CN104962275B - A kind of fiber-reactive water fracturing fluid and its application method for compact reservoir transformation - Google Patents
A kind of fiber-reactive water fracturing fluid and its application method for compact reservoir transformation Download PDFInfo
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- CN104962275B CN104962275B CN201510288409.2A CN201510288409A CN104962275B CN 104962275 B CN104962275 B CN 104962275B CN 201510288409 A CN201510288409 A CN 201510288409A CN 104962275 B CN104962275 B CN 104962275B
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- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
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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
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
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- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
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- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
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Abstract
The invention provides a kind of fiber-reactive water fracturing fluid and its application method for compact reservoir transformation.By weight percentage, the raw material composition of the fiber-reactive water fracturing fluid includes：Friction reducer 0.05 0.1%, composite synergist 0.5 2.0%, water-soluble fibre 0.1 0.3% and water surplus.The application method of the fiber-reactive water fracturing fluid is：In pressing crack construction process, it is well mixed friction reducer, composite synergist, water-soluble fibre and water, pump is injected into stratum.Fiber-reactive water fracturing fluid provided by the invention has the characteristics that without thickening agent, injury is low, frictional resistance is small, formula is simple, configuration is easy, workable, due to without using thickening agent, residue is few, can reduce reservoir damage to greatest extent, the fracturing reform for the compact reservoir that is particularly suitable for use in.
Description
Technical field
The present invention relates to a kind of fiber-reactive water fracturing fluid and its application method for compact reservoir transformation, belong to oil
Production technique field.
Background technology
In general fracturing fluid is mainly made up of thickening agent and crosslinking agent and other additives with reservoir compatibility, due to pressure
The main purpose for splitting liquid is conveying fracturing propping agents and reduces leak-off, and generally use crosslinking agent forms it into frozen glue, have compared with
The ability of good carrying proppant and relatively low filtration capacity, but viscosity raises rapidly after being crosslinked due to fracturing fluid, in tubing string
Middle flowing has larger frictional resistance.Domestic active water pressure break mainly ensures to take the shape in sand and crack by extensive, huge discharge injection
Into, but active water pressure break construction friction under huge discharge is high.
Therefore, for compact reservoir the characteristics of, a kind of fiber-reactive water fracturing fluid is developed, be still that this area is urgently to be resolved hurrily
One of the problem of.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of fiber-reactive for compact reservoir transformation
Water fracturing fluid.The fiber-reactive water fracturing fluid does not contain thickening agent, has the advantages that injury is low, frictional resistance is small, is suitable for fine and close storage
Layer transformation uses.
Another object of the present invention is to provide a kind of above-mentioned fiber-reactive water fracturing fluid for being used for compact reservoir transformation
Application method
To achieve the above object, the invention provides it is a kind of for compact reservoir transformation fiber-reactive water fracturing fluid, with
Percentage by weight meter, its raw material composition include：Friction reducer 0.05-0.1%, composite synergist 0.5-2.0%, water-soluble fibre
0.1-0.3% and water surplus.
In the above-mentioned fiber-reactive water fracturing fluid for being used for compact reservoir transformation, it is preferable that the friction reducer include Ah
Draw one or more of combinations in primary glue, gelatin, algin, carragheen, konjac glucomannan and locust bean gum etc..If the friction reducer
Including two or more in the material, then they can be mixed with arbitrary proportion.
It is used in above-mentioned in the fiber-reactive water fracturing fluid of compact reservoir transformation, it is preferable that with the composite synergist
Gross weight on the basis of, the raw material of composite synergist composition includes：Cationic surfactant 10-20%, nonionic table
Face activating agent 5-10%, long chain alkylammonium salts 10-30%, villaumite 8-40%, the alcohol 20-40% and water surplus of low molecule amount.
It is used in above-mentioned in the fiber-reactive water fracturing fluid of compact reservoir transformation, it is preferable that the cationic surface is lived
Property agent includes cetylpyridinium chloride and/or chlorination octadecylpyridinium etc..If the cationic surfactant includes institute
Two kinds in material are stated, then they can be mixed with arbitrary proportion.
It is used in above-mentioned in the fiber-reactive water fracturing fluid of compact reservoir transformation, it is preferable that the non-ionic surface is lived
Property agent includes alkylphenol-polyethenoxy poly- methyl oxygen vinethene, AEO, APES and nonyl
One or more of combinations in phenol polyethenoxy ether etc..If the nonionic surfactant includes two kinds in the material
More than, then they can be mixed with arbitrary proportion.
