CN106146738A - A kind of method that acer ginnala leaf resource prepares weatherability heavy crude thinner - Google Patents
A kind of method that acer ginnala leaf resource prepares weatherability heavy crude thinner Download PDFInfo
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- CN106146738A CN106146738A CN201610491716.5A CN201610491716A CN106146738A CN 106146738 A CN106146738 A CN 106146738A CN 201610491716 A CN201610491716 A CN 201610491716A CN 106146738 A CN106146738 A CN 106146738A
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- Prior art keywords
- acer ginnala
- thinner
- prepared
- weatherability
- ginnala leaf
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
- C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
- C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
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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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
Abstract
The present invention relates to a kind of method that acer ginnala leaf resource prepares weatherability heavy crude thinner, belong to thinner preparing technical field.The polymerization thinner salt tolerant weather resistance that the present invention is directed to prepare at present is poor, interfacial tension is big, the problem not reaching use demand, it is modified by the gallic acid contained by acer ginnala leaf inside, owing to gallic acid is natural aromatic ring material, by phase cyclic structural unit polarity, the resin and asphalt of long side chain nonhydrocarbon condensed ring reacts with viscous crude, the linear structure unit simultaneously contained, reduce the crude oil high viscosity that colloid causes, again by sulfonic introducing in 2 acrylamide 2 methyl propane sulfonic acids, weatherability heavy crude thinner maximum operation (service) temperature prepared by the present invention is 0.12% up to 250 DEG C of viscosity reduction concentration, viscosity break ratio is up to more than 96% and preparation process is simple, environmental protection, environmentally safe.
Description
Technical field
The present invention relates to a kind of method that acer ginnala leaf resource prepares weatherability heavy crude thinner, belong to thinner and prepare
Technical field.
Background technology
China's heavy oil reserves is abundant and widely distributed, in 70 many places such as Panjin, triumph, Xinjiang, Nanyang, Jilin, huge ports
Find heavy oil field.Owing to energy supply is the severeest, easily adopt crude oil production amount and cannot meet huge demand, viscous crude
Exploitation obtains global attention increasingly.So, along with successively decreasing of oil field ordinary crude oils yield everywhere, the exploitation of viscous crude will
Can constantly be paid attention to, the exploitation of mink cell focus will have broad prospects.Emulsifying is that exploitation mink cell focus is the most now
One of effective approach, thinner kind to be determined, method for implanting and injection rate first have to study the relevant nature of viscous crude, structure
With formation condition etc., according to different viscosity-reducing mechanisms, select optimal thinner.
In sum, although viscosity reduction agent is of a great variety, but it is narrower to generally use scope, a kind of thinner is only fitted
For a kind of viscous crude, finding of thinner brings huge trouble to exploitation.By structure and the performance of research emulsifying pour depressor
Relation find the emulsifying pour depressor that applicable scope is bigger, research finds, the content of each component of viscous crude determine crude oil with
The interaction of surfactant lipophilic group；The acid number of viscous crude is bigger on the content impact of Natural surfactant component in crude oil；
The main cause of reducing viscosity by emulsifying method narrow application range is the difference of viscous crude composition.According to the development history of thinner, natural polymer
Sub-thinner is only applicable in the drilling engineering of lower temperature or relatively lower salt content；Inorganic thinner heat resistance is poor, and
High-salinity drilling fluid does not has viscosity reduction effect；Polymerization thinner salt tolerant weather resistance does not also reach use demand, so needing
Want a kind of relatively low interfacial tension, anti-salt weatherability thinner weighing apparatus necessary.
Summary of the invention
The technical problem to be solved:, boundary poor for the polymerization thinner salt tolerant weather resistance prepared at present
Surface tension is big, the problem not reaching use demand, it is provided that a kind of changed by the gallic acid contained by acer ginnala leaf inside
Property, owing to gallic acid is natural aromatic ring material, by side chain nonhydrocarbon condensed ring long in phase cyclic structural unit polarity, with viscous crude
Resin and asphalt react, the linear structure unit simultaneously contained, reduce the crude oil high viscosity that causes of colloid, then pass through
Sulfonic introducing in 2-acrylamide-2-methyl propane sulfonic, is greatly improved thinner weatherability and resistance to salt action, effectively solves
Existing thinner salt tolerant weather resistance is poor, interfacial tension big, the problem not reaching use demand.
For solving above-mentioned technical problem, the present invention uses the technical scheme as described below to be:
(1) collect the acer ginnala leaf that drops, it is cleaned and naturally dries, at 65～80 DEG C, be dried 1～2h subsequently, be prepared into dry
Dry acer ginnala leaf, to its comminution by gas stream and sieve, is prepared into 45～70 mesh acer ginnala leaf granules, then 1:10 in mass ratio, will system
Standby acer ginnala leaf granule mixes with absolute ethyl alcohol and stirring, and under 200～300W, sonic oscillation processes 10～15min, then 65
～at 80 DEG C, it is heated to reflux 3～5h；
(2) after backflow to be heated completes, sucking filtration also collects filtrate, 1:5 in mass ratio, is mixed with filtrate stirring by chitosan, with
The airtight ageing of rear standing 8～10h, is prepared into modified ageing liquid, then 5:1 in mass ratio, modification is aged liquid and stirs with maleic anhydride
Mix mixing, after dissolving to be mixed, be placed at 65～70 DEG C rotation and be evaporated to the 1/5 of original volume, be prepared into mixed solution；
(3) count by weight, weigh respectively the mixed solution of 35～45 parts of above-mentioned preparations, 15～20 parts of sodium allylsulfonates, 5～
10 parts of 2-acrylamide-2-methyl propane sulfonics and 45～50 parts of deionized waters are placed in there-necked flask, stirring mixing 25～30min
After, it is placed on 65～80 DEG C of heating in water bath 25～30min；
(4) after heating in water bath completes, there-necked flask is led to nitrogen and gets rid of air, the most in a nitrogen atmosphere, to there-necked flask
Dropping and the quality 0.8mol/L ammonium persulfate solution such as 2-acrylamide-2-methyl propane sulfonic, control time for adding be 10～
15min；
(5) after being added dropwise to complete, at 65～70 DEG C of Heat preservations 2～3h, then it is placed on rotary evaporated to dryness at 65～80 DEG C,
Collect desciccate and it is milled, weatherability heavy crude thinner prepared by a kind of acer ginnala leaf resource can be prepared into.
Weatherability heavy crude thinner prepared by the present invention reaches 210 DEG C in temperature, and salinity is 72000mg L-1, regulation
Thinner concentration is 0.12%, and viscosity break ratio, up to 96.8%, stands 2h dehydration rate 93%.
The present invention is compared with additive method, and Advantageous Effects is:
(1) the weatherability heavy crude thinner maximum operation (service) temperature that prepared by the present invention is 0.12% up to 250 DEG C of viscosity reduction concentration, viscosity reduction
Rate is up to more than 96%；
(2) preparation process of the present invention is simple, environmental protection, environmentally safe.
Detailed description of the invention
First collect the acer ginnala leaf that drops, it is cleaned and naturally dries, at 65～80 DEG C, be dried 1～2h subsequently, system
Standby acer ginnala leaf be must be dried, to its comminution by gas stream and sieve, 45～70 mesh acer ginnala leaf granules, more in mass ratio 1 are prepared into:
10, the acer ginnala leaf granule of preparation is mixed with absolute ethyl alcohol and stirring, under 200～300W, sonic oscillation processes 10～15min,
3～5h it are heated to reflux again at 65～80 DEG C；After backflow to be heated completes, sucking filtration also collects filtrate, and 1:5 in mass ratio, by shell
Polysaccharide powder mixes with filtrate stirring, the most still aging 8～10h, is prepared into modified ageing liquid, then 5:1 in mass ratio, will change
Property ageing liquid and maleic anhydride stirring mix, after dissolving to be mixed, be placed at 65～70 DEG C to rotate and be evaporated to original volume
1/5, it is prepared into mixed solution；Count by weight, respectively weigh the mixed solution of 35～45 parts of above-mentioned preparations, 15～20 part third
Alkene sodium sulfonate, 5～10 parts of 2-acrylamide-2-methyl propane sulfonics and 45～50 parts of deionized waters are placed in there-necked flask, stirring
After mixing 25～30min, it is placed on 65～80 DEG C of heating in water bath 25～30min；After heating in water bath completes, to there-necked flask
Logical nitrogen gets rid of air, the most in a nitrogen atmosphere, to quality such as there-necked flask dropping and 2-acrylamide-2-methyl propane sulfonics
0.8mol/L ammonium persulfate solution, controlling time for adding is 10～15min；After being added dropwise to complete, it is incubated at 65～70 DEG C and adds
Heat 2～3h, then it is placed on rotary evaporated to dryness at 65～80 DEG C, collect desciccate and it is milled, one can be prepared into
Plant weatherability heavy crude thinner prepared by acer ginnala leaf resource.
Example 1
First collect the acer ginnala leaf that drops, it is cleaned and naturally dries, at 65 DEG C, be dried 1h subsequently, be prepared into dry tea bar
Mapler leaf, to its comminution by gas stream and sieve, is prepared into 45 mesh acer ginnala leaf granules, then 1:10 in mass ratio, will the Acer ginnala Maxim. of preparation
Leaf granule mixes with absolute ethyl alcohol and stirring, and under 200W, sonic oscillation processes 10min, then is heated to reflux 3h at 65 DEG C；To be added
After hot reflux completes, sucking filtration also collects filtrate, 1:5 in mass ratio, Chitosan powder is mixed with filtrate stirring, stands old subsequently
Change 8h, be prepared into modified ageing liquid, then 5:1 in mass ratio, modification be aged liquid and mix with maleic anhydride stirring, dissolving to be mixed
After, it is placed at 65 DEG C rotation and is evaporated to the 1/5 of original volume, be prepared into mixed solution；Count by weight, weigh 35 respectively
Part mixed solution of above-mentioned preparation, 20 parts of sodium allylsulfonates, 10 parts of 2-acrylamide-2-methyl propane sulfonics and 50 parts of deionized waters
It is placed in there-necked flask, after stirring mixing 25min, is placed on 65 DEG C of heating in water bath 25min；After heating in water bath completes, right
There-necked flask leads to nitrogen gets rid of air, the most in a nitrogen atmosphere, to there-necked flask dropping and 2-acrylamide-2-methyl-prop sulphur
The quality 0.8mol/L ammonium persulfate solutions such as acid, control time for adding is 10min；After being added dropwise to complete, at 65 DEG C of Heat preservations
2h, then it is placed on rotary evaporated to dryness at 65 DEG C, collect desciccate and it is milled, a kind of acer ginnala leaf can be prepared into
Weatherability heavy crude thinner prepared by resource.
Example 2
First collect the acer ginnala leaf that drops, it is cleaned and naturally dries, at 70 DEG C, be dried 1.5h subsequently, be prepared into dry tea
Bar mapler leaf, to its comminution by gas stream and sieve, is prepared into 60 mesh acer ginnala leaf granules, then 1:10 in mass ratio, will the tea bar of preparation
Mapler leaf granule mixes with absolute ethyl alcohol and stirring, and under 250W, sonic oscillation processes 12min, then is heated to reflux 4h at 70 DEG C；Treat
After being heated to reflux, sucking filtration also collects filtrate, 1:5 in mass ratio, Chitosan powder is mixed with filtrate stirring, stands subsequently
Ageing 9h, is prepared into modified ageing liquid, then 5:1 in mass ratio, modification is aged liquid and mixes with maleic anhydride stirring, to be mixed molten
Xie Hou, is placed at 67 DEG C rotation and is evaporated to the 1/5 of original volume, be prepared into mixed solution；Count by weight, weigh respectively
The mixed solution of 40 parts of above-mentioned preparations, 17 parts of sodium allylsulfonates, 8 parts of 2-acrylamide-2-methyl propane sulfonics and 47 parts of deionizations
Water is placed in there-necked flask, after stirring mixing 27min, is placed on 70 DEG C of heating in water bath 27min；After heating in water bath completes,
There-necked flask is led to nitrogen and gets rid of air, the most in a nitrogen atmosphere, to there-necked flask dropping and 2-acrylamide-2-methyl-prop
The quality 0.8mol/L ammonium persulfate solutions such as sulfonic acid, control time for adding is 12min；After being added dropwise to complete, add 67 DEG C of insulations
Hot 2h, then it is placed on rotary evaporated to dryness at 70 DEG C, collect desciccate and it is milled, a kind of Acer ginnala Maxim. can be prepared into
Weatherability heavy crude thinner prepared by leaf resource.
Example 3
First collect the acer ginnala leaf that drops, it is cleaned and naturally dries, at 80 DEG C, be dried 2h subsequently, be prepared into dry tea bar
Mapler leaf, to its comminution by gas stream and sieve, is prepared into 70 mesh acer ginnala leaf granules, then 1:10 in mass ratio, will the Acer ginnala Maxim. of preparation
Leaf granule mixes with absolute ethyl alcohol and stirring, and under 300W, sonic oscillation processes 15min, then is heated to reflux 5h at 80 DEG C；To be added
After hot reflux completes, sucking filtration also collects filtrate, 1:5 in mass ratio, Chitosan powder is mixed with filtrate stirring, stands old subsequently
Change 10h, be prepared into modified ageing liquid, then 5:1 in mass ratio, modification be aged liquid and mix with maleic anhydride stirring, to be mixed molten
Xie Hou, is placed at 70 DEG C rotation and is evaporated to the 1/5 of original volume, be prepared into mixed solution；Count by weight, weigh respectively
The mixed solution of 35 parts of above-mentioned preparations, 20 parts of sodium allylsulfonates, 10 parts of 2-acrylamide-2-methyl propane sulfonics and 45 parts of deionizations
Water is placed in there-necked flask, after stirring mixing 25min, is placed on 80 DEG C of heating in water bath 30min；After heating in water bath completes,
There-necked flask is led to nitrogen and gets rid of air, the most in a nitrogen atmosphere, to there-necked flask dropping and 2-acrylamide-2-methyl-prop
The quality 0.8mol/L ammonium persulfate solutions such as sulfonic acid, control time for adding is 15min；After being added dropwise to complete, add 70 DEG C of insulations
Hot 3h, then it is placed on rotary evaporated to dryness at 80 DEG C, collect desciccate and it is milled, a kind of Acer ginnala Maxim. can be prepared into
Weatherability heavy crude thinner prepared by leaf resource.
Claims (1)
1. the method that an acer ginnala leaf resource prepares weatherability heavy crude thinner, it is characterised in that concrete preparation process is:
(1) collect the acer ginnala leaf that drops, it is cleaned and naturally dries, at 65～80 DEG C, be dried 1～2h subsequently, be prepared into dry
Dry acer ginnala leaf, to its comminution by gas stream and sieve, is prepared into 45～70 mesh acer ginnala leaf granules, then 1:10 in mass ratio, will system
Standby acer ginnala leaf granule mixes with absolute ethyl alcohol and stirring, and under 200～300W, sonic oscillation processes 10～15min, then 65
～at 80 DEG C, it is heated to reflux 3～5h；
(2) after backflow to be heated completes, sucking filtration also collects filtrate, 1:5 in mass ratio, is mixed with filtrate stirring by chitosan, with
The airtight ageing of rear standing 8～10h, obtains ageing liquid, then 5:1 in mass ratio, is mixed with maleic anhydride stirring by ageing liquid, to be mixed
After dissolving, it is placed at 65～70 DEG C rotation and is evaporated to the 1/5 of original volume, obtain mixed solution；
(3) count by weight, weigh respectively the mixed solution of 35～45 parts of above-mentioned preparations, 15～20 parts of sodium allylsulfonates, 5～
10 parts of 2-acrylamide-2-methyl propane sulfonics and 45～50 parts of deionized waters are placed in there-necked flask, stirring mixing 25～30min
After, it is placed on 65～80 DEG C of heating in water bath 25～30min；
(4) after heating in water bath completes, there-necked flask is led to nitrogen and gets rid of air, the most in a nitrogen atmosphere, to there-necked flask
Dropping and the quality 0.8mol/L ammonium persulfate solution such as 2-acrylamide-2-methyl propane sulfonic, control time for adding be 10～
15min；
(5) after being added dropwise to complete, Heat preservation 2～3h at 65～70 DEG C, then be placed at 65～80 DEG C rotation be evaporated to
Dry, collect desciccate and it is milled, weatherability heavy crude thinner prepared by a kind of acer ginnala leaf resource can be prepared into.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610491716.5A CN106146738A (en) | 2016-06-29 | 2016-06-29 | A kind of method that acer ginnala leaf resource prepares weatherability heavy crude thinner |
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| CN201610491716.5A CN106146738A (en) | 2016-06-29 | 2016-06-29 | A kind of method that acer ginnala leaf resource prepares weatherability heavy crude thinner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142096A (en) * | 2017-06-14 | 2017-09-08 | 西南石油大学 | A kind of method that biomass auxiliary viscous crude self-catalysis modifies viscosity reduction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1414059A (en) * | 2002-08-21 | 2003-04-30 | 成都慧能科技开发有限责任公司 | Preparation method of tala well drilling liquid viscosity lowering agent |
| CN102093869A (en) * | 2011-01-06 | 2011-06-15 | 上海大学 | Preparation method for oil-soluble thickened oil hydrothermal catalytic cracking viscosity breaking agent |
| US20120152536A1 (en) * | 2010-12-17 | 2012-06-21 | Chevron U.S.A. Inc. | Heat generating system for enhancing oil recovery |
| CN102719234A (en) * | 2012-07-03 | 2012-10-10 | 上海工程技术大学 | Thickened oil viscosity depressant as well as preparation method and application thereof |
| CN104130756A (en) * | 2014-07-01 | 2014-11-05 | 青岛蓬勃石油技术服务有限公司 | High-temperature-resistant viscosity reducer for viscous oil and preparation method thereof |
-
2016
- 2016-06-29 CN CN201610491716.5A patent/CN106146738A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1414059A (en) * | 2002-08-21 | 2003-04-30 | 成都慧能科技开发有限责任公司 | Preparation method of tala well drilling liquid viscosity lowering agent |
| US20120152536A1 (en) * | 2010-12-17 | 2012-06-21 | Chevron U.S.A. Inc. | Heat generating system for enhancing oil recovery |
| CN102093869A (en) * | 2011-01-06 | 2011-06-15 | 上海大学 | Preparation method for oil-soluble thickened oil hydrothermal catalytic cracking viscosity breaking agent |
| CN102719234A (en) * | 2012-07-03 | 2012-10-10 | 上海工程技术大学 | Thickened oil viscosity depressant as well as preparation method and application thereof |
| CN104130756A (en) * | 2014-07-01 | 2014-11-05 | 青岛蓬勃石油技术服务有限公司 | High-temperature-resistant viscosity reducer for viscous oil and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 王中华等: "AMPS/AA/单宁酸接枝共聚物的合成与性能", 《精细石油化工进展》 * |
| 罗伟祥等: "《西北主要树种培育技术》", 31 August 2007 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142096A (en) * | 2017-06-14 | 2017-09-08 | 西南石油大学 | A kind of method that biomass auxiliary viscous crude self-catalysis modifies viscosity reduction |
| CN107142096B (en) * | 2017-06-14 | 2020-01-14 | 西南石油大学 | Biomass-assisted thickened oil autocatalytic modification viscosity reduction method |
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