CN101747880B - Deep-water low-temperature low-density early-strength cementing slurry for well cementation - Google Patents
Deep-water low-temperature low-density early-strength cementing slurry for well cementation Download PDFInfo
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Abstract
The invention relates to deep-water low-temperature low-density early-strength cementing slurry for well cementation in petroleum drilling engineering, which contains 100 parts of low-temperature early-strength cement, 10 to 30 parts of low-temperature reinforcing material, 10 to 80 parts of low-density light-weight material, 0.5 to 4 parts of drag reducer, 2.5 to 8 parts of fluid loss additive, 0.1 to 5 parts of retarder, 0.15 to 1.2 parts of defoamer, 2.5 to 8 parts of early strength agent and 57 to 95 parts of water, and slurry with the density of 1.2g/cm3 to 1.7g/cm3 can be prepared. The slurry system at least has the following advantages that: the maximum early strength (24 hours) can reach 14.7MPa, the long-term strength stability is good, the static gelling transition time is short, and the system is stable. The invention provides technical support for the quality of deep-water well cementation.
Description
Technical field
The present invention is a kind of petroleum drilling engineering field, particularly cementing technology a kind of deep-water low-temperature low-density early-strength cementing slurry for well cementation used, for deep-water low-temperature, cements the well.
Background technology
World ocean reserves of oil amount is about more than 1,000 hundred million tons, more than 380 hundred million tons of proven reserve; The ocean natural gas reserves are about 140 tcms, and explored reserves are about 40 tcms.The ocean mean depth is 3730 meters, 73.83% of Zhan Liao ocean, the marine site total area of 3000 meters～6000 meters depth of waters.But 80% of current explored marine oil reserves still concentrate on 500 meters depth of waters with interior zone, nearly national fishing shelf, and this explanation is also being contained the hydrocarbon rich resource of not exploratory development in the seabed of deep water (500 meters-1500 meters) even super deep water (more than 1500 meters).Over the ocean deepwater drilling more than 300 meters is annual all over the world, there are a large amount of operations, the highest depth of water degree of depth to reach nearly 3000 meters at present.
Deep water cementing is precondition and the important leverage that the deep water hydrocarbon resources exploration effectively carries out, but deep water cementing especially its topographical condition of deep water top layer section well cementing operation relative land operation is more complicated, the stratum, seabed is soft, and formation-parting pressure is low, and easily produces fluid and move.Deep water cementing seabed formation temperature is low, suppresses the hydration process of oil well cement, and the average daily somewhat expensive of deepwater work, and the day of ship unit is taken generally between 22～300,000 dollars.Generally the temperature in seabed is very low, only has 4 ℃ of left and right, has delayed the aquation of cement, has affected the development of strength of cement, can not effectively resist the intrusion of fluid and guarantee carrying out smoothly of subsequent job.Between top layer formation pore pressure and parting pressure, " window " is narrow, and easily press leakage on stratum, requires to use low-density cement mortar when well cementation, and density is at 1.32～1.56g/cm
3Between, this has higher requirement to the performance of grout.Be rich in villaumite and multiple high-valency metal example in seawater, can produce corrosion to cementing concrete, destroy its long-term behaviour.Therefore, require cementing concrete to there is higher weather resistance and good over-all properties.
The deep-water low-temperature well cementation to the Essential Performance Requirements of grout is: 1. cement slurry density is low; 2. shorter transit time and good ultimate compression strength under low temperature; 3. good grout integrity; 4. the sealing on grout and sleeve pipe and stratum and the long-term performance such as cementing are good; 5. displacement efficiency is high.
At present, domestic just the beginning studied deepwater well cementing mortar, external deepwater well cementing mortar mainly contains: 1. gas-charged water Mud Technology, as EP1123907,2. high-alumina cement slurry system, as US6244343, US6060535,3. PSD grout technology, adopt conventional G level oil well cement and ultra-fine grain material-mix to form tightly packed, as the US6656265 of Schlunberger.
The subject matter existed: the high-alumina cement system is having superiority aspect the ultimate compression strength development, but strong to temperature sensitivity, and to the pollutent sensitivity, hydration heat is too fast; Gas-charged water Mud Technology complexity, cost is high; Strength development is slow at low temperatures to adopt G level oil well cement, and quiet gelling development is slow, affects the anti-channeling ability of grout, affects the deep water cementing quality, and the deep water cementing quality influence the life-span of deep water hydrocarbon well, even jeopardizes the security of oil-gas mining and platform.
Summary of the invention
The objective of the invention is: a kind of deep-water low-temperature low-density early-strength cementing slurry for well cementation is provided, in low temperature, shallow-layer stream, Absorption Wells, completes deep water cementing, improve the adaptability of cementing slurry, improve cementing quality.Carry out the research of the strong grout of low-temperature low-density early, develop in the deep-water low-temperature condition and there is the strong mortar architecture of good over-all properties low-temperature low-density early.
The technical solution used in the present invention: according to various components hydration activity difference at low temperatures, suitably improve the high component of reactive behavior under low temperature in cement, form low-temperature high-early strength cement, and coordinate other extra material and admixture, make low close short-term strength cement slurry.Deep-water low-temperature low-density early-strength cementing slurry for well cementation of the present invention is characterized in that: each constituent mass part is:
100 parts of low-temperature high-early strength cement
10～30 parts of low temperature strongtheners
10～80 parts of low density lightening materials
2.5～8 parts of hardening accelerator
0.5～4 part of flow improver
2.5～8 parts of water retainings
0.1～5 part of retardant
0.15～1.2 part of defoamer
57～95 parts, water
In above-mentioned deep-water low-temperature low-density early-strength cementing slurry for well cementation:
Described low-temperature high-early strength cement is that 100 weight part low-temperature high-early strength cement Minerals content and weight part are: SiO
2, 3～13 parts; Al
2O
3, 30～38 parts; Fe
2O
3, 1～3 part; CaO, 38～45 parts; SO
3, 8～15 parts.
Described low temperature strongthener is the ultrafine powder slag, contains following ingredients and weight part: SiO in 100 weight part ultrafine powder slags
2, 32～40 parts; Al
2O
3, 8～16 parts; Fe
2O
3, 1～3 part; CaO, 34～45 parts; MgO, 3～10 parts.This material can aquation in water be formed with the material of intensity, and the granularity of ultrafine powder slag is that particle size range is between 1～100 micron.
The low density lightening material is hollow glass micropearl or synthetic sodium boron microballon (production of 3M company).Synthetic sodium boron microballon has lower density and is generally 0.38g/cm
3Higher withstand voltage properties is arranged, reach as high as 18000psi; And granularity thin (10-80 μ m), and its material composition and some constituent class of cement are seemingly.
Described hardening accelerator is the short solidifying hardening accelerator of the CA903S of anhydrous sodium metasilicate or Tianjin Cnpc Boxing Engineering Technology Co., Ltd..The molecular formula Na of anhydrous sodium metasilicate
2SiO
3, pH value is 12.4 left and right.
Water retaining is polyacrylamide, polyvinyl alcohol, modified-cellulose or 2-acrylamide-2-methylpro panesulfonic acid (AMPS multipolymer).Polyacrylamide adopts negatively charged ion, positively charged ion or non-ionic polyacrylamide all can.Modified-cellulose is methylcellulose gum, ethyl cellulose or carboxymethyl cellulose.
The polycondensate that flow improver is formaldehyde and acetone (FDN) or metal carboxylate, metal carboxylate comprises vinylformic acid-acrylate-co-polymer of sulfonate or vinylformic acid-maleic acid
Retardant is citric acid, organic phosphate, and organic phosphate is hydroxy ethylene diphosphonic acid sodium or hydroxy ethylene diphosphonic acid potassium or ethylenediamine tetramethylene phosphonic acid salt.
Defoamer is polyglycol ether or sec-n-octyl alcohol or tributyl phosphate.
In order to improve the shock resistance of deep-water low-temperature low-density early-strength cementing slurry for well cementation, wherein can also add oil well cement toughner.Described oil well cement toughner is filamentary material or organic polymer latex.Organic polymer latex is polyvinyl acetate (PVA), polystyrene or styrene-butadiene copolymer, and filamentary material is carbon fiber or nylon fiber.Nylon fiber also claims tynex.
The preparation and application of deep-water low-temperature low-density early-strength cementing slurry for well cementation: at first be prepared into and be dry mixed material and the mixed material of liquid.By 100 parts of low-temperature high-early strength cement, 10～30 parts of low temperature strongtheners, 10～80 parts of low density lightening materials, 2.5～8 parts of hardening accelerator and 0.5～4 part of mixing and stirring of flow improver, become and be dry mixed material.By 57～95 parts, water, 2.5～8 parts of water retainings, 0.1～5 part of retardant and 0.15～1.2 part of mixing and stirring of defoamer, become the mixed material of liquid.Then will be dry mixed the mixed material of material and liquid and puddle evenly, being configured to density is 1.2～1.7g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation.On-the-spot in well cementation, at first that the mixed mixing of materials of liquid is even, then add that to be dry mixed mixing of materials even, make deep-water low-temperature low-density early-strength cementing slurry for well cementation.It is high that deep-water low-temperature low-density early-strength cementing slurry for well cementation has early strength, and the intensity permanent stability are good, and quiet gelling is short transit time, the advantages such as stable system.
The present invention's beneficial effect compared with prior art:
1, strength development is fast at low temperatures for deep-water low-temperature low-density early-strength cementing slurry for well cementation of the present invention, within 24 hours, can reach 14.7MPa, even still have higher early strength in the time of 4 ℃.
2, deep-water low-temperature low-density early-strength cementing slurry for well cementation of the present invention, overcome the problem of the poor stability of common low-density cement mortar, has good suspension stability, and the difference of densities of Behavior of Hardened Cement Paste is less than 0.05g/cm
3.
3. deep-water low-temperature low-density early-strength cementing slurry for well cementation of the present invention, adopt tightly packed design concept, and rate of permeation is low, and the Behavior of Hardened Cement Paste permanent stability are good, and the static gel strength development is fast, has good anti-gas channeling ability.
4, deep-water low-temperature low-density early-strength cementing slurry for well cementation of the present invention, have that rheological is good, dehydration is little, the thickening time is easy to regulate, and facilitates site operation.
Deep-water low-temperature low-density early-strength cementing slurry for well cementation of the present invention, solved the cementing technology difficult problem of deep water top layer low temperature, saves the oilwell drilling time, is conducive to improve cementing quality, for the deep water hydrocarbon exploitation provides technical support.
Embodiment:
Embodiment 1: density is 1.7g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation: each component is by weight.
100 parts of low-temperature high-early strength cement.Low-temperature high-early strength cement Minerals content and weight part at 100 weight parts are: SiO
2, 10 parts; Al
2O
3, 35 parts; Fe
2O
3, 2 parts; CaO, 43 parts; SO
3, 10 parts.
20 parts of low temperature strongtheners.The low temperature strongthener is the ultrafine powder slag, contains following ingredients and weight part: SiO in the ultrafine powder slag of 100 weight parts
2, 38 parts; Al
2O
3, 12 parts; Fe
2O
3, 2.5 parts; CaO, 42.5 parts; MgO, 5 parts.The particle size range of ultrafine powder slag is 45 microns.
10 parts of low density lightening materials.What the low density lightening material adopted is hollow glass micropearl.
2.5 parts of hardening accelerator.What hardening accelerator adopted is the short solidifying hardening accelerator of CA903S that Tianjin Cnpc Boxing Engineering Technology Co., Ltd. produces.
0.5 part of flow improver.What flow improver adopted is formaldehyde and acetone polycondensate (FDN).
2.5 parts of water retainings.What water retaining adopted is polyvinyl alcohol.
1.2 parts of retardant.What retardant adopted is citric acid.
Defoamer, 0.15 part.What defoamer adopted is sec-n-octyl alcohol or tributyl phosphate.
Seawater, 57 parts.
Embodiment 2: density is 1.5g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation: each component is by weight.
100 parts of low-temperature high-early strength cement.Low-temperature high-early strength cement Minerals content and weight part at 100 weight parts are: SiO
2, 8 parts; Al
2O
3, 37 parts; Fe
2O
3, 2 parts; CaO, 38 parts; SO
3, 15 parts.
25 parts of low temperature strongtheners.The low temperature strongthener is the ultrafine powder slag, contains following ingredients and weight part: SiO in the ultrafine powder slag of 100 weight parts
2, 35 parts; Al
2O
3, 14 parts; Fe
2O
3, 1.5 parts; CaO, 40 parts; MgO, 9.5 parts.The particle size range of ultrafine powder slag is between 45～90 microns.
25 parts of low density lightening materials; What the low density lightening material adopted is synthetic sodium boron microballon, and granularity is between 10-80 μ m, and synthetic sodium boron microballon is produced by 3M company.
4 parts of hardening accelerator.The anhydrous sodium metasilicate that hardening accelerator adopts.
1.5 parts of flow improvers.What flow improver adopted is vinylformic acid-maleic acid.
5 parts of water retainings.What water retaining adopted is 2-acrylamide-2-methylpro panesulfonic acid (AMPS multipolymer).
1.2 parts of retardant.What retardant adopted is citric acid.
Defoamer, 0.2 part.What defoamer adopted is polyglycol ether.
Fresh water, 67 parts.
Embodiment 3: density is 1.4g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation: each component is by weight.
100 parts of low-temperature high-early strength cement at low-temperature high-early strength cement Minerals content and the weight part of 100 weight parts are: SiO
2, 5 parts; Al
2O
3, 34 parts; Fe
2O
3, 3 parts; CaO, 44 parts; SO
3, 14 parts.
25 parts of low temperature strongtheners; The low temperature strongthener is the ultrafine powder slag, contains following ingredients and weight part: SiO in the ultrafine powder slag of 100 weight parts
2, 33 parts; Al
2O
3, 15 parts; Fe
2O
3, 3 parts; CaO, 42 parts; MgO, 7 parts.The particle size range of ultrafine powder slag is between 45～90 microns.
35 parts of low density lightening materials.What the low density lightening material adopted is hollow glass micropearl.
3 parts of hardening accelerator.It is the short solidifying hardening accelerator of CA903S that Tianjin Cnpc Boxing Engineering Technology Co., Ltd. produces that hardening accelerator adopts.
2.5 parts of flow improvers.What flow improver adopted is vinylformic acid-acrylate-co-polymer of sulfonate.
6 parts of water retainings.What water retaining adopted is polyacrylamide.
1 part of retardant.What retardant adopted is hydroxy ethylene diphosphonic acid sodium.
0.2 part of defoamer.What defoamer adopted is polyglycol ether.
Seawater, 75 parts.
Embodiment 4: density is 1.2g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation: each component is by weight.
100 parts of low-temperature high-early strength cement.Low-temperature high-early strength cement Minerals content and weight part at 100 weight parts are: SiO
2, 6 parts; Al
2O
3, 36 parts; Fe
2O
3, 1.5 parts; CaO, 43 parts; SO
3, 13.5 parts.
10 parts of low temperature strongtheners; The low temperature strongthener is the ultrafine powder slag, contains following ingredients and weight part: SiO in the ultrafine powder slag of 100 weight parts
2, 39 parts; Al
2O
3, 10 parts; Fe
2O
3, 2 parts; CaO, 40 parts; MgO, 9 parts.The particle size range of ultrafine powder slag is between 60～90 microns.
65 parts of low density lightening materials.What the low density lightening material adopted is hollow glass micropearl.
3 parts of hardening accelerator.What hardening accelerator adopted is anhydrous sodium metasilicate.
3 parts of flow improvers.What flow improver adopted is vinylformic acid-maleic acid.
3 parts of water retainings.What water retaining adopted is ethyl cellulose.
0.8 part of retardant.What retardant adopted is hydroxy ethylene diphosphonic acid potassium.
Defoamer, 0.2 part.What defoamer adopted is sec-n-octyl alcohol or tributyl phosphate.
Seawater, 95 parts.
Embodiment 5: density is 1.7g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation: each component is by weight.
100 parts of low-temperature high-early strength cement.Low-temperature high-early strength cement Minerals content and weight part at 100 weight parts are: SiO
2, 3 parts; Al
2O
3, 34 parts; Fe
2O
3, 3 parts; CaO, 45 parts; SO
3, 15 parts.
20 parts of low temperature strongtheners.The low temperature strongthener is the ultrafine powder slag, contains following ingredients and weight part: SiO in the ultrafine powder slag of 100 weight parts
2, 32 parts; Al
2O
3, 16 parts; Fe
2O
3, 1 part; CaO, 45 parts; MgO, 6 parts.The particle size range of ultrafine powder slag is 45 microns.
10 parts of low density lightening materials.What the low density lightening material adopted is hollow glass micropearl.
2.5 parts of anhydrous sodium metasilicates of hardening accelerator.
1.5 parts of flow improvers.What flow improver adopted is olefin(e) acid-maleic acid.
2 parts of water retainings.What water retaining adopted is carboxymethyl cellulose.
1.2 parts of retardant.What retardant adopted is ethylenediamine tetramethylene phosphonic acid salt.
Defoamer, 0.15 part.What defoamer adopted is sec-n-octyl alcohol or tributyl phosphate.
2 parts of toughner.What toughner adopted is polyvinyl acetate (PVA).
Seawater, 57 parts.
Embodiment 6: density is 1.5g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation: each component is by weight.
100 parts of low-temperature high-early strength cement.Low-temperature high-early strength cement Minerals content and weight part at 100 weight parts are: SiO
2, 9 parts; Al
2O
3, 32 parts; Fe
2O
3, 2 parts; CaO, 43 parts; SO
3, 14 parts.
30 parts of low temperature strongtheners.The low temperature strongthener is the ultrafine powder slag, contains following ingredients and weight part: SiO in the ultrafine powder slag of 100 weight parts
2, 38 parts; Al
2O
3, 10 parts; Fe
2O
3, 3 parts; CaO, 45 parts; MgO, 4 parts.The particle size range of ultrafine powder slag is between 1～100 micron.
27 parts of low density lightening materials; What the low density lightening material adopted is synthetic sodium boron microballon, and granularity is between 10-80 μ m, and synthetic sodium boron microballon is produced by 3M company.
4 parts of hardening accelerator.What hardening accelerator adopted is the short solidifying hardening accelerator of CA903S that Tianjin Cnpc Boxing Engineering Technology Co., Ltd. produces.
1.5 parts of flow improvers.What flow improver adopted is the polycondensate (FDN) of formaldehyde and acetone.
5 parts of water retainings.What water retaining adopted is 2-acrylamide-2-methylpro panesulfonic acid (AMPS multipolymer).
1.2 parts of retardant.What retardant adopted is citric acid.
Defoamer, 0.2 part.What defoamer adopted is polyglycol ether.
5 parts of toughner.What toughner adopted is styrene-butadiene copolymer.
Fresh water, 67 parts.
Embodiment 7: density is 1.4g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation: each component is by weight.
100 parts of low-temperature high-early strength cement at low-temperature high-early strength cement Minerals content and the weight part of 100 weight parts are: SiO
2, 8 parts; Al
2O
3, 36 parts; Fe
2O
3, 2 parts; CaO, 41 parts; SO
3, 13 parts.
15 parts of low temperature strongtheners; The low temperature strongthener is the ultrafine powder slag, contains following ingredients and weight part: SiO in the ultrafine powder slag of 100 weight parts
2, 37 parts; Al
2O
3, 9 parts; Fe
2O
3, 1 part; CaO, 43 parts; MgO, 10 parts.The particle size range of ultrafine powder slag is between 5～80 microns.
30 parts of low density lightening materials.What the low density lightening material adopted is synthetic sodium boron microballon, and granularity is between 10-80 μ m, and synthetic sodium boron microballon is produced by 3M company.
2 parts of hardening accelerator.What hardening accelerator adopted is anhydrous sodium metasilicate.
2.5 parts of flow improvers.What flow improver adopted is vinylformic acid-maleic acid.
2 parts of water retainings.What water retaining adopted is polyvinyl alcohol.
1 part of retardant.What retardant adopted is citric acid.
0.2 part of defoamer.What defoamer adopted is polyglycol ether.
3 parts of toughner.What toughner adopted is carbon fiber.
Fresh water, 75 parts.
Embodiment 8: density is 1.2g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation: each component is by weight.
100 parts of low-temperature high-early strength cement.Low-temperature high-early strength cement Minerals content and weight part at 100 weight parts are: SiO
2, 6 parts; Al
2O
3, 36 parts; Fe
2O
3, 1.5 parts; CaO, 43 parts; SO
3, 13.5 parts.
10 parts of low temperature strongtheners; The low temperature strongthener is the ultrafine powder slag, contains following ingredients and weight part: SiO in the ultrafine powder slag of 100 weight parts
2, 39 parts; Al
2O
3, 10 parts; Fe
2O
3, 2 parts; CaO, 40 parts; MgO, 9 parts.The particle size range of ultrafine powder slag is between 60～90 microns.
65 parts of low density lightening materials.What the low density lightening material adopted is hollow glass micropearl.
2 parts of hardening accelerator.What hardening accelerator adopted is anhydrous sodium metasilicate.
3 parts of flow improvers.What flow improver adopted is vinylformic acid-maleic acid.
4 parts of water retainings.What water retaining adopted is 2-acrylamide-2-methylpro panesulfonic acid (AMPS multipolymer).
0.8 part of retardant.What retardant adopted is hydroxy ethylene diphosphonic acid potassium.
3 parts of toughner.What toughner adopted is nylon fiber.
0.2 part of defoamer.What defoamer adopted is sec-n-octyl alcohol or tributyl phosphate.
Seawater, 95 parts.
The performance test results list of the deep-water low-temperature low-density early-strength cementing slurry for well cementation of eight embodiment:
| Sequence number | Density g/cm 3 | Flow/cm | API dehydration/ml | Thickening time/min | Initial consistency/Bc | Stability | Free liquid/ml | 4 ℃, 16h ultimate compression strength/MPa | 4 ℃, 72h ultimate compression strength/MPa |
| 1 | 1.7 | 23 | 39 | 264 | 17 | Stable | 0 | 14.5 | 18.2 |
| 2 | 1.5 | 22 | 41 | 250 | 20 | Stable | 0 | 9.8 | 15.6 |
| 3 | 1.4 | 21 | 32 | 211 | 22 | Stable | 0 | 7.2 | 14.3 |
| 4 | 1.2 | 22.5 | 35 | 309 | 21 | Stable | 0 | 5.2 | 12.1 |
| 5 | 1.7 | 21.5 | 62 | 212 | 18 | Stable | 0 | 13.8 | 18.3 |
| 6 | 1.5 | 21 | 55 | 254 | 16 | Stable | 0 | 10.1 | 16.2 |
| 7 | 1.4 | 20.5 | 42 | 202 | 20 | Stable | 0 | 6.7 | 15.1 |
| 8 | 1.2 | 22 | 46 | 183 | 22 | Stable | 0 | 5.5 | 11.7 |
The test conditions of test is: 4 ℃ of temperature, pressure 30MPa.
Claims (1)
1. a density is 1.5g/cm
3Deep-water low-temperature low-density early-strength cementing slurry for well cementation, each component is by weight:
100 parts of low-temperature high-early strength cement at low-temperature high-early strength cement Minerals content and the weight part of 100 weight parts are: SiO
2, 9 parts; Al
2O
3, 32 parts; Fe
2O
3, 2 parts; CaO, 43 parts; SO
3,14 parts;
30 parts of low temperature strongtheners, the low temperature strongthener is ultrafine powder, contains following ingredients and weight part: SiO in the ultrafine powder of 100 weight parts
2, 38 parts; Al
2O
3, 10 parts; Fe
2O
3, 3 parts; CaO, 45 parts; MgO, 4 parts, the particle size range of ultrafine powder is between 1～100 micron;
27 parts of low density lightening materials; What the low density lightening material adopted is synthetic sodium boron microballon, and granularity is between 10-80 μ m, and synthetic sodium boron microballon is produced by 3M company;
4 parts of hardening accelerator, what hardening accelerator adopted is the short solidifying hardening accelerator of CA903S that Tianjin Cnpc Boxing Engineering Technology Co., Ltd. produces;
1.5 parts of flow improvers, what flow improver adopted is the polycondensate of formaldehyde and acetone;
5 parts of water retainings, what water retaining adopted is 2-acrylamide-2-methylpro panesulfonic acid multipolymer;
1.2 parts of retardant, what retardant adopted is citric acid;
0.2 part of defoamer, what defoamer adopted is polyglycol ether;
5 parts of toughner, what toughner adopted is styrene-butadiene copolymer;
67 parts of fresh water.
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