It is used in above-mentioned in the fiber-reactive water fracturing fluid of compact reservoir transformation, it is preferable that the long chain alkylammonium salts
Including 12~Cetyltrimethylammonium bromide, 12~octadecyl benzyl dimethyl ammonium chloride and 12~octadecane
One or more of combinations in base benzyltrimethylammonium chloride etc..If the long chain alkylammonium salts include two in the material
More than kind, then they can be mixed with arbitrary proportion.
It is used in above-mentioned in the fiber-reactive water fracturing fluid of compact reservoir transformation, it is preferable that the villaumite includes chlorination
One or more of combinations in ammonium, sodium chloride and potassium chloride etc..If the villaumite include the material in it is two or more,
They can be mixed with arbitrary proportion.
It is used in above-mentioned in the fiber-reactive water fracturing fluid of compact reservoir transformation, it is preferable that the alcohol of the low molecule amount
Including one or more of combinations in methanol, ethanol, ethylene glycol, isopropanol and propane diols etc..If the alcohol of the low molecule amount
Including two or more in the material, then they are mixed with arbitrary proportion.
The present invention be used for compact reservoir transformation fiber-reactive water fracturing fluid in, the composite synergist can pass through by
Cationic surfactant, nonionic surfactant, long chain alkylammonium salts, villaumite, the alcohol of low molecule amount and water mixing are equal
It is even and be prepared.
It is used in above-mentioned in the fiber-reactive water fracturing fluid of compact reservoir transformation, it is preferable that the water-soluble fibre bag
Include linear water-soluble fibre and/or slightly forniciform water-soluble fibre etc..Wherein, the slightly forniciform water-soluble fibre
Degree of crook conventional selection and regulation and control can be carried out by those skilled in the art.
It is used in above-mentioned in the fiber-reactive water fracturing fluid of compact reservoir transformation, it is preferable that the water-soluble fibre bag
Include one or more of in polypropylene fibre, polyethylene fibre, polyacrylonitrile fibre, vinal and polyester fiber etc.
Combination.If including two or more in the material, they can be mixed the water-soluble fibre with arbitrary proportion.
It is used in above-mentioned in the fiber-reactive water fracturing fluid of compact reservoir transformation, it is preferable that the water-soluble fibre
Performance parameter is：(1) fibre tensile strength is：20MPa-300MPa；(2) fiber real density is：0.98g/cm3-1.326g/
cm3；(3) fibre length is：3mm-5mm；(4) fibre diameter is：25μm-150μm.
In the present invention, above-mentioned all substances are commercially available prod.
In the present invention, each raw material in the above-mentioned fiber-reactive water fracturing fluid for compact reservoir transformation can be prior
Pressing crack construction is used further to after well mixed；It can also individually deposit, and be well mixed during pressing crack construction.
According to the embodiment of the present invention, it is preferable that the above-mentioned fiber-reactive hydraulic pressure for being used for compact reservoir transformation
Liquid is split to be prepared by the following method to obtain：(1) in pressing crack construction process, (water refers to institute to addition water in Agitation Tank
State the water in the raw material composition of fiber-reactive water fracturing fluid), under conditions of stirring or circulation, friction reducer is added, is well mixed,
Obtain the friction reducer aqueous solution；(2) in the infusion fracturing fluid step in pressing crack construction process, composite synergist is passed through into mulling bucket
Proportioning pump be added in the friction reducer aqueous solution, obtain the mixed solution of composite synergist and friction reducer；(3) and then by water
Soluble fiber adds mulling bucket, is well mixed with the composite synergist with the mixed solution of friction reducer, obtains described for causing
The fiber-reactive water fracturing fluid of close reservoir reconstruction；(4) the fiber-reactive hydraulic pressure for compact reservoir transformation is split into liquid pump note
Enter to stratum.
On the other hand, present invention also offers a kind of above-mentioned fiber-reactive water fracturing fluid for being used for compact reservoir transformation
Application method, it comprises the following steps：(1) in pressing crack construction process, (water refers to the fiber to addition water in Agitation Tank
Water in the raw material composition of active water fracturing fluid), under conditions of stirring or circulation, friction reducer is added, is well mixed, is dropped
The resist aqueous solution；(2) in the infusion fracturing fluid step in pressing crack construction process, the ratio by composite synergist by mulling bucket
Pump is added in the friction reducer aqueous solution, obtains the mixed solution of composite synergist and friction reducer；(3) and then will be water-soluble fine
Dimension adds mulling bucket, is well mixed with the composite synergist with the mixed solution of friction reducer, obtains described being used for compact reservoir
The fiber-reactive water fracturing fluid of transformation；(4) the fiber-reactive hydraulic pressure for compact reservoir transformation is split into liquid pump and is injected into ground
Layer.
In the fiber-reactive water fracturing fluid transformed provided by the present invention for compact reservoir, the drag reduction effect of the friction reducer
Fruit is obvious；The one multiple-effect of composite synergist, by increasing capacitance it is possible to increase the dispersiveness of fiber, to improve the prop-carrying capacity of fracturing fluid, side
Breaking glue solution is helped to return row, reduce clay swell and migration caused by filtrate；The water-soluble fibre can improve fracturing fluid and take sand energy
Power, active water fracturing fluid is injected without very big discharge capacity, can further reduce frictional resistance, and be nearly free from after Fibrinolysis
Residue, injury is not produced.Fiber-reactive water fracturing fluid provided by the invention has without thickening agent, injury is low, frictional resistance is small, formula
Simply, the features such as easy, workable is configured, because without using thickening agent, residue is few, can reduce reservoir to greatest extent
Injury.And compact reservoir pore throat is tiny, clay mineral content is high, injury is inevitably generated using conventional fracturing fluid, is reduced
The effect of pressing crack construction, but fiber-reactive water fracturing fluid provided by the invention is particularly suitable for use in the fracturing reform of compact reservoir.
Brief description of the drawings
Fig. 1 is the resistance-reducing yield curve for the fiber-reactive water fracturing fluid of compact reservoir transformation.
Embodiment
In order to which technical characteristic, purpose and the beneficial effect of the present invention is more clearly understood, now to the skill of the present invention
Art scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
Embodiment 1
A kind of fiber-reactive water fracturing fluid for compact reservoir transformation is present embodiments provided, by weight percentage,
Its raw material composition includes：Friction reducer 0.1%, composite synergist 1.2%, water-soluble fibre 0.3% and water surplus.Wherein, institute
State algin and 0.05% locust tree of the friction reducer by 0.05% (on the basis of the gross weight of the fiber-reactive water fracturing fluid)
Bean gum forms.On the basis of the gross weight of the composite synergist, its by isopropanol 20%, chlorination octadecylpyridinium 20%,
The poly- methyl oxygen vinethene 5% of alkylphenol-polyethenoxy, APES 5%, cetyl trimethylammonium bromide 15%,
Dodecylbenzyl alkyl dimethyl ammonium chloride 5%, potassium chloride 10% and water surplus composition, the composite synergist are by by respectively
Raw material mixes and stirs and be made.The water-soluble fibre pacifies weight by polyacrylonitrile fibre and vinal
Than 3:1 composition；The performance parameter of the polyacrylonitrile fibre is：Fibre tensile strength is 159MPa, and fiber real density is
0.998g/cm3, fibre length 5mm, fibre diameter is 75 μm；The performance parameter of the vinal is：Fiber tension
Intensity is 210MPa, and fiber real density is 1.129g/cm3, fibre length 5mm, fibre diameter is 124 μm.
Embodiment 2
A kind of fiber-reactive water fracturing fluid for compact reservoir transformation is present embodiments provided, by weight percentage,
Its raw material composition includes：Friction reducer 0.08%, composite synergist 1.0%, water-soluble fibre 0.2% and water surplus.Wherein, institute
It is konjac glucomannan to state friction reducer.On the basis of the gross weight of the composite synergist, it is by ethanol 30%, cetylpyridinium chloride
10%th, AEO 10%, dodecylbenzyl trimethyl ammonium chloride 20%, Cetyltrimethylammonium bromide
5%th, potassium chloride 20% and water surplus composition, the composite synergist be by each raw material is mixed and stirred and
It is made.The water-soluble fibre is polyacrylonitrile fibre；The performance parameter of the polyacrylonitrile fibre is：Fibre tensile strength is
159MPa, fiber real density are 0.998g/cm3, fibre length 5mm, fibre diameter is 75 μm.
