CN104277804A - AM-DAAM-AMPS ternary polymer gel particle drive-adjusting reagent and synthesis method thereof - Google Patents

AM-DAAM-AMPS ternary polymer gel particle drive-adjusting reagent and synthesis method thereof Download PDF

Info

Publication number
CN104277804A
CN104277804A CN201410572311.5A CN201410572311A CN104277804A CN 104277804 A CN104277804 A CN 104277804A CN 201410572311 A CN201410572311 A CN 201410572311A CN 104277804 A CN104277804 A CN 104277804A
Authority
CN
China
Prior art keywords
daam
amps
total mass
monomers
monomer
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.)
Pending
Application number
CN201410572311.5A
Other languages
Chinese (zh)
Inventor
赖南君
黄攀
叶仲斌
王洪江
吴涛
刘凡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwest Petroleum University
Original Assignee
Southwest Petroleum University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Southwest Petroleum University filed Critical Southwest Petroleum University
Priority to CN201410572311.5A priority Critical patent/CN104277804A/en
Publication of CN104277804A publication Critical patent/CN104277804A/en
Pending legal-status Critical Current

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
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504—Compositions based on water or polar solvents
    • C09K8/506—Compositions based on water or polar solvents containing organic compounds
    • C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
    • 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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (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 invention relates to an AM-DAAM-AMPS ternary polymer gel particle drive-adjusting reagent and a synthesis method thereof. According to the technical scheme, the polymer drive-adjusting reagent takes acrylamide (AM), diacetone-acrylamide (DAAM), 2-acrylamide-2-methyl-2-propene-1-sulfonic acid (AMPS) as monomers, and the optimal added amount for synthesis is as follows: concentration of the monomers is 20% (percent accounting for the total mass of reactants), and monomer ratio of AM to DAAM to AMPS is 7:1:2 (mass ratio); the added amount of a crosslinking agent is 0.07% (percent accounting for the total mass of the monomers); and the added amount of an initiating agent is 0.4% (percent accounting for the total mass of the monomers). The synthesis method of the AM-DAAM-AMPS ternary polymer gel particle drive-adjusting reagent comprises the following steps: weighing monomers AM, DAAM and AMPS according to the optimal added amounts, putting the monomers into a wide-mouth bottle, adding a certain amount of purified water to prepare a solution, titrating with a NaOH solution until pH value is 7, then adding an initiating agent and a crosslinking agent, and reacting in a water bath at the temperature of 50 DEG C for 3 hours; and finally washing with absolute ethyl alcohol, smashing, and drying, so that AM-DAAM-AMPS ternary polymer gel particles are obtained. The AM-DAAM-AMPS ternary polymer gel particles have good heat resistance, salt tolerance and plugging property and can be applied to oilfield flooding development as a drive-adjusting reagent.

Description

A kind of AM-DAAM-AMPS ter-polymers gel particle plugging agent and synthetic method thereof
Technical field
The present invention relates to technical field of oilfield recovery percent improvement, particularly a kind of AM-DAAM-AMPS ter-polymers gel particle plugging agent and synthetic method thereof.
Background technology
Along with carrying out of tertiary oil recovery, add the understanding to thick oil pay, the research that the deep using chemical reagent to carry out oil reservoir processes is more and more deep, and the various in-situ gelling system wherein based on polyacrylamide are most widely used.But it self deficiency limits its widespread use, mainly Gelation Conditions is very severe, shutoff degree is more weak, can not be applied to the reason such as macropore and Fractured Reservoir, temperature tolerance and salt resistance difference causes the plastic situation of underground to become more complicated, even causes the cross-linking system of part at all cannot plastic; Meanwhile, the block present oil field needing carry out transfer drive very major part is all the water injection well that experienced by long water filling and define macropore, but in-situ gelling system gel-strength is lower, plastic situation comparatively complexity makes it be not easy to play good deep flow direction-changing.For heat and salt resistance and real demand, develop Weak gel particle plugging technology.
Pre-Cross Linked Grain Profile Control technology is the oil reservoir deep profile controlling technology that 20 century 70s grow up, this technology is that profile modification system is prepared into a series of gel particle on ground, particle has the swollen property of certain body in water, to be detained in hole after injecting formation particles water-swelling, the passage of blocking hole, make deep rock tunneling, play the effect of profile control and water plugging.
But existing Weak gel particle plugging agent is difficult to the deep profile controlling being applicable to high temperature and high salinity oil reservoir.Therefore from its heat and salt resistance of raising, in conventional polyacrylamide gel particle plugging agent, introduce the heat and salt resistance organic monomer with huge side base, thus make that the long-chain of molecule is curling becomes more difficult, improve the heat and salt resistance of plugging agent.Ensure that plugging agent under high temperature, high salinity condition, can still have good intensity, to realize the water plugging and profile controlling of particle at high temperature and high salinity oil reservoir.
Summary of the invention
The object of the invention is to: in order to make polymer gel have good heat and salt resistance, can realize water plugging and profile controlling preferably, spy provides a kind of new polymers plugging agent and synthetic method thereof.
In order to reach above object, the present invention is by the following technical solutions: a kind of AM-DAAM-AMPS polymer gel particles plugging agent, this polymkeric substance plugging agent is made up of acrylamide (AM), diacetone-acryloamide(DAA) (DAAM), 2-acrylamide-2-methylpro panesulfonic acid (AMPS), its synthesis optimum add amount is: monomer concentration 20% (accounting for total reactant quality per-cent), monomer ratio AM:DAAM:AMPS=7:1:2 (mass ratio); Linking agent dosage is 0.07% (accounting for monomer total mass per-cent); Initiator dosage is 0.4% (accounting for monomer total mass per-cent).
The synthetic method of this new polymers plugging agent: take 14g AM, 2g DAAM respectively, 4g AMPS puts into wide-necked bottle, getting a certain amount of pure water, to be made into monomer total mass percentage concentration be the aqueous solution of 20%.Being titrated to pH by NaOH solution is 7, and then add initiator ammonium persulfate solution and sodium sulfite solution (mol ratio is 1:1), initiator add-on is 0.4% of monomer total mass; Add linking agent MBA, linking agent add-on is 0.07% of monomer total mass.Wide-necked bottle is put into 50 DEG C of water-baths and react 3h, finally obtain AM-DAAM-AMPS ter-polymers gel particle with absolute ethanol washing, pulverizing, oven dry.
The invention has the beneficial effects as follows: in (1) polymkeric substance, introduce function monomer DAAM (diacetone-acryloamide(DAA)), AMPS (2-acrylamide-2-methylpro panesulfonic acid), DAAM, AMPS are the monomers all with huge side base, molecular rigidity can be strengthened and increase sterically hindered, make molecule curling become difficulty, thus increase heat and salt resistance; (2) this polymkeric substance plugging agent shows good heat and salt resistance, has good profile control and water plugging ability, can be used for Water in Water Shutoff in Oil Field profile control.
Accompanying drawing explanation
Fig. 1 is the infrared spectrogram of polymer gel particles;
Fig. 2 is the performance of particle aging 30d under differing temps;
Fig. 3 is the performance of particle aging 30d under different salinity.
Embodiment
Embodiment 1: the synthesis of binary polymerization gel particle AM-DAAM-AMPS
Take 14g AM, 2g DAAM respectively, 4g AMPS puts into wide-necked bottle, getting a certain amount of pure water, to be made into monomer total mass percentage concentration be the aqueous solution of 20%.Being titrated to pH by NaOH solution is 7, and then add initiator ammonium persulfate solution and sodium sulfite solution (mol ratio is 1:1), initiator add-on is 0.4% of monomer total mass; Add linking agent MBA, linking agent add-on is 0.07% of monomer total mass.Wide-necked bottle is put into 50 DEG C of water-baths and react 3h, finally obtain AM-DAAM-AMPS ter-polymers gel particle with absolute ethanol washing, pulverizing, oven dry.
Embodiment 2:AM-DAAM-AMPS binary polymerization gelifying agent grain pattern characterizes
By the infrared spectrum of ter-polymers AM-DAAM-AMPS that goes out synthesized by embodiment 1 as shown in Figure 1; From figure, the stretching vibration peak of C-S is positioned at 629cm -1; Sulfonic charateristic avsorption band is positioned at 1041cm -1, 1208cm -1; Methyl absorption peak is positioned at 2925cm -1, 1350cm -1and 1425cm -1, and at 1350cm -1and 1425cm -1there is bifurcated in place, can identify that namely the gem-dimethyl that there is two kinds of chemical environments different exists DAAM and AMPS; 1642cm -1for the C=O absorption peak in AM; 1662cm -1for the C=O absorption peak of DAAM; 3220cm -1for the absorption peak of-NH, 3422cm -1for-NH 2absorption peak.
Embodiment 3:AM-DAAM-AMPS binary polymerization gelifying agent particle temperature tolerance is investigated
By the gel particle synthesized by embodiment 1 at 40 DEG C, 50 DEG C, 60 DEG C, 70 DEG C, at 80 DEG C, its Water absorption and gel-strength is measured soak aging 30d in 8000mg/L local water after, as shown in Figure 2, this Weak gel particle at 80 DEG C in normal saline solution aging 30d Water absorption reach 40, gel-strength is 0.14MPa, and toughness is better, there is the good temperature tolerance (measuring method of intensity and toughness: by the amendment sample after water suction, after screen filtration, firmly to deform during extruding and not broken, unclamp rear resilient, show that this amendment has good toughness.The device of a set of evaluation gel-strength has been made in laboratory by oneself, pour test gels particle into intermediate receptacle, turn on pump also promotes piston and applies pressure to it, and it is 120 object steel-wire screens by 1 layer of order number that piston promotes gel particle, with maximum by pressure (P by during screen cloth of gel max) characterize the intensity of pre-crosslinked gel particle, lower with).
Embodiment 4:AM-DAAM-AMPS binary polymerization gelifying agent particle salt resistance is investigated
By the gel particle synthesized by embodiment 1 at 80 DEG C, its Water absorption and gel-strength is measured after aging 30d under the salinity of 8000mg/L local water different multiples (0.5,1,5,10,12.5,18.75,25), as shown in Figure 3, this particle Water absorption under the salinity of 200000mg/L still reaches 28.4, gel-strength reaches 0.2MPa, and toughness is better, particle has good salt resistance.
Embodiment 5:AM-DAAM-AMPS polymeric gel agent particle seal-off effect is evaluated
Fill fill out sand tube (internal diameter 2.5cm, diameter 25cm) with the quartz sand of different meshes, when rate of water injection is 1.0ml/min, measures original permeability Kb, filter out several rate of permeation and be about 8 μm 2fill out sand tube, then inject gel particle solution (2000mg/L), close it and imports and exports and be placed in baking oven and be heated to 80 DEG C, carry out sequent water flooding with the waterflood injection rate of 1.0ml/min afterwards, measure stifled rear rate of permeation Ka.
The effects gel particle is 8 μm at original permeability 2during left and right, inject the shutoff situation under 0.3PV, 0.4PV, 0.5PV, 0.6PV, 0.7PV, the results are shown in Table 1.Result shows, along with the increase of gel particle injection rate, it is comparatively obvious that its sealing ratiod increases effect, and starting sealing ratiod increases soon, increases slower afterwards.Can know from experimental result, as long as inject the gel of 0.4PV, just can effectively change fill out sand tube rate of permeation, plugging effect is better.
Table 1 injects the fill out sand tube shutoff situation of different PV number
Embodiment 6:AM-DAAM-AMPS polymeric gel agent particle profile improvement rate is evaluated
The one dimension sand-packed model of low permeability and high permeability is filled and presented respectively with the quartz sand of different meshes, the rate of permeation of two sand-filling tube models is measured respectively with the rate of water injection of 1.0ml/min, filter out two (one group) fill out sand tube with certain permeability grade, repeat above-mentioned experiment, finishing screen selects three groups of sand-filling tube models that permeability grade is respectively 2,4.7,10.Two (one group) fill out sand tube are in parallel, measure stifled front fractional flow; Inject 0.4PV gel particle with the speed of 1.0ml/min again, put into baking oven for heating to 80 DEG C, then carry out sequent water flooding, measure the stifled rear fractional flow of each fill out sand tube, calculate its profile improvement rate.The profile improvement rate of 3 groups of different permeability grade fill out sand tube is as shown in table 2.Result shows, after injecting 0.4PV amendment, section improves respond well, and when permeability grade is respectively 2,4.7,10, profile improvement rate reaches 74.07%, 76.07%, 89.09% respectively.Show that permeability grade is larger, profile improvement rate is higher, and it is more remarkable that section improves effect simultaneously.
The section of the different differential fill out sand tube combination of table 2 improves situation

Claims (2)

1. an AM-DAAM-AMPS ter-polymers gel particle plugging agent and synthetic method thereof, it is characterized in that, this plugging agent is made up of acrylamide (AM), function monomer diacetone-acryloamide(DAA) (DAAM) and 2-acrylamide-2-methylpro panesulfonic acid (AMPS), its synthesis optimum add amount is: monomer concentration 20% (accounting for total reactant quality per-cent), monomer ratio AM:DAAM:AMPS=7:1:2 (mass ratio); Linking agent dosage is 0.07% (accounting for monomer total mass per-cent); Initiator dosage is 0.4% (accounting for monomer total mass per-cent).
2. a synthetic method for polymkeric substance plugging agent as claimed in claim 1, is characterized in that: take 14g AM, 2g DAAM respectively, 4g AMPS puts into wide-necked bottle, and getting a certain amount of pure water, to be made into monomer total mass percentage concentration be the aqueous solution of 20%; Being titrated to pH by NaOH solution is 7, and then add initiator ammonium persulfate solution and sodium sulfite solution (mol ratio is 1:1), initiator add-on is 0.4% of monomer total mass; Add linking agent MBA, linking agent add-on is 0.07% of monomer total mass; Wide-necked bottle is put into 50 DEG C of water-baths and react 3h, finally obtain AM-DAAM-AMPS ter-polymers gel particle with absolute ethanol washing, pulverizing, oven dry.
CN201410572311.5A 2014-10-23 2014-10-23 AM-DAAM-AMPS ternary polymer gel particle drive-adjusting reagent and synthesis method thereof Pending CN104277804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410572311.5A CN104277804A (en) 2014-10-23 2014-10-23 AM-DAAM-AMPS ternary polymer gel particle drive-adjusting reagent and synthesis method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410572311.5A CN104277804A (en) 2014-10-23 2014-10-23 AM-DAAM-AMPS ternary polymer gel particle drive-adjusting reagent and synthesis method thereof

Publications (1)

Publication Number Publication Date
CN104277804A true CN104277804A (en) 2015-01-14

Family

ID=52253160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410572311.5A Pending CN104277804A (en) 2014-10-23 2014-10-23 AM-DAAM-AMPS ternary polymer gel particle drive-adjusting reagent and synthesis method thereof

Country Status (1)

Country Link
CN (1) CN104277804A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104710568A (en) * 2015-04-01 2015-06-17 西安石油大学 Preparation method of retarding swelling anti-salt viscoelastic particle profile control agent
CN104961863A (en) * 2015-06-25 2015-10-07 武汉工程大学 Method for preparing polysaccharide biogum polymer gel profile control agent
CN105368422A (en) * 2015-12-09 2016-03-02 天津大港油田滨港集团博弘石油化工有限公司 Pre-crosslinking swell particle profile-control agent and preparation method thereof
CN105504645A (en) * 2015-12-19 2016-04-20 中国石油天然气股份有限公司 Terpolymer elastic granular profile control material and preparation method thereof
CN105860947A (en) * 2016-04-19 2016-08-17 中国石油天然气股份有限公司 Degradation-delayed high temperature-resistant high-salinity profile control agent and preparation method thereof
CN109232826A (en) * 2018-07-18 2019-01-18 西南石油大学 A kind of pre-crosslinked gel particle and preparation method thereof of POSS base hydridization
CN109762540A (en) * 2018-12-20 2019-05-17 中国石油集团川庆钻探工程有限公司 Supermolecule sealing agent and preparation method thereof
CN113265026A (en) * 2021-05-24 2021-08-17 西南石油大学 Water-swelling rubber flexible temporary plugging particle and preparation method thereof
CN113773821A (en) * 2020-06-10 2021-12-10 中国石油天然气股份有限公司 High-temperature blockage-regulating cleanup additive and preparation method and application thereof
CN114426638A (en) * 2020-10-14 2022-05-03 中国石油化工股份有限公司 Heavy oil reservoir high-permeability zone multistage plugging and conditioning agent and preparation method thereof
CN115093600A (en) * 2022-07-08 2022-09-23 中海石油(中国)有限公司 Micro-bubble/foam self-crosslinking self-adaptive gel deep profile control and flooding system and application thereof
CN115960309A (en) * 2023-02-13 2023-04-14 西南石油大学 Polymer sand stabilizer and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101429425A (en) * 2007-11-07 2009-05-13 中国石化集团中原石油勘探局钻井工程技术研究院 Process for preparing vinyl sulphonate polymer drilling fluid finishing agent
CN102268166A (en) * 2010-06-03 2011-12-07 北京化工大学 Preparation method of terpolymer for oilfield water plugging
CN102464761A (en) * 2010-11-17 2012-05-23 中国石油化工股份有限公司 Sulphonated heat resistant and salt tolerant copolymer for oil field and preparation method thereof
CN103396515A (en) * 2013-08-09 2013-11-20 西南石油大学 High temperature resistant modified starch filtration reducing agent and preparation method thereof
CN103602322A (en) * 2013-11-11 2014-02-26 西南石油大学 High-temperature-resistant nanocomposite filtrate loss reducer for drilling fluid and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101429425A (en) * 2007-11-07 2009-05-13 中国石化集团中原石油勘探局钻井工程技术研究院 Process for preparing vinyl sulphonate polymer drilling fluid finishing agent
CN102268166A (en) * 2010-06-03 2011-12-07 北京化工大学 Preparation method of terpolymer for oilfield water plugging
CN102464761A (en) * 2010-11-17 2012-05-23 中国石油化工股份有限公司 Sulphonated heat resistant and salt tolerant copolymer for oil field and preparation method thereof
CN103396515A (en) * 2013-08-09 2013-11-20 西南石油大学 High temperature resistant modified starch filtration reducing agent and preparation method thereof
CN103602322A (en) * 2013-11-11 2014-02-26 西南石油大学 High-temperature-resistant nanocomposite filtrate loss reducer for drilling fluid and preparation method thereof

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
B. H. HUTCHINSON等: "Water-soluble copolymers: 15. Studies of random copolymers of acrylamide with N-substituted acrylamides by 13C n.m.r.", 《POLYMER》 *
张玉平等: "P(AM-DAAM-NVP)三元共聚物的耐温抗盐性能研究", 《精细化工》 *
袁清香等: "丙烯酰胺衍生物及其高聚物的研究进展", 《广东化工》 *
陈锡荣等: "驱油用耐温抗盐水溶性聚合物的研究进展", 《石油化工》 *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104710568A (en) * 2015-04-01 2015-06-17 西安石油大学 Preparation method of retarding swelling anti-salt viscoelastic particle profile control agent
CN104961863A (en) * 2015-06-25 2015-10-07 武汉工程大学 Method for preparing polysaccharide biogum polymer gel profile control agent
CN105368422A (en) * 2015-12-09 2016-03-02 天津大港油田滨港集团博弘石油化工有限公司 Pre-crosslinking swell particle profile-control agent and preparation method thereof
CN105504645A (en) * 2015-12-19 2016-04-20 中国石油天然气股份有限公司 Terpolymer elastic granular profile control material and preparation method thereof
CN105504645B (en) * 2015-12-19 2018-02-02 中国石油天然气股份有限公司 A kind of terpolymer elastic granule profile control material and preparation method thereof
CN105860947A (en) * 2016-04-19 2016-08-17 中国石油天然气股份有限公司 Degradation-delayed high temperature-resistant high-salinity profile control agent and preparation method thereof
CN105860947B (en) * 2016-04-19 2018-10-16 中国石油天然气股份有限公司 A kind of profile control agent and preparation method thereof of slow degradation high temperature resistant high salinity
CN109232826B (en) * 2018-07-18 2019-04-16 西南石油大学 A kind of pre-crosslinked gel particle and preparation method thereof of POSS base hydridization
CN109232826A (en) * 2018-07-18 2019-01-18 西南石油大学 A kind of pre-crosslinked gel particle and preparation method thereof of POSS base hydridization
CN109762540A (en) * 2018-12-20 2019-05-17 中国石油集团川庆钻探工程有限公司 Supermolecule sealing agent and preparation method thereof
CN113773821A (en) * 2020-06-10 2021-12-10 中国石油天然气股份有限公司 High-temperature blockage-regulating cleanup additive and preparation method and application thereof
CN114426638A (en) * 2020-10-14 2022-05-03 中国石油化工股份有限公司 Heavy oil reservoir high-permeability zone multistage plugging and conditioning agent and preparation method thereof
CN113265026A (en) * 2021-05-24 2021-08-17 西南石油大学 Water-swelling rubber flexible temporary plugging particle and preparation method thereof
CN113265026B (en) * 2021-05-24 2022-04-12 西南石油大学 Water-swelling rubber flexible temporary plugging particle and preparation method thereof
CN115093600A (en) * 2022-07-08 2022-09-23 中海石油(中国)有限公司 Micro-bubble/foam self-crosslinking self-adaptive gel deep profile control and flooding system and application thereof
CN115093600B (en) * 2022-07-08 2023-07-18 中海石油(中国)有限公司 Microbubble/foam self-crosslinking self-adaptive gel deep profile control and flooding system and application thereof
CN115960309A (en) * 2023-02-13 2023-04-14 西南石油大学 Polymer sand stabilizer and preparation method thereof
CN115960309B (en) * 2023-02-13 2024-03-26 西南石油大学 Polymer sand stabilizing agent and preparation method thereof

Similar Documents

Publication Publication Date Title
CN104277804A (en) AM-DAAM-AMPS ternary polymer gel particle drive-adjusting reagent and synthesis method thereof
US11015109B2 (en) Particulate profile control agent self-adaptive to size of formation pore throat and preparation method thereof
CN103555305B (en) Hyperbranched slow-swelling profile control particles and preparation method thereof
CN104449618B (en) A kind of heat-resistant salt-resistant high-temperature self-crosslinking in-situ polymerization water shutoff gel
CN105504158A (en) Intelligent gel particles capable of being crosslinked again under stratum condition and preparation method and application of intelligent gel particles
CN104371682A (en) AA-AM-AMPS-DAC (acrylic acid-acrylamide-2-acrylamido-methylpropanesulfonic acid-acryloyloxyethyl ammonium chloride) polymer gel plugging agent and synthesis method thereof
CN102585093B (en) Pre-crosslinked gel granulate for profile control and polymer flooding as well as preparation method and application of pre-crosslinked gel granulates
CN102952533B (en) Composite cross-linked polymer weak gel oil displacement agent and preparation method thereof
CN109369848A (en) A kind of functional form temperature-resistant anti-salt plugging agent and preparation method thereof
CN102140337B (en) Hydrophobically associating hydroxyethylcellulose oil displacement agent
CN102533240B (en) High-temperature oil reservoir composite modifying and flooding agent and preparing method and application thereof
CN109232826B (en) A kind of pre-crosslinked gel particle and preparation method thereof of POSS base hydridization
CN104371681A (en) AA/AM/SSS underground cross-linked polymer gel plugging agent and preparation method thereof
Song et al. Laboratory evaluation of a novel Self-healable polymer gel for CO2 leakage remediation during CO2 storage and CO2 flooding
CN104861110A (en) Anti-swelling and sand-inhibiting agent for high-permeability heavy oil reservoir and preparation method of anti-swelling and sand-inhibiting agent
CN103923629A (en) Plugging agent
CN104829784A (en) Dissoluble polymeric microsphere deep profile modifying and flooding agent and preparation method thereof
CN105112034B (en) A kind of high-temperature-resgelant gelant diversion agent and the preparation method and application thereof
CN105085839A (en) Preparation method of water soluble AM-AA-modified nanometer SiO2 functional monomer terpolymer oil displacement agent
CN104194753A (en) Water dispersible profile control agent for oil extraction and preparation method thereof
WO2014113112A1 (en) Fluorescent tags for detection of swellable polymers
CN106520107A (en) Acryloyl morpholine polymer oil-displacing agent and preparation method thereof
CN104987857A (en) High-salinity-resistant self-tackifying hydrophobically associating polymer gel plugging agent and preparing method thereof
CN104762076A (en) Water soluble AM-AA-modified nanometer SiO2 functional monomer terpolymer oil-displacement agent
CN103967466B (en) PGZ closes down in oil field well restore exploitation and production-increasing technique

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150114