CA2380095A1 - A low-density and low-porosity cementing slurry for oil wells - Google Patents

A low-density and low-porosity cementing slurry for oil wells Download PDF

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Publication number
CA2380095A1
CA2380095A1 CA002380095A CA2380095A CA2380095A1 CA 2380095 A1 CA2380095 A1 CA 2380095A1 CA 002380095 A CA002380095 A CA 002380095A CA 2380095 A CA2380095 A CA 2380095A CA 2380095 A1 CA2380095 A1 CA 2380095A1
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CA
Canada
Prior art keywords
cement
range
lying
volume
slurry according
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
CA002380095A
Other languages
French (fr)
Other versions
CA2380095C (en
Inventor
Bruno Drochon
Andre Garnier
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.)
Schlumberger Canada Ltd
Original Assignee
Schlumberger Canada Limited
Bruno Drochon
Andre Garnier
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 Schlumberger Canada Limited, Bruno Drochon, Andre Garnier filed Critical Schlumberger Canada Limited
Publication of CA2380095A1 publication Critical patent/CA2380095A1/en
Application granted granted Critical
Publication of CA2380095C publication Critical patent/CA2380095C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C04B28/02—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 hydraulic cements other than calcium sulfates
    • 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
    • C04B28/02—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 hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • 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
    • 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
    • C09K8/467—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 containing additives for specific purposes
    • C09K8/473—Density reducing additives, e.g. for obtaining foamed cement compositions
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0027—Standardised cement types
    • C04B2103/0028—Standardised cement types according to API
    • C04B2103/0035—Type G
    • 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
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density

Abstract

The invention relates to a cement slurry for cementing an oil well or the like, the slurry having a density lying in the range 0.9 g/cm3 to 1.3 g/cm3, and being constituted by a solid fraction and a liquid fraction, having porosity (ratio of liquid fraction volume over total volume) lying in the range 38% to 50%. The solid fraction is constituted by a mixture of lightweight particles, microcement and optionally Portland cement and gypsum. Such cements have remarkable mechanical properties due to their very low porosity in spite of having very low density.

Claims (8)

1/ A cement slurry for cementing an oil well or the like, the slurry having a density lying in the range 0.9 g/cm3 to 1.3 g/cm3, and being constituted by a solid fraction and a liquid fraction, having porosity (volume ratio of liquid fraction over solid fraction) lying in the range 38% to 50%, said solid fraction comprising :

.cndot. 60% to 90% (by volume) of lightweight particles having a mean size lying in the range 20 microns (µm) to 350 µm;
.cndot. 10% to 30% (by volume) of micro-cement having a mean particle diameter lying in the range 0:5 µm to 5 µm;
.cndot. 0 to 20% (by volume) of Portland cement, having particles with a mean diameter lying in the range 20 µm to 50 µm; and .cndot. 0 to 30% (by volume) of gypsum.
2/ A cement slurry according to claim 1, characterized by porosity of less than 45%.
3/ A cement slurry according to any preceding claim, characterized in that said lightweight particles have a density of less than 2 g/cm3, and preferably less than 0.8 g/cm3.
4/ A cement slurry according to claim 3, characterized in that said lightweight particles are selected from hollow microspheres, in particular silico-aluminate microspheres or cenospheres, synthetic materials such as hollow glass beads, and more particularly beads of sodium-calcium-borosilicate glass, ceramic microspheres, e.g. of the silica-alumina type, or beads of plastics material such as polypropylene beads.
5/ A cement slurry according to any preceding claim, characterized in that the slurry has one or more additives of the following types: dispersants, antifreeze, water retainers, cement setting accelerators or retarders, and foam stabilizers.
6/ A cement slurry according to any preceding claim, characterized in that the solid fraction of the slurry is constituted by lightweight particles of diameter lying in the range 100 µm to 350 µm and by particles of micro-cement, with the ratio of lightweight particles to micro-cement lying in the range 70:30 to 85:15.
7/ A cement slurry according to any one of claims 1 to 6, characterized in that the solid fraction of the mixture is constituted by 50% to 60% (by volume) of first lightweight particles having a mean diameter lying in the range 100 µm to 400 µm, by 30% to 45% of second lightweight particles of mean diameter lying in the range 20 µm to 40 µm, and by 5% to 20% of micro-cement.
8/ Use of the slurry according to any preceding claim in cementing oil, gas, or similar wells.
CA002380095A 1999-07-29 2000-07-06 A low-density and low-porosity cementing slurry for oil wells Expired - Fee Related CA2380095C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9909847A FR2796935B1 (en) 1999-07-29 1999-07-29 CEMENT GROUT FOR LOW DENSITY AND LOW POROSITY OIL WELLS OR THE LIKE
FR99/09847 1999-07-29
PCT/EP2000/006459 WO2001009056A1 (en) 1999-07-29 2000-07-06 A low-density and low-porosity cementing slurry for oil wells or the like

Publications (2)

Publication Number Publication Date
CA2380095A1 true CA2380095A1 (en) 2001-02-08
CA2380095C CA2380095C (en) 2009-11-24

Family

ID=9548657

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002380095A Expired - Fee Related CA2380095C (en) 1999-07-29 2000-07-06 A low-density and low-porosity cementing slurry for oil wells

Country Status (18)

Country Link
US (1) US6626991B1 (en)
EP (1) EP1204616B1 (en)
JP (1) JP4731773B2 (en)
CN (1) CN1223544C (en)
AT (1) ATE276213T1 (en)
AU (1) AU772997B2 (en)
BR (1) BR0012504B1 (en)
CA (1) CA2380095C (en)
DE (1) DE60013854T2 (en)
DK (1) DK1204616T3 (en)
EA (1) EA003917B1 (en)
FR (1) FR2796935B1 (en)
GB (1) GB2366562B (en)
GC (1) GC0000135A (en)
MX (1) MXPA02000959A (en)
NO (1) NO335505B1 (en)
OA (1) OA12001A (en)
WO (1) WO2001009056A1 (en)

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Also Published As

Publication number Publication date
FR2796935A1 (en) 2001-02-02
US6626991B1 (en) 2003-09-30
FR2796935B1 (en) 2001-09-21
BR0012504A (en) 2002-05-28
NO20020432D0 (en) 2002-01-28
JP2003506527A (en) 2003-02-18
DE60013854T2 (en) 2005-09-22
NO335505B1 (en) 2014-12-22
OA12001A (en) 2006-04-18
GC0000135A (en) 2005-06-29
CA2380095C (en) 2009-11-24
AU772997B2 (en) 2004-05-13
GB2366562B (en) 2004-01-07
GB2366562A (en) 2002-03-13
EP1204616B1 (en) 2004-09-15
MXPA02000959A (en) 2002-09-18
ATE276213T1 (en) 2004-10-15
EA003917B1 (en) 2003-10-30
DK1204616T3 (en) 2005-01-31
CN1367768A (en) 2002-09-04
DE60013854D1 (en) 2004-10-21
EA200200215A1 (en) 2002-06-27
EP1204616A1 (en) 2002-05-15
JP4731773B2 (en) 2011-07-27
WO2001009056A1 (en) 2001-02-08
BR0012504B1 (en) 2009-08-11
NO20020432L (en) 2002-01-28
CN1223544C (en) 2005-10-19
AU6270200A (en) 2001-02-19

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