CN109251738A - Sepiolite strengthens hydrophobic associated polymer Gel profile control agent and preparation method thereof - Google Patents
Sepiolite strengthens hydrophobic associated polymer Gel profile control agent and preparation method thereof Download PDFInfo
- Publication number
- CN109251738A CN109251738A CN201811253274.6A CN201811253274A CN109251738A CN 109251738 A CN109251738 A CN 109251738A CN 201811253274 A CN201811253274 A CN 201811253274A CN 109251738 A CN109251738 A CN 109251738A
- Authority
- CN
- China
- Prior art keywords
- profile control
- control agent
- associated polymer
- sepiolite
- hydrophobic associated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/5086—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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)
- Chemical Kinetics & Catalysis (AREA)
- Sealing Material Composition (AREA)
Abstract
The present invention relates to a kind of sepiolites to strengthen hydrophobic associated polymer Gel profile control agent, wherein based on component (1)-(4) total amount of 100 mass %, include following components: (1) hydrophobic associated polymer, content is 0.1-1%, (2) combinational organic croslinkers, content 0.08-1%, (3) sepiolite powder, content is 1-15%, and (4) surplus is water.The invention further relates to the preparation methods that the sepiolite strengthens hydrophobic associated polymer Gel profile control agent.
Description
Technical field
The present invention relates to a kind of sepiolites to strengthen hydrophobic associated polymer Gel profile control agent and preparation method thereof.
Background technique
Old filed, due to constantly washing away for injection water, can generate a large amount of after the waterflooding extraction of decades in oil reservoir
The water flows predominant pathway such as macropore or microcrack.Oil well can be charged into too early along the flowing of water flow predominant pathway by being subsequently implanted into water, this is not
But it will cause injection ripples and range reduce, can also make water ratio in oil well increase too fast, finally reduce oil recovery factor.Water filling
Well profile control and oilwell water shutoff are one of the effective ways for improving floood conformance effect.The effect of profile control and water plugging depends not only upon injection
Technique also depends primarily on the performance of plugging agent.With the profile control and water plugging job task amount on oil field high salinity stratum in recent years
Increase year by year, high-intensitive resistance to plugging agent with high salt becomes one of whether successful key of operation.
Gel-like blocking agent is one of common plugging agent type in oil field, is most widely used that with partial hydrolysis polyacrylamide
Amine (HPAM) is polymer and the gel rubber system that is formed using metal ion or phenolic aldehyde as crosslinking agent.But due to the salt tolerant of HPAM
Performance is poor, bad as using effect of the gel rubber system of polymer in high salinity block using HPAM.Recent domestic
Scholar does a lot of work for the research and development of the plugging agent of resistance to high salinity.Application No. is 201510004908.4 Chinese inventions
A kind of gel rubber system of patent disclosure, is compounded with acrylamide (AM) monomer with substances such as esters, alcohols, in the work of initiator
With lower preparation can high temperature resistant, high salinity condition gel rubber system, but the gel rubber system complicated component and under normal temperature conditions
It is not easy to prepare.In addition, particulate species plugging agent is also currently used plugging agent type.Application No. is in 201410662306.3
State's patent of invention provides the organic granular blocking agent that a kind of main component is organic phenol, formaldehyde, furfural etc.；Application No. is
201310340097.6 Chinese invention patent provides a kind of copolymerization microsphere, and salt resistant character is preferable, but synthesis technology is complicated
And higher cost, using economic benefit not as good as gel-type blocking agent.
Therefore, it is still necessary to new plugging agent is researched and developed, effectively to expand its scope of application in oil field.
Summary of the invention
The present invention provides a kind of sepiolites to strengthen hydrophobic associated polymer Gel profile control agent, wherein being based on 100 mass %
Component (1)-(4) total amount meter, include following components:
(1) hydrophobic associated polymer, content 0.1-1%, preferably 0.15-0.60%, more preferable 0.15-0.30%,
(2) combinational organic croslinkers, content 0.08-1%, preferably 0.1-0.60%, more preferable 0.15-0.30%,
(3) sepiolite powder, content 1-15%, preferably 1.5-8%, more preferable 2-5%；
(4) surplus is water.
Another aspect of the present invention provides the preparation side that the sepiolite strengthens hydrophobic associated polymer Gel profile control agent
Method comprising following steps:
(1) aqueous solution of the hydrophobic associated polymer of mass concentration needed for preparing；
(2) combinational organic croslinkers are added and stir evenly；
(3) sepiolite powder is add to the above mixed solution to stir evenly and strengthens hydrophobic association polymerization to get sepiolite
Object Gel profile control agent.
The present invention includes hydrophobic associated polymer oil displacement agent and polyethyleneimine amine crosslinker, and salt resistant character is excellent, specifically
Hydrophobic associated polymer is selected to be used as polymer, selection Organic Chromium, organic resin, two or more conducts in polyethyleneimine
Combinational organic croslinkers are generated using the sepiolite powder of average particle size 100-500nm as hardening agent with resistance to high salt and high-strength
The sepiolite of degree strengthens hydrophobic associated polymer Gel profile control agent.
The beneficial effects are mainly reflected as follows following three aspects:
(1) sepiolite of the invention strengthen hydrophobic associated polymer Gel profile control agent can be with high salt, such as sodium ion is dense
It spends under conditions of 50000mg/L or more, calcium ion concentration 1500mg/L or more from plastic is viscosified, gel apparent viscosity is big after plastic
In 15000mPas.
(2) sepiolite of the invention is strengthened hydrophobic associated polymer Gel profile control agent performance under high salt conditions and is stablized, and 60
Obvious dehydration is had no in it.
(3) sepiolite of the invention strengthens hydrophobic associated polymer Gel profile control agent to the sealing ratiod of extra-high permeability rock core
Greater than 98%, subsequent waterflooding breakthrough pressure gradient is higher than 10MPa/m, and it is more than 200 days that validity period is blocked under the conditions of 60 DEG C.
Detailed description of the invention
Sepiolite in Fig. 1 embodiment of the present invention 1 strengthens the apparent viscosity of hydrophobic associated polymer Gel profile control agent at any time
Between variation relation figure；
Sepiolite in Fig. 2 embodiment of the present invention 2 strengthens the apparent viscosity of hydrophobic associated polymer Gel profile control agent at any time
Between variation relation figure；
Sepiolite in Fig. 3 embodiment of the present invention 3 strengthens the apparent viscosity of hydrophobic associated polymer Gel profile control agent at any time
Between variation relation figure.
Specific embodiment
The present invention provides a kind of sepiolites to strengthen hydrophobic associated polymer Gel profile control agent, wherein being based on 100 mass %
Component (1)-(4) total amount meter, include following components:
(1) hydrophobic associated polymer, content 0.1-1%, preferably 0.15-0.60%, more preferable 0.15-0.30%,
(2) combinational organic croslinkers, content 0.08-1%, preferably 0.1-0.60%, more preferable 0.15-0.30%,
(3) sepiolite powder, content 1-15%, preferably 1.5-8%, more preferable 2-5%；
(4) surplus is water.
In a preferred embodiment, hydrophobic associated polymer is allyl ammonium type hydrophobic associated polymer, is
The terpolymer of acrylamide, acrylic acid and the pungent ammonium of allyl dimethyl base, relative molecular mass are 11,000,000 or more, more preferably
12000000 or more, such as 13,000,000-1,800 ten thousand,；Degree of hydrolysis 20-30%, preferably 23-27%；Hydrophobic association group content 1.5-
3%, preferably 1.8-2.5%..
In a preferred embodiment, crosslinking agent is organic chrome cross linker, organic resin crosslinking agent, polyethyleneimine
The combinational organic croslinkers that two or more in crosslinking agent form.
In a preferred embodiment, the organic chrome cross linker in combinational organic croslinkers, organic resin crosslinking agent,
Polyethyleneimine amine crosslinker, equal proportion uses each other.
In a preferred embodiment, the weight average molecular weight 300-3000 of polyethyleneimine amine crosslinker, preferably 1000-
2000；And solid content 30%-50%；Organic chrome cross linker is Chromic lactate or acetic acid chromium cross linker；Organic resin crosslinking agent is phenol
Urea formaldehyde crosslinking agent.Polyethyleneimine amine crosslinker, phenolic resin crosslinking agent and the Chromic lactate or acetic acid chromium cross linker be
Commercial goods well known in the art.
