BR8004900A - Copolimeros hidrossoluveis,sua preparacao e emprego - Google Patents

Copolimeros hidrossoluveis,sua preparacao e emprego

Info

Publication number
BR8004900A
BR8004900A BR8004900A BR8004900A BR8004900A BR 8004900 A BR8004900 A BR 8004900A BR 8004900 A BR8004900 A BR 8004900A BR 8004900 A BR8004900 A BR 8004900A BR 8004900 A BR8004900 A BR 8004900A
Authority
BR
Brazil
Prior art keywords
copolimers
employment
soluble
preparation
water
Prior art date
Application number
BR8004900A
Other languages
English (en)
Inventor
F Engelhardt
M Hille
U Riegel
H Wittkus
Original Assignee
Cassella Ag
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 Cassella Ag filed Critical Cassella Ag
Publication of BR8004900A publication Critical patent/BR8004900A/pt

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
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/14—Clay-containing compositions
    • C09K8/18—Clay-containing compositions characterised by the organic compounds
    • C09K8/22—Synthetic organic compounds
    • C09K8/24—Polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
    • C08F220/585—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Earth Drilling (AREA)
  • Cleaning In General (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Medicinal Preparation (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
BR8004900A 1979-08-06 1980-08-05 Copolimeros hidrossoluveis,sua preparacao e emprego BR8004900A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792931897 DE2931897A1 (de) 1979-08-06 1979-08-06 Wasserloesliches copolymerisat und seine herstellung

Publications (1)

Publication Number Publication Date
BR8004900A true BR8004900A (pt) 1981-02-17

Family

ID=6077779

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8004900A BR8004900A (pt) 1979-08-06 1980-08-05 Copolimeros hidrossoluveis,sua preparacao e emprego

Country Status (16)

Country Link
US (2) US4309523A (pt)
EP (1) EP0023712B1 (pt)
JP (1) JPS5624413A (pt)
AT (1) ATE2749T1 (pt)
AU (1) AU530385B2 (pt)
BR (1) BR8004900A (pt)
CA (1) CA1171597A (pt)
DD (1) DD153879A5 (pt)
DE (2) DE2931897A1 (pt)
DK (1) DK337080A (pt)
ES (1) ES8107264A1 (pt)
MX (1) MX155501A (pt)
NO (1) NO159099C (pt)
SU (2) SU995707A3 (pt)
YU (2) YU197180A (pt)
ZA (1) ZA804744B (pt)

Families Citing this family (100)

* Cited by examiner, † Cited by third party
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US4507440A (en) * 1980-12-15 1985-03-26 Cassella Aktiengesellschaft Cross-linkable and cross linked macromolecular compositions wherein cross-linking is by structural bridges of the formula --NRx --CH═N--CO-- and their preparation
DD207208A5 (de) * 1980-12-15 1984-02-22 Cassella Ag Vernetzbare, wasserloesliche polymer-zusammensetzung
DE3124454A1 (de) * 1981-06-22 1983-07-14 Cassella Ag, 6000 Frankfurt Wasserquellbare vernetzte copolymerisate, ihre herstellung und verwendung
DE3144770A1 (de) * 1981-11-11 1983-05-19 Cassella Ag, 6000 Frankfurt Wasserloesliches copolymerisat, seine herstellung und verwendung
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DE3379330D1 (en) * 1982-12-09 1989-04-13 Cassella Farbwerke Mainkur Ag Water soluble polymers, their preparation and their use
DE3248019A1 (de) * 1982-12-24 1984-06-28 Cassella Ag, 6000 Frankfurt Wasserloesliche copolymerisate, ihre herstellung und ihre verwendung
DE3302168A1 (de) * 1983-01-24 1984-07-26 Hoechst Ag, 6230 Frankfurt Zementschlaemme fuer tiefbohrungen mit einem gehalt an copolymerisaten zur verminderung des wasserverlustes
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US4640942A (en) * 1985-09-25 1987-02-03 Halliburton Company Method of reducing fluid loss in cement compositions containing substantial salt concentrations
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US4703092A (en) * 1985-11-08 1987-10-27 Nalco Chemical Company Process of making N-(2-hydroxy-3-sulfopropyl)amide containing polymers
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US6169058B1 (en) 1997-06-05 2001-01-02 Bj Services Company Compositions and methods for hydraulic fracturing
US6235809B1 (en) 1997-09-30 2001-05-22 Bj Services Company Multi-functional additive for use in well cementing
US6228812B1 (en) * 1998-12-10 2001-05-08 Bj Services Company Compositions and methods for selective modification of subterranean formation permeability
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CN104179466B (zh) * 2013-05-21 2016-08-24 金川集团股份有限公司 钻探中降低泥浆失水量的方法
US10844270B2 (en) 2013-09-17 2020-11-24 Baker Hughes, A Ge Company, Llc Method of enhancing stability of cement slurries in well cementing operations
US10767098B2 (en) 2013-09-17 2020-09-08 Baker Hughes, A Ge Company, Llc Method of using sized particulates as spacer fluid
US10822917B2 (en) 2013-09-17 2020-11-03 Baker Hughes, A Ge Company, Llc Method of cementing a well using delayed hydratable polymeric viscosifying agents
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CN104910323B (zh) * 2015-05-11 2017-06-16 中海油能源发展股份有限公司 一种含聚污泥解聚剂及其制备方法
RU2726696C2 (ru) * 2017-12-11 2020-07-15 Федеральное государственное бюджетное учреждение науки Пермского федерального исследовательского центра Уральского отделения Российской академии наук (ПФИЦ УрО РАН) Противотурбулентная присадка для буровых растворов
US11028309B2 (en) 2019-02-08 2021-06-08 Baker Hughes Oilfield Operations Llc Method of using resin coated sized particulates as spacer fluid
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Also Published As

Publication number Publication date
NO159099B (no) 1988-08-22
AU530385B2 (en) 1983-07-14
NO159099C (no) 1988-11-30
DE3062285D1 (en) 1983-04-14
ES494003A0 (es) 1981-10-01
NO802321L (no) 1981-02-09
US4309523A (en) 1982-01-05
AU6109980A (en) 1981-02-12
SU995707A3 (ru) 1983-02-07
YU1383A (en) 1983-12-31
DD153879A5 (de) 1982-02-10
JPS5624413A (en) 1981-03-09
ES8107264A1 (es) 1981-10-01
EP0023712A1 (de) 1981-02-11
DE2931897A1 (de) 1981-02-26
EP0023712B1 (de) 1983-03-09
SU1207398A3 (ru) 1986-01-23
US4357245A (en) 1982-11-02
CA1171597A (en) 1984-07-24
MX155501A (es) 1988-03-18
ATE2749T1 (de) 1983-03-15
JPH0223566B2 (pt) 1990-05-24
YU197180A (en) 1983-04-30
ZA804744B (en) 1981-07-29
DK337080A (da) 1981-02-07

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19950805

B15K Others concerning applications: alteration of classification

Ipc: C08F 220/58 (2006.01), C09K 8/24 (2006.0