CN105800970A - Method for preparing high-early-strength oil well cement from industrial waste residue - Google Patents
Method for preparing high-early-strength oil well cement from industrial waste residue Download PDFInfo
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- CN105800970A CN105800970A CN201610108447.XA CN201610108447A CN105800970A CN 105800970 A CN105800970 A CN 105800970A CN 201610108447 A CN201610108447 A CN 201610108447A CN 105800970 A CN105800970 A CN 105800970A
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- early
- well cement
- cement
- raw material
- strength oil
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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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention discloses high-early-strength oil well cement. The raw high-early-strength oil well cement is prepared from the following raw materials in percentage by mass: 60-75% of limestone, 10-15% of red sandstone, 3-6% of phosphorus slag, 4-7% of steel slag and 15% of calcium added slag. The oil well cement disclosed by the invention has the characteristics of short setting time at low temperature, high compressive strength, minimum inflation, and the like, and is in good compatibility with additives; moreover, the dosage of additives can be reduced while the well cementation conditions are met, the site operation is simple, and the well cementation quality is good.
Description
Technical field
The present invention relates to inorganic coagulation material technical field, be specifically related to a kind of method that industrial residue prepares high-early-strength oil-well cement.
Background technology
The basis that the energy is depended on for existence as the mankind, is the driving force of human development.Oil is a kind of non-renewable resources, belongs to primary energy, accounts for very important status in world today's energy forms.Therefore the exploitation work of oil is carried out, it appears particularly important.During oil exploitation, anchorage is to ensure that the precondition of safe working.For the performance requirement of specification well cementation oilfield cement, China is according to API oil-well cement standard formulation GB10238-2005.Due to oil exploitation landform and the complexity of environment, the Performances of Oil Well Cement that GB10238-2005 specifies can not fully meet the demand of actual cementing conditions sometimes, such as higher early strength, shorter setting time, more preferable additive adaptability etc..
At present, the research for high-early-strength oil-well cement both at home and abroad can be attributed to following three points: first, prepares high-early-strength type oil-well cement grog；Second, use multiple additive；3rd, mix outward specialty minerals admixture.Application No. 03117563.5 patent " high-early-strength oil-well cement " tells about its clinker mineral composition percentage composition, mixes outward certain limestone, gangue and mine tailing.This cement consumes certain industrial residue, and various performance indications are also preferable, but the raw material of grog is distinctly claimed, it is impossible to judge its cost." a kind of method preparing rapid hardening and early strength cement grog " described in Application No. 201210424696.1 patent uses limestone, mineral processing tailing of bauxite, ordinary fly ash and Gypsum Fibrosum as raw material, it is sintered into the belite sulphoaluminate cement clinker of high-early-strength, is not belonging to Portland clinker category." preparation method of a kind of high-early-strength hydraulic cementing materials " described in Application No. 201210128015.7 patent, its raw material are made up of calcium oxide residue, bauxite, ardealite, pyrite cinder, and the grog made also is not belonging to Portland clinker category.A large amount of industrial residue although the method can be dissolved, but due to the regionality of manufacture of cement, the industrial residue in identical area can not meet actual production demand simultaneously, and meanwhile the control to existing quality coal in cement kiln systems has instability and difficulty is realisation." High performance calcium aluminate oil well cement " described in Application No. 201310662548.8 patent is made up of calcium aluminate oil-well cement, silica flour, SILICA FUME, flow pattern regulator, fluid loss agent, retarder, and its 7d comprcssive strength can reach 80MPa.Although this kind of cement has higher early strength, but the additional dosage used is big, kind is many, and the outer volume of specialty minerals is also big simultaneously, and its production cost is higher.
The mankind are more and more higher to the requirement of its own existence environment at present, and Ecological Civilization Construction also grows in intensity.Cement industry, as the forward position industry of the various industrial residues of process, plays vital effect for industrial residue utilization.Phosphorus slag, slag are as the important component part in " 12 " large industrial waste residue disposal, although have a lot of research reports at present, but the most rare in preparing oil-well cement grog.
Summary of the invention
The present invention is primarily to solve above-mentioned technical problem, and provides a kind of method that industrial residue prepares high-early-strength oil-well cement.
The raw material of high-early-strength oil-well cement of the present invention are made up of the raw material of following mass percent: limestone 60-75%, Red Sandstone 10-15%, phosphorus slag 3-6%, slag 4-7% and Gain-calcium dregs 15%.
Its preparation method comprises the following steps:
1.. raw material homogenizing: described each component raw material is through raw grinding system grinding homogenizing；
2.. clinker burning: the raw material after step 1. homogenizing are entered kiln mature calcined material；
3.. prepared by cement: mix grey and 2.5-4.5% the Gypsum Fibrosum of silicon that mass percent is 0.5-2.5% in the grog China and foreign countries that 2. step burns till and carrying out cement pulverizing.
Described step 2. middle grog employing following quality control index control quality: lime saturation factor KH=0.930 ± 0.02；Silica modulus SM=2.75 ± 0.10；Aluminium-oxygen modulus IM=0.80 ± 0.1；Tricalcium aluminate C3A≤2.5%.
The invention have the advantage that
Oil-well cement of the present invention has the features such as low temperature lower setting time short, comprcssive strength is high, microdilatancy, good with additive compatibility, can reduce additive usage amount under meeting cementing conditions, and execute-in-place is simple, and cementing quality is good.
Detailed description of the invention
The raw material of high-early-strength oil-well cement of the present invention are made up of the raw material of following mass percent: limestone 60-75%, Red Sandstone 10-15%, phosphorus slag 3-6%, slag 4-7% and Gain-calcium dregs 15%.
Its preparation method comprises the following steps:
1.. raw material homogenizing: described each component raw material are through raw grinding system grinding homogenizing；
2.. clinker burning: the raw material after step 1. homogenizing are entered kiln mature calcined material；
3.. prepared by cement: mix grey and 2.5-4.5% the Gypsum Fibrosum of silicon that mass percent is 0.5-2.5% in the grog China and foreign countries that 2. step burns till and carrying out cement pulverizing.
Described step 2. middle grog employing following quality control index control quality: lime saturation factor KH=0.930 ± 0.02；Silica modulus SM=2.75 ± 0.10；Aluminium-oxygen modulus IM=0.80 ± 0.1；Tricalcium aluminate C3A≤2.5%.
In actual production, G level oil-well cement produces general high-grade limestone, the siliceous raw material of high-quality and the iron ore used.My company is during actual G level oil-well cement, in conjunction with the experience producing portland cement.In raw meal proportioning, with phosphorus slag, steel slag instead part raw limestone, Red Sandstone is as siliceous raw material；Slag, Gain-calcium dregs part substitute iron ore as ferro-controlling raw material.Owing to CaO, the MgO in slag, phosphorus slag and Gain-calcium dregs exists with noncarbonate form, CO can be reduced during clinker burning2Discharge；Slag and phosphorus slag play crystal seed effect during clinker burning simultaneously, reduce clinker burning temperature, thus reduce the energy consumption of unit grog.
According to the chemical composition of each raw materials and fuel, design grog three ratio is respectively as follows: KH=0.930 ± 0.02；SM=2.75±0.10；IM=0.80±0.1.Each raw-material mass percent is respectively as follows: limestone 73.0%, Red Sandstone 12.0%, phosphorus slag 5%, slag 7%, Gain-calcium dregs 3%.After each raw material grinding, after pre-homogenizing processes, φ 4*60m cement kiln generates after high-temperature calcination, cooling oil-well cement grog.In oil well grog grinding process, mixing outward 1% silicon ash and 3% Gypsum Fibrosum, finally obtaining specific surface area is 295 ~ 305m2The high-early-strength oil-well cement of/kg.The chemical composition of four batch samples and mineral composition such as table 1, physical properties such as table 2 under identical raw-meal ingredient.With G level oil well cement additive compatibility to such as table 3.
Table 1 high-early-strength oil-well cement chemistry and mineral composition
Table 2 high-early-strength oil-well cement physical properties
Table 3 high-early-strength oil-well cement contrasts with G level oil well cement additive compatibility
Claims (3)
1. a high-early-strength oil-well cement, it is characterised in that the raw material of described high-early-strength oil-well cement are made up of the raw material of following mass percent: limestone 60-75%, Red Sandstone 10-15%, phosphorus slag 3-6%, slag 4-7% and Gain-calcium dregs 15%.
A kind of high-early-strength oil-well cement the most according to claim 1, it is characterised in that its preparation method comprises the following steps:
1.. raw material homogenizing: described each component raw material is through raw grinding system grinding homogenizing；
2.. clinker burning: the raw material after step 1. homogenizing are entered kiln mature calcined material；
3.. prepared by cement: mix grey and 2.5-4.5% the Gypsum Fibrosum of silicon that mass percent is 0.5-2.5% in the grog China and foreign countries that 2. step burns till and carrying out cement pulverizing.
A kind of high-early-strength oil-well cement the most according to claim 2, it is characterised in that described step 2. middle grog employing following quality control index control quality: lime saturation factor KH=0.930 ± 0.02；Silica modulus SM=2.75 ± 0.10；Aluminium-oxygen modulus IM=0.80 ± 0.1；Tricalcium aluminate C3A≤2.5%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610108447.XA CN105800970A (en) | 2016-02-29 | 2016-02-29 | Method for preparing high-early-strength oil well cement from industrial waste residue |
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| CN201610108447.XA CN105800970A (en) | 2016-02-29 | 2016-02-29 | Method for preparing high-early-strength oil well cement from industrial waste residue |
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| CN105800970A true CN105800970A (en) | 2016-07-27 |
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| CN201610108447.XA Pending CN105800970A (en) | 2016-02-29 | 2016-02-29 | Method for preparing high-early-strength oil well cement from industrial waste residue |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825355A (en) * | 2019-09-12 | 2020-10-27 | 尧柏特种水泥技术研发有限公司 | Low-thixotropy oil well cement |
| CN112429985A (en) * | 2020-12-03 | 2021-03-02 | 四川嘉华锦屏特种水泥有限责任公司 | Moderate heat portland cement prepared by utilizing industrial waste residues and preparation method thereof |
| CN112939490A (en) * | 2021-02-26 | 2021-06-11 | 尧柏特种水泥技术研发有限公司 | Oil-gas well cement and preparation method thereof |
| CN113121128A (en) * | 2021-06-04 | 2021-07-16 | 嘉华特种水泥股份有限公司 | High-strength toughened cementing material and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000814A (en) * | 2015-07-07 | 2015-10-28 | 葛洲坝集团水泥有限公司 | Processing method for preparing fast-hardening early-strength oil well cement with industrial waste slag |
-
2016
- 2016-02-29 CN CN201610108447.XA patent/CN105800970A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000814A (en) * | 2015-07-07 | 2015-10-28 | 葛洲坝集团水泥有限公司 | Processing method for preparing fast-hardening early-strength oil well cement with industrial waste slag |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825355A (en) * | 2019-09-12 | 2020-10-27 | 尧柏特种水泥技术研发有限公司 | Low-thixotropy oil well cement |
| CN112429985A (en) * | 2020-12-03 | 2021-03-02 | 四川嘉华锦屏特种水泥有限责任公司 | Moderate heat portland cement prepared by utilizing industrial waste residues and preparation method thereof |
| CN112939490A (en) * | 2021-02-26 | 2021-06-11 | 尧柏特种水泥技术研发有限公司 | Oil-gas well cement and preparation method thereof |
| CN113121128A (en) * | 2021-06-04 | 2021-07-16 | 嘉华特种水泥股份有限公司 | High-strength toughened cementing material and preparation method and application thereof |
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