Embodiment 3
A kind of fiber-reactive water fracturing fluid for compact reservoir transformation is present embodiments provided, by weight percentage,
Its raw material composition includes：Friction reducer 0.05%, composite synergist 0.5%, water-soluble fibre 0.1% and water surplus.Wherein, institute
It is Arabic gum to state friction reducer.On the basis of the gross weight of the composite synergist, it is by ethanol 30%, hexadecyl pyrrole
Pyridine 10%, AEO 10%, dodecylbenzyl trimethyl ammonium chloride 20%, Cetyltrimethylammonium bromide
5%th, potassium chloride 20% and water surplus composition, the composite synergist be by each raw material is mixed and stirred and
It is made.The water-soluble fibre is polyethylene fiber peacekeeping vinal；The performance parameter of the polyethylene fibre is：Fiber
Tensile strength is 75MPa, and fiber real density is 0.985g/cm3, fibre length 3mm, fibre diameter is 88 μm；It is described poly-
The performance parameter of alcohol fibers is：Fibre tensile strength is 210MPa, and fiber real density is 1.129g/cm3, fibre length
For 5mm, fibre diameter is 124 μm.
Embodiment 4
A kind of application method of the above-mentioned fiber-reactive water fracturing fluid for being used for compact reservoir transformation is present embodiments provided,
It comprises the following steps：(1) in pressing crack construction process, (water refers to the fiber-reactive hydraulic pressure to addition water in Agitation Tank
Split the water in the raw material composition of liquid), under conditions of stirring or circulation, friction reducer is added, is well mixed, it is water-soluble to obtain friction reducer
Liquid；(2) in the infusion fracturing fluid step in pressing crack construction process, composite synergist is added to by the proportioning pump of mulling bucket
In the friction reducer aqueous solution, the mixed solution of composite synergist and friction reducer is obtained；(3) and then by water-soluble fibre add mixed
Sand hopper, it is well mixed with the composite synergist with the mixed solution of friction reducer, obtains the fibre for compact reservoir transformation
Tie up active water fracturing fluid；(4) the fiber-reactive hydraulic pressure for compact reservoir transformation is split into liquid pump and is injected into stratum.
Experimental example 1
Curve of the frictional resistance with displacement variation can be obtained using visual Simulation pressure break support section system, to reflect pressure
Liquid is split in frictional resistance caused by work progress.The visual Simulation pressure break support section system is Application No.
201220133225.0, applying date 2012.03.31, notification number are disclosed in CN202494617U utility model patent
Seam in liquid take sand analogue experiment installation.The application is cited in full text the license text in this, as reference.The dress
It is that a kind of simulation fracturing fluid injects stratum real process and reflects the instrument of Parameters variation during it to put, and it is by with liquid and crosslinking
Agent adds simulation system, proppant addition system, pump, liquid heating and cutting system, tubular type (foam) rheology simulation system, regarded
Change the control of seam inner support agent section plane test computer to form with data collecting system, cardinal principle is in simulation pressing crack construction process
Friction and drop resistance process of the fracturing fluid in pipeline, the data that wherein data collecting system is collected are used to analyze.Test resistance-reducing yield
Specific experiment process it is as follows：(1) fiber-reactive water fracturing fluid injection visualization mould clear water, embodiment 1~3 being provided respectively
Intend pressure break support section system；(2) pressure of the liquid of inlet and outlet pipeline, inlet and outlet pipe are tested respectively with pressure gauge
The pressure differential of the liquid on road is represented with △ P.△ P when being tested with clear water are wherein set as △ PWater, set and use fiber-reactive hydraulic pressure
△ P when splitting liquid experiment are △ PPressure；(3) resistance-reducing yield=(△ P are utilizedWater-△PPressureThe ÷ △ of) × 100% PWaterFormula calculate drop resistance
Rate.Fig. 1 is the resistance-reducing yield curve that the fiber-reactive hydraulic pressure that embodiment 1~3 provides splits.As seen from Figure 1, embodiment 1~3 carries
When the resistance-reducing yield that the fiber-reactive hydraulic pressure of confession splits is more than discharge capacity 6L/min, resistance-reducing yield is more than 50%.
Experimental example 2
The fiber-reactive water fracturing fluid of composite synergist containing the present invention can improve fiber dispersion, can make pressure break
Fibrous reticular structure is finer and closely woven in liquid, fracturing fluid is taken grittiness raising, slows down the rate of settling of the proppant in fracturing fluid.This
Experimental example is contrasted in room temperature using static lifting sand experiment, clear water, the active water fracturing fluid for not adding composite synergist of the invention
The proppant settlement rate of the fiber-reactive water fracturing fluid containing composite synergist provided with embodiment 1~3, by settling speed
The raising of rate reflection fracturing fluid prop-carrying capacity and the improvement of fiber dispersion.Specific evaluation method is as follows：(1) added in beaker
Water, under agitation, friction reducer, composite synergist and water-soluble fibre are added according to the ratio in embodiment 1~3 respectively,
After well mixed, the fiber-reactive water fracturing fluid containing composite synergist is obtained；(2) to add the fiber-reactive water after proppant
The gross weight benchmark of fracturing fluid, 20% proppant is added to the fiber-reactive water fracturing fluid containing composite synergist
In, poured into after stirring in 100mL graduated cylinders；(3) graduated cylinder is made to stand 120min at room temperature, record sand is heavy in graduated cylinder
Drop height, and calculates the rate of settling (rate of settling=settling height/120min), clear water and does not add of the invention compound wherein
The rate of settling experiment of the active water fracturing fluid of synergist is same as the above-mentioned method.Experimental result is as shown in table 1.The rate of settling
Smaller explanation fiber dispersion is good, and it is good that fracturing fluid takes grittiness.As shown in Table 1, water-soluble fibre can improve fracturing fluid in itself
Solid-carrying performance；And the composite synergist of the present invention increases the scattered of fiber, the solid-carrying performance of fracturing fluid is further increased.
The proppant settlement rate contrast table of table 1
Experimental example 3
By the fiber-reactive water fracturing fluid that above-described embodiment 1~3 provides according to SY/T5755-1995 standard test surfaces
Power.Experimental result is shown in Table 2.
The fiber-reactive water fracturing fluid surface tension of table 2
| Sequence number | Surface tension, mN/m |
| Embodiment 1 | 18.5 |
| Embodiment 2 | 21.3 |
| Embodiment 3 | 25.3 |
Composite synergist in embodiment 1~3 it can be seen from the data in table 2 can effectively reduce fiber-reactive water
The surface tension of fracturing fluid, improve its row's of returning ability.
Experimental example 4
This tests the residue of the fiber-reactive water fracturing fluid for detecting the offer of embodiment 1~3.Experimental method is with reference to oil
Gas Industry standard SY/T5107-2005《Aqueous fracturing fluid method of evaluating performance》；Measuring apparatus be centrifuge, water-bath,
Electronic balance etc..Experimental result is shown in Table 3, and experiment is shown, the residue content for the fiber-reactive water fracturing fluid that embodiment 1~3 provides
It is very low.
The fiber-reactive water fracturing fluid residue content of table 3
| Sequence number | Residue content, mg/L |
| Embodiment 1 | 49.2 |
| Embodiment 2 | 40.3 |
| Embodiment 3 | 28.3 |
Fracturing fluid residue is the fibre containing composite synergist that embodiment 1~3 provides the main reason for causing formation damage
It is low to tie up the residue content of active water fracturing fluid, reservoir damage can be substantially reduced, is advantageous to carrying for flow conductivity and oil and gas production
Rise.Compact reservoir for being easy to injury, the fiber-reactive water fracturing fluid are particularly suitable.
Experimental example 5
It is respectively 4.42 × 10 using 3 pieces of perm-plug methods-3μm2、5.35×10-3μm2With 5.18 × 10-3μm2It is artificial
Rock core, at normal temperatures, the fiber-reactive water fracturing fluid provided using embodiment 1~3 carry out rock core flowing experiment, test its injury
Rate.Experimental method uses oil and gas industry standard SY/T5107-2005《Aqueous fracturing fluid method of evaluating performance》In《Rock
Grieved harmful test method》.Experimental result is shown in Table 4, and experiment shows the residue for the fiber-reactive water fracturing fluid that embodiment 1~3 provides
It is small, injury rate is low, smaller to formation damage.
The fiber-reactive water fracturing fluid injury rate of table 4
| Sequence number | Injury rate, mg/L |
| Embodiment 1 | 14.3 |
| Embodiment 2 | 12.8 |
| Embodiment 3 | 7.6 |
Fiber-reactive water fracturing fluid provided by the invention has without thickening it can be seen from above-described embodiment and experimental example
The features such as agent, low, frictional resistance is small, formula is simple, configuration is easy, workable injury, because without using thickening agent, residue is few,
Reservoir damage can be reduced to greatest extent, the fracturing reform for the compact reservoir that is particularly suitable for use in.
