CN102352228A - High temperature resistance super heavy oil viscosity reducer used with steam and its preparation method - Google Patents
High temperature resistance super heavy oil viscosity reducer used with steam and its preparation method Download PDFInfo
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- CN102352228A CN102352228A CN2011102352656A CN201110235265A CN102352228A CN 102352228 A CN102352228 A CN 102352228A CN 2011102352656 A CN2011102352656 A CN 2011102352656A CN 201110235265 A CN201110235265 A CN 201110235265A CN 102352228 A CN102352228 A CN 102352228A
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- high temperature
- viscosity reducer
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- sodium sulfonate
- viscosity
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Abstract
The invention provides a high temperature resistance super heavy oil viscosity reducer used with steam and its preparation method. The viscosity reducer comprises the following raw materials by weight ratio: 40-65% of petroleum sulfonate formaldehyde condensation product, 10-30% of sodium nonyl phenol polyethyleneoxy ether sulfonate or fatty alcohol polyoxyethylene ether sodium sulphaste, 1.0-2.0% of sodium bicarbonate, 10.0-30.0% of water and 2.0-5.0% of high temperature film spreading agent. The method comprises the following steps: a. adding sodium bicarbonate and the high temperature film spreading agent in water, fully stirring to dissolve for acquiring dissolving liquid; b. adding petroleum sulfonate formaldehyde condensation product into the dissolving liquid obtained in a step a, stirring to dissolve for acquiring mixed liquor; c. adding sodium nonyl phenol polyethyleneoxy ether sulfonate or fatty alcohol polyoxyethylene ether sodium sulphaste into the mixed liquor obtained in a step b, stirring to dissolve for acquiring the product. The viscosity reducer of the present invention has the characteristic of high viscosity reduction rate and high temperature resistance.
Description
Technical field
The present invention relates to the heavy crude thinner that a kind of oil-field development is used, relate in particular to a kind of viscosity-depression agent and preparation method who accompanies steam with the ultra viscous crude of high temperature resistant spy.
Background technology
At present, the general waterflooding in common heavy oil oil field, the general exploitation via steam injection of special ultra viscous crude field.To annotate the vapour quality in order improving, to reduce viscosity of crude, be aided with usually with viscosity-depression agent and exploit.In some oil-field thick-oil block, general viscosity of crude is at 2000~70000mPa.s, and is mobile poor because viscosity of crude is big, brings difficulty for defeated the adopting of exploitation and collection.The viscosity-depression agent of oil field use at present has oil-soluble viscosity reducer and water-soluble viscosity-depression agent, and oil-soluble viscosity reducer is generally inflammable substance, flash-point lower (more than 30 ℃).Consider the on-the-spot security of using, adopt water-soluble viscosity-depression agent usually.Water-soluble viscosity-depression agent is generally basic cpd or tensio-active agent, or with the compound of other medicaments.Because the difference of oil property does not have a kind of water-soluble viscosity-depression agent that is fit to all viscous oil recoveries.Therefore in the triturating of viscosity-depression agent, should according to the viscous crude character of specific oil field, particular block to institute's with medicament estimate, screening, composite, thereby select best medicament and consumption.Commercially available water-soluble viscosity-depression agent model has GDH-02, XJN-1 at present, and to the Lean viscous crude, both viscosity break ratios are about 71.0~90.0%.GDH-02, XJN-1 viscosity-depression agent are behind 300 ℃ of following thermal treatment 24h, and viscosity break ratio drops to about 70% by about 90%.This is that the part material is prone to decompose when high temperature, poor heat stability because this type of water-soluble viscosity-depression agent contains, and causes the viscosity-depression agent non-refractory.To the special ultra viscous crude in Lean, present commercially available viscosity-depression agent exists that viscosity break ratio is low, the problem of temperature tolerance difference.
Summary of the invention
The present invention is intended to overcome the deficiency of prior art, and it is high that one of purpose provides a kind of viscosity break ratio, the special viscosity reducer for extremely-viscous oil of resistant to elevated temperatures companion's steam; Two of purpose provides the preparation method who realizes one of purpose.
One of the object of the invention can be realized through following technical measures:
This viscosity-depression agent is made up of following raw materials in weight portion:
Petroleum sodium sulfonate formaldehyde condensation products 40~65
Polyoxyethylene nonylphenol ether sodium sulfonate or polyoxyethylenated alcohol sodium sulfate 10~30
Sodium hydrogencarbonate 1.0~2.0
Water 10.0~30.0
High temperature film spreading agent 2.0~5.0.
