CN108641683A - A kind of high temperature resistance high salinity high-density water-based drilling fluid and its application - Google Patents
A kind of high temperature resistance high salinity high-density water-based drilling fluid and its application Download PDFInfo
- Publication number
- CN108641683A CN108641683A CN201810278560.1A CN201810278560A CN108641683A CN 108641683 A CN108641683 A CN 108641683A CN 201810278560 A CN201810278560 A CN 201810278560A CN 108641683 A CN108641683 A CN 108641683A
- Authority
- CN
- China
- Prior art keywords
- weight
- water
- parts
- reducing agent
- heat resisting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/18—Clay-containing compositions characterised by the organic compounds
- C09K8/22—Synthetic organic compounds
- C09K8/24—Polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
- C08F220/585—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The present invention relates to drilling technology fields, disclose a kind of heat resisting fluid loss reducing agent and preparation method thereof and water-base drilling fluid and its application, the heat resisting fluid loss reducing agent is copolymerized by a kind of monomer composition, the monomer composition contains dimethyl diallyl ammonium chloride, acrylamide, 2 acrylamido, 2 methyl propane sulfonic acid, N, N dimethacrylamide and p-methylstyrene.The present invention also provides the water-base drilling fluids containing heat resisting fluid loss reducing agent of the present invention, and the water-base drilling fluid containing heat resisting fluid loss reducing agent of the present invention is applied to deep layer high temperature (220 DEG C) high salinity, and (saturated salt contains 1.0%CaCl2) under the conditions of probing in when, can show preferably to inhibit, rheology and filtrate loss controllability.
Description
Technical field
The present invention relates to drilling technology field, more particularly to a kind of heat resisting fluid loss reducing agent and preparation method thereof and water base
Drilling fluid and its application.
Background technology
Petroleum gas has important shadow as a kind of strategic resource, the economic security national to one and stable development
It rings.With the quick exhaustion increasingly increased with Shallow Oil-Gas resource of China's oil Natural Gas Demand, China's economy increases with industry
Long external oil interdependency is continuously improved, and severe Energy situation, there is an urgent need to new to take over petroleum resources.According to second
National Oil Gas Resources evaluation result, China's oil total resources are 94,000,000,000 tons, and conventional gas stock number is 38,000,000,000,000 m3, remain
Remaining petroleum resources are mainly distributed on deep layer.Deep reservoir universal depth in China's is more than 5000m, at present most deep nearly 9000m, shaft bottom temperature
180~260 DEG C of degree, and there are big section saline beds in area mostly.Currently, grand celebration, the South Sea, Jilin, Xinjiang, Tarim Basin, huge port etc.
All implementing ultra-deep well drilling in oil field.Anti- superhigh temperature high density high salinity (saturation NaCl, CaCl2>=1%) drilling fluid is deep
Portion's gypsum-salt stratum probing is successfully crucial, but existing high density high-salinity drilling fluid is difficult to meet high density, big section saline bed
Under the conditions of the requirement of anti-superhigh temperature, face in drilling engineering a series of cave-ins caused by drilling fluids at high temperature fails, bit freezing and
The significant technology issues such as blowout.When deep prospecting, drilling fluids at high temperature failure causes to take rock and suspension weighting material difficulty, it is difficult to have
The effect support borehole wall, easily causes the serious accidents such as well slough, bit freezing, blowout, even results in wellbore and scrap.Water base brill is used at present
Well liquid bores the well of superhigh temperature containing saline bed, main to maintain property of drilling fluid using increasing chemical treatments dosage, not only of high cost,
Inorganic agent consumption is big, processing is frequent, and drilling complexity accident is more, drilling speed is slow, drilling period is long, production safety and the public are pacified
Full blast is nearly big, seriously affects drilling quality, speed and benefit, and very causing, which influences geological target, realizes.
Therefore, the research of confrontation high temperature and high salinity high-density water-based drilling fluid has important practical significance.
Invention content
The purpose of the invention is to overcome drawbacks described above existing for existing high density high salinity water-base drilling fluid, provide
A kind of heat resisting fluid loss reducing agent and preparation method thereof and water-base drilling fluid and its application.
To achieve the above object, in a first aspect, the present invention provides a kind of heat resisting fluid loss reducing agent, the high temperature resistance drop filter
Lose agent be copolymerized by a kind of monomer composition, the monomer composition contain dimethyl diallyl ammonium chloride, acrylamide,
2- acrylamide-2-methylpro panesulfonic acids, N, N- dimethacrylamide and p-methylstyrene.
Second aspect, the present invention provides the preparation method of above-mentioned heat resisting fluid loss reducing agent, this method includes：As molten
In the presence of the water of agent, surfactant and initiator, by dimethyl diallyl ammonium chloride, acrylamide, 2- acrylamides
Base -2- methyl propane sulfonic acids, N, N- dimethacrylamide and p-methylstyrene carry out polymerisation.
The third aspect, the present invention provides a kind of water-base drilling fluid, which contains anti-height of the present invention
Temperature drop fluid loss agents, sulfonated-pheno-formoldehyde resin, sulfonated lignite resin, sulfonated gilsonite, potassium chloride, graphite, bentonite and water.
Fourth aspect, the present invention provides water-base drilling fluid of the present invention answering in the gypsum-salt stratum drilling well of deep
With.
In water-base drilling fluid of the present invention, by introducing heat resisting fluid loss reducing agent, sulfonated-pheno-formoldehyde resin, sulfonation
Walchowite so that water-base drilling fluid of the present invention is drilled suitable for deep gypsum-salt stratum, can show preferably to press down
System, rheology and filtrate loss controllability.
Wherein, heat resisting fluid loss reducing agent molecular backbone is C-C keys, and side chain contains the strong knot of the oxidation resistances such as C-S and C-N
Structure.The monomer with C=C unsaturated double-bonds is selected to be copolymerized to obtain the polymer that main chain is C-C chains, due to C -- C single bond
Big (the 347.3KJ.mol of average bond energy-1), it is not susceptible to high temperature degradation；Introduce sulfonic group (- SO3H), clay particle table can be thickened
The hydration shell in face effectively keeps absorption position under high temperature, improves the thermal stability of drilling fluid, and not with Ca2+Reaction generates heavy
It forms sediment, anti-calcium and anti-salt can be played the role of, sulfonic group can also pass through the negative charge density of increase clay particle surface so that ζ electricity
Position increases, and increases the electrostatic repulsion between clay particle, improves the electrostatic stability of drilling fluid under high temperature；The groups such as phenyl ring are introduced,
The thermal stability and salt-resistance of inorganic agent can be improved in the hydrolysis for inhibiting strand to a certain degree.
With sulfonated-pheno-formoldehyde resin and sulfonated lignite resin supermolecular mechanism occurs for heat resisting fluid loss reducing agent, in the high mine of high temperature
Dynamic physical grid structure is associated under the conditions of change degree so that macro-radical protects body there are more physical crosslinking point
Fine particles present in system, and the flowing of Free water in cross-linked network structure is limited, to reduce the filter of drilling fluid system
Vector.Dynamic physical grid structure can also be adsorbed on mud cake surface by hydrophily sulfonate groups, amide group, make mud cake
Densification further decreases drilling fluid filtration.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
In a first aspect, the present invention provides a kind of heat resisting fluid loss reducing agent, the heat resisting fluid loss reducing agent is by a kind of monomer
Composition is copolymerized, and the monomer composition contains dimethyl diallyl ammonium chloride, acrylamide, 2- acrylamidos-
2- methyl propane sulfonic acids, N, N- dimethacrylamide and p-methylstyrene.
In the monomer composition, dimethyl diallyl ammonium chloride, acrylamide, 2- acrylamido -2- methyl
The molar ratio of propane sulfonic acid, N, N- dimethacrylamide and p-methylstyrene is 1：(0.5-3)：(1-5)：(0.5-5)：
(0.5-4).In the preferred case, in order to further increase the thermal stability and anti-salt property of heat resisting fluid loss reducing agent, diformazan
Base diallyl ammonium chloride, acrylamide, 2- acrylamide-2-methylpro panesulfonic acids, N, N- dimethacrylamide and to first
The molar ratio of base styrene is 1：(1.5-2.5)：(3-5)：(1-3)：(1-3).
Second aspect, the present invention provides the preparation method of the heat resisting fluid loss reducing agent, this method includes：As molten
In the presence of the water of agent, surfactant and initiator, by dimethyl diallyl ammonium chloride, acrylamide, 2- acrylamides
Base -2- methyl propane sulfonic acids, N, N- dimethacrylamide and p-methylstyrene carry out polymerisation.
In method of the present invention, relative to the water of 100 parts by weight, the dosage of the surfactant can be 0.1-
0.5 parts by weight, the dosage of the initiator can be 8-12 parts by weight, and the dosage of the dimethyl diallyl ammonium chloride can be with
For 1-10 parts by weight；
In method of the present invention, methyl diallyl ammonium chloride, acrylamide, 2- acrylamido -2- methyl-props
The dosage molar ratio of sulfonic acid, N, N- dimethacrylamide and p-methylstyrene can be 1：(0.5-3)：(1-5)：(0.5-
5)：(0.5-4), preferably 1：(1.5-2.5)：(3-5)：(1-3)：(1-3).
In method of the present invention, in order to further increase the thermal stability and salt-resistance of heat resisting fluid loss reducing agent
Can, under preferable case, the initiator is water-soluble azo class initiator, further preferably azo-bis-isobutyrate hydrochloride,
At least one of two isobutyl imidazoline hydrochloride of azo, azo dicyano valeric acid and azo dicyclohexyl formonitrile HCN.
In method of the present invention, in order to further increase the thermal stability and salt-resistance of heat resisting fluid loss reducing agent
Can, under preferable case, the surfactant is sulfuric acid lipid surfactant, further preferably lauryl sodium sulfate.
In method of the present invention, the condition of the polymerisation may include：PH is 6.5-7.5, temperature 40-
60 DEG C, time 5-8h.In order to further increase the thermal stability and anti-salt property of heat resisting fluid loss reducing agent, most preferably,
The condition of the polymerisation includes：PH is 7, and temperature is 50 DEG C, time 6h.
In method of the present invention, it is both needed to post-process product after reaction, it is anti-that acetone such as may be used
Then multiple purification is dried (such as at 100 DEG C), is crushed to get powdered heat resisting fluid loss reducing agent.
In a specific embodiment, the preparation method of the heat resisting fluid loss reducing agent includes：By 2- acrylamidos-
2- methyl propane sulfonic acids are dissolved in deionized water, sequentially add acrylamide, N,N-DMAA, two allyl of dimethyl
Ammonium chloride and lauryl sodium sulfate, stir 10-30min, such as with sodium hydrate regulator solution pH value be 7, under stiring
P-methylstyrene is added, at the reaction temperatures, reacts 20-40min under nitrogen protection, two NSC 18620 salt of azo is then added
Hydrochlorate reacts 3-8h, and viscous liquid product is made.Products therefrom is purified repeatedly with acetone, then dry, crush to get
Powdered heat resisting fluid loss reducing agent.
In the present invention, the azo-bis-isobutyrate hydrochloride can add in form of an aqueous solutions.The azo two used is different
The concentration of Butanimidamide, monohydrochloride aqueous solution can be 0.5-2 weight %, most preferably 1 weight %.
The third aspect, the present invention provides a kind of water-base drilling fluid, which contains anti-height of the present invention
Temperature drop fluid loss agents, sulfonated-pheno-formoldehyde resin, sulfonated lignite resin, sulfonated gilsonite, sulfonated lignite, potassium chloride, graphite, bentonite and
Water.
In water-base drilling fluid of the present invention, relative to the water of 100 parts by weight, the heat resisting fluid loss reducing agent contains
Amount is 2-4 parts by weight, the content of the sulfonated-pheno-formoldehyde resin is 3-5 parts by weight, the content of the sulfonated lignite resin is 3-5
Parts by weight, the content of the sulfonated gilsonite are 3-5 parts by weight, the content of the sulfonated lignite is 3-5 parts by weight, the potassium chloride
Content be 1-3 parts by weight, the content of the graphite is 1-3 parts by weight, the bentonitic content is 2-5 parts by weight.
In water-base drilling fluid of the present invention, the sulfonated lignite resin can be the conventional selection of this field, example
It is such as provided by China Petroleum Group Engineering and Technology Research Institute, trade mark SPNH.
In water-base drilling fluid of the present invention, the sulfonated lignite can be the conventional selection of this field, such as by
China Petroleum Group Engineering and Technology Research Institute provides, trade mark SMC.
In water-base drilling fluid of the present invention, the sulfonated gilsonite can be commercial product, such as purchased from Chinese stone
Oily group's drilling engineering Institute for Research and Technology.
In water-base drilling fluid of the present invention, the sulfonated-pheno-formoldehyde resin can be the conventional selection of this field,
Such as purchased from China Petroleum Group Engineering and Technology Research Institute, the trade mark is the sulfonated-pheno-formoldehyde resin product of SMP-II.
In water-base drilling fluid of the present invention, the bentonite can be the conventional selection of this field, such as can be with
It selects and is purchased from the Xinjiang streets Zhong Feixiazi bentonite Co., Ltd.
In the present invention, for the preparation method of water-base drilling fluid, there is no particular limitation, as long as by aforementioned content by each group
Divide mixing.
Fourth aspect, the present invention provides water-base drilling fluid of the present invention answering in the gypsum-salt stratum drilling well of deep
With.
Embodiment
The present invention will be described in detail by way of examples below, but is not intended to limit the present invention.Following preparation example,
In embodiment and comparative example, unless otherwise instructed, material therefor is commercially available, and method used is the routine of this field
Method.
Sulfonated lignite SMC, sulfonated lignite resin SPNH, sulfonated-pheno-formoldehyde resin SMP-II and sulfonated gilsonite are by China Petroleum
Engineering and technological research institute of group provides.
Polymer coating agent JT888, graphite and potassium chloride are purchased from Chengdu Chun Feng Petroleum Technology Co., Ltd.
Bentonite is purchased from the Xinjiang streets Zhong Feixiazi bentonite Co., Ltd
Heat resisting fluid loss reducing agent is obtained according to following preparation example.
Dimethyl diallyl ammonium chloride, acrylamide, 2- acrylamide-2-methylpro panesulfonic acids, N, N- dimethyl propylenes
Acrylamide and p-methylstyrene are purchased from Chengdu Gracia chemical technology Co., Ltd
Lauryl sodium sulfate, azo-bis-isobutyrate hydrochloride, two isobutyl imidazoline hydrochloride of azo and azo diisopropyl
Base imidazoline is purchased from Chengdu Gracia chemical technology Co., Ltd.
Preparation example 1
It is in the three-necked flask equipped with thermometer, mechanical agitator, 5g 2- acrylamide-2-methylpro panesulfonic acids is molten
In 100g deionized waters, according still further to dimethyl diallyl ammonium chloride, acrylamide, 2- acrylamido -2- methyl-prop sulphurs
The molar ratio of acid, N, N- dimethacrylamide and p-methylstyrene is 1：2：4：2：2 ratio, sequentially adds acryloyl
Lauryl sodium sulfate is added in amine, N,N-DMAA, dimethyl diallyl ammonium chloride and p-methylstyrene
0.3g, with sodium hydrate regulator solution pH be 7, after reaction unit is sealed, pour nitrogen and be sufficiently stirred, be added mass concentration be
1% azo-bis-isobutyrate hydrochloride 10g reacts 6h in 50 DEG C, obtains viscous liquid product.Repeatedly with acetone by products therefrom
Purification, and at 100 DEG C dries pulverizing to get powdered heat resisting fluid loss reducing agent A1.
Preparation example 2
It is in the three-necked flask equipped with thermometer, mechanical agitator, 1g 2- acrylamide-2-methylpro panesulfonic acids is molten
In 100g deionized waters, according still further to dimethyl diallyl ammonium chloride, acrylamide, 2- acrylamido -2- methyl-prop sulphurs
The molar ratio of acid, N, N- dimethacrylamide and p-methylstyrene is 1：1.5：3：1：1 ratio, sequentially adds acryloyl
Lauryl sodium sulfate is added in amine, N,N-DMAA, dimethyl diallyl ammonium chloride and p-methylstyrene
0.1g is 6.5 with sodium hydrate regulator solution pH, after reaction unit is sealed, pours nitrogen and be sufficiently stirred, and mass concentration is added
Azo-bis-isobutyrate hydrochloride 3g, two isobutyl imidazoline hydrochloride 5g of azo for 1% react 8h in 40 DEG C, obtain thick liquid
Body product.Products therefrom is purified repeatedly with acetone, and at 100 DEG C dries pulverizing to get powdered heat resisting fluid loss reducing agent
A2。
Preparation example 3
It is in the three-necked flask equipped with thermometer, mechanical agitator, 10g 2- acrylamide-2-methylpro panesulfonic acids is molten
In 100g deionized waters, according still further to dimethyl diallyl ammonium chloride, acrylamide, 2- acrylamido -2- methyl-prop sulphurs
The molar ratio of acid, N, N- dimethacrylamide and p-methylstyrene is 1：2.5：5：3：3 ratio, sequentially adds acryloyl
Lauryl sodium sulfate is added in amine, N,N-DMAA, dimethyl diallyl ammonium chloride and p-methylstyrene
0.5g is 7.5 with sodium hydrate regulator solution pH, after reaction unit is sealed, pours nitrogen and be sufficiently stirred, and mass concentration is added
For 1% azo dicyclohexyl formonitrile HCN 12g, 5h is reacted in 60 DEG C, obtains viscous liquid product.Products therefrom acetone is anti-
Multiple purification, and at 100 DEG C dries pulverizing to get powdered heat resisting fluid loss reducing agent A3.
Compare preparation example 1
Heat resisting fluid loss reducing agent is prepared according to the method for preparation example 1, unlike, it is added without dimethyl diallyl chlorination
Heat resisting fluid loss reducing agent DA1 is made in ammonium.
Compare preparation example 2
Heat resisting fluid loss reducing agent is prepared according to the method for preparation example 1, unlike, it is added without acrylamide, anti-height is made
Temperature drop fluid loss agents DA2.
Compare preparation example 3
Heat resisting fluid loss reducing agent is prepared according to the method for preparation example 1, unlike, it is added without 2- acrylamido -2- first
Heat resisting fluid loss reducing agent DA3 is made in base propane sulfonic acid.
Compare preparation example 4
Heat resisting fluid loss reducing agent is prepared according to the method for preparation example 1, unlike, it is added without N, N- dimethyl allene acyls
Heat resisting fluid loss reducing agent DA4 is made in amine.
Compare preparation example 5
Heat resisting fluid loss reducing agent is prepared according to the method for preparation example 1, unlike, it is added without p-methylstyrene, is made
Heat resisting fluid loss reducing agent DA5.
Embodiment 1
Water-base drilling fluid Fl：(preparation example 1 is prepared anti-for 100 parts by weight of water, 4 parts by weight of bentonite, heat resisting fluid loss reducing agent
High temperature fluid loss additive A1) 4 parts by weight, II 5 parts by weight of sulfonated-pheno-formoldehyde resin SMP-, 5 parts by weight of sulfonated lignite resin SPNH,
5 parts by weight of sulfonated gilsonite, 5 parts by weight of sulfonated lignite SMC, 3 parts by weight of potassium chloride, 3 parts by weight of graphite.
Embodiment 2
Water-base drilling fluid F2：100 parts by weight of water, 3 parts by weight of bentonite, heat resisting fluid loss reducing agent 3 parts by weight (preparation example 2
The heat resisting fluid loss reducing agent A2 of preparation), II 4 parts by weight of sulfonated-pheno-formoldehyde resin SMP-, 4 parts by weight of sulfonated lignite resin SPNH,
4 parts by weight of sulfonated gilsonite, 4 parts by weight of sulfonated lignite SMC, 2 parts by weight of potassium chloride, 2 parts by weight of graphite.
Embodiment 3
Water-base drilling fluid F3：100 parts of water, 2 parts by weight of bentonite, heat resisting fluid loss reducing agent (high temperature resistance prepared by preparation example 3
Fluid loss additive A3) 2 parts by weight, II 3 parts by weight of sulfonated-pheno-formoldehyde resin SMP-, 3 parts by weight of sulfonated lignite resin SPNH, sulfonation
3 parts by weight of pitch, 3 parts by weight of sulfonated lignite SMC, 1 parts by weight of potassium chloride, 1 parts by weight of graphite.
Comparative example 1
According to the method for embodiment 1, unlike be added without heat resisting fluid loss reducing agent A1 in water-base drilling fluid, i.e., according to
Lower recipe configuration water-base drilling fluid DFl：100 parts by weight of water, 4 parts by weight of bentonite, II 5 weight of sulfonated-pheno-formoldehyde resin SMP-
Part, 5 parts by weight of sulfonated lignite resin SPNH, 5 parts by weight of sulfonated gilsonite, 5 parts by weight of sulfonated lignite resin SMC, 3 weight of potassium chloride
Measure part, 3 parts by weight of graphite.
Comparative example 2
Comparison water-base drilling fluid DF2 is prepared according to formula as below：100 parts by weight of water, 4 parts by weight of bentonite, polymer packet
By 3 parts by weight of agent JT888, II 5 parts by weight of sulfonated-pheno-formoldehyde resin SMP-, 5 parts by weight of sulfonated lignite resin SPNH, sulfonation drip
Green 5 parts by weight, 5 parts by weight of sulfonated lignite resin SMC, 3 parts by weight of potassium chloride, 3 parts by weight of graphite.
Comparative example 3
Water-base drilling fluid is prepared according to the method for embodiment 1, unlike, heat resisting fluid loss reducing agent used is DA1, system
Obtain water-base drilling fluid DF3.
Comparative example 4
Water-base drilling fluid is prepared according to the method for embodiment 1, unlike, heat resisting fluid loss reducing agent used is DA2, system
Obtain water-base drilling fluid DF4.
Comparative example 5
Water-base drilling fluid is prepared according to the method for embodiment 1, unlike, heat resisting fluid loss reducing agent used is DA3, system
Obtain water-base drilling fluid DF5.
Comparative example 6
Water-base drilling fluid is prepared according to the method for embodiment 1, unlike, heat resisting fluid loss reducing agent DA4 used is made
Water-base drilling fluid DF6.
Comparative example 7
Water-base drilling fluid is prepared according to the method for embodiment 1, unlike, heat resisting fluid loss reducing agent used is DA5, system
Obtain water-base drilling fluid DF7.
Test case 1
The above-mentioned drilling fluid Fl-F3 and DF1-DF7 of 400mL are taken respectively, and sodium chloride is added to saturation and 1.0wt% is added
CaCl2, after stirring 20min at 5000rpm, it is packed into ageing can, is put into roller furnace, at 220 DEG C, after constant temperature rolls 16h,
Taking-up is cooled to room temperature, then 20min is stirred at 5000rpm, then measures above-mentioned brill respectively according to GB/T16783.1-2006
The apparent viscosity (AV, mPa.s) of well liquid, plastic viscosity (PV, mPa.s), yield value (YP, Pa), 10s and 10min gel strengths, in
Press API dehydrations (FL, mL) and high temperature and pressure dehydration (FLHTHP, mL, 220 DEG C), it the results are shown in Table 1.
Table 1
By the data of table 1 it is found that in saturated sodium-chloride, 1.0wt%CaCl2Under the conditions of, water-base drilling fluid of the invention is still
So have lower API filtration and high temperature and high pressure filter loss, show the present invention water-base drilling fluid meet saturated sodium-chloride,
1.0wt%CaCl2Under the conditions of the requirement of (220 DEG C) of high temperature resistance.
Test case 2
The above-mentioned drilling fluid Fl-F3 and DF1-DF7 of 400mL are taken respectively, and sodium chloride is added to saturation and 1.0wt% is added
CaCl2, it is 2.2g/cm to be weighed out to density with barite3, after stirring 20min at 5000rpm, it is packed into ageing can, is put into roller
In stove, at 220 DEG C, constant temperature roll 16h after, taking-up is cooled to room temperature, then 20min is stirred at 5000rpm, then according to
GB/T16783.1-2006 measures the apparent viscosity (AV, mPa.s) of above-mentioned drilling fluid, plastic viscosity (PV, mPa.s), moves respectively
Shear force (YP, Pa), 10s and 10min gel strengths, middle pressure API dehydrations (FL, mL) and high temperature and pressure dehydration (FLHTHP, mL, 220
DEG C), it the results are shown in Table 2.
Table 2
By the data of table 2 it is found that density is 2.2g/cm3, saturated sodium-chloride, 1.0wt%CaCl2Under the conditions of, it is of the invention
Water-base drilling fluid has lower API filtration and high temperature and high pressure filter loss, shows that the water-base drilling fluid of the present invention meets high mine
(220 DEG C) requirements of high temperature resistance under change degree conditions of high density.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of simple variants to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (12)
1. a kind of heat resisting fluid loss reducing agent, which is characterized in that the heat resisting fluid loss reducing agent be copolymerized by a kind of monomer composition and
At, the monomer composition contain dimethyl diallyl ammonium chloride, acrylamide, 2- acrylamide-2-methylpro panesulfonic acids,
N, N- dimethacrylamide and p-methylstyrene.
2. heat resisting fluid loss reducing agent according to claim 1, which is characterized in that in the monomer composition, dimethyl
Diallyl ammonium chloride, acrylamide, 2- acrylamide-2-methylpro panesulfonic acids, N, N- dimethacrylamide and to methyl
The molar ratio of styrene is 1：(0.5-3)：(1-5)：(0.5-5)：(0.5-4), preferably 1：(1.5-2.5)：(3-5)：(1-
3)：(1-3).
3. the preparation method of heat resisting fluid loss reducing agent as claimed in claim 1 or 2, which is characterized in that this method includes：In conduct
In the presence of the water of solvent, surfactant and initiator, by dimethyl diallyl ammonium chloride, acrylamide, 2- acryloyls
Amido -2- methyl propane sulfonic acids, N, N- dimethacrylamide and p-methylstyrene carry out polymerisation.
4. according to the method described in claim 3, it is characterized in that, water relative to 100 parts by weight, the surfactant
Dosage is 0.1-0.5 parts by weight, and the dosage of the initiator is 8-12 parts by weight, the use of the dimethyl diallyl ammonium chloride
Amount is 1-10 parts by weight.
5. according to the method described in claim 4, it is characterized in that, methyl diallyl ammonium chloride, acrylamide, 2- acryloyls
The dosage molar ratio of amido -2- methyl propane sulfonic acids, N, N- dimethacrylamide and p-methylstyrene is 1：(0.5-3)：(1-
5)：(0.5-5)：(0.5-4), preferably 1：(1.5-2.5)：(3-5)：(1-3)：(1-3).
6. according to the method described in any one of claim 3-5, which is characterized in that the initiator is water-soluble azo class
Initiator.
7. according to the method described in claim 6, it is characterized in that, the water-soluble azo class initiator is two NSC 18620 of azo
At least one of hydrochloride, two isobutyl imidazoline hydrochloride of azo, azo dicyano valeric acid and azo dicyclohexyl formonitrile HCN.
8. according to the method described in any one of claim 3-5, which is characterized in that the surfactant is sulfuric acid lipid
Surfactant.
9. according to the method described in any one of claim 3-5, which is characterized in that the condition of the polymerisation includes：
PH is 6.5-7.5, and temperature is 40-60 DEG C, time 5-8h.
10. a kind of water-base drilling fluid, which is characterized in that the water-base drilling fluid contains high temperature resistance drop filter as claimed in claim 1 or 2
Lose agent, sulfonated-pheno-formoldehyde resin, sulfonated lignite resin, sulfonated gilsonite, sulfonated lignite, potassium chloride, graphite, bentonite and water.
11. water-base drilling fluid according to claim 10, which is characterized in that relative to the water of 100 parts by weight, the anti-height
The content of temperature drop fluid loss agents is 2-4 parts by weight, the content of the sulfonated-pheno-formoldehyde resin is 3-5 parts by weight, the sulfonated lignite
The content of resin is 3-5 parts by weight, the content of the sulfonated gilsonite is 3-5 parts by weight, the content of the sulfonated lignite is 3-5 weights
Measure part, the content of the potassium chloride is 1-3 parts by weight, the content of the graphite is 1-3 parts by weight, the bentonitic content is
2-5 parts by weight.
12. application of the water-base drilling fluid in the gypsum-salt stratum drilling well of deep described in claim 10 or 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810278560.1A CN108641683B (en) | 2018-03-30 | 2018-03-30 | A kind of high salinity high-density water-based drilling fluid resistant to high temperatures and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810278560.1A CN108641683B (en) | 2018-03-30 | 2018-03-30 | A kind of high salinity high-density water-based drilling fluid resistant to high temperatures and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108641683A true CN108641683A (en) | 2018-10-12 |
| CN108641683B CN108641683B (en) | 2019-05-24 |
Family
ID=63745067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810278560.1A Active CN108641683B (en) | 2018-03-30 | 2018-03-30 | A kind of high salinity high-density water-based drilling fluid resistant to high temperatures and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108641683B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852353A (en) * | 2019-01-22 | 2019-06-07 | 北京宏勤石油助剂有限公司 | A kind of drilling fluid heat resisting fluid loss reducing agent and preparation method thereof |
| CN109867742A (en) * | 2019-03-14 | 2019-06-11 | 广汉恒奕石油技术开发有限责任公司 | A kind of production method of third ethylene copolymer |
| CN114316925A (en) * | 2020-10-10 | 2022-04-12 | 中国石油天然气股份有限公司 | Fluid loss additive composition, fluid loss additive, water-based drilling fluid composition and water-based drilling fluid |
| CN114805680A (en) * | 2022-05-24 | 2022-07-29 | 中国石油大学(华东) | Environment-friendly high-temperature-resistant salt-resistant tackifier for water-based drilling fluid and preparation method and application thereof |
| CN116082570A (en) * | 2023-01-11 | 2023-05-09 | 西南石油大学 | Nano composite filtrate reducer for high-temperature-resistant water-based drilling fluid and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851011A (en) * | 2011-06-30 | 2013-01-02 | 长江大学 | Polymer drilling fluid with high temperature resistance |
| CN103509535A (en) * | 2012-06-29 | 2014-01-15 | 中国石油化工股份有限公司 | Filtrate loss reduction method for water-based drilling fluid, and preparation method for filtrate loss reducer |
| CN104059623A (en) * | 2014-06-13 | 2014-09-24 | 中国石油集团渤海钻探工程有限公司 | High-temperature-resistant salt-resistant fluid loss agent and preparation method thereof |
| CN104140794A (en) * | 2013-10-28 | 2014-11-12 | 中国石油化工股份有限公司 | High temperature resistant oil-in-water drilling fluid |
| CN104403645A (en) * | 2014-11-05 | 2015-03-11 | 西南石油大学 | Fluid loss agent and preparation method thereof |
| CN105199690A (en) * | 2014-06-23 | 2015-12-30 | 天津中油渤星工程科技有限公司 | Oil well cement high temperature resistance suspending agent |
| CN106046251A (en) * | 2016-05-26 | 2016-10-26 | 西南石油大学 | Temperature-resistant and salt-tolerant polymeric filtrate loss reducer for water-based drilling fluid and method for preparing temperature-resistant and salt-tolerant polymeric filtrate loss reducer |
| CN106520086A (en) * | 2015-09-11 | 2017-03-22 | 中国石油化工集团公司 | Water-based drilling fluid for hot dry rocks and preparation method thereof |
| CN107312510A (en) * | 2017-07-12 | 2017-11-03 | 西南石油大学 | High-temperature cross-linking Drilling Fluid Technique for Deep and preparation method thereof |
-
2018
- 2018-03-30 CN CN201810278560.1A patent/CN108641683B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851011A (en) * | 2011-06-30 | 2013-01-02 | 长江大学 | Polymer drilling fluid with high temperature resistance |
| CN103509535A (en) * | 2012-06-29 | 2014-01-15 | 中国石油化工股份有限公司 | Filtrate loss reduction method for water-based drilling fluid, and preparation method for filtrate loss reducer |
| CN104140794A (en) * | 2013-10-28 | 2014-11-12 | 中国石油化工股份有限公司 | High temperature resistant oil-in-water drilling fluid |
| CN104059623A (en) * | 2014-06-13 | 2014-09-24 | 中国石油集团渤海钻探工程有限公司 | High-temperature-resistant salt-resistant fluid loss agent and preparation method thereof |
| CN105199690A (en) * | 2014-06-23 | 2015-12-30 | 天津中油渤星工程科技有限公司 | Oil well cement high temperature resistance suspending agent |
| CN104403645A (en) * | 2014-11-05 | 2015-03-11 | 西南石油大学 | Fluid loss agent and preparation method thereof |
| CN106520086A (en) * | 2015-09-11 | 2017-03-22 | 中国石油化工集团公司 | Water-based drilling fluid for hot dry rocks and preparation method thereof |
| CN106046251A (en) * | 2016-05-26 | 2016-10-26 | 西南石油大学 | Temperature-resistant and salt-tolerant polymeric filtrate loss reducer for water-based drilling fluid and method for preparing temperature-resistant and salt-tolerant polymeric filtrate loss reducer |
| CN107312510A (en) * | 2017-07-12 | 2017-11-03 | 西南石油大学 | High-temperature cross-linking Drilling Fluid Technique for Deep and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852353A (en) * | 2019-01-22 | 2019-06-07 | 北京宏勤石油助剂有限公司 | A kind of drilling fluid heat resisting fluid loss reducing agent and preparation method thereof |
| CN109852353B (en) * | 2019-01-22 | 2021-03-16 | 北京宏勤石油助剂有限公司 | High-temperature-resistant fluid loss additive for drilling fluid and preparation method thereof |
| CN109867742A (en) * | 2019-03-14 | 2019-06-11 | 广汉恒奕石油技术开发有限责任公司 | A kind of production method of third ethylene copolymer |
| CN114316925A (en) * | 2020-10-10 | 2022-04-12 | 中国石油天然气股份有限公司 | Fluid loss additive composition, fluid loss additive, water-based drilling fluid composition and water-based drilling fluid |
| CN114805680A (en) * | 2022-05-24 | 2022-07-29 | 中国石油大学(华东) | Environment-friendly high-temperature-resistant salt-resistant tackifier for water-based drilling fluid and preparation method and application thereof |
| CN114805680B (en) * | 2022-05-24 | 2023-04-28 | 中国石油大学(华东) | Environment-friendly high-temperature-resistant salt-resistant tackifier for water-based drilling fluid and preparation method and application thereof |
| CN116082570A (en) * | 2023-01-11 | 2023-05-09 | 西南石油大学 | Nano composite filtrate reducer for high-temperature-resistant water-based drilling fluid and preparation method thereof |
| CN116082570B (en) * | 2023-01-11 | 2024-06-07 | 西南石油大学 | Nano composite filtrate reducer for high-temperature-resistant water-based drilling fluid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108641683B (en) | 2019-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108641683B (en) | A kind of high salinity high-density water-based drilling fluid resistant to high temperatures and its application | |
| CA2920932C (en) | Cationic copolymer and use thereof in lost circulation additive | |
| CN104610485B (en) | Amphipathic container horizon protective agent and its preparation method and application and drilling fluid and application thereof | |
| US6395853B1 (en) | Water-soluble copolymers and their use for exploration and production of petroleum and natural gas | |
| US5186257A (en) | Polymers useful in the recovery and processing of natural resources | |
| CN104650823B (en) | Height ooze extra-high ooze reservoir protective material composition and drilling fluid and application thereof | |
| CN108715624B (en) | Ultrahigh-temperature-resistant composite-salt-resistant zwitterionic hydrophobically-associating polymer fluid loss agent and preparation method thereof | |
| CN102191027B (en) | High-temperature-resistant dispersed fluid loss agent for oil well cement and preparation method thereof | |
| US4521578A (en) | Composition and method of preparation of novel aqueous drilling fluid additives | |
| CN109439298A (en) | The water-base drilling fluid sealing agent and its drilling fluid of a kind of anticalcium resistant to high temperatures protection oil and gas reservoir and application | |
| CN109401735B (en) | Water-based drilling fluid capable of resisting high temperature and calcium and protecting oil and gas reservoir and application thereof | |
| CN101302266B (en) | Water-soluble micro-crosslinked copolymer, preparation and use thereof | |
| CN106749891B (en) | It is applicable amphoteric ion copolymer of drilling fluid filtrate reducing and its preparation method and application and drilling fluid and its application | |
| CN115160513B (en) | 240 ℃ high-temperature resistant high-salt resistant rigid-flexible blocking agent and preparation method thereof | |
| CN108531147A (en) | A kind of water-base drilling fluid of the stable shale gas stratum borehole wall and its application | |
| CN104926989B (en) | Acrylamide type polymer, preparation method and applications thereof | |
| CN114773539A (en) | High-temperature-resistant high-salt-resistant micro-crosslinking hydrophobic association tackifying filtrate reducer for water-based drilling fluid and preparation method thereof | |
| CN109535317A (en) | A kind of anticalcium resistant to high temperatures protection oil and gas reservoir water-base drilling fluid fluid loss additive and drilling fluid and its application | |
| CN106749836B (en) | Copolymer suitable for filtrate reducing with temperature resistance anticalcium ability and its preparation method and application and drilling fluid and its application | |
| CN112745454B (en) | Thickener for high-temperature deep well acidification and preparation method thereof | |
| CN110305639A (en) | Water-base drilling fluid and its application | |
| CN115260373B (en) | High Wen Gaogai-resistant flexible plugging agent and preparation method and application thereof | |
| CN104292129B (en) | A kind of dendroid monomer, using inorganic agent of the monomer and preparation method thereof | |
| CN105086962B (en) | A kind of drilling fluid of strong inhibition capability and preparation method and application | |
| CN115772243B (en) | Tackifier for solid-free drilling fluid and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200120 Address after: 266580 Qingdao Changjiang Road, Huangdao District, Shandong, No. 66 Co-patentee after: China Petroleum Group Engineering and Technology Research Institute Co., Ltd. Patentee after: China University of Petroleum (East China) Address before: 266580 Qingdao Changjiang Road, Huangdao District, Shandong, No. 66 Patentee before: China University of Petroleum (East China) |
|
| TR01 | Transfer of patent right |