In a preferred embodiment, the average grain diameter of the sepiolite powder is 100-500nm, preferably 200-
400nm。
The present invention also provides the preparation method that the sepiolite strengthens hydrophobic associated polymer Gel profile control agent, packets
Include following steps:
(1) aqueous solution of the hydrophobic associated polymer of mass concentration needed for preparing；
(2) combinational organic croslinkers are added and stir evenly；
(3) sepiolite powder is add to the above mixed solution to stir evenly and strengthens hydrophobic association polymerization to get sepiolite
Object Gel profile control agent.
In a preferred embodiment, prepare water used in the aqueous solution of hydrophobic associated polymer be tap water,
The available water resources such as layer water, oil extraction waste water.Blocking agent of the invention is resistance to high salt, can be made using the oil extraction waste water of high salinity
For raw material.
In the present invention, if without opposite explanation, operation is carried out in condition of normal pressure.
In the present invention, unless otherwise stated, otherwise all numbers, percentage is in mass.
In the present invention, substance used is known substance, commercially available or synthesized by known method.
In the present invention, equipment therefor or equipment are conventional equipment known to the field or equipment, commercially available.
Reservoir core plugging performance test of the invention involved in following example 1-3, the rock core used are fill out sand tube rock core, are surveyed
Try is suddenly equal are as follows:
(1) being filled to diameter D respectively using three kinds of 40-60 mesh, 60-80 mesh, 100-120 mesh quartz sands is 2.5cm, length
L is that the fill out sand tube rock core with different permeabilities is made in the fill out sand tube of 30cm；
(2) salt water of Na ion concentration 50000mg/L or more, calcium ion concentration 1500mg/L or more are saturated after vacuumizing,
The pore volume V and initial water for measuring each fill out sand tube rock core survey permeability K0；
(3) Gel profile control agent solution of the invention is injected into each rock core, the rock core pore-body that injection rate is 0.4 times
Product；
(4) basket both ends are sealed, is placed in 60 DEG C of thermostatic drying chambers to its plastic, time of repose is Gel profile control agent
The gelation time of solution；
(5) the salt water progress displacement of rock core opposite direction injection Na ion concentration 50000mg/L, calcium ion concentration 1500mg/L
Experiment, measures breakthrough pressure PIt breaks throughWith subsequent steady injection pressure PSteadily；
(6) breakthrough pressure gradient dP/dL (MPa/m) is calculated according to formula (1), water after blocking is calculated according to Darcy formula and is surveyed
Permeability K1, and then reservoir core plugging rate F (%) is calculated according to formula (2).
DP/dL=PIt breaks through/L (1)
Embodiment 1
1) composition of Gel profile control agent 1
Mass percent shared by 1 each component of Gel profile control agent is as follows based on 100 mass % of Gel profile control agent 1: to dredge
Water association polymer 0.15%, Chromic lactate 0.10%, phenolic resin 0.10%, the sepiolite 5% of 300nm partial size, surplus is sodium
The salt water of ion concentration 50000mg/L, calcium ion concentration 1500mg/L.
2) Gel profile control agent 1 from thickening property
It is shown in FIG. 1 when being different time of repose, in 60 DEG C and shear rate 7.34s-1Under the conditions of the gel tune that measures
The apparent viscosity of blocking agent.Gel viscosity starts significantly to increase after standing 10h, shows to start gel component cross-linking reaction rate at this time
Accelerate；Gel viscosity amplification reduces after standing 30h, shows that gel component reaction at this time is close and finishes, gelation time 30h, this
When gel apparent viscosity reach 15800mPas.
3) the reservoir core plugging performance of Gel profile control agent 1
It is sealing characteristics parameter of the Gel profile control agent 1 to three kinds of different permeability fill out sand tube rock cores shown in table 1.
The reservoir core plugging performance parameter of 1 Gel profile control agent 1 of table
| Number | 1 | 2 | 3 |
| Core permeability, μm2 | 6.23 | 2.53 | 0.98 |
| Breakthrough pressure gradient, MPa/m | 10.42 | 15.23 | 17.56 |
| Reservoir core plugging rate, % | 98.53 | 99.50 | 99.78 |
As seen from Table 1, the breakthrough pressure gradient of Gel profile control agent 1 is higher than 10MPa/m, fills out to three kinds of permeability ranks
The sealing ratiod of sandpipe rock core 98% or more, has preferable reservoir core plugging performance.
4) stability of Gel profile control agent 1
It is respectively charged into 6 vials and seals after preparation 1 solution of fresh gel plugging agent, the solution body in each vial
Product is 100mL；Vial is placed in 60 DEG C of constant temperature oven, is taken out in specific time, in 60 DEG C and shear rate
7.34s-1Under the conditions of test Gel profile control agent apparent viscosity.When being that Gel profile control agent 1 stands different time shown in table 2
Viscosity data.
The stability parameter of 2 Gel profile control agent 1 of table
| Stand number of days, d | 30 | 60 | 90 | 120 | 150 | 200 |
| Apparent viscosity, mPas | 15100 | 14400 | 13700 | 13200 | 12500 | 11900 |
As seen from Table 2, in standing 200 days, the apparent viscosity of Gel profile control agent 1 is higher than 11000mPas, viscosity loss
Rate is lower than 25%, shows that Gel profile control agent 1 has preferable stability.
Embodiment 2
1) composition of Gel profile control agent 2
Mass percent shared by 2 each component of Gel profile control agent is as follows based on 100 mass % of Gel profile control agent 2: to dredge
Water association polymer 0.25%, Chromic lactate 0.10%, phenolic resin 0.10%, polyethyleneimine 0.1%, the sea of 300nm partial size
Afrodite 2%, surplus are the salt water of Na ion concentration 50000mg/L, calcium ion concentration 1500mg/L.
2) Gel profile control agent 2 from thickening property
It is shown in Fig. 2 when being different time of repose, in 60 DEG C and shear rate 7.34s-1Under the conditions of the gel tune that measures
The apparent viscosity of blocking agent.Gel viscosity starts significantly to increase after standing 7h, shows to start gel component cross-linking reaction rate at this time
Accelerate；Gel viscosity amplification reduces after standing for 24 hours, show gel component reaction at this time close to finishing, gelation time be for 24 hours, this
When gel apparent viscosity reach 16600mPas.
3) the reservoir core plugging performance of Gel profile control agent 2
It is sealing characteristics parameter of the Gel profile control agent 2 to three kinds of different permeability fill out sand tube rock cores shown in table 3.
The reservoir core plugging performance parameter of 3 Gel profile control agent 2 of table
| Number | 1 | 2 | 3 |
| Core permeability, μm2 | 5.89 | 2.12 | 0.75 |
| Breakthrough pressure gradient, MPa/m | 12.45 | 17.25 | 21.36 |
| Reservoir core plugging rate, % | 98.95 | 99.40 | 99.85 |
As seen from Table 3, the breakthrough pressure gradient of Gel profile control agent 2 is higher than 10MPa/m, fills out to three kinds of permeability ranks
The sealing ratiod of sandpipe rock core 98% or more, has preferable reservoir core plugging performance.
4) stability of Gel profile control agent 2
It is respectively charged into 6 vials and seals after preparation 2 solution of fresh gel plugging agent, the solution body in each vial
Product is 100mL；Vial is placed in 60 DEG C of constant temperature oven, is taken out in specific time, in 60 DEG C and shear rate
7.34s-1Under the conditions of test Gel profile control agent apparent viscosity.When being that Gel profile control agent 2 stands different time shown in table 4
Viscosity data.
The stability parameter of 4 Gel profile control agent 2 of table
| Stand number of days, d | 30 | 60 | 90 | 120 | 150 | 200 |
| Apparent viscosity, mPas | 15900 | 15100 | 14600 | 14300 | 13800 | 13200 |
As seen from Table 4, in standing 200 days, the apparent viscosity of Gel profile control agent 2 is higher than 13000mPas, viscosity loss
Rate is lower than 25%, shows that Gel profile control agent 2 has preferable stability.
Embodiment 3
1) composition of Gel profile control agent 3
Mass percent shared by 3 each component of Gel profile control agent is as follows based on 100 mass % of Gel profile control agent 3: to dredge
Water association polymer 0.30%, phenolic resin 0.15%, polyethyleneimine 0.15%, the sepiolite 4% of 350nm partial size, surplus
For the salt water of Na ion concentration 50000mg/L, calcium ion concentration 1500mg/L.
2) Gel profile control agent 3 from thickening property
It is shown in Fig. 3 when being different time of repose, in 60 DEG C and shear rate 7.34s-1Under the conditions of the gel tune that measures
The apparent viscosity of blocking agent.Gel viscosity starts significantly to increase after standing 8h, shows to start gel component cross-linking reaction rate at this time
Accelerate；Gel viscosity amplification reduces after standing for 24 hours, show gel component reaction at this time close to finishing, gelation time be for 24 hours, this
When gel apparent viscosity reach 17400mPas.
3) the reservoir core plugging performance of Gel profile control agent 3
It is sealing characteristics parameter of the Gel profile control agent 3 to three kinds of different permeability fill out sand tube rock cores shown in table 5.
The reservoir core plugging performance parameter of 5 Gel profile control agent 3 of table
| Number | 1 | 2 | 3 |
| Core permeability, μm2 | 6.55 | 2.98 | 1.02 |
| Breakthrough pressure gradient, MPa/m | 11.33 | 16.85 | 20.56 |
| Reservoir core plugging rate, % | 98.99 | 99.23 | 99.79 |
As seen from Table 5, the breakthrough pressure gradient of Gel profile control agent 3 is higher than 10MPa/m, fills out to three kinds of permeability ranks
The sealing ratiod of sandpipe rock core 98% or more, has preferable reservoir core plugging performance.
4) stability of Gel profile control agent 3
It is respectively charged into 6 vials and seals after preparation 3 solution of fresh gel plugging agent, the solution body in each vial
Product is 100mL；Vial is placed in 60 DEG C of constant temperature oven, is taken out in specific time, in 60 DEG C and shear rate
7.34s-1Under the conditions of test Gel profile control agent apparent viscosity.When being that Gel profile control agent 3 stands different time shown in table 4
Viscosity data.
The stability parameter of 6 Gel profile control agent 3 of table
| Stand number of days, d | 30 | 60 | 90 | 120 | 150 | 200 |
| Apparent viscosity, mPas | 16800 | 16400 | 15800 | 15300 | 15000 | 14200 |
As seen from Table 6, in standing 200 days, the apparent viscosity of Gel profile control agent 3 is higher than 14000mPas, viscosity loss
Rate is lower than 25%, shows that Gel profile control agent 3 has preferable stability.
By test above it is found that sepiolite of the invention strengthen hydrophobic associated polymer Gel profile control agent can with resistance to high salt and
High intensity, stability is good, sealing characteristics is good.
In practical applications, sepiolite of the invention reinforcing hydrophobic associated polymer Gel profile control agent can be used to block super
High permeability water flow predominant pathway, it can also be used to block natural and artificial water logging fracture spaces.In addition, sepiolite reinforcing is hydrophobic
Association polymer Gel profile control agent heat-resistant salt-resistant is functional, can be in salinity 0 up to 50000mg/L or more, temperature 30-
Plastic in 100 DEG C of stratum, long-term plugging effect are excessively preferable.In practical application, it is configured in proportion in injection stratum,
It forms gel under the conditions of Di Zang, plays its excellent tune and blocks up effect.
Claims (8)
1. a kind of sepiolite strengthens hydrophobic associated polymer Gel profile control agent, wherein component (1)-(4) based on 100 mass %
Total amount meter includes following components:
(1) hydrophobic associated polymer, content 0.1-1%, preferably 0.15-0.60%, more preferable 0.15-0.30%,
(2) combinational organic croslinkers, content 0.08-1%, preferably 0.1-0.60%, more preferable 0.15-0.30%,
(3) sepiolite powder, content 1-15%, preferably 1.5-8%, more preferable 2-5%；
(4) surplus is water.
2. sepiolite according to claim 1 strengthens hydrophobic associated polymer Gel profile control agent, wherein hydrophobic association polymerize
Object is allyl ammonium type hydrophobic associated polymer, is the ternary polymerization of acrylamide, acrylic acid and the pungent ammonium of allyl dimethyl base
Object, relative molecular mass are 11,000,000 or more, more preferable 12,000,000 or more, such as 13,000,000-1,800 ten thousand,；Degree of hydrolysis 20-
30%, preferably 23-27%；Hydrophobic association group content 1.5-3%, preferably 1.8-2.5%.
3. sepiolite according to claim 1 strengthens hydrophobic associated polymer Gel profile control agent, wherein crosslinking agent is organic
Chromium cross linker, organic resin crosslinking agent, in polyethyleneimine amine crosslinker two or more compositions combinational organic croslinkers.
4. sepiolite according to claim 3 strengthens hydrophobic associated polymer Gel profile control agent, wherein organic composite is crosslinked
Organic chrome cross linker, organic resin crosslinking agent, polyethyleneimine amine crosslinker in agent, equal proportion uses each other.
5. sepiolite according to claim 3 strengthens hydrophobic associated polymer Gel profile control agent, wherein polyethyleneimine is handed over
Join the weight average molecular weight 300-3000, preferably 1000-2000 of agent；And solid content 30%-50%；Organic chrome cross linker is Chromic lactate
Or acetic acid chromium cross linker；Organic resin crosslinking agent is phenolic resin crosslinking agent.
6. sepiolite according to claim 1 strengthens hydrophobic associated polymer Gel profile control agent, the sepiolite powder is put down
Equal partial size is 100-500nm, preferably 200-400nm.
7. the preparation side that sepiolite according to claim 1-6 strengthens hydrophobic associated polymer Gel profile control agent
Method comprising following steps:
(1) aqueous solution of the hydrophobic associated polymer of mass concentration needed for preparing；
(2) combinational organic croslinkers are added and stir evenly；
(3) sepiolite powder is add to the above mixed solution to stir evenly and is coagulated to get sepiolite reinforcing hydrophobic associated polymer
Glue plugging agent.
8. preparation method according to claim 7 wherein in step (1), prepares the aqueous solution institute of hydrophobic associated polymer
Water is tap water, water flooding, oil extraction waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811253274.6A CN109251738A (en) | 2018-10-25 | 2018-10-25 | Sepiolite strengthens hydrophobic associated polymer Gel profile control agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811253274.6A CN109251738A (en) | 2018-10-25 | 2018-10-25 | Sepiolite strengthens hydrophobic associated polymer Gel profile control agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109251738A true CN109251738A (en) | 2019-01-22 |
Family
ID=65046570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811253274.6A Pending CN109251738A (en) | 2018-10-25 | 2018-10-25 | Sepiolite strengthens hydrophobic associated polymer Gel profile control agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109251738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442345A (en) * | 2019-08-27 | 2021-03-05 | 中国石油天然气股份有限公司 | Anti-dilution controlled hydrogel system and preparation method and application thereof |
| CN115353117A (en) * | 2022-10-20 | 2022-11-18 | 四川大学 | Super-hydrophobic sand grain and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130025863A1 (en) * | 2010-11-30 | 2013-01-31 | Schlumberger Technology Corporation | Methods for Servicing Subterranean Wells |
| CN104531115A (en) * | 2014-12-30 | 2015-04-22 | 中国石油天然气股份有限公司 | Temporary plugging agent for horizontal well water control, and preparation method and application thereof |
| CN104987857A (en) * | 2015-06-25 | 2015-10-21 | 中国石油天然气股份有限公司 | High-salinity-resistant self-tackifying hydrophobically associating polymer gel plugging agent and preparing method thereof |
| CN106867488A (en) * | 2017-03-28 | 2017-06-20 | 四川光亚聚合物化工有限公司 | One kind physical crosslinking gel-like profile control and water plugging system and its application |
-
2018
- 2018-10-25 CN CN201811253274.6A patent/CN109251738A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130025863A1 (en) * | 2010-11-30 | 2013-01-31 | Schlumberger Technology Corporation | Methods for Servicing Subterranean Wells |
| CN104531115A (en) * | 2014-12-30 | 2015-04-22 | 中国石油天然气股份有限公司 | Temporary plugging agent for horizontal well water control, and preparation method and application thereof |
| CN104987857A (en) * | 2015-06-25 | 2015-10-21 | 中国石油天然气股份有限公司 | High-salinity-resistant self-tackifying hydrophobically associating polymer gel plugging agent and preparing method thereof |
| CN106867488A (en) * | 2017-03-28 | 2017-06-20 | 四川光亚聚合物化工有限公司 | One kind physical crosslinking gel-like profile control and water plugging system and its application |
Non-Patent Citations (1)
| Title |
|---|
| 赵福麟: "《油田化学》", 30 September 2010, 中国石油大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442345A (en) * | 2019-08-27 | 2021-03-05 | 中国石油天然气股份有限公司 | Anti-dilution controlled hydrogel system and preparation method and application thereof |
| CN112442345B (en) * | 2019-08-27 | 2023-07-25 | 中国石油天然气股份有限公司 | Anti-dilution hydrogel control system and preparation method and application thereof |
| CN115353117A (en) * | 2022-10-20 | 2022-11-18 | 四川大学 | Super-hydrophobic sand grain and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11015109B2 (en) | Particulate profile control agent self-adaptive to size of formation pore throat and preparation method thereof | |
| CN104974724B (en) | Gelling down hole sealing agent and its preparation method suitable for high temperature LOW PERMEABILITY RESERVOIR with high salt | |
| RU2630543C9 (en) | Formation of cross-linking in the swellable polymer with pei | |
| CN102816558B (en) | Plugging agent for deep profile control and water plugging and preparation method thereof | |
| CN103555305B (en) | Hyperbranched slow-swelling profile control particles and preparation method thereof | |
| CN102585093B (en) | Pre-crosslinked gel granulate for profile control and polymer flooding as well as preparation method and application of pre-crosslinked gel granulates | |
| CN106947450B (en) | Deep profile control and flooding agent with low initial viscosity and preparation method thereof | |
| CN106188403B (en) | A kind of anti-CO of high temperature and high salt oil deposit2Has channeling blocking agent and preparation method thereof | |
| CN105062444A (en) | High temperature swellable granule plugging agent and preparation method thereof | |
| CN104371682A (en) | AA-AM-AMPS-DAC (acrylic acid-acrylamide-2-acrylamido-methylpropanesulfonic acid-acryloyloxyethyl ammonium chloride) polymer gel plugging agent and synthesis method thereof | |
| CN102558469B (en) | Cross-linking agent for profile control and oil displacement for high-temperature oil reservoir, as well as preparation method and application for same | |
| CN104357032A (en) | High-temperature resistant secondary cross-linked gel profile control agent and preparation method thereof | |
| CN104371699A (en) | Organic aluminum-zirconium crosslinking agent and preparation method thereof, and low-molecular polymer fracturing fluid | |
| CN104612639A (en) | Process of deep profile control over low-permeability oil reservoir | |
| CN104987857A (en) | High-salinity-resistant self-tackifying hydrophobically associating polymer gel plugging agent and preparing method thereof | |
| CN102965093A (en) | Composite crosslinking deep profile control agent for oil reservoir deep profile control and preparation method thereof | |
| CN105112034B (en) | A kind of high-temperature-resgelant gelant diversion agent and the preparation method and application thereof | |
| CN109251738A (en) | Sepiolite strengthens hydrophobic associated polymer Gel profile control agent and preparation method thereof | |
| CN105820804B (en) | The oil deposit deep part fluid diversion chemical agent and its preparation method of resistance to high salinity and application | |
| CN105820345A (en) | Steam-displacement ultrahigh-temperature channeling sealing agent, and preparation method and application thereof | |
| RU2279540C1 (en) | Method for non-uniform oil pool development control | |
| CN105860947B (en) | A kind of profile control agent and preparation method thereof of slow degradation high temperature resistant high salinity | |
| CN106916249A (en) | A kind of blocking agent suitable for low temperature high salinity reservoir water plugging and profile controlling | |
| RU2722488C1 (en) | Method for development of flooded oil reservoir with non-uniform permeability | |
| CN109679603B (en) | Composite ionic polymer gel 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190122 |