CN106396509B - A kind of low density and high strength cement slurry system applied widely - Google Patents
A kind of low density and high strength cement slurry system applied widely Download PDFInfo
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- CN106396509B CN106396509B CN201610662122.6A CN201610662122A CN106396509B CN 106396509 B CN106396509 B CN 106396509B CN 201610662122 A CN201610662122 A CN 201610662122A CN 106396509 B CN106396509 B CN 106396509B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of low density and high strength cement slurry systems applied widely, it is prepared by the raw material of following parts by weight: low-density and high-strength cement 65-75 parts by weight, AMPS quasi polymer fluid loss agent 0.2-2 parts by weight, polycarboxylic acids ether-ether dispersing agent 0.05-0.2 parts by weight, inorganic aluminate early strength agent 0.1-2 parts by weight, organic phosphate retarder 0.1-0.5 parts by weight, organic silicon defoamer 0.1-0.2 parts by weight, distilled water 25-35 parts by weight.The present invention passes through the selection and grain composition of active material, increase the solid phase amount in unit volume cement slurry, improve the suspension stability of low-density cement mortar, the compression strength of vena caval filter ability and Behavior of Hardened Cement Paste, the comprehensive performance and conventional density for making low-density cement mortar compare favourably, and can be used in target zone sealing operation.
Description
Technical field
The present invention relates to the field of building materials, and in particular to a kind of low density and high strength cement slurry body applied widely
System.
Background technique
For a long time, low-density cement mortar is widely used in the sealing and the long sealing of low pressure reservoir that low pressure and easy leaking loses layer
It in section well cementing operation, prevents from missing to reduce liquid column hydrostatic pressure, reduces pollution and injury of the cement slurry to reservoir.But it is common low
Density cement slurry is due to the ratio of mud, extra material large percentage, and there are many defects, outstanding behaviours to exist for cement slurry: mortar architecture
Stability is poor, and strength development is slow, and intensity is low, and cement slurry stone permeability is high, the corrosion etc. of Yi Yinqi corrosive media, i.e. cement slurry
Workability and Behavior of Hardened Cement Paste long-term sealing mechanical property between tend to occur contradiction, application is restricted again, most of
Non-object layer sealing is used for as backfilling cement.
Summary of the invention
To solve the above problems, the present invention provides a kind of low density and high strength cement slurry systems applied widely.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of low density and high strength cement slurry system applied widely, is prepared by the raw material of following parts by weight:
Low-density and high-strength cement 65-75 parts by weight, AMPS quasi polymer fluid loss agent 0.2-2 parts by weight, polycarboxylic acid
Ester dispersing agent 0.05-0.2 parts by weight, inorganic aluminate early strength agent 0.1-2 parts by weight, organic phosphate retarder 0.1-0.5 weight
Measure part, organic silicon defoamer 0.1-0.2 parts by weight, distilled water 25-35 parts by weight.
Wherein, the low-density and high-strength cement is prepared by the raw material of following parts by weight:
G grades of oil-well cement 20-40 parts by weight of API, fine activity silicon powder 10-20 parts by weight, glassy silicate artificial hollow
Extruding glass microballoon 10-20 parts by weight, reinforcing material 15-30 parts by weight.
Wherein, the reinforcing material is prepared by the raw material of following parts by weight:
Superfine cement 5-10 parts by weight, volcanic ash 5-10 parts by weight, 5-10 parts of high-quality fly ash, nano-silicon 10-15 weight
Part, calcined magnesia 5-10 parts by weight, ultrafine slag micro mist 10-20 parts by weight.
Wherein, SiO in the fine active silicon powder2Content 96-99.4%, the activated silica powder diameter are 300 mesh or more
The invention has the following advantages:
By the selection and grain composition of active material, increases the solid phase amount in unit volume cement slurry, improve low close
The suspension stability of cement slurry, the compression strength of vena caval filter ability and Behavior of Hardened Cement Paste are spent, the comprehensive performance of low-density cement mortar is made
It compares favourably, can be used in target zone sealing operation with conventional density.
Specific embodiment
In order to which objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
It is described in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
The fine active silicon powder is to be modified processing to silicon powder particle surface using surface modifier to form.
SiO in the fine active silicon powder2Content 96-99.4% is that a kind of nontoxic, tasteless, free of contamination high pure white of hydrophobicity is micro-
Powder, the activated silica powder diameter are 300 mesh or more, and then preferably 300-2000 mesh.The high-quality fly ash is thermal power plant's burning
Waste-powder of the coal dust by being discharged in flue forms uniform ball-type active material by working process.It is excellent when preparing cement
Matter flyash is used as active mineral admixture.The particle of high-quality fly ash is mostly spherical in shape, color dull gray, has depending on coal quality difference
Have deeply shallow.General fineness is similar with cement.The chemical component of flyash is SiO2、Al2O3、Fe2O3, CaO and MgO.It is described ultra-fine
Slag micropowder is common slag micropowder raw material, in particular to using blast furnace slag as primary raw material in cement products, is passed through
Dry grinding is handled and manufactured superfine grinding material, main chemical compositions SiO2、Al2O3And CaO, there is super-active.It is super
Thin slag micropowder itself can improve the micro-structure of cement slurry, wherein a large amount of activity SiO contained2It can be produced with the aquation of cement
Object calcium hydroxide carries out secondary reaction of hydration, generates the higher silicic acid gel of compactness, and then improve the intensity of Behavior of Hardened Cement Paste.It is described
Specific surface area >=450m of ultrafine slag micro mist2/ kg, particle size range are 500-2000 mesh, can be directly selected commercially available.The AMPS
Quasi polymer fluid loss agent, AMPS, that is, 2- acrylamide-2-methyl propane sulfonic are the excellent retarder in oil well cement paste, property
It can stablize, use temperature range is wide, and it is good with other additive compatibilities, cement strength is developed without side-effects.The dispersion
Agent is the compound polycarboxylic acids of ester ether；The retarder include organic phosphate, lignosulfonates and its derivative, sulfonation tannin,
Sodium tannate, tartaric acid and its salt；The retarder be selected from four sodium of aminotrimethylenephosphonic acid, five sodium of aminotrimethylenephosphonic acid,
1-hydroxy ethylidene-1,1-diphosphonic acid sodium, 1-hydroxy ethylidene-1,1-diphosphonic acid disodium, four sodium of 1-hydroxy ethylidene-1,1-diphosphonic acid, 1-hydroxy ethylidene-1,1-diphosphonic acid potassium, second two
Four methylenephosphonic acid of amine, five sodium, five sodium of diethylene triamine pentamethylene phosphonic, seven sodium of diethylene triamine pentamethylene phosphonic, diethylenetriamine
Pentamethyl Alendronate, 2- phosphonobutane -1,2, four sodium of 4- tricarboxylic acids, hexapotassium sylvite, double 1,6- hexylidenes three
The combination of any one or more of five methylenephosphonic acid sodium of amine.The defoaming agent includes organic silicon defoamer and polyphosphazene polymer ethers
Defoaming agent.
It is commercially available that following embodiment, which does not have specified otherwise such as with raw material used in comparative example, wherein API-G grades of oil wells
Cement is purchased from Fushun Cement Co., Ltd.；Active silicon powder reaches the clouds Gui Ye Co., Ltd purchased from Xuzhou；Hollow glass micropearl purchase
From Nanyang Hong Chuan petroleum technology development corporation, Ltd.；Calcined kaolin and galapectite are purchased from China Kaolin Clay Co., Ltd.；Powder
Coal ash and volcanic ash are purchased from Hebei Run Fa construction material Co., Ltd；Rubber powder is purchased from Jinhua China Tech limited rubber company；
Emulsion powder WWJF8010 is purchased from Anhui Province Wei Huashan new material Co., Ltd；Carbon fiber is purchased from Hangzhou high-tech composite material
Co., Ltd；Nano silica is purchased from Nanjing Tian Hang new material Co., Ltd；Calcined magnesia is purchased from the source Tianjin Bin Heke section
Skill Development Co., Ltd；Ultrafine slag micro mist JD-W800 is purchased from Fushun Cement Co., Ltd.；Fluid loss agent CG310S-P purchase
From Tianjin Kelioil Engineering Material and Technology Co., Ltd.；CX610L high effective antifoaming agent is purchased from Tianjin Ke Liaoer engineering material skill
Art Co., Ltd；5581F ether-ether Copolymer polycarboxylate water-reducer dispersing agent is purchased from German BASF China；Hydroxyl
Four sodium retarder of ethylene-diphosphonic acid is purchased from Ba Erke (Tianjin) water process Science and Technology Ltd.；
Embodiment
1 0.98-1.10g/cm of table345 DEG C of density cement's slurry system formulas
1.05g/cm under 2 different temperatures of table3Light weight cement slurry formula
3 1.10-1.30g/cm of table345 DEG C of density cement's slurry system formulas
1.15g/cm under 4 different temperatures of table3Light weight cement slurry formula
5 1.30-1.45g/cm of table345 DEG C of density cement's slurry system formulas
1.35g/cm under 6 different temperatures of table3Light weight cement slurry formula
7 1.45-1.60g/cm of table345 DEG C of density cement's slurry system formulas
1.50g/cm under 8 different temperatures of table3Light weight cement slurry formula
Table 1- table 8 is that different densities cement slurry ties up to the performance indicator of a certain temperature spot, and selects the close of particular range
Spend the various performance indicators under a certain density points test different temperatures in section；In cementing operations, cement slurry density is first
To be considered, the density of cement paste is generally 1.90 or so, it is desirable that cement slurry density it is lower, need lightening material to be added
More, lightening material is generally inert material, can seriously affect the various performances of cement slurry, in this way in order to improve various performances just
It improves mortar architecture and adds effective additive and extra material, to improve performance；
Second key factor is exactly the experimental temperature that well depth determines cement slurry, and different temperatures influences the performance of cement slurry
It is different, so whether the slurry character that investigate under a certain density points in the case of different temperatures meets construction requirement.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (1)
1. a kind of low density and high strength cement slurry system applied widely, which is characterized in that by the raw material system of following parts by weight
It is standby to form:
Low-density and high-strength cement 65-75 parts by weight, AMPS quasi polymer fluid loss agent 0.2-2 parts by weight, polycarboxylic acids ether-ether point
Powder 0.05-0.2 parts by weight, inorganic aluminate early strength agent 0.1-2 parts by weight, organic phosphate retarder 0.1-0.5 parts by weight,
Organic silicon defoamer 0.1-0.2 parts by weight, distilled water 25-35 parts by weight；
The low-density and high-strength cement is prepared by the raw material of following parts by weight:
G grades of oil-well cement 20-40 parts by weight of API, fine activity silicon powder 10-20 parts by weight, glassy silicate artificial hollow extruding
Glass microballoon 10-20 parts by weight, reinforcing material 15-30 parts by weight；
The reinforcing material is prepared by the raw material of following parts by weight:
Superfine cement 5-10 parts by weight, volcanic ash 5-10 parts by weight, 5-10 parts of high-quality fly ash, nano-silicon 10-15 parts by weight are forged
Burned magnesium oxide 5-10 parts by weight, ultrafine slag micro mist 10-20 parts by weight；
SiO in the fine active silicon powder2Content 96-99.4%, the activated silica powder diameter are 300 mesh or more.
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| CN201610662122.6A CN106396509B (en) | 2016-08-06 | 2016-08-06 | A kind of low density and high strength cement slurry system applied widely |
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| CN106396509B true CN106396509B (en) | 2019-03-26 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630806B (en) * | 2017-01-06 | 2019-04-26 | 中国海洋石油集团有限公司 | A kind of cement mixing component and its application |
| CN107117876A (en) * | 2017-05-19 | 2017-09-01 | 天津中油渤星工程科技有限公司 | A kind of nanometer base low-density cement mortar |
| CN108395154A (en) * | 2017-05-31 | 2018-08-14 | 宁夏亿昀特种工程材料有限公司 | Well cementation light weight cement |
| CN110387219A (en) * | 2019-07-18 | 2019-10-29 | 中海石油(中国)有限公司 | A kind of low-density suitable for shallow-layer unconsolidated sandstone formation mixes material and preparation method |
| CN110590251A (en) * | 2019-09-11 | 2019-12-20 | 中国石油集团渤海钻探工程有限公司 | Low-density high-strength cement paste |
| CN110540388A (en) * | 2019-09-19 | 2019-12-06 | 德州市亿源机械化工有限公司 | Low-density oil well cement reinforcing material and preparation method and use method thereof |
| CN113045259B (en) * | 2019-12-26 | 2023-02-07 | 中国石油天然气股份有限公司 | Hydrophobic and breathable cement slurry adopted in natural gas well cementing and preparation method thereof |
| CN115724616A (en) * | 2021-09-01 | 2023-03-03 | 中国石油化工股份有限公司 | Well cementation cement slurry system and preparation method and application thereof |
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| CN101747880A (en) * | 2009-12-29 | 2010-06-23 | 中国石油天然气集团公司 | Deep-water low-temperature low-density early-strength cementing slurry for well cementation |
| CN103666420A (en) * | 2013-11-29 | 2014-03-26 | 中石化江汉石油工程有限公司钻井一公司 | Cement slurry for shale gas development oil-based drilling fluid well cementation technology |
| CN103865501A (en) * | 2014-02-28 | 2014-06-18 | 中国石油集团渤海钻探工程有限公司 | Low-density cement paste for salt-cavern gas storage well cementation |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101747880A (en) * | 2009-12-29 | 2010-06-23 | 中国石油天然气集团公司 | Deep-water low-temperature low-density early-strength cementing slurry for well cementation |
| CN103666420A (en) * | 2013-11-29 | 2014-03-26 | 中石化江汉石油工程有限公司钻井一公司 | Cement slurry for shale gas development oil-based drilling fluid well cementation technology |
| CN103865501A (en) * | 2014-02-28 | 2014-06-18 | 中国石油集团渤海钻探工程有限公司 | Low-density cement paste for salt-cavern gas storage well cementation |
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Effective date of registration: 20201023 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 124010 No. 160, east section, oil Avenue, Xinglongtai District, Liaoning, Panjin Patentee before: CEMENTING COMPANY, CNPC GREATWALL DRILLING Co. |