CN107267127B - A kind of water shutoff agent and preparation method thereof - Google Patents
A kind of water shutoff agent and preparation method thereof Download PDFInfo
- Publication number
- CN107267127B CN107267127B CN201710510351.0A CN201710510351A CN107267127B CN 107267127 B CN107267127 B CN 107267127B CN 201710510351 A CN201710510351 A CN 201710510351A CN 107267127 B CN107267127 B CN 107267127B
- Authority
- CN
- China
- Prior art keywords
- water
- parts
- agent
- water shutoff
- graphene
- 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.)
- Active
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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- 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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/5045—Compositions based on water or polar solvents containing inorganic compounds
-
- 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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/514—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Lubricants (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of water shutoff agents and preparation method thereof, belong to oilfield exploitation chemicals preparation technical field.The present invention is by graphene powder and sodium metaperiodate, nitric acid solution filters after being stirred to react, collect residue washing after with spire bog moss, water mix grinding obtains mixed slurry, and by itself and glucose, ammonium tartrate mixed fermentation, it is dried after obtaining tunning, and and methallyl alcohol, sulfuric acid solution reaction, it is filtered after obtaining product, obtain filter cake, as modified graphene, again by itself and itaconic acid, the reactions such as catalyst discharging, obtain the polymer-modified rear and prodan of graphene, auxiliary agent etc. is mixed to obtain mixture, finally mixture is mediated and dried, it is cooling, water shutoff agent can be obtained, gained water shutoff agent of the invention has preferable water plugging effect, water shutoff agent heatproof simultaneously, resistance to salinity is had excellent performance, after injecting stratum use, it is not easy to result in blockage, the rate of oil and gas recovery can be effectively improved, with preferable prospect of the application.
Description
Technical field
The invention discloses a kind of water shutoff agents and preparation method thereof, belong to oilfield exploitation chemicals preparation technical field.
Background technique
With the continuous breakthrough deepened and inject water, side water and bottom water of water flooding degree, excess water production is
The common problem faced at present through becoming many oil fields.Excess water production will cause oil well output decline, the pit shaft burn into borehole wall
A series of problems, such as fouling and cost of sewage disposal increase, so solving the problems, such as that excess water production becomes agent for improving oilfield recovery and drop
The critical issue of low cost.In the measure of numerous water and oil controls, chemical water plugging method can due to easy to operate, water plugging and profile controlling depth
Control partially has selectivity and is used widely.
Chemical water plugging method be squeezed to producing well or the specific interval of water injection well high-intensitive water shutoff agent permanently blocked or
Again perforation improves the purpose of recovery ratio to reach steady oil control water.Currently, common water shutoff agent mainly has inorganic water shutoff agent
With organic water shutoff agent two major classes.The grain-type water shutoff agents such as general inorganic blocking agent such as clay, calcium lignosulfonate, flyash, cement, which have, to be adapted to
Property strong feature, needs for relatively heavy crude reservoir middle and later periods macropore being suitble to block, but the shortcomings that such water shutoff agent is particle
Intensity it is generally relatively low, water plugging effect is incomplete, and such water shutoff agent using when be easy to happen near wellbore zone block, Wu Faman
The injection of foot large dosage and the requirement of depth water blockoff.And organic water shutoff agent (polymer gel class, gel-like water shutoff agent) is although injection
Preferably, but its plugging strength is still weaker, it is often more important that organic water shutoff agent heatproof, resistance to salinity performance are poor, are unable to satisfy thick
The requirement of oil reservoir water blockoff.
Therefore, research and develop it is a kind of there is excellent water plugging effect, while heatproof, resistance to salinity are functional, and using when be not easy
The water shutoff agent product to result in blockage, further increases the rate of oil and gas recovery to petroleum industry and is of great significance.
Summary of the invention
Present invention mainly solves the technical issues of: it is poor for existing water shutoff agent high temperature resistance, resistance to salinity performance, no
It can be used in high temperature and high salinity environment, while water shutoff agent enters the defect that oil reservoir is also easy to produce blocking, provides a kind of water shutoff agent
And preparation method thereof.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of water shutoff agent, the raw material including following parts by weight:
30~40 parts of modified graphenes, 8~12 parts of prodans, 15~20 parts of n-vinyl pyrrolidone, 25~30 parts
Itaconic acid, 1~3 part of reinforcing agent, 0.3~0.5 part of catalyst, 1~3 part of crosslinking agent and 60~70 parts of water.