One of the object of the invention also can be realized through following technical measures:
Described petroleum sodium sulfonate formaldehyde condensation products is 48~58 weight parts; Described polyoxyethylene nonylphenol ether sodium sulfonate or polyoxyethylenated alcohol sodium sulfate are 17~23 weight parts.
Two of the object of the invention can be realized through following technical measures:
This method is carried out as follows:
A. sodium hydrogencarbonate and high temperature film spreading agent are added to the water, are stirred well to dissolving, get lysate;
B. the petroleum sodium sulfonate formaldehyde condensation products is joined in the lysate of a step, be stirred to dissolving, get mixed solution;
C. polyoxyethylene nonylphenol ether sodium sulfonate or polyoxyethylenated alcohol sodium sulfate are joined in the mixed solution of b step, be stirred to dissolving, get product.
General oil field is that 15-18MPa, temperature are under 350 ℃ the reservoir condition at ultra thick oil filling steam pressure; Consider thermosteresis; Basically at 300 ℃; It is the ultra viscous crude of 55000.0mPa.s (50 ℃) that viscosity-depression agent performance of the present invention can make viscosity of crude; Viscosity break ratio reaches 99.8%; Viscosity-depression agent is placed in 350 ℃ the high-temperature airtight container behind the aging 24h, the viscosity break ratio of measuring this viscosity-depression agent is still more than 99.1%.Therefore can satisfy the on-the-spot use of special ultra viscous crude, this viscosity-depression agent can inject stratum (annotating in advance) before steam treatment, also viscosity-depression agent can be injected stratum (companion annotates) with steam.Laboratory test results shows that the companion annotates effect and is better than preparatory notes at present.
Embodiment:
Embodiment 1:
A. the sodium hydrogencarbonate of 1.0 weight parts and the high temperature film spreading agent XLB-1 of 5.0 weight parts are joined in the water of 10.0 weight parts, be stirred well to dissolving, get lysate;
B. the petroleum sodium sulfonate formaldehyde condensation products with 40 weight parts joins in the lysate of a step, is stirred to dissolving, gets mixed solution;
C. the polyoxyethylene nonylphenol ether sodium sulfonate with 30 weight parts joins in the mixed solution of b step, is stirred to dissolving, gets product.
Embodiment 2:
A. the sodium hydrogencarbonate of 2.0 weight parts and the high temperature film spreading agent XLB-1 of 2.0 weight parts are joined in the water of 30.0 weight parts, be stirred well to dissolving, get lysate;
B. the petroleum sodium sulfonate formaldehyde condensation products with 65 weight parts joins in the lysate of a step, is stirred to dissolving, gets mixed solution;
C. the polyoxyethylene nonylphenol ether sodium sulfonate with 10 weight parts joins in the mixed solution of b step, is stirred to dissolving, gets product.
Embodiment 3:
A. the sodium hydrogencarbonate of 1.0 weight parts and the high temperature film spreading agent XLB-1 of 5.0 weight parts are joined in the water of 10.0 weight parts, be stirred well to dissolving, get lysate;
B. the petroleum sodium sulfonate formaldehyde condensation products with 48 weight parts joins in the lysate of a step, is stirred to dissolving, gets mixed solution;
C. the polyoxyethylene nonylphenol ether sodium sulfonate with 23 weight parts joins in the mixed solution of b step, is stirred to dissolving, gets product.
Embodiment 4:
A. the sodium hydrogencarbonate of 1.0 weight parts and the high temperature film spreading agent XLB-1 of 5.0 weight parts are joined in the water of 10.0 weight parts, be stirred well to dissolving, get lysate;
B. the petroleum sodium sulfonate formaldehyde condensation products with 58 weight parts joins in the lysate of a step, is stirred to dissolving, gets mixed solution;
C. the polyoxyethylene nonylphenol ether sodium sulfonate with 17 weight parts joins in the mixed solution of b step, is stirred to dissolving, gets product.
Embodiment 5:
A. the sodium hydrogencarbonate of 1.5 weight parts and the high temperature film spreading agent XLB-1 of 3.0 weight parts are joined in the water of 20.0 weight parts, be stirred well to dissolving, get lysate;
B. the petroleum sodium sulfonate formaldehyde condensation products with 53 weight parts joins in the lysate of a step, is stirred to dissolving, gets mixed solution;
C. the polyoxyethylene nonylphenol ether sodium sulfonate with 20 weight parts joins in the mixed solution of b step, is stirred to dissolving, gets product.
Embodiment 6:
Replace the polyoxyethylene nonylphenol ether sodium sulfonate with polyoxyethylenated alcohol sodium sulfate in the c step, other are respectively with embodiment 1-5.
Claims (4)
1. companion's steam is characterized in that with high temperature resistant special viscosity reducer for extremely-viscous oil this viscosity-depression agent is made up of following raw materials in weight portion:
Petroleum sodium sulfonate formaldehyde condensation products 40~65
Polyoxyethylene nonylphenol ether sodium sulfonate or polyoxyethylenated alcohol sodium sulfate 10~30
Sodium hydrogencarbonate 1.0~2.0
Water 10.0~30.0
High temperature film spreading agent 2.0~5.0.
2. a kind of companion's steam according to claim 1 is characterized in that with high temperature resistant special viscosity reducer for extremely-viscous oil described petroleum sodium sulfonate formaldehyde condensation products is 48~58 weight parts.
3. a kind of companion's steam according to claim 1 is characterized in that with high temperature resistant special viscosity reducer for extremely-viscous oil described polyoxyethylene nonylphenol ether sodium sulfonate or polyoxyethylenated alcohol sodium sulfate are 17~23 weight parts.
4. the described companion's steam of claim 1 is with the preparation method of high temperature resistant special viscosity reducer for extremely-viscous oil, it is characterized in that this method carries out as follows:
A. sodium hydrogencarbonate and high temperature film spreading agent are added to the water, are stirred well to dissolving, get lysate;
B. the petroleum sodium sulfonate formaldehyde condensation products is joined in the lysate of a step, be stirred to dissolving, get mixed solution;
C. polyoxyethylene nonylphenol ether sodium sulfonate or polyoxyethylenated alcohol sodium sulfate are joined in the mixed solution of b step, be stirred to dissolving, get product.
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CN 201110235265 CN102352228B (en) | 2011-08-17 | 2011-08-17 | High temperature resistance super heavy oil viscosity reducer used with steam and preparation method thereof |
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CN 201110235265 CN102352228B (en) | 2011-08-17 | 2011-08-17 | High temperature resistance super heavy oil viscosity reducer used with steam and preparation method thereof |
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CN102352228A true CN102352228A (en) | 2012-02-15 |
CN102352228B CN102352228B (en) | 2013-09-11 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10407611B2 (en) | 2016-01-08 | 2019-09-10 | Ecolab Usa Inc. | Heavy oil rheology modifiers for flow improvement during production and transportation operations |
CN106543998B (en) * | 2016-10-19 | 2020-06-12 | 中国石油化工股份有限公司 | Hydrothermal cracking catalytic viscosity reducer and preparation method thereof |
CN113528109A (en) * | 2021-06-02 | 2021-10-22 | 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 |
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CN101074367A (en) * | 2006-08-17 | 2007-11-21 | 中国石油天然气股份有限公司 | Magma diluent |
CN101092558A (en) * | 2007-07-20 | 2007-12-26 | 于毅 | Viscosity reducting, de-waxing, deoiling auxiliary agent in use for extracting petroleum, and preparation method |
CN101717623A (en) * | 2009-11-30 | 2010-06-02 | 北京奥凯立科技发展股份有限公司 | Method for preparing viscosity depressant for drilling fluid |
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2011
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101074367A (en) * | 2006-08-17 | 2007-11-21 | 中国石油天然气股份有限公司 | Magma diluent |
CN101092558A (en) * | 2007-07-20 | 2007-12-26 | 于毅 | Viscosity reducting, de-waxing, deoiling auxiliary agent in use for extracting petroleum, and preparation method |
CN101717623A (en) * | 2009-11-30 | 2010-06-02 | 北京奥凯立科技发展股份有限公司 | Method for preparing viscosity depressant for drilling fluid |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10407611B2 (en) | 2016-01-08 | 2019-09-10 | Ecolab Usa Inc. | Heavy oil rheology modifiers for flow improvement during production and transportation operations |
CN106543998B (en) * | 2016-10-19 | 2020-06-12 | 中国石油化工股份有限公司 | Hydrothermal cracking catalytic viscosity reducer and preparation method thereof |
CN113528109A (en) * | 2021-06-02 | 2021-10-22 | 中国石油大学(北京) | Viscosity reducer, preparation method and application thereof |
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