CN106496453A - Composite modified precrosslink profile control agent of mushroom bran base and preparation method thereof - Google Patents

Composite modified precrosslink profile control agent of mushroom bran base and preparation method thereof Download PDF

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Publication number
CN106496453A
CN106496453A CN201610995672.XA CN201610995672A CN106496453A CN 106496453 A CN106496453 A CN 106496453A CN 201610995672 A CN201610995672 A CN 201610995672A CN 106496453 A CN106496453 A CN 106496453A
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China
Prior art keywords
mushroom bran
control agent
profile control
precrosslink
composite modified
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CN201610995672.XA
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Inventor
张乃艳
张智
赵文韬
曾德智
喻智明
何其垚
蔡乐乐
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Southwest Petroleum University
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Southwest Petroleum University
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F289/00Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F251/00Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504Compositions based on water or polar solvents
    • C09K8/506Compositions based on water or polar solvents containing organic compounds
    • C09K8/508Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/512Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The invention belongs in petroleum industry precrosslink profile control agent synthesis, be more particularly to applied to composite modified precrosslink profile control agent of a kind of mushroom bran base of high temperature and high salinity reservoir and preparation method thereof.Acrylic acid degree of neutralization is adjusted to 70% with 20wt%NaOH, mushroom bran air slaking good for proportioning are ground to 200 mesh, deionized water:Mushroom bran=5:1 gelatinizing in 60 DEG C of water-baths, acrylamide, cross-linking agent, attapulgite and photosensitizer and acrylic acid after neutralization, the mushroom bran of gelatinizing are stirred into dispersion phase again, 15min is reacted in ultraviolet radiation instrument, high-molecular copolymer after plastic methanol soaks 4 hours and removes hydrone, vacuum drying, crushing at 100 DEG C, obtain a kind of composite modified precrosslink profile control agent of mushroom bran base, profile control agent overcome high salinity stratum water absorption rate low, high-temperature stratum water-retaining property and intensity difference, expand too fast the shortcomings of, while effectively make use of the mushroom bran resource of waste.

Description

Composite modified precrosslink profile control agent of mushroom bran base and preparation method thereof
Technical field
The present invention relates in petroleum industry precrosslink profile control agent synthesis, be applied particularly to high temperature and high salinity reservoir Composite modified precrosslink profile control agent of a kind of mushroom bran base and preparation method thereof.
Technical background
Generally existing well water problem in water flooding, in long-term waterflooding extraction, the anisotropism on stratum Be further exacerbated by, current predominant pathway is defined in reservoir, especially the generation of preferential path and macropore, cause to inject Water swept volume is low, and displacement efficiency is low, has a strong impact on reservoir water drive development effectiveness.Precrosslink resin particle is a kind of granule profile control Agent, imbibition behind the injection stratum of ground, is detained in the earth formation, blocks high permeability zone.The resin particle that oil field adopts at present More is homopolymer, but in place of product all has some shortcomings, after such as absorbing water insufficient strength, water absorption low, in high mineralization Degree stratum water absorption low, high-temperature stratum water absorbing and retaining properties poor, water suction after expansion rate cause soon very much inject apart from limited.
Mushroom bran is a kind of abundant living resources, mainly comprising native cellulose and hemicellulose 10~30%, protein 6 ~13%, crude fat 1~5%, however, waste mushroom leftover only sub-fraction is used for organic fertilizer and fertilizers for potted flowers, most of mushroom bran It is simply discarded or burns, causes the waste of resource and the pollution of environment.
Content of the invention
In order to overcome the defect of above-mentioned profile control agent, it is an object of the invention to provide a kind of mushroom bran base is composite modified to pre-pay joint debugging Agent and preparation method thereof is cutd open, the mushroom bran resource of waste while obtained profile control agent meets drawbacks described above, is effectively make use of.
The present invention adds each component reagent, polyreaction to complete on ultraviolet radioactive instrument, technology with deionized water as solvent Scheme is:
(1) a certain amount of acrylic acid is weighed, right in being adjusted in ice-water bath with the NaOH solution that mass concentration is 20% To 70%;
(2) mushroom bran equivalent to acrylic acid quality 120%~260% in step (1) is weighed, is deionization in mass ratio Water:Mushroom bran=5:1 stirs gelatinizing 60min in 60 DEG C of water-bath;
(3) weigh equivalent to the acrylamide of acrylic acid quality 150%~250% in step (1), 1.75%~3% Cross-linking agent, 0.8%~4.5% initiator, 1.2%~3.6% photosensitizer, 85%~165% attapulgite, Yi Jibu Suddenly the pre-reaction thing of (1) and step (2) stirs in a reservoir and becomes dispersion phase;
(4) reactant in container is put into radiation 15min in ultraviolet radiation instrument carries out macromolecular polymerization reaction;
(5) jello after above-mentioned copolymerization is shredded, is soaked 4 hours with methanol and remove hydrone, vacuum is done at 100 DEG C Dry 48h, then attrition grinding.
The cross-linking agent, N, N '-methylene-bisacrylamide, which has hydrophilic group amide groups CONHR, due to the base Group is non-polar group, and is stronger hydrophilic group, therefore with the cross-linking agents after, not only intensity increases gel, while Water absorption and salt tolerance have also obtained further improving.
The attapulgite is the clay mineral of magnesium silicate containing Shuifu County with chain layer structure, has duct inside its monocrystalline Structure and huge specific area, are a kind of alumina magnesia silicates containing Shuifu County with distinct layer chain structure, can be used as needle-like Or fibrous nano filler;
The photosensitizer is benzil dimethyl ketal, is caused with ultraviolet irradiation, greatly reduces the response time, improves effect Rate.
Beneficial effect of the present invention:
A kind of composite modified precrosslink profile control agent of mushroom bran base is developed using discarded mushroom bran resource, the profile control agent overcomes On high salinity stratum water absorption rate low, high-temperature stratum water-retaining property and intensity difference, expand too fast the shortcomings of.
Specific embodiment
Profile control agent rock core flowing experiment is according to oil and gas industry standard SY/T5590 2004《Performance of profile modification is evaluated Method》With SY/T6379 1998《Granular profile control agent method of evaluating performance》, commented using artificial fill out sand tube list rock core flowing experiment Valency, sealing ratiod, breakthrough pressure and residual resistance factor (REF).Evaluate water suction, inhale according to national standard GB/T 11547-2008 Salt performance, calculating formula are Q=(M2-M1)/M1, in formula:Q is pick up, %;M2Quality after for imbibition, g;M1For dried Quality, g;According to standard GB/T 1040-79 valence, calculating formula is ε=(G-G0)/G0, in formula:ε is extension at break Rate, %;G0For the original graticule distance of sample, cm;G is test specimen fracture markers linear distance, cm.
The present invention is described in detail with reference to the present embodiment:
Embodiment 1
Composite modified precrosslink profile control agent of mushroom bran base and preparation method thereof is comprised the following steps:
(1) weigh the acrylic acid of 0.8g, in being adjusted in ice-water bath with the NaOH solution that mass fraction is 20% right to 70%;
(2) mushroom bran for weighing 1.2g (equivalent to acrylic acid 150%), is deionized water in mass ratio:Mushroom bran=5:1 Gelatinizing 60min is stirred in 60 DEG C of water-bath;
(3) weigh 1.6 acrylamide (equivalent to acrylic acid 200%), 15mg cross-linking agent (equivalent to acrylic acid plus Amount 1.88%), the initiator of 13mg (equivalent to acrylic acid 1.63%), 16mg photosensitizer (equivalent to acrylic acid 2%), the attapulgite of 0.76g is (equivalent to acrylic acid 95%), then by the pre-reaction thing of step (1) and step (2) in container In stir and become dispersion phase;
(4) reactant in container is put into radiation 15min in ultraviolet radiation instrument carries out macromolecular polymerization reaction;
(5) jello after above-mentioned copolymerization is shredded, is soaked 4 hours with methanol and remove hydrone, vacuum is done at 100 DEG C Dry 48h, then attrition grinding.
The mushroom bran is starch 10%, straw 5%, corn cob 8%, wood sawdust 65%, Testa oryzae 12%, through natural air drying, It is ground to the mixture of 200 mesh;
The cross-linking agent is N, N '-methylene-bisacrylamide;
The attapulgite is the clay mineral of magnesium silicate containing Shuifu County with chain layer structure;
The initiator is Ammonium persulfate.;
The photosensitizer is benzil dimethyl ketal.
1 embodiment of table, 1 profile control agent evaluation result
Embodiment 2
Composite modified precrosslink profile control agent of mushroom bran base and preparation method thereof is comprised the following steps:
(1) weigh the acrylic acid of 0.6g, in being adjusted in ice-water bath with the NaOH solution that mass fraction is 20% right to 70%;
(2) mushroom bran for weighing 1.32g (equivalent to acrylic acid 220%), is deionized water in mass ratio:Mushroom bran=5:1 Gelatinizing 60min is stirred in 60 DEG C of water-bath;
(3) weigh 1.44 acrylamide (equivalent to acrylic acid 240%), 18mg cross-linking agent (equivalent to acrylic acid Dosage 3%), the initiator of 15mg (equivalent to acrylic acid 2.5%), 9mg photosensitizer (equivalent to acrylic acid 1.5%), the attapulgite of 1.2g (equivalent to acrylic acid 200%), then the pre-reaction thing of step (1) and step (2) is being held Stir in device and become dispersion phase;
(4) reactant in container is put into radiation 15min in ultraviolet radiation instrument carries out macromolecular polymerization reaction;
(5) jello after above-mentioned copolymerization is shredded, is soaked 4 hours with methanol and remove hydrone, vacuum is done at 100 DEG C Dry 48h, then attrition grinding.
The mushroom bran is starch 10%, straw 5%, corn cob 8%, wood sawdust 65%, Testa oryzae 12%, through natural air drying, It is ground to the mixture of 200 mesh;
The cross-linking agent is N, N '-methylene-bisacrylamide;
The attapulgite is the clay mineral of magnesium silicate containing Shuifu County with chain layer structure;
The initiator is Ammonium persulfate.;
The photosensitizer is benzil dimethyl ketal.
2 embodiment of table, 2 profile control agent evaluation result
Embodiment 3
Composite modified precrosslink profile control agent of mushroom bran base and preparation method thereof is comprised the following steps:
(1) weigh the acrylic acid of 1.0g, with the NaOH solution that mass fraction is 20% ice-water bath regulation in right to 70%;
(2) mushroom bran for weighing 1.8g (equivalent to acrylic acid 180%), is deionized water in mass ratio:Mushroom bran=5:1 Gelatinizing 60min is stirred in 60 DEG C of water-bath;
(3) weigh 1.7g acrylamide (equivalent to acrylic acid 170%), 20mg cross-linking agent (equivalent to acrylic acid Dosage 2%), the initiator of 30mg (equivalent to acrylic acid 3%), 25mg photosensitizer (equivalent to acrylic acid 2.5%), The attapulgite of 1.6g (equivalent to acrylic acid 160%), then the pre-reaction thing of step (1) and step (2) is stirred in a reservoir Mix;
(4) reactant in container is put into radiation 15min in ultraviolet radiation instrument carries out macromolecular polymerization reaction;
(5) jello after above-mentioned copolymerization is shredded, is soaked 4 hours with methanol and remove hydrone, vacuum is done at 100 DEG C Dry 48h, then attrition grinding.
The mushroom bran is starch 10%, straw 5%, corn cob 8%, wood sawdust 65%, Testa oryzae 12%, through natural air drying, It is ground to the mixture of 200 mesh;
The cross-linking agent is N, N '-methylene-bisacrylamide;
The attapulgite is the clay mineral of magnesium silicate containing Shuifu County with chain layer structure;
The initiator is Ammonium persulfate.;
The photosensitizer is benzil dimethyl ketal.
3 embodiment of table, 3 profile control agent evaluation result
High salinity stratum water absorption rate height, water-retaining property and intensity be can be seen that from the profile control agent evaluation result of above example Performance is good, and speed of expansion is moderate.

Claims (5)

1. the composite modified precrosslink profile control agent of mushroom bran base, it is characterised in that by following preparation method gained, preparation method include with Lower step:
(1) weigh a certain amount of acrylic acid, in being adjusted in ice-water bath with the NaOH solution that mass concentration is 20% right to 70%;
(2) mushroom bran equivalent to acrylic acid quality 120%~260% in step (1) is weighed, is deionized water in mass ratio:Bacterium Bran=5:1 stirs gelatinizing 60min in 60 DEG C of water-bath;
(3) weigh equivalent to the acrylamide of acrylic acid quality 150%~250% in step (1), 1.75%~3% crosslinking Agent, 0.8%~4.5% initiator, 1.2%~3.6% photosensitizer, 85%~165% attapulgite, and step (1) stir in a reservoir and become dispersion phase with the pre-reaction thing of step (2);
(4) reactant in container is put into radiation 15min in ultraviolet radiation instrument carries out macromolecular polymerization reaction;
(5) jello after above-mentioned copolymerization is shredded, is soaked 4 hours with methanol and remove hydrone, be vacuum dried at 100 DEG C 48h, then attrition grinding.
2. the composite modified precrosslink profile control agent of mushroom bran base according to claim 1, it is characterised in that the mushroom bran is by following Raw material is constituted according to mass ratio:Starch 10%, straw 5%, corn cob 8%, wood sawdust 65% and Testa oryzae 12%, raw material is through certainly So air-dry, be ground to 200 mesh.
3. the composite modified precrosslink profile control agent of mushroom bran base according to claim 1, it is characterised in that the cross-linking agent is N, N '-methylene-bisacrylamide, molecular formula is:
4. the composite modified precrosslink profile control agent of mushroom bran base according to claim 1, it is characterised in that the initiator was Ammonium sulfate.
5. the composite modified precrosslink profile control agent of mushroom bran base according to claim 1, it is characterised in that the photosensitizer is benzene Even acyl dimethyl ketal.
CN201610995672.XA 2016-11-12 2016-11-12 Composite modified precrosslink profile control agent of mushroom bran base and preparation method thereof Pending CN106496453A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109678152A (en) * 2019-01-08 2019-04-26 惠州学院 The method that mushroom bran prepares high adsorption porous active carbon

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102504110A (en) * 2011-10-21 2012-06-20 吉林农业大学 Method for preparing high absorbent resin material with fungus chaff
CN104046343A (en) * 2013-03-12 2014-09-17 中国石油化工股份有限公司 High temperature resistant pre-crosslinked granular profile control agent and preparation method and application thereof
CN104087275A (en) * 2014-07-14 2014-10-08 中国石油大学(华东) High-temperature-resistant and high-salt-resistant fine gel particle as profile control agent as well as preparation method and application of fine gel particle
CN104961863A (en) * 2015-06-25 2015-10-07 武汉工程大学 Method for preparing polysaccharide biogum polymer gel profile control agent

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102504110A (en) * 2011-10-21 2012-06-20 吉林农业大学 Method for preparing high absorbent resin material with fungus chaff
CN104046343A (en) * 2013-03-12 2014-09-17 中国石油化工股份有限公司 High temperature resistant pre-crosslinked granular profile control agent and preparation method and application thereof
CN104087275A (en) * 2014-07-14 2014-10-08 中国石油大学(华东) High-temperature-resistant and high-salt-resistant fine gel particle as profile control agent as well as preparation method and application of fine gel particle
CN104961863A (en) * 2015-06-25 2015-10-07 武汉工程大学 Method for preparing polysaccharide biogum polymer gel profile control agent

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109678152A (en) * 2019-01-08 2019-04-26 惠州学院 The method that mushroom bran prepares high adsorption porous active carbon

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