The modified graphene is prepared by the following steps:
It (1) is that 65% nitric acid is molten by 20~30g graphene powder, 10~12g sodium metaperiodate and 100~200mL mass fraction
Liquid reacts filtering, washing after 60~90min under the conditions of 85~95 DEG C, obtains cleaning filter residue；
(2) by after clean 100~200g of filter residue spire bog moss and 80~100mL water mixed grinding, mixed slurry is obtained,
Mixed slurry, 10~15g glucose, 3~5g ammonium tartrate and 600~800mL water are sealed by fermentation 5~6 at 30~40 DEG C
It, obtains tunning, and tunning is dry, obtains dried object；
(3) after mixing dried object, 80~100mL methallyl alcohol under the conditions of 130~140 DEG C, 3~5mL is added
Mass fraction is 98% sulfuric acid solution, and insulated and stirred filters after reacting 2~3h, obtains filter cake, i.e. modified graphene.
The reinforcing agent is one or both of carboxymethyl cellulose, galactomannans.
The catalyst is one or both of potassium peroxydisulfate, tert-butyl hydroperoxide.
The crosslinking agent is one or both of diethylenetriamines, dibutyl tin dilaurate.
A kind of preparation method of water shutoff agent, specific preparation step are as follows:
(1) it matches in parts by weight, carries out taking raw material；
(2) modified graphene, n-vinyl pyrrolidone, itaconic acid and catalyst are reacted to 1~2h at 70~80 DEG C
Afterwards, then with prodan, reinforcing agent, crosslinking agent and water it is mixed, obtains mixture, mixture is mediated at 30~40 DEG C
Afterwards, it dries to get water shutoff agent.
The beneficial effects of the present invention are:
(1) present invention using the good graphene of high temperature resistant and thermal conductivity as raw material, after graphene is aoxidized, then with spire peat
Moss carries out mixed fermentation, and spire bog moss can generate the substances such as organic acid during the fermentation, can make under organic acid effect
Graphene surface loads carboxyl isopolarity group, and esterification then is occurred for the carboxyl of methallyl alcohol and graphene surface,
To obtain the modified graphene containing carbon-carbon double bond, then it is with modified graphene, n-vinyl pyrrolidone and itaconic acid
Monomer is polymerize, and polymer is obtained, and the graphene in polymer can be improved the high temperature resistance of polymer, and chain in polymer
The multiple carboxyls contained in section can make polymer have preferable water imbibition, can produce volume expansion after polymer absorption, expand
Polymer afterwards can block formation pore during being passed, so that the effect of water blockoff is played, while containing in polymer
Amide group is insensitive to the invasion of metal salt, and five-membered ring structure may also suppress the hydrolysis of amide group, to improve polymerization
The resistance to salinity performance of object, can be improved the plugging strength of water shutoff agent using macromolecule polysaccharide as reinforcing agent；(2) prodan
It can be formed with the calcium and magnesium ion in water insoluble after prodan injects stratum with preferable high temperature resistant and resistance to salinity performance
In the calcirm-fluoride, magnesium fluoride, precipitated calcium silicate of water, to block water stream channel, and calcium and magnesium ion is not contained in oil reservoir, thus
Oil flow channel will not be had an impact, oil reservoir will not be blocked, using it is organic and inorganic it is compound by the way of carry out water blockoff, effect is more
Significantly.
