CN103980874B - Guar gum fracturing fluid breaker, and preparation method and application thereof - Google Patents
Guar gum fracturing fluid breaker, and preparation method and application thereof Download PDFInfo
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- CN103980874B CN103980874B CN201410190829.2A CN201410190829A CN103980874B CN 103980874 B CN103980874 B CN 103980874B CN 201410190829 A CN201410190829 A CN 201410190829A CN 103980874 B CN103980874 B CN 103980874B
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
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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
- C09K8/60—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
- C09K8/90—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
- C09K8/905—Biopolymers
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/24—Bacteria or enzyme containing gel breakers
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Abstract
The invention discloses a guar gum fracturing fluid breaker, and a preparation method and an application thereof, and belongs to the field of oilfield fracturing fluids. The preparation method comprises the following steps: adding a solvent to a reaction kettle or a stirrer; starting the stirrer, adding amylase, and reacting for 1-30min; slowly adding oxidase, and reacting for 1-30min; slowly adding mannanase, and reacting for 1-30min; adding an activator, and reacting for 10-60min; adding cellulase, and reacting for 10-60min. The guar gum fracturing fluid breaker is mainly used in oilfield fracturing, and the consumption of the guar gum fracturing fluid breaker is 0.01-3% of the total amount of a fracturing fluid. The guar gum fracturing fluid breaker can overcome the halfway breaking, much residues and damages of barium and strontium precipitates of generated sulfate radicals in stratums to the stratums of breaking using ammonium persulfate, and can also solve the corrosion of ammonium persulfate to pipelines and equipment.
Description
Technical field
The present invention relates to a kind of guar gum fracturing fluid gel breaker and its preparation method and application, belongs to oil field fracturing fluid field.
Background technology
The gel breaker that guar gum fracturing fluid is usually used is Ammonium persulfate., as Ammonium persulfate. oxidisability is stronger, can be corroded
Pipe-line equipment, under low temperature, the ability of its release oxygen is poor, it is impossible to makes guar gum fracturing fluid break glue completely, can cause residue to stratum
Injury；Additionally precipitation can be produced with the barium strontium on stratum because of the sulfate radical produced after oxidation；Ammonium persulfate. can also cause equipment pipe
The etching problem of line.
The content of the invention
To solve the problems, such as that clean fracturing fluid breaks glue, it is an object of the invention to provide a kind of a kind of broken glue thoroughly guar gum pressure
Split liquid gel breaker and its preparation method and application, it is ensured that the effect of pressure break.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：
A kind of guar gum fracturing fluid gel breaker, is made up of following mass fraction formula：
The amylase is that α-amylase, beta amylase, the one or any ratio of gamma amylase are two or more.
Described oxidase is that catalase, one kind of superoxide dismutase or arbitrary proportion are two or more.
The mannase is that acidproof, alkaline-resisting, neutral β-Mannannase is a kind of or arbitrary proportion is two or more.
The activator is tetraacetyl ethylene diamine.
The cellulase is mainly a kind of by circumscribed 1,4 beta-glucanase, Endo-β-glucanase and beta-glucosidase or appoints
Meaning ratio is two or more.
Described solvent is that any one of water, methanol, ethanol or arbitrary proportion are two or more.
The preparation method of guar gum pressing crack gum breaker, comprises the following steps：
(1) plus 5-80 mass parts solvent in reactor or blender；
(2) turn on agitator, adds the amylase of 0.1-25 parts, reacts 1-30 minutes；
(3) 1-20 part oxidase is slowly added to in reactor or blender, react 1-30 minutes；
(4) 1-25 part mannases are slowly added to in reactor or blender, react 1-30 minutes；
(5) activator of 1-10 parts is added in reactor or blender, 10-60 minutes are reacted；
(6) cellulase of 0.1-10 parts is added in reactor or blender, 10-60 minutes are reacted.
A kind of guar gum fracturing fluid gel breaker is applied on the broken glue of oil field fracturing fluid.
0.01-3% of the usage amount of described guar gum fracturing fluid gel breaker for fracturing fluid gross mass.
The invention has benefit that：Guar gum fracturing fluid gel breaker, can overcome the broken glue of Ammonium persulfate. not thorough, residue
It is many, and barium strontium precipitation causes formation damage during generation sulfate radical is easy to stratum, while Ammonium persulfate. can also be solved to being concerned about
The etching problem of equipment.
Specific embodiment
Make specific introduction to the present invention below in conjunction with specific embodiment.
First, guar gum fracturing fluid gel breaker composition
A kind of guar gum fracturing fluid gel breaker, is made up of following mass fraction：
Embodiment 1：
Solvent：60 parts (wherein water, methanol, ethanol are respectively 20 parts, 30 parts, 10 parts),
Oxidase：10 parts (wherein catalase, superoxide dismutase are respectively 10 parts, 0 part),
Amylase：0.1 part (wherein α-amylase, beta amylase, gamma amylase are respectively 0.1 part, 0 part, 0 part),
Mannase：15 parts (wherein acidproof, alkaline-resisting, neutral β-Mannannase is respectively 15 parts, 0 part, 0 part),
Tetraacetyl ethylene diamine：5 parts,
Cellulase：9.9 parts (wherein circumscribed 1,4 beta-glucanase, Endo-β-glucanase, beta-glucosidase are respectively
7.9 parts, 2 parts, 0 part).
Embodiment 2：
Solvent：70 parts (wherein water, methanol, ethanol are respectively 60 parts, 10 parts, 0 part),
Amylase：5 parts (wherein α-amylase, beta amylase, gamma amylase are respectively 4 parts, 0 part, 1 part),
Oxidase：5 parts (wherein catalase, superoxide dismutase are respectively 5 parts, 0 part),
Mannase：10 parts (wherein acidproof, alkaline-resisting, neutral β-Mannannase is respectively 5 parts, 0 part, 5 parts),
Tetraacetyl ethylene diamine：5 parts,
Cellulase：5 parts (wherein circumscribed 1,4 beta-glucanase, Endo-β-glucanase, beta-glucosidase are respectively 5 parts,
0 part, 0 part).
Embodiment 3：
Solvent：75 parts (wherein water, methanol, ethanol are respectively 75 parts, 0 part, 0 part),
Amylase：5 parts (wherein α-amylase, beta amylase, gamma amylase are respectively 4 parts, 0 part, 1 part),
Oxidase：5 parts (wherein catalase, superoxide dismutase are respectively 0 part, 5 parts),
Mannase：5 parts (wherein acidproof, alkaline-resisting, neutral β-Mannannase is respectively 5 parts, 0 part, 0 part),
Tetraacetyl ethylene diamine：5 parts,
Cellulase：5 parts (wherein circumscribed 1,4 beta-glucanase, Endo-β-glucanase, beta-glucosidase are respectively 5
Part, 0 part, 0 part).
Embodiment 4：
Solvent：50 parts (wherein water, methanol, ethanol are respectively 50 parts, 0 part, 0 part),
Oxidase：10 parts (wherein catalase, superoxide dismutase are respectively 0 part, 10 parts),
Amylase：5 parts (wherein α-amylase, beta amylase, gamma amylase are respectively 5 parts, 0 part, 0 part),
Mannase：20 parts (wherein acidproof, alkaline-resisting, neutral β-Mannannase is respectively 10 parts, 5 parts, 5 parts),
Tetraacetyl ethylene diamine：10 parts,
Cellulase：5 parts (wherein circumscribed 1,4 beta-glucanase, Endo-β-glucanase, beta-glucosidase are respectively 0 part,
0 part, 5 parts).
Embodiment 5：
Solvent：55 parts (wherein water, methanol, ethanol are respectively 0 part, 0 part, 55 parts),
Amylase：10 parts (wherein α-amylase, beta amylase, gamma amylase are respectively 5 parts, 5 parts, 0 part),
Oxidase：5 parts (wherein 5 parts of catalase, 0 part of superoxide dismutase),
Mannase：25 parts (wherein acidproof, alkaline-resisting, neutral β-Mannannase is respectively 20 parts, 0 part, 5 parts),
Tetraacetyl ethylene diamine：4.9 parts,
Cellulase：0.1 part (wherein circumscribed 1,4 beta-glucanase, Endo-β-glucanase, beta-glucosidase are respectively
0.1 part, 0 part, 0 part).
Embodiment 6：
Solvent：45 parts (wherein water, methanol, ethanol are respectively 45 parts, 0 part, 0 part),
Amylase：3 parts (wherein α-amylase, beta amylase, gamma amylase are respectively 0 part, 3 parts, 0 part),
Oxidase：10 parts (wherein 10 parts of catalase, 0 part of superoxide dismutase),
Mannase：25 parts (wherein acidproof：It is alkaline-resisting：Neutral β-Mannannase proportioning is 3:5:7),
Tetraacetyl ethylene diamine：10 parts,
Cellulase：7 parts (wherein circumscribed 1,4 beta-glucanase, Endo-β-glucanase, beta-glucosidase are respectively 0 part,
0 part, 7 parts).
2nd, the preparation method of guar gum fracturing fluid gel breaker is comprised the following steps：
(1) plus 5-80 mass parts solvent in reactor or blender；
(2) turn on agitator, adds the amylase of 0.1-25 parts, reacts 1-30 minutes；
(3) 1-20 part oxidase is slowly added to in reactor or blender, react 1-30 minutes；
(4) 1-25 part mannases are slowly added to in reactor or blender, react 1-30 minutes；
(5) activator of 1-10 parts is added in reactor or blender, 10-60 minutes are reacted；
(6) cellulase of 0.1-10 parts is added in reactor or blender, 10-60 minutes are reacted.
3rd, guar gum fracturing fluid gel breaker application example
The guar gum fracturing fluid gel breaker of the present invention is mainly used on the broken glue of oil field clean fracturing fluid, its compound method
For：
The guar gum and modifyed guar gum of 0.2-0.4% are prepared, Borax or organic borate cross-linker is subsequently adding so as to which becoming can
The frozen glue hung with Glass rod, is added the guar gum fracturing fluid gel breaker of fracturing fluid total amount 0.01-3%, can make the product of breaking glue solution
Family name's viscosity is less than 5mpa.s.
By the guar gum fracturing fluid gel breaker in embodiment 1-6 according to《Fracturing fluid property evaluation methodology》(SY/T5107-
2007) tested, experimental result is shown in Table 1.
1 gel breaking test data of table
Result of the test in laboratory not only breaks glue thoroughly, and broken glue speed.
In sum, guar gum fracturing fluid gel breaker of the invention, Ammonium persulfate. can be overcome to break, and glue is not thorough, and residue is more,
And produce sulfate radical and be easy to barium strontium precipitation in stratum and cause formation damage, while Ammonium persulfate. can also be solved for pipeline sets
Standby etching problem.
It should be noted that above-described embodiment the invention is not limited in any way, all employing equivalents or equivalent change
The technical scheme obtained by the mode changed, all falls within protection scope of the present invention.
Claims (10)
1. a kind of guar gum fracturing fluid gel breaker, it is characterised in that：It is made up of following mass fraction formula：
2. guar gum pressing crack gum breaker as claimed in claim 1, it is characterised in that：The amylase is α-amylase, β-starch
The one or any ratio of enzyme, gamma amylase is two or more.
3. guar gum pressing crack gum breaker as claimed in claim 1, it is characterised in that：Described oxidase is catalase, surpasses
One kind or arbitrary proportion of superoxide dismutase is two or more.
4. guar gum pressing crack gum breaker as claimed in claim 1, it is characterised in that：The mannase for it is acidproof, alkaline-resisting, in
One kind or arbitrary proportion of property 'beta '-mannase is two or more.
5. guar gum pressing crack gum breaker as claimed in claim 1, it is characterised in that：The activator is tetraacetyl ethylene diamine.
6. guar gum pressing crack gum breaker as claimed in claim 1, it is characterised in that：The cellulase is mainly gathered by circumscribed β-Portugal
One kind or arbitrary proportion of carbohydrase, Endo-β-glucanase and beta-glucosidase is two or more.
7. guar gum pressing crack gum breaker as claimed in claim 1, it is characterised in that：Described solvent be water, methanol, the one of ethanol
Plant or arbitrary proportion is two or more.
8. the preparation method of guar gum pressing crack gum breaker as claimed in claim 1, it is characterised in that：Comprise the following steps：
(1) plus 5-80 mass parts solvent in reactor or blender；
(2) turn on agitator, adds the amylase of 0.1-25 parts, reacts 1-30 minutes；
(3) 1-20 part oxidase is slowly added to in reactor or blender, react 1-30 minutes；
(4) 1-25 part mannases are slowly added to in reactor or blender, react 1-30 minutes；
(5) activator of 1-10 parts is added in reactor or blender, 10-60 minutes are reacted；
(6) cellulase of 0.1-10 parts is added in reactor or blender, 10-60 minutes are reacted.
9. a kind of guar gum fracturing fluid gel breaker is applied on the broken glue of oil field fracturing fluid according to claim 1.
10. guar gum fracturing fluid gel breaker according to claim 9 is applied on the broken glue of oil field fracturing fluid, it is characterised in that
0.01-3% of the usage amount of described guar gum fracturing fluid gel breaker for fracturing fluid gross mass.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106350054A (en) * | 2016-08-23 | 2017-01-25 | 烟台智本知识产权运营管理有限公司 | Oil field fracturing fluid flow back liquid composite gel breaker and preparation method thereof |
| CN111187608A (en) * | 2020-01-13 | 2020-05-22 | 西安石油大学 | Enzyme seepage agent for improving guar gum fracturing fluid performance and application thereof |
| CN111704263A (en) * | 2020-05-19 | 2020-09-25 | 陕西省石油化工研究设计院 | Resource utilization method of water-based fracturing flowback fluid |
| CN111574988A (en) * | 2020-05-19 | 2020-08-25 | 陕西省石油化工研究设计院 | Guar gum clean fracturing fluid for oil well and preparation method thereof |
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| CN101495595A (en) * | 2006-05-19 | 2009-07-29 | 赫尔克里士公司 | Oxidized guar for oilfield servicing fluids |
| CN101781552A (en) * | 2009-12-21 | 2010-07-21 | 陕西延长石油(集团)有限责任公司研究院 | Bio-enzyme gel breaker and technique for water-based guargum fracturing gel breaking with the same |
| CN102373037A (en) * | 2010-08-10 | 2012-03-14 | 中国石油化工集团公司 | Novel biological blockage removing solution for well completion, and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101608113A (en) * | 2009-06-30 | 2009-12-23 | 东营盛世石油科技有限责任公司 | A kind of prescription that utilizes the biological enzyme formulation preparing fracturing fluid |
| CN102286275A (en) * | 2011-07-12 | 2011-12-21 | 西安石油大学 | Biological enzyme pressing crack gum breaker and application thereof |
| CN103122344A (en) * | 2011-11-18 | 2013-05-29 | 陕西延长油田生物工程有限公司 | Process for producing gel-breaking bio-enzyme by fed-batch fermentation |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101495595A (en) * | 2006-05-19 | 2009-07-29 | 赫尔克里士公司 | Oxidized guar for oilfield servicing fluids |
| CN101781552A (en) * | 2009-12-21 | 2010-07-21 | 陕西延长石油(集团)有限责任公司研究院 | Bio-enzyme gel breaker and technique for water-based guargum fracturing gel breaking with the same |
| CN102373037A (en) * | 2010-08-10 | 2012-03-14 | 中国石油化工集团公司 | Novel biological blockage removing solution for well completion, and production method thereof |
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