CN108395132A - Oil-well cement mitigation extra material - Google Patents
Oil-well cement mitigation extra material Download PDFInfo
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- CN108395132A CN108395132A CN201710397134.5A CN201710397134A CN108395132A CN 108395132 A CN108395132 A CN 108395132A CN 201710397134 A CN201710397134 A CN 201710397134A CN 108395132 A CN108395132 A CN 108395132A
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- oil
- extra material
- well cement
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Oil-well cement is pressed following component and is mixed in parts by weight with extra material is mitigated：5 parts~8 parts of high intensity microballon, 2 parts~7 parts of floating bead, 2 parts~3 parts of perlite, 8 parts~11 parts of SILICA FUME, 3 parts~10 parts of flyash, 2 parts~3 parts of fluid loss agent, 2 parts~3 parts of stabilizer, 2 parts~3 parts of swelling agent, 0.6 part~0.8 part of early strength agent, 0.2 part~0.4 part of drag reducer.According to different construction requirements, mitigating extra material using the oil-well cement of the present invention can be by oil-well cement density domination in 1.15~1.35g/cm3Between, and high temperature, high pressure lower density are constant, and plastic viscosity, yield value, the thixotropy of mud are preferable, can be adapted for high temperature, high pressure and deep well, superhigh temperature, high pressure, ultradeep well well cementing operation mortar architecture.
Description
Technical field
The invention belongs to the light weight cement used of cementing the well, more particularly to a kind of oil-well cement mitigation extra material.
Background technology
With deepening continuously for oil well exploration exploitation, there are bottom hole temperature (BHT) height, the complexity such as pressure is high, and cementing operation risk is big
Situation requires cement-slurry method design and performance all high.Cementing slurry not only needs lower density, also requires cement
Slurry has stronger anti-gas blowby ability, and cement mortar can be applicable in the big temperature difference environment at oil well shaft bottom and top, and conventional oil
The problems such as cementing slurry for well system density is higher, and cement early strength is low, and the thickening time is long cannot meet the requirements, therefore will be to general
The addition of water flowing mud system mitigates extra material.Currently used oil-well cement, which mitigates extra material, cannot make cement mortar in high temperature height
Pressure is stablized, and density is mostly in 1.35g/cm3More than, anti-gas blowby ability is poor.
Invention content
To solve the defect that existing oil-well cement mitigates extra material, a kind of oil-well cement of present invention offer mitigates outer mix
Material, can be by oil-well cement density domination in 1.15~1.35g/cm using it according to different construction requirements3Between, high temperature
Stability is good, and fluidity is high, and high pressure lower density is constant, and early strength is higher.
The oil-well cement of the present invention is pressed following component and is mixed in parts by weight with extra material is mitigated：
5 parts~8 parts of high intensity microballon,
2 parts~7 parts of floating bead,
2 parts~3 parts of perlite,
8 parts~11 parts of SILICA FUME,
3 parts~10 parts of flyash,
2 parts~3 parts of fluid loss agent,
2 parts~3 parts of stabilizer,
2 parts~3 parts of swelling agent,
0.6 part~0.8 part of early strength agent,
0.2 part~0.4 part of drag reducer.
The swelling agent component and proportioning are as follows by weight：29 parts of lithium aluminium silicate, 47 parts of calcium sulphoaluminate, ultra-fine hydrogen-oxygen
Change 24 parts of magnesium.
The fluid loss agent component and proportioning are as follows by weight：27 parts of 2- acrylamides, 39 parts of 2- methyl propane sulfonic acids,
7 parts of Ammonium Persulfate 98.5,9 parts of sodium hydrogensulfite, 5 parts of sodium hydroxide, N, 13 parts of N- methylene-bisacrylamides.
The early strength agent component and proportioning are as follows by weight：21 parts of potassium carbonate, 18 parts of aluminium polychloride, sodium metasilicate 48
Part, 13 parts of calcium silicates.
The stabilizer component and proportioning are as follows by weight：22 parts of aluminum sulfate, 28 parts of sodium carbonate, polymeric aluminum sulfate iron
31 parts, 5 parts of superfine silica powder, 14 parts of calcene.
The drag reducer component and proportioning are as follows by weight：47 parts of formaldehyde, 41 parts of acetone, 5 parts of triethanolamine, hydrogen-oxygen
Change 7 parts of sodium.
Oil-well cement of the present invention is with extra material advantageous effect is mitigated：It, can be with using it according to different construction requirements
By oil-well cement density domination in 1.15~1.35g/cm3Between, and high temperature, high pressure lower density are constant, plastic viscosity can be controlled
System is in 50-100mPa.s, and yield value can be controlled in 5-8Pa, and sedimentation stability can be controlled in 0.02g/cm3Within, it can be with
Suitable for high temperature, high pressure and deep well, superhigh temperature, high pressure, ultradeep well well cementing operation mortar architecture.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, with reference to embodiment, this hair is further illustrated
It is bright.
Embodiment 1
Oil-well cement is pressed following component and is mixed in parts by weight with extra material is mitigated：8 parts of high intensity microballon, 7 parts of floating bead,
3 parts of perlite, 10 parts of SILICA FUME, 10 parts of flyash, 2 parts of fluid loss agent, 3 parts of stabilizer, 1 part of swelling agent, 0.6 part of early strength agent,
0.4 part of drag reducer.
Swelling agent component and proportioning are as follows by weight：29 parts of lithium aluminium silicate, 47 parts of calcium sulphoaluminate, super fine magnesium hydroxide
24 parts.
Fluid loss agent component and proportioning are as follows by weight：27 parts of 2- acrylamides, 39 parts of 2- methyl propane sulfonic acids, over cure
7 parts of acid amide, 9 parts of sodium hydrogensulfite, 5 parts of sodium hydroxide, N, 13 parts of N- methylene-bisacrylamides.
Early strength agent component and proportioning are as follows by weight：21 parts of potassium carbonate, 18 parts of aluminium polychloride, 48 parts of sodium metasilicate,
13 parts of calcium silicates.
Stabilizer component and proportioning are as follows by weight：22 parts of aluminum sulfate, 28 parts of sodium carbonate, polymeric aluminum sulfate iron 31
Part, 5 parts of superfine silica powder, 14 parts of calcene.
Drag reducer component and proportioning are as follows by weight：47 parts of formaldehyde, 41 parts of acetone, 5 parts of triethanolamine, sodium hydroxide
7 parts.
Embodiment 2
Oil-well cement is pressed following component and is mixed in parts by weight with extra material is mitigated：6 parts of high intensity microballon, 4 parts of floating bead,
3 parts of perlite, 11 parts of SILICA FUME, 9 parts of flyash, 2 parts of fluid loss agent, 3 parts of stabilizer, 1 part of swelling agent, 0.7 part of early strength agent subtract
0.3 part of resist.
The wherein described swelling agent, fluid loss agent, early strength agent, stabilizer, the component of drag reducer and content and 1 phase of embodiment
Together.
Embodiment 3
Oil-well cement is pressed following component and is mixed in parts by weight with extra material is mitigated：5 parts of high intensity microballon, 2 parts of floating bead,
2 parts of perlite, 8 parts of SILICA FUME, 7 parts of flyash, 2 parts of fluid loss agent, 2 parts of stabilizer, 1 part of swelling agent, 0.6 part of early strength agent subtract
0.4 part of resist.
The wherein described swelling agent, fluid loss agent, early strength agent, stabilizer, the component of drag reducer and content and 1 phase of embodiment
Together.
Embodiment 4
Oil-well cement is pressed following component and is mixed in parts by weight with extra material is mitigated：6 parts of high intensity microballon, 5 parts of floating bead,
2 parts of perlite, 10 parts of SILICA FUME, 3 parts of flyash, 3 parts of fluid loss agent, 3 parts of stabilizer, 2 parts of swelling agent, 0.8 part of early strength agent subtract
0.2 part of resist.
The wherein described swelling agent, fluid loss agent, early strength agent, stabilizer, the component of drag reducer and content and 1 phase of embodiment
Together.
5 testing experiment of embodiment
Some are respectively taken to carry out mud density, thickening time, pressure resistance 1~embodiment of above-described embodiment, 4 resulting product
The tests such as degree, fluidity.The test condition of thickening time is：52 DEG C, 25MPa, 20min heating；The test condition of compression strength
For：Normal pressure, 85 DEG C, for 24 hours；Sedimentation stability experiment condition is：85 DEG C, normal pressure, 20min.Test result is shown in Table 1.
Table 1
The above-mentioned description to embodiment can be understood and applied the invention for ease of those skilled in the art.
Any technical person familiar with the field in the technical scope disclosed by the present invention, can make various repair to the present embodiment easily
Change, and principle described herein is applied to other examples and is applied without passing through creative work.Therefore, the present invention is not limited to this
In embodiment, do not depart from the made improvement of scope and modification should be covered by the protection scope of the present invention.
