CN103911138A - Density adjustable type composite weighted fracturing fluid - Google Patents
Density adjustable type composite weighted fracturing fluid Download PDFInfo
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- CN103911138A CN103911138A CN201410171748.8A CN201410171748A CN103911138A CN 103911138 A CN103911138 A CN 103911138A CN 201410171748 A CN201410171748 A CN 201410171748A CN 103911138 A CN103911138 A CN 103911138A
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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
- C09K8/602—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
- C09K8/605—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
- C09K8/607—Compositions for stimulating production by acting on the underground formation specially adapted for clay formations
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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
- C09K8/84—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
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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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Abstract
The invention discloses density adjustable type composite weighted fracturing fluid. The density adjustable type composite weighted fracturing fluid is prepared from the following components in percentage by mass: 0.25-1.0% of thickening agent, 0.2-0.6% of clay stabilizer, 0.2-0.6% of cleanup agent, 0.2-0.6% of foaming agent, 0.1-0.5% of temperature stabilizer, 0.03-0.3% of PH regulator, 0.05-0.5% of sterilizing agent, 0.3-1.0% of crosslinking agent, 1-80% of weighting agent and the balance of water, wherein the weighting agent is one of or a mixture of two of sodium chloride, potassium chloride, sodium bromide and potassium bromide. The density adjustable type composite weighted fracturing fluid disclosed by the invention can be applied to the fracturing construction of deep well compact oil and gas reservoirs and is capable of effectively achieving the purposes of reducing construction pressure, thus a ground pressure-bearing manifold can be protected.
Description
Technical field
The present invention relates to one to the compound weighted fracture fluid of Reservoir Development density adjustable type used, this fracturing fluid system is especially for the fracturing fluid system of high pressure, super dark or fine and close hydrocarbon-bearing pool reservoir reconstruction.
Background technology
Along with the day by day increase of national economy to energy demand, oil-gas exploration and development is to deep layer, low permeability layer development.As everyone knows, deep-well, low permeability reservoir exploitation be unable to do without fracturing yield increasing transformation, for the fine and close hydrocarbon-bearing pool reservoir of deep-well, formation-parting pressure superelevation is again to implement sandfrac to transform one of maximum bottleneck difficult problem, and the high parting pressure layer construction of deep-well often causes wellhead pressure to exceed the bearing capacity of ground pumping-in equipment.
In order to solve an above difficult problem, propose to increase the weight of the thinking of liquid, the mode that increases fracturing liquid fluid column pressure in pit shaft by employing reduces the object of operation pressure.Although use traditionally undissolvable solid particulate can effectively increase fluid column pressure, insufficient even can not the discharge of the row of returning polluted stratum, and it is dangerous to increase construction, easily causes the situations such as instantaneous high pressure to occur.
Fracturing liquid is increased the weight of, can not affect of the fracturing fluid performance simultaneously, because the crosslinked environment of the viscosifying agent generally using mostly at present is alkaline condition, if use an alkali metal salt and the basic salt will production precipitation of hydroxide, and a large amount of basic salts make the alkalescence of solution partially strong, although viscosifying agent can disperse well, can not hydration increase glutinous.So high-density weighting material is generally selected Sodium Bromide and Potassium Bromide, the cost compare of these two kinds of salts is high.
The at present domestic use weighted fracture fluid that also occurs successively, still the domestic research to weighted fracture fluid is at the early-stage, therefore carries out weighted fracture fluid research and needs to be further developed.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of solubility salt that adopts to increase the weight of, and increases safely and effectively fluid column pressure, thereby lowers the compound weighted fracture fluid of adjustable type of well head operation pressure density.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the compound weighted fracture fluid of a kind of density adjustable type, formulated by following component by mass percentage:
Surplus is water
Described weighting agent is the mixture of one or both any ratios in sodium-chlor, Repone K, Sodium Bromide, Potassium Bromide.
Described thickening material is the one in hydroxypropyl level guanidine glue and APCF.
Described clay stabilizer is low-molecular-weight hydro-polyacrylamide.
Described cleanup additive is one or both of alkyl sulfonates and alkyl benzene sulfonate.
Described whipping agent is one or both in betaines, lipid acid lipid.
Described temperature stabilising agent is the one in reducible sulfur compound and sulphite.
Described PH conditioning agent is the one in sodium hydroxide and sodium carbonate.
Described sterilant is one or both in bi-quaternary ammonium salt class and formaldehydes.
Described linking agent is one or more in organic boron class, organic zirconium class and organic titanium class.
The invention has the beneficial effects as follows: can be applied to the fine and close hydrocarbon-bearing pool reservoir fracturing construction of deep-well, can effectively reach the object that reduces operation pressure, thereby can protect ground pressure-bearing manifold.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
The compound weighted fracture fluid of density adjustable type of the present invention, formulated by following component by mass percentage:
Surplus is water
Described weighting agent is the mixture of one or both any ratios in sodium-chlor, Repone K, Sodium Bromide, Potassium Bromide.
Described thickening material is the one in hydroxypropyl level guanidine glue and APCF.
Described clay stabilizer is low-molecular-weight hydro-polyacrylamide.
Described cleanup additive is one or both of alkyl sulfonates and alkyl benzene sulfonate.
Described whipping agent is one or both in betaines, lipid acid lipid.
Described temperature stabilising agent is the one in reducible sulfur compound and sulphite.
Described PH conditioning agent is the one in sodium hydroxide and sodium carbonate.
Described sterilant is one or both in bi-quaternary ammonium salt class and formaldehydes.
Described linking agent is one or more in organic boron class, organic zirconium class and organic titanium class.
The per-cent of mentioning in following embodiment is mass percent, is mass ratio than number.
When fracturing liquid density is at 1.20g/cm
3time, need to add 28% weighting agent, weighting agent is the compound of Repone K and sodium-chlor, Repone K: sodium-chlor=1:3; When density is at 1.30g/cm
3time need to add 37% weighting agent, weighting agent is the compound of Repone K and Sodium Bromide, Repone K: Sodium Bromide=1:2; Density is at 1.40g/cm
3time need to add 45% weighting agent, weighting agent is the compound of Repone K and Sodium Bromide, Repone K: Sodium Bromide=1:5.
Ratio of 1:0.45 g thickener (Dongying, Shandong source of Industry and Trade LLC / hydroxypropyl guar gum) +0.25 g of sodium carbonate +0.5 g cleanup additive (Bohai Drilling Engineering Company of China Petroleum Engineering Technology Research Institute / BZ measures used to help schedule agent) +0.5 g foaming agent (Bohai Drilling Engineering Company of China Petroleum Engineering technology Research Institute / BZ fracturing) +0.3 g clay stabilizer (Bohai Drilling Engineering Company of China Petroleum Engineering technology Research Institute with the blowing agent / BZ measures with anti-swelling agent) +0.25 g crosslinking agent (Bohai Drilling Engineering Company of China Petroleum Engineering technology Research Institute / BZ fracturing organic boron crosslinker) +28 g weighting agent (sodium chloride and potassium chloride complex substance potassium: sodium chloride = 1:3) +0.1 g fungicide (technology Research Institute of Bohai drilling Engineering Company of China Petroleum Engineering / BZ measures fungicide) +69.65 g water.Temperature is 100 DEG C, and density is 1.20g/cm
3.
Ratio of 2:0.55 g thickener (Dongying, Shandong source of Industry and Trade LLC / hydroxypropyl guar gum) +0.05 g NaOH +0.5 g cleanup additive (Bohai Drilling Engineering Company of China Petroleum Engineering Technology Research Institute / +0.3 g clay stabilizer (Bohai Drilling Engineering Company of China Petroleum Engineering Technology Research Institute +0.5 g foaming agent (technology Research Institute of Bohai drilling Engineering Company of China Petroleum Engineering / BZ fracturing foaming agent) BZ measures used to help schedule agent) / BZ measures Bohai Drilling Engineering Company of China Petroleum Engineering studies with anti-swelling agent) +0.2 g temperature stabilizer (Bohai Drilling Engineering Company of China Petroleum Engineering technology Research Institute / BZ fracturing temperature stabilizer) +0.4 g crosslinking agent (hospital / BZ fracturing organic boron crosslinker) +37 g weighting agent (potassium chloride and sodium bromide complex matter KCl: sodium bromide = 1:2) +60.5 g of water.Temperature is 130 DEG C, and density is 1.30g/cm
3.
Ratio of 3:0.6 g hydroxypropyl guar gum +0.15 g NaOH +0.5 g (Technology Research Institute of Bohai Drilling Engineering Company of China Petroleum Engineering / BZ measures used to help schedule agent) +0.5 g (Bohai Drilling Engineering Company of China Petroleum Engineering technology Research Institute / BZ fracturing foaming agent) +0.3 g clay stabilizer (technology Research Institute of Bohai drilling Engineering Company of China Petroleum Engineering / BZ measures) +0.2 g (Bohai Drilling Engineering Company of China Petroleum Engineering Technology Research with anti-swelling agent hospital / BZ fracturing) +0.1 g fungicide (technology Research Institute of Bohai drilling Engineering Company of China Petroleum Engineering / BZ measures fungicide) +0.6 g crosslinkers Institute of Technology with a temperature stabilizer (Bohai Drilling Engineering Company of China Petroleum Engineering / BZ fracturing organic boron crosslinker) +45 g weighting agent (potassium chloride and sodium bromide, potassium chloride complex matter: sodium Bromide = 1:5) +52.05 g water.Temperature is 150 DEG C, and density is 1.40g/cm
3.
Proportioning 4:0.4g thickening material (Beijing Ai Pu polymerization Science and Technology Ltd./APCF)+0.2g linking agent (Beijing Ai Pu polymerization Science and Technology Ltd./APCF-B)+20g weighting agent (Repone K and sodium-chlor compound Repone K: sodium-chlor=1:3)+79.4g water.Temperature is 100 DEG C, and density is 1.15g/cm
3.
Compound method is, first adds water, then adds weighting agent, after weighting agent dissolves, adds thickening material, when after liquid viscosity >=60mPas, then adds other additives.
Be Engineering Projects below
1, the 25-8-6 of Soviet Union well depth 3187.0-3191.0m, 100 DEG C of temperature, the high-density guanidine gum fracturing fluid of use formula 1, density is 1.20g/cm
3, operational discharge capacity 3m
3/ min, adds sand amount 30m
3, average sand is than 19.3%, and operation pressure is 46MPa.
2, the 25-6-25 of Soviet Union well depth 3208.9-3213.0m, 100 DEG C of temperature, the high-density APCF fracturing liquid of use formula 4, density is 1.15g/cm
3, operational discharge capacity 3.5m
3/ min, adds sand amount 31.5m
3, average sand is than 21.3%, and operation pressure is 47MPa.
3, the dark 24-1 well depth in shore 4231.2-4232.3m, 150 DEG C of temperature, the high-density guanidine gum fracturing fluid of use formula 2, density is 1.30g/cm
3, operational discharge capacity 4.5m
3/ min, adds sand amount 60m
3, average sand is than 20%, and operation pressure is 61.2MPa.
Weighted fracture fluid of the present invention, can be applied to high pressure, super dark or fine and close hydrocarbon-bearing pool reservoir reconstruction.Density is adjustable and temperature resistant range is wide, and Amplitude of Hypotensive generally, more than 20%, even can reach 39%.Dosing is simple, and well head bearing device can be effectively protected in easy construction.
In sum, content of the present invention is not limited in the above-described embodiment, and the knowledgeable people in same area can propose easily other embodiment within technical director's thought of the present invention, but this embodiment comprises within the scope of the present invention.
Claims (9)
1. the compound weighted fracture fluid of density adjustable type, is characterized in that, formulated by following component by mass percentage:
Surplus is water
Described weighting agent is the mixture of one or both any ratios in sodium-chlor, Repone K, Sodium Bromide, Potassium Bromide.
2. the compound weighted fracture fluid of density adjustable type according to claim 1, is characterized in that, described thickening material is the one in hydroxypropyl level guanidine glue and APCF.
3. the compound weighted fracture fluid of density adjustable type according to claim 1, is characterized in that, described clay stabilizer is low-molecular-weight hydro-polyacrylamide.
4. the compound weighted fracture fluid of density adjustable type according to claim 1, is characterized in that, described cleanup additive is one or both of alkyl sulfonates and alkyl benzene sulfonate.
5. the compound weighted fracture fluid of density adjustable type according to claim 1, is characterized in that, described whipping agent is one or both in betaines, lipid acid lipid.
6. the compound weighted fracture fluid of density adjustable type according to claim 1, is characterized in that, described temperature stabilising agent is the one in reducible sulfur compound and sulphite.
7. the compound weighted fracture fluid of density adjustable type according to claim 1, is characterized in that, described PH conditioning agent is the one in sodium hydroxide and sodium carbonate.
8. the compound weighted fracture fluid of density adjustable type according to claim 1, is characterized in that, described sterilant is one or both in bi-quaternary ammonium salt class and formaldehydes.
9. the compound weighted fracture fluid of density adjustable type according to claim 1, is characterized in that, described linking agent is one or more in organic boron class, organic zirconium class and organic titanium class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171748.8A CN103911138A (en) | 2014-04-25 | 2014-04-25 | Density adjustable type composite weighted fracturing fluid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410171748.8A CN103911138A (en) | 2014-04-25 | 2014-04-25 | Density adjustable type composite weighted fracturing fluid |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295885A (en) * | 2015-11-06 | 2016-02-03 | 中国石油化工股份有限公司 | Acid polymer weighted fracture fluid and preparation method thereof |
| CN105331350A (en) * | 2014-08-13 | 2016-02-17 | 中国石油集团渤海钻探工程有限公司 | Low-residue starch fracturing fluid |
| CN105778879A (en) * | 2016-04-06 | 2016-07-20 | 长江大学 | High-temperature self-assembled salt weightedfracturing liquid system |
| CN105985763A (en) * | 2015-02-13 | 2016-10-05 | 中国石油天然气股份有限公司 | Weighted fracturing fluid with low guar gum concentration |
| CN107338040A (en) * | 2017-08-11 | 2017-11-10 | 中国石油集团渤海钻探工程有限公司 | A kind of organic boron weighted fracture fluid and preparation method thereof |
| CN108641700A (en) * | 2018-05-18 | 2018-10-12 | 陕西省石油化工研究设计院 | A kind of multiple-effect fracturing aid and the preparation method and application thereof |
| CN112696197A (en) * | 2020-12-30 | 2021-04-23 | 中国石油天然气集团有限公司 | Oil field reservoir index curve construction method, system, equipment and storage medium |
Citations (2)
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|---|---|---|---|---|
| CN102093875A (en) * | 2010-12-08 | 2011-06-15 | 中国石油集团西部钻探工程有限公司 | Super guar gum foamed fracturing fluid injected with liquid nitrogen for low-permeability gas reservoir and preparation method thereof |
| CN104178101A (en) * | 2013-05-21 | 2014-12-03 | 中国石油化工股份有限公司 | Weighted fracturing fluid |
-
2014
- 2014-04-25 CN CN201410171748.8A patent/CN103911138A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093875A (en) * | 2010-12-08 | 2011-06-15 | 中国石油集团西部钻探工程有限公司 | Super guar gum foamed fracturing fluid injected with liquid nitrogen for low-permeability gas reservoir and preparation method thereof |
| CN104178101A (en) * | 2013-05-21 | 2014-12-03 | 中国石油化工股份有限公司 | Weighted fracturing fluid |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331350A (en) * | 2014-08-13 | 2016-02-17 | 中国石油集团渤海钻探工程有限公司 | Low-residue starch fracturing fluid |
| CN105331350B (en) * | 2014-08-13 | 2018-12-25 | 中国石油集团渤海钻探工程有限公司 | low residue starch fracturing fluid |
| CN105985763A (en) * | 2015-02-13 | 2016-10-05 | 中国石油天然气股份有限公司 | Weighted fracturing fluid with low guar gum concentration |
| CN105985763B (en) * | 2015-02-13 | 2019-12-10 | 中国石油天然气股份有限公司 | Weighted fracturing fluid with low guar gum concentration |
| CN105295885A (en) * | 2015-11-06 | 2016-02-03 | 中国石油化工股份有限公司 | Acid polymer weighted fracture fluid and preparation method thereof |
| CN105778879A (en) * | 2016-04-06 | 2016-07-20 | 长江大学 | High-temperature self-assembled salt weightedfracturing liquid system |
| CN107338040A (en) * | 2017-08-11 | 2017-11-10 | 中国石油集团渤海钻探工程有限公司 | A kind of organic boron weighted fracture fluid and preparation method thereof |
| CN108641700A (en) * | 2018-05-18 | 2018-10-12 | 陕西省石油化工研究设计院 | A kind of multiple-effect fracturing aid and the preparation method and application thereof |
| CN108641700B (en) * | 2018-05-18 | 2020-10-09 | 陕西省石油化工研究设计院 | Multi-effect fracturing additive and preparation method and application thereof |
| CN112696197A (en) * | 2020-12-30 | 2021-04-23 | 中国石油天然气集团有限公司 | Oil field reservoir index curve construction method, system, equipment and storage medium |
| CN112696197B (en) * | 2020-12-30 | 2024-05-14 | 中国石油天然气集团有限公司 | Oilfield reservoir index curve construction method, system, equipment and storage medium |
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Application publication date: 20140709 |