CN106947447B - Temperature-sensitive expandable microcapsule anti-gas channeling agent and anti-gas channeling cement slurry system - Google Patents
Temperature-sensitive expandable microcapsule anti-gas channeling agent and anti-gas channeling cement slurry system Download PDFInfo
- Publication number
- CN106947447B CN106947447B CN201710164944.6A CN201710164944A CN106947447B CN 106947447 B CN106947447 B CN 106947447B CN 201710164944 A CN201710164944 A CN 201710164944A CN 106947447 B CN106947447 B CN 106947447B
- Authority
- CN
- China
- Prior art keywords
- parts
- agent
- added
- cement slurry
- anti gassing
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- C09K8/493—Additives for reducing or preventing gas migration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/14—Polymerisation; cross-linking
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1033—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/18—Suspension polymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/42—Nitriles
- C08F220/44—Acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/16—Making expandable particles
- C08J9/20—Making expandable particles by suspension polymerisation in the presence of the blowing agent
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/18—Homopolymers or copolymers of nitriles
- C08J2333/20—Homopolymers or copolymers of acrylonitrile
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
The invention discloses Thermo-sensitive expanding microcapsules agent for anti gassing-out and channeling control cement slurry systems, microcapsules agent for anti gassing-out preparation is as follows: 3-4 parts of acrylonitrile being added in beaker, 0.4-0.5 parts of methyl acrylates, 2-3 parts of methyl methacrylates, 1-2 parts of lauroyl peroxides are added as initiator, 10-30 parts of low boiling point solvents are as foaming agent, 0.1-0.2 part 1, 4- butanediol dimethylacrylate is as crosslinking agent, stirring and dissolving, it is transferred to glass reaction kettle, 20-25 parts of nano silicas are added as dispersing agent, 300-350 parts of deionized waters are added, 20-24h is reacted in 60-70 DEG C of water bath with thermostatic control under nitrogen protection, cooling, washing, it is dry.The channeling control cement slurry system includes: 100 parts of oil-well cement, 1.5-2 parts of fluid loss agent, 2-3 parts of dispersing agent, 0.1-1 parts of agent for anti gassing-out, 0-3 parts of retarder, 0.2 part of defoaming agent, 0-50 parts of density adjuster, 44 parts of water.The present invention can effectively make up Behavior of Hardened Cement Paste volume contraction, and packing formation fluid prevents channelling, and prevention annular space phenomenon with pressure occurs, and extend oil well service life.
Description
Technical field
The present invention relates to a kind of Thermo-sensitive expanding microcapsules agent for anti gassing-out in cementing slurry field and its preparing anti-gas channeling
Application in mortar architecture.
Background technique
Volume contraction in oil-well cement hydration process, be cause cement sheath interface agglutination it is of poor quality, induce well oil,
The main reason for annular space is with pressure after gas and water channelling and oil layer pollution, operation, this is that the cementing technology hardly possible solved very well is not yet received
Topic.Volume contraction can make the pore pressure of cement slurry column reduce (gelling is weightless), volume after solidification to cement slurry in the plastic state
It shrinks make between cement sheath and stratum and casing cementing to go wrong, forms microgap, 95% or more of shrinkage occurs in water
After mud final set, volume shrinkage mass is the 2.6%-5.0% of cement slurry total volume, and the volume contraction of cement slurry both influences to cement the well
Quality forms potential risk, and will cause petroleum resources and be largely lost.
It is closing micro-loop empty gap to improve the effective of two interface cementing quality of Behavior of Hardened Cement Paste that swelling agent is added in cement
One of measure.There are many swelling agent type used both at home and abroad, and the mode of action of swelling agent mainly has aeration, method of getting angry, solid phase
Plavini etc., traditional agent for anti gassing-out are mainly metallic aluminium and its oxygenate, latex class, polyvinyl alcohol and calcium sulfate.But it is existing
Agent for anti gassing-out has the following problems: class of getting angry agent for anti gassing-out (such as KQ series) has the uncontrollable defect of gas forming amount；Latex class is anti-
Has channeling agent (oil field deep well well cementation multiple-effect latex agent for anti gassing-out and preparation method thereof CN103834374A) additive amount is larger, when depositing
Demulsification is also occurred that when storing temperature is lower, influences anti-gas channeling effect；Polyvinyl alcohol cannot use in high temperature and high salt environment；Solid phase
Expansion class agent for anti gassing-out (such as Zheng Guosheng plastic expansion channeling control cement slurry architectural study and application [J] oil drilling technology,
2013,35 (5): 52-55) main component be calcium sulfate, major defect is expansion character deficiency, Bulking Time, expansion well depth
It is uncontrollable.
Summary of the invention
The purpose of the present invention is to provide Thermo-sensitive expanding microcapsules agent for anti gassing-out, which is a kind of heat volume
Changed microcapsules, gas forming amount is controllable, determine temperature play a role and be coated it is alkaline-resisting, ground performance stablize, do not influence
Normal mashing with slurry, construction technology are simply easily promoted, are had a vast market foreground.
Another object of the present invention also resides in the gas-tight provided using the preparation of above-mentioned Thermo-sensitive expanding microcapsules agent for anti gassing-out
Channeling water mud system, the channeling control cement slurry system can start to expand in predeterminated position, effectively make up Behavior of Hardened Cement Paste volume contraction, envelope
Channelling is prevented every formation fluid, prevention annular space phenomenon with pressure occurs, and improves oil well productivity, extends oil well service life.
To reach the above technical purpose, the present invention provides following technical scheme.
Thermo-sensitive expanding microcapsules agent for anti gassing-out is prepared by following components using suspension polymerization, and process is as follows: burning
Addition 3-4 parts of acrylonitrile (AN), 0.4-0.5 parts of methyl acrylates (MA), 2-3 parts of methyl methacrylates (MMA) in cup, then plus
Enter 1-2 parts of lauroyl peroxides (LPO) as initiator, 10-30 parts of low boiling point solvents are as foaming agent, 0.1-0.2 parts of Isosorbide-5-Nitraes-
Butanediol dimethylacrylate (BDDMA) is used as crosslinking agent, and electromagnetic agitation dissolution is transferred to glass reaction kettle, 20- is then added
300-350 parts of deionized waters are added as dispersing agent in 25 parts of nano silicas, stir 8- with the speed of 1200r/min
10min, under nitrogen protection after 60-70 DEG C of water bath with thermostatic control reaction 20-24h, cooling, washing, drying are to get microcapsules anti-gas channeling
Agent, above-mentioned substance are parts by weight.
Acrylonitrile (AN), methyl acrylate (MA), methyl methacrylate under the initiation of lauroyl peroxide (LPO)
(MMA) it is copolymerized to form long-chain linear molecule, line under the action of 1,4-butanediol dimethylacrylate (BDDMA)
Type molecule, which is mutually bonded, is cross-linked into network molecular structure, and low boiling point solvent is gradually by netted point under the action of nano silica
Attached bag is wrapped up in, and Thermo-sensitive expanding microcapsules are formed.
The low boiling point solvent is organic solvent of the gasification temperature within the scope of -40-40 DEG C, such as propane, normal butane, isobutyl
Alkane, pentane, isopentane etc..
The Thermo-sensitive expanding microcapsules agent for anti gassing-out is a kind of changed microcapsules of heat volume, has thermoplasticity
Shell, interior packet low boiling point organic solvent are generally 5-500 μm according to different purposes its diameters and differ.
The wall material of the microcapsules be acrylonitrile (AN), methyl acrylate (MA), methyl methacrylate (MMA) three copolymerization
Object, core material are low boiling point solvent, and property is stablized under the normal temperature and pressure of ground, do not influence with slurry, mashing after being individually blended with cement slurry,
When microcapsules with temperature increase and be higher than solvent boiling point when, solvent evaporation and make microcapsules gradually, uniformly vaporization expansion, more
The volume contraction of moisturizing mud, temperature decline rear wall material, which does not shrink and has, maintains the state after expansion compared with high-air-tightness,
It can guarantee that after cement slurry temperature reduces be not in the phenomenon that volume bounces back, guarantee the safety of construction.
The channeling control cement slurry system prepared using above-mentioned Thermo-sensitive expanding microcapsules agent for anti gassing-out, is pressed by following each component
Weight composition: 100 parts of oil-well cement, 1.5-2 parts of fluid loss agent, 2-3 parts of dispersing agent, 0.1-1 parts of agent for anti gassing-out, slow setting
0-3 parts of agent, 0.2 part of defoaming agent, 0-50 parts of density adjuster, 44 parts of water.
The oil-well cement is the G grade high sulfate-resistant oil well cement for meeting API specification.
The fluid loss agent is 2- acrylamide-2-methyl propane sulfonic or hydroxyethyl cellulose.
The dispersing agent is poly styrene sulfonate.
The agent for anti gassing-out is Thermo-sensitive expanding microcapsules.
The retarder is sodium lignin sulfonate or citric acid.
The defoaming agent is dimethicone or tributyl phosphate.
The density adjuster is Iron Ore Powder or barite.
Under the stirring condition of 4000 turns/min revolving speed, the above material is uniformly mixed, is then turned with 12000 turns/min
Speed is stirred and is defoamed, and Thermo-sensitive expanding microcapsules channeling control cement slurry system can be obtained.
Thermo-sensitive expanding microcapsules channeling control cement slurry system makes up cement slurry by microcapsule expansion and shrinks, and prevents because of water
Mud volume contraction causes the risk of formation fluid channelling, can effectively insulate oil-gas-water layer, has expansion rate height, cement strength
It is high, do not fail, volume stability the advantages of, overcome defect and deficiency of the existing technology.
Compared with prior art, the invention has the following advantages:
(1) the Thermo-sensitive expanding microcapsules agent for anti gassing-out has gas forming amount controllable, determines temperature and plays a role and be coated resistance to
Alkali, ground performance are stablized, and raw material is common and low in cost；
(2) Thermo-sensitive expanding microcapsules agent for anti gassing-out itself expansion multiplying power is blended at 50-70 times according to proper proportion
In cement slurry, the volume contraction during hardening of cement can be effectively made up；
(3) the expanding microcapsules channeling control cement slurry system is prepared simply, easy to spread, can be started in predeterminated position swollen
It is swollen, Behavior of Hardened Cement Paste volume contraction is made up, packing formation fluid prevents channelling, and prevention annular space phenomenon with pressure occurs, oil well productivity is improved,
Extend oil well service life.
Specific embodiment
Combined with specific embodiments below, the Thermo-sensitive expanding microcapsules agent for anti gassing-out and channeling control cement slurry system are carried out
It is described in detail.
Embodiment 1
The preparation (following substance is parts by weight) of Thermo-sensitive expanding microcapsules agent for anti gassing-out, process is as follows:
Formula 1: 3 parts of acrylonitrile, 0.4 part of methyl acrylate, 2 parts of methyl methacrylate, initiator lauroyl peroxide 1
Part, 10 parts of foaming agent iso-butane, 0.1 part of crosslinking agent 1,4-butanediol dimethylacrylate, electromagnetic agitation dissolution is transferred to reaction
Glass kettle is added 20 parts of dispersing agent nano silica, and 300 parts of deionized water, 1200r/min stirs 8-10min, nitrogen protection
After lower 62 DEG C of waters bath with thermostatic control reaction for 24 hours, cool down, washing is drying to obtain.
Formula 2: 15 parts of foaming agent iso-butane, other are identical as formula 1.
Formula 3: 20 parts of foaming agent iso-butane, other are identical as formula 1.
Formula 4: 25 parts of foaming agent iso-butane, other are identical as formula 1.
Formula 5: 30 parts of foaming agent iso-butane, other are identical as formula 1.
Influence of 1 foaming agent consumption of table to microcapsule expansion temperature
| Formula number | Optimum expansion temperature/DEG C | Receiving maximum temperature/DEG C |
| 1 | 102 | 125 |
| 2 | 98 | 123 |
| 3 | 90 | 120 |
| 4 | 87 | 119 |
| 5 | 83 | 120 |
Embodiment 2 (following substance is parts by weight)
Blank sample: 100 parts of oil-well cement, 2 parts of dispersing agents are mixed evenly up to dry-mixed material；1.5 parts of drop dehydrations
Agent, 1 part of retarder, 0.2 part of defoaming agent, which are dissolved in 44 parts of water, to stir evenly to get wet mixing material；In 4000 turns/min revolving speed
Under stirring condition, dry-mixed material is at the uniform velocity added in wet mixing material (used time 15s), is then stirred with the revolving speed of 12000 turns/min
35s simultaneously defoams to get contrast groups mortar architecture is arrived.
A kind of preparation of Thermo-sensitive expanding microcapsules channeling control cement slurry system, process are as follows:
Formula A: 100 parts of oil-well cement, 0.1 part of agent for anti gassing-out expanding microcapsules, 2 parts of dispersing agents are mixed evenly i.e.
Obtain dry-mixed material；1.5 parts of fluid loss agents, 1 part of retarder, 0.2 part of defoaming agent, which are dissolved in 44 parts of water, to stir evenly to get wet mixing material
Material；Under the stirring condition of 4000 turns/min revolving speed, dry-mixed material is at the uniform velocity added in wet mixing material (used time 15s), then with
The revolving speed stirring 35s of 12000 turns/min simultaneously defoams to get Thermo-sensitive expanding microcapsules channeling control cement slurry system is arrived.
Formula B: 0.3 part of agent for anti gassing-out microcapsules, other are identical as formula A, referring to GB/T 19139-2012 (oil well
Cement testing method) and SY/T 5504.5-2010 (the 5th part of oil well cement additive evaluation method: agent for anti gassing-out) to above-mentioned
The performance of cement slurry is evaluated, and the results are shown in Table 2, table 3.
