CN103911137A - Preparation method and application of crosslinking gel breaker used for guar gum fracturing fluid - Google Patents
Preparation method and application of crosslinking gel breaker used for guar gum fracturing fluid Download PDFInfo
- Publication number
- CN103911137A CN103911137A CN201410103741.2A CN201410103741A CN103911137A CN 103911137 A CN103911137 A CN 103911137A CN 201410103741 A CN201410103741 A CN 201410103741A CN 103911137 A CN103911137 A CN 103911137A
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- China
- Prior art keywords
- gel breaker
- fracturing fluid
- guar gum
- preparation
- linking agent
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C09K8/685—Compositions based on water or polar solvents containing organic compounds containing cross-linking agents
-
- 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
- C09K8/665—Compositions based on water or polar solvents containing inorganic compounds
-
- 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
- C09K8/887—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- 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
- C09K2208/26—Gel breakers other than bacteria or enzymes
Abstract
The invention discloses a preparation method and an application of a crosslinking gel breaker used for a guar gum fracturing fluid, a synthesis product has the cross-linking agent effect and gel breaking and hydration effect of the guar gum fracturing fluid, so that one agent-two functions can be realized. The preparation comprises the following steps: adding water in a reaction vessel, controlling the reaction temperature at 30 DEG C; adding a cross-linking agent in the reaction vessel for reacting for 30 minutes; then adding the fracturing fluid and reacting for 30 minutes; adding enzyme, and reacting for 3 hours at the temperature scope of 20-50 DEG C. The crosslinking gel breaker is mainly used on oil field fracturing, the application amount accounts for 0.05-0.6% of pressing crack liquid total amount. The method combines the cross-linking agent and gel breaker as one, the crosslinking effect is good, the fracturing sand-carrying performance is stable, the gel can be thoroughly broken, the price is reasonable, no corrosion is generated, influence of a lot of coexisted salts can be avoided; various components in the product are complementary, so that usage of crosslinking tank car can be saved, and more than 2000 Yuan can be directly saved each well.
Description
Technical field
The present invention relates to the preparation of the crosslinked gel breaker of a kind of organic boron, be specifically related to the preparation method of a kind of guar gum fracturing fluid linking agent and gel breaker, belong to oilfield chemistry fracturing liquid field.
Background technology
The linking agent that guar gum fracturing fluid uses has: borax, organic boron, organic titanium and zirconium crosslink agent,
Return in the broken glue technology of discharge opeing at oil field fracturing fluid, conventionally adopt oxygenant, enzyme, acid to complete the broken glue of aquation of fracturing liquid anti-drain.
Be subject to the restriction of the factors such as traditional work, linking agent and gel breaker are all supply and apply with two kinds of products, cause great trouble to rig-site utilization.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide the preparation method of a kind of guar gum fracturing fluid with crosslinked gel breaker, not only the crosslinked grittiness of taking can be good for this crosslinked gel breaker, and broken glue thoroughly, coexist the in a large number impact of salt of reasonable price, non-corrosiveness and not being subject to, realize the dual-purpose effect of potion.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A preparation method for crosslinked gel breaker for guar gum fracturing fluid, is characterized in that, comprises the following steps:
(1) water that adds 10-30 mass parts, in reactor, is controlled temperature of reaction 30 and is spent, airtight nitrogen replacement air, control pressure 0.1-0.3MPa;
(2) turn on agitator, to the linking agent that slowly adds 50-80 mass parts in reactor, reacts 30 minutes;
(3) to the gel breaker that adds 0-3 mass parts in reactor, react 30 minutes;
(4) to the enzyme that adds 0.1-5 part mass parts in reactor, 20-50 degree scope reaction 3 hours.
Described linking agent is organic borate cross-linker or organic boron zirconium cross linking agent.
Described gel breaker is ammonium persulphate or the Potassium Persulphate of selling on market, and product is industrial goods.
Described enzyme is mannase or superoxide-dismutase.
Described guar gum fracturing fluid is with crosslinked gel breaker in the time that the crosslinked broken glue of oil field fracturing fluid uses, and usage quantity is the 0.05-0.6% of fracturing liquid total mass.
Usefulness of the present invention is: two products that linking agent and gel breaker are affected each other unite two into one, and reach cross-linking effect good, and pressure break is taken sand stable performance, and broken glue is thorough, reasonable price, coexist the in a large number impact of salt of non-corrosiveness and not being subject to; The various compositions that contain in product complement one another, and can save the use of crosslinked tank car, and every well time direct saving is more than 2000 yuan.
Embodiment
Below in conjunction with specific embodiment, the present invention is done to concrete introduction.
One, prepare crosslinked gel breaker for guar gum fracturing fluid
Linking agent is organic borate cross-linker or organic boron zirconium cross linking agent 50-80 part
Enzyme is mannase or superoxide-dismutase 0.1-5 part
Gel breaker is ammonium persulphate or the Potassium Persulphate 0-3 part of selling on market
Water 10-30 part
Embodiment 1
Raw material is prepared: 10 parts, water, organic borate cross-linker 50,3 parts of ammonium persulphates, 1 part of mannase.
Embodiment 2
Raw material is prepared: 30 parts, water, organic borate cross-linker 80,1 part of Potassium Persulphate, 0.3 part of superoxide-dismutase.
Embodiment 3
Raw material is prepared: 30 parts, water, organic boron zirconium cross linking agent 70,0.5 part of ammonium persulphate, mannase 1.
Embodiment 4
Raw material is prepared: 0.5 part, 10 parts, water, organic borate cross-linker 80, ammonium persulphate.
Embodiment 5
Raw material is prepared: 0.1 part, 20 parts, water, organic borate cross-linker 70, ammonium persulphate.
Embodiment 6
Raw material is prepared: 10 parts, water, organic boron zirconium cross linking agent 70,3 parts of Potassium Persulphates, mannase 3.
2, preparation method:
First, water is joined in reactor, be warming up to 30 ℃, airtight nitrogen replacement air, control fracturing 0.1-0.3MPa; Then, turn on agitator slowly adds linking agent in reactor, reacts 30 minutes, is conducive to delayed cross-linking; Then, in reactor, slowly add organic borate cross-linker, react 30 minutes, be conducive to brokenly glue; Next, in reactor, add enzyme, react 3 hours, be conducive to the broken glue of low temperature.Finally detect discharging.The product of being produced by aforesaid method meets the requirement of industry standard.
Two, crosslinked gel breaker example for guar gum fracturing fluid
Guar gum fracturing fluid of the present invention is mainly used on the crosslinked broken glue of oil field fracturing fluid with crosslinked gel breaker, and its usage quantity is the 0.05-0.6% of fracturing liquid total mass.
Guar gum fracturing fluid in embodiment 1-5 is tested with crosslinked gel breaker, and the test-results in laboratory reaches satisfied substantially with the on-the-spot result using, and not only broken glue is thorough, and broken glue speed.Be below Lab-evaluation case:
1, extend east region fracturing liquid desk research
Base fluid: 0.25% melon glue+0.1% cleanup additive+0.1% clay stabilizer+0.05% sterilant
Crosslinked gel breaker: 50% stoste
Crosslinked ratio: 100:0.6
According to extending east depth of stratum 500-1000 rice, formation temperature is between 25-30 degree, the crosslinked broken glue experiment that we carry out, can meet " fracturing liquid method of evaluating performance " requirement (SY/T5107-2007), it is indoor that to take sand functional, after 2 hours, the Pin Shi viscosity of breaking glue solution is less than 5mpa.s, reaches standard-required.
2, extend western area fracturing liquid desk research
Base fluid: 0.30% melon glue+0.3% cleanup additive+0.3% clay stabilizer+0.05% sterilant
Crosslinked gel breaker: 50% stoste
Crosslinked ratio: 100:0.6
According to extending east depth of stratum 1000-2000 rice, formation temperature is between 30-60 degree, the crosslinked broken glue experiment that we carry out, can meet " fracturing liquid method of evaluating performance " requirement (SY/T5107-2007), it is indoor that to take sand functional, after 2 hours, the Pin Shi viscosity of breaking glue solution is less than 5mpa.s, reaches standard-required.
In sum, crosslinked gel breaker of the present invention, can realize being cross-linked with two kinds of medicaments of broken glue coexisting, and can not impact its application performance, and reaction process generates without precipitation, can not stop up stratum; Crosslinked tank car need not be provided, and the every well of reduction expense is inferior more than 2000 yuan; Product price is more reasonable, and application prospect is better.
It should be noted that, above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.
Claims (5)
1. a preparation method for crosslinked gel breaker for guar gum fracturing fluid, is characterized in that, comprises the following steps:
(1) water that adds 10-30 mass parts, in reactor, is controlled temperature of reaction 30 and is spent, airtight nitrogen replacement air, control pressure 0.1-0.3MPa;
(2) turn on agitator, to the linking agent that slowly adds 50-80 mass parts in reactor, reacts 30 minutes;
(3) to the gel breaker that adds 0-3 mass parts in reactor, react 30 minutes;
(4) to the enzyme that adds 0.1-5 mass parts in reactor, 20-50 degree scope reaction 3 hours.
2. the preparation method of crosslinked gel breaker for guar gum fracturing fluid according to claim 1, is characterized in that, described linking agent is organic borate cross-linker or organic boron zirconium cross linking agent.
3. the preparation method of crosslinked gel breaker for guar gum fracturing fluid according to claim 1, is characterized in that, described gel breaker is ammonium persulphate or Potassium Persulphate.
4. the preparation method of crosslinked gel breaker for guar gum fracturing fluid according to claim 1, is characterized in that, described enzyme is mannase or superoxide-dismutase.
5. the preparation method of crosslinked gel breaker for guar gum fracturing fluid according to claim 1, is characterized in that, when described guar gum fracturing fluid uses on the crosslinked broken glue of oil field fracturing fluid with crosslinked gel breaker, usage quantity is the 0.05-0.6% of fracturing liquid total mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103741.2A CN103911137A (en) | 2014-03-20 | 2014-03-20 | Preparation method and application of crosslinking gel breaker used for guar gum fracturing fluid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410103741.2A CN103911137A (en) | 2014-03-20 | 2014-03-20 | Preparation method and application of crosslinking gel breaker used for guar gum fracturing fluid |
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| CN103911137A true CN103911137A (en) | 2014-07-09 |
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| CN201410103741.2A Pending CN103911137A (en) | 2014-03-20 | 2014-03-20 | Preparation method and application of crosslinking gel breaker used for guar gum fracturing fluid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107338041A (en) * | 2017-08-31 | 2017-11-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of recyclable fracturing fluid gel breaker of Oil/gas Well and application method |
| CN108179008A (en) * | 2017-12-08 | 2018-06-19 | 成都劳恩普斯科技有限公司 | A kind of cross linker system, low concentration polymer crosslinked fracturing fluid and preparation method thereof |
| CN113528115A (en) * | 2021-08-06 | 2021-10-22 | 陕西森瑞石油技术开发有限公司 | Low-temperature guar gel breaker for oil-gas well fracturing, preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102352233A (en) * | 2011-09-07 | 2012-02-15 | 西南石油大学 | Low-harm micro-molecular guar gum fracturing fluid |
-
2014
- 2014-03-20 CN CN201410103741.2A patent/CN103911137A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102352233A (en) * | 2011-09-07 | 2012-02-15 | 西南石油大学 | Low-harm micro-molecular guar gum fracturing fluid |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107338041A (en) * | 2017-08-31 | 2017-11-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of recyclable fracturing fluid gel breaker of Oil/gas Well and application method |
| CN108179008A (en) * | 2017-12-08 | 2018-06-19 | 成都劳恩普斯科技有限公司 | A kind of cross linker system, low concentration polymer crosslinked fracturing fluid and preparation method thereof |
| CN113528115A (en) * | 2021-08-06 | 2021-10-22 | 陕西森瑞石油技术开发有限公司 | Low-temperature guar gel breaker for oil-gas well fracturing, preparation method and application |
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Application publication date: 20140709 |