CN104371702A - Discharge adding agent for fracturing and acidizing - Google Patents
Discharge adding agent for fracturing and acidizing Download PDFInfo
- Publication number
- CN104371702A CN104371702A CN201410609253.9A CN201410609253A CN104371702A CN 104371702 A CN104371702 A CN 104371702A CN 201410609253 A CN201410609253 A CN 201410609253A CN 104371702 A CN104371702 A CN 104371702A
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- China
- Prior art keywords
- discharge
- adding agent
- fracturing
- parts
- cleanup additive
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
- C09K8/76—Eroding chemicals, e.g. acids combined with additives added for specific purposes for preventing or reducing fluid loss
Abstract
The invention discloses a discharge adding agent for fracturing and acidizing, which can ensure the effective discharge of a fracturing fluid and has a water-lock prevention effect. The discharge adding agent is prepared from the following raw materials in parts by weight: 10-20 parts of isopropanol, 30-40 parts of potassium chloride, 30-40 parts of sodium chloride, 0.005-0.02 part of perfluoroheptyl sodium and 20-30 parts of erucamidopropyl sulfobetaine. When being used for fracturing and acidizing oil and gas wells, the discharge adding agent is diluted by water, and then heated to the temperature of 45 DEG C and added into a construction fluid. By using the discharge adding agent disclosed by the invention, the discharge of the working fluid of a well in operation and the protection of an oil reservoir can be realized at the same time. The discharge adding agent has the characteristic of uniform distribution of the working fluid and the effect of acid sensitivity resistance and is easy and convenient to use. The construction times can be reduced due to the adoption of the discharge adding agent, thus the discharge adding agent can be used widely.
Description
Technical field
The invention belongs to oilfield chemical auxiliary technical field, particularly relate to a kind of fracture acidizing cleanup additive and application thereof.
Background technology
Fracturing liquid is the key factor of pressing crack construction, and its performance also can have a huge impact the reconstruction of oil and gas pools effect after construction except directly having influence on the success ratio of waterfrac treatment construction.The performance of fracture acidizing cleanup additive plays vital effect to of the fracturing fluid performance.For no matter being interlayer or in-layer heterogeneity reservoir, the releasing of the effective layout of fracturing liquid in whole processing layer to injury plays a part very crucial.The core intersection of Dagang Oilfield is large, series of strata are many, so when full well section fracture acidizing, easily cause working fluid enter most permeable zone and cause leakage.
Summary of the invention
The object of the invention is the technological deficiency for existing in prior art, and a kind of fracture acidizing cleanup additive is provided, it can also make construction working liquid be uniformly distributed while guarantee effectively makes fracturing liquid carry out the row of returning, and reaches the effect evenly improving wellbore zone permeability.
The technical scheme adopted for realizing object of the present invention is:
A kind of fracture acidizing cleanup additive, raw material by weight consists of: Virahol 10-20, Repone K 30-40, sodium-chlor 30-40, perfluor heptyl sodium sulfonate 0.005-0.02, erucicamide propylsultaine trimethyl-glycine 20-30.
Preferred: Virahol 12, Repone K 30, sodium-chlor 30, perfluor heptyl sodium sulfonate 0.015, erucicamide propylsultaine trimethyl-glycine 27.985.
An application for fracture acidizing cleanup additive, by fracture acidizing with cleanup additive dilute with water post-heating to 45 DEG C, then join construction liquid in, for oil gas water well pressure break and acidizing treatment.
Compared with prior art, the invention has the beneficial effects as follows:
1, fracture acidizing cleanup additive of the present invention can also have the feature of even branch working fluid while ensureing effectively to make fracturing liquid carry out the row of returning, can construction operation liquid sphere of action wider.Achieve to construction in working fluid be uniformly distributed and the working fluid of well in operation returns once carrying out of row, save construction times, application prospect is extensive.
2, fracture acidizing cleanup additive of the present invention has the good row's of returning property, and make working fluid viscosity automatically to reduce after running into crude oil, can not remain, flowback effect is better.
3, fracture acidizing cleanup additive of the present invention also has antiacid quick effect.
4, fracture acidizing cleanup additive of the present invention is easy to use.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1
By Virahol 12Kg, Repone K 30Kg, sodium-chlor 30Kg, perfluor heptyl sodium sulfonate 0.015Kg, erucicamide propylsultaine trimethyl-glycine 27.985Kg mixes, and obtains fracture acidizing cleanup additive.Be diluted with water to concentration during use for 1-2%, be then heated to 45 DEG C, then join in fracturing liquid.Outward appearance is colourless or weak yellow liquid, and pH value is 5 ~ 9, and density is 0.95-1.05, g/cm
3, surface tension (0.3%)≤28.5mN/m, interfacial tension≤3.2mN/m, thermostability (150 DEG C)≤2mN/m.
Embodiment 2
By Virahol 15Kg, Repone K 35Kg, sodium-chlor 35Kg, perfluor heptyl sodium sulfonate 0.01Kg, erucicamide propylsultaine trimethyl-glycine 14.99Kg mixes, and obtains fracture acidizing cleanup additive.Be diluted with water to concentration during use for 1-2%, be then heated to 45 DEG C, then join in fracturing liquid.Outward appearance is colourless or weak yellow liquid, and pH value is 5 ~ 9, and density is 0.95-1.05, g/cm
3, surface tension (0.3%)≤28.5mN/m, interfacial tension≤3.2mN/m, thermostability (150 DEG C)≤2mN/m.
Embodiment 3
By Virahol 13Kg, Repone K 32Kg, sodium-chlor 30Kg, perfluor heptyl sodium sulfonate 0.015Kg, erucicamide propylsultaine trimethyl-glycine 24.985Kg mixes, and obtains fracture acidizing cleanup additive.Be diluted with water to concentration during use for 1-2%, be then heated to 45 DEG C, then join in fracturing liquid.Outward appearance is colourless or weak yellow liquid, and pH value is 5 ~ 9, and density is 0.95-1.05, g/cm
3, surface tension (0.3%)≤28.5mN/m, interfacial tension≤3.2mN/m, thermostability (150 DEG C)≤2mN/m.
Embodiment 4
By Virahol 10Kg, Repone K 37Kg, sodium-chlor 30Kg, perfluor heptyl sodium sulfonate 0.01Kg, erucicamide propylsultaine trimethyl-glycine 22.99Kg mixes, and obtains fracture acidizing cleanup additive.Be diluted with water to concentration during use for 1-2%, be then heated to 45 DEG C, then join in fracturing liquid.Outward appearance is colourless or weak yellow liquid, and pH value is 5 ~ 9, and density is 0.95-1.05, g/cm
3, surface tension (0.3%)≤28.5mN/m, interfacial tension≤3.2mN/m, thermostability (150 DEG C)≤2mN/m.
Embodiment 5
By Virahol 13Kg, Repone K 33Kg, sodium-chlor 33Kg, perfluor heptyl sodium sulfonate 0.015Kg, erucicamide propylsultaine trimethyl-glycine 20.985Kg, mixes, obtains fracture acidizing cleanup additive.Be diluted with water to concentration during use for 1-2%, be then heated to 45 DEG C, then join in fracturing liquid.Outward appearance is colourless or weak yellow liquid, and pH value is 5 ~ 9, and density is 0.95-1.05, g/cm
3, surface tension (0.3%)≤28.5mN/m, interfacial tension≤3.2mN/m, thermostability (150 DEG C)≤2mN/m.
Along with the construction liquid containing fracture acidizing cleanup additive of the present invention injects stratum gradually, and spread gradually.Containing many kinds of substance in fracturing liquid, the change along with pH value makes of the fracturing fluid viscosity change, and follow-up work liquid is evenly distributed in stratum.In construction process, working fluid is mixed into soil layer, after construction terminates, fracturing liquid not only can stay in a large number different do not allow diffluent material formed blocking, also can increase surface tension and cause water-blocking effect to pollute.Fracture acidizing cleanup additive of the present invention can not only reduce the surface tension of construction liquid and the interfacial tension between construction liquid and crude oil, and effectively can also prevent oil-water emulsion and energy breakdown of emulsion rapidly, reduce resistance, the discharge speed improving construction liquid leads with the row of returning.It has very strong compatibleness and higher resistance to elevated temperatures, and fracturing liquid can be made in the longer time to carry out brokenly glue, the Virahol in the present invention is fully dissolved and plays a protective role, be applicable to the oil gas water well of all kinds of degree of depth.
Claims (3)
1. a fracture acidizing cleanup additive, is characterized in that, raw material by weight consists of: Virahol 10-20, Repone K 30-40, sodium-chlor 30-40, perfluor heptyl sodium sulfonate 0.005-0.02, erucicamide propylsultaine trimethyl-glycine 20-30.
2. fracture acidizing cleanup additive according to claim 1, is characterized in that, raw material by weight consists of: Virahol 12, Repone K 30, sodium-chlor 30, perfluor heptyl sodium sulfonate 0.015, erucicamide propylsultaine trimethyl-glycine 27.985.
3. an application for fracture acidizing cleanup additive according to claim 1, by fracture acidizing cleanup additive dilute with water post-heating according to claim 1 to 45 DEG C, then joins in construction liquid, for oil gas water well pressure break and acidizing treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609253.9A CN104371702A (en) | 2014-11-03 | 2014-11-03 | Discharge adding agent for fracturing and acidizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609253.9A CN104371702A (en) | 2014-11-03 | 2014-11-03 | Discharge adding agent for fracturing and acidizing |
Publications (1)
| Publication Number | Publication Date |
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| CN104371702A true CN104371702A (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410609253.9A Pending CN104371702A (en) | 2014-11-03 | 2014-11-03 | Discharge adding agent for fracturing and acidizing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190085A (en) * | 2016-07-19 | 2016-12-07 | 郑州鑫源防磨耐材有限公司 | A kind of pressure break cleanup additive and preparation method thereof |
| CN107603585A (en) * | 2017-10-24 | 2018-01-19 | 中石化石油工程技术服务有限公司 | High-efficient, no-freon pressure break cleanup additive and preparation method |
| CN108239532A (en) * | 2016-12-26 | 2018-07-03 | 中国石油化工股份有限公司 | A kind of shale pressure break slippery water cleanup additive, preparation method and application |
| CN109135718A (en) * | 2018-09-28 | 2019-01-04 | 黄旭东 | A kind of preparation method of fracture acidizing blistering cleanup additive |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190085A (en) * | 2016-07-19 | 2016-12-07 | 郑州鑫源防磨耐材有限公司 | A kind of pressure break cleanup additive and preparation method thereof |
| CN108239532A (en) * | 2016-12-26 | 2018-07-03 | 中国石油化工股份有限公司 | A kind of shale pressure break slippery water cleanup additive, preparation method and application |
| CN107603585A (en) * | 2017-10-24 | 2018-01-19 | 中石化石油工程技术服务有限公司 | High-efficient, no-freon pressure break cleanup additive and preparation method |
| CN109135718A (en) * | 2018-09-28 | 2019-01-04 | 黄旭东 | A kind of preparation method of fracture acidizing blistering cleanup additive |
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Application publication date: 20150225 |
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