CN105441041A - Cationic type blocking agent for drilling fluid and preparation method of cationic type blocking agent - Google Patents
Cationic type blocking agent for drilling fluid and preparation method of cationic type blocking agent Download PDFInfo
- Publication number
- CN105441041A CN105441041A CN201510849057.3A CN201510849057A CN105441041A CN 105441041 A CN105441041 A CN 105441041A CN 201510849057 A CN201510849057 A CN 201510849057A CN 105441041 A CN105441041 A CN 105441041A
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- cationic
- ammonium chloride
- diethyl maleate
- plugging agent
- 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
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
- C08F212/08—Styrene
-
- 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
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
- C08F212/12—Monomers containing a branched unsaturated aliphatic radical or a ring substituted by an alkyl radical
-
- 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
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/34—Monomers containing two or more unsaturated aliphatic radicals
- C08F212/36—Divinylbenzene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Colloid Chemistry (AREA)
Abstract
The invention relates to a cationic type blocking agent for a drilling fluid. The cationic type blocking agent is obtained by polymerizing styrene monomers, acrylate monomers and polymerizable functional monomers containing cationic groups in deionized water under the action of an initiator. The surface of the product has rich cationic groups, multi-point adsorption can be realized between the product and clay minerals, and the product can play roles in improving the quality of mud cakes, controlling the filter loss of the drilling fluid and strengthening well walls.
Description
Technical field
The present invention relates to a kind of drilling fluid cationic plugging agent and preparation method thereof, belong to technical field of oilfield chemistry.
Background technology
Along with the increase of drilling geology complicacy, bore that to meet the probability of borehole problems more and more higher, emphasize that drilling fluid sealing characteristics has almost become one of technical indicator that all kinds of drilling fluid must emphasize.Add the plugging material of suitable size distribution, effectively can improve " waterpower wedge " effect of drilling fluid filtrate and the borehole well instability phenomenon that causes.
Ultrafine calcium plugging agent particle size distribution range is wide, reasonable price, can use in oil base drilling fluid and water-base drilling fluid, is the most a kind of plugging material that current drilling liquid technology field uses.But ultrafine calcium belongs to inertia solid phase material, substantially without reactive force between its inactive surfaces and mud particles, the mud cake flushing resistance of formation is poor, too high intensity and the lubrication energy that also can affect mud cake of dosage.
In recent years, the research utilizing macromolecule synthesising technology to prepare polymer class plugging agent becomes focus.Polymer class plugging agent is main chain mainly with oil soluble styrenic, acrylic ester monomer, and by suitable crosslinking technological, forms the Powdered or emulsion form product of size distribution extensive (nano-micrometre scope).While such treatment agent is applicable to the shutoff of all kinds of hole, also there is certain deformability, and can and other treatment agents between distortion, filling, high temperature the effect such as to cohere, contribute to forming thin and tough mud cake.But such treatment agent still belongs to inert material for wilkinite or the borehole wall, therefore its effect is still limited to physics shutoff.
Summary of the invention
Object of the present invention provides a kind of drilling fluid cationic plugging agent, while this plugging agent can improve drilling fluid sealing characteristics, improves borehole wall stability by strengthening the electrostatic adsorption of plugging agent and clay mineral.
Another object of the present invention is the preparation method providing a kind of drilling fluid with cationic plugging agent, and reaction conditions is gentle, controlled, and product aftertreatment technology is simple, easy-to-use industrialization.Products obtained therefrom may be used for oil base drilling fluid, water-base drilling fluid property regulation.
Technical scheme of the present invention is:
The cationic plugging agent of a kind of drilling fluid, by styrene monomer, acrylic ester monomer and have the monomer of polymerizable functional in deionized water containing cation group, polymerization under initiator effect and obtaining; Styrene monomer, acrylic ester monomer and the mass ratio of the monomer of polymerizable functional that has containing cation group are 4-5:1:1.
A drilling fluid preparation method for cationic plugging agent, comprises the following steps:
(1) the mixture A that styrene monomer and acrylic ester monomer form being transferred to the height be fixed on emulsification pretreatment device stirs in cup, wherein the mass ratio 4-5:1 of styrene monomer and acrylic ester monomer;
(2) the mixture B that have polymerized functional monomer and deionized water of preparation containing cation group, the mass ratio of polymerized functional monomer and deionized water that has wherein containing cation group is 1:20-25, and the mass ratio of polymerized functional monomer and styrene monomer that has containing cation group is 1:4-5;
(3) by mixture B, the height be transferred to described in step (1) stirs in cup, starts emulsification pretreatment device, and setting emulsive rate is 5000-8000r/min, stirs 10-15min, obtains mixture C;
(4) mixture C is transferred in the reactor with temperature regulating device, reflux condensation mode, logical nitrogen device and whipping appts, open reactor temperature regulating device, reflux condensate device and whipping appts, design temperature is 70-80 DEG C, stir speed (S.S.) is 300-500r/min;
(5) unlatching passes into nitrogen device, bubbling deoxygenation 10-15min, after question response temperature in the kettle reaches 60-70 DEG C, slowly adds in reactor and accounts for the initiator that mixture C massfraction is 0.3-0.5%;
(6) stop stirring after reactor insulated and stirred reaction 6-8h, thick product in reactor is imported in watch-glass, and watch-glass is transferred in loft drier, forced air drying 7-8h at 50-60 DEG C, namely obtains white powder product and is the cationic plugging agent of drilling fluid of the present invention.
Described styrene monomer is any one or mixture in vinylbenzene, vinyl toluene, 3-vinyl toluene or Vinylstyrene.
Described acrylic ester monomer is any one or mixture in methyl acrylate, isobutyl acrylate, phenyl methacrylate or 3-benzoylacrylate.
The described polymerized functional monomer that has containing cation group is diethyl maleate support group two [(octadecyldimethyl) ammonium chloride], diethyl maleate support group two [(hexadecyldimethyl benzyl ammonium) ammonium chloride], diethyl maleate support group two [(dodecyldimethylamine base) ammonium chloride], diethyl maleate support group two [(dodecyl dimethyl) ammonium chloride], any one in diethyl maleate support group two [(decyl dimethyl) ammonium chloride] and diethyl maleate support group pair [(octyl dimethyl) ammonium chloride].
Described initiator is any one in ammonium sulfate, Potassium Persulphate or Potassium Persulphate-Potassium hydrogen sulfite.
The invention has the beneficial effects as follows:
Drilling fluid of the present invention is that a class is obtained by radical polymerization by styrenic, acrylic ester monomer and the polymerizable function monomer containing cation group with cationic plugging agent.Its surface has abundant cation group, can with clay mineral generation multipoint adsorption, play improvement of mud cake, control drilling fluid filtration, strengthening the borehole wall effect.
Accompanying drawing explanation
Fig. 1 is embodiment 1 product cut size characteristic distributions graphic representation.
Fig. 2 is embodiment 2 product cut size characteristic distributions graphic representation.
Fig. 3 is embodiment 3 product cut size characteristic distributions graphic representation.
Embodiment
Enumerate specific embodiment below, so that product of the present invention and preparation process thereof to be described.
Embodiment 1
16g vinylbenzene after refining and 4g methyl acrylate are transferred to the height be fixed on emulsification pretreatment device to be stirred in cup, the mixture solution (wherein comprising 4g diethyl maleate support group two [(octadecyldimethyl) ammonium chloride] and 100g deionized water) of diethyl maleate support group two [(octadecyldimethyl) ammonium chloride] and deionized water is added again in this reactor, start emulsifier unit, setting emulsive rate is 5000r/min, obtains mixture after emulsification 15min.Gained mixture is transferred in the reactor of band reflux condensation mode, logical nitrogen, temperature control and whipping appts, is passing under high-purity nitrogen gas bell deoxygenation condition, starting stirring, reflux condensation mode agent temperature regulating device, setting stir speed (S.S.) is 300r/min, temperature is 70 DEG C.When reaching 60 DEG C in question response still, in still, add 0.37g ammonium persulphate.Stop stirring after logical nitrogen insulation reaction 8h.Imported in watch-glass by thick product in reactor, and be transferred in loft drier by watch-glass, forced air drying 8h at 50 DEG C, namely obtains white powder product and is the cationic plugging agent of drilling fluid of the present invention, be designated as S-I.
Embodiment 2
6g vinylbenzene, 10g vinyl toluene and 4g isobutyl acrylate after refining is transferred to the height be fixed on emulsification pretreatment device stirs in cup, the mixture solution (wherein comprising 4g diethyl maleate support group two [(hexadecyldimethyl benzyl ammonium) ammonium chloride] and 80g deionized water) adding diethyl maleate support group two [(hexadecyldimethyl benzyl ammonium) ammonium chloride] and deionized water is stirred in cup again to this height, start emulsifier unit, setting emulsive rate is 6000r/min, obtains mixture after emulsification 12min.Gained mixture is transferred in the reactor of band reflux condensation mode, logical nitrogen, temperature control and whipping appts, is passing under high-purity nitrogen gas bell deoxygenation condition, starting stirring, reflux condensation mode agent temperature regulating device, setting stir speed (S.S.) is 400r/min, temperature is 80 DEG C.When reaching 70 DEG C in question response still, in still, add 0.50g Potassium Persulphate-Potassium hydrogen sulfite, stop stirring after logical nitrogen insulation reaction 6h.Imported in watch-glass by thick product in reactor, and be transferred in loft drier by watch-glass, forced air drying 7h at 60 DEG C, namely obtains white powder product and is the cationic plugging agent of drilling fluid of the present invention, be designated as S-II.
Embodiment 3
10g vinylbenzene, 8g3-vinyl toluene and 2g phenyl methacrylate after refining, 2g isobutyl acrylate are transferred to the height be fixed on emulsification pretreatment device and stir in cup, the mixture solution (wherein comprising 4g diethyl maleate support group two [(dodecyldimethylamine base) ammonium chloride] and 88g deionized water) adding diethyl maleate support group two [(dodecyldimethylamine base) ammonium chloride] and deionized water is stirred in cup again to this height, start emulsifier unit, setting stir speed (S.S.) is 8000r/min, keeps 10min.Start emulsifier unit, setting emulsive rate is 6000r/min, obtains mixture after emulsification 12min.Gained mixture is transferred in the reactor of band reflux condensation mode, logical nitrogen, temperature control and whipping appts, is passing under high-purity nitrogen gas bell deoxygenation condition, is starting stirring, reflux condensation mode agent temperature regulating device, setting stir speed (S.S.) is 500r/min, temperature is 75 DEG C.When reaching 65 DEG C in question response still, in still, add 0.50g Potassium Persulphate, stop stirring after logical nitrogen insulation reaction 7h.Imported in watch-glass by thick product in reactor, and be transferred in loft drier by watch-glass, forced air drying 8h at 50 DEG C, namely obtains white powder product and is the cationic plugging agent of drilling fluid of the present invention, be designated as S-III.
Embodiment 4
10g vinylbenzene after refining, 5g Vinylstyrene, 3g phenyl methacrylate are transferred to the height be fixed on emulsification pretreatment device and stir in cup, the mixture solution (wherein comprising 3g diethyl maleate support group two [(dodecyl dimethyl) ammonium chloride] and 75g deionized water) adding diethyl maleate support group two [(dodecyl dimethyl) ammonium chloride] and deionized water is stirred in cup again to this height, start emulsifier unit, setting emulsive rate is 6000r/min, obtains mixture after emulsification 15min.Passing under high-purity nitrogen gas bell deoxygenation condition, starting stirring, reflux condensation mode agent temperature regulating device, setting stir speed (S.S.) is 400r/min, temperature is being 80 DEG C.When reaching 70 DEG C in question response still, in still, add 0.50g ammonium persulphate, stop stirring after logical nitrogen insulation reaction 7h.Imported in watch-glass by thick product in reactor, and be transferred in loft drier by watch-glass, forced air drying 8h at 50 DEG C, namely obtains white powder product and is the cationic plugging agent of drilling fluid of the present invention, be designated as S-IV.
Embodiment 5
10g vinylbenzene, 10g Vinylstyrene and 3g phenyl methacrylate after refining, 2g methyl acrylate are transferred to the height be fixed on emulsification pretreatment device and stir in cup, the mixture solution (wherein comprising 5g diethyl maleate support group two [(decyl dimethyl) ammonium chloride] and 110g deionized water) adding diethyl maleate support group two [(decyl dimethyl) ammonium chloride] and deionized water is stirred in cup again to this height, start emulsifier unit, setting emulsive rate is 8000r/min, obtains mixture after emulsification 10min.Gained mixture is transferred in the reactor of band reflux condensation mode, logical nitrogen, temperature control and whipping appts, is passing under high-purity nitrogen gas bell deoxygenation condition, is starting stirring, reflux condensation mode agent temperature regulating device, setting stir speed (S.S.) is 400r/min, temperature is 80 DEG C.When reaching 70 DEG C in question response still, in still, add 0.50g Potassium Persulphate, stop stirring after logical nitrogen insulation reaction 6h.Imported in watch-glass by thick product in reactor, and be transferred in loft drier by watch-glass, forced air drying 8h at 50 DEG C, namely obtains white powder product and is the cationic plugging agent of drilling fluid of the present invention, be designated as S-V.
Embodiment 6
10g vinylbenzene after refining and 6g Vinylstyrene, 4g3-benzoylacrylate are transferred to the height be fixed on emulsification pretreatment device to be stirred in cup; the mixture solution (wherein comprising 4g diethyl maleate support group two [(octyl dimethyl) ammonium chloride] and 125g deionized water) adding diethyl maleate support group two [(octyl dimethyl) ammonium chloride] and deionized water is stirred in cup again to this height; start emulsifier unit; setting emulsive rate is 6000r/min, obtains mixture after emulsification 15min.Gained mixture is transferred in the reactor of band reflux condensation mode, logical nitrogen, temperature control and whipping appts, is passing under high-purity nitrogen gas bell deoxygenation condition, is starting stirring, reflux condensation mode agent temperature regulating device, setting stir speed (S.S.) is 400r/min, temperature is 75 DEG C.When reaching 68 DEG C in question response still, in still, add 0.64g potassium sulfate-Potassium hydrogen sulfite, stop stirring after logical nitrogen insulation reaction 8h.Imported in watch-glass by thick product in reactor, and be transferred in loft drier by watch-glass, forced air drying 8h at 50 DEG C, namely obtains white powder product and is the cationic plugging agent of drilling fluid of the present invention, be designated as S-VI.
Above about specific descriptions of the present invention, be only not limited to the technical scheme described by the embodiment of the present invention for illustration of the present invention.Those of ordinary skill in the art should be appreciated that and still can modify to the present invention or equivalent replacement, to reach identical technique effect.Needs are used, all in protection scope of the present invention as long as meet.
The advantage that the present invention is compared with prior art had and effect, the Lab-evaluation that drilling fluid of the present invention is used in water base, oil base drilling fluid system with cationic plugging agent is as follows.
(1) cationic plugging agent particle size distribution characteristic
Utilize laser fineness gage, in testing example 1, the particle size distribution characteristic of embodiment 3 and embodiment 5 is in table 1.
The performance evaluation of cationic plugging agent in drilling fluid
1. number oil base drilling fluid layoutprocedure: 6g flow pattern regulator polystyrene is joined the height filling 270mL5# white oil and stirs in cup, after high-speed stirring 10min, add 6g tackifier organophilic clay, high-speed stirring 30min, add 3g primary emulsion PF-MOMUL-1, the auxiliary emulsifying agent PF-MOCOAT of 3g, 6g wetting agent SPAN-80, high-speed stirring 10min, add 30mL25% calcium chloride water, 12g pitch class fluid loss agent BZ-OFL-II and 9g alkalinity control agent CaO, after high-speed stirring 10min, add 400g barite, high-speed stirring 20min, namely the oil base drilling fluid that water oil ratio is 90:10 is obtained, be denoted as 1. number oil base drilling fluid.
2. number oil base drilling fluid layoutprocedure: 6g flow pattern regulator polystyrene is joined the height filling 270mL5# white oil and stirs in cup, after high-speed stirring 10min, add 6g tackifier organophilic clay, high-speed stirring 30min, add 3g primary emulsion PF-MOMUL-1, the auxiliary emulsifying agent PF-MOCOAT of 3g, 6g wetting agent SPAN-80, high-speed stirring 10min, add 30mL25% calcium chloride water, 6g pitch class fluid loss agent BZ-OFL-II, 6g the present invention synthesizes plugging agent S-V and 9g alkalinity control agent CaO, after high-speed stirring 10min, add 400g barite, high-speed stirring 20min, namely the oil base drilling fluid that water oil ratio is 90:10 is obtained, be denoted as 2. number oil base drilling fluid.
3. number water-base drilling fluid preparation: add 8g soda ash and 100g calcium bentonite in 1000mL tap water, high-speed stirring 20min, after room temperature leaves standstill and places 48h, add 360g sodium-chlor wherein again, high-speed stirring 10min, room temperature leaves standstill places 24h, obtains 3. number water-base drilling fluid.
4. number water-base drilling fluid preparation: add 8g soda ash and 100g calcium bentonite in 1000mL tap water, high-speed stirring 20min, after room temperature leaves standstill and places 48h, add the sodium-chlor of 36% more wherein, high-speed stirring 10min, add 20g the present invention and synthesize plugging agent S-III, room temperature leaves standstill places 24h, obtains 4. number water-base drilling fluid.
Above-mentioned 1 ~ No. 4 drilling fluid is through 150 DEG C of high temperature ageing 16h.Cold going tests its rheological parameter and filter loss after 50 DEG C, and test result is in table 2.
In table 2, AV, apparent viscosity; PV, plastic viscosity; YP, yield value; YP/PV, ratio of dynamic shear force/yield value to plastic viscosity; Gel
10s, zero gel; Gel
10min, 10-minute gel strength; FL
aPIfor low-temp low-pressure filter loss; FL
hTHPfor high temperature and high pre ssure filtration, probe temperature is identical with aging temperature, and test pressure is 3.5MPa.
(2) cationic plugging agent sealing characteristics is evaluated
Particle diameter is join in FA type non-infiltration drilling fluid filtration device after the quartz sand drying of 0.3 ~ 0.6nm, by configure according to above-mentioned steps 1. ~ 2. number drilling fluid, pour in casting bed after the 16h that rolls at 150 DEG C.Filtration device sealing pressing is to 0.69MPa, and Sand bed filtration and invasion depth in test 30min, the results are shown in Table 3.
Above result shows, by the adjustment of different proportioning raw materials, synthetic parameters, can obtain size distribution product widely.The product obtained effectively can control the filter loss of drilling fluid, improve the sealing characteristics of drilling fluid, also has certain effect to the improvement of the rheological property of drilling fluid simultaneously.To sum up, the present invention is conducive to reducing " waterpower wedge " effect, strengthens borehole wall stability.
Table 1 embodiment 1,3,5 product cut size distributes
| Embodiment | D 10/nm | D 50/nm | D 90/nm |
| Embodiment 1 sample | 260 | 410 | 690 |
| Embodiment 3 sample | 1390 | 2090 | 3180 |
| Embodiment 5 sample | 8600 | 1690 | 2790 |
The performance of the cationic plugging agent of table 2 in drilling fluid
The cationic plugging agent sealing characteristics of table 3 is evaluated
| Numbering | Sand bed filtration/mL | Invasion depth/cm |
| 1. number drilling fluid | -- | 15 |
| 2. number drilling fluid | -- | 6.5 |
Claims (10)
1. the cationic plugging agent of drilling fluid, it is characterized in that by styrene monomer, acrylic ester monomer and containing cation group have polymerized functional monomer in deionized water, under initiator effect polymerization and obtain; Styrene monomer, acrylic ester monomer and the mass ratio of polymerized functional monomer that has containing cation group are 4-5:1:1.
2. the cationic plugging agent of a kind of drilling fluid according to claim 1, is characterized in that described styrene monomer is any one or mixture in vinylbenzene, vinyl toluene, 3-vinyl toluene or Vinylstyrene.
3. the cationic plugging agent of a kind of drilling fluid according to claim 1, is characterized in that described acrylic ester monomer is any one or mixture in methyl acrylate, isobutyl acrylate, phenyl methacrylate or 3-benzoylacrylate.
4. the cationic plugging agent of a kind of drilling fluid according to claim 1, it is characterized in that the described polymerized functional monomer that has containing cation group is diethyl maleate support group two [(octadecyldimethyl) ammonium chloride], diethyl maleate support group two [(hexadecyldimethyl benzyl ammonium) ammonium chloride], diethyl maleate support group two [(dodecyldimethylamine base) ammonium chloride], diethyl maleate support group two [(dodecyl dimethyl) ammonium chloride], any one in diethyl maleate support group two [(decyl dimethyl) ammonium chloride] and diethyl maleate support group pair [(octyl dimethyl) ammonium chloride].
5. the cationic plugging agent of a kind of drilling fluid according to claim 1, is characterized in that described initiator is any one in ammonium sulfate, Potassium Persulphate or Potassium Persulphate-Potassium hydrogen sulfite.
6. prepare a kind of drilling fluid according to claim 1 preparation method of cationic plugging agent, it is characterized in that comprising the following steps:
(1) the mixture A that styrene monomer and acrylic ester monomer form being transferred to the height be fixed on emulsification pretreatment device stirs in cup, wherein the mass ratio 4-5:1 of styrene monomer and acrylic ester monomer;
(2) preparation is containing the polymerizable function monomer of cation group and the mixture B of deionized water, be wherein 1:20-25 containing the polymerizable function monomer of cation group and the mass ratio of deionized water, the polymerizable function monomer containing cation group and the mass ratio of styrene monomer are 1:4-5;
(3) by mixture B, the height be transferred to described in step (1) stirs in cup, starts emulsification pretreatment device, and setting emulsive rate is 5000-8000r/min, stirs 10-15min, obtains mixture C;
(4) mixture C is transferred in the reactor with temperature regulating device, reflux condensation mode, logical nitrogen device and whipping appts, open reactor temperature regulating device, reflux condensate device and whipping appts, design temperature is 70-80 DEG C, stir speed (S.S.) is 300-500r/min;
(5) unlatching passes into nitrogen device, bubbling deoxygenation 10-15min, after question response temperature in the kettle reaches 60-70 DEG C, slowly adds in reactor and accounts for the initiator that mixture C massfraction is 0.3-0.5%;
(6) stop stirring after reactor insulated and stirred reaction 6-8h, thick product in reactor is imported in watch-glass, and watch-glass is transferred in loft drier, forced air drying 7-8h at 50-60 DEG C, namely obtains white powder product and is the cationic plugging agent of drilling fluid of the present invention.
7. a kind of drilling fluid according to claim 6 preparation method of cationic plugging agent, the styrene monomer that it is characterized in that in described step (1) is any one or mixture in vinylbenzene, vinyl toluene, 3-vinyl toluene or Vinylstyrene.
8. a kind of drilling fluid according to claim 6 preparation method of cationic plugging agent, the acrylic ester monomer that it is characterized in that in described step (1) is any one or mixture in methyl acrylate, isobutyl acrylate, phenyl methacrylate or 3-benzoylacrylate.
9. a kind of drilling fluid according to claim 6 preparation method of cationic plugging agent, it is characterized in that the polymerizable function monomer containing cation group described in described step (2) is diethyl maleate support group two [(octadecyldimethyl) ammonium chloride], diethyl maleate support group two [(hexadecyldimethyl benzyl ammonium) ammonium chloride], diethyl maleate support group two [(dodecyldimethylamine base) ammonium chloride], diethyl maleate support group two [(dodecyl dimethyl) ammonium chloride], any one in diethyl maleate support group two [(decyl dimethyl) ammonium chloride] and diethyl maleate support group pair [(octyl dimethyl) ammonium chloride].
10. a kind of drilling fluid according to claim 6 preparation method of cationic plugging agent, the initiator that it is characterized in that in described step (4) is any one in ammonium sulfate, Potassium Persulphate or Potassium Persulphate-Potassium hydrogen sulfite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849057.3A CN105441041B (en) | 2015-11-29 | 2015-11-29 | A kind of drilling fluid cationic sealing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849057.3A CN105441041B (en) | 2015-11-29 | 2015-11-29 | A kind of drilling fluid cationic sealing agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105441041A true CN105441041A (en) | 2016-03-30 |
| CN105441041B CN105441041B (en) | 2018-05-25 |
Family
ID=55551698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510849057.3A Active CN105441041B (en) | 2015-11-29 | 2015-11-29 | A kind of drilling fluid cationic sealing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105441041B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107501456A (en) * | 2017-08-25 | 2017-12-22 | 江苏师范大学 | A kind of preparation method of drilling fluid cationic sealing agent |
| CN107686720A (en) * | 2016-08-03 | 2018-02-13 | 中国石油集团长城钻探工程有限公司钻井液公司 | A kind of shale gas strata drilling liquid film forming sealing agent and preparation method thereof |
| CN111302960A (en) * | 2020-03-31 | 2020-06-19 | 常州大学 | Polymerizable surfactant with reducibility and preparation method thereof |
| CN114381242A (en) * | 2022-01-24 | 2022-04-22 | 西南石油大学 | Modified manganese dioxide nano hydrogel plugging agent and water-based drilling fluid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434893A (en) * | 2000-06-14 | 2003-08-06 | 翁德奥纳尔科能源服务有限公司 | Composition and method for recovering hydrocarbon fluids from subterranean reservoir |
| CN102268166A (en) * | 2010-06-03 | 2011-12-07 | 北京化工大学 | Preparation method of terpolymer for oilfield water plugging |
| CA2635839C (en) * | 2005-12-30 | 2012-02-07 | Huian Yi | Starch-(meth)acrylate graft copolymer, oil-swellable material and oil-and water-swellable material comprising the same, and sealing articles and packers prepared from said swellable material |
| WO2013150203A1 (en) * | 2012-04-03 | 2013-10-10 | S.P.C.M. Sa | New aqueous fracturing fluid composition and fracturing method implementing the fluid |
| WO2014120437A1 (en) * | 2013-01-31 | 2014-08-07 | Ecolab Usa Inc. | Mobility control polymers for enhanced oil recovery |
| CN104974398A (en) * | 2015-07-01 | 2015-10-14 | 柳州蔚园塑料彩印包装有限责任公司 | Mulching film degraded via light-microorganism synergetic degradation, and preparation method thereof |
| CN105085799A (en) * | 2015-08-25 | 2015-11-25 | 北京熠海能源科技有限公司 | Preparation method and application of dilatation-retarding nano elastic microsphere in-depth profile controlling and oil displacing agent |
-
2015
- 2015-11-29 CN CN201510849057.3A patent/CN105441041B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434893A (en) * | 2000-06-14 | 2003-08-06 | 翁德奥纳尔科能源服务有限公司 | Composition and method for recovering hydrocarbon fluids from subterranean reservoir |
| CA2635839C (en) * | 2005-12-30 | 2012-02-07 | Huian Yi | Starch-(meth)acrylate graft copolymer, oil-swellable material and oil-and water-swellable material comprising the same, and sealing articles and packers prepared from said swellable material |
| CN102268166A (en) * | 2010-06-03 | 2011-12-07 | 北京化工大学 | Preparation method of terpolymer for oilfield water plugging |
| WO2013150203A1 (en) * | 2012-04-03 | 2013-10-10 | S.P.C.M. Sa | New aqueous fracturing fluid composition and fracturing method implementing the fluid |
| WO2014120437A1 (en) * | 2013-01-31 | 2014-08-07 | Ecolab Usa Inc. | Mobility control polymers for enhanced oil recovery |
| CN104974398A (en) * | 2015-07-01 | 2015-10-14 | 柳州蔚园塑料彩印包装有限责任公司 | Mulching film degraded via light-microorganism synergetic degradation, and preparation method thereof |
| CN105085799A (en) * | 2015-08-25 | 2015-11-25 | 北京熠海能源科技有限公司 | Preparation method and application of dilatation-retarding nano elastic microsphere in-depth profile controlling and oil displacing agent |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107686720A (en) * | 2016-08-03 | 2018-02-13 | 中国石油集团长城钻探工程有限公司钻井液公司 | A kind of shale gas strata drilling liquid film forming sealing agent and preparation method thereof |
| CN107501456A (en) * | 2017-08-25 | 2017-12-22 | 江苏师范大学 | A kind of preparation method of drilling fluid cationic sealing agent |
| CN107501456B (en) * | 2017-08-25 | 2019-07-30 | 江苏师范大学 | A kind of preparation method of drilling fluid cationic sealing agent |
| CN111302960A (en) * | 2020-03-31 | 2020-06-19 | 常州大学 | Polymerizable surfactant with reducibility and preparation method thereof |
| US11674108B2 (en) | 2020-03-31 | 2023-06-13 | Changzhou University | Polymerizable surfactant with reducibility and preparation method therefor |
| CN114381242A (en) * | 2022-01-24 | 2022-04-22 | 西南石油大学 | Modified manganese dioxide nano hydrogel plugging agent and water-based drilling fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105441041B (en) | 2018-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106866880B (en) | Polydispersion polyacrylamide microsphere system and preparation method thereof | |
| CN105441041A (en) | Cationic type blocking agent for drilling fluid and preparation method of cationic type blocking agent | |
| CN103525379A (en) | Polymer nano-silica temperature-resistant, salt-tolerant and fluid loss reducing agent and preparation method thereof | |
| CN105884954A (en) | Temperature-resistant and salt-resistant latex blocking agent and preparation method thereof | |
| CN105524215A (en) | Heatproof salt-resistant acrylamide polymer microsphere dispersed system and preparation method and use thereof | |
| CN107383273B (en) | A kind of viscous crude activator and preparation method thereof | |
| CN109097008B (en) | Filtrate reducer for soil-phase-free high-density saturated salt water drilling fluid and preparation method thereof | |
| CN113372485B (en) | Water-in-oil type nano emulsion, nano emulsion composite response type variable viscosity acid thickener and preparation method thereof | |
| CN108503744A (en) | Acrylic emulsion and its preparation method and application with nucleocapsid | |
| CN107987807B (en) | Core-shell type oil-based drilling fluid plugging bridging particle and preparation method thereof | |
| CN101298488B (en) | Preparation of cationic polyacrylamide reverse microemulsion | |
| CN113321438B (en) | Slurry-rich concrete additive and preparation method thereof | |
| CN111909306B (en) | Double-aqueous-phase PAM/AMPS nano microsphere latex as well as preparation method and application thereof | |
| CN110818858B (en) | Viscosity-reducing oil-displacing polymer for conventional heavy oil reservoir and preparation method thereof | |
| CN113736016A (en) | High-temperature-resistant polymerization suspension stabilizer cement slurry for oil well cement and preparation method thereof | |
| CN103936914B (en) | High temperature resistance is without fluorescence nano anti-collapse and anti-falling filtration agent and preparation method thereof | |
| Dai et al. | Synthesis and plugging effect of inverse emulsion polymerization microspheres (OPME) for oil-based drilling fluids | |
| CN106632917A (en) | Preparation method of polymer fluid loss agent for sulphoaluminate cement | |
| CN110452670A (en) | Water-base drilling fluid fluid loss additive and preparation method thereof | |
| CN112300346A (en) | Amphoteric ion grafted copolymer fluid loss agent and preparation method and application thereof | |
| CN110016324A (en) | A kind of high-temperature resistant water base drilling fluid extracting and cutting agent and preparation method thereof | |
| CN105349118B (en) | A kind of oil base drilling fluid flow pattern regulator and preparation method thereof | |
| CN110591021A (en) | Humic acid modified filtrate reducer for water-based drilling fluid, preparation method of filtrate reducer and drilling fluid | |
| CN113444505B (en) | Self-adaptive plugging isolation liquid system and preparation method thereof | |
| Peng et al. | Effect of molecular weight of polycarboxylate-type superplasticizer on the rheological properties of cement pastes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |