CN103509535B - The filtrate reducing method of water-base drilling fluid and the preparation method of fluid loss additive - Google Patents
The filtrate reducing method of water-base drilling fluid and the preparation method of fluid loss additive Download PDFInfo
- Publication number
- CN103509535B CN103509535B CN201210219904.4A CN201210219904A CN103509535B CN 103509535 B CN103509535 B CN 103509535B CN 201210219904 A CN201210219904 A CN 201210219904A CN 103509535 B CN103509535 B CN 103509535B
- Authority
- CN
- China
- Prior art keywords
- acrylamide
- accordance
- acid
- sulfonic acid
- kinds
- 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.)
- Active
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
- C08F212/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by heteroatoms or groups containing heteroatoms
-
- 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
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- 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
- C08F220/56—Acrylamide; Methacrylamide
-
- 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
-
- 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
- C08F2400/00—Characteristics for processes of polymerization
- C08F2400/02—Control or adjustment of polymerization parameters
-
- 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
- C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
- C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
Abstract
The present invention relates to filtrate reducing method and the preparation method of fluid loss additive of water-base drilling fluid, filtrate reducing method therein includes: polymerization monomer is dissolved in water by (1), and regulation pH value is 8～12；(2) in above-mentioned solution, add radical polymerization initiator, under stirring, react 1～5 hour between 30 DEG C～80 DEG C；(3) aqueous solutions of polymers step (2) obtained processes 1～10 hour between 50 DEG C～200 DEG C；(4) aqueous solutions of polymers that step (3) obtains is joined in water-base drilling fluid.The method using the present invention, both can ensure that the effect of filtrate reducing, had not interfered with again the rheological parameters of drilling fluid system.
Description
Technical field
The present invention relates to filtrate reducing method and the preparation method of fluid loss additive of oil field water-base drilling fluid.
Background technology
In drilling process, due to the existence of differential pressure action, the moisture in drilling fluid is inevitably by borehole wall leak-off
In stratum.On the one hand if filter loss is excessive, borehole well instability can be caused, on the other hand can cause cause to rotary drilling bigger
Moment of torsion, is easily caused differential sticking.Control filter loss is one of important performance of drilling fluid, can control by adding fluid loss additive
The filter loss of drilling fluid.Fluid loss additive can be divided into granular materials, natural polymer and modified product thereof and synthetic polymer three class,
Synthetic polymer therein can be divided into addition polymer and polycondensation polymer two class.Addition polymer fluid loss additive is by containing not
The monomer of saturated double bond is polymerized, it is common that be polymerized by two or more monomers.The monomer of addition polymer mainly has:
1. anionic monomer: acrylic acid (AA), 2-acrylamide-2-methylpro panesulfonic acid (AMPS), itaconic acid (IA), methacrylic acid
(MAA), to styrene propane sulfonic acid etc.；2. cationic monomer: 3-Methacrylamide oxygen hydroxypropyltrimonium chloride (MPTMA),
Dimethyl diallyl ammonium chloride (DMDAAC), MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride (MOTAC), acrylamido second
Base alkyl dimethyl ammonium chloride (AEDMAC), 2-hydroxy-3-methyl acryloxypropyl trimethyl ammonium chloride (HMOPTA) etc.；The most non-from
Sub-monomer: maleic anhydride, acrylamide (AM), N,N-DMAA (DMAM), N, N-acrylamide
(DEAM), NVP (NVP) etc..
Borehole well instability always affect the principal element that drilling well is smoothed out, particularly faced by more than well depth 4500m deep
Well and the well depth ultradeep well more than 6000m.In deep-well and ultradeep well, well temperature, up to more than 150 DEG C, is bored in addition and is met saline bed,
Make drilling fluid how to meet drilling well primary demand in the case of high temperature and high salinity and become a major issue.Synthetic polymer
Fluid loss additive can require to carry out MOLECULE DESIGN according to temperature etc., it is possible to better meets gentle salt tolerant resistance to fluid loss additive and wants
Ask.
The molecular weight increasing polymer is conducive to improving the filtrate loss controllability of fluid loss additive, but the highest meeting of molecular weight causes
Fluid loss additive viscosity is excessive, causes and adds agent difficulty, and after adding fluid loss additive, can significantly change the rheology of drilling fluid system
Parameter, and then affect the performance of drilling fluid, now need the rheological parameters adding other additive to regulate and control drilling fluid system.
In prior art, the research to fluid loss additive is a lot, and preparation method is the abundantest, but still needs to ensureing fluid loss additive
On the premise of performance, solve the thickening problem of fluid loss additive further.
Summary of the invention
The invention provides a kind of filtrate reducing method of water-base drilling fluid, the method both can ensure that the effect of filtrate reducing,
Do not interfere with again the rheological parameters of drilling fluid system.
The invention provides a kind of filtrate reducing method of water-base drilling fluid, including:
(1) being dissolved in water by polymerization monomer, regulation pH value is 8～12；
(2) in above-mentioned solution, add radical polymerization initiator, under stirring, between 30 DEG C～80 DEG C, react 1～5 little
Time；
(3) aqueous solutions of polymers step (2) obtained processes 1～10 hour between 50 DEG C～200 DEG C；
(4) aqueous solutions of polymers that step (3) obtains is joined in water-base drilling fluid；
Described polymerization monomer at least two kinds in following monomer, at least one of which monomer contains amide groups,
At least another kind of monomer contains carboxyl, anhydride group or sulfonic group: acrylic acid, 2-acrylamide-2-methylpro panesulfonic acid, to benzene
Ethylene propylene sulfonic acid, itaconic acid, methacrylic acid, 3-Methacrylamide oxygen hydroxypropyltrimonium chloride, dimethyl diallyl
Ammonium chloride, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, acrylamidoethyl alkyl dimethyl ammonium chloride, 2-hydroxy-3-methyl
Acryloxypropyl trimethyl ammonium chloride, acrylamide, N,N-DMAA, N, N-acrylamide and N-second
Thiazolinyl-2-pyrrolidinyl.
In step (1), on the basis of the gross mass being polymerized monomer and water, the consumption of polymerization monomer is 20～40%.
In step (1), polymerization monomer is preferably 2-acrylamide-2-methylpro panesulfonic acid, acrylamide and to styrene
Propane sulfonic acid, the mass ratio of various monomers is 1: 2～4: 2～4.
In step (1), polymerization monomer is preferably acrylic acid, acrylamide and to styrene propane sulfonic acid, the matter of various monomers
Amount ratio is 1: 2～4: 1～3.
In step (1), polymerization monomer is preferably 2-acrylamide-2-methylpro panesulfonic acid, acrylamide and acrylic acid, and four
The mass ratio planting monomer is 1: 2～4: 1～3.
In step (1), polymerization monomer is preferably 2-acrylamide-2-methylpro panesulfonic acid, acrylamide and N, N-diformazan
Base acrylamide, the mass ratio of various monomers is 1: 1～3: 1～3.
In step (1), polymerization monomer is preferably 2-acrylamide-2-methylpro panesulfonic acid, acrylamide, N, N-dimethyl
Acrylamide and acrylic acid, the mass ratio of various monomers is 2: 1～2: 2～4: 2～4.
In step (1), it is possible to use NaOH, KOH or CaOH2Regulate pH value.
In step (2), described radical polymerization initiator includes per-compound initiator, azo initiator and oxidation
Reduction initiator, is preferably used redox initiator.Redox initiator is to utilize the electricity between Oxidizing and Reducing Agents
The radical polymerization that son transfer is generated.Described redox initiator includes benzoyl peroxide/sucrose, uncle
Butylhydroperoxide/sodium pyrosulfite, benzoyl peroxide/DMA.Ammonium persulfate ./sodium sulfite, over cure
Acid potassium/sodium sulfite, sodium sulfite and sodium peroxydisulfate, hydrogen peroxide/tartaric acid, Ammonium persulfate ./ferrous sulfate, peroxidating
Hydrogen/ferrous sulfate, benzoyl peroxide //N, N-diethylaniline, benzoyl peroxide/ferrous pyrophosphate, potassium peroxydisulfate/nitre
Acid silver, persulfate/mercaptan, isopropyl benzene hydroperoxide/ferrous chloride, potassium peroxydisulfate/ferrous chloride, hydrogen peroxide/protochloride
Ferrum and isopropyl benzene hydroperoxide/tetra-aziridine, be preferably used sodium sulfite/Ammonium persulfate., sodium sulfite/sodium peroxydisulfate
Or sodium sulfite/potassium peroxydisulfate.
In the case of You Xuan, in step (3) processing procedure, do not use stirring or use the alr mode without shearing.
In the case of You Xuan, in step (3), in sealed states aqueous solutions of polymers is processed.
A kind of preparation method of fluid loss additive, including: aqueous solutions of polymers is processed between 50 DEG C～200 DEG C 1～10
Hour；Described polymer is the polymer for water-base drilling fluid fluid loss additive.
In described aqueous solutions of polymers, the mass percentage concentration of polymer is preferably 20～40%.
Described polymer contains two kinds of groups of A and B, and A is amide groups, and B is the one in carboxyl, anhydride group and sulfonic group
Or it is several；The polymerization monomer of described polymer be selected from acrylic acid, 2-acrylamide-2-methylpro panesulfonic acid, to styrene
Propane sulfonic acid, itaconic acid, methacrylic acid, 3-Methacrylamide oxygen hydroxypropyltrimonium chloride, dimethyl diallyl chlorination
Ammonium, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, acrylamidoethyl alkyl dimethyl ammonium chloride, 2-hydroxy-3-methyl propylene
Monomethacryloxypropyl trimethyl ammonium chloride, acrylamide, N,N-DMAA, N, N-acrylamide and N-ethylene
At least two in base-2-pyrrolidinyl.
In the case of You Xuan, when aqueous solutions of polymers is processed, do not use stirring or use the stirring without shearing
Mode.
In the case of You Xuan, in sealed states aqueous solutions of polymers is processed.
The number-average molecular weight of described polymer preferably between 100,000～2,000,000, more preferably 500,000～1,200,000 it
Between.
Described polymer is 2-acrylamide-2-methylpro panesulfonic acid, acrylamide and is total to styrene propane sulfonic acid
Polymers, the mass ratio of three kinds of monomers is 1: 2～4: 2～4.
Described polymer is acrylic acid, acrylamide and the copolymer to styrene propane sulfonic acid, the quality of three kinds of monomers
Ratio is 1: 2～4: 1～3.
Described polymer is 2-acrylamide-2-methylpro panesulfonic acid, acrylamide and acrylic acid copolymer, three kinds
The mass ratio of monomer is 1: 2～4: 1～3.
Described polymer is 2-acrylamide-2-methylpro panesulfonic acid, acrylamide and N,N-DMAA
Copolymer, the mass ratio of three kinds of monomers is 1: 1～3: 1～3.
Described polymer be 2-acrylamide-2-methylpro panesulfonic acid, acrylamide, N,N-DMAA and
Acrylic acid copolymer, the mass ratio of four kinds of monomers is 2: 1～2: 2～4: 2～4.
Described aqueous solutions of polymers can use following methods to prepare:
(1) being dissolved in water by monomer, regulation pH value is 8～12；
(2) in above-mentioned solution, add radical polymerization initiator, under stirring, between 30 DEG C～80 DEG C, react 1～5 little
Time.
In step (1), NaOH, KOH or CaOH can be used2Regulate pH value.
In step (2), described radical polymerization initiator includes per-compound initiator, azo initiator and oxidation
Reduction initiator, is preferably used redox initiator.Redox initiator is to utilize the electricity between Oxidizing and Reducing Agents
The radical polymerization that son transfer is generated.Described redox initiator includes benzoyl peroxide/sucrose, uncle
Butylhydroperoxide/sodium pyrosulfite, benzoyl peroxide/DMA.Ammonium persulfate ./sodium sulfite, over cure
Acid potassium/sodium sulfite, sodium sulfite and sodium peroxydisulfate, hydrogen peroxide/tartaric acid, Ammonium persulfate ./ferrous sulfate, peroxidating
Hydrogen/ferrous sulfate, benzoyl peroxide //N, N-diethylaniline, benzoyl peroxide/ferrous pyrophosphate, potassium peroxydisulfate/nitre
Acid silver, persulfate/mercaptan, isopropyl benzene hydroperoxide/ferrous chloride, potassium peroxydisulfate/ferrous chloride, hydrogen peroxide/protochloride
Ferrum and isopropyl benzene hydroperoxide/tetra-aziridine, be preferably used sodium sulfite/Ammonium persulfate., sodium sulfite/sodium peroxydisulfate
Or sodium sulfite/potassium peroxydisulfate.
Present invention also offers the fluid loss additive prepared by said method.
The method using the present invention, both can ensure that the effect of filtrate reducing, had not interfered with again the rheology of drilling fluid system
Parameter.
Detailed description of the invention
Further illustrate the present invention by the following examples.
Embodiment 1
Take 2-acrylamide-2-methyl propane sulfonic (AMPS) 50.0g, acrylamide (AM) 100.0g and to styrene the third sulphur
Acid (SSS) 100.0g is dissolved in 400.0g water, with NaOH regulation system pH for 8.0.Gradually add sodium sulfite to system
2.0g, sodium peroxydisulfate 2.0g, constant temperature 35 DEG C, react 3 hours, after reaction terminates, sample analysis, evaluation.Products obtained therefrom is put into
Being sealed in constant temperature 2 hours at 120 DEG C in reactor, process is down to room temperature, sample analysis, evaluation after terminating naturally.Heat treated
After sample, after placing one week, sample analysis.
Analysis method: it is 0.1% that aqueous solutions of polymers is diluted to mass fraction, then uses flow graph or viscosity measurement
Examination solution viscosity.
Filtrate loss controllability evaluation methodology: use test procedure for drilling fluids GB/T 16783.1-2006 to evaluate filtrate reducing effect；
On the basis of aqueous solutions of polymers, polymer volume is 0.6%.
Analyze and evaluation result is shown in Table 1.
Table 1
| Non-heat treated | Heat treated | Heat treated also places January | |
| Aqueous polymer solution viscosity/mPas | 9.8 | 3.3 | 3.1 |
| Polymeric fluid loss amount (room temperature)/mL | 13.8 | 14.0 | 14.0 |
| Polymeric fluid loss amount (180 DEG C)/mL | 16.7 | 17.0 | 17.0 |
Compared with non-heat treated, heat treated post-consumer polymer solution viscosity reduces by 66%, and filtrate loss controllability is without substantially
Change, room temperature and 180 DEG C of filter losses are the most relatively low, have obvious filtrate reducing effect, the sample after heat treated, place January
After, its viscosity be with January before close, without obvious viscosity recovery, filtrate loss controllability keeps constant.
Embodiment 2
Take acryllic acid (AA) 50.0g, acrylamide (AM) 100.0g and styrene propane sulfonic acid (SSS) 80.0g is dissolved
In 400.0g water, with NaOH regulation system pH for 9.0.Gradually add sodium sulfite 1.8g, sodium peroxydisulfate 1.8g to system,
Constant temperature 35 DEG C, reacts 4 hours, after reaction terminates, and sample analysis, evaluation.Products obtained therefrom is put in reactor and be sealed in 130 DEG C
Lower constant temperature 2 hours, process is down to room temperature, sample analysis, evaluation after terminating naturally.Sample after heat treated, after placing one week,
Sample analysis.
Analysis method: it is 0.1% that aqueous solutions of polymers is diluted to mass fraction, then uses flow graph or viscosity measurement
Examination solution viscosity.
Filtrate loss controllability evaluation methodology: use test procedure for drilling fluids GB/T 16783.1-2006 to evaluate filtrate reducing effect；
On the basis of aqueous solutions of polymers, polymer volume is 0.6%.
Analyze and evaluation result is shown in Table 1.
Table 2
| Non-heat treated | Heat treated | Heat treated also places January | |
| Aqueous polymer solution viscosity/mPas | 10.0 | 3.0 | 3.0 |
| Polymeric fluid loss amount (room temperature)/mL | 14.2 | 14.5 | 14.5 |
| Polymeric fluid loss amount (180 DEG C)/mL | 17.4 | 17.0 | 17.0 |
Compared with non-heat treated, heat treated post-consumer polymer solution viscosity reduces by 70%, and filtrate loss controllability is without substantially
Change, room temperature and 180 DEG C of filter losses are the most relatively low, have obvious filtrate reducing effect, the sample after heat treated, place January
After, its viscosity be with January before close, without obvious viscosity recovery, filtrate loss controllability keeps constant.
Embodiment 3
Take 2-acrylamide-2-methyl propane sulfonic (AMPS) 50.0g, acrylamide (AM) 80.0g and acrylic acid (AA)
100.0g is dissolved in 400.0g water, with NaOH regulation system pH for 8.5.Gradually add sodium sulfite 2.0g, mistake to system
Sodium sulfate 2.0g, constant temperature 35 DEG C, reacts 3 hours.After reaction terminates, sample analysis, evaluation.Products obtained therefrom is put in reactor
It is sealed in constant temperature at 110 DEG C and after 2 hours, obtains target product.
Table 3
| Non-heat treated | Heat treated | Heat treated also places January | |
| Aqueous polymer solution viscosity/mPas | 10.0 | 5.7 | 6.0 |
| Polymeric fluid loss amount (room temperature)/mL | 14.0 | 14.5 | 14.5 |
| Polymeric fluid loss amount (180 DEG C)/mL | 17.0 | 17.2 | 17.5 |
Compared with non-heat treated, heat treated post-consumer polymer solution viscosity reduces by 43%, and filtrate loss controllability is without substantially
Change, room temperature and 180 DEG C of filter losses are the most relatively low, have obvious filtrate reducing effect, the sample after heat treated, place January
After, its viscosity be with January before close, without obvious viscosity recovery, filtrate loss controllability keeps constant.
Embodiment 4
Take 2-acrylamide-2-methyl propane sulfonic (AMPS) 50.0g, acrylamide (AM) 50.0g, N, N-dimethyl double third
Acrylamide (DMAM) 50.0g and acrylic acid (AA) 80.0g is dissolved in 400.0g water, with NaOH regulation system pH for 10.0.By
Gradually add sodium sulfite 1.8g, sodium peroxydisulfate 1.8g, constant temperature 40 DEG C to system, react 5 hours.After reaction terminates, sampling point
Analysis, evaluation.Products obtained therefrom is put in reactor be sealed at 120 DEG C constant temperature after 2 hours target product.
Table 4
| Non-heat treated | Heat treated | Heat treated also places January | |
| Aqueous polymer solution viscosity/mPas | 9.8 | 3.5 | 3.3 |
| Polymeric fluid loss amount (room temperature)/mL | 13.8 | 14.0 | 14.5 |
| Polymeric fluid loss amount (180 DEG C)/mL | 17.2 | 17.8 | 17.5 |
Compared with non-heat treated, heat treated post-consumer polymer solution viscosity reduces by 64%, and filtrate loss controllability is without substantially
Change, room temperature and 180 DEG C of filter losses are the most relatively low, have obvious filtrate reducing effect, the sample after heat treated, place January
After, its viscosity be with January before close, without obvious viscosity recovery, filtrate loss controllability keeps constant.
Embodiment 5
Take 2-acrylamide-2-methyl propane sulfonic (AMPS) 50.0g, acrylamide (AM) 40.0g, N, N-diethyl double third
Acrylamide (DEAM) 60.0g and acrylic acid (AA) 100.0g is dissolved in 400.0g water, with NaOH regulation system pH for 10.0.By
Gradually add sodium sulfite 1.8g, sodium peroxydisulfate 1.8g, constant temperature 40 DEG C to system, react 3 hours.After reaction terminates, sampling point
Analysis, evaluation.Products obtained therefrom is put in reactor be sealed at 200 DEG C constant temperature after 2 hours target product.
Table 5
| Non-heat treated | Heat treated | Heat treated also places January | |
| Aqueous polymer solution viscosity/mPas | 10.0 | 1.6 | 1.8 |
| Polymeric fluid loss amount (room temperature)/mL | 14.0 | 15.0 | 15.0 |
| Polymeric fluid loss amount (180 DEG C)/mL | 17.0 | 18.0 | 18.2 |
Compared with non-heat treated, heat treated post-consumer polymer solution viscosity is greatly lowered 84%, filtrate loss controllability
The most relatively low without significant change, room temperature and 180 DEG C of filter losses, there is obvious filtrate reducing effect, the sample after heat treated, place
After January, its viscosity be with January before close, without obvious viscosity recovery, filtrate loss controllability keeps constant.
Claims (20)
1. a filtrate reducing method for water-base drilling fluid, including:
(1) being dissolved in water by polymerization monomer, regulation pH value is 8～12；
(2) in above-mentioned solution, add radical polymerization initiator, under stirring, react 1～5 hour between 30 DEG C～80 DEG C；
(3) aqueous solutions of polymers step (2) obtained processes 1～10 hour between 50 DEG C～200 DEG C；
(4) aqueous solutions of polymers that step (3) obtains is joined in water-base drilling fluid；
Described polymerization monomer at least two kinds in following monomer, at least one of which monomer contains amide groups, at least
Have another kind of monomer to contain carboxyl, anhydride group or sulfonic group: acrylic acid, 2-acrylamide-2-methylpro panesulfonic acid, to styrene
Propane sulfonic acid, itaconic acid, methacrylic acid, 3-Methacrylamide oxygen hydroxypropyltrimonium chloride, dimethyl diallyl chlorination
Ammonium, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, acrylamidoethyl alkyl dimethyl ammonium chloride, 2-hydroxy-3-methyl propylene
Monomethacryloxypropyl trimethyl ammonium chloride, acrylamide, N,N-DMAA, N, N-acrylamide；
In step (3) processing procedure, do not use stirring or use the alr mode without shearing, and in sealed states to polymerization
Thing aqueous solution processes.
The most in accordance with the method for claim 1, it is characterised in that in step (1), be polymerized monomer and water gross mass as base
Standard, the consumption of polymerization monomer is 20～40%.
The most in accordance with the method for claim 1, it is characterised in that in step (1), polymerization monomer is 2-acrylamido-2-
Methyl propane sulfonic acid, acrylamide and to styrene propane sulfonic acid, the mass ratio of three kinds of monomers is 1: 2～4: 2～4.
The most in accordance with the method for claim 1, it is characterised in that in step (1), polymerization monomer is acrylic acid, acrylamide
With to styrene propane sulfonic acid, the mass ratio of three kinds of monomers is 1: 2～4: 1～3.
The most in accordance with the method for claim 1, it is characterised in that in step (1), polymerization monomer is 2-acrylamido-2-
Methyl propane sulfonic acid, acrylamide and acrylic acid, the mass ratio of three kinds of monomers is 1: 2～4: 1～3.
The most in accordance with the method for claim 1, it is characterised in that in step (1), polymerization monomer is 2-acrylamido-2-
Methyl propane sulfonic acid, acrylamide and N,N-DMAA, the mass ratio of three kinds of monomers is 1: 1～3: 1～3.
The most in accordance with the method for claim 1, it is characterised in that in step (1), polymerization monomer is 2-acrylamido-2-
Methyl propane sulfonic acid, acrylamide, N,N-DMAA and acrylic acid, the mass ratio of various monomers is 2: 1～2: 2～4:
2～4.
The most in accordance with the method for claim 1, it is characterised in that in step (2), described radical polymerization initiator is sub-
Sodium bisulfate/Ammonium persulfate., sodium sulfite/sodium peroxydisulfate or sodium sulfite/potassium peroxydisulfate.
9. a preparation method for fluid loss additive, including: aqueous solutions of polymers is processed between 50 DEG C～200 DEG C 1～10 little
Time；Described polymer is the polymer for water-base drilling fluid fluid loss additive；Described polymer contains two kinds of groups of A and B,
A is amide groups, and B is one or more in sulfonic group, carboxyl and anhydride group；The polymerization monomer of described polymer is selected from propylene
Acid, 2-acrylamide-2-methylpro panesulfonic acid, to styrene propane sulfonic acid, itaconic acid, methacrylic acid, 3-Methacrylamide
Oxygen hydroxypropyltrimonium chloride, dimethyl diallyl ammonium chloride, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, acrylamide
Base ethyl alkyl dimethyl ammonium chloride, 2-hydroxy-3-methyl acryloxypropyl trimethyl ammonium chloride, acrylamide, N, N-dimethyl
Acrylamide, N, at least two in N-acrylamide；
When aqueous solutions of polymers is processed, do not use stirring or use the alr mode without shearing, and at sealing state
Under aqueous solutions of polymers is processed.
The most in accordance with the method for claim 9, it is characterised in that in described aqueous solutions of polymers, the quality hundred of polymer
Point concentration is 20～40%.
11. in accordance with the method for claim 9, it is characterised in that the number-average molecular weight of described polymer is 100,000～200
Between ten thousand.
12. in accordance with the method for claim 11, it is characterised in that the number-average molecular weight of described polymer 500,000～
Between 1200000.
13. in accordance with the method for claim 9, it is characterised in that described polymer is 2-acrylamido-2-methyl-prop
Sulfonic acid, acrylamide and the copolymer to styrene propane sulfonic acid, the mass ratio of three kinds of monomers is 1: 2～4: 2～4.
14. in accordance with the method for claim 9, it is characterised in that described polymer is acrylic acid, acrylamide and to benzene
The copolymer of ethylene propylene sulfonic acid, the mass ratio of three kinds of monomers is 1: 2～4: 1～3.
15. in accordance with the method for claim 9, it is characterised in that described polymer is 2-acrylamido-2-methyl-prop
Sulfonic acid, acrylamide and acrylic acid copolymer, the mass ratio of three kinds of monomers is 1: 2～4: 1～3.
16. in accordance with the method for claim 9, it is characterised in that described polymer is 2-acrylamido-2-methyl-prop
The copolymer of sulfonic acid, acrylamide and N,N-DMAA, the mass ratio of three kinds of monomers is 1: 1～3: 1～3.
17. in accordance with the method for claim 9, it is characterised in that described polymer is 2-acrylamido-2-methyl-prop
Sulfonic acid, acrylamide, N,N-DMAA and acrylic acid copolymer, the mass ratio of four kinds of monomers be 2: 1～2: 2～
4: 2～4.
18. in accordance with the method for claim 9, it is characterised in that described aqueous solutions of polymers uses following methods to prepare:
(1) being dissolved in water by monomer, regulation pH value is 8～12；
(2) in above-mentioned solution, add radical polymerization initiator, under stirring, react 1～5 hour between 30 DEG C～80 DEG C.
19. in accordance with the method for claim 18, it is characterised in that in step (2), and described initiator is bisulfite
Sodium/Ammonium persulfate., sodium sulfite/sodium peroxydisulfate or sodium sulfite/potassium peroxydisulfate.
20. fluid loss additives prepared according to method described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219904.4A CN103509535B (en) | 2012-06-29 | 2012-06-29 | The filtrate reducing method of water-base drilling fluid and the preparation method of fluid loss additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219904.4A CN103509535B (en) | 2012-06-29 | 2012-06-29 | The filtrate reducing method of water-base drilling fluid and the preparation method of fluid loss additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103509535A CN103509535A (en) | 2014-01-15 |
| CN103509535B true CN103509535B (en) | 2016-12-21 |
Family
ID=49892974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210219904.4A Active CN103509535B (en) | 2012-06-29 | 2012-06-29 | The filtrate reducing method of water-base drilling fluid and the preparation method of fluid loss additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103509535B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926992B (en) * | 2014-03-19 | 2017-09-29 | 中国石油化工股份有限公司 | A kind of synthetic method of drilling fluid amphoteric ion copolymer |
| CN104926989B (en) * | 2014-03-20 | 2017-05-17 | 中国石油化工股份有限公司 | Acrylamide type polymer, preparation method and applications thereof |
| CN106146732B (en) * | 2015-04-15 | 2018-06-19 | 中国石油化工股份有限公司 | A kind of cement filter loss-reducing agent for oil well and its preparation method and application |
| CN104962250A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Treating agent used for high-performance copolymer drilling fluid |
| CN105199057B (en) * | 2015-09-16 | 2017-11-17 | 西安石油大学 | A kind of preparation method of multi-functional high temperature resistant drilling fluids inorganic agent |
| CN105219511A (en) * | 2015-10-21 | 2016-01-06 | 东莞市明洁隧道建设材料有限公司 | A kind of dregs viscosity-depression agent and preparation method thereof |
| CN105504136A (en) * | 2015-12-31 | 2016-04-20 | 上海三瑞高分子材料股份有限公司 | Quadripolymer and preparation method |
| CN105754564B (en) * | 2016-04-22 | 2020-03-10 | 中国石油集团川庆钻探工程有限公司 | Preparation method of filtrate reducer for drilling fluid |
| CN106046251B (en) * | 2016-05-26 | 2018-06-29 | 西南石油大学 | Water-base drilling fluid temperature resistance salt tolerant polymer filtrate reducer and preparation method thereof |
| CN106008803B (en) * | 2016-05-26 | 2018-08-03 | 中国石油集团渤海钻探工程有限公司 | A kind of high temperature resistant cross-linked acid thickening agent and preparation method thereof |
| CN107814870B (en) * | 2017-09-27 | 2020-11-03 | 浙江海洋大学 | Spherical polymer treating agent for high-temperature-resistant drilling fluid and preparation method thereof |
| CN108641683B (en) * | 2018-03-30 | 2019-05-24 | 中国石油大学(华东) | A kind of high salinity high-density water-based drilling fluid resistant to high temperatures and its application |
| CN108587580A (en) * | 2018-04-14 | 2018-09-28 | 石家庄华莱鼎盛科技有限公司 | Drilling fluid high-temperature salt-resistant fluid loss additive modified gum resin and preparation method thereof |
| CN110452670A (en) * | 2018-12-25 | 2019-11-15 | 北京石大博诚科技有限公司 | Water-base drilling fluid fluid loss additive and preparation method thereof |
| CN112521044B (en) * | 2020-12-04 | 2022-03-11 | 中国石油集团工程技术研究院有限公司 | Fluid loss agent suitable for aluminate cement slurry and preparation method thereof |
| CN112794936A (en) * | 2021-01-21 | 2021-05-14 | 西南石油大学 | Polymer filtrate reducer and drilling fluid |
| CN116426257A (en) * | 2022-11-18 | 2023-07-14 | 中国石油天然气集团有限公司 | Fluid loss agent and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4989673A (en) * | 1989-07-14 | 1991-02-05 | Marathon Oil Company | Lost circulation fluid for oil field drilling operations |
| CN101397491A (en) * | 2008-10-27 | 2009-04-01 | 中国科学院长春应用化学研究所 | Multi-element co-polymerization oil well cement fluid loss additive and preparation method thereof |
| CN101928556A (en) * | 2010-08-02 | 2010-12-29 | 西南石油大学 | Five-membered copolymer fluid loss agent and preparation method thereof |
| CN102433108A (en) * | 2010-09-29 | 2012-05-02 | 中国石油化工股份有限公司 | Temperature-resistance salt-resistance filtrate reducer for drilling fluid and preparation method thereof |
| CN102453470A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工集团公司 | Copolymer fluid loss agent with resistance against temperature and salt for drilling liquid and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008010795A1 (en) * | 2008-02-23 | 2009-08-27 | Basf Construction Polymers Gmbh | Additive for cementing boreholes |
-
2012
- 2012-06-29 CN CN201210219904.4A patent/CN103509535B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4989673A (en) * | 1989-07-14 | 1991-02-05 | Marathon Oil Company | Lost circulation fluid for oil field drilling operations |
| CN101397491A (en) * | 2008-10-27 | 2009-04-01 | 中国科学院长春应用化学研究所 | Multi-element co-polymerization oil well cement fluid loss additive and preparation method thereof |
| CN101928556A (en) * | 2010-08-02 | 2010-12-29 | 西南石油大学 | Five-membered copolymer fluid loss agent and preparation method thereof |
| CN102433108A (en) * | 2010-09-29 | 2012-05-02 | 中国石油化工股份有限公司 | Temperature-resistance salt-resistance filtrate reducer for drilling fluid and preparation method thereof |
| CN102453470A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工集团公司 | Copolymer fluid loss agent with resistance against temperature and salt for drilling liquid and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| SAMPS/NVP/AM/SAA四元共聚物的制备与表征;武玉民等;《青岛科技大学学报(自然科学版)》;20030830;第24卷(第04期);第283-286页 * |
| 聚合物P(AMPS-AM-DMAM-NVP)的制备及降滤失性能;高磊等;《高分子材料科学与工程》;20110430;第27卷(第04期);第147-150页 * |
| 降滤失剂AMPS/AM/AA、AMPS/AM/NaHm共聚物和磺甲基酚醛树脂的合成研究;王庆;《中国优秀硕士学位论文全文数据库工程科技I辑》;20090515(第5期);第24页第3.3.2.2节保温熟化温度的选择，第26页第1段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103509535A (en) | 2014-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103509535B (en) | The filtrate reducing method of water-base drilling fluid and the preparation method of fluid loss additive | |
| AU2018238041B2 (en) | Fracturing fluid comprising a (co)polymer of a hydrated crystalline form of 2-acrylamido-2-methylpropane sulphonic acid and hydraulic fracturing method | |
| CN103059828B (en) | For viscosifying agent and the synthetic method thereof of aqueous fracturing fluid | |
| CN104448128B (en) | Polymer mobility control agent suitable for high-temperature and high-salinity harsh reservoir and preparation method of polymer mobility control agent | |
| CN100432180C (en) | Densifier for aqueous breakdown fluid and its production method | |
| CN102181010B (en) | Preparation method of high-temperature-resistant high-salt polymer oil-replacement agent | |
| CN104388063B (en) | Micro-crosslinked polymer fluid loss additive for drilling fluid and preparation method thereof | |
| CN102115514A (en) | Preparation method of acid liquor thickening agent | |
| CN101302266B (en) | Water-soluble micro-crosslinked copolymer, preparation and use thereof | |
| CN104449636B (en) | Oil displacement agent of recovery ratio and preparation method thereof is improved suitable for high temperature and high salt harshness oil reservoir | |
| CN111285964B (en) | Temperature-resistant and salt-resistant micro-crosslinked fluid loss additive for drilling fluid and preparation method thereof | |
| CN102070754A (en) | Novel anionic thermal tackifying water-soluble polymer | |
| CN102093505B (en) | Preparation method of star polymer | |
| CN103194202B (en) | Adsorptive acid liquor retarding admixture and preparation method thereof | |
| CN112175153B (en) | High-molecular polymer and preparation method and application thereof | |
| CN102220112A (en) | Inorganic-organic salt-resisting and high temperature-resisting polymer fluid loss additive for drilling fluid | |
| CN101220263B (en) | Water-based fracturing fluid gelatinizer and producing method thereof | |
| Xie et al. | Novel thermo-associating polymer/silica nanocomposite as a temperature-resistant rheology modifier for bentonite-free water-based drilling fluids | |
| CN103642483A (en) | High temperature gelatinizing agent used in acidizing and fracturing and synthetic method thereof | |
| CN105017475A (en) | Tackifying and filtrate reducing agent for low soil phase and high density drilling fluid, and preparation method thereof | |
| CN104140790B (en) | A kind of oil field viscosity increaser of water-soluble polymer and preparation method thereof | |
| CN104292398A (en) | Temperature-resistant salt-resistant fluid loss additive for drilling fluid and preparation method thereof | |
| CN102391849B (en) | Imidazole polymer oil displacement agent and synthesizing method thereof | |
| CN103710016A (en) | Dry-powder structural fluid drag reducer and preparation method thereof | |
| CN104152130B (en) | AM/NaAA/NIDA hydrophobic associated polymer oil displacement agent and synthetic method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |