CN102329604A - Ultra-high-temperature fracturing fluid for ancient buried hill granite - Google Patents
Ultra-high-temperature fracturing fluid for ancient buried hill granite Download PDFInfo
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- CN102329604A CN102329604A CN201110304724A CN201110304724A CN102329604A CN 102329604 A CN102329604 A CN 102329604A CN 201110304724 A CN201110304724 A CN 201110304724A CN 201110304724 A CN201110304724 A CN 201110304724A CN 102329604 A CN102329604 A CN 102329604A
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Abstract
The invention relates to the technical field of super-deep well fracturing processes of oil fields, in particular to an ultra-high-temperature fracturing fluid for ancient buried hill granite. The fracturing fluid comprises the following components in percentage by mass: 0.4 to 0.7 percent of hydroxypropyl guar gel, 0.1 to 0.7 percent of organic boron-zirconium crosslinking agent, 0.3 to 0.6 percent of clay stabilizer, 0.05 to 0.6 percent of bactericide, 0.02 to 0.4 percent of pH regulator, 0.1 to 0.6 percent of temperature stabilizer, 0.2 to 0.7 percent of discharge aiding agent, 100 to 1,500ppm of ammonium persulfate, 1 to 4 percent of KCl and 91 to 98 percent of water. The requirements of production increase transformation conditions of strata at the temperature of 150 DEG C and above and the unique geological characteristics of the ancient buried hill granite are met. The disadvantage that the conventional organic boron crosslinking agent cannot meet the requirements of geological conditions of 150 DEG C of the ancient buried hill granite is overcome.
Description
Technical field:
The present invention relates to a kind of oil field ultra deep well fracturing technology technical field, particularly a kind of buried hill grouan super-high temperature fracturing fluid that is used for.
Background technology:
Domestic fracturing yield increasing modification measures, most of well temperature between 60-120 ℃, more than 50% of shared low permeability reservoirs.Domestic organic boron fracturing liquid technology can satisfy the requirement of reservoir temperature.Yet; Along with going deep into of raising the output modification measures; Transform well depth and become gradually greatly, well temperature even be higher than 150 ℃, and such well gets more and more; Present organic borate cross-linker can not satisfy the requirement of the geologic condition of 150 ℃ in Liaohe Oil Field buried hill grouan, need develop a kind of novel super-high temperature fracturing fluid formula system.
Summary of the invention:
The technical problem that the present invention will solve provides a kind of buried hill grouan super-high temperature fracturing fluid that is used for, and this fracturing liquid has realized that satisfied temperature is the requirement of the exclusive geological characteristics of 150 ℃ and above stratum raising the output transformation condition and buried hill grouan.Overcome the deficiency that existing organic borate cross-linker can not satisfy the requirement of 150 ℃ of geologic conditions of buried hill grouan.
The technical scheme that the present invention taked is: a kind of buried hill grouan super-high temperature fracturing fluid that is used for, and this of the fracturing fluid each moity and mass percent thereof are: hydroxypropyl guar gum 0.4-0.7%, organic boron zirconium crosslink agent 0.1-0.7%; Clay stabilizer 0.3-0.6%, sterilant 0.05-0.6%, pH regulator agent 0.02-0.4%; Temperature stabilising agent 0.1-0.6%, cleanup additive 0.2-0.7%, ammonium persulphate 100ppm-1500ppm; KCl 1%-4%, water 91%-98%.
It is 27.5%～52% weighting agent that above-mentioned fracturing liquid can add mass percent.
The invention has the beneficial effects as follows: the present invention is owing to adopted the mode of the moity preparation of above-mentioned mass percent; Thereby has an effect that satisfied temperature is the requirement of the exclusive geological characteristics of 150 ℃ and above stratum raising the output transformation condition and buried hill grouan; In addition; The present invention can regulate fracturing liquid density, presses the job requirements of too high well with face-pumping contentedly.
Embodiment:
A kind of buried hill grouan super-high temperature fracturing fluid that is used for, this of the fracturing fluid each moity and mass percent thereof are: hydroxypropyl guar gum 0.4-0.7%, organic boron zirconium crosslink agent 0.1-0.7%; Clay stabilizer 0.3-0.6%, sterilant 0.05-0.6%, pH regulator agent 0.02-0.4%; Temperature stabilising agent 0.1-0.6%, cleanup additive 0.2-0.7%, ammonium persulphate 100ppm-1500ppm; KCl 1%-4%, water 91%-98%.
Above-mentioned fracturing liquid is according to strata condition, can add mass percent and be 27.5%～52% weighting agent.
Embodiment 1
Take by weighing 3.0g hydroxypropyl guanidine glue, 5gKCl mixes under solid phase, add 500ml water and (, add weighting agent like need according to strata condition; Promptly add 190～409g fully be dissolved in the water regulate density), add sterilant 0.5ml, cleanup additive 2.5ml; Clay stabilizer 1.5ml, temperature stabilising agent 1ml, pH regulator agent 0.02g; The ammonium persulphate that adds 20ppm again between VR to the 50～55V with the transformation unit, mixes above-mentioned each moity Wu Yin that is added in slowly in the accent device then successively; Stir 6-12min; After waiting to stir liquid is put into 30 ℃ of water-baths of constant temperature and leave standstill constant temperature 4h, base fluid viscosity is tended towards stability, recording base fluid viscosity is 101mPa.s.
In the graduated cylinder of 100ml, add the organic boron zirconium crosslink agent of 10ml, thin up is poured in the beaker to the 100ml scale then, forms uniform organic boron zirconium crosslink agent.
Get above-mentioned base fluid 100mL, add organic boron zirconium crosslink agent 2～3ml that dilution finishes, at the uniform velocity stir clockwise, make fracturing liquid be cross-linked to form frozen glue, in the time can hanging or pour out a glass ancient piece of jade, round, flat and with a hole in its centre, have three cun tongue shapes to be as the criterion with glass stick.
The present invention carries out the evaluation of heatproof rheological property; When 170S-1 and 150 ℃, shear 90min; Final viscosity far surpasses more than the 50mPs, and viscosity degradation is slower, behind 60min, is metastable state basically; Demonstrate excellent anti-shear performance, can satisfy on-the-spot construction requirement fully.
It is understandable that; More than about specific descriptions of the present invention; Only be used to the present invention is described and be not to be subject to the described technical scheme of the embodiment of the invention; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention, to reach identical technique effect; As long as satisfy the use needs, all within protection scope of the present invention.
Claims (2)
1. one kind is used for buried hill grouan super-high temperature fracturing fluid, it is characterized in that: this of the fracturing fluid each moity and mass percent thereof are: hydroxypropyl guar gum 0.4-0.7%, organic boron zirconium crosslink agent 0.1-0.7%; Clay stabilizer 0.3-0.6%, sterilant 0.05-0.6%, pH regulator agent 0.02-0.4%; Temperature stabilising agent 0.1-0.6%, cleanup additive 0.2-0.7%, ammonium persulphate 100ppm-1500ppm; KCl 1%-4%, water 91%-98%.
2. according to the described buried hill grouan super-high temperature fracturing fluid that is used for of claim 1, it is characterized in that: it is 27.5%～52% weighting agent that said fracturing liquid can add mass percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110304724A CN102329604A (en) | 2011-10-10 | 2011-10-10 | Ultra-high-temperature fracturing fluid for ancient buried hill granite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110304724A CN102329604A (en) | 2011-10-10 | 2011-10-10 | Ultra-high-temperature fracturing fluid for ancient buried hill granite |
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| Publication Number | Publication Date |
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| CN102329604A true CN102329604A (en) | 2012-01-25 |
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| CN201110304724A Pending CN102329604A (en) | 2011-10-10 | 2011-10-10 | Ultra-high-temperature fracturing fluid for ancient buried hill granite |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103254885A (en) * | 2012-02-16 | 2013-08-21 | 中国石油天然气股份有限公司 | Slow-crosslinking high-temperature-resistant high-density fracturing fluid |
| CN103666436A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Acidic modified seaweed gel fracturing fluid |
| CN104178101A (en) * | 2013-05-21 | 2014-12-03 | 中国石油化工股份有限公司 | Weighted fracturing fluid |
| CN116042207A (en) * | 2022-11-09 | 2023-05-02 | 四川康荣石油化工科技有限公司 | High-temperature-resistant fracturing fluid and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869149A (en) * | 2006-07-07 | 2006-11-29 | 中国石油天然气股份有限公司 | High-density fracturing fluid |
-
2011
- 2011-10-10 CN CN201110304724A patent/CN102329604A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869149A (en) * | 2006-07-07 | 2006-11-29 | 中国石油天然气股份有限公司 | High-density fracturing fluid |
Non-Patent Citations (2)
| Title |
|---|
| 《石油与天然气化工》 20110425 黄贵存等 "超高温压裂液配方体系研究" 第186-189页 1-2 第40卷, 第2期 * |
| 黄贵存等: ""超高温压裂液配方体系研究"", 《石油与天然气化工》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103254885A (en) * | 2012-02-16 | 2013-08-21 | 中国石油天然气股份有限公司 | Slow-crosslinking high-temperature-resistant high-density fracturing fluid |
| CN103254885B (en) * | 2012-02-16 | 2016-01-20 | 中国石油天然气股份有限公司 | Slow-crosslinking high-temperature-resistant high-density fracturing fluid |
| CN103666436A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Acidic modified seaweed gel fracturing fluid |
| CN103666436B (en) * | 2012-09-18 | 2016-06-08 | 中国石油天然气股份有限公司 | Acidic modified seaweed gel fracturing fluid |
| CN104178101A (en) * | 2013-05-21 | 2014-12-03 | 中国石油化工股份有限公司 | Weighted fracturing fluid |
| CN116042207A (en) * | 2022-11-09 | 2023-05-02 | 四川康荣石油化工科技有限公司 | High-temperature-resistant fracturing fluid and preparation method thereof |
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Application publication date: 20120125 |