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CA2137007A1 - Method for removing alkaline sulfate scale - Google Patents

Method for removing alkaline sulfate scale

Info

Publication number
CA2137007A1
CA2137007A1 CA002137007A CA2137007A CA2137007A1 CA 2137007 A1 CA2137007 A1 CA 2137007A1 CA 002137007 A CA002137007 A CA 002137007A CA 2137007 A CA2137007 A CA 2137007A CA 2137007 A1 CA2137007 A1 CA 2137007A1
Authority
CA
Canada
Prior art keywords
scale
sonic
solvent
khz
frequency
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
CA002137007A
Other languages
French (fr)
Other versions
CA2137007C (en
Inventor
Richard L. Morris
James M. Paul
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.)
Mobil Oil AS
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2137007A1 publication Critical patent/CA2137007A1/en
Application granted granted Critical
Publication of CA2137007C publication Critical patent/CA2137007C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00—Dissolving
    • B01F21/02—Methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/20—Obtaining alkaline earth metals or magnesium
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/003—Vibrating earth formations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fluid Mechanics (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Saccharide Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Detergent Compositions (AREA)

Abstract

The present invention relates to the use of low frequency sonic energy in the sonic frequency range for enhancing the disso-lution of alkaline earth metal scales using a scale-removing solvent comprising an aqueous alkaline solution having a pH of about 8 to about 14 and containing EDTA or DTPA and a catalyst or synergist, preferably an oxalate anion. When the scale-rem-oving solvent is contacted with a surface containing a scale deposit while simultaneously transmitting low frequency sonic energy through the solvent, substantially more scale is dissolved at a faster rate than previously possible. The frequency of the sonic ener-gy is within the range of 1.5 to 6.5 kHz and preferably 1.5 kHz.
CA002137007A 1992-06-03 1993-06-02 Method for removing alkaline sulfate scale Expired - Lifetime CA2137007C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US89287692A 1992-06-03 1992-06-03
US07/892,876 1992-06-03
PCT/US1993/005317 WO1993024199A1 (en) 1992-06-03 1993-06-02 Method for removing alkaline sulfate scale

Publications (2)

Publication Number Publication Date
CA2137007A1 true CA2137007A1 (en) 1993-12-09
CA2137007C CA2137007C (en) 2003-09-16

Family

ID=25400649

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002137007A Expired - Lifetime CA2137007C (en) 1992-06-03 1993-06-02 Method for removing alkaline sulfate scale

Country Status (6)

Country Link
CA (1) CA2137007C (en)
GB (1) GB2282619B (en)
NL (1) NL9320035A (en)
NO (1) NO312438B1 (en)
RU (1) RU2110489C1 (en)
WO (1) WO1993024199A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733779B1 (en) * 1995-03-24 2002-12-18 Norbert Dipl.-Ing. Dipl.-Wirtsch.-Ing. Patzner Method and apparatus for cleaning wells by means of ultrasound
GB2338254B (en) 1998-06-12 2002-10-16 Sofitech Nv Well completion clean-up fluids and method for cleaning up drilling and completion filtercakes
US6140277A (en) * 1998-12-31 2000-10-31 Schlumberger Technology Corporation Fluids and techniques for hydrocarbon well completion
GB9914398D0 (en) 1999-06-22 1999-08-18 Bp Exploration Operating Reduction in solids deposition
GB9925373D0 (en) 1999-10-27 1999-12-29 Schlumberger Ltd Downhole instrumentation and cleaning system
US6631764B2 (en) 2000-02-17 2003-10-14 Schlumberger Technology Corporation Filter cake cleanup and gravel pack methods for oil based or water based drilling fluids
RU2286204C1 (en) * 2005-04-20 2006-10-27 Общество с ограниченной ответственностью "Астор-С" Method of preparation of the water solutions of electrolytes under action of the ultrasonic cavitation
RU2490430C1 (en) * 2012-10-04 2013-08-20 Открытое акционерное общество "Татнефть" им. В.Д. Шашина Procedure for oilfield pipeline operation
RU2552434C1 (en) * 2014-04-17 2015-06-10 Федеральное государственное бюджетное учреждение науки Институт химии нефти Сибирского отделения Российской академии наук Composition for sediment removal from oil wells and reservoir bottomhole zone
DE102017011116A1 (en) * 2017-11-30 2019-06-06 Alfred Pohlen Online cleaner for water-bearing or water-contacting systems
CA3038556A1 (en) 2019-04-01 2020-10-01 Fluid Energy Group Ltd. Composition useful in sulfate scale removal
CA3049343A1 (en) 2019-07-11 2021-01-11 Fluid Energy Group Ltd. Composition useful in sulfate scale removal
CA3114487A1 (en) 2021-04-09 2022-10-09 Fluid Energy Group Ltd Composition useful in sulfate scale removal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648769A (en) * 1970-09-04 1972-03-14 Beehler Vernon D Well cleaner
US3956164A (en) * 1974-09-23 1976-05-11 Calgon Corporation Chelating agents
US4320528A (en) * 1980-01-23 1982-03-16 Anco Engineers, Inc. Ultrasonic cleaner
US4980077A (en) * 1989-06-22 1990-12-25 Mobil Oil Corporation Method for removing alkaline sulfate scale

Also Published As

Publication number Publication date
NL9320035A (en) 1995-05-01
GB2282619B (en) 1996-06-05
NO944660D0 (en) 1994-12-02
GB2282619A (en) 1995-04-12
NO312438B1 (en) 2002-05-13
RU2110489C1 (en) 1998-05-10
CA2137007C (en) 2003-09-16
WO1993024199A1 (en) 1993-12-09
RU94046196A (en) 1996-10-20
GB9423576D0 (en) 1995-01-11
NO944660L (en) 1994-12-02

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Legal Events

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