CN104861948A - Composition used for increasing polymer solution viscosity, and applications thereof - Google Patents
Composition used for increasing polymer solution viscosity, and applications thereof Download PDFInfo
- Publication number
- CN104861948A CN104861948A CN201410060433.6A CN201410060433A CN104861948A CN 104861948 A CN104861948 A CN 104861948A CN 201410060433 A CN201410060433 A CN 201410060433A CN 104861948 A CN104861948 A CN 104861948A
- Authority
- CN
- China
- Prior art keywords
- composition
- content
- hydroxy ethylidene
- diphosphonic acid
- citrate
- 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.)
- Granted
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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/588—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/885—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)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a composition used for increasing polymer solution viscosity. The composition comprises a citrate, an edentate, a (1-hydroxyethylidene)bis-phosphonic acid tetrasodium salt, and a poly aspartate. The composition is capable of increasing polymer solution viscosity substantially under high calcium and magnesium conditions, improving water-oil fluidity further, reducing viscous fingering of a displacing phase, increasing conformance efficiency, and improving oil displacement efficiency; and application prospect of the composition in development of high calcium/magnesium reservoirs is promising.
Description
Technical field
The present invention relates to a kind of composition improving soltion viscosity, specifically, the present invention relates to and a kind ofly improve the composition of polymer solution viscosity and the application in the displacement of reservoir oil of high contents of calcium and magnesium reservoir polymer thereof.
Background technology
At present, technique of polymer flooding has become maturing field Tapping Residual Oil, and two classes, three class oil reservoirs improve one of important redundancy technique of recovery ratio.This technology aqueous solutions of polymers is oil-displacing agent, to increase the viscosity injecting water, improves its sweep efficiency, thus reaches the object improving oil recovery factor.As everyone knows, the viscosity of the polymers soln of preparation is higher, and its sweep area is larger, and oil displacement efficiency is also just unreasonable to be thought.The virtual viscosity of polymer flooding liquid can not reach requirement, and polymer flooding liquid can not well play the effect improving mobility ratio, thus reduces the result of use of polymer flooding.But under high contents of calcium and magnesium condition, the polymer solution viscosity for technique of polymer flooding can reduce, and can not reach desirable range of viscosities, therefore cannot meet the requirement of the high rigidity reservoir polymer displacement of reservoir oil.
Effectively improving the chemical formulation of polymer solution viscosity under finding high contents of calcium and magnesium condition, is the key that current polymer flooding is applied in high rigidity oil reservoir.
Summary of the invention
In view of above the deficiencies in the prior art, the object of the present invention is to provide a kind of composition improving polymer solution viscosity, it can effectively improve polymer flooding development effectiveness.
In order to realize object of the present invention, the invention provides a kind of composition improving polymer solution viscosity, it is containing, for example lower component: Citrate trianion, edetate, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt and polyaspartic acid salts.
According to composition provided by the invention, the viscosity of polymkeric substance can be increased substantially, even if also can polymer viscosity be improved under high contents of calcium and magnesium condition, make the polymers soln obtained can be used in the displacement of reservoir oil of high rigidity oil reservoir.According to composition of the present invention, there is lower production cost, achieve the balance of cost-raising viscosity effect, achieve excellent net effect.
According to a specific embodiment of composition of the present invention, described Citrate trianion is alkali metal citrate, is preferably selected from one or both in Trisodium Citrate and Tripotassium Citrate, more preferably Trisodium Citrate.
According to a specific embodiment of composition of the present invention, described edetate is basic metal edetate, is preferably selected from one or both in sodium ethylene diamine tetracetate and ethylenediamine tetraacetic acid (EDTA) potassium, more preferably sodium ethylene diamine tetracetate.
According to a specific embodiment of composition of the present invention, described 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt is basic metal 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt, be preferably selected from 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium and 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid potassium one or both, more preferably 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium.
According to a specific embodiment of composition of the present invention, described polyaspartic acid salts is alkali metal polysilicate aspartate, and the polymerization degree of its molecule is less than 50.In a specific embodiment, polyaspartic acid salts be preferably selected from poly (sodium aspartate) and poly-aspartic potassium one or both, more preferably poly (sodium aspartate).
According to a specific embodiment of composition of the present invention, in described composition, based on the gross weight of composition, the content of Citrate trianion is 80 ~ 95wt%, the content of edetate is 4 ~ 19wt%, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt content for being 0.1 ~ 0.5wt%, the content of polyaspartic acid salts is 0.1 ~ 0.5wt%.
According to another specific embodiment of composition of the present invention, in described composition, based on the gross weight of composition, the content of Citrate trianion is 83.0 ~ 91wt%, the content of edetate is 9 ~ 17wt%, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt content for being 0.1 ~ 0.2wt%, the content of polyaspartic acid salts is 0.2% ~ 0.3wt%.
In the present invention, the polymkeric substance in described polymers soln is polymkeric substance conventional in polymer displacement of reservoir oil tech, includes but not limited to following a few base polymer: xanthocyte gum (natural), polyacrylamide, comb shaped antisalt polymer, hydrophobic associated polymer etc.
According to another aspect of the present invention, the application of above-mentioned composition in polymer flooding is provided.In a concrete example, in use, take Citrate trianion, edetate, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt and polyaspartic acid salts successively according to mass ratio, the slow stirring and dissolving that then adds water, dispersion can obtain the solution of described composition.By above-mentioned solution and mixed with polymers, the viscosity of polymers soln can be significantly improved under high salinity, high rigidity condition, thus can well play the effect improving mobility ratio, thus improve the result of use of polymer flooding, improve recovery ratio.
According to another aspect of the present invention, the application of above-mentioned composition in the displacement of reservoir oil of high contents of calcium and magnesium reservoir polymer is additionally provided.Use the composition described in the present invention, the viscosity of the polymers soln in polymer displacement of reservoir oil tech can be provided, for the exploitation that high magnesium calcicoater is hidden, the result of use of polymer flooding can be improved, improve recovery ratio.
The present invention compared with prior art has obvious advantage and beneficial effect.A kind of composition improving polymer solution viscosity provided by the invention, its rational proportion by Citrate trianion, ethylenediamine tetraacetic acid (EDTA) disalt, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt and polyaspartic acid salts four kinds of components and synergy, the viscosity of polymers soln can be significantly improved under high salinity, high rigidity condition, achieve cost and the balance improving polymer viscosity effect, there is excellent net effect.Utilize composition of the present invention, can improve the mobility of water-oil further, reduce sweeping phase fingering, improve sweep efficiency, thus can improve oil displacement efficiency, this has broad application prospects to the exploitation of high contents of calcium and magnesium oil reservoir
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described, but do not form any limitation of the invention.
Embodiment 1
First configuring salinity is 25000mg/L, the simulated formation water 200mL of hardness 650mg/L, accurately takes Tripotassium Citrate 0.748g, EDTA-2K 0.150g successively, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid potassium 1.5mg, poly-aspartic potassium 2.1mg(mass ratio is respectively: 83%, 16.6%, 0.17%, 0.23%).Slowly add in local water, by the slow stirring and dissolving of glass stick, polymkeric substance is joined in solution, be configured to the polymers soln that concentration is 2000mg/L.The viscosity 24.9mPa.s of polymers soln is measured with Brookfield viscometer.Independent simulated formation water configuration concentration is the polymers soln 200mL of 2000mg/L, and the viscosity again applying Brookfield viscometer measurement polymers soln is 23.5mPa.s.Therefore, the viscosity of polymers soln improves 6.0%.
Embodiment 2
First configuring salinity is 25000mg/L, the simulated formation water 200mL of hardness 1000mg/L, accurately takes Trisodium Citrate 1.217g, sodium ethylene diamine tetracetate 0.122g successively, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium 1.3mg, poly (sodium aspartate) 2.7mg(mass ratio is respectively: 90.6%, 9.1%, 0.1%, 02%).Slowly add in local water, by the slow stirring and dissolving of glass stick, polyacrylamide particle is joined in solution, be configured to the polymers soln that concentration is 2000mg/L.The viscosity 24.2mPa.s of polymers soln is measured with Brookfield viscometer.Independent simulated formation water configuration concentration is the polymers soln 200mL of 2000mg/L, and the viscosity again applying Brookfield viscometer measurement polymers soln is 20.8mPa.s.Therefore, the viscosity of polymers soln improves 16.3%.
Embodiment 3
First configuring salinity is 25000mg/L, the simulated formation water 200mL of hardness 1500mg/L, accurately takes Trisodium Citrate 1.825g, disodium ethylene diamine tetraacetate 0.183g successively, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium 2.0mg, poly (sodium aspartate) 4.0mg(mass ratio is respectively: 90.6%, 9.1%, 0.1%, 0.2%).Slowly add in local water, by the slow stirring and dissolving of glass stick, polymkeric substance is joined in solution, be configured to the polymers soln that concentration is 2000mg/L.The viscosity 21.5mPa.s of polymers soln is measured with Brookfield viscometer.Independent simulated formation water configuration concentration is the polymers soln 200mL of 2000mg/L, and the viscosity again applying Brookfield viscometer measurement polymers soln is 18.5mPa.s.Therefore, the viscosity of polymers soln improves 16.2%.
Comparative example 1
First configure the simulated formation water 200mL that salinity is 25000mg/L, hardness 650mg/L, accurately take Trisodium Citrate 0.92g.Slowly add in local water, by the slow stirring and dissolving of glass stick, polymkeric substance is joined in solution, be configured to the polymers soln that concentration is 2000mg/L.The viscosity 24.4mPa.s of polymers soln is measured with Brookfield viscometer.Independent simulated formation water configuration concentration is the polymers soln 200mL of 2000mg/L, and the viscosity again applying Brookfield viscometer measurement polymers soln is 23.5mPa.s.Therefore, the viscosity of polymers soln improves 3.8%.
Comparative example 2
First configure the simulated formation water 200mL that salinity is 25000mg/L, hardness 650mg/L, accurately take Trisodium Citrate 0.748g.Slowly add in local water, by the slow stirring and dissolving of glass stick, polymkeric substance is joined in solution, be configured to the polymers soln that concentration is 2000mg/L.The viscosity 24.1mPa.s of polymers soln is measured with Brookfield viscometer.Independent simulated formation water configuration concentration is the polymers soln 200mL of 2000mg/L, and the viscosity again applying Brookfield viscometer measurement polymers soln is 23.5mPa.s.Therefore, the viscosity of polymers soln improves 2.6%.
Can be learnt by above example, according to composition provided by the invention, compared to prior art (be also effect best Citrate trianion as the most frequently used in prior art), demonstrate certain synergy, the viscosity of polymers soln can be significantly provided.
It should be noted that above-described embodiment only for explaining the present invention, not forming any limitation of the invention.By referring to exemplary embodiments, invention has been described, but to should be understood to word wherein used be descriptive and explanatory vocabulary, instead of limited vocabulary.Can modify the present invention by the scope being defined in the claims in the present invention, and the present invention be revised not deviating from scope and spirit of the present invention.Although the present invention wherein described relates to specific method, material and embodiment, and do not mean that the present invention is limited to particular case disclosed in it, on the contrary, easily extensible of the present invention is to other all methods and applications with identical function.
Claims (9)
1. improve a composition for polymer solution viscosity, it comprises following component: Citrate trianion, edetate, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt and polyaspartic acid salts.
2. according to composition according to claim 1, it is characterized in that, described Citrate trianion is alkali metal citrate, is preferably selected from one or both in Trisodium Citrate and Tripotassium Citrate, more preferably Trisodium Citrate.
3. according to the composition described in claim 1 or 2, it is characterized in that, described edetate is basic metal edetate, is preferably selected from one or both in sodium ethylene diamine tetracetate and ethylenediamine tetraacetic acid (EDTA) potassium, more preferably sodium ethylene diamine tetracetate.
4. according to the composition in claim 1-3 described in any one, it is characterized in that, described 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt is basic metal 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt, is preferably selected from one or both in 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium and 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid potassium, more preferably 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium.
5. according to the composition in claim 1-4 described in any one, it is characterized in that, described polyaspartic acid salts is alkali metal polysilicate aspartate, the polymerization degree of its molecule is less than 50, be preferably selected from poly (sodium aspartate) and poly-aspartic potassium one or both, more preferably poly (sodium aspartate).
6. according to the composition described in claim 1-5 any one, it is characterized in that, in described composition, based on the gross weight of composition, the content of Citrate trianion is 80 ~ 95wt%, the content of edetate is 4 ~ 19wt%, and the content of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt is 0.1 ~ 0.5wt%, and the content of polyaspartic acid salts is 0.1 ~ 0.5wt%.
7. according to composition according to claim 6, it is characterized in that, in described composition, based on the gross weight of composition, the content of Citrate trianion is 83.0 ~ 91wt%, the content of edetate is 9 ~ 17wt%, and the content of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt is 0.1 ~ 0.2wt%, and the content of polyaspartic acid salts is 0.2% ~ 0.3wt%.
8. according to the application of the composition in claim 1-7 described in any one in polymer flooding.
9. according to the application of the composition in claim 1-7 described in any one in the displacement of reservoir oil of high contents of calcium and magnesium reservoir polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410060433.6A CN104861948B (en) | 2014-02-21 | 2014-02-21 | It is a kind of improve polymer solution viscosity composition and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410060433.6A CN104861948B (en) | 2014-02-21 | 2014-02-21 | It is a kind of improve polymer solution viscosity composition and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104861948A true CN104861948A (en) | 2015-08-26 |
| CN104861948B CN104861948B (en) | 2018-09-11 |
Family
ID=53908141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410060433.6A Active CN104861948B (en) | 2014-02-21 | 2014-02-21 | It is a kind of improve polymer solution viscosity composition and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104861948B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317590A (en) * | 2018-03-30 | 2019-10-11 | 中国石油化工股份有限公司 | It is suitble to the transfer drive system and preparation method thereof of high contents of calcium and magnesium oil reservoir |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463935A (en) * | 2002-06-07 | 2003-12-31 | 川化集团有限责任公司 | Environment-friendly water quality stabilizer |
| CN102030421A (en) * | 2010-11-01 | 2011-04-27 | 自贡市轻工业设计研究院有限责任公司 | Composite scale inhibitor as well as preparation method and application thereof |
| CN102418506A (en) * | 2012-01-10 | 2012-04-18 | 孙安顺 | Chemical flooding injection method for improving recovery rate of crude oil |
| CN103351857A (en) * | 2013-07-18 | 2013-10-16 | 中国石油大学(华东) | Salt-tolerant wormlike micellar system, preparation method and application thereof in flooding oil |
| CN103449619A (en) * | 2013-09-22 | 2013-12-18 | 四川泸天化股份有限公司 | Novel environment-friendly compound corrosion and scale inhibitor |
-
2014
- 2014-02-21 CN CN201410060433.6A patent/CN104861948B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463935A (en) * | 2002-06-07 | 2003-12-31 | 川化集团有限责任公司 | Environment-friendly water quality stabilizer |
| CN102030421A (en) * | 2010-11-01 | 2011-04-27 | 自贡市轻工业设计研究院有限责任公司 | Composite scale inhibitor as well as preparation method and application thereof |
| CN102418506A (en) * | 2012-01-10 | 2012-04-18 | 孙安顺 | Chemical flooding injection method for improving recovery rate of crude oil |
| CN103351857A (en) * | 2013-07-18 | 2013-10-16 | 中国石油大学(华东) | Salt-tolerant wormlike micellar system, preparation method and application thereof in flooding oil |
| CN103449619A (en) * | 2013-09-22 | 2013-12-18 | 四川泸天化股份有限公司 | Novel environment-friendly compound corrosion and scale inhibitor |
Non-Patent Citations (2)
| Title |
|---|
| 何登龙等: "《注聚工技术问答》", 31 May 2009 * |
| 李杰训等: "《聚合物驱油工程技术问答》", 31 December 1996 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317590A (en) * | 2018-03-30 | 2019-10-11 | 中国石油化工股份有限公司 | It is suitble to the transfer drive system and preparation method thereof of high contents of calcium and magnesium oil reservoir |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104861948B (en) | 2018-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102504794B (en) | Hydrophobically associating polymer and mixed surfactant binary compound oil displacement system | |
| CN104371695A (en) | Slick water applied to shale gas industrialized fracturing exploitation and preparation method thereof | |
| CN104893702B (en) | For containing H2Foam discharging agent for water and gas production well drainage and gas production of S gas | |
| CN102464976B (en) | Oil-displacing composition and preparation method thereof | |
| CN104610954A (en) | Formula and preparation method suitable for preparing fracturing fluid from continental facies shale gas well fracturing flow-back fluid treatment water | |
| CN105462568A (en) | Resin nanoparticle latex plugging agent for drilling fluid and preparation method thereof | |
| CN109135709B (en) | Viscosity-reducing oil displacement agent and oil displacement system suitable for heavy oil reservoir | |
| CN105802598B (en) | Modified alkali lignin plural gel blocking agent of a kind of polyacrylonitrile sodium salt and preparation method thereof | |
| CN110467910A (en) | Oil displacement agent composition and preparation method thereof and reducing thick oil viscosity are handled up recovery method | |
| US3825067A (en) | Preparation of aqueous solutions of polyacrylamides suitable for supplemented recovery of petroleum | |
| CN102746441B (en) | Acrylamide terpolymer and polymer and preparation method and application thereof | |
| CN105820804B (en) | Hypersalinity-resistant oil reservoir deep liquid flow diversion chemical agent and preparation method and application thereof | |
| CN112961666B (en) | Nano composite cross-linking agent for fracturing fluid and preparation method thereof | |
| CN106947457A (en) | A kind of polymer acid liquor thickener | |
| CN104861948A (en) | Composition used for increasing polymer solution viscosity, and applications thereof | |
| CN104151574A (en) | Cement additive with temperature-sensitive thickening effect and preparation method of cement additive | |
| CN102746456B (en) | Terpolymer and polymer and preparation method and application thereof | |
| CN107245126B (en) | A kind of flooding polymers containing silicate sturcture and application | |
| CN109852365A (en) | Method for preparing guanidine gum fracturing fluid, guanidine gum fracturing fluid prepared by method and application of guanidine gum fracturing fluid | |
| CN106318362B (en) | A kind of novel displacement of reservoir oil carbon dioxide foaming agent and preparation method thereof | |
| CN103540307B (en) | For compositions improving recovery efficiency of high-temperature oil reservoir and preparation method thereof | |
| CN104513654A (en) | Improver, oil-displacing agent composition, oil-displacing agent and preparation method thereof | |
| CN103450871B (en) | A kind of environmentally friendly anionic fracturing fluid and preparation method thereof | |
| CN103541701B (en) | For improving the flooding method of high-temperature oil reservoir tertiary oil recovery rate | |
| CN104140797B (en) | A kind of gas drive anti-migration agent and its application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |