CN109609108A - High temperature and pressure well cementation additive - Google Patents
High temperature and pressure well cementation additive Download PDFInfo
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- CN109609108A CN109609108A CN201910092731.6A CN201910092731A CN109609108A CN 109609108 A CN109609108 A CN 109609108A CN 201910092731 A CN201910092731 A CN 201910092731A CN 109609108 A CN109609108 A CN 109609108A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
- C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
- C09K8/487—Fluid loss control additives; Additives for reducing or preventing circulation loss
Abstract
The invention discloses a kind of high temperature and pressure well cementation additives, including component A and component B, component A include the raw material of following parts by weight: 20 parts of water-reducing agent, 5 parts of hydroxyl ethylene-diphosphonic acid, 1 part of zeolite powder and 30 parts of water；Component B includes the raw material of following parts by weight: 5 parts of coconut shell flour, 0.5 part of cane powder, 3 parts of sodium carboxymethylcellulose, 2 parts of zinc acrylate resin, 5 parts of polyvinylpyrrolidone and 200 parts of water；Wherein, coconut shell flour the preparation method comprises the following steps: be added into crushed material 10 times of its gross mass amount 4M aqueous sulfuric acid, impregnate 2h, it is placed in 120 DEG C of vacuum oven and dries, obtain pretreatment coconut-shell slag, ethyl alcohol, titanate coupling agent and potassium hydroxide mixing are added into pretreatment coconut-shell slag, and the 6h that flows back, it is placed in 120 DEG C of vacuum oven and dries, crush, as coconut shell flour.The present invention passes through the synergy of component A and component B, effectively extends the thickening time of cement slurry.
Description
Technical field
The present invention relates to technical field of petroleum extraction.It is more particularly related to a kind of high temperature and pressure well cementation addition
Agent.
Background technique
Casing and cementing is the important link that oil/gas well is drilled in well technical process, and cement slurry cementing technology, which refers to, infuses cement
Enter the annular space between the borehole wall and casing, sealing is achieved the effect that by cement.The quality of cementing quality determines the production of oil-gas Layer
It can be with the service life of oil/gas well.Oil-gas exploration and development gradually extends to stratum depths therewith at present, and corresponding formation temperature gradually rises
Height, oil-gas field development center of gravity is gradually to the big temperature difference well cementation transfer such as deep-well, ultradeep well, still, with temperature in high temperature well cementation
It increases, cement slurry thickening is very fast, seriously affects the normal construction of well cementing operation.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of high temperature and pressure well cementation additives, pass through the connection of component A and component B
Cooperation is used, and the thickening time of cement slurry is effectively extended.
In order to realize these purposes and other advantages according to the present invention, a kind of high temperature and pressure well cementation additive is provided,
Including component A and component B, component A includes the raw material of following parts by weight: 20 parts of water-reducing agent, 5 parts of hydroxyl ethylene-diphosphonic acid, zeolite
1 part of powder and 30 parts of water；Component B includes the raw material of following parts by weight: 5 parts of coconut shell flour, 0.5 part of cane powder, carboxymethyl cellulose
3 parts of plain sodium, 2 parts of zinc acrylate resin, 5 parts of polyvinylpyrrolidone and 200 parts of water；
Wherein, coconut shell flour the preparation method comprises the following steps: coconut husk is crushed, be sieved, obtain crushed material, it is total that it is added into crushed material
The aqueous sulfuric acid of the 4M of 10 times of quality amounts impregnates 2h, coconut-shell slag is obtained by filtration, coconut-shell slag is placed in 120 DEG C of vacuum drying
It is dried in case, obtains pretreatment coconut-shell slag, 10 times of its gross mass ethyl alcohol measured, 2 times of titaniums measured are added into pretreatment coconut-shell slag
Acid esters coupling agent, 0.5 times of potassium hydroxide mixing measured, and the 6h that flows back, are obtained by filtration filter residue, are rinsed with water filter residue 3 times, methanol punching
It washes 2 times, is subsequently placed in 120 DEG C of vacuum oven and dries, crush, as coconut shell flour.
Preferably, component A's the preparation method comprises the following steps:
Zeolite powder is added to the water, 50 DEG C is placed in, heats 10min under conditions of 300r/min, then divide 5 equivalent by hydroxyl
Ethylene-diphosphonic acid is added and is uniformly mixed, and obtains the first mixture；Water-reducing agent is added in the first mixture, and water-reducing agent is added
The sodium chloride of 0.1 times of gross mass amount, heats 2h under the conditions of being placed in 80 DEG C, obtains component A.
Preferably, component B's the preparation method comprises the following steps:
Sodium carboxymethylcellulose, polyvinylpyrrolidone are added in the methanol of 20 times of sodium carboxymethylcellulose amounts, until complete
Then the acetic anhydride of 0.1 times of sodium carboxymethylcellulose amount is added in fully dissolved, 10min is heated under the conditions of being placed in 40 DEG C, and sugarcane is added
Powder is placed in 300r/min stirring most suspension, adds zinc acrylate resin, coconut shell flour, methanol is removed under reduced pressure, obtain the second mixing
Object adds water in the second mixture, is placed in 300r/min stirring most suspension, as component B.
Preferably, water-reducing agent includes the raw material of following parts by weight: 4 parts of methacrylic sulfonic acids sodium, aminobenzenesulfonic acid 1
Part, 0.1 part of hydroquinone, 30 parts of isoamyl alcohol polyoxyethylene ether, 10 parts of polypropylene glycol double methacrylate, hydroxypropyl cellulose 2
Part, 8 parts of modified oyster powder, 5 parts of maleic anhydride and 50 parts of methanol.
Preferably, water-reducing agent the preparation method comprises the following steps:
S1, methacrylic sulfonic acids sodium, hydroquinone are mixed, and is dissolved in methanol, water, second that mass ratio is 1:1:0.5
In nitrile solution, with vinegar acid for adjusting pH to 3,30min is heated under the conditions of being placed in 40 DEG C, the hydroxide for being then 4% with mass fraction
The dissolution of potassium water adjusts pH to 6, and aminobenzenesulfonic acid, isoamyl alcohol polyoxyethylene ether, polypropylene glycol double methacrylate, maleic is added
Dicarboxylic anhydride heats under the conditions of being placed in 45 DEG C, and vacuum distillation removes methanol-water-acetonitrile solution, obtains third mixture；
S1,40min is roasted under the conditions of oyster shell is placed in 500 DEG C, crushed, sieving obtains the oyster shell that partial size is 100 mesh
Powder is added in the aqueous hydrochloric acid solution of the 4M of 10 times of its gross mass amounts to oyster shell, is impregnated 10h, is filtered and be washed to oyster shell powder
PH to neutrality, oyster shell powder is placed under the conditions of 500 DEG C and roasts 20min, 20 times of its gross mass amounts are added into oyster shell powder
Methanol stirring most suspension, silane coupling agents, the maleic anhydride of 0.5 times of amount that 2 times of oyster shell powder gross mass amounts are added be mixed
It closes, 2h is heated under the conditions of being placed in 40 DEG C, then rinsed 3 times with methanol, it is neutrality that water, which is rinsed to pH, is dried under the conditions of being placed in 120 DEG C
It is dry, and crush, as arrive modified oyster powder；
S3, hydroxypropyl cellulose is dissolved in methanol, modified ostreae testa pulverata, third mixture is then added, is placed in 300r/
2h is stirred under conditions of min, obtains water-reducing agent.
Preferably, cane powder the preparation method comprises the following steps: sugarcane is removed the peel, and squeeze, obtain sugar-cane juice and bagasse, will be sweet
Bagasse is placed in 120 DEG C of drying box and dries, and grinds 30min, and sieving obtains pretreatment cane powder, then will pre-process sugarcane
Powder, sugar-cane juice mixing, and the potassium hydroxide aqueous solution that the mass fraction that 10 times of cane powder gross mass amounts of pretreatment are added is 4%,
3h is heated under the conditions of being placed in 80 DEG C, with propylene acid for adjusting pH to neutrality, adds the dioxy of 5 times of cane powder gross mass amounts of pretreatment
SiClx mixing, drains, and is placed in drying in 50 DEG C of vacuum oven, obtains cane powder.
Preferably, the partial size average out to 50nm of silica.
