CN101974317A - Sulphoaluminate cement paste for deepwater cementing - Google Patents
Sulphoaluminate cement paste for deepwater cementing Download PDFInfo
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- CN101974317A CN101974317A CN2010102932638A CN201010293263A CN101974317A CN 101974317 A CN101974317 A CN 101974317A CN 2010102932638 A CN2010102932638 A CN 2010102932638A CN 201010293263 A CN201010293263 A CN 201010293263A CN 101974317 A CN101974317 A CN 101974317A
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- aluminosulfate cement
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Abstract
The invention discloses a sulphoaluminate cement paste for deepwater cementing, comprising cement, a lightening admixture, a fluid loss agent, a dispersing agent, a coagulant, a retarder and water. The ratio by weight of the cement to the lightening admixture to the fluid loss agent to the dispersing agent to the coagulant to the retarder and to the water is 100: (13-35): (2-5): (0.5-2): (0.5-3): (0.1-1): (48-75). The sulphoaluminate cement paste can be used at lower temperature, and has better thickening time and higher compressive strength.
Description
Technical field
The present invention relates to a kind of aluminosulfate cement slurry, be specifically related to a kind of deep water cementing and starch with aluminosulfate cement.
Background technology
The process of annotating mud between the well of a bite well and sleeve pipe is called well cementation.The main purpose of well cementation is the shutoff annular space, and the cement mantle in the annular space has stoped flowing of resident fluid, and reaches mutual isolated purpose between the stratum.A kind of mortar architecture of excellent combination property is particularly important for cementing quality.
Marine field is being contained a large amount of virgin oils, and especially the prospective oil at ocean deepwater place is surprising especially.And the deepwater drilling operation is the important step of deep water hydrocarbon resource exploration and exploitation, and the well cementation link that is absolutely necessary again in deepwater work is particularly comparatively particularly important during complex geological tectonic in the face of deep water.The deep water cementing technical difficulty is big, and unfavorable factor is many, and the well cementation expense is huge, and cost is comparatively expensive; Deep water often is accompanied by high pressure low temperature, and seabed mud line temperature is near 0 ℃, and this has brought great challenge to well cementing operation.And the structural pipe of deepwater drilling generally is in the position of mud line to the following 100m of mud line, and its temperature is lower, and formation-parting pressure is low on every side, exists shallow-layer to flow.Existing cement is difficult to solidify at low temperatures, and the multiviscosisty transformation time is longer, and anti-shallow-layer flow capacity is relatively poor.
Summary of the invention
The purpose of this invention is to provide a kind of deep water cementing and starch with aluminosulfate cement, this grout can use under lower temperature, and has thickening time and high compression strength preferably.
Deep water cementing provided by the invention is starched with aluminosulfate cement, is made up of cement, light-weight additive, water retaining, dispersion agent, setting accelerator, retardant and water; The ratio of quality and the number of copies of described cement, light-weight additive, water retaining, dispersion agent, setting accelerator, retardant and water is 100: (13-35): (2-5): (0.5-2): (0.5-3): (0.1-1): (48-75).
In the aluminosulfate cement of the present invention slurry, the ratio of quality and the number of copies of described cement, light-weight additive, water retaining, dispersion agent, setting accelerator, retardant and water specifically can be 100: (18-32): (3.5-4): (1-1.5): (1-1.5): (0.2-0.5): (54-70), 100: 32: 5: 0.5: 1.5: 0.25: 75,100: 20: 4: 1: 1.5: 0.2: 70,100: 18: 4: 1.5: 1.5: 0.5: 63 or 100: 13: 3.5: 0.5: 1: 0.3: 54.
In the aluminosulfate cement of the present invention slurry, described cement is aluminosulfate cement, as buys the aluminosulfate cement of safe cement company limited in the Zhengzhou City.
In the aluminosulfate cement slurry of the present invention, described light-weight additive can be hollow glass micropearl; Described hollow glass micropearl can be the silicic-boric acid calcium salt; The density of described hollow glass micropearl is 0.44g/cm
3The residual motility rate of described glass microballon is more than 90% under 70MPa pressure, and is water insoluble and oily, has incompressibility, is low alkalinity, with most resene material compatibility arranged, and the function that reduces viscosity and improve liquidity is arranged.
