GB805848A - Improvements in or relating to magnesia cements particularly for the sealing of boreholes - Google Patents

Improvements in or relating to magnesia cements particularly for the sealing of boreholes

Info

Publication number
GB805848A
GB805848A GB3006055A GB3006055A GB805848A GB 805848 A GB805848 A GB 805848A GB 3006055 A GB3006055 A GB 3006055A GB 3006055 A GB3006055 A GB 3006055A GB 805848 A GB805848 A GB 805848A
Authority
GB
United Kingdom
Prior art keywords
cement
magnesia
calcined
dolomite
magnesium chloride
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
GB3006055A
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.)
Individual
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
Priority to GB3006055A priority Critical patent/GB805848A/en
Publication of GB805848A publication Critical patent/GB805848A/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
    • C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Sealing Material Composition (AREA)

Abstract

A cement which sets hard in a predetermined period of time under elevated temperature conditions, and which expands on setting, comprises magnesia, which has been calcined at a temperature of 2000 DEG to 2400 DEG F., mixed with an aqueous solution of magnesium chloride of not less than 19 DEG Be and/or magnesium sulphate of not less then 22 DEG Be, and a finely divided calcium-containing material, e.g. calcium carbonate or dolomite to cause expansion of the cement on setting. The cement may contain a further finely divided filler, e.g. silica, talc, shale, or barytes, and is particularly adapted for use in sealing an annular space between the wall of an oil well and a tubular casing within the latter. In an Example the cement comprises 100 lbs. of magnesia calcined at 2000 DEG to 2400 DEG F., 100 lbs. pulverized dolomite or calcite and 7 gallons aqueous magnesium chloride solution of 22 DEG Be, and sets in 4 hours 15 minutes at 120 DEG F. In two other Examples the cement comprises (1) calcined magnesia, silica, calcite, and magnesium chloride solution of 22 DEG Be, and (2) magnesia, dolomite, and magnesium sulphate solution of 28 DEG Be.
GB3006055A 1955-10-20 1955-10-20 Improvements in or relating to magnesia cements particularly for the sealing of boreholes Expired GB805848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3006055A GB805848A (en) 1955-10-20 1955-10-20 Improvements in or relating to magnesia cements particularly for the sealing of boreholes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3006055A GB805848A (en) 1955-10-20 1955-10-20 Improvements in or relating to magnesia cements particularly for the sealing of boreholes

Publications (1)

Publication Number Publication Date
GB805848A true GB805848A (en) 1958-12-17

Family

ID=10301607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3006055A Expired GB805848A (en) 1955-10-20 1955-10-20 Improvements in or relating to magnesia cements particularly for the sealing of boreholes

Country Status (1)

Country Link
GB (1) GB805848A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340929A (en) * 1965-07-27 1967-09-12 Halliburton Co Method for cementing wells
US3420299A (en) * 1965-10-07 1969-01-07 Robert E Cloud Method and means of cementing a casing into a well structure
FR2589949A1 (en) * 1985-11-07 1987-05-15 Didier Werke Ag Filling space in salt stock to form seal between waste containers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340929A (en) * 1965-07-27 1967-09-12 Halliburton Co Method for cementing wells
US3420299A (en) * 1965-10-07 1969-01-07 Robert E Cloud Method and means of cementing a casing into a well structure
FR2589949A1 (en) * 1985-11-07 1987-05-15 Didier Werke Ag Filling space in salt stock to form seal between waste containers

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