CN103740355A - High-salinity water-based modified xanthan gum fracturing fluid and preparation method thereof - Google Patents
High-salinity water-based modified xanthan gum fracturing fluid and preparation method thereof Download PDFInfo
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- CN103740355A CN103740355A CN201410008683.5A CN201410008683A CN103740355A CN 103740355 A CN103740355 A CN 103740355A CN 201410008683 A CN201410008683 A CN 201410008683A CN 103740355 A CN103740355 A CN 103740355A
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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
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- 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
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
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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
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
- C09K8/604—Polymeric surfactants
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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
- C09K8/665—Compositions based on water or polar solvents containing inorganic 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
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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
- C09K2208/26—Gel breakers other than bacteria or enzymes
Abstract
The invention provides a high-salinity water-based modified xanthan gum fracturing fluid and a preparation method thereof. The high-salinity water-based modified xanthan gum fracturing fluid comprises the following components in parts by weight: 96.4-99.2 parts of water, 0.3-0.6 part of modified xanthan gum, 0.5-1 part of demulsification cleanup agent, 0-2 parts of clay stabilizer, 0-1 part of viscosity modifier and 0.01-3 parts of gel breaker. The invention further provides the preparation method of the high-salinity water-based modified xanthan gum fracturing fluid. The high-salinity water-based modified xanthan gum fracturing fluid provided by the invention is a non-crosslinked fracturing fluid; and due to a special molecular structure, the high-salinity water-based modified xanthan gum fracturing fluid has an internal association action and has the elastic performance which is equivalent to the crosslinked fracturing fluid.
Description
Technical field
The present invention relates to the water base modification xanthan gum of a kind of high salinity fracturing liquid and preparation method thereof, belong to oil reservoir volume increase renovation technique field.
Background technology
Fracturing liquid is one of key link determining Hydro Fracturing Stimulation Treatment success or failure, through the development of over half a century, formed multiple fracturing fluid system, but thickening material is still take guar gum and modified guar as main, using portion is more than 90%, be subject to the impact of the market requirement, guar gum price is mad to go up, and causes fracturing liquid cost to increase substantially.In addition, the scarcity of Freshwater resources, water proportion in fracturing liquid cost can not be ignored.Therefore fracturing liquid development in pluralism and improvement are the directions reducing costs to the adaptability of water quality.Xanthan gum is a kind of nontoxic, tasteless, anti-oxidant, xanthan gum that solvability is good, in water, dissolve and there is the features such as anti-high salinity, acidproof/alkali, stable performance, compatibleness are good, in petroleum industry, be widely used, as drilling well, completion, well workover, tertiary oil recovery, profile control and water plugging etc., there is good thickening and rheological property.
Xanthan gum is to make with starch a kind of novel high polymer biological polyoses that raw material produces through xanthomonas fermentation, " pentasaccharides repeating unit " the topology convergence body being formed by D-Glucose, D-MANNOSE, glucuronic acid, acetic acid and pyruvic acid, in the aqueous solution, may have double-spiral structure, therefore having must stability and salt resistance.Due to the special construction of xanthan gum molecule, its solution has with the suitable viscoelasticity of conventional melon glue crosslinked gel, and therefore xanthan gum base fluid can directly be used as fracturing liquid.Non-crosslinked xanthan gum fracturing liquid have easy, the elasticity of preparation high take grittiness can be good, rheological property stable, adapts to the various high-salinity water qualities such as underground water, seawater, oil extraction-generated waste water, fracturing fluid recovery (backflow) liquid, compared with guar gum fracturing liquid, cost is lower.
Therefore, research and develop the water base modification xanthan gum of a kind of high salinity fracturing liquid, and make its fracturing liquid making adapt to the preparation of various water sources, there is better elasticity and take grittiness energy, reduce fracturing liquid cost and meet Production requirement.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide the water base modification xanthan gum of a kind of high salinity fracturing liquid, this fracturing liquid utilizes low cost water source, can effectively reduce of the fracturing fluid cost.
For achieving the above object, the invention provides the water base modification xanthan gum of a kind of high salinity fracturing liquid, in weight part, the water base modification xanthan gum of this high salinity fracturing liquid has following one-tenth and is grouped into:
In the water base modification xanthan gum of above-mentioned high salinity fracturing liquid, preferably, the water adopting comprises one or more the combination in shallow ground water, seawater, oilfield produced waste water and fracturing fluid recovery (backflow) liquid etc.
In the water base modification xanthan gum of above-mentioned high salinity fracturing liquid, preferably, the modification xanthan gum adopting is the XCT-D type modification xanthan gum of Hebei Xin He biochemical technology company limited production etc.
In the water base modification xanthan gum of above-mentioned high salinity fracturing liquid, preferably, the breakdown of emulsion cleanup additive adopting is one or more the combination in polyethenoxy ether class tensio-active agent and/or quaternary ammonium salts tensio-active agent; More preferably, above-mentioned breakdown of emulsion cleanup additive is DL-8 type or the DL-12 type tensio-active agent etc. that Hua You Cologne, Beijing development company produces.
In the water base modification xanthan gum of above-mentioned high salinity fracturing liquid, preferably, the clay stabilizer adopting is Repone K etc.
In the water base modification xanthan gum of above-mentioned high salinity fracturing liquid, preferably, the viscosity-controlling agent adopting is the FAT-120 type viscosity-controlling agent of Hua You Cologne, Beijing development company production etc.
In the water base modification xanthan gum of above-mentioned high salinity fracturing liquid, preferably, the gel breaker adopting is ammonium persulphate and/or Potassium Persulphate etc.
In the water base modification xanthan gum of above-mentioned high salinity fracturing liquid, preferably, the salinity of the water adopting is 5000mg/L-30000mg/L.Water of the present invention can be shallow ground water, seawater, oilfield produced waste water or fracturing fluid recovery (backflow) liquid etc.
The present invention also provides the water base modification xanthan gum of above-mentioned high salinity of the fracturing fluid preparation method, and it comprises the following steps:
The preparation of solution A: add water in container, slowly add modification xanthan gum, then add respectively cleanup additive, clay stabilizer;
Viscosity-controlling agent and gel breaker are packed separately, mix in use with solution A.
The water that the water base modification xanthan gum of high salinity provided by the invention fracturing liquid adopts is shallow ground water, seawater, oilfield produced waste water or fracturing fluid recovery (backflow) liquid, meet the developing direction of the low injury of current fracturing liquid, low cost, high-efficiency environment friendly, the use of these concentrated waters, can when pressing crack construction, reduce operating cost, shorten construction period, realize the fast standby water of pressure break, and make fracturing liquid recycling become possibility.
Modification xanthan gum consumption 0.3%-0.6% in the water base modification xanthan gum of high salinity provided by the invention fracturing liquid can have good elasticity and take grittiness energy within the scope of 50 ℃-120 ℃.Xanthan gum concentration is 0.4% fracturing liquid elastic modulus G ' be 5.19Pa, stickiness modulus G " be 2.14Pa; and the elastic modulus G of conventional 0.4% hydroxypropyl guar gum organic boron crosslinked gel ' be 5.23Pa; stickiness modulus G " is 1.26Pa, visible, although the water base modification xanthan gum of high salinity provided by the invention fracturing liquid is non-crosslinked fracturing liquid, due to its special molecular structure, there is inner association, there is the elastic performance suitable with crosslinked fracturing liquid.
Embodiment
For technical characterictic of the present invention, object and beneficial effect being had more clearly, understand, existing technical scheme of the present invention is carried out to following detailed description, but can not be interpreted as restriction that can practical range of the present invention.
Embodiment 1
The present embodiment provides a kind of high salinity modification xanthan gum fracturing liquid, and in weight part, this fracturing liquid comprises that following one-tenth is grouped into:
Wherein, modification xanthan gum is XCT-D type modification xanthan gum, and breakdown of emulsion cleanup additive is DL-8 type tensio-active agent, and clay stabilizer is KCl, and viscosity-controlling agent is FAT-120 type viscosity-controlling agent, and gel breaker is ammonium persulphate.
The of the fracturing fluid preparation method of high salinity modification xanthan gum that this embodiment provides comprises the following steps:
(1) preparation of solution A: add shallow ground water in container, under the condition stirring or circulate, proportionally require slowly to add modification xanthan gum, then add respectively cleanup additive, clay stabilizer, make solution A; Utilize the viscosity of the solution A of six fast viscosmeter test the present embodiment, utilize the viscoelasticity of this solution A of RS6000 rheometer test, probe temperature is 25 ℃, and result is referring to table 1;
(2) this modification xanthan gum solution, without crosslinked, can directly be used as the fracturing liquid of 90 ℃ of reservoir reconstructions, in infusion solution A, by step-wise manner, adds from less to more in proportion viscosity-controlling agent and gel breaker.
Embodiment 2
The present embodiment provides a kind of high salinity modification xanthan gum fracturing liquid, and in weight part, this fracturing liquid comprises that following one-tenth is grouped into:
Wherein, modification xanthan gum is XCT-D type modification xanthan gum, and breakdown of emulsion cleanup additive is DL-8 type tensio-active agent, and gel breaker is ammonium persulphate.
The of the fracturing fluid preparation method of high salinity modification xanthan gum that this embodiment provides comprises the following steps:
(1) preparation of solution A: add sewage in container, under the condition stirring or circulate, proportionally require slowly to add modification xanthan gum, then add breakdown of emulsion cleanup additive, make solution A; Utilize the viscosity of the solution A of six fast viscosmeter test the present embodiment, utilize the viscoelasticity of this solution A of RS6000 rheometer test, probe temperature is 25 ℃, and result is referring to table 1;
(2) this modification xanthan gum solution, without crosslinked, can directly be used as the fracturing liquid of 100 ℃ of reservoir reconstructions, in infusion solution A, by step-wise manner, adds from less to more in proportion gel breaker.
Embodiment 3
The present embodiment provides a kind of high salinity modification xanthan gum fracturing liquid, and in weight part, this fracturing liquid comprises that following one-tenth is grouped into:
Wherein, modification xanthan gum is XCT-D type modification xanthan gum, and breakdown of emulsion cleanup additive is DL-8 type tensio-active agent, and clay stabilizer is KCl, and viscosity-controlling agent is FAT-120 type viscosity-controlling agent, and gel breaker is ammonium persulphate.
The of the fracturing fluid preparation method of high salinity modification xanthan gum that this embodiment provides comprises the following steps:
(1) preparation of solution A: add seawater in container, under the condition stirring or circulate, proportionally require slowly to add modification xanthan gum, then add respectively breakdown of emulsion cleanup additive, clay stabilizer, make solution A; Utilize the viscosity of the solution A of six fast viscosmeter test the present embodiment, utilize the viscoelasticity of this solution A of RS6000 rheometer test, probe temperature is 25 ℃, and result is referring to table 1;
(2) this modification xanthan gum solution, without crosslinked, can directly be used as the fracturing liquid of 100 ℃ of reservoir reconstructions, in infusion solution A, by step-wise manner, adds from less to more in proportion viscosity-controlling agent and gel breaker.
Embodiment 4
The present embodiment provides a kind of high salinity modification xanthan gum fracturing liquid, and in weight part, this fracturing liquid comprises that following one-tenth is grouped into:
Wherein, modification xanthan gum is XCT-D type modification xanthan gum, and breakdown of emulsion cleanup additive is DL-8 type tensio-active agent, and clay stabilizer is KCl, and gel breaker is ammonium persulphate.
The of the fracturing fluid preparation method of high salinity modification xanthan gum that this embodiment provides comprises the following steps:
(1) preparation of solution A: add fracturing fluid recovery (backflow) liquid in container, under the condition stirring or circulate, proportionally require slowly to add modification xanthan gum, then add respectively breakdown of emulsion cleanup additive, clay stabilizer, make solution A; Utilize the viscosity of the solution A of six fast viscosmeter test the present embodiment, utilize the viscoelasticity of this solution A of RS6000 rheometer test, probe temperature is 25 ℃, and result is referring to table 1;
(2) this modification xanthan gum solution, without crosslinked, can directly be used as the fracturing liquid of 110 ℃ of reservoir reconstructions, in infusion solution A, by step-wise manner, adds from less to more in proportion gel breaker.
Table 1
| Embodiment | Solution viscosity, mPas | G′，Pa | G″，Pa |
| Embodiment 1 | 49.5 | 5.19 | 2.14 |
| Embodiment 2 | 54 | 5.35 | 2.07 |
| Embodiment 3 | 60 | 10.24 | 3.52 |
| Embodiment 4 | 51 | 4.98 | 2.31 |
Comparative example 1
The xanthan gum fracturing liquid of preparing take embodiment 2 is sample 1, and the fracturing liquid that the one-level hydroxypropyl guar gum of producing take Kunshan Materials Company of CNPC makes is as sample 2, and linking agent is the BCL-81 type linking agent that Hua You Cologne, Beijing development company produces.
The composition of sample 2 consists of: 0.4%HPG(hydroxypropyl guar gum), 0.5%DL-8,2%KCl, 0.1%HCHO, 0.045%NaOH, 0.4%BCL-81, surplus be water.
Utilize six fast viscosmeters test above-mentioned sample 1, sample 2 molten/viscosity of base fluid, utilize the visco-elasticity of the above-mentioned sample 1 of RS6000 rheometer test and the frozen glue viscoelasticity of sample 2, probe temperature is 25 ℃, result is referring to table 2.
Table 2
| ? | Solution viscosity η, mPas | Storage modulus G ', Pa | Loss modulus G ", Pa |
| Sample 1 | 54 | 5.35 | 2.07 |
| Sample 2 | 37.5 | 3.43 | 1.26 |
Table 3
As can be seen from Table 2, the high salinity xanthan gum fracturing liquid that embodiment 2 provides has with the crosslinked suitable viscoelasticity of hydroxypropyl melon fracturing fluid, can be used for reservoir reconstruction pressure break and implements.
Claims (10)
1. the water base modification xanthan gum of a high salinity fracturing liquid, in weight part, the water base modification xanthan gum of this high salinity fracturing liquid has following one-tenth and is grouped into:
2. the water base modification xanthan gum of high salinity according to claim 1 fracturing liquid, wherein, described water comprises one or more the combination in shallow ground water, seawater, oilfield produced waste water and fracturing fluid recovery (backflow) liquid.
3. the water base modification xanthan gum of high salinity according to claim 1 fracturing liquid, wherein, described modification xanthan gum is the XCT-D type modification xanthan gum that Hebei Xin He biochemical technology company limited produces.
4. the water base modification xanthan gum of high salinity according to claim 1 fracturing liquid, wherein, described breakdown of emulsion cleanup additive is one or more the combination in polyethenoxy ether class tensio-active agent and/or quaternary ammonium salts tensio-active agent.
5. the water base modification xanthan gum of high salinity according to claim 4 fracturing liquid, wherein, described breakdown of emulsion cleanup additive is DL-8 type or the DL-12 type tensio-active agent that Hua You Cologne, Beijing development company produces.
6. the water base modification xanthan gum of high salinity according to claim 1 fracturing liquid, wherein, described clay stabilizer is Repone K.
7. the water base modification xanthan gum of high salinity according to claim 1 fracturing liquid, wherein, described viscosity-controlling agent is the FAT-120 type viscosity-controlling agent that Hua You Cologne, Beijing development company produces.
8. the water base modification xanthan gum of high salinity according to claim 1 fracturing liquid, wherein, described gel breaker is ammonium persulphate and/or Potassium Persulphate.
9. the water base modification xanthan gum of high salinity according to claim 1 fracturing liquid, wherein, the salinity of described water is 5000mg/L-30000mg/L.
10. the of the fracturing fluid preparation method of the water base modification xanthan gum of the high salinity described in claim 1-9 any one, it comprises the following steps:
The preparation of solution A: add water in container, slowly add modification xanthan gum, then add respectively cleanup additive, clay stabilizer;
Viscosity-controlling agent and gel breaker are packed separately, mix in use with solution A.
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Cited By (7)
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| CN104312571A (en) * | 2014-09-17 | 2015-01-28 | 华东理工大学 | Modified xanthan gum thickener and its application in preparation of fracturing fluid |
| CN104342102A (en) * | 2014-04-25 | 2015-02-11 | 北京世纪中星能源技术有限公司 | Non-crosslinked fracturing fluid for production increase for oil field oil-gas well, and preparation and construction method of non-crosslinked fracturing fluid |
| CN104946215A (en) * | 2015-06-11 | 2015-09-30 | 西安石油大学 | Method for preparing drilling fluid using guar gum fracturing fluid waste water |
| CN106634937A (en) * | 2016-12-29 | 2017-05-10 | 中国石油天然气股份有限公司 | Modified xanthan gum thickener and fracturing fluid |
| CN106800924A (en) * | 2016-12-28 | 2017-06-06 | 中国石油天然气股份有限公司 | A kind of high temperature resistant xanthan fracturing fluid and preparation method thereof |
| CN109957386A (en) * | 2017-12-22 | 2019-07-02 | 中国石油天然气股份有限公司 | Fracturing fluid of a kind of oil field extracted water preparation and preparation method thereof and its application |
| CN114656946A (en) * | 2022-03-09 | 2022-06-24 | 河南天祥新材料股份有限公司 | Emulsion breaking and gel breaking agent for emulsion fracturing fluid without residues |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104342102A (en) * | 2014-04-25 | 2015-02-11 | 北京世纪中星能源技术有限公司 | Non-crosslinked fracturing fluid for production increase for oil field oil-gas well, and preparation and construction method of non-crosslinked fracturing fluid |
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| CN104946215A (en) * | 2015-06-11 | 2015-09-30 | 西安石油大学 | Method for preparing drilling fluid using guar gum fracturing fluid waste water |
| CN106800924A (en) * | 2016-12-28 | 2017-06-06 | 中国石油天然气股份有限公司 | A kind of high temperature resistant xanthan fracturing fluid and preparation method thereof |
| CN106634937A (en) * | 2016-12-29 | 2017-05-10 | 中国石油天然气股份有限公司 | Modified xanthan gum thickener and fracturing fluid |
| CN109957386A (en) * | 2017-12-22 | 2019-07-02 | 中国石油天然气股份有限公司 | Fracturing fluid of a kind of oil field extracted water preparation and preparation method thereof and its application |
| CN114656946A (en) * | 2022-03-09 | 2022-06-24 | 河南天祥新材料股份有限公司 | Emulsion breaking and gel breaking agent for emulsion fracturing fluid without residues |
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Application publication date: 20140423 |