CN107162448A - Oil well cement formulations - Google Patents
Oil well cement formulations Download PDFInfo
- Publication number
- CN107162448A CN107162448A CN201710247401.0A CN201710247401A CN107162448A CN 107162448 A CN107162448 A CN 107162448A CN 201710247401 A CN201710247401 A CN 201710247401A CN 107162448 A CN107162448 A CN 107162448A
- Authority
- CN
- China
- Prior art keywords
- parts
- oil well
- oil
- well cement
- cement formulations
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of oil well cement formulations, it is related to building material field, the oil well cement formulations use hydraulicity calcium carbonate, silica, sandstone, lime stone, flyash, sulfate slag, and mix appropriate gypsum.The oil-well cement can solidify quickly afterwards in injection oil well, and suitable intensity is reached in a short time, cement after hardening has good stability and impermeability, there is good corrosion resistance for the corrosive medium in oil well, one can be formed in well layer and flow to ground from oil reservoir, completely cut off good oil flow channel.
Description
Technical field
The present invention relates to building material field, it is more particularly related to a kind of oil well cement formulations.
Background technology
Cement is a kind of powdery hydraulicity inorganic coagulation material.Add water stirring after into slurry, can harden in atmosphere or
Preferably hardened in water, and can the materials such as sand, stone is cemented together securely., it is necessary to which steel sleeve is put into oil well
Oil well bottom, reinjects cement mortar, by steel sleeve and the gelling sealing of oil well bottom stratum, well cementing operation is carried out, so as in well layer
Middle formation one flows to ground from oil reservoir, completely cuts off good oil flow channel.The existing speed that thes cement solidifies is slow, and hardness is inadequate, and
Stability and impermeability not enough, are not suitable for using in oil well.
The content of the invention
Problem to be solved by this invention is to provide a kind of oil well cement formulations, and setting rate is fast, and hardness is high, and stability
It is good with impermeability, it is adapted to use in oil well.
To achieve these goals, the technical scheme taken of the present invention is：A kind of oil well cement formulations, it is characterised in that
The oil well cement formulations include the raw material of following parts by weight：16~22 parts of hydraulicity calcium carbonate, 16~22 parts of silica, 20
~26 parts of sandstone, 12~18 parts of lime stones, 12~18 parts of flyash, 7~10 parts of sulfate slags, 5~9 parts of gypsum.
It is preferred that, the oil well cement formulations include the raw material of following parts by weight：16 parts of hydraulicity calcium carbonate, 16 part two
Silica, 26 parts of sandstone, 18 parts of lime stones, 12 parts of flyash, 10 parts of sulfate slags, 5 parts of gypsum.
It is preferred that, the oil well cement formulations include the raw material of following parts by weight：19 parts of hydraulicity calcium carbonate, 19 part two
Silica, 23 parts of sandstone, 15 parts of lime stones, 15 parts of flyash, 8 parts of sulfate slags, 7 parts of gypsum.
It is preferred that, the oil well cement formulations include the raw material of following parts by weight：22 parts of hydraulicity calcium carbonate, 22 part two
Silica, 20 parts of sandstone, 12 parts of lime stones, 18 parts of flyash, 7 parts of sulfate slags, 9 parts of gypsum.
Beneficial effect：The oil well cement formulations using hydraulicity calcium carbonate, silica, sandstone, lime stone, flyash,
Sulfate slag, and mix appropriate gypsum.The oil-well cement can solidify quickly afterwards in injection oil well, and in short-term
Interior to reach suitable intensity, the cement after hardening has good stability and impermeability, is situated between for the aggressivity in oil well
Matter has good corrosion resistance, can form one in well layer and flow to ground from oil reservoir, completely cut off good oil flow channel.
Embodiment
Embodiment 1：
The oil well cement formulations include the raw material of following parts by weight：16 parts of hydraulicity calcium carbonate, 16 parts of silica, 26
Part sandstone, 18 parts of lime stones, 12 parts of flyash, 10 parts of sulfate slags, 5 parts of gypsum.
Embodiment 2：
The oil well cement formulations include the raw material of following parts by weight：19 parts of hydraulicity calcium carbonate, 19 parts of silica, 23
Part sandstone, 15 parts of lime stones, 15 parts of flyash, 8 parts of sulfate slags, 7 parts of gypsum.
Embodiment 3：
The oil well cement formulations include the raw material of following parts by weight：22 parts of hydraulicity calcium carbonate, 22 parts of silica, 20
Part sandstone, 12 parts of lime stones, 18 parts of flyash, 7 parts of sulfate slags, 9 parts of gypsum.
The oil well cement formulations use hydraulicity calcium carbonate, silica, sandstone, lime stone, flyash, sulfate slag, and
And mix appropriate gypsum.The oil-well cement can solidify quickly afterwards in injection oil well, and reach phase in a short time
When intensity, the cement after hardening has good stability and impermeability, has for the corrosive medium in oil well good
Corrosion resistance, one can be formed in well layer and flow to ground from oil reservoir, completely cut off good oil flow channel.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (4)
1. a kind of oil well cement formulations, it is characterised in that the oil well cement formulations include the raw material of following parts by weight：16~22
Part hydraulicity calcium carbonate, 16~22 parts of silica, 20~26 parts of sandstone, 12~18 parts of lime stones, 12~18 parts of flyash, 7
~10 parts of sulfate slags, 5~9 parts of gypsum.
2. according to a kind of oil well cement formulations described in claim 1, it is characterised in that：The oil well cement formulations include as follows
The raw material of parts by weight：16 parts of hydraulicity calcium carbonate, 16 parts of silica, 26 parts of sandstone, 18 parts of lime stones, 12 parts of flyash,
10 parts of sulfate slags, 5 parts of gypsum.
3. according to a kind of oil well cement formulations described in claim 1, it is characterised in that：The oil well cement formulations include as follows
The raw material of parts by weight：19 parts of hydraulicity calcium carbonate, 19 parts of silica, 23 parts of sandstone, 15 parts of lime stones, 15 parts of flyash, 8
Part sulfate slag, 7 parts of gypsum.
4. according to a kind of oil well cement formulations described in claim 1, it is characterised in that：The oil well cement formulations include as follows
The raw material of parts by weight：22 parts of hydraulicity calcium carbonate, 22 parts of silica, 20 parts of sandstone, 12 parts of lime stones, 18 parts of flyash, 7
Part sulfate slag, 9 parts of gypsum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247401.0A CN107162448A (en) | 2017-04-11 | 2017-04-11 | Oil well cement formulations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247401.0A CN107162448A (en) | 2017-04-11 | 2017-04-11 | Oil well cement formulations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107162448A true CN107162448A (en) | 2017-09-15 |
Family
ID=59849108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710247401.0A Pending CN107162448A (en) | 2017-04-11 | 2017-04-11 | Oil well cement formulations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107162448A (en) |
-
2017
- 2017-04-11 CN CN201710247401.0A patent/CN107162448A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170915 |