The present invention is include at least the following beneficial effects:
The first, the present invention is wrapped up calcium ion, by the filming function of component B by addO-on therapy A, in high temperature
It is formed by coating film to component B under effect to destroy, so that cement gradually aquation, effectively extends the thickening time, and can
The difference of densities for reducing Behavior of Hardened Cement Paste, improves the compression strength of Behavior of Hardened Cement Paste.
The second, component B handles the active group and water for carrying out processing one side coupling agent by using titanate coupling agent
Calcium ion, silicate in mud etc. are had an effect, and the dispersibility of cement slurry can be improved, on the other hand by coconut shell flour in cement slurry
In, the gap of Behavior of Hardened Cement Paste can be reduced, the compression strength of Behavior of Hardened Cement Paste is improved；By adding cane powder, on the one hand under the high temperature conditions,
Graft copolymerization occurs for sucrose fiber and acrylic acid in cane sugar powder, is formed and has sticking polymer, and polymer cooperates with carboxymethyl
Sodium cellulosate, polyvinylpyrrolidone form film, coat to calcium ion, effectively slow down the aquation of Behavior of Hardened Cement Paste, on the other hand
Cane powder is modified by using silane coupling agent, cane powder can be made evenly dispersed in cement slurry, reduce Behavior of Hardened Cement Paste
Gap.
Third, component A, addition water-reducing agent, hydroxyl ethylene-diphosphonic acid and zeolite powder, can not only play the effect of diminishing,
And water-reducing agent and hydroxyl ethylene-diphosphonic acid provide an acidic environment for cement slurry, with (>=100 DEG C) under the high temperature conditions to group
The film for dividing B to be formed by plays destruction, makes the slow aquation of cement slurry, and then extend the thickening time of cement slurry；To oyster
Shell powder is modified processing, can effectively improve the dispersibility of oyster shell powder in water, and then oyster shell powder is made to be dispersed in water
In mud.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification
Text can be implemented accordingly.
<embodiment 1>
High temperature and pressure well cementation additive, including component A and component B, component A include the raw material of following parts by weight: diminishing
20 parts of agent, 5 parts of hydroxyl ethylene-diphosphonic acid, 1 part of zeolite powder and 30 parts of water；Component B includes the raw material of following parts by weight: coconut husk
5 parts of powder, 0.5 part of cane powder, 3 parts of sodium carboxymethylcellulose, 2 parts of zinc acrylate resin, 5 parts of polyvinylpyrrolidone and water 200
Part；
Wherein, coconut shell flour the preparation method comprises the following steps: coconut husk is crushed, be sieved, obtain crushed material, it is total that it is added into crushed material
The aqueous sulfuric acid of the 4M of 10 times of quality amounts impregnates 2h, coconut-shell slag is obtained by filtration, coconut-shell slag is placed in 120 DEG C of vacuum drying
It is dried in case, obtains pretreatment coconut-shell slag, 10 times of its gross mass ethyl alcohol measured, 2 times of titaniums measured are added into pretreatment coconut-shell slag
Acid esters coupling agent, 0.5 times of potassium hydroxide mixing measured, and the 6h that flows back, are obtained by filtration filter residue, are rinsed with water filter residue 3 times, methanol punching
It washes 2 times, is subsequently placed in 120 DEG C of vacuum oven and dries, crush, as coconut shell flour.
Component A's the preparation method comprises the following steps:
Zeolite powder is added to the water, 50 DEG C is placed in, heats 10min under conditions of 300r/min, then divide 5 equivalent by hydroxyl
Ethylene-diphosphonic acid is added and is uniformly mixed, and obtains the first mixture；Water-reducing agent is added in the first mixture, and water-reducing agent is added
The sodium chloride of 0.1 times of gross mass amount, heats 2h under the conditions of being placed in 80 DEG C, obtains component A.
Component B's the preparation method comprises the following steps:
Sodium carboxymethylcellulose, polyvinylpyrrolidone are added in the methanol of 20 times of sodium carboxymethylcellulose amounts, until complete
Then the acetic anhydride of 0.1 times of sodium carboxymethylcellulose amount is added in fully dissolved, 10min is heated under the conditions of being placed in 40 DEG C, and sugarcane is added
Powder is placed in 300r/min stirring most suspension, adds zinc acrylate resin, coconut shell flour, methanol is removed under reduced pressure, obtain the second mixing
Object adds water in the second mixture, is placed in 300r/min stirring most suspension, as component B.
Water-reducing agent includes the raw material of following parts by weight: 4 parts of methacrylic sulfonic acids sodium, 1 part of aminobenzenesulfonic acid, to benzene two
0.1 part of phenol, 30 parts of isoamyl alcohol polyoxyethylene ether, 10 parts of polypropylene glycol double methacrylate, 2 parts of hydroxypropyl cellulose, modification are male
8 parts of oyster shells, 5 parts of maleic anhydride and 50 parts of methanol.
Water-reducing agent the preparation method comprises the following steps:
S1, methacrylic sulfonic acids sodium, hydroquinone are mixed, and is dissolved in methanol, water, second that mass ratio is 1:1:0.5
In nitrile solution, with vinegar acid for adjusting pH to 3,30min is heated under the conditions of being placed in 40 DEG C, the hydroxide for being then 4% with mass fraction
The dissolution of potassium water adjusts pH to 6, and aminobenzenesulfonic acid, isoamyl alcohol polyoxyethylene ether, polypropylene glycol double methacrylate, maleic is added
Dicarboxylic anhydride heats under the conditions of being placed in 45 DEG C, and vacuum distillation removes methanol-water-acetonitrile solution, obtains third mixture；
S1,40min is roasted under the conditions of oyster shell is placed in 500 DEG C, crushed, sieving obtains the oyster shell that partial size is 100 mesh
Powder is added in the aqueous hydrochloric acid solution of the 4M of 10 times of its gross mass amounts to oyster shell, is impregnated 10h, is filtered and be washed to oyster shell powder
PH to neutrality, oyster shell powder is placed under the conditions of 500 DEG C and roasts 20min, 20 times of its gross mass amounts are added into oyster shell powder
Methanol stirring most suspension, silane coupling agents, the maleic anhydride of 0.5 times of amount that 2 times of oyster shell powder gross mass amounts are added be mixed
It closes, 2h is heated under the conditions of being placed in 40 DEG C, then rinsed 3 times with methanol, it is neutrality that water, which is rinsed to pH, is dried under the conditions of being placed in 120 DEG C
It is dry, and crush, as arrive modified oyster powder；
S3, hydroxypropyl cellulose is dissolved in methanol, modified ostreae testa pulverata, third mixture is then added, is placed in 300r/
2h is stirred under conditions of min, obtains water-reducing agent.
Cane powder the preparation method comprises the following steps: sugarcane is removed the peel, and squeeze, obtain sugar-cane juice and bagasse, bagasse is placed in
It is dried in 120 DEG C of drying box, grinds 30min, sieving obtains pretreatment cane powder, then will pre-process cane powder, sugar-cane juice
Mixing, and the potassium hydroxide aqueous solution that the mass fraction that 10 times of cane powder gross mass amounts of pretreatment are added is 4%, are placed in 80 DEG C of items
3h is heated under part, with propylene acid for adjusting pH to neutrality, adds the silica mixing of 5 times of cane powder gross mass amounts of pretreatment,
It drains, is placed in drying in 50 DEG C of vacuum oven, obtains cane powder.
The partial size average out to 50nm of silica.
<comparative example 1>
High temperature and pressure well cementation additive is prepared according to the method for embodiment 1, wherein the difference is that not addO-on therapy A.
<comparative example 2>
High temperature and pressure well cementation additive is prepared according to the method for embodiment 1, wherein the difference is that not addO-on therapy B.
<comparative example 3>
High temperature and pressure well cementation additive is prepared according to the method for embodiment 1, wherein the difference is that not adding in component A
Water-reducing agent.
<comparative example 4>
High temperature and pressure well cementation additive is prepared according to the method for embodiment 1, wherein the difference is that the oyster shell in water-reducing agent
Powder is without modification.
<comparative example 5>
High temperature and pressure well cementation additive is prepared according to the method for embodiment 1, wherein the difference is that not adding coconut palm in component B
Shell powder and cane powder.
<comparative example 6>
High temperature and pressure well cementation additive is prepared according to the method for embodiment 1, wherein the difference is that coconut shell flour in component B
Preparation method specifically: crush coconut husk, being placed in 120 DEG C of vacuum oven dry, pulverize, and sieving obtains coconut shell flour；
The preparation method of cane powder specifically: sugarcane is removed the peel, and is cut into the section of 3cm long, is subsequently placed in 120 DEG C of vacuum
It dries, crushes in drying box, sieving obtains cane powder.
<performance characterization>
By embodiment 1, the method for comparative example 1~6 preparation high temperature and pressure well cementation additive；Add respectively into 7 groups of cement slurries
Enter the additive of dry ash (cement+quartz sand) quality 1%, wherein existing cement slurry it is specific proportion be 4% fluid loss agent+
The defoaming agent of the dispersing agent+0.15% of 2.0% corrosion inhibiter+1.0%, 6 groups of corresponding additions in embodiment 1, comparative example 3~6
The specific Adding Way of agent are as follows: component A is first added into cement slurry, stirs 1h, component B is added, 30min is stirred, to cement
The performance of mud is detected.
1, mud system performance detection under the conditions of 150 DEG C
150 DEG C, the thickening time of cement slurry, API fluid loss and slip consistency are detected under the conditions of 21Mpa,
Testing result is as shown in table 1；
Table 1, density and thickening time
| Group | API fluid loss mL/30min | Slip consistency, Bc | Thickening time (min) |
| Control group | 30 | 8 | 312 |
| Embodiment 1 | 20 | 25 | 407 |
| Comparative example 1 | 28 | 8 | 346 |
| Comparative example 2 | 27 | 10 | 328 |
| Comparative example 3 | 25 | 12 | 361 |
| Comparative example 5 | 24 | 16 | 377 |
| Comparative example 6 | 22 | 21 | 391 |
The experimental data of comparative analysis embodiment 1, comparative example 1 and comparative example 2 can main constituent A and component B synergy
The thickening time of cement slurry can just be significantly improved；
Comparative analysis implements 1, comparative example 3, adds water-reducing agent known to the experimental data of comparative example 4 in component A and to subtracting
Oyster shell powder in aqua is modified processing, effectively improves the thickening time of cement slurry；
Adding coconut shell flour and cane powder known to comparative analysis embodiment 1,5 experimental data of comparative example in component B can subtract
The speed of slow hydrated cementitious；The present invention known to the experimental data of comparative analysis embodiment 1 and comparative example 6 prepares coconut shell flour and sugarcane
The method of powder is more preferable to the effect for extending the thickening time.
2, the difference of densities of Behavior of Hardened Cement Paste
Cement slurry is placed in 150 DEG C, conserves 48h under the conditions of 21Mpa, detects the difference of densities of Behavior of Hardened Cement Paste, testing result
As shown in table 2；
Table 2, Behavior of Hardened Cement Paste difference of densities
| Group | Behavior of Hardened Cement Paste difference of densities (g/cm3) |
| Embodiment 1 | 0 |
| Comparative example 1 | 0.15 |
| Comparative example 2 | 0.18 |
| Comparative example 4 | 0.05 |
| Comparative example 5 | 0.03 |
| Comparative example 6 | 0.01 |
To the connection of instant component A and component B known to the experimental data of analysis embodiment 1, comparative example 1 and comparative example 2
It closes using the difference of densities that can effectively reduce Behavior of Hardened Cement Paste；Known to comparative analysis embodiment 1, comparative example 5 and comparative example 6 originally
The method that invention prepares coconut shell flour and cane powder can reduce the difference of densities of Behavior of Hardened Cement Paste.
3, Mechanical Behavior of Hardened Cement Paste detects
The compression strength of Behavior of Hardened Cement Paste is measured after conserving 7 days under the conditions of 150 DEG C, 21Mpa, measurement result is as shown in table 3；
Table 3, mechanical performance data
| Group | Compression strength (Mpa) |
| Embodiment 1 | 45.1 |
| Comparative example 1 | 37.9 |
| Comparative example 2 | 34.5 |
| Comparative example 3 | 35.5 |
| Comparative example 6 | 42.8 |
Instant component A and component B known to the experimental data of comparative analysis embodiment 1, comparative example 1 and comparative example 2
The compression strength that can effectively improve Behavior of Hardened Cement Paste is used in combination；
The present invention adds water-reducing agent, component in component A known to comparative analysis embodiment 1, comparative example 3 and comparative example 6
Method in B prepares coconut shell flour and cane powder, can improve the compression strength of Behavior of Hardened Cement Paste.
4, water-reducing agent settling test
2 groups of water-reducing agents are obtained by embodiment 1, comparative example 4,2 groups of water-reducing agents are separately added into the water of 2 parts of equivalent, are stirred
Most suspension is placed under the conditions of 150 DEG C, is stood, and observation sedimentation situation after 5h, the results are shown in Table 4 for sedimentation；
Table 4, sedimentation situation
| Group | Settle situation |
| Embodiment 1 | Delaminating deposition does not occur |
| Comparative example 4 | Delaminating deposition is more obvious |
The result shows that the present invention can be improved the dispersibility of oyster shell powder in water to the modification of oyster shell powder, slow down oyster
The sedimentation of shell powder.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and embodiment shown and described herein.
Claims (7)
- The additive 1. high temperature and pressure is cemented the well, which is characterized in that including component A and component B, component A includes following parts by weight Raw material: 20 parts of water-reducing agent, 5 parts of hydroxyl ethylene-diphosphonic acid, 1 part of zeolite powder and 30 parts of water；Component B includes following parts by weight Raw material: 5 parts of coconut shell flour, 0.5 part of cane powder, 3 parts of sodium carboxymethylcellulose, 2 parts of zinc acrylate resin, 5 parts of polyvinylpyrrolidone, with And 200 parts of water；Wherein, coconut shell flour the preparation method comprises the following steps: coconut husk is crushed, be sieved, obtain crushed material, its gross mass is added into crushed material The aqueous sulfuric acid of the 4M of 10 times of amounts impregnates 2h, coconut-shell slag is obtained by filtration, coconut-shell slag is placed in 120 DEG C of vacuum oven Drying obtains pretreatment coconut-shell slag, and 10 times of its gross mass ethyl alcohol measured, 2 times of titanate esters measured are added into pretreatment coconut-shell slag Coupling agent, 0.5 times of potassium hydroxide mixing measured, and the 6h that flows back, are obtained by filtration filter residue, are rinsed with water filter residue 3 times, methanol rinses 2 It is secondary, it is subsequently placed in 120 DEG C of vacuum oven and dries, crush, as coconut shell flour.
- The additive 2. high temperature and pressure as described in claim 1 is cemented the well, which is characterized in that component A's the preparation method comprises the following steps:Zeolite powder is added to the water, 50 DEG C is placed in, heats 10min under conditions of 300r/min, then divide 5 equivalent by hydroxyl ethylidene Di 2 ethylhexyl phosphonic acid is added and is uniformly mixed, and obtains the first mixture；Water-reducing agent is added in the first mixture, and the total matter of water-reducing agent is added The sodium chloride for measuring 0.1 times of amount, heats 2h under the conditions of being placed in 80 DEG C, obtains component A.
- The additive 3. high temperature and pressure as described in claim 1 is cemented the well, which is characterized in that component B's the preparation method comprises the following steps:Sodium carboxymethylcellulose, polyvinylpyrrolidone are added in the methanol of 20 times of sodium carboxymethylcellulose amounts, until completely molten Then the acetic anhydride of 0.1 times of sodium carboxymethylcellulose amount is added in solution, 10min is heated under the conditions of being placed in 40 DEG C, and cane powder is added, It is placed in 300r/min stirring most suspension, zinc acrylate resin, coconut shell flour is added, methanol is removed under reduced pressure, obtain the second mixture, It adds water in the second mixture, is placed in 300r/min stirring most suspension, as component B.
- The additive 4. high temperature and pressure as described in claim 1 is cemented the well, which is characterized in that water-reducing agent includes following parts by weight Raw material: 4 parts of methacrylic sulfonic acids sodium, 1 part of aminobenzenesulfonic acid, 0.1 part of hydroquinone, 30 parts of isoamyl alcohol polyoxyethylene ether, 10 parts of polypropylene glycol double methacrylate, 2 parts of hydroxypropyl cellulose, 8 parts of modified oyster powder, 5 parts of maleic anhydride, Yi Jijia 50 parts of alcohol.
- The additive 5. high temperature and pressure as claimed in claim 4 is cemented the well, which is characterized in that water-reducing agent the preparation method comprises the following steps:S1, methacrylic sulfonic acids sodium, hydroquinone are mixed, and it is molten to be dissolved in methanol, water, acetonitrile that mass ratio is 1:1:0.5 In liquid, with vinegar acid for adjusting pH to 3,30min is heated under the conditions of being placed in 40 DEG C, the potassium hydroxide water for being then 4% with mass fraction Dissolution adjusts pH to 6, and aminobenzenesulfonic acid, isoamyl alcohol polyoxyethylene ether, polypropylene glycol double methacrylate, maleic acid is added Acid anhydride heats under the conditions of being placed in 45 DEG C, and vacuum distillation removes methanol-water-acetonitrile solution, obtains third mixture；S1,40min being roasted under the conditions of oyster shell is placed in 500 DEG C, crushed, sieving obtains the oyster shell powder that partial size is 100 mesh, It is added to oyster shell in the aqueous hydrochloric acid solution of the 4M of 10 times of its gross mass amounts, impregnates 10h, filter and be washed to the pH of oyster shell powder To neutrality, oyster shell powder is placed under the conditions of 500 DEG C and roasts 20min, the first of 20 times of its gross mass amounts is added into oyster shell powder The maleic anhydride of alcohol stirring most suspension, silane coupling agent, 0.5 times of amount that 2 times of oyster shell powder gross mass amounts are added mixes, and sets 2h is heated under the conditions of 40 DEG C, is then rinsed 3 times with methanol, it is neutrality that water, which is rinsed to pH, it is dried under the conditions of being placed in 120 DEG C, and It crushes, as arrives modified oyster powder；S3, hydroxypropyl cellulose is dissolved in methanol, modified ostreae testa pulverata, third mixture is then added, is placed in 300r/min's Under the conditions of stir 2h, obtain water-reducing agent.
- The additive 6. high temperature and pressure as described in claim 1 is cemented the well, which is characterized in that cane powder the preparation method comprises the following steps: by sweet Sugarcane peeling, and squeeze, sugar-cane juice and bagasse are obtained, bagasse is placed in 120 DEG C of drying box and is dried, grinds 30min, mistake Sieve obtains pretreatment cane powder, then will pre-process cane powder, sugar-cane juice mixing, and pretreatment cane powder gross mass 10 is added The potassium hydroxide aqueous solution that the mass fraction of amount is 4% again, heats 3h under the conditions of being placed in 80 DEG C, with propylene acid for adjusting pH into Property, the silica mixing of 5 times of cane powder gross mass amounts of pretreatment is added, drains, is placed in 50 DEG C of vacuum oven It is dry, obtain cane powder.
- The additive 7. high temperature and pressure as claimed in claim 6 is cemented the well, which is characterized in that the partial size average out to of silica 50nm。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112500842A (en) * | 2021-01-10 | 2021-03-16 | 黄金平 | Preparation method of horizontal well cementing cement slurry |
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| CN104099072A (en) * | 2014-06-17 | 2014-10-15 | 山东聚鑫化工有限公司 | Low temperature oil well early strength well cementing agent |
| CN104650836A (en) * | 2014-12-22 | 2015-05-27 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Horizontal well cement paste |
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2019
- 2019-01-30 CN CN201910092731.6A patent/CN109609108A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434093A (en) * | 2003-01-28 | 2003-08-06 | 刘玉军 | Quick leakage-stopping agent |
| CN103305198A (en) * | 2013-06-09 | 2013-09-18 | 中国矿业大学 | Coal mine underground borehole filling reinforcement material |
| CN104099072A (en) * | 2014-06-17 | 2014-10-15 | 山东聚鑫化工有限公司 | Low temperature oil well early strength well cementing agent |
| CN104650836A (en) * | 2014-12-22 | 2015-05-27 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Horizontal well cement paste |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112500842A (en) * | 2021-01-10 | 2021-03-16 | 黄金平 | Preparation method of horizontal well cementing cement slurry |
| CN112500842B (en) * | 2021-01-10 | 2022-08-02 | 任丘市诚亿化工有限公司 | Preparation method of horizontal well cementing cement slurry |
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