Claims (6)
1. oil-well cement mitigation extra material, which is characterized in that press following component in parts by weight and mix：
5 parts~8 parts of high intensity microballon,
2 parts~7 parts of floating bead,
2 parts~3 parts of perlite,
8 parts~11 parts of SILICA FUME,
3 parts~10 parts of flyash,
2 parts~3 parts of fluid loss agent,
2 parts~3 parts of stabilizer,
2 parts~3 parts of swelling agent,
0.6 part~0.8 part of early strength agent,
0.2 part~0.4 part of drag reducer.
2. oil-well cement according to claim 1 mitigation extra material, which is characterized in that the swelling agent component and proportioning
It is as follows by weight：29 parts of lithium aluminium silicate, 47 parts of calcium sulphoaluminate, 24 parts of super fine magnesium hydroxide.
3. oil-well cement according to claim 1 is with mitigating extra material, which is characterized in that the fluid loss agent component and match
It is as follows than by weight：27 parts of 2- acrylamides, 39 parts of 2- methyl propane sulfonic acids, 7 parts of Ammonium Persulfate 98.5,9 parts of sodium hydrogensulfite, hydrogen
5 parts of sodium oxide molybdena, N, 13 parts of N- methylene-bisacrylamides.
4. oil-well cement according to claim 1 mitigation extra material, which is characterized in that the early strength agent component and proportioning
It is as follows by weight：21 parts of potassium carbonate, 18 parts of aluminium polychloride, 48 parts of sodium metasilicate, 13 parts of calcium silicates.
5. oil-well cement according to claim 1 mitigation extra material, which is characterized in that the stabilizer component and proportioning
It is as follows by weight：22 parts of aluminum sulfate, 28 parts of sodium carbonate, 31 parts of polymeric aluminum sulfate iron, 5 parts of superfine silica powder, active light carbon
14 parts of sour calcium.
6. oil-well cement according to claim 1 mitigation extra material, which is characterized in that the drag reducer component and proportioning
It is as follows by weight：47 parts of formaldehyde, 41 parts of acetone, 5 parts of triethanolamine, 7 parts of sodium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397134.5A CN108395132A (en) | 2017-05-31 | 2017-05-31 | Oil-well cement mitigation extra material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397134.5A CN108395132A (en) | 2017-05-31 | 2017-05-31 | Oil-well cement mitigation extra material |
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| CN108395132A true CN108395132A (en) | 2018-08-14 |
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| CN201710397134.5A Pending CN108395132A (en) | 2017-05-31 | 2017-05-31 | Oil-well cement mitigation extra material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110846008A (en) * | 2019-12-16 | 2020-02-28 | 天津市康盛科技开发有限公司 | Oil well cement lightening admixture |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7303014B2 (en) * | 2004-10-26 | 2007-12-04 | Halliburton Energy Services, Inc. | Casing strings and methods of using such strings in subterranean cementing operations |
| CN102585789A (en) * | 2012-02-10 | 2012-07-18 | 成都欧美科石油科技股份有限公司 | High temperature resistance low-density high-strength cement paste |
| CN104263335A (en) * | 2014-08-29 | 2015-01-07 | 中国石油集团渤海钻探工程有限公司 | Low-density early-strength micro-expanding cement mortar and preparation method thereof |
-
2017
- 2017-05-31 CN CN201710397134.5A patent/CN108395132A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7303014B2 (en) * | 2004-10-26 | 2007-12-04 | Halliburton Energy Services, Inc. | Casing strings and methods of using such strings in subterranean cementing operations |
| CN102585789A (en) * | 2012-02-10 | 2012-07-18 | 成都欧美科石油科技股份有限公司 | High temperature resistance low-density high-strength cement paste |
| CN104263335A (en) * | 2014-08-29 | 2015-01-07 | 中国石油集团渤海钻探工程有限公司 | Low-density early-strength micro-expanding cement mortar and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 温辉良: "《化工助剂》", 31 December 2009, 江西科学技术出版社 * |
| 王福元等: "《粉煤灰利用手册》", 31 July 1997, 中国电力出版社 * |
| 罗长青等: "《固井技术》", 31 August 1999, 石油工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110846008A (en) * | 2019-12-16 | 2020-02-28 | 天津市康盛科技开发有限公司 | Oil well cement lightening admixture |
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Application publication date: 20180814 |
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