CN107573911A - A kind of high performance water-based drilling fluid formula - Google Patents
A kind of high performance water-based drilling fluid formula Download PDFInfo
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- CN107573911A CN107573911A CN201710850420.2A CN201710850420A CN107573911A CN 107573911 A CN107573911 A CN 107573911A CN 201710850420 A CN201710850420 A CN 201710850420A CN 107573911 A CN107573911 A CN 107573911A
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Abstract
The invention discloses a kind of high performance water-based drilling fluid, including following parts by weight to form：100 parts of fresh water, 26 parts of bentonite, 0.2 0.6 parts of coating agent, 05 parts of fluid loss additive, 16 parts of fluid loss additive of lubrication, 04 parts of lubricant, 26 parts of anti-collapse sealing agent, 68 parts of shale control agent, 0.2 0.4 parts of pH adjusting agent, 60 parts of heavy weight additive；The lubrication fluid loss additive is borate modified graphene oxide, high performance water-based drilling fluid system provided by the invention, has the characteristics of high inhibition, block by force, while has low lubricating coefficient, and underground frictional resistance is small, is suitable for directional well, extended reach well construction operation.
Description
Technical field
The invention belongs to oil drilling drilling liquid technology field, and in particular to a kind of high performance water-based drilling fluid.
Background technology
With the fast development of Chinese society economy, to energy demand more and more higher, explored in petroleum gas equal energy source
The complex structural well such as extended reach well, unconventionaloil pool long horizontal sections horizontal well, which progressively turns into, in exploitation improves petroleum resources exploitation effect
The main drilling mode of fruit, quantity are on the increase, and the contradiction between the suppression lubricity and underground complex accident of drilling fluid is more next
It is more prominent.The advantages that oil base drilling fluid has good thermal stability, and inhibition is good, is advantageous to borehole wall stability, and lubricity is good, but
It is that its environment is subjected to ability, cost is high, limits its application in deep ＆ ultra-deep well and complex structural well.From environmental protection
For aspect, water-base drilling fluid is more environmentally-friendly compared to oil base drilling fluid, and potassium chloride polymer drilling fluid system is because of its good suppression
Property processed, there will be broader practice prospect in some complex structural wells.
In extended reach well drilling process, the technology of wellbore stability, well cleaning and lubrication three aspects of anti-sticking is mainly faced
Problem.Because borehole wall stability is by formation rock intensity, the stress state of Sidewall Surrounding Rock, well track and crustal stress orientation etc.
The joint effect of factor, the more conventional well of extended reach well Wellbore Stability is more prominent, and the suppression sealing characteristics to drilling fluid carries
Go out higher requirement, hole instability, be easily caused chip off-falling, can also increase frictional resistance, or even cause the generation of down-hole accident.It is big in addition
The cleaning of displacement well well is difficult, and landwaste, which is not easy to be taken in time, returns to ground, easily forms cutting bed, adds drilling and makes a trip
During moment of torsion and frictional resistance, reduce drilling speed, be also easy to the generation for causing lock of tool drilling.With the increase of horizontal displacement, big portion
Drilling tool is divided to lie in the bottom of well, drill string is very big with borehole wall contact area, causes frictional resistance very big, and when serious, the pressure of the drill can not add to
Drill bit.With lubricator there is backing pressure problem in processing high angle hole and long horizontal sections horizontal well in water-base drilling fluid at present, and effect is not
Substantially.The lubricity of water-base drilling fluid is to limit it high angle hole and long horizontal sections horizontal well are applied an important factor for.Therefore,
A kind of novel high-performance water-base drilling fluid is developed, improves its lubricity, while has excellent inhibition and seal-off effect concurrently, enhancing is high
Performance water-base drilling fluid lubrication drag reduction in the labyrinth well constructions such as extended reach well, shale oil gas and fine and close oil gas horizontal well
Can, wellbore stability ability is improved, effectively improves bit speed, there is the progress to China's drilling liquid technology important promotion to make
With.
The content of the invention
The present invention in view of the shortcomings of the prior art, has invented a kind of high performance water-based drilling fluid, has added and change containing borate
Property graphene oxide, improve the greasy property of the drilling fluid system, significantly reduce the lubricating coefficient of water-base drilling fluid, and the drilling well
Liquid system has the inhibition and seal-off effect of stronger drilling fluid, disclosure satisfy that extended reach well construction requirement.
The technical scheme is that realized by following measures：
A kind of high performance water-based drilling fluid formula, including 100 parts of fresh water, bentonite 2-6 parts, coating agent 0.2-0.6 parts, drop
Fluid loss agents 0-5 parts, lubrication fluid loss additive 1-6 parts, lubricant 0-4 parts, anti-collapse sealing agent 2-6 parts, shale control agent 6-8 parts, pH
60 parts of conditioning agent 0.2-0.4 parts, heavy weight additive；
The lubrication fluid loss additive is borate modified graphene oxide.
The borate is the borate containing amino, imidazoline type borate and acid amide type boric acid preferably containing amino
Ester；The type of quinoline containing the aminooimidazole borate is oleic imidazolinone type borate, lauric acid imidazoline type borate；
The borate of amine type containing aminoacyl is stearic acid diethylene glycol acid amide type borate；
The preparation method of the lubrication fluid loss additive, comprises the following steps：
By the graphene oxide ultrasonic disperse of 1-3 parts by weight in the ethanol of 40-60 parts by weight, 20-30 parts by weight are added
The borate containing amino, react 5-12h at 60-100 DEG C, reaction terminates to filter, and is washed with deionized, drying to produce
Product.
The coating agent is polyacrylamide sylvite or PAMC；
The fluid loss additive is carboxyl methyl cellulose-LV or polyanion cellulose PAC；
The lubricant is modified vegetable oil, fatty acid methyl ester, methyl oleate, glyceryl monooleate；
Anti-collapse sealing agent is sulfonated gilsonite, SOTEX or SOTEX sylvite.
The shale control agent is the one or more in KCl, polyether amine inhibitor D230, T403.
The pH adjusting agent is NaOH or KOH.
The heavy weight additive is barite.
Beneficial effects of the present invention have the characteristics of high inhibition, block by force for the high performance water-based drilling fluid of the present invention, together
When there is low lubricating coefficient, underground frictional resistance is small, is suitable for directional well, extended reach well construction operation.Wherein employ lubrication drop
Fluid loss agents, it is made by borate modified graphene oxide, the amine in the epoxy-functional and borate of surface of graphene oxide
Base carries out necleophilic reaction, and organic boronic esters material has an excellent lubrication, graphene oxide except with lubrication,
Also there is plugging action, the filter loss of drilling fluid can be reduced, being introduced into for borate adds graphene oxide in drilling fluid
Dispersiveness.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail, but example is not as the limit to the present invention
It is fixed.
Embodiment 1
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, 2 parts of polyanion cellulose, lubrication filtrate reducing
1 part of agent, 2 parts of modified vegetable oil, 2 parts of SOTEX sylvite, 7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of the lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 3 parts by weight in the ethanol of 60 parts by weight, add 28 parts by weight contains amino
Oleic imidazolinone borate, react 8h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries to obtain product.
Embodiment 2
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, lubrication 1 part of fluid loss additive, 2 parts of SOTEX sylvite,
7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of the lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 3 parts by weight in the ethanol of 60 parts by weight, add 28 parts by weight contains amino
Oleic imidazolinone borate, react 8h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries to obtain product.
Embodiment 3
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, lubrication 2 parts of fluid loss additive, 2 parts of SOTEX sylvite,
7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of the lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 3 parts by weight in the ethanol of 60 parts by weight, add 28 parts by weight contains amino
Oleic imidazolinone borate, react 8h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries to obtain product.
Embodiment 4
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, lubrication 3 parts of fluid loss additive, 2 parts of SOTEX sylvite,
7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of the lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 3 parts by weight in the ethanol of 60 parts by weight, add 28 parts by weight contains amino
Oleic imidazolinone borate, react 8h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries to obtain product.
Embodiment 5
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, 2 parts of carboxymethyl cellulose, lubrication fluid loss additive 1
Part, 3 parts of glyceryl monooleate, 2 parts of sulfonated gilsonite, 7 parts of KCl, 0.5 part of T403,0.3 part of KOH, 60 parts of barite；
The preparation method of described lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 3 parts by weight in the ethanol of 50 parts by weight, add 20 parts by weight contains amino
Lauric acid imidazoline borate, react 12h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries to obtain product.
Embodiment 6
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, lubrication 1 part of fluid loss additive, 2 parts of SOTEX sylvite,
7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of the lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 3 parts by weight in the ethanol of 50 parts by weight, add 20 parts by weight contains amino
Lauric acid imidazoline borate, react 12h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries to obtain product.
Embodiment 7
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, lubrication 2 parts of fluid loss additive, 2 parts of SOTEX sylvite,
7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of the lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 3 parts by weight in the ethanol of 50 parts by weight, add 20 parts by weight contains amino
Lauric acid imidazoline borate, react 12h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries to obtain product.
Embodiment 8
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, lubrication 3 parts of fluid loss additive, 2 parts of SOTEX sylvite,
7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of described lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 3 parts by weight in the ethanol of 50 parts by weight, add 20 parts by weight contains amino
Lauric acid imidazoline borate, react 12h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries to obtain product.
Embodiment 9
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component；
100 parts of fresh water, 3 parts of bentonite, 0.2 part of PAMC, 2 parts of polyanion cellulose, lubrication drop filter
Lose 1 part of agent, 3 parts of fatty acid methyl ester, 2 parts of SOTEX sylvite, 7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of described lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 2 parts by weight in the ethanol of 40 parts by weight, add 20 parts by weight contains amino
Stearic acid diethylene glycol acid amides borate, react 8h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries
Product.
Embodiment 10
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, lubrication 1 part of fluid loss additive, 2 parts of SOTEX sylvite,
7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of described lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 2 parts by weight in the ethanol of 40 parts by weight, add 20 parts by weight contains amino
Stearic acid diethylene glycol acid amides borate, react 8h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries
Product.
Embodiment 11
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：
Fresh water part, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, 2 parts of fluid loss additive of lubrication, 2 parts of SOTEX sylvite, KCl
7 parts, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
The preparation method of the lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 2 parts by weight in the ethanol of 40 parts by weight, add 20 parts by weight contains amino
Stearic acid diethylene glycol acid amides borate, react 8h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries
Product.
Embodiment 12
A kind of high performance water-based drilling fluid, it is made up of following parts by weight of component：100 parts of fresh water, 3 parts of bentonite, polypropylene
0.2 part of amide potassium salt, 3 parts of fluid loss additive of lubrication, 2 parts of SOTEX sylvite, 7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, weight are brilliant
60 parts of stone；
The preparation method of the lubrication fluid loss additive is as follows：
By the graphene oxide ultrasonic disperse of 2 parts by weight in the ethanol of 40 parts by weight, add 20 parts by weight contains amino
Stearic acid diethylene glycol acid amides borate, react 8h at 80 DEG C, reaction terminates to filter, and is washed with deionized, dries
Product.
Comparative example 1
A kind of water-base drilling fluid, it is made up of following parts by weight of component：
100 parts of fresh water, 3 parts of bentonite, 0.2 part of polyacrylamide sylvite, 2 parts of polyanion cellulose, modified vegetable oil 2
Part, 2 parts of SOTEX sylvite, 7 parts of KCl, 0.5 part of D230,0.3 part of NaOH, 60 parts of barite；
Embodiment 1-12, the fast rotary viscosity measuring rheological parameters of ZNN-D6 six are used after 150 DEG C of heat rolling 16h, are tested
Temperature 50 C.Lubricating coefficient is determined using Fann111-00 type extreme boundary lubrications instrument.HTHP measurement temperature is 150 DEG C.
The rheological characteristic filtration property of table 1 and lubricating coefficient
As can be seen from Table 1, graphene oxide borate has the function that to significantly reduce filter loss and lubricating coefficient.
Embodiment 1-12, according to GB/T 29170-2012《Industrial gas oil drilling fluid laboratory is tested》In 23 chapters " shale roll
Shale specified in recovery test " rolls scattered rate of recovery experimental method, have rated the inhibition of drilling fluid system.Heat rolling temperature
150 DEG C, core is Bohai Sea Gulf Ming Huazhen group red mudstones, and contrast experiment is with water.
The inhibition evaluating data of table 2
According to《GB/T 29170-2012 industrial gas oil drilling fluids laboratory is tested》, instrument is blocked using permeability
Determine the seal-off effect of embodiment 1-12 drilling fluid system.Filtration media used is the potsherd of the millidarcy of permeability 400, is tested
30min filter losses (VPPT)。
The seal-off effect evaluating data of table 3
Can be seen that addition graphene oxide borate from the data of table 2 and table 3 can significantly improve drilling fluid system
Inhibition and seal-off effect.Consolidated statement 1-3 data can be seen that the present invention and provide a kind of high performance water-based drilling fluid, have excellent
Lubricity, while inhibition and sealing characteristics are excellent.The construction demand of high angle hole and long horizontal sections horizontal well can be met.
Above example only be choose several preferred embodiments of the invention, not to the present invention do it is any in form
Limitation, every technical spirit according to the present invention, any equivalent modifications made to above example, each fall within guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of high performance water-based drilling fluid, it is characterised in that formed including following parts by weight：100 parts of fresh water, bentonite 2-6
Part, coating agent 0.2-0.6 parts, fluid loss additive 0-5 parts, lubrication fluid loss additive 1-6 parts, lubricant 0-4 parts, anti-collapse sealing agent 2-6
Part, shale control agent 6-8 parts, pH adjusting agent 0.2-0.4 parts, 60 parts of heavy weight additive；
The lubrication fluid loss additive is borate modified graphene oxide.
2. high performance water-based drilling fluid as claimed in claim 1, it is characterised in that the borate is the boric acid containing amino
Ester, imidazoline type borate and acid amide type borate preferably containing amino；The type of quinoline containing the aminooimidazole borate is oil
Imidazole acid quinoline type borate, lauric acid imidazoline type borate；Preferably, the borate of amine type containing aminoacyl is stearic acid two
Ethylene glycol acid amide type borate.
3. high performance water-based drilling fluid as claimed in claim 1, it is characterised in that the preparation side of the lubrication fluid loss additive
Method, comprise the following steps：
By the graphene oxide ultrasonic disperse of 1-3 parts by weight in the ethanol of 40-60 parts by weight, containing for 20-30 parts by weight is added
The borate of amino, reacts 5-12h at 60-100 DEG C, and reaction terminates to filter, is washed with deionized, dries to obtain product.
4. high performance water-based drilling fluid as claimed in claim 1, it is characterised in that the coating agent is polyacrylamide sylvite
Or PAMC.
5. high performance water-based drilling fluid as claimed in claim 1, it is characterised in that the fluid loss additive is carboxymethyl cellulose
CMC-LV or polyanion cellulose PAC.
6. high performance water-based drilling fluid as claimed in claim 1, it is characterised in that the lubricant is modified vegetable oil, fat
Fatty acid methyl esters, methyl oleate, glyceryl monooleate.
7. high performance water-based drilling fluid as claimed in claim 1, it is characterised in that anti-collapse sealing agent is sulfonated gilsonite, SOTEX
Or SOTEX sylvite.
8. high performance water-based drilling fluid as claimed in claim 1, it is characterised in that the shale control agent is KCl, polyetheramine
One or more in class inhibitor D230, T403.
9. high performance water-based drilling fluid as claimed in claim 1, it is characterised in that the pH adjusting agent is NaOH or KOH.
10. high performance water-based drilling fluid as claimed in claim 1, it is characterised in that the heavy weight additive is barite.
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| CN108728056A (en) * | 2018-05-14 | 2018-11-02 | 中国石油集团西部钻探工程有限公司 | A kind of thin type high performance water-based drilling fluid system of high inhibition pair and its application |
| WO2020096589A1 (en) * | 2018-11-07 | 2020-05-14 | Halliburton Energy Services, Inc. | Compositions and methods for controlling migration of particulates |
| CN111676003A (en) * | 2020-07-22 | 2020-09-18 | 西南石油大学 | Environment-friendly low-molecular-weight branched polyether ammonia shale intercalation inhibitor |
| CN112226215A (en) * | 2019-07-15 | 2021-01-15 | 中石化石油工程技术服务有限公司 | Lubricating anti-sloughing agent for drilling fluid |
| CN114437674A (en) * | 2020-10-20 | 2022-05-06 | 中国石油化工股份有限公司 | Amphiphilic Janus graphite particle and preparation method and application thereof |
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| CN114437674A (en) * | 2020-10-20 | 2022-05-06 | 中国石油化工股份有限公司 | Amphiphilic Janus graphite particle and preparation method and application thereof |
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| CN107573911B (en) | 2019-11-08 |
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