FR2045785A2 - Acid purification for well formations - Google Patents

Acid purification for well formations

Info

Publication number
FR2045785A2
FR2045785A2 FR7019716A FR7019716A FR2045785A2 FR 2045785 A2 FR2045785 A2 FR 2045785A2 FR 7019716 A FR7019716 A FR 7019716A FR 7019716 A FR7019716 A FR 7019716A FR 2045785 A2 FR2045785 A2 FR 2045785A2
Authority
FR
France
Prior art keywords
acid purification
well formations
pref
ether
flushing
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
Application number
FR7019716A
Other languages
French (fr)
Other versions
FR2045785B2 (en
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.)
ExxonMobil Upstream Research Co
Original Assignee
Exxon Production Research Co
Esso Production Research Co
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
Priority claimed from FR6933402A external-priority patent/FR2058866A5/en
Application filed by Exxon Production Research Co, Esso Production Research Co filed Critical Exxon Production Research Co
Publication of FR2045785A2 publication Critical patent/FR2045785A2/en
Application granted granted Critical
Publication of FR2045785B2 publication Critical patent/FR2045785B2/fr
Granted 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
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/72—Eroding chemicals, e.g. acids
    • C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
    • 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

Abstract

Water-soluble glycolether is introduced into the formation in isolation between the first acid solution treatment and the subsequent flushing, or with the flushing. The ether is pref.injected in concentrations of 5 to 15 vol.%. The pref. ether is ethylene glycol monobutyl ester
FR7019716A 1969-06-02 1970-05-29 Acid purification for well formations Granted FR2045785A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82977369A 1969-06-02 1969-06-02
FR6933402A FR2058866A5 (en) 1969-09-30 1969-09-30 Permeabilising sandstone oil well formation by - injection

Publications (2)

Publication Number Publication Date
FR2045785A2 true FR2045785A2 (en) 1971-03-05
FR2045785B2 FR2045785B2 (en) 1975-02-21

Family

ID=26215295

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7019716A Granted FR2045785A2 (en) 1969-06-02 1970-05-29 Acid purification for well formations

Country Status (1)

Country Link
FR (1) FR2045785A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402770A (en) * 1965-06-02 1968-09-24 Mobil Oil Corp Multiple-purpose solvent and method for treating subterranean formations
US3481404A (en) * 1969-02-03 1969-12-02 Exxon Production Research Co Sandstone acidizing process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402770A (en) * 1965-06-02 1968-09-24 Mobil Oil Corp Multiple-purpose solvent and method for treating subterranean formations
US3481404A (en) * 1969-02-03 1969-12-02 Exxon Production Research Co Sandstone acidizing process

Also Published As

Publication number Publication date
FR2045785B2 (en) 1975-02-21

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