In the aluminosulfate cement slurry of the present invention, described water retaining can be high molecular weight water soluble polymer; Described high molecular weight water soluble polymer can be in acrylamide-2-acrylamide-2-methyl propane sulfonic acid multipolymer and the acrylic amide-acrylic sodium multipolymer at least a; The number-average molecular weight of described acrylamide-2-acrylamide-2-methyl propane sulfonic acid multipolymer can be 2 * 10
5G/mol-1 * 10
6G/mol is as 9 * 10
5G/mol, the number-average molecular weight of described acrylic amide-acrylic sodium multipolymer can be 2 * 10
5G/mol-1 * 10
6G/mol is as 7 * 10
5G/mol.
In the aluminosulfate cement slurry of the present invention, described dispersion agent can be the acetonformaldehyde condenses, and the commercial disignation that provides as COSL is the acetonformaldehyde condenses of CF44L.
In the aluminosulfate cement slurry of the present invention, described setting accelerator can be in sodium sulfate, Repone K, SODIUMNITRATE, sodium metaaluminate, potassium silicate, sodium formiate, potassium formiate and the calcium chloride at least a.
In the aluminosulfate cement slurry of the present invention, described retardant can be in citric acid, boric acid and the organophosphate at least a; Described organophosphate can be ethylene diamine tetra methylene phosphonic acid sodium.
In the aluminosulfate cement slurry of the present invention, described water can be fresh water or seawater, and described seawater can be arbitrary deep sea water in South China Sea, the East Sea and the Bohai Sea.
Aluminosulfate cement slurry of the present invention has the following advantages:
1, the low temperature intensity development is fast, and ultimate compression strength is higher under the low temperature;
2, thickening time weak point, the nearly right angle multiviscosisty of multiviscosisty curve can effectively prevent shallow-layer stream disaster;
Characteristics such as 3, to have free liquid be zero to this grout, and filter loss is less, and the thickening time is adjustable.
Embodiment
Employed experimental technique is ordinary method if no special instructions among the following embodiment.
Used material, reagent etc. if no special instructions, all can obtain from commercial channels among the following embodiment.
Hollow silicic-boric acid calcium microballon used among the following embodiment of the present invention is bought in Minnesota Mining and Manufacturing Company.
Acrylamide-2-acrylamide-2-methyl propane sulfonic acid multipolymer and acrylic amide-acrylic sodium multipolymer used among the following embodiment of the present invention are bought in COSL.
Used aluminosulfate cement is bought safe cement company limited in the Zhengzhou City among the following embodiment of the present invention.
Acetonformaldehyde condenses used among the following embodiment of the present invention is bought in COSL, and commercial disignation is CF44L.
The preparation of embodiment 1, aluminosulfate cement slurry
Prescription is: aluminosulfate cement 100kg, fresh water 75kg, (its density is 0.44g/cm to hollow silicic-boric acid calcium microballon
3) 32kg, (number-average molecular weight is 9 * 10 to acrylamide-2-acrylamide-2-methyl propane sulfonic acid multipolymer
5G/mol) 5kg, sodium sulfate 1.5kg, citric acid 0.25kg, acetonformaldehyde condenses 0.5kg.
Compound method: required solid material is pre-mixed evenly stand-by, after again fluent material being mixed, adds the solid material be pre-mixed, and stir and obtain the aluminosulfate cement slurry; According to well cementation touchstone API10B-2-2005 and deep water cementing standard A PI10B-3-2004 this aluminosulfate cement slurry is carried out performance test, its result is as shown in table 1.
The preparation of embodiment 2, aluminosulfate cement slurry
Prescription is: aluminosulfate cement 100kg, deep-sea, Chinese Bohai Sea water 70kg, (its density is 0.44g/cm to hollow silicic-boric acid calcium microballon
3) 20kg, (number-average molecular weight is 7 * 10 to the acrylic amide-acrylic sodium multipolymer
5G/mol) the mixture 1.5kg of 4kg, Repone K and SODIUMNITRATE (wherein, the ratio of quality and the number of copies of Repone K and SODIUMNITRATE is 1: 1), boric acid 0.2kg, acetonformaldehyde condenses 1kg.
Compound method: required solid material is pre-mixed evenly stand-by, after again fluent material being mixed, adds the solid material be pre-mixed, and stir and obtain the aluminosulfate cement slurry; According to well cementation touchstone API10B-2-2005 and deep water cementing standard A PI10B-3-2004 this aluminosulfate cement slurry is carried out performance test, its result is as shown in table 1.
The preparation of embodiment 3, aluminosulfate cement slurry
Prescription is: aluminosulfate cement 100kg, South China Sea deep-sea water 63kg, (its density is 0.44g/cm to hollow silicic-boric acid calcium microballon
3) 18kg, (number-average molecular weight is 7 * 10 to the acrylic amide-acrylic sodium multipolymer
5G/mol) 4kg, sodium metaaluminate 1.5kg, ethylene diamine tetra methylene phosphonic acid sodium 0.5kg, acetonformaldehyde condenses are 1.5 parts.
Compound method: required solid material is pre-mixed evenly stand-by, after again fluent material being mixed, adds the solid material be pre-mixed, and stir and obtain the aluminosulfate cement slurry; According to well cementation touchstone API10B-2-2005 and deep water cementing standard A PI10B-3-2004 this aluminosulfate cement slurry is carried out performance test, its result is as shown in table 1.
The preparation of embodiment 4, aluminosulfate cement slurry
Prescription is: aluminosulfate cement 100kg, fresh water 54kg, (its density is 0.44g/cm to hollow silicic-boric acid calcium microballon
3) 13kg, (number-average molecular weight is 9 * 10 to acrylamide-2-acrylamide-2-methyl propane sulfonic acid multipolymer
5G/mol) 3.5kg, potassium silicate 1kg, citric acid 0.3kg, acetonformaldehyde condenses 0.5kg.
Compound method: required solid material is pre-mixed evenly stand-by, after again fluent material being mixed, adds the solid material be pre-mixed, and stir and obtain the aluminosulfate cement slurry; According to well cementation touchstone API10B-2-2005 and deep water cementing standard A PI10B-3-2004 this aluminosulfate cement slurry is carried out performance test, its result is as shown in table 1.
The aluminosulfate cement slurry The performance test results of table 1 embodiment 1-4
By data shown in the table 1 as can be known:
(1) deep water cementing of the present invention has stability and multiviscosisty controllability preferably with the aluminosulfate cement slurry, is convenient to working design, helps saving the wellsite operation time;
(2) deep water of the present invention has good low temperature early strength and low filtration loss with the aluminosulfate cement slurry, can fully satisfy deep water structure pipe well cementing operation demand.
Claims (7)
1. a well cementation is starched with aluminosulfate cement, is made up of cement, light-weight additive, water retaining, dispersion agent, setting accelerator, retardant and water; The ratio of quality and the number of copies of described cement, light-weight additive, water retaining, dispersion agent, toughener, retardant and water is 100: (13-35): (2-5): (0.5-2): (0.5-3): (0.1-1): (48-75).
2. grout according to claim 1 is characterized in that: described cement is aluminosulfate cement.
3. grout according to claim 1 and 2 is characterized in that: described light-weight additive is a hollow glass micropearl; Described hollow glass micropearl is the silicic-boric acid calcium salt; The density of described hollow glass micropearl is 0.44g/cm
3
4. according to arbitrary described grout among the claim 1-3, it is characterized in that: described water retaining is a high molecular weight water soluble polymer; Described high molecular weight water soluble polymer is at least a in acrylamide-2-acrylamide-2-methyl propane sulfonic acid multipolymer and the acrylic amide-acrylic sodium multipolymer.
5. according to arbitrary described grout among the claim 1-4, it is characterized in that: described dispersion agent is the acetonformaldehyde condenses.
6. according to arbitrary described grout among the claim 1-5, it is characterized in that: described setting accelerator is at least a in sodium sulfate, Repone K, SODIUMNITRATE, sodium metaaluminate, potassium silicate, sodium formiate, potassium formiate and the calcium chloride.
7. according to arbitrary described grout among the claim 1-6, it is characterized in that: described retardant is at least a in citric acid, boric acid and the organophosphate.
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| CN2010102932638A CN101974317A (en) | 2010-09-27 | 2010-09-27 | Sulphoaluminate cement paste for deepwater cementing |
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| CN2010102932638A CN101974317A (en) | 2010-09-27 | 2010-09-27 | Sulphoaluminate cement paste for deepwater cementing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786918A (en) * | 2011-05-17 | 2012-11-21 | 中联煤层气有限责任公司 | Water loss reducing composition, cement composition containing water loss reducing composition, and preparation method and use of water loss reducing composition |
| CN103553511A (en) * | 2013-11-13 | 2014-02-05 | 江苏博特新材料有限公司 | Cement gel mortar and method for manufacturing semi-flexible pavement of rapid open traffic by using cement gel mortar |
| CN104371065A (en) * | 2014-11-24 | 2015-02-25 | 卫辉市化工有限公司 | Preparation method of instant polymer retarder for oil well cement |
| CN104559981A (en) * | 2015-02-02 | 2015-04-29 | 中国海洋石油总公司 | Low-heat cement slurry capable of preventing gas hydrate from decomposition |
| CN106554765A (en) * | 2016-10-25 | 2017-04-05 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of oil-well cement is without chlorine anti-channeling early strength agent and preparation method and application |
| CN112876184A (en) * | 2021-02-01 | 2021-06-01 | 重庆大学 | Sludge curing agent and preparation method and use method thereof |
| CN113429164A (en) * | 2021-06-17 | 2021-09-24 | 中国石油化工股份有限公司 | Low-density high-strength toughened cement slurry system for oil layer and preparation method thereof |
| CN113582638A (en) * | 2021-08-18 | 2021-11-02 | 交通运输部公路科学研究所 | Constant negative temperature hydrated concrete for plateau permafrost pile foundation and preparation method thereof |
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| CN1053468A (en) * | 1990-01-19 | 1991-07-31 | 中国矿业大学 | Underground filling and injecting paste material |
| CN101100361A (en) * | 2007-08-07 | 2008-01-09 | 中国海洋石油总公司 | Low-temperature low-density well cementing cement mortar |
-
2010
- 2010-09-27 CN CN2010102932638A patent/CN101974317A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053468A (en) * | 1990-01-19 | 1991-07-31 | 中国矿业大学 | Underground filling and injecting paste material |
| CN101100361A (en) * | 2007-08-07 | 2008-01-09 | 中国海洋石油总公司 | Low-temperature low-density well cementing cement mortar |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786918A (en) * | 2011-05-17 | 2012-11-21 | 中联煤层气有限责任公司 | Water loss reducing composition, cement composition containing water loss reducing composition, and preparation method and use of water loss reducing composition |
| CN102786918B (en) * | 2011-05-17 | 2014-07-16 | 中联煤层气有限责任公司 | Water loss reducing composition, cement composition containing water loss reducing composition, and preparation method and use of water loss reducing composition |
| CN103553511A (en) * | 2013-11-13 | 2014-02-05 | 江苏博特新材料有限公司 | Cement gel mortar and method for manufacturing semi-flexible pavement of rapid open traffic by using cement gel mortar |
| CN103553511B (en) * | 2013-11-13 | 2015-09-09 | 江苏苏博特新材料股份有限公司 | The method of cement slurry and the half-flexible pavement for the preparation of quick open to traffic thereof |
| CN104371065A (en) * | 2014-11-24 | 2015-02-25 | 卫辉市化工有限公司 | Preparation method of instant polymer retarder for oil well cement |
| CN104559981A (en) * | 2015-02-02 | 2015-04-29 | 中国海洋石油总公司 | Low-heat cement slurry capable of preventing gas hydrate from decomposition |
| CN104559981B (en) * | 2015-02-02 | 2018-02-23 | 中国海洋石油总公司 | A kind of low-heat cement for preventing gas hydrate dissociation is starched |
| CN106554765A (en) * | 2016-10-25 | 2017-04-05 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of oil-well cement is without chlorine anti-channeling early strength agent and preparation method and application |
| CN112876184A (en) * | 2021-02-01 | 2021-06-01 | 重庆大学 | Sludge curing agent and preparation method and use method thereof |
| CN113429164A (en) * | 2021-06-17 | 2021-09-24 | 中国石油化工股份有限公司 | Low-density high-strength toughened cement slurry system for oil layer and preparation method thereof |
| CN113582638A (en) * | 2021-08-18 | 2021-11-02 | 交通运输部公路科学研究所 | Constant negative temperature hydrated concrete for plateau permafrost pile foundation and preparation method thereof |
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Application publication date: 20110216 |