Claims (11)
1. a kind of fiber-reactive water fracturing fluid for compact reservoir transformation, by weight percentage, its raw material composition include：Drop
Resist 0.05-0.1%, composite synergist 0.5-2.0%, water-soluble fibre 0.1-0.3% and water surplus；Wherein,
On the basis of the gross weight of the composite synergist, the raw material composition of the composite synergist includes：Cationic surface is lived
Property agent 10-20%, nonionic surfactant 5-10%, long chain alkylammonium salts 10-30%, villaumite 8-40%, low molecule amount
Alcohol 20-40% and water surplus；
The cationic surfactant includes cetylpyridinium chloride and/or chlorination octadecylpyridinium；
The nonionic surfactant includes the one or more in AEO and APES
Combination.
2. the fiber-reactive water fracturing fluid according to claim 1 for compact reservoir transformation, wherein, the alkyl phenol gathers
Oxygen vinethene is NPE.
3. the fiber-reactive water fracturing fluid according to claim 1 for compact reservoir transformation, wherein, the friction reducer bag
Include one or more of combinations in Arabic gum, gelatin, algin, carragheen, konjac glucomannan and locust bean gum.
4. the fiber-reactive water fracturing fluid according to claim 1 for compact reservoir transformation, wherein, the chain alkyl
Ammonium salt includes 12~Cetyltrimethylammonium bromide, 12~octadecyl benzyl dimethyl ammonium chloride and 12~ten
One or more of combinations in eight alkyl benzyl trimethyl ammonium chlorides.
5. the fiber-reactive water fracturing fluid according to claim 1 for compact reservoir transformation, wherein, the villaumite includes
One or more of combinations in ammonium chloride, sodium chloride and potassium chloride.
6. the fiber-reactive water fracturing fluid according to claim 1 for compact reservoir transformation, wherein, the low molecule amount
Alcohol include methanol, ethanol, ethylene glycol, isopropanol and propane diols in one or more of combinations.
7. the fiber-reactive water fracturing fluid according to claim 1 for compact reservoir transformation, wherein, it is described water-soluble fine
Dimension includes linear water-soluble fibre and/or slightly forniciform water-soluble fibre.
8. the fiber-reactive water fracturing fluid for being used for compact reservoir transformation according to claim 1 or 7, wherein, it is described water-soluble
Property fiber include polypropylene fibre, polyethylene fibre, polyacrylonitrile fibre, vinal and polyester fiber in one kind or
Several combinations.
9. the fiber-reactive water fracturing fluid for being used for compact reservoir transformation according to claim 1 or 7, wherein, it is described water-soluble
The performance parameter of property fiber is：(1) fibre tensile strength is：20MPa-300MPa；(2) fiber real density is：0.98g/
cm3-1.326g/cm3；(3) fibre length is：3mm-5mm；(4) fibre diameter is：25μm-150μm.
10. the fiber-reactive water fracturing fluid according to claim 8 for compact reservoir transformation, wherein, the water solubility
The performance parameter of fiber is：(1) fibre tensile strength is：20MPa-300MPa；(2) fiber real density is：0.98g/cm3-
1.326g/cm3；(3) fibre length is：3mm-5mm；(4) fibre diameter is：25μm-150μm.
11. the application method of the fiber-reactive water fracturing fluid for being used for compact reservoir transformation described in claim any one of 1-10,
It comprises the following steps：(1) in pressing crack construction process, water is added in Agitation Tank, under conditions of stirring or circulation, is added
Friction reducer, it is well mixed, obtains the friction reducer aqueous solution；(2), will be compound in the infusion fracturing fluid step in pressing crack construction process
Synergist is added in the friction reducer aqueous solution by the proportioning pump of mulling bucket, obtains the mixing of composite synergist and friction reducer
Solution；(3) mulling bucket and then by water-soluble fibre is added, is mixed with the composite synergist with the mixed solution of friction reducer
It is even, obtain the fiber-reactive water fracturing fluid for compact reservoir transformation；(4) by the fiber for compact reservoir transformation
Active water fracturing fluid pump is injected into stratum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288409.2A CN104962275B (en) | 2015-05-29 | 2015-05-29 | A kind of fiber-reactive water fracturing fluid and its application method for compact reservoir transformation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288409.2A CN104962275B (en) | 2015-05-29 | 2015-05-29 | A kind of fiber-reactive water fracturing fluid and its application method for compact reservoir transformation |
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| Publication Number | Publication Date |
|---|---|
| CN104962275A CN104962275A (en) | 2015-10-07 |
| CN104962275B true CN104962275B (en) | 2017-12-05 |
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