CN103497754A - High-temperature hyper-salinity water-base fracturing fluid - Google Patents
High-temperature hyper-salinity water-base fracturing fluid Download PDFInfo
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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
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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
- C09K8/605—Compositions for stimulating production by acting on the underground formation containing biocides
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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
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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
- C09K8/84—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
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- 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 high-temperature hyper-salinity water-base fracturing fluid consisting of thickening liquid, a cross-linking agent and a gel breaker, wherein the thickening liquid comprises the following components in percentage by weight: 0.4-0.7% of a thickening agent, 0.1-0.8% of a cleanup additive, 0.01-0.1% of a sterilizing agent, 0.1-0.3% of a temperature stabilizing agent, and the balance of hyper-salinity seawater or stratum produced water; the thickening agent is sulfonyl hydroxypropyl guar gum, sulfonyl betaine amphoteric guar gum or sulfonyl carboxymethyl guar gum; the cross-linking agent is a stable complex formed from reaction of 9-18% of a zirconium compound, 3-40% of a boron compound, 9-18% of a chelating ligand and 5-19% of a bridging ligand by mass; the gel breaker is either ammonium persulfate or sodium persulfate. The fracturing fluid is directly prepared from hyper-salinity water and realizes effective utilization of seawater and hyper-salinity produced water from land, and is applicable to seaborne and terrestrial high-temperature oil-gas wells.
Description
Technical field
The present invention relates in oil-gas field development volume increase field to utilize the high temperature fracture liquid of concentrated water preparation.
Background technology
Waterfrac treatment is one of important measures of transformation low permeability reservoir, and on land, oil-gas field is widely used.The crosslinked fracturing liquid of boron is widely used in pressing crack construction, and on land, the crosslinked fracturing liquid of boron is formulated by fresh water and other additives, at sea pressing crack construction is also the flow process according to land at present, first from land, transport seawater to offshore platform, configure fracturing liquid on platform, then construct.So marine logistics has been proposed to very high requirement, and cost there is significantly raising.The oil field of land has the output water of high salinity to arrive ground with oil gas in the christmas process, must carry out corresponding processing to the output water of these high salinities and just can be discharged into the surface water system, and this has increased the production cost of oilfield enterprise.How in the process of pressure break, to utilize the direct preparing fracturing fluid of seawater resources around offshore platform and be the large problem that oilfield enterprise faces to the utilization of high salinity output water.
Abroad as far back as the seventies in last century, with regard to starting, attempt carrying out preparing fracturing fluid with the water of high salinity, but high salinity seawater or output water are compared with fresh water, the high salinity water salinity is more than 20,000, mainly that these inorganic salt can affect guar gum aquation and crosslinked performance owing to wherein being dissolved with a large amount of inorganic salt; Reduced viscosity after the pH of concentrated water meeting strong effect fracturing fluid system causes guar gum crosslinked; The salt of high ion concentration can generate precipitation in of the fracturing fluid alkaline environment, and stratum is damaged; And some gel breaker under high salt concn can lose activity.The problem of these existence makes utilizes the concentrated water preparing fracturing fluid to make slow progress, some successful Application example reports are just just arranged recent years, as Schlumberger company adopts tensio-active agent in 2009, constructed, patent application 201310154769.4 and 201310089680.4 has also proposed to utilize the seawater preparing fracturing fluid.But adopt the tensio-active agent cost high abroad, be not suitable for the exploitation in high temperature low-permeability oil gas field, domestic disclosed patent and document, used multiple additives, makes the process for preparation complexity, and cost is also higher.
Summary of the invention
The object of the present invention is to provide a kind of high temperature and high salinity aqueous fracturing fluid, this fracturing liquid adopts the water preparation of high salinity fully, do not need to add pH adjusting agent, the linking agent that adopts melon colloid system and contain zirconium, can be used for the high-temperature stratum more than 150 ℃, effectively utilize the high salinity output water of seawater and land, be specially adapted to sea and the land Oil/gas Well of high temperature.
For reaching above technical purpose, the invention provides following technical scheme.
A kind of high temperature and high salinity aqueous fracturing fluid, be comprised of gelled fluid, linking agent and gel breaker.Described gelled fluid is comprised of following compositions in weight percentage: viscosifying agent 0.4-0.7%, cleanup additive 0.1-0.8%, sterilant 0.01-0.1%, temperature stabilising agent 0.1-0.3%, all the other seawater that are high salinity or stratum output water.
Described viscosifying agent is sulfonic group hydroxypropylguar gum, sulfonic group beet alkali ampholytic guar gum or sulfonic acid carboxymethyl guar gum.
Described cleanup additive is Trimethyllaurylammonium bromide or cetyl trimethylammonium bromide.
Described sterilant is formaldehyde or glutaraldehyde.
Described temperature stabilising agent is Sulfothiorine or saccharosonic acid.
The bridge ligand that the chelating ligand that the boron compound that the zirconium compounds that described linking agent is is 9-18% by mass percent, mass percent are 3-40% is 9-18% with mass percent, mass percent are 5-19% reacts the stable comple formed.Wherein zirconium compounds is acetic acid zirconium or basic zirconium chloride, and boron compound is boric acid or borax, and chelating ligand is N, N-bis-(2-hydroxyethyl) glycine, and bridge ligand is glycerol, N.F,USP MANNITOL, sorbyl alcohol, trolamine or its mixture; The 0.2-1% that described dosage of crosslinking agent is the gelled fluid quality.
Described gel breaker is ammonium persulphate or Sodium Persulfate, the 0.1-2% that the gel breaker consumption is the gelled fluid quality.
The preparation process of described linking agent is as follows: add the clear water that mass ratio is 5% in the enamel inner container reactor, slowly add zirconium compounds, stir 30min; Add fast chelating ligand, slowly be warmed up to 60 ℃, stir 1h; Add again boron compound, drip bridge ligand in whipping process; Stir 5h under 80 ℃, supply the water of surplus, can obtain linking agent.
The process for preparation of described high temperature and high salinity aqueous fracturing fluid gelled fluid is as follows: add a certain amount of seawater or stratum output water in Agitation Tank, slowly add viscosifying agent, add temperature stabilising agent and sterilant after circulation 10min, finally add cleanup additive, recirculation 10min, obtain gelled fluid.
The existing fracturing liquid that openly utilizes seawater has and adopts tensio-active agent as viscosifying agent, the common melon glue of employing is also arranged as viscosifying agent.Use tensio-active agent very high as the viscosifying agent cost, in formation temperature, higher than 100 ℃, just can not meet the pressure break requirement; Conventional melon glue, the impact due to metal ion in the water of high salinity can not well disperse, and has a strong impact on the process of dosing.The present invention adopts with sulfonic melon glue, and this viscosifying agent be take melon glue as main, and cost can be controlled, and with sulfonic melon xanthan molecule, can in concentrated water, disperse fully, and the dosing process is convenient.The present invention adopts the water preparation of high salinity fully, in order to make the metal ion in concentrated water stable, does not need to add pH adjusting agent in formula, with the pH that keeps system in weakly alkaline; Metal ion in concentrated water can play the effect of clay stabilizer after entering stratum, does not therefore also need to add clay stabilizer.The linking agent that the present invention adopts melon colloid system and contains zirconium, can be used in fracturing liquid in the stratafrac construction more than 150 ℃ fracturing liquid delay cross linking time 3-20min.
The accompanying drawing explanation
Fig. 1 is 140 ℃ of flow curves of frozen glue of embodiment 1 preparation.
Fig. 2 is 150 ℃ of flow curves of frozen glue of embodiment 2 preparations.
Fig. 3 is 160 ℃ of flow curves of frozen glue of embodiment 3 preparations.
Fig. 4 is 170 ℃ of flow curves of frozen glue of embodiment 4 preparations.
Embodiment
Further illustrate the present invention below in conjunction with drawings and Examples.
Embodiment 1
Add the 9939kg seawater in Agitation Tank, slowly add 40kg sulfonic group hydroxypropylguar gum, add 10kg Sulfothiorine and 1kg glutaraldehyde after circulation 10min, finally add the 10kg Trimethyllaurylammonium bromide, recirculation 10min, obtain the gelled fluid of homogeneous transparent.Adopting six fast rotational viscosimeter tested viscosity is 57mPas, and pH is 8.2.
Get the gelled fluid 1000g of preparation, add the 2g linking agent under rapid stirring, continue to stir 8min and obtain hanging frozen glue.Adopt the RS6000 rheometer to test the rheological property (see figure 1) of this frozen glue under 140 ℃.
The frozen glue 1000g that upper step is made, under agitation add the 1g ammonium persulphate, in 80 ℃ of water-baths, places 2h, the complete aquation of frozen glue, and after aquation, liquid is 3mPas by the capillary viscosimeter tested viscosity.
Embodiment 2
Add 9902kg stratum output water in Agitation Tank, slowly add 50kg sulfonic group beet alkali ampholytic guar gum, add 15kg Sulfothiorine and 3kg formaldehyde after circulation 10min, finally add the 30kg cetyl trimethylammonium bromide, recirculation 10min, obtain the gelled fluid of homogeneous transparent.Adopting six fast rotational viscosimeter tested viscosity is 66mPas, and pH is 8.5.
Get the gelled fluid 1000g of preparation, add the 4g linking agent under rapid stirring, continue to stir 7min and obtain hanging frozen glue.Adopt the RS6000 rheometer to test the rheological property (see figure 2) of this frozen glue under 150 ℃.
The frozen glue 1000g that upper step is made, under agitation add the 5g ammonium persulphate, in 80 ℃ of water-baths, places 3h, the complete aquation of frozen glue, and after aquation, liquid is 3mPas by the capillary viscosimeter tested viscosity.
Embodiment 3
Add the 9864kg seawater in Agitation Tank, slowly add 60kg sulfonic acid carboxymethyl guar gum, add 20kg Sulfothiorine and 6kg glutaraldehyde after circulation 10min, finally add the 50kg cetyl trimethylammonium bromide, recirculation 10min, obtain the gelled fluid of homogeneous transparent.Adopting six fast rotational viscosimeter tested viscosity is 78mPas, and pH is 8.7.
Get the gelled fluid 1000g of preparation, add the 6g linking agent under rapid stirring, continue to stir 5min and obtain hanging frozen glue.Adopt the RS6000 rheometer to test the rheological property (see figure 3) of this frozen glue under 160 ℃.
The frozen glue 1000g that upper step is made, under agitation add the 10g ammonium persulphate, in 80 ℃ of water-baths, places 3h, the complete aquation of frozen glue, and after aquation, liquid is 4mPas by the capillary viscosimeter tested viscosity.
Embodiment 4
Add the 9810kg seawater in Agitation Tank, slowly add 70kg sulfonic group beet alkali ampholytic guar gum, add 30kg saccharosonic acid and 10kg glutaraldehyde after circulation 10min, finally add the 80kg Trimethyllaurylammonium bromide, recirculation 10min, obtain the gelled fluid of homogeneous transparent.Adopting six fast rotational viscosimeter tested viscosity is 93mPas, and pH is 8.4.
Get the gelled fluid 1000g of preparation, add the 8g linking agent under rapid stirring, continue to stir 3min and obtain hanging frozen glue.Adopt the RS6000 rheometer to test the rheological property (see figure 4) of this frozen glue under 170 ℃.
The frozen glue 1000g that upper step is made, under agitation add the 20g ammonium persulphate, in 80 ℃ of water-baths, places 4h, the complete aquation of frozen glue, and after aquation, liquid is 2mPas by the capillary viscosimeter tested viscosity.
Claims (4)
1. a high temperature and high salinity aqueous fracturing fluid, by gelled fluid, linking agent and gel breaker, formed, it is characterized in that, described gelled fluid is comprised of following compositions in weight percentage: viscosifying agent 0.4-0.7%, cleanup additive 0.1-0.8%, sterilant 0.01-0.1%, temperature stabilising agent 0.1-0.3%, all the other seawater that are high salinity or stratum output water; The bridge ligand that the chelating ligand that the boron compound that the zirconium compounds that described linking agent is is 9-18% by mass percent, mass percent are 3-40% is 9-18% with mass percent, mass percent are 5-19% reacts the stable comple formed, the 0.2-1% that its consumption is the gelled fluid quality; Described gel breaker is ammonium persulphate or Sodium Persulfate, the 0.1-2% that its consumption is the gelled fluid quality.
2. high temperature and high salinity aqueous fracturing fluid as claimed in claim 1, is characterized in that, described viscosifying agent is sulfonic group hydroxypropylguar gum, sulfonic group beet alkali ampholytic guar gum or sulfonic acid carboxymethyl guar gum; Described cleanup additive is Trimethyllaurylammonium bromide or cetyl trimethylammonium bromide; Described sterilant is formaldehyde or glutaraldehyde; Described temperature stabilising agent is Sulfothiorine or saccharosonic acid.
3. high temperature and high salinity aqueous fracturing fluid as claimed in claim 1, it is characterized in that, in described linking agent, zirconium compounds is acetic acid zirconium or basic zirconium chloride, boron compound is boric acid or borax, chelating ligand is N, N-bis-(2-hydroxyethyl) glycine, bridge ligand is glycerol, N.F,USP MANNITOL, sorbyl alcohol, trolamine or its mixture.
4. high temperature and high salinity aqueous fracturing fluid as claimed in claim 1, is characterized in that, the preparation process of described linking agent is as follows: add the clear water that mass ratio is 5% in the enamel inner container reactor, slowly add zirconium compounds, stir 30min; Add fast chelating ligand, slowly be warmed up to 60 ℃, stir 1h; Add again boron compound, drip bridge ligand in whipping process; Stir 5h under 80 ℃, supply the water of surplus, obtain linking agent.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788937A (en) * | 2014-01-21 | 2014-05-14 | 中国海洋石油总公司 | Low-damage seawater base weighted fracturing liquid |
| CN104877658A (en) * | 2015-04-13 | 2015-09-02 | 陕西延长石油(集团)有限责任公司研究院 | Fracturing fluid prepared from high-salinity formation water and preparation method of fracturing fluid |
| CN106433598A (en) * | 2016-09-05 | 2017-02-22 | 四川省威尔敦化工有限公司 | Method for preparing agent body A and agent body B of delayed crosslinker for plant gum fracturing fluid |
| CN106432526A (en) * | 2016-10-19 | 2017-02-22 | 陕西科技大学 | Fenugreek gum containing sulfo carboxymethyl and preparation method and application of fenugreek gum |
| CN106496342A (en) * | 2016-10-19 | 2017-03-15 | 陕西科技大学 | Trigonella bean gum of hydroxypropyl containing sulfonic group and its preparation method and application |
| CN106590615A (en) * | 2016-12-07 | 2017-04-26 | 重庆科技学院 | High-temperature guanidine gum cross-linking agent and preparation method thereof |
| CN106675545A (en) * | 2015-11-18 | 2017-05-17 | 中国石油天然气集团公司 | High temperature fracturing liquid and reservior modification method |
| CN108485636A (en) * | 2018-04-16 | 2018-09-04 | 西南石油大学 | A kind of heat safe nanometer zirconium borate crosslinker and preparation method thereof |
| CN109233782A (en) * | 2018-10-08 | 2019-01-18 | 中国石油集团渤海钻探工程有限公司 | One kind being suitable for hot water preparing fracturing fluid and preparation method thereof |
| CN110079294A (en) * | 2019-05-30 | 2019-08-02 | 四川格鑫拓科技有限公司 | A kind of high temperature resistant weighted fracture fluid and preparation method thereof |
| CN111040752A (en) * | 2018-10-11 | 2020-04-21 | 中国石油化工股份有限公司 | Low-adsorption fracturing fluid system and preparation method thereof |
| CN114561203A (en) * | 2022-04-11 | 2022-05-31 | 西南石油大学 | High-salinity water-based delayed cross-linking gel fracturing fluid and preparation method thereof |
| RU2809114C1 (en) * | 2023-03-21 | 2023-12-06 | Общество с ограниченной ответственностью "Апстрим Групп" (ООО "Апстрим Групп") | Method for preparing hydraulic fracturing fluid using solid carbon dioxide |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788937A (en) * | 2014-01-21 | 2014-05-14 | 中国海洋石油总公司 | Low-damage seawater base weighted fracturing liquid |
| CN104877658A (en) * | 2015-04-13 | 2015-09-02 | 陕西延长石油(集团)有限责任公司研究院 | Fracturing fluid prepared from high-salinity formation water and preparation method of fracturing fluid |
| CN106675545A (en) * | 2015-11-18 | 2017-05-17 | 中国石油天然气集团公司 | High temperature fracturing liquid and reservior modification method |
| CN106675545B (en) * | 2015-11-18 | 2020-04-10 | 中国石油天然气集团公司 | High-temperature fracturing fluid and reservoir transformation method |
| CN106433598A (en) * | 2016-09-05 | 2017-02-22 | 四川省威尔敦化工有限公司 | Method for preparing agent body A and agent body B of delayed crosslinker for plant gum fracturing fluid |
| CN106432526A (en) * | 2016-10-19 | 2017-02-22 | 陕西科技大学 | Fenugreek gum containing sulfo carboxymethyl and preparation method and application of fenugreek gum |
| CN106496342A (en) * | 2016-10-19 | 2017-03-15 | 陕西科技大学 | Trigonella bean gum of hydroxypropyl containing sulfonic group and its preparation method and application |
| CN106590615A (en) * | 2016-12-07 | 2017-04-26 | 重庆科技学院 | High-temperature guanidine gum cross-linking agent and preparation method thereof |
| CN108485636B (en) * | 2018-04-16 | 2019-09-17 | 西南石油大学 | A kind of nanometer zirconium borate crosslinker resistant to high temperature and preparation method thereof |
| CN108485636A (en) * | 2018-04-16 | 2018-09-04 | 西南石油大学 | A kind of heat safe nanometer zirconium borate crosslinker and preparation method thereof |
| CN109233782A (en) * | 2018-10-08 | 2019-01-18 | 中国石油集团渤海钻探工程有限公司 | One kind being suitable for hot water preparing fracturing fluid and preparation method thereof |
| CN111040752A (en) * | 2018-10-11 | 2020-04-21 | 中国石油化工股份有限公司 | Low-adsorption fracturing fluid system and preparation method thereof |
| CN111040752B (en) * | 2018-10-11 | 2022-03-25 | 中国石油化工股份有限公司 | Low-adsorption fracturing fluid system and preparation method thereof |
| CN110079294A (en) * | 2019-05-30 | 2019-08-02 | 四川格鑫拓科技有限公司 | A kind of high temperature resistant weighted fracture fluid and preparation method thereof |
| CN114561203A (en) * | 2022-04-11 | 2022-05-31 | 西南石油大学 | High-salinity water-based delayed cross-linking gel fracturing fluid and preparation method thereof |
| CN114561203B (en) * | 2022-04-11 | 2023-08-29 | 西南石油大学 | High-mineralization water-based delayed crosslinking gel fracturing fluid and preparation method thereof |
| RU2809114C1 (en) * | 2023-03-21 | 2023-12-06 | Общество с ограниченной ответственностью "Апстрим Групп" (ООО "Апстрим Групп") | Method for preparing hydraulic fracturing fluid using solid carbon dioxide |
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