2 blank sample of table, formula A, the cement slurry comprehensive performance of formula B at different temperatures
Note: API dehydration condition is 90 DEG C × 7.1MPa × 30min
Thickening condition is 120 DEG C × 80MPa × 60min
3 blank sample of table, formula A, the performance evaluation of gas channeling prevention for being formulated B
According to table 2, agent for anti gassing-out expanding microcapsules known to table 3 have no effect on the engineering property of cement slurry, at 50 DEG C not
Has channeling can be prevented well, this is because the characteristics of Thermo-sensitive expanding microcapsules is that fixed temperature fixed point plays a role, Initial Dilatation
Temperature is 70 DEG C, and anti-gas channeling is functional after reaching its expansion temperature, and tool has made marked progress compared with prior art.
The above is merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, can not be with limitation
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (2)
1. the channeling control cement slurry system of Thermo-sensitive expanding microcapsules agent for anti gassing-out preparation, by weight ratio by following each component
Composition: 100 parts of oil-well cement, 1.5-2 parts of fluid loss agent, 2-3 parts of dispersing agent, 0.1-1 parts of agent for anti gassing-out, 0-3 parts of retarder, disappear
0.2 part of infusion, 0-50 parts of density adjuster, 44 parts of water；
The agent for anti gassing-out is Thermo-sensitive expanding microcapsules agent for anti gassing-out, is prepared by following components using suspension polymerization, mistake
Journey is as follows: 3-4 parts of acrylonitrile, 0.4-0.5 parts of methyl acrylates, 2-3 parts of methyl methacrylates being added in beaker, add
1-2 parts of lauroyl peroxides are as initiator, and 10-30 parts of low boiling point solvents are as foaming agent, 0.1-0.2 parts of 1,4-butanediol two
Methacrylate is transferred to glass reaction kettle, 20-25 parts of nanometer titanium dioxides is then added as crosslinking agent, electromagnetic agitation dissolution
300-350 parts of deionized waters are added as dispersing agent in silicon, stir 8-10min with the speed of 1200r/min, under nitrogen protection
After 60-70 DEG C of water bath with thermostatic control reaction 20-24h, to get microcapsules agent for anti gassing-out, above-mentioned substance is attached most importance to for cooling, washing, drying
Measure part；
The low boiling point solvent is organic solvent of the gasification temperature within the scope of -40-40 DEG C, which is propane, positive fourth
Alkane, iso-butane, pentane or isopentane.
2. channeling control cement slurry system as described in claim 1, which is characterized in that the oil-well cement is G grades high sulfur resistive oil
Well cement, the fluid loss agent are 2- acrylamide-2-methyl propane sulfonic or hydroxyethyl cellulose, and the dispersing agent is polyphenyl second
Alkene sulfonate, the retarder be sodium lignin sulfonate or citric acid, the defoaming agent be dimethicone or tributyl phosphate,
The density adjuster is Iron Ore Powder or barite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164944.6A CN106947447B (en) | 2017-03-20 | 2017-03-20 | Temperature-sensitive expandable microcapsule anti-gas channeling agent and anti-gas channeling cement slurry system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164944.6A CN106947447B (en) | 2017-03-20 | 2017-03-20 | Temperature-sensitive expandable microcapsule anti-gas channeling agent and anti-gas channeling cement slurry system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106947447A CN106947447A (en) | 2017-07-14 |
| CN106947447B true CN106947447B (en) | 2019-05-10 |
Family
ID=59473602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710164944.6A Expired - Fee Related CN106947447B (en) | 2017-03-20 | 2017-03-20 | Temperature-sensitive expandable microcapsule anti-gas channeling agent and anti-gas channeling cement slurry system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106947447B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641033B (en) * | 2018-03-22 | 2020-12-01 | 三明市锦浪新材料科技有限公司 | Flame-retardant thermal expansion microcapsule and preparation method thereof |
| CN108570313B (en) * | 2018-04-09 | 2020-11-03 | 西南石油大学 | Oil well cement high-temperature retarder microcapsule and preparation method thereof |
| CN109097011B (en) * | 2018-08-13 | 2021-04-30 | 西南石油大学 | Capsule type expansion body based on ground temperature heating and method for blocking formation leakage and improving formation bearing capacity of capsule type expansion body |
| CN113444504B (en) * | 2020-03-24 | 2022-10-04 | 中国石油天然气股份有限公司 | Crystallization anti-channeling well cementation cement slurry and preparation method thereof |
| CN113045263B (en) * | 2021-03-18 | 2022-11-08 | 西南石油大学 | A kind of hybrid fiber cement-based foam composite wave absorbing material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0486080A2 (en) * | 1990-11-12 | 1992-05-20 | Casco Nobel Ab | Expandable thermoplastic microspheres and a method for the production and use thereof |
| CN101460240A (en) * | 2006-06-08 | 2009-06-17 | 阿克佐诺贝尔股份有限公司 | Microspheres |
| CN105733519A (en) * | 2016-04-19 | 2016-07-06 | 中国石油大学(华东) | Hydrophilia paraffin microcapsule and early-strength low-hydration-heat-releasing cement system |
| CN105802596A (en) * | 2016-04-19 | 2016-07-27 | 中国石油大学(华东) | Early-strength low-hydration heat evolution cement paste system applicable to deepwater shallow cementation |
-
2017
- 2017-03-20 CN CN201710164944.6A patent/CN106947447B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0486080A2 (en) * | 1990-11-12 | 1992-05-20 | Casco Nobel Ab | Expandable thermoplastic microspheres and a method for the production and use thereof |
| CN101460240A (en) * | 2006-06-08 | 2009-06-17 | 阿克佐诺贝尔股份有限公司 | Microspheres |
| CN105733519A (en) * | 2016-04-19 | 2016-07-06 | 中国石油大学(华东) | Hydrophilia paraffin microcapsule and early-strength low-hydration-heat-releasing cement system |
| CN105802596A (en) * | 2016-04-19 | 2016-07-27 | 中国石油大学(华东) | Early-strength low-hydration heat evolution cement paste system applicable to deepwater shallow cementation |
Non-Patent Citations (2)
| Title |
|---|
| 一种新型耐溶剂发泡微胶囊的制备与性能;吕国雨;《塑料》;20150218;33-36 |
| 丙烯腈－丙烯酸甲酯共聚低温热膨胀微胶囊的制备与性能;何思阳;《塑料工业》;20130520;1.2热膨胀微胶囊的制备 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106947447A (en) | 2017-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106947447B (en) | Temperature-sensitive expandable microcapsule anti-gas channeling agent and anti-gas channeling cement slurry system | |
| CN104609791B (en) | Phase-change accumulation energy double limit homoiothermic mortar and preparation method thereof | |
| Liu et al. | Effect of water‐cement ratio on pore structure and strength of foam concrete | |
| CN100572494C (en) | Microcapsule that retarding oil gas well working fluid additive discharges and preparation method thereof | |
| CN105733519B (en) | Hydrophilic paraffin microcapsules and early strength low hydration exothermic cement system | |
| CN103525387B (en) | Foamed cement slurry system and composition | |
| CN104762071B (en) | A kind of preparation method of water-base drilling fluid shale micro-nano granules sealing agent | |
| CN104140667B (en) | Modified polyurethane grouting material and preparation method and application thereof | |
| CN101921580B (en) | High temperature resistant anti-salt isolation solution and preparation method thereof | |
| CN102443383A (en) | High-water-loss, hardenable and plugging agent | |
| CN102504775A (en) | Large temperature difference cement slurry for cementing of deep well long isolation section and preparation method thereof | |
| CN107418536A (en) | A kind of high temperature resistance, anti-gas channeling, high density cementing slurry and preparation method thereof | |
| CN102086387B (en) | Filtrate reducer of cement slurry and application in cementing | |
| CN102492404A (en) | Anti-blowby cement slurry | |
| NO347297B1 (en) | Pumpable geopolymer mixture for use in oil fields | |
| CN103555304A (en) | High-efficiency oil-based flushing spacer liquid and preparation method thereof | |
| BR112012014272A2 (en) | method of using a carbohydrate-based compound as an additive to control fluid loss in a pumpable geopolymeric suspension for oil and / or gas industry applications, and method of providing a suspension | |
| CN103045214A (en) | Plugging thixotropic cement paste for oil-gas well and preparation method for same | |
| CN104263335A (en) | Low-density early-strength micro-expanding cement mortar and preparation method thereof | |
| CN105524600A (en) | Plugging while drilling agent for oil-based drilling fluid and preparation method of plugging while drilling agent | |
| CN105802596B (en) | A kind of early strong low hydration heat mortar architecture suitable for deep water shallow cementing | |
| CN104418965A (en) | Preparation method of self-healing agent for oil well cement, well cementation self-healing cement slurry and application | |
| CN106630901A (en) | Green high-performance concrete | |
| CN105753394A (en) | Paraffin microcapsule-doped high-belite cement concrete | |
| CN105602543A (en) | Acid fracturing temporary plugging agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |