferred that can be 10-100 mesh.
According to the present invention, the species of above-mentioned binding agent can be well known to those skilled in the art for from
The conventional binding agent of suspended prop preparation field, it is preferable that binding agent can be selected from phenolic resin,
One or more in epoxy resin, unsaturated polyester resin, heterocyclic polymer bonding agent.Mentioned kind
Binding agent for expanding material composition and granular aggregates bond effect more preferably, and will not make from
Suspended proppant particles are reunited and influence the particle size and dispersiveness from suspended prop.
Preferably, phenolic resin can be thermoplastic phenolic resin or thermosetting phenolic resin；Epoxy resin
Can the use of epoxide equivalent be the epoxy resin of 0.09-0.14mol/100g；Preferably bisphenol type epoxy
Resin, more preferably epoxy resin E-55 (616), E-51 (618), E-44 (6101), E-42 (634),
E-35(637)、E-20(601)、E-12(604)、E-06(607)、E-03(609)；Unsaturated polyester resin
Can be unsaturated poly- for m-phthalate unsaturated polyester resin, metaphenylene unsaturated polyester resin, xylol type
In ester resin, Bisphenol a unsaturated polyester resin, halo unsaturated polyester resin, vinyl ester resin
One or more；It is preferred that m-phthalate unsaturated polyester resin model can be 191 or 196；Metaphenylene
Unsaturated polyester resin model can be that 199, xylol type unsaturated polyester resin resin model can be
2608th, one or more in 902A3, Xm-1, Xm-2；Bisphenol a unsaturated polyester resin type
Number can be 197,3301,323 in one or more；Heterocyclic polymer bonding agent can be selected from poly-
One or more in acid imide, polybenzimidazoles, polyphenylene sulfide, polydiphenyl ether.
It is above-mentioned from the branch that suspends under preferable case in order to improve the covering property of binding agent according to the present invention
Curing agent can also be included in support agent, what the species of curing agent can be well known to those skilled in the art,
For example can for aliphatic amine and its addition product, tertiary amine and its salt, aromatic amine and its modified body, imidazoles,
Acid anhydrides, acyl peroxide, lipid peroxidation, paraformaldehyde, hexamethylenetetramine, phenolic aldehyde amine, divinyl three
One kind in amine, triethylene tetramine, what the consumption of curing agent can be well known to those skilled in the art,
Preferably hardener dose can be the 0.5-10% of weight of binder.
The present invention also provides the above-mentioned preparation method from suspended prop, and the method is comprised the following steps：
(1) by proppant body and binding agent and curing agent, dispersion mixing is uniform at the first temperature, obtains
To the granular aggregates for being stained with binding agent and/or curing agent, wherein, relative to the support of 100 weight portions
Agent body, the consumption of the binding agent is 0.6-12 weight portions, and the consumption of the curing agent is 0.006-1.2
Weight portion；
(2) dispersion mixing is uniform at the second temperature to make the granular aggregates and expanding material composition
So that the expanding material composition is coated in the granular aggregates, obtain granular from the branch that suspends
Support agent, wherein, relative to the proppant body of 100 weight portions, the consumption of the expanding material composition
It is 0.6-12 weight portions.
Preparation method from suspended prop of the invention can proppant body surface coat binding agent,
Curing agent and expanding material composition, the water-soluble expanding material of the cladding for obtaining can from suspended prop
With using water as fracturing fluid, meanwhile, the expanding material composition from suspended prop surface is rapid in water
It is swelling, the hydrated sheath of expansion is formed, the relative density from suspended proppant particles is reduced, it is suspended in it
On the water surface, consequently facilitating the conveying of fracturing fluid.
In the preparation method from suspended prop of the invention, in order to improve water-soluble expanding material
The covered effect of binding agent is coated, aggregate or pre-coated membrane bone material may be pretreated, processing method is this
Known to art personnel, for example, it is preferred to the steps such as scouring, drying, screening can be first passed through,
To remove the moisture in aggregate, it is easy to proppant body preferably to be combined with binding agent.
In the preparation method from suspended prop of the invention, the first Contact Temperature and second is contacted
Temperature is not required particularly, as long as meet above-mentioned binding agent can melt to wrap under the first Contact Temperature
It is overlying on proppant body surface；Above-mentioned expanding material composition can be with binding agent under the second Contact Temperature
Bond.Under preferable case, the first temperature can be 150-240 DEG C；Second temperature can be
80-180℃.At the temperature disclosed above, binding agent can be uniformly wrapped on aggregate surface, expanding material combination
Thing can be adhere closely on binding agent, obtain expanding material composition uniformly cladding from suspension support
Agent particle.
The present invention also provides the above-mentioned application from suspended prop in terms of fluid ore deposit exploitation.
According to the present invention, the exploitation of fluid ore deposit can specifically include natural gas, oil, shale oil, shale
Gas, fresh water, salt solution, the exploitation of hot water.Preferably, fluid ore deposit can be oil, natural gas, shale
Oil and shale gas in one or more.
The present invention is further illustrated below by embodiment, but therefore the present invention is not subject to any limit
System.In following embodiments of the invention, quartz sand, globular glass particle and haydite navigate purchased from Hebei capital
Mineral products Co., Ltd；Sintered alumina and sintered zirconia are purchased from Jiaxing limited public affairs of Jie Naier hard alloy
Department；Polyacrylamide is purchased from Ciba of Switzerland, and remaining reagent is commercially available prod.
Embodiment 1
The present embodiment is used to illustrate expanding material composition of the invention and by expanding material composition system
Standby preparation method from suspended prop and from suspended prop.
The expanding material composition of the present embodiment is the polyacrylamide (weight average molecular weight of 100 weight portions
300 ten thousand) and 1 weight portion Arabic gum (Tai'an your kind effort Jiao Ye Co., Ltds, DL-80).
(1) with quartz sand (particle diameter is 6-10 mesh) as raw material, after drying 5h through scouring, 120 DEG C,
The quartz sand for screening 6-40 mesh is aggregate；
(2) quartz sand of 100 weight portions screening is taken, 240 DEG C are heated to, epoxy resin E-51 (618) is added
0.6 weight portion, the weight portion of curing agent phthalic anhydride 0.006, is uniformly mixed and obtains binding agent bag
The granular aggregates covered；
(3) when the temperature of the granular aggregates of above-mentioned binding agent cladding is down to 180 DEG C, 0.6 weight is added
The above-mentioned expanding material composition of part, is uniformly mixed.
(4) cool down, broken, screening, the present embodiment for obtaining from suspended prop.
Embodiment 2
The present embodiment is used to illustrate expanding material composition of the invention and by expanding material composition system
Standby preparation method from suspended prop and from suspended prop.
The expanding material composition of the present embodiment is the polyacrylamide (weight average molecular weight of 100 weight portions
2000 ten thousand) and 15 weight portions locust bean gum (Jining Hua Kai resin Co., Ltd).
(1) 100 weight portion haydites (particle diameter is 100-200 mesh) are taken, 190 DEG C are heated to, 12 are added
Parts by weight binder bisphenol A-type unsaturated polyester (UP) 3301, adds the weight of curing agent phthalic anhydride 0.9
Part, it is uniformly mixed the granular aggregates for obtaining binding agent cladding；
(2) when the temperature of the granular aggregates of above-mentioned binding agent cladding is down to 80 DEG C, 12 weight are added
The above-mentioned expanding material composition of part, is uniformly mixed.
(3) cool down, broken, screening, the present embodiment for obtaining from suspended prop.
Embodiment 3
The present embodiment is used to illustrate expanding material composition of the invention and by expanding material composition system
Standby preparation method from suspended prop and from suspended prop.
The expanding material composition of the present embodiment is the polyacrylamide (weight average molecular weight of 100 weight portions
800 ten thousand) and 7 weight portions soybean separation protein white powder (purchased from Zhengzhou dragon biochemistry chemical product Co., Ltd,
Decentralized).
(1) 100 weight portion globular glass particles (particle diameter is 10-50 mesh) are taken, 210 DEG C are heated to,
11 parts by weight binder epoxy resin E-44s are added, is stirred, add the weight of curing agent diethylenetriamine 0.8
Amount part, is uniformly mixed the granular aggregates for obtaining binding agent cladding；
(2) when the temperature of the granular aggregates of above-mentioned binding agent cladding is down to 140 DEG C, 11 weights are added
The amount above-mentioned expanding material composition of part, is uniformly mixed.
(3) cool down, broken, screening, the present embodiment for obtaining from suspended prop.
Embodiment 4
The present embodiment is used to illustrate expanding material composition of the invention and by expanding material composition system
Standby preparation method from suspended prop and from suspended prop.
The expanding material composition of the present embodiment is the polyacrylamide (weight average molecular weight of 100 weight portions
1000 ten thousand) and 5 weight portions gelatine (be purchased from Jinan Hong Ju Chemical Co., Ltd.s).
(1) 100 weight portion sintered aluminas (particle diameter be 10-50 mesh) are taken, 150 DEG C are heated to, plus
Enter 10 parts by weight binder thermoplastic phenolic resins, add the weight portion of curing agent phthalic anhydride 1.1,
It is uniformly mixed the granular aggregates for obtaining binding agent cladding；
(2) when the temperature of the granular aggregates of above-mentioned binding agent cladding is down to 100 DEG C, 10 weights are added
The amount above-mentioned expanding material composition of part, is uniformly mixed.
(3) cool down, broken, screening, the present embodiment for obtaining from suspended prop.
Embodiment 5
The present embodiment is used to illustrate expanding material composition of the invention and by expanding material composition system
Standby preparation method from suspended prop and from suspended prop.
The expanding material composition of the present embodiment is the polyacrylamide (weight average molecular weight of 100 weight portions
1200 ten thousand) and 10 weight portions Arabic gum (Tai'an your kind effort Jiao Ye Co., Ltds, DL-80) and 4
The gelatin (being purchased from Jinan Hong Ju Chemical Co., Ltd.s) of weight portion.
(1) 100 weight portion sintered zirconias (particle diameter be 10-100 mesh) are taken, 160 DEG C are heated to, plus
Enter 9 parts by weight binder polyimides, add the weight portion of curing agent triethylamine 1, be uniformly mixed
To the granular aggregates of binding agent cladding；
(2) when the temperature of the granular aggregates of above-mentioned binding agent cladding is down to 125 DEG C, 9 weight are added
The above-mentioned expanding material composition of part, is uniformly mixed.
(3) cool down, broken, screening, the present embodiment for obtaining from suspended prop.
Embodiment 6
The present embodiment is used to illustrate expanding material composition of the invention and by expanding material composition system
Standby preparation method from suspended prop and from suspended prop.
The expanding material composition of the present embodiment is the polyacrylamide (weight average molecular weight of 100 weight portions
1500 ten thousand) and 12 weight portions Arabic gum (Tai'an your kind effort Jiao Ye Co., Ltds, DL-80).
(1) take the pre- laminated quartz sand of 100 weight portions (create scientific and technological group purchased from benevolence, trade mark ZFS-KND,
Particle diameter is 10-50 mesh), 230 DEG C are heated to, 8 parts by weight of xylene unsaturated polyester resin Xm-2 are added,
The weight portion of curing agent methyl ethyl ketone peroxide 0.9 is added, the particle for obtaining binding agent cladding is uniformly mixed
Shape aggregate；
(2) when the temperature of the granular aggregates of above-mentioned binding agent cladding is down to 145 DEG C, 5 weight are added
The above-mentioned expanding material composition of part, is uniformly mixed.
(3) cool down, broken, screening, the present embodiment for obtaining from suspended prop.
Embodiment 7
The present embodiment is used to illustrate expanding material composition of the invention and by expanding material composition system
Standby preparation method from suspended prop and from suspended prop.
Prepared from suspended prop using expanding material composition same as Example 1 and preparation method,
Except that, the weight average molecular weight of polyacrylamide is 500,000.
Embodiment 8
The present embodiment is used to illustrate expanding material composition of the invention and by expanding material composition system
Standby preparation method from suspended prop and from suspended prop.
Prepared from suspended prop using expanding material composition same as Example 1 and preparation method,
Except that, the particle diameter of quartz sand is 300 mesh.
Comparative example 1
This comparative example is used to illustrating different from suspended prop and preparation method with of the invention.
This comparative example from suspended prop be the quartz sand that does not do any treatment.
Comparative example 2
(1) with quartz sand (particle diameter is 6-10 mesh) as raw material, after drying 5h through scouring, 120 DEG C,
The quartz sand for screening 6-40 mesh is aggregate；
(2) quartz sand of 100 weight portions screening is taken, 240 DEG C are heated to, epoxy resin E-51 (618) is added
0.6 weight portion, adds the weight portion of curing agent phthalic anhydride 0.006, is uniformly mixed that to obtain this right
Ratio from suspended prop.
Comparative example 3
Prepared from suspended prop using expanding material composition same as Example 1 and preparation method,
Except that, it is added without Arabic gum in expanding material composition.
Comparative example 4
Prepared from suspended prop using expanding material composition same as Example 1 and preparation method,
Except that, it is added without polyacrylamide in expanding material composition.
Comparative example 5
Prepared from suspended prop using expanding material composition same as Example 1 and preparation method,
Except that, polyacrylamide the PPOX of weight such as is replaced with into (purchased from Jiangsu Province Hai'an stone
Oiling factory, PPG8000)
Testing example 1
The preparation of active water：The PAMA (3,000,000) of 0.25g is dissolved in 488.65g
Water in, be well mixed, obtain viscous water；The OP-10 of 1g is dissolved in the viscous water of acquisition, is mixed
Close uniform；10g potassium chloride is added, is stirred；0.1g formaldehyde is added, is stirred.
Test method：By embodiment 1-8, comparative example 1-5 from suspended prop respectively in active water
Liquid viscosity, solid-carrying performance and frictional resistance parameter testing are carried out, viscosity determining procedure is referring to standard
(SYT5107-2005)；Sinking speed is determined and uses 0.5m lucite tubes, loads 45cm work high
Property water and sand than the proppant for 30%, shake up the sinking speed of test proppant；Frictional resistance uses DV-III
Viscosimeter, configuration 30% sand than pressure break system, rotating speed is 100rpm, and the moment of torsion for determining them carrys out table
Levy the frictional resistance of proppant.Test result is as shown in table 1 below：
Table 1
From table 1 data can be seen that prepared by expanding material composition of the invention from suspended prop
Possess excellent prop-carrying capacity and drop frictional resistance ability in active water.By expanding material composition of the invention
Proppant body surface is coated on, expanding material composition can be with Fast-swelling, in proppant in water
Grain outer surface forms firm hydrated sheath, reduces the relative density from suspended proppant particles, expands material
A small amount of organic molecule in feed composition can be stretched in water, increase the viscosity of water, and this is also beneficial to certainly
Suspension of the suspended proppant particles in water.Without additionally adding macromolecular compound in fracturing fluid, reduce
The viscosity of fracturing fluid, reduce the conveying difficulty of fracturing fluid, it is to avoid macromolecular compound is with fracturing fluid
Into underground, oil-gas mining hole is blocked, decrease pollution of the macromolecular compound to ground environment.
Expanding material of the invention is can be seen that from embodiment 1 and the Data Comparison of comparative example 1-2 to combine
Thing prepare from suspended prop with do not make the proppant aggregate of any cladding and only coated binding agent
Proppant particles compare, its sinking speed and frictional resistance are lower, and the viscosity of the active water for obtaining is also smaller,
Illustrate expanding material composition preparation of the invention possesses more excellent prop-carrying capacity from suspended prop
With drop frictional resistance ability.
Be can be seen that from the Data Comparison of embodiment 1 and comparative example 3-4 independent relative in comparative example 3
It is of the invention using natural macromolecular material Arabic gum is used alone in polyacrylamide and comparative example 4
Be applied in combination with more preferable effect for polyacrylamide and natural macromolecular material by expanding material composition.
Embodiment 1 can be seen that with the Data Comparison of comparative example 5 and coat support relative to using other polymers
Agent particle, the proppant particles coated using expanding material composition of the invention are had preferably from suspension
Ability and drop frictional resistance ability.
Be can be seen that in currently preferred polypropylene from the Data Comparison of embodiment 1 and embodiment 7-8
The weight average molecular weight of acid amides is that the particle diameter of the aggregate of 300-2200 ten thousand and proppant is the situation of 6-200 mesh
Under, the prop-carrying capacity from suspended prop and drop frictional resistance energy prepared by expanding material composition of the invention
Power is more prominent.
Testing example 2
The proppant of embodiment 1-8, comparative example 1-5 is carried out into liquid viscosity in clear water respectively, sand is taken
Performance and frictional resistance parameter testing, viscosity determining procedure is referring to standard (SYT5107-2005)；Sedimentation speed
Degree is determined and uses 0.5m lucite tubes, loads 45cm active waters high and sand than the support for 30%
Agent, shakes up the sinking speed of test proppant；Frictional resistance use DV-III viscosimeters, configuration 30% sand than
Pressure break system, fixed rotating speed and rotor, determine their moment of torsion to characterize.Test result is as shown in table 2：
Table 2
From table 2 data can be seen that prepared by expanding material composition of the invention from suspended prop
Possess excellent prop-carrying capacity and drop frictional resistance ability in riverfrac treatment system.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in range of the technology design of the invention, can be to technical side of the invention
Case carries out various simple variants, and these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means.In order to avoid need not
The repetition wanted, the present invention is no longer separately illustrated to various possible combinations.
Additionally, can also be combined between a variety of implementation methods of the invention, as long as its
Without prejudice to thought of the invention, it should equally be considered as content disclosed in this invention.
Claims (16)
1. a kind of expanding material composition containing polyacrylamide, it is characterised in that the expanding material group
Compound contains polyacrylamide and natural macromolecular material, wherein, relative to the polypropylene of 100 weight portions
Acid amides, the content of the natural macromolecular material is 1-15 weight portions, and the natural macromolecular material
It is natural plant gum family macromolecule material and/or animal glue family macromolecule material.
2. composition according to claim 1, it is characterised in that the weight of the polyacrylamide
Average molecular weight is 300-2200 ten thousand.
3. composition according to claim 1, it is characterised in that the polyacrylamide is choosing
From anion-polyacrylamide, cationic-type polyacrylamide, non-ionic polyacrylamide and both sexes
One or more in Polyacrylamide.
4. according to the composition described in claim 3, it is characterised in that the polyacrylamide for it is cloudy from
Subtype polyacrylamide.
5. composition according to claim 1, it is characterised in that the natural plant gum family macromolecule
Material is selected from one or more in Arabic gum, tragacanth, locust bean gum and rubber made from soybean cake；The animal
Glue family macromolecule material is selected from one or more in gelatine, gelatin and casein.
6. one kind is from suspended prop, it is characterised in that should include proppant body from suspended prop
And cladding or part are coated on the water-soluble intumescent material on the proppant body, the water solubility is swollen
Swollen material layer makes the expanding material group in claim 1-5 described in any one by binding agent and curing agent
Compound bonds and coats or be partly coated on the proppant body, relative to the support of 100 weight portions
Agent body, the consumption of the binding agent is 0.6-12 weight portions, and the consumption of the curing agent is 0.006-1.2
Weight portion, the consumption of the expanding material composition is 0.6-12 weight portions.
7. it is according to claim 6 from suspended prop, it is characterised in that the proppant sheet
Body is aggregate and/or pre-coated membrane bone material.
8. according to claim 7 from suspended prop, wherein, the aggregate is selected from quartz
Sand, haydite, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintering oxidation
One or more in the shell particle of zirconium, synthetic resin and crushing.
9. according to claim 7 from suspended prop, wherein, the pre-coated membrane bone material includes
Aggregate and cladding or part described in claim 8 are coated on the pre- film covered resin layer of aggregate surface.
10. according to claim 9 from suspended prop, wherein, the pre- film covered resin layer contains
Have one kind in phenolic resin, epoxy resin, furane resins, polyester resin and unsaturated polyester resin or
It is several.
11. according to claim 6 or 7 from suspended prop, it is characterised in that the support
The particle diameter of agent body is 6-200 mesh.
12. is according to claim 6 from suspended prop, it is characterised in that the bonding agent is
Selected from the one kind in phenolic resin, epoxy resin, unsaturated polyester resin and heterocyclic polymer bonding agent or
It is several；The curing agent is aliphatic amine and its addition product, tertiary amine and its salt, aromatic amine and its is modified
Body, imidazoles, acid anhydrides, acyl peroxide, lipid peroxidation, paraformaldehyde, hexamethylenetetramine, phenolic aldehyde amine,
One or more in diethylenetriamine and triethylene tetramine.
The preparation method from suspended prop described in 13. claims 6, it is characterised in that the method
Comprise the following steps：
(1) by proppant body and binding agent and curing agent, dispersion mixing is uniformly obtained at the first temperature
The granular aggregates of binding agent and/or curing agent are stained with, wherein, relative to the proppant of 100 weight portions
Body, the consumption of the binding agent is 0.6-12 weight portions, and the consumption of the curing agent is 0.006-1.2
Weight portion；
(2) expanding material composition is made to disperse with the proppant particles that obtain in (1) at the second temperature
It is well mixed so that the expanding material composition is coated in the granular aggregates, obtain granular
From suspended prop, wherein, relative to the proppant body of 100 weight portions, the expanding material combination
The consumption of thing is 0.6-12 weight portions.
14. preparation methods according to claim 13, it is characterised in that first temperature is
150-240℃；The second temperature is 80-180 DEG C.
In 15. claim 6-12 described in any one from suspended prop in terms of fluid ore deposit exploitation
Application.
16. applications according to claim 15, it is characterised in that the fluid ore deposit is selected from stone
One or more in oil, natural gas, shale oil and shale gas.
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| CN107674661A (en) * | 2017-11-09 | 2018-02-09 | 中国石油化工股份有限公司 | It is a kind of to utilize blocking agent of Oil Field Waste Solid thing production and preparation method thereof, application |
| CN108751915A (en) * | 2018-06-28 | 2018-11-06 | 中国石油天然气股份有限公司 | A kind of bottom water reservoir water blockoff pressure break overlay film proppant and preparation method |
| CN109777387A (en) * | 2019-03-05 | 2019-05-21 | 中国石油大学(华东) | A kind of refracturing diverting agent and the preparation method and application thereof |
| CN112300775A (en) * | 2020-10-08 | 2021-02-02 | 北京化科开源新材料科技有限公司 | Acrylic acid-acrylamide copolymerization combined expansion material for self-tackifying particles and preparation method of self-tackifying particles |
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