Specific embodiment
Taking 20~30g graphene powder, 10~12g sodium metaperiodate and 100~200mL mass fraction is 65% nitric acid solution
It is added in beaker, beaker is moved into water-bath, control bath temperature is 85~95 DEG C, is stirred to react mistake after 60~90min
Filter, obtains filter residue, filter residue is washed with water 3~5 times, obtains cleaning filter residue, by clean filter residue, 100~200g spire bog moss
Be added in mortar 15~20min of grinding with 80~100mL water, obtain mixed slurry, by mixed slurry, 10~15g glucose,
3~5g ammonium tartrate and 600~800mL water are added in fermentor, are sealed by fermentation 5~6 days at 30~40 DEG C, fermentation ends
Afterwards, tunning is obtained, tunning is moved into baking oven, dry 5~6h, obtains dried object, will do at 120~130 DEG C
Dry object and 80~100mL methallyl alcohol are added in the three-necked flask with thermometer and reflux unit, and three-necked flask is moved
Entering in oil bath pan, control oil bath temperature is 130~140 DEG C, after 15~20min of agitating and heating, then it is added dropwise into three-necked flask 3~
5mL mass fraction is 98% sulfuric acid solution, and control drop rate is that 1~3mL/min is stirred to react 2~3h after being added dropwise,
Reaction terminates, and obtains product, and product is filtered, and obtains filter cake, i.e. modified graphene, finally, according to parts by weight, taking 30~40
Part modified graphene, 8~12 parts of prodans, 15~20 parts of n-vinyl pyrrolidone, 25~30 parts of itaconic acids, 1~3 part of increasing
Strong agent, 0.3~0.5 part of catalyst, 1~3 part of crosslinking agent and 60~70 parts of water, first by modified graphene, N- ethenyl pyrrolidone
Ketone, itaconic acid and catalyst are added in reaction kettle, after reacting 1~2h under the conditions of 70~80 DEG C, cooled to room temperature, out
Material, it is polymer-modified to obtain graphene, and then that graphene is polymer-modified, prodan, reinforcing agent, crosslinking agent and water are added
It is stirred 5~10min into blender, obtains mixture, mixture is transferred in kneader, is pinched under the conditions of 30~40 DEG C
30~40min is closed, obtains mediating material, then be put into material is mediated in baking oven, at 85~95 DEG C after dry 3~4h, natural cooling
To room temperature, water shutoff agent is obtained.The reinforcing agent is one or both of carboxymethyl cellulose, galactomannans.It is described
Catalyst be one or both of potassium peroxydisulfate, tert-butyl hydroperoxide.The crosslinking agent is diethylenetriamines, two
One or both of dibutyl tin laurate.
Example 1
Taking 20g graphene powder, 10g sodium metaperiodate and 100mL mass fraction is that 65% nitric acid solution is added in beaker,
Beaker is moved into water-bath, control bath temperature is 85 DEG C, filters after being stirred to react 60min, obtains filter residue, by filter residue water
Washing 3 times obtains cleaning filter residue, is added in mortar and grinds 15min clean filter residue, 100g spire bog moss and 80mL water,
Mixed slurry is obtained, mixed slurry, 10g glucose, 3g ammonium tartrate and 600mL water are added in fermentor, it is close at 30 DEG C
Seal ferment 5 days, after fermentation, tunning is obtained, tunning is moved into baking oven, dry 5h, is done at 120 DEG C
Dried object and 80mL methallyl alcohol are added in the three-necked flask with thermometer and reflux unit by dry object, and three mouthfuls are burnt
Bottle moves into oil bath pan, and control oil bath temperature is 130 DEG C, after agitating and heating 15min, then 3mL mass is added dropwise into three-necked flask
Score is 98% sulfuric acid solution, and control drop rate is that 1mL/min is stirred to react 2h after being added dropwise, and reaction terminates, and obtains
Product filters product, obtains filter cake, i.e. modified graphene, finally, according to parts by weight, taking 30 parts of modified graphenes, 8 parts
Prodan, 15 parts of n-vinyl pyrrolidone, 25 parts of itaconic acids, 1 part of carboxymethyl cellulose, 0.3 part of potassium peroxydisulfate, 1 part two
Ethylenetriamine and 60 parts of water, are first added to reaction for modified graphene, n-vinyl pyrrolidone, itaconic acid and potassium peroxydisulfate
In kettle, after reacting 1h under the conditions of 70 DEG C, cooled to room temperature, discharging, it is polymer-modified to obtain graphene, then by graphite
Alkene is polymer-modified, prodan, carboxymethyl cellulose, diethylenetriamines and water are added in blender and are stirred
5min obtains mixture, and mixture is transferred in kneader, mediates 30min under the conditions of 30 DEG C, obtains mediating material, then will pinch
It closes material to be put into baking oven, at 85 DEG C after dry 3h, cooled to room temperature obtains water shutoff agent.
Example 2
Taking 25g graphene powder, 11g sodium metaperiodate and 150mL mass fraction is that 65% nitric acid solution is added in beaker,
Beaker is moved into water-bath, control bath temperature is 90 DEG C, filters after being stirred to react 75min, obtains filter residue, by filter residue water
Washing 4 times obtains cleaning filter residue, is added in mortar and grinds 18min clean filter residue, 150g spire bog moss and 90mL water,
Mixed slurry is obtained, mixed slurry, 13g glucose, 4g ammonium tartrate and 700mL water are added in fermentor, it is close at 35 DEG C
Seal ferment 5 days, after fermentation, tunning is obtained, tunning is moved into baking oven, dry 5h, is done at 125 DEG C
Dried object and 90mL methallyl alcohol are added in the three-necked flask with thermometer and reflux unit by dry object, and three mouthfuls are burnt
Bottle moves into oil bath pan, and control oil bath temperature is 135 DEG C, after agitating and heating 18min, then 4mL mass is added dropwise into three-necked flask
Score is 98% sulfuric acid solution, and control drop rate is that 2mL/min is stirred to react 2h after being added dropwise, and reaction terminates, and obtains
Product filters product, obtains filter cake, i.e. modified graphene, finally, according to parts by weight, taking 35 parts of modified graphenes, 10 parts
Prodan, 18 parts of n-vinyl pyrrolidone, 28 parts of itaconic acids, 2 portions of galactomannans, 0.4 part of potassium peroxydisulfate, 2 part two
Ethylenetriamine and 65 parts of water, are first added to reaction for modified graphene, n-vinyl pyrrolidone, itaconic acid and potassium peroxydisulfate
In kettle, after reacting 1h under the conditions of 75 DEG C, cooled to room temperature, discharging, it is polymer-modified to obtain graphene, then by graphite
Alkene is polymer-modified, prodan, galactomannans, diethylenetriamines and water are added in blender and are stirred
8min obtains mixture, and mixture is transferred in kneader, mediates 35min under the conditions of 35 DEG C, obtains mediating material, then will pinch
It closes material to be put into baking oven, at 90 DEG C after dry 3h, cooled to room temperature obtains water shutoff agent.
Example 3
Taking 30g graphene powder, 12g sodium metaperiodate and 200mL mass fraction is that 65% nitric acid solution is added in beaker,
Beaker is moved into water-bath, control bath temperature is 95 DEG C, filters after being stirred to react 90min, obtains filter residue, by filter residue water
Washing 5 times obtains cleaning filter residue, is added in mortar and grinds 20min clean filter residue, 200g spire bog moss and 100mL water,
Mixed slurry is obtained, mixed slurry, 15g glucose, 5g ammonium tartrate and 800mL water are added in fermentor, it is close at 40 DEG C
Seal ferment 6 days, after fermentation, tunning is obtained, tunning is moved into baking oven, dry 6h, is done at 130 DEG C
Dried object and 100mL methallyl alcohol are added in the three-necked flask with thermometer and reflux unit by dry object, and three mouthfuls are burnt
Bottle moves into oil bath pan, and control oil bath temperature is 140 DEG C, after agitating and heating 20min, then 5mL mass is added dropwise into three-necked flask
Score is 98% sulfuric acid solution, and control drop rate is that 3mL/min is stirred to react 3h after being added dropwise, and reaction terminates, and obtains
Product filters product, obtains filter cake, i.e. modified graphene, finally, according to parts by weight, taking 40 parts of modified graphenes, 12 parts
Prodan, 20 parts of n-vinyl pyrrolidone, 30 parts of itaconic acids, 3 portions of galactomannans, 0.5 part of tert-butyl hydroperoxide,
3 parts of dibutyl tin dilaurates and 70 parts of water, first by modified graphene, n-vinyl pyrrolidone, itaconic acid and tert-butyl mistake
Hydrogen oxide is added in reaction kettle, and after reacting 2h under the conditions of 80 DEG C, it is modified to obtain graphene for cooled to room temperature, discharging
Polymer, then that graphene is polymer-modified, prodan, galactomannans, dibutyl tin dilaurate and water are added
It is stirred 10min into blender, obtains mixture, mixture is transferred in kneader, is mediated under the conditions of 40 DEG C
40min is obtained mediating material, then is put into material is mediated in baking oven, and at 95 DEG C after dry 4h, cooled to room temperature is blocked up
Aqua.
Comparative example: the oil field profile-controlling and plugging agent of Weihai Environmental Protection Technology Co., Ltd production.
Application method: water shutoff agent and water are stirred 8min by 1:20 in mass ratio, obtain water blockoff mixed liquor, then using note
Water blockoff mixed liquor is injected into the water injection well stratum for needing profile control and water plugging by poly- pump, carries out profile control and water plugging.The dosage of water shutoff agent
It is determined according to following formula: Q=3.14R2HФ
Wherein, Q is the total dosage of water shutoff agent, unit m3；
R is treatment radius, unit m；
H is processing thickness, unit m；
Ф is formation porosity, unit %.
Using above-mentioned application method, the oil field profile control of water shutoff agent made from present example 1~3 and comparative example is blocked up respectively
It is 3500m that aqua, which injects well depth, and temperature is 130~180 DEG C, and salinity is in the water injection well in oil fields stratum of 2000~35000g/L
Water blockoff is carried out, and is used for performance and is detected, testing result is as shown in table 1: table 1
In conclusion present invention gained water shutoff agent has preferable water plugging effect, while water shutoff agent heatproof, resistance to salinity
Can be excellent, it after injecting stratum use, is not easy to result in blockage, the rate of oil and gas recovery can be effectively improved, there is preferable prospect of the application.
Claims (1)
1. a kind of water shutoff agent, it is characterised in that:
Raw material including following parts by weight: 30~40 parts of modified graphenes, 8~12 parts of prodans, 15~20 parts of N- ethylene
Base pyrrolidones, 25~30 parts of itaconic acids, 1~3 part of reinforcing agent, 0.3~0.5 part of catalyst, 1~3 part of crosslinking agent and 60~70
Part water；
The modified graphene is prepared by the following steps:
It (1) is that 65% nitric acid solution exists by 20~30g graphene powder, 10~12g sodium metaperiodate and 100~200mL mass fraction
Filtering, washing after 60~90min of reaction, obtain cleaning filter residue under the conditions of 85~95 DEG C；
(2) by after clean filter residue, 100~200g spire bog moss and 80~100mL water mixed grinding, mixed slurry is obtained, it will
Mixed slurry, 10~15g glucose, 3~5g ammonium tartrate and 600~800mL water are sealed by fermentation 5~6 days at 30~40 DEG C,
Tunning is obtained, tunning is dry, obtain dried object；
(3) after mixing dried object, 80~100mL methallyl alcohol under the conditions of 130~140 DEG C, 3~5mL mass is added
Score is 98% sulfuric acid solution, and insulated and stirred filters after reacting 2~3h, obtains filter cake, i.e. modified graphene；The reinforcing agent
For one or both of carboxymethyl cellulose, galactomannans；The catalyst is potassium peroxydisulfate, tert-butyl hydroperoxide
One or both of hydrogen；The crosslinking agent is one or both of diethylenetriamines, dibutyl tin dilaurate；
Specific preparation step are as follows:
(1) it matches in parts by weight, carries out taking raw material；
(2) after modified graphene, n-vinyl pyrrolidone, itaconic acid and catalyst being reacted 1~2h at 70~80 DEG C, then
It is mixed with prodan, reinforcing agent, crosslinking agent and water, obtains mixture, after mixture is mediated at 30~40 DEG C, done
It is dry to get water shutoff agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510351.0A CN107267127B (en) | 2017-06-28 | 2017-06-28 | A kind of water shutoff agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510351.0A CN107267127B (en) | 2017-06-28 | 2017-06-28 | A kind of water shutoff agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107267127A CN107267127A (en) | 2017-10-20 |
| CN107267127B true CN107267127B (en) | 2019-09-10 |
Family
ID=60069750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710510351.0A Active CN107267127B (en) | 2017-06-28 | 2017-06-28 | A kind of water shutoff agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107267127B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109517590B (en) * | 2018-05-29 | 2020-12-01 | 吉林化工学院 | Graphene grafted acrylamide polymer oil displacement agent for pressure swing displacement and preparation method thereof |
| CN112980407B (en) * | 2019-12-02 | 2023-05-30 | 中国石油化工股份有限公司 | Temperature-controllable gel plugging agent and preparation method and application thereof |
| CN112322263B (en) * | 2019-12-17 | 2022-07-05 | 陕西日鑫新材料技术有限公司 | High molecular gel composite plugging agent |
| CN111154468B (en) * | 2020-01-06 | 2022-08-26 | 西南石油大学 | Selective water shutoff agent for oilfield water shutoff |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329599A (en) * | 2011-08-19 | 2012-01-25 | 西南石油大学 | Novel selective water shutoff agent for oil well water shutoff |
| CN106433593A (en) * | 2016-08-26 | 2017-02-22 | 河南正佳能源环保股份有限公司 | Preparation method for graphene nano oil displacement agent |
| CN106800921A (en) * | 2016-12-02 | 2017-06-06 | 长江大学 | Wide temperature high salinity adjusts stifled all-round frozen glue |
-
2017
- 2017-06-28 CN CN201710510351.0A patent/CN107267127B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329599A (en) * | 2011-08-19 | 2012-01-25 | 西南石油大学 | Novel selective water shutoff agent for oil well water shutoff |
| CN102329599B (en) * | 2011-08-19 | 2012-09-12 | 西南石油大学 | Novel selective water shutoff agent for oil well water shutoff |
| CN106433593A (en) * | 2016-08-26 | 2017-02-22 | 河南正佳能源环保股份有限公司 | Preparation method for graphene nano oil displacement agent |
| CN106800921A (en) * | 2016-12-02 | 2017-06-06 | 长江大学 | Wide temperature high salinity adjusts stifled all-round frozen glue |
Non-Patent Citations (1)
| Title |
|---|
| 石墨烯在油气田开发工程领域应用前景;付亚荣;《工程研究-跨学科视野中的工程》;20170425(第02期);199-204 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107267127A (en) | 2017-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107267127B (en) | A kind of water shutoff agent and preparation method thereof | |
| CN104119845B (en) | Filtrate loss reducer for high-temperature-resistant oil field drilling fluid and preparation method thereof | |
| CN100344723C (en) | Comprehensive performace regulator for well cementing cement slurry and its prepn | |
| CN102433108B (en) | Temperature-resistance salt-resistance filtrate reducer for drilling fluid and preparation method thereof | |
| CN103058566B (en) | Autogenous curing agent for cement-based material and preparation method thereof | |
| CN108949130A (en) | A kind of preparation method of selective water shutoff agent | |
| CN105368423B (en) | One kind is recovered the oil and uses Chrome-free compound resin gel-like profile control agent and preparation method and purposes | |
| CN104327813A (en) | Cement-dispersing retarder for high-temperature-resistant oil well and preparation method of retarder | |
| CN114230293B (en) | Inorganic-organic composite grouting water-stop material, preparation method and application thereof | |
| CN103725269B (en) | A kind of high temperature resistant drilling fluids humic acid type fluid loss agent and preparation method thereof | |
| CN104861953A (en) | Oil field fracture temporary plugging agent and preparation method thereof | |
| CN104388066A (en) | Preparation method of plugging agent for drilling fluid | |
| CN108913107A (en) | A kind of preparation method of high temperature resistant long acting fluid loss additive | |
| CN104449655B (en) | Fracture-cavern type oil reservoir filtrate reducer composition and fracture-cavern type oil reservoir filtrate reducing method | |
| CN108531153A (en) | A kind of high temperature resistant Petropols dispersion blocking agent and the preparation method and application thereof | |
| CN1837574A (en) | Water-plugging profile-modifying channel-blocking technology employing heat-sensitive water-soluble gel | |
| CN108977181A (en) | Oil base drilling fluid sealing agent and preparation method | |
| CN106433590A (en) | Casing damage leakage well high-efficiency phenolic resin water plugging agent and application thereof | |
| CN103421477B (en) | Method for relieving near-wellbore area gas condensate and particle obstruction | |
| CN105085839A (en) | Preparation method of water soluble AM-AA-modified nanometer SiO2 functional monomer terpolymer oil displacement agent | |
| CN106167695B (en) | Oil well chemical plugging agent | |
| CN101368090A (en) | Process for preparing silicon-fluorine high temperature resistant thinner dry powder for drilling fluids | |
| CN107033864A (en) | A kind of preparation method of sealing agent | |
| CN109401737A (en) | Drilling fluid solid wall agent modified resin polymer and preparation method thereof | |
| CN113045259B (en) | Hydrophobic and breathable cement slurry adopted in natural gas well cementing 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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190627 Address after: 213000 35 North Zhijie street, Zhong Lou District, Changzhou, Jiangsu Applicant after: Zou Feng Address before: 213102 No. 128 Hanjiang Road, Xinbei District, Changzhou, Jiangsu Applicant before: Changzhou force Digital Technology Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190815 Address after: 257300 grand economic development zone, Guangrao County, Shandong, Dongying Applicant after: Shandong Kexing Chemical Co., Ltd. Address before: 213000 No. 35 straight North Street, bell tower, Jiangsu, Changzhou Applicant before: Zou Feng |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |