GB1396031A - Dispersing and or dissolving cellular microorganisms - Google Patents

Dispersing and or dissolving cellular microorganisms

Info

Publication number
GB1396031A
GB1396031A GB2015272A GB2015272A GB1396031A GB 1396031 A GB1396031 A GB 1396031A GB 2015272 A GB2015272 A GB 2015272A GB 2015272 A GB2015272 A GB 2015272A GB 1396031 A GB1396031 A GB 1396031A
Authority
GB
United Kingdom
Prior art keywords
treatment
wells
disperse
cell wall
liquid
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.)
Expired
Application number
GB2015272A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1396031A publication Critical patent/GB1396031A/en
Expired 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/84—Compositions based on water or polar solvents
    • C09K8/86—Compositions based on water or polar solvents containing organic compounds
    • C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/90—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
    • C09K8/905—Biopolymers

Abstract

1396031 Wells SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 1 May 1972 [17 May 1971] 20152/72 Heading E1F Cellular micro-organisms which block the formations in earth formations or clog the liquid-conveying or liquid-containing means connected to wells are dissolved or dispersed by treatment with an aqueous solution containing at least one alkali metal hydroxide, a surfactant effective to disperse the outer cell wall of a fatty material containing lipoprotein and lipopolysaccharide and a chelating agent effective to disperse the inner cell wall of a rigid mucopeptide nature. The preferred surfactants are polyethoxylated aliphatic alcohol sulphates while chelating agents exemplified include polyaminopolycarboxylic acids, α-hydroxy acids and condensed polyphosphates. The treatment may be followed by a conventional acidising treatment.
GB2015272A 1971-05-17 1972-05-01 Dispersing and or dissolving cellular microorganisms Expired GB1396031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14427571A 1971-05-17 1971-05-17

Publications (1)

Publication Number Publication Date
GB1396031A true GB1396031A (en) 1975-05-29

Family

ID=22507860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2015272A Expired GB1396031A (en) 1971-05-17 1972-05-01 Dispersing and or dissolving cellular microorganisms

Country Status (5)

Country Link
CA (1) CA968701A (en)
GB (1) GB1396031A (en)
IE (1) IE36341B1 (en)
NL (1) NL7205770A (en)
NO (1) NO137506C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132664A (en) * 1982-12-29 1984-07-11 Stauffer Chemical Co Enhanced oil recovery using alkaline/polymer flooding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132664A (en) * 1982-12-29 1984-07-11 Stauffer Chemical Co Enhanced oil recovery using alkaline/polymer flooding

Also Published As

Publication number Publication date
IE36341L (en) 1972-11-17
NO137506C (en) 1978-03-08
CA968701A (en) 1975-06-03
NL7205770A (en) 1972-11-21
NO137506B (en) 1977-11-28
IE36341B1 (en) 1976-10-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee