CN102492402A - Preparation method of low-fluorescence lubricant for water-based drilling fluid - Google Patents
Preparation method of low-fluorescence lubricant for water-based drilling fluid Download PDFInfo
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- CN102492402A CN102492402A CN2011103686739A CN201110368673A CN102492402A CN 102492402 A CN102492402 A CN 102492402A CN 2011103686739 A CN2011103686739 A CN 2011103686739A CN 201110368673 A CN201110368673 A CN 201110368673A CN 102492402 A CN102492402 A CN 102492402A
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Abstract
The invention relates to preparation method of a low-fluorescence lubricant for water-based drilling fluid. The preparation method of the low-fluorescence lubricant for water-based drilling fluid comprises the following steps of 1), weighting components according to corresponding weight ratios, 2), adding industrial white oil and methyl oleate into a container, 3), stirring with addition of OP-10 and SP-80, 4), sequentially stirring for 20 to 30 minutes, and simultaneously, preparing caustic soda into a caustic soda aqueous solution having mass concentration of 30% in stirring, 5), adding water into the container, 6), slowly and uniformly adding the caustic soda aqueous solution into the container, 7), adjusting a pH value to a pH value of 7 to 8, 8), sequentially stirring for 15 minutes, and 9), adding sodium chloride into the container, and stirring for 10 minutes to obtain the low-fluorescence lubricant for water-based drilling fluid. The preparation method of the low-fluorescence lubricant for water-based drilling fluid is simple, needs simple equipment, and can be implemented easily. The low-fluorescence lubricant obtained by the preparation method provided by the invention has low fluorescence, good stability, does not produce layering, can satisfy well drilling requirements well, does not produce bad influences on geological logging, avoids that real rock fragments cannot be obtained in logging, and does not influence novel oil gas stratum discovery.
Description
Technical field
The present invention relates to water-base drilling fluid working method technical field with lubricator, especially a kind of preparation method of water-base drilling fluid low fluorescence lubricant.
Background technology
Although lubricant for drilling fluids has been carried out big quantity research both at home and abroad, developed various solids, liquid, and nano lubricating agent, also in different fld probings, obtained the number of applications achievement.But every kind of lubricant is because the difference of Working environment is applied in the different geology blocks in different oil fields; In different drilling fluid systems, use; All show the lubricated frictional resistance that falls and fall the moment of torsion effect and differ greatly, influence factor is many and complicated, and therefore every kind of lubricant has its limitation and use range again; We are necessary according to this oil field geologic situation and formation characteristics; Drilling fluid and completion fluid series characteristics in conjunction with this oil field self-organizing system work out the lubricant that has independent intellectual property right with the supporting self-character of drilling fluid and completion fluid, satisfy Jiangsu area drilling well needs.
And in Jiangsu field exploratory well, deep-well, horizontal well drilling process, the lubricant that uses at present is various in style, and quality is extremely unstable; Particularly along with area, Jiangsu horizontal well development scale constantly enlarges; The consumption of lubricant for drilling fluid also constantly increases; And lubricant can not effectively solve long lateral segment drilling fluid lubricating drag reduction problem at present; Demixing phenomenon appears in the lubricant poor stability that has, and can not satisfy the demand of drilling engineering to lubricant for drilling fluid well; Moreover the part lubricant that uses has negative impact owing to there is fluorescence problem to geological logging, causes and drags on the well logging less than true landwaste, and the unfavorable result of new hydrocarbon zone is found in influence.
Thereby a kind of new drilling well industry method with lubricator for preparing of exigence; The lubricant of this method preparation requires low fluorescence, and stability will be got well, and demixing phenomenon do not occur; Can satisfy the demand of drilling engineering well; Can not have negative impact, can not cause yet and drag on the well logging, can not influence and find new hydrocarbon zone less than true landwaste to geological logging.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes a kind of preparation method and the required equipment condition is simple, water-base drilling fluid easy to implement is with the preparation method of low fluorescence lubricant; Adopt the low fluorescence of lubricant of present method preparation, demixing phenomenon does not appear in good stability; Can satisfy the demand of drilling engineering well; Can not have negative impact, can not cause yet and drag on the well logging, can not influence and find new hydrocarbon zone less than true landwaste to geological logging.
The technical scheme that present method adopted is following:
A kind of water-base drilling fluid is characterized in that with the preparation method of low fluorescence lubricant step is following:
At first get the raw materials ready: the starting material by following weight percent are got the raw materials ready: technical white oil: 10% one 20%; Witconol 2301: 20% one 40%; Nonylphenol Soxylat A 25-7 OP-10: 2% 1 %; Sorbitan monooleate SP-80:2%-3%; Caustic soda NaOH: 1% one 2%; Sodium-chlor: 1% one 2%, all the other are water; Secondly, in reaction kettle, add whole technical white oils, Witconol 2301 at first, begin to stir in strict accordance with reinforced order; Stir and also to add OP-10, SP-80, continue then to stir 20 1 30 minutes, in the process that stirs, caustic soda being mixed with mass concentration is 30% the aqueous solution; Add whole water; Then under agitation slowly evenly add the caustic soda soln for preparing, the pH value is adjusted to 7-8, continue to stir 15 minutes; Add sodium-chlor and stirred 10 minutes, promptly make water-base drilling fluid and use low fluorescence lubricant.
Material preparation step forms lubricant by the raw material preparing of following weight percent: technical white oil: 10; Witconol 2301: 30; Nonylphenol Soxylat A 25-7 OP-10: 2; Sorbitan monooleate SP-80:3; Caustic soda NaOH: 1; Sodium-chlor: 1, all the other are water.
The beneficial effect that the present invention reached is following:
One, compared with prior art; The material cost that present method adopted is low, and preparation method and required equipment condition are simple, easy to implement; Can satisfy in the exceptional well wellbore construction process the lubricant for drilling fluid requirement; Can reduce production costs significantly again, obtain good economic benefit and social benefit, be worthy of popularization very much.And adopt the lubricant of present method preparation, low fluorescence, good stability; Demixing phenomenon do not occur, can satisfy the demand of drilling engineering well, can not have negative impact geological logging; Can not cause yet and drag on the well logging, can not influence and find new hydrocarbon zone less than true landwaste.
Two, with the described prescription of present method, the lubricant that adopts preparation method commonly used in the petroleum drilling industry to make, with respect to prior art, quality stability is good, can not cause occurring demixing phenomenon, can satisfy the demand of drilling engineering well.
Three, the present invention can be applicable to Jiangsu field exploratory well, deep-well, horizontal well, plays good lubrication drag reduction effect.
Embodiment
To combine specific embodiment that the present invention is described further below:
Embodiment 1
Technical white oil: 10%; Witconol 2301: 30%; Nonylphenol Soxylat A 25-7 OP-10: 2 %; Sorbitan monooleate SP-80:3%; Caustic soda NaOH: 1%; Sodium-chlor: 1%, all the other are water; In reaction kettle, add whole technical white oils, Witconol 2301 at first in strict accordance with reinforced order, begin to stir, stirring also adds OP-10, SP-80; Continue then to stir 20 1 30 minutes; In the process that stirs, caustic soda being mixed with mass concentration is 30% the aqueous solution, adds whole water, then the slow even caustic soda soln for preparing of adding under agitation; The pH value is adjusted to 7-8; Continue to stir 15 minutes, add sodium-chlor and stirred 10 minutes, promptly make water-base drilling fluid of the present invention and use low fluorescence lubricant.
One, embodiment 1 water-base drilling fluid testing experiment with lubricator
(winter :-10 ℃, summer: 40 ℃, autumn in spring under the aboveground ultimate temperature in oil field, this test simulation Jiangsu
25 ℃) after long-time the placement, observed the stability of the lubricant of embodiment 1, serve as the base slurry with 6% sodium bentonite slurry, estimated the lubricant lubrication drag reduction performance of the embodiment of the invention 1.
Test 1: the stability of the samples of lubricant of embodiment 1 is measured
Respectively with production sample at-10 ℃, 40 ℃, 25 ℃ place January after, observation sample outward appearance, breakdown of emulsion whether, the result sees table 1.
Table 1: outward appearance and breakdown of emulsion situation
Test 2: the lubricant lubrication drag reduction performance evaluation of embodiment 1
The 6% slope soil paste (fresh water slurry) of aquation after 24 hours adds the samples of lubricant of 1% embodiment 1, and height stirs after 10 minutes and is lubricated performance evaluation with the extreme boundary lubrication appearance, and the result sees table 2
The lubrication drag reduction performance of table 2 lubricant
| Numbering | The sample storage condition | The foaming situation is described | Meter reading | Lubricating coefficient reduced rate % |
| The base slurry | ? | ? | 53.4 | ? |
| 1 | -10 ℃ of January | Height stirs non-foaming | 5.1 | 90.45 |
| 2 | 25 ℃ of January | Height stirs non-foaming | 4.2 | 92.13 |
| 3 | 40 ℃ of January | Height stirs non-foaming | 6.3 | 88.2 |
Can find out that from table 1 and table 2 each item performance index of the lubricant for drilling fluid of embodiment 1 all reach on-the-spot request for utilization, can pay rig-site utilization.
Two, embodiment 1 water-base drilling fluid each item performance with lubricator
| Project | Data that record and performance |
| The AV lift-off value, mPa. s | 2 |
| The lubricating coefficient reduced rate, % | 88.62 |
| Fluorescence grade | 3 |
| Stability | Under simulation oil field, the Jiangsu aboveground ultimate temperature after (winter :-10 ℃, summer: 40 ℃, 25 ℃ of autumns in spring) long-time placement, not stratified not breakdown of emulsion, stable performance. |
Embodiment 2
Technical white oil: 20%; Witconol 2301: 20%; Nonylphenol Soxylat A 25-7 OP-10: 3 %; Sorbitan monooleate SP-80:2%; Caustic soda NaOH: 1%; Sodium-chlor: 1%, all the other are water; In reaction kettle, add whole technical white oils, Witconol 2301 at first in strict accordance with reinforced order, begin to stir, stirring also adds OP-10, SP-80; Continue then to stir 20 1 30 minutes; In the process that stirs, caustic soda being mixed with mass concentration is 30% the aqueous solution, adds whole water, then the slow even caustic soda soln for preparing of adding under agitation; The pH value is adjusted to 7-8; Continue to stir 15 minutes, add sodium-chlor and stirred 10 minutes, promptly make water-base drilling fluid of the present invention and use low fluorescence lubricant.
Embodiment 3
Technical white oil: 10%; Witconol 2301: 40%; Nonylphenol Soxylat A 25-7 OP-10: 2 %; Sorbitan monooleate SP-80:3%; Caustic soda NaOH: 1%; Sodium-chlor: 1%, all the other are water; In reaction kettle, add whole technical white oils, Witconol 2301 at first in strict accordance with reinforced order, begin to stir, stirring also adds OP-10, SP-80; Continue then to stir 20 1 30 minutes; In the process that stirs, caustic soda being mixed with mass concentration is 30% the aqueous solution, adds whole water, then the slow even caustic soda soln for preparing of adding under agitation; The pH value is adjusted to 7-8; Continue to stir 15 minutes, add sodium-chlor and stirred 10 minutes, promptly make water-base drilling fluid of the present invention and use low fluorescence lubricant.。
Embodiment 4
Technical white oil: 20%; Witconol 2301: 30%; Nonylphenol Soxylat A 25-7 OP-10: 2 %; Sorbitan monooleate SP-80:3%; Caustic soda NaOH: 1%; Sodium-chlor: 1%, all the other are water; In reaction kettle, add whole technical white oils, Witconol 2301 at first in strict accordance with reinforced order, begin to stir, stirring also adds OP-10, SP-80; Continue then to stir 20 1 30 minutes; In the process that stirs, caustic soda being mixed with mass concentration is 30% the aqueous solution, adds whole water, then the slow even caustic soda soln for preparing of adding under agitation; The pH value is adjusted to 7-8; Continue to stir 15 minutes, add sodium-chlor and stirred 10 minutes, promptly make water-base drilling fluid of the present invention and use low fluorescence lubricant.
Embodiment 5
Technical white oil: 10%; Witconol 2301: 20%; Nonylphenol Soxylat A 25-7 OP-10: 2 %; Sorbitan monooleate SP-80:3%; Caustic soda NaOH: 1%; Sodium-chlor: 1%, all the other are water; In reaction kettle, add whole technical white oils, Witconol 2301 at first in strict accordance with reinforced order, begin to stir, stirring also adds OP-10, SP-80; Continue then to stir 20 1 30 minutes; In the process that stirs, caustic soda being mixed with mass concentration is 30% the aqueous solution, adds whole water, then the slow even caustic soda soln for preparing of adding under agitation; The pH value is adjusted to 7-8; Continue to stir 15 minutes, add sodium-chlor and stirred 10 minutes, promptly make water-base drilling fluid of the present invention and use low fluorescence lubricant.
Claims (3)
1. water-base drilling fluid is used low fluorescence lubricant, it is characterized in that, comprises following component (weight ratio): technical white oil: 10% one 20%; Witconol 2301: 20% one 40%; Nonylphenol Soxylat A 25-7 OP-10: 2% 1 %; Sorbitan monooleate SP-80:2%-3%; Caustic soda NaOH: 1% one 2%; Sodium-chlor: 1% one 2%, all the other are water.
2. water-base drilling fluid according to claim 1 is used low fluorescence lubricant, it is characterized in that technical white oil: 10 parts; Witconol 2301: 30 parts; Nonylphenol Soxylat A 25-7 OP-10: 2 parts; Sorbitan monooleate SP-80:3 part; Caustic soda NaOH: 1 part; Sodium-chlor: 1 part, all the other are water.
3. a water-base drilling fluid is characterized in that with the preparation method of low fluorescence lubricant, carries out according to the following steps: take by weighing corresponding component at first according to quantity; Add technical white oil, Witconol 2301 at first, begin to stir, stirring also adds OP-10, SP-80; Continue to stir then 20 1 30 minutes, in the process that stirs, caustic soda being mixed with mass concentration is 30% the aqueous solution, adds entry; Then under agitation slowly evenly add the caustic soda soln for preparing, the pH value is adjusted to 7-8, continue to stir 15 minutes; Add sodium-chlor and stirred 10 minutes, promptly make water-base drilling fluid and use low fluorescence lubricant.
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| CN2011103686739A CN102492402A (en) | 2011-11-20 | 2011-11-20 | Preparation method of low-fluorescence lubricant for water-based drilling fluid |
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| CN2011103686739A CN102492402A (en) | 2011-11-20 | 2011-11-20 | Preparation method of low-fluorescence lubricant for water-based drilling fluid |
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Cited By (1)
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| CN106047314A (en) * | 2016-06-29 | 2016-10-26 | 克拉玛依市奥泽工贸有限责任公司 | Water-based lubricating oil for drilling fluid and preparation method of water-based lubricating oil |
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| CN1944570A (en) * | 2005-10-05 | 2007-04-11 | 克拉玛依市恒祥科技有限责任公司 | Low fluorescence lubricant for well drilling liquid and its producing method |
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| CN101486896A (en) * | 2008-12-15 | 2009-07-22 | 中国石油化工股份有限公司 | Drilling fluid lubricating agent |
| CN101735778A (en) * | 2009-12-03 | 2010-06-16 | 中国海洋石油总公司 | Highly-efficient lubricant for drilling fluid |
| CN101921579A (en) * | 2010-09-29 | 2010-12-22 | 中国石油集团西部钻探工程有限公司 | Low-fluorescence sticking reliever and preparation method thereof |
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2011
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| CN1944570A (en) * | 2005-10-05 | 2007-04-11 | 克拉玛依市恒祥科技有限责任公司 | Low fluorescence lubricant for well drilling liquid and its producing method |
| CN101486896A (en) * | 2008-12-15 | 2009-07-22 | 中国石油化工股份有限公司 | Drilling fluid lubricating agent |
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| CN106047314A (en) * | 2016-06-29 | 2016-10-26 | 克拉玛依市奥泽工贸有限责任公司 | Water-based lubricating oil for drilling fluid and preparation method of water-based lubricating oil |
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Application publication date: 20120613 |