CN105441057A - High-temperature-resistant inorganic boron cross-linking agent used for fracturing and preparation method thereof - Google Patents
High-temperature-resistant inorganic boron cross-linking agent used for fracturing and preparation method thereof Download PDFInfo
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- CN105441057A CN105441057A CN201510882650.8A CN201510882650A CN105441057A CN 105441057 A CN105441057 A CN 105441057A CN 201510882650 A CN201510882650 A CN 201510882650A CN 105441057 A CN105441057 A CN 105441057A
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- resistant inorganic
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- linking agent
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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
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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
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
Abstract
The invention discloses a high-temperature-resistant inorganic boron cross-linking agent used for fracturing and a preparation method thereof. The high-temperature-resistant inorganic boron cross-linking agent is prepared from, by mass, 20-35 parts of boric acid, 5-10 parts of sodium carbonate, 15-40 parts of glycerinum and 50-100 parts of water. When the high-temperature-resistant inorganic boron cross-linking agent is applied in fracturing transformation of oil and gas reservoirs, permeability damage caused by fracturing liquid to reservoirs can be effectively reduced, the use amount of gel breaker is decreased, and therefore the fracturing transformation effect of oil and gas reservoirs is improved. The cross-linking agent is simple in component, does not contain any corrosive dangerous chemicals and solves the technical problems that in the prior art, the number of components in cross-linking agents is large and dangerous chemicals such as hydrogen peroxide and sodium hydroxide are contained in cross-linking agents.
Description
Technical field
What the present invention relates to hydrocarbon zone fracturing reform uses linking agent technical field, particularly relates to a kind of pressure break high temperature resistant inorganic borate crosslinker and preparation method thereof.
Background technology
Pressure break is important measures that are hypotonic, special low permeability oil field reservoir reconstruction, is the dominant technology realizing low permeability reservoirs effective exploitation.At present both at home and abroad reservoir reconstruction generally uses with boron is the water-base gel fracturing fluid of linking agent, and borate crosslinker comprises organic boron and Inorganic Boron two kinds.Compared with organic boron, inorganic boron crosslinking agent is nontoxic, inexpensive, the visco-elasticity that had of fracturing liquid of its preparation and resistant to shearing restorative, thoroughly, clean-up performance is high, but its heat resistance is poor, and compound concentration is low, greatly constrains the use of this linking agent for broken glue.Oil Field is when preparing linking agent, generally sodium tetraborate solid is directly added in crosslinked tank, circulation stirring is not carried out during the on-the-spot dosing had, but reach the object of mixing by liquid sloshing in transit, although still churning time is too short to have carried out stirring during the on-the-spot dosing had, must have like this and do not sunk at the bottom of tank by the sodium tetraborate dissolved in a large number, the concentration of actual cross-linking agent solution is made not reach design requirements, especially construct in autumn and winter, dosing temperature is low, the solubleness in water of borax is little, the effective content of the boron in crosslinked fluid is low, have a strong impact on fracturing liquid quality, well fracturing correctional effect certainly will be had influence on.
Therefore, a kind of concentrated Inorganic Boron crosslinked fluid and preparation method thereof is proposed in prior art, its formula consists of: component A (30 parts of sodium tetraborates, 30 parts of hydrogen peroxide, 5 parts of lactic acid, 10 parts of ethylene glycol), B component (5 parts of trolamines, 1.5 parts of water), preparation component A needs first to react 60 minutes under 60 DEG C of conditions, stir 30 minutes after A, B component mixing subsequently, component is many and containing hydrogen peroxide.
Therefore, it is many to there is component in above-mentioned linking agent, containing technical problems such as the hazardous chemicals such as hydrogen peroxide, sodium hydroxide.
Summary of the invention
The application provides a kind of pressure break high temperature resistant inorganic borate crosslinker and preparation method thereof, and solving linking agent of the prior art, to there is component many, containing technical problems such as the hazardous chemicals such as hydrogen peroxide, sodium hydroxide.
The application provides a kind of pressure break high temperature resistant inorganic borate crosslinker, it is characterized in that, component and the mass fraction of described pressure break high temperature resistant inorganic borate crosslinker comprise: boric acid 20-35 part, sodium carbonate 5-10 part, glycerine 15-40 part, water 50-100 part.
