CN105131929B - One kind grafting parcel thinner and its viscosity reducing process - Google Patents
One kind grafting parcel thinner and its viscosity reducing process Download PDFInfo
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- CN105131929B CN105131929B CN201510560958.0A CN201510560958A CN105131929B CN 105131929 B CN105131929 B CN 105131929B CN 201510560958 A CN201510560958 A CN 201510560958A CN 105131929 B CN105131929 B CN 105131929B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—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 surfactants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
- F17D1/17—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by mixing with another liquid, i.e. diluting
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention provides one kind to be grafted parcel thinner and its viscosity reducing process.Grafting parcel thinner includes grafting agent and parcel thinner；Counted using the gross mass of grafting agent as 100%, grafting agent includes：2% 3% ethylene-vinyl acetate copolymer solution, 2% 5% dichloroethanes, the light oil of 1% 2% polyacrylate and surplus；Counted using the gross mass for wrapping up thinner as 100%, parcel thinner includes：20% 25% sodium heavy alkyl benzene sulfonate solution, 45% 55% fatty alcohol-ether sodium sulfate, 5% 10% APES solution, 5% 8% polyethylene glycol, 0.5% 0.8% neopelex, the water of 1% 1.5% sodium hydroxide solution and surplus.It is that solid is respectively prepared in grafting agent and parcel thinner when above-mentioned grafting parcel thinner is used for viscosity reduction；Grafting agent solid is dissolved in viscous crude, obtains viscous oil mixture；It is soluble in water that thinner solid will be wrapped up, obtain wrapping up viscosity reduction agent solution；Parcel viscosity reduction agent solution is dissolved in viscous oil mixture, completes the viscosity reduction processing to viscous crude.
Description
Technical field
The present invention relates to a kind of thinner, more particularly to a kind of grafting parcel thinner and its viscosity reducing process, belong to oil
Exploitation and environment-friendly materials technical field.
Background technology
Conventional viscosity reduction method has the methods of thin oil blending visbreaking, heating, viscosity reducing, physical field viscosity reduction and chemical viscosity reduction.Mesh
Viscosity reduction technology (heating, viscosity reducing, mixing dilute viscosity reduction) in the production of preceding traditional viscous crude has tended to be ripe, but for super-viscous oil or
Person is super―heavy oil, and traditional viscosity reduction technological means seems relatively simple, and there is high energy consumption, the shortcomings of security difference,
The production cost of viscous crude how is reduced, improves thickened oil recovery and security, economy in transportation, is to be badly in need of solution from now on
Certainly the problem of.
Exploitation and collection of the reducing thick oil viscosity way choice on viscous crude are defeated to suffer from very important influence, therefore wants to determine
One economy, viscosity reduction technique efficiently, safe, should just be made overall plans, take a panoramic view of the situation, and whole exploitation and the defeated processing of collection are contacted
Together, economy, the security of each process procedure are taken into full account, according to the gathering and transferring process at the physical property of viscous crude and scene
Feature, a rational viscosity reduction technique is determined, so as to greatly improve the economic benefit of utilization viscous crude resource.
Chemical viscosity reduction technology is simple and convenient and significant effect, turns into the effective technology means of reducing thick oil viscosity.But at present
Many shortcomings be present in thinner：Thinner is with strong points, viscosity reduction efficiency is low, thinner is alkaline big, produces unnecessary fouling and asks
Topic and etching problem, it is incompatible with multi-purpose station demulsifier, the later stage is dehydrated difficulty etc..
For above-mentioned technical problem, there is provided a kind of efficient, widely used reducing thick oil viscosity technology is that this area urgently solves
Certainly the problem of.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides one kind to be grafted parcel thinner, grafting parcel thinner
Have a wide range of application, viscosity reduction efficiency high.
In order to achieve the above object, the invention provides one kind to be grafted parcel thinner, and grafting parcel thinner includes
Grafting agent and parcel thinner；
Wherein, counted using the gross mass of the grafting agent as 100%, the grafting agent includes：2%-3% ethylene vinyl acetate second
Alkene copolymer solution, 2%-5% dichloroethanes, the light oil of 1%-2% polyacrylate and surplus；
Counted using the gross mass for wrapping up thinner as 100%, the parcel thinner includes：20%-25% heavy alkyl benzene
Sodium sulfonate solution, 45%-55% fatty alcohol-ether sodium sulfate, 5%-10% APES solution, 5%-8%
Polyethylene glycol, 0.5%-0.8% neopelex, the water of 1%-1.5% sodium hydroxide solution and surplus.
Grafting agent and parcel thinner in above-mentioned grafting parcel thinner provided by the invention are independently packed, and wait to make
Used time proportionally use.
In grafting parcel thinner provided by the invention, it is preferable that the matter of the ethylene-vinyl acetate copolymer solution of use
Amount concentration is 30%-37%；The molecular weight of the ethylene-vinyl acetate copolymer used is 15000-17000.
In grafting parcel thinner provided by the invention, it is preferable that the polyacrylate of use includes polyacrylic acid 16
Alcohol ester.The polyacrylic acid hexadecanol ester of use is produced by Anhui water bodyguard Environmental Protection Technology Co., Ltd.
In grafting parcel thinner provided by the invention, it is preferable that the carbon number of the light oil used is 9-11.
In grafting parcel thinner provided by the invention, it is preferable that the quality of the sodium heavy alkyl benzene sulfonate solution of use is dense
Spend for 20%-30%.The sodium heavy alkyl benzene sulfonate of use is by hundred big Chemical Manufacture of Jinan.
It is provided by the invention grafting parcel thinner in, it is preferable that the mass concentration of the fatty alcohol-ether sodium sulfate used for
10%-20%.The fatty alcohol-ether sodium sulfate of use is produced by Yong Jiexihua raw materials Co., Ltd of Shenyang City.
In grafting parcel thinner provided by the invention, it is preferable that the quality of the APES solution of use
Concentration is 10%-20%；The degree of polymerization≤10 of the APES of use.
In grafting parcel thinner provided by the invention, it is preferable that the polyethylene glycol of use includes polyethylene glycol 400；Hydrogen
The mass concentration of sodium hydroxide solution is 20%.
In grafting parcel thinner provided by the invention, it is preferable that the grafting agent of use is through the following steps that be prepared into
Arrive：
After the ethylene-vinyl acetate copolymer solution, dichloroethanes, polyacrylate and light oil are mixed, 50
In DEG C -70 DEG C of water-bath, 30min-60min is stirred, obtains the grafting agent.
In grafting parcel thinner provided by the invention, the parcel thinner of use be by sodium heavy alkyl benzene sulfonate solution,
Fatty alcohol-ether sodium sulfate, APES solution, polyethylene glycol, neopelex, sodium hydroxide solution and
Water is thoroughly mixed what is obtained.
In grafting parcel thinner provided by the invention, it is preferable that the pH of the parcel thinner is 6-8.
Grafting parcel thinner provided by the invention is that grafting agent and parcel thinner are respectively prepared when specifically used
Solid reuses.
When wrapping up thinner to viscous crude progress viscosity reduction processing using above-mentioned grafting, following steps are specifically included：
Solid is respectively prepared in grafting agent and parcel thinner, obtains grafting agent solid and parcel thinner solid；
Grafting agent solid is dissolved in viscous crude, is sufficiently stirred, obtains viscous oil mixture, the addition of grafting agent solid is
1500mg/L-2000mg/L；
It is soluble in water that thinner solid will be wrapped up, obtain wrapping up viscosity reduction agent solution, the addition of parcel thinner solid is
1000mg/L-1500mg/L, wherein, the mass ratio of viscous crude and water is 1:3-3:1；
Parcel viscosity reduction agent solution is dissolved in the viscous oil mixture, completes to wrap up viscosity reduction using grafting provided by the invention
Agent is handled the viscosity reduction of viscous crude.
When the viscosity reducing effect for wrapping up thinner to grafting provided by the invention is evaluated, according to《Oil-in-water type viscous crude drops
Stick technical specification》Q/SY 118-2013 are carried out, and specifically include following steps：
By heating crude oil to 70 DEG C -80 DEG C, macromolecular components therein is fully separated out, add grafting agent, stirring, will connect
Branch agent is sufficiently mixed with crude oil, obtains blends of crudes；
It is soluble in water that thinner will be wrapped up, obtain wrapping up viscosity reduction agent solution；
Parcel viscosity reduction agent solution is dissolved in blends of crudes, is sufficiently mixed stirring, reaches the purpose of grafting parcel viscosity reduction,
The viscosity reducing effect of the grafting parcel thinner to the present invention is evaluated in a conventional manner.
Grafting parcel thinner provided by the invention has the following advantages that compared with existing thinner：
Grafting parcel thinner provided by the invention has a wide range of application；
The viscosity reduction efficiency high of grafting parcel thinner provided by the invention；
It is provided by the invention grafting parcel thinner will not produce fouling, also will not etching apparatus, belong to a kind of green ring
The thinner of guarantor；
The compatibility of grafting parcel thinner and water provided by the invention is good, does not influence later stage dehydration.
Embodiment
In order to which technical characteristic, purpose and the beneficial effect of the present invention is more clearly understood, now to the skill of the present invention
Art scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
Embodiment 1
Present embodiments provide a kind of grafting parcel thinner, it is through the following steps that be prepared：
By 2% ethylene-vinyl acetate copolymer (active ingredient 37%, molecular weight 17000), 2% two chloroethenes
C9 light oils (being counted using the gross mass of grafting agent as the 100%) mixing of alkane, 1% polyacrylic acid hexadecanol ester and surplus is put into burning
In bottle, under 50 DEG C of water-baths of normal pressure, it is sufficiently stirred 30-60min and grafting agent is made；
The fatty alcohol polyoxy that sodium heavy alkyl benzene sulfonate that solid content by 25% is 30%, 55% mass concentration are 20%
Ethene ether sodium sulfate, the APES that 10% mass concentration is 20%, (molecular weight is 8% polyethylene glycol
400), 0.5% neopelex, 1.5% mass concentration be 20% sodium hydroxide solution and surplus water (with
The gross mass of parcel thinner is 100% meter) stirring is sufficiently mixed, obtain wrapping up thinner.
The viscosity reducing effect that the present embodiment wraps up above-mentioned grafting thinner has carried out evaluation test, and laboratory sample is the Liaohe River
The area A wells crude oil of oil field dawn oil recovery factory operation six and underground water, are comprised the following steps that：
By the area A wells heating crude oil of Liaohe Oil Field dawn oil recovery factory operation six to 70-80 DEG C, add the above-mentioned of the present embodiment and connect
Branch agent, stirring, obtains blends of crudes；
Parcel thinner is dissolved in underground water, obtains wrapping up viscosity reduction agent solution；
Parcel viscosity reduction agent solution is dissolved in blends of crudes, after being sufficiently mixed stirring, according to standard《Oil-in-water type viscous crude
Thinner technical specification》Q/SY 118-2013 are evaluated, and at 50 DEG C, A well crude oil original viscosity is 46910mPas, are added
It is 49mPas after the grafting parcel thinner of the present embodiment, viscosity break ratio 99.9%.
Embodiment 2
Present embodiments provide a kind of grafting parcel thinner, it is through the following steps that be prepared：
By 2% ethylene-vinyl acetate copolymer (active ingredient 37%, molecular weight 17000), 2% two chloroethenes
C9 light oils (being counted using the gross mass of grafting agent as the 100%) mixing of alkane, 1% polyacrylic acid hexadecanol ester and surplus is put into burning
In bottle, under 50 DEG C of water-baths of normal pressure, it is sufficiently stirred 30-60min and grafting agent is made；
The fatty alcohol polyoxy that sodium heavy alkyl benzene sulfonate that solid content by 25% is 30%, 55% mass concentration are 20%
Ethene ether sodium sulfate, the APES that 10% mass concentration is 20%, (molecular weight is 8% polyethylene glycol
400), 0.5% neopelex, 1.5% mass concentration be 20% sodium hydroxide solution and surplus water (with
The gross mass of parcel thinner is 100% meter) stirring is sufficiently mixed, obtain wrapping up thinner.
The viscosity reducing effect that the present embodiment wraps up above-mentioned grafting thinner has carried out evaluation test, and laboratory sample is the Liaohe River
The area B wells crude oil of oil field dawn oil recovery factory operation six and underground water, are comprised the following steps that：
By the area A wells heating crude oil of Liaohe Oil Field dawn oil recovery factory operation six to 70-80 DEG C, add the above-mentioned of the present embodiment and connect
Branch agent, stirring, obtains blends of crudes；
Parcel thinner is dissolved in underground water, obtains wrapping up viscosity reduction agent solution；
Parcel viscosity reduction agent solution is dissolved in blends of crudes, after being sufficiently mixed stirring, according to standard《Oil-in-water type viscous crude
Thinner technical specification》Q/SY 118-2013 are evaluated, and at 50 DEG C, B well crude oil original viscosity is 9950mPas, are added
Viscosity is 38.5mPas after the grafting parcel thinner of the present embodiment, viscosity break ratio 99.6%.
Embodiment 3
The present embodiment carries out the grafting parcel thinner of embodiment 1 the compatibility evaluation experimental with water.
Above-mentioned grafting parcel thinner 1000mg/L is added in a colorimetric cylinder 1 containing water, another comprises only water
Reference is used as in colorimetric cylinder 2.According to six area's water treatment processes, sequentially added brokenly in the colorimetric cylinder 1 containing grafting parcel thinner
Emulsion, pre- de- agent, comprise only and flocculant, flocculation aid are added in the colorimetric cylinder 2 of water, be demulsified 90 DEG C of temperature.It is determined to water process
Influence, as a result as shown in table 1.
Table 1
As shown in Table 1, grafting parcel thinner is added as the dehydrating amount of the colorimetric cylinder of non-adjunction branch parcel thinner,
It is 75mL, upper strata Water in oil is respectively less than 5%, illustrates not have an impact demulsification after adding grafting parcel thinner；Add
Grafting parcel thinner is consistent with the cotton-shaped object amount of abjection of the colorimetric cylinder of non-adjunction branch parcel thinner, and water quality color is identical, says
Bright grafting parcel thinner does not have an impact to flocculation.Therefore, add grafting parcel thinner agent will not be to multi-purpose station dehydration at
Reason has an impact.
Above example illustrates, the viscosity reduction efficiency high, good with the compatibility of water of grafting parcel thinner provided by the invention,
Later stage dehydration is not influenceed.
Claims (10)
1. one kind grafting parcel thinner, grafting parcel thinner include grafting agent and parcel thinner；
Wherein, counted using the gross mass of the grafting agent as 100%, the grafting agent includes：2%-3% ethylene-vinyl acetate is total to
Copolymer solution, 2%-5% dichloroethanes, the light oil of 1%-2% polyacrylate and surplus；
Counted using the gross mass for wrapping up thinner as 100%, the parcel thinner includes：20%-25% heavy alkylbenzene sulfonic acid
Sodium solution, 45%-55% fatty alcohol-ether sodium sulfate, 5%-10% APES solution, 5%-8% poly- second
Glycol, 0.5%-0.8% neopelex, the water of 1%-1.5% sodium hydroxide solution and surplus.
2. grafting parcel thinner according to claim 1, wherein, the quality of the ethylene-vinyl acetate copolymer solution
Concentration is 30%-37%；The molecular weight of the ethylene-vinyl acetate copolymer is 15000-17000.
3. grafting parcel thinner according to claim 1, wherein, the polyacrylate includes polyacrylic acid hexadecanol
Ester；The carbon number of the light oil is 9-11.
4. grafting parcel thinner according to claim 1, wherein, the mass concentration of the sodium heavy alkyl benzene sulfonate solution
For 20%-30%.
5. grafting parcel thinner according to claim 1, wherein, the mass concentration of the fatty alcohol-ether sodium sulfate is
10%-20%.
6. grafting parcel thinner according to claim 1, wherein, the quality of the APES solution is dense
Spend for 10%-20%；The degree of polymerization≤10 of the APES of use.
7. grafting parcel thinner according to claim 1, wherein, the polyethylene glycol includes polyethylene glycol 400；It is described
The mass concentration of sodium hydroxide solution is 20%.
8. grafting parcel thinner according to claim 1, wherein, the grafting agent is through the following steps that be prepared
's：
After the ethylene-vinyl acetate copolymer solution, dichloroethanes, polyacrylate and light oil are mixed, at 50 DEG C -70
DEG C water-bath in, stir 30min-60min, obtain the grafting agent.
9. grafting parcel thinner according to claim 1, wherein, the pH of the parcel thinner is 6-8.
10. the application of the grafting parcel thinner described in claim any one of 1-9, the grafting wrap up thinner and viscous crude are carried out
Viscosity reduction processing, specifically includes following steps：
Solid is respectively prepared in grafting agent and parcel thinner, obtains grafting agent solid and parcel thinner solid；
The grafting agent solid is dissolved in viscous crude, is sufficiently stirred, obtains viscous oil mixture, the addition of the grafting agent solid
For 1500mg/L-2000mg/L；
The parcel thinner solid is soluble in water, obtain wrapping up viscosity reduction agent solution, the addition of the parcel thinner solid
Measure as 1000mg/L-1500mg/L, wherein, the mass ratio of viscous crude and water is 1:3-3:1；
Will parcel viscosity reduction agent solution be dissolved in the viscous oil mixture, complete it is described grafting parcel thinner to the viscosity reduction of viscous crude at
Reason.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510560958.0A CN105131929B (en) | 2015-09-06 | 2015-09-06 | One kind grafting parcel thinner and its viscosity reducing process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510560958.0A CN105131929B (en) | 2015-09-06 | 2015-09-06 | One kind grafting parcel thinner and its viscosity reducing process |
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| CN105131929A CN105131929A (en) | 2015-12-09 |
| CN105131929B true CN105131929B (en) | 2018-03-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110305646A (en) * | 2018-03-27 | 2019-10-08 | 中国石油天然气股份有限公司 | Thinner and its preparation method and application |
| CN113528109B (en) * | 2021-06-02 | 2022-08-02 | 中国石油大学(北京) | Viscosity reducer, preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618239A (en) * | 2011-12-28 | 2012-08-01 | 中国石油天然气股份有限公司 | Salt- and temperature-resistant emulsification viscosity reducer for heavy oil |
| CN102732241A (en) * | 2012-05-29 | 2012-10-17 | 中国石油天然气股份有限公司 | Easily-degradable alkali-free viscosity reducer for thick oil and preparation method thereof |
| CN103450868A (en) * | 2013-08-12 | 2013-12-18 | 新疆天普石油天然气工程技术有限公司 | Heat-resistant salt-tolerant water-soluble amphiphilic polymer composite thick oil viscosity reducer |
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2015
- 2015-09-06 CN CN201510560958.0A patent/CN105131929B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618239A (en) * | 2011-12-28 | 2012-08-01 | 中国石油天然气股份有限公司 | Salt- and temperature-resistant emulsification viscosity reducer for heavy oil |
| CN102732241A (en) * | 2012-05-29 | 2012-10-17 | 中国石油天然气股份有限公司 | Easily-degradable alkali-free viscosity reducer for thick oil and preparation method thereof |
| CN103450868A (en) * | 2013-08-12 | 2013-12-18 | 新疆天普石油天然气工程技术有限公司 | Heat-resistant salt-tolerant water-soluble amphiphilic polymer composite thick oil viscosity reducer |
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