The application also provides a kind of preparation method of pressure break high temperature resistant inorganic borate crosslinker, and for the preparation of pressure break high temperature resistant inorganic borate crosslinker as described in the appended claim 1, it is characterized in that, described preparation method comprises:
15-40 part glycerine is added in 50-100 part water, is at room temperature uniformly mixed, obtain the first mixing liquid;
20-35 part boric acid and 5-10 part sodium carbonate are added in described first mixing liquid simultaneously, at room temperature stirs, obtain described pressure break high temperature resistant inorganic borate crosslinker.
Preferably, described 15-40 part glycerine to be added in 50-100 part water, is at room temperature uniformly mixed, obtains the first mixing liquid, be specially:
Described 15-40 part glycerine to be added in 50-100 part water, be at room temperature uniformly mixed 1-3 minute, obtain the first mixing liquid.
Preferably, described 20-35 part boric acid and 5-10 part sodium carbonate to be added in described first mixing liquid simultaneously, at room temperature stir, obtain described pressure break high temperature resistant inorganic borate crosslinker, be specially:
Described 20-35 part boric acid and 5-10 part sodium carbonate are added in described first mixing liquid simultaneously, at room temperature stir 30 minutes, obtain described pressure break high temperature resistant inorganic borate crosslinker.
The application's beneficial effect is as follows:
The fracturing reform that this pressure break high temperature resistant inorganic borate crosslinker is applied to hydrocarbon-bearing pool effectively can reduce the permeability injury that fracturing liquid causes reservoir, reduce gel breaker consumption, thus improve the fracturing reform effect of hydrocarbon-bearing pool, and this linking agent moiety is simple, not containing any corrodibility hazardous chemical, solving linking agent of the prior art, to there is component many, containing technical problems such as the hazardous chemicals such as hydrogen peroxide, sodium hydroxide.
In addition, this pressure break is with high temperature resistant inorganic borate crosslinker effective boron content at 20%-30%, and the effective concentration of boron significantly improves, and blending process is simple simultaneously, and transport and use controllability are significantly improved.And the excellent property of this linking agent ,≤the needs of 160 DEG C of reservoir fracturing improvement can be met.
Above-mentioned preparation method is safe and simple, workable, and dosing cost is low, solves the technical problem that in prior art, dosing cost is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described by the accompanying drawing used required in describing embodiment below, apparently, the accompanying drawing in the following describes is only some embodiments of the present invention.
Fig. 1 is the method flow diagram of the preparation method of a kind of pressure break high temperature resistant inorganic of the application's better embodiment borate crosslinker;
Fig. 2 is the 150 DEG C of fracturing liquid viscosity-temperature curve figure adopting the example 1 as the method in Fig. 1 to test.
Embodiment
The embodiment of the present application is by providing a kind of pressure break high temperature resistant inorganic borate crosslinker and preparation method thereof, and solving linking agent of the prior art, to there is component many, containing technical problems such as the hazardous chemicals such as hydrogen peroxide, sodium hydroxide.
Technical scheme in the embodiment of the present application is for solving the problems of the technologies described above, and general thought is as follows:
A kind of pressure break high temperature resistant inorganic borate crosslinker, it is characterized in that, component and the mass fraction of described pressure break high temperature resistant inorganic borate crosslinker comprise: boric acid 20-35 part, sodium carbonate 5-10 part, glycerine 15-40 part, water 50-100 part.
The fracturing reform that this pressure break high temperature resistant inorganic borate crosslinker is applied to hydrocarbon-bearing pool effectively can reduce the permeability injury that fracturing liquid causes reservoir, reduce gel breaker consumption, thus improve the fracturing reform effect of hydrocarbon-bearing pool, and this linking agent moiety is simple, not containing any corrodibility hazardous chemical, solving linking agent of the prior art, to there is component many, containing technical problems such as the hazardous chemicals such as hydrogen peroxide, sodium hydroxide.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail.
In order to solve linking agent of the prior art, to there is component many, and containing technical problems such as the hazardous chemicals such as hydrogen peroxide, sodium hydroxide, the application provides a kind of pressure break high temperature resistant inorganic borate crosslinker.Component and the mass fraction of described pressure break high temperature resistant inorganic borate crosslinker comprise: boric acid 20-35 part, sodium carbonate 5-10 part, glycerine 15-40 part, water 50-100 part.
The fracturing reform that this pressure break high temperature resistant inorganic borate crosslinker is applied to hydrocarbon-bearing pool effectively can reduce the permeability injury that fracturing liquid causes reservoir, reduce gel breaker consumption, thus improve the fracturing reform effect of hydrocarbon-bearing pool, and this linking agent moiety is simple, not containing any corrodibility hazardous chemical, solving linking agent of the prior art, to there is component many, containing technical problems such as the hazardous chemicals such as hydrogen peroxide, sodium hydroxide.
In addition, this pressure break is with high temperature resistant inorganic borate crosslinker effective boron content at 20%-30%, and the effective concentration of boron significantly improves, and blending process is simple simultaneously, and transport and use controllability are significantly improved.And the excellent property of this linking agent ,≤the needs of 160 DEG C of reservoir fracturing improvement can be met.
The application also provides a kind of preparation method of pressure break high temperature resistant inorganic borate crosslinker, and as shown in Figure 1, described preparation method comprises the following steps:
Step 110: 15-40 part glycerine is added in 50-100 part water, is at room temperature uniformly mixed, obtain the first mixing liquid;
Step 120: 20-35 part boric acid and 5-10 part sodium carbonate are added in described first mixing liquid simultaneously, at room temperature stir, obtains described pressure break high temperature resistant inorganic borate crosslinker.
Above-mentioned preparation method is safe and simple, workable, and dosing cost is low, solves the technical problem that in prior art, dosing cost is high.
The pressure break that the linking agent of the application can be widely used under various operating environment is implemented, the special operation environment such as marine pressure break are suitable for too, the fracturing liquid of this linking agent preparation has good rheological property, broken glue is thorough, the advantages such as fracturing liquid is clean, current site operation equipment meets the preparation of this New Fracturing Fluid completely, and product has wide market outlook.
Below illustrate and the performance of the technical program is described.
Example 1: get 60 parts of water and 15 parts of glycerol mixtures, add the sodium carbonate of 20 parts of boric acid and 6 parts, at room temperature stir 30nin, make high temperature resistant inorganic borate crosslinker.
Example 2: get 55 parts of water and 15 parts of glycerol mixtures, add the sodium carbonate of 25 parts of boric acid and 7 parts, at room temperature stir 30min, make high temperature resistant inorganic borate crosslinker.
Example 3: get 50 parts of water and 20 parts of glycerol mixtures, adds 20 parts of boric acid and 7 parts of sodium carbonate, at room temperature stirs 30min, make high temperature resistant inorganic borate crosslinker.
Example 1-3 apparent property table is as follows.
Table 1 routine 1-3 apparent property table
| Sequence number | Interventions Requested | Unit | Assay |
| 1 | Outward appearance | / | Colourless uniform liquid |
| 2 | Density (30 DEG C) | g/cm 3 | 1.13-1.18 |
| 3 | PH value | / | 7.0 |
| 4 | Water-soluble | / | Dissolve each other with water |
| 5 | Cross-linking properties | / | The frozen glue that useable glass rod hangs can be formed |
| 6 | Delay time | min | 0.5-10min is adjustable |
According to following component preparing fracturing fluid: prepared by (1) base fluid: 0.5% hydroxypropyl guar gum+0.12% sodium hydroxide+1% Repone K+1% clay stabilizer+1% cleanup additive+0.2% sterilant (2) crosslinked fluid is according to embodiment 1, embodiment 2, prepared by embodiment 3; (3) fracturing liquid preparation: be that 100:0.5 prepares fracturing liquid by crosslinking ratio, 0.5% crosslinked fluid is added in the base fluid prepared, stir in 0.5-3min and can form frozen glue, form hanging property of frozen glue good, carry out fracturing fluid property test with RS6000 rheometer.Fracturing liquid is under 150 DEG C of conditions, and during 170S-1 continuous shear stress 120min, viscosity remains on more than 60mPa.s.Experimental result is as following table 1 and Fig. 2:
The performance data contrast table of example 1-example 3 and conventional linking agent preparing fracturing fluid
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. a pressure break high temperature resistant inorganic borate crosslinker, is characterized in that, component and the mass fraction of described pressure break high temperature resistant inorganic borate crosslinker comprise: boric acid 20-35 part, sodium carbonate 5-10 part, glycerine 15-40 part, water 50-100 part.
2. a pressure break preparation method for high temperature resistant inorganic borate crosslinker, for the preparation of pressure break high temperature resistant inorganic borate crosslinker as described in the appended claim 1, it is characterized in that, described preparation method comprises:
15-40 part glycerine is added in 50-100 part water, is at room temperature uniformly mixed, obtain the first mixing liquid;
20-35 part boric acid and 5-10 part sodium carbonate are added in described first mixing liquid simultaneously, at room temperature stirs, obtain described pressure break high temperature resistant inorganic borate crosslinker.
3. preparation method as claimed in claim 2, is characterized in that, is describedly added in 50-100 part water by 15-40 part glycerine, is at room temperature uniformly mixed, obtains the first mixing liquid, be specially:
Described 15-40 part glycerine to be added in 50-100 part water, be at room temperature uniformly mixed 1-3 minute, obtain the first mixing liquid.
4. preparation method as claimed in claim 2, is characterized in that, describedly 20-35 part boric acid and 5-10 part sodium carbonate is added in described first mixing liquid simultaneously, at room temperature stirs, obtains described pressure break high temperature resistant inorganic borate crosslinker, be specially:
Described 20-35 part boric acid and 5-10 part sodium carbonate are added in described first mixing liquid simultaneously, at room temperature stir 30 minutes, obtain described pressure break high temperature resistant inorganic borate crosslinker.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510882650.8A CN105441057A (en) | 2015-12-03 | 2015-12-03 | High-temperature-resistant inorganic boron cross-linking agent used for fracturing and preparation method thereof |
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| CN201510882650.8A CN105441057A (en) | 2015-12-03 | 2015-12-03 | High-temperature-resistant inorganic boron cross-linking agent used for fracturing and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109957385A (en) * | 2017-12-14 | 2019-07-02 | 中国石油天然气股份有限公司 | Crosslinking enhancer and preparation method thereof and fracturing fluid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252234A (en) * | 1991-05-24 | 1993-10-12 | Zirconium Technology Corporation | Borate cross-linking solutions |
| US7000702B2 (en) * | 2003-09-17 | 2006-02-21 | Halliburton Energy Services, Inc. | Environmentally benign viscous well treating fluids and methods |
| CN102337114A (en) * | 2011-08-03 | 2012-02-01 | 西安长庆化工集团有限公司 | Inorganic boron crosslinking agent and preparation method thereof |
| US20120142849A1 (en) * | 2010-12-01 | 2012-06-07 | Mattel, Inc. | Play Composition Including Crosslinkable Binder |
| CN102977878A (en) * | 2012-12-28 | 2013-03-20 | 陕西科技大学 | Vegetable gelatin fracturing fluid and preparation method thereof |
| CN103265943A (en) * | 2013-05-07 | 2013-08-28 | 四川省博仁达石油科技有限公司 | Cross-linking agent for low concentration guanidine gum pressing crack system and preparation technology thereof |
| CN103694986A (en) * | 2014-01-08 | 2014-04-02 | 四川川庆井下科技有限公司 | Guar gum fracturing fluid |
-
2015
- 2015-12-03 CN CN201510882650.8A patent/CN105441057A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252234A (en) * | 1991-05-24 | 1993-10-12 | Zirconium Technology Corporation | Borate cross-linking solutions |
| US7000702B2 (en) * | 2003-09-17 | 2006-02-21 | Halliburton Energy Services, Inc. | Environmentally benign viscous well treating fluids and methods |
| US20120142849A1 (en) * | 2010-12-01 | 2012-06-07 | Mattel, Inc. | Play Composition Including Crosslinkable Binder |
| CN102337114A (en) * | 2011-08-03 | 2012-02-01 | 西安长庆化工集团有限公司 | Inorganic boron crosslinking agent and preparation method thereof |
| CN102977878A (en) * | 2012-12-28 | 2013-03-20 | 陕西科技大学 | Vegetable gelatin fracturing fluid and preparation method thereof |
| CN103265943A (en) * | 2013-05-07 | 2013-08-28 | 四川省博仁达石油科技有限公司 | Cross-linking agent for low concentration guanidine gum pressing crack system and preparation technology thereof |
| CN103694986A (en) * | 2014-01-08 | 2014-04-02 | 四川川庆井下科技有限公司 | Guar gum fracturing fluid |
Non-Patent Citations (6)
| Title |
|---|
| 宋立姝等: "水溶液中硼酸的酸式离解及其强化问题", 《安庆师范学院学报(自科版)》 * |
| 张祖德: "《无机化学》", 30 October 2014, 中国科学技术出版社 * |
| 李志富等: "《分析化学》", 31 August 2015, 华中科技大学出版社 * |
| 谭明文等: "有机硼交联剂DY2―1的改性研究与应用", 《天然气工业》 * |
| 陈经涛: "硼酸与多羟基醇反应机理研究", 《中国西部科技(学术)》 * |
| 高鸿慈等: "多元醇强化硼酸酸性的讨论", 《药学通报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109957385A (en) * | 2017-12-14 | 2019-07-02 | 中国石油天然气股份有限公司 | Crosslinking enhancer and preparation method thereof and fracturing fluid |
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Application publication date: 20160330 |