CA2492797A1 - Shale hydration inhibition agent and method of use - Google Patents

Shale hydration inhibition agent and method of use Download PDF

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Publication number
CA2492797A1
CA2492797A1 CA002492797A CA2492797A CA2492797A1 CA 2492797 A1 CA2492797 A1 CA 2492797A1 CA 002492797 A CA002492797 A CA 002492797A CA 2492797 A CA2492797 A CA 2492797A CA 2492797 A1 CA2492797 A1 CA 2492797A1
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CA
Canada
Prior art keywords
drilling fluid
shale
water
group
inhibition agent
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
CA002492797A
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French (fr)
Other versions
CA2492797C (en
Inventor
Arvind D. Patel
Emanuel Stamatakis
Eric Davis
Steve Cliffe
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.)
MI LLC
Original Assignee
M-I L.L.C.
Arvind D. Patel
Emanuel Stamatakis
Eric Davis
Steve Cliffe
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Application filed by M-I L.L.C., Arvind D. Patel, Emanuel Stamatakis, Eric Davis, Steve Cliffe filed Critical M-I L.L.C.
Publication of CA2492797A1 publication Critical patent/CA2492797A1/en
Application granted granted Critical
Publication of CA2492797C publication Critical patent/CA2492797C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/14—Clay-containing compositions
    • C09K8/18—Clay-containing compositions characterised by the organic compounds
    • C09K8/20—Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
    • C09K8/206—Derivatives of other natural products, e.g. cellulose, starch, sugars
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/06—Clay-free compositions
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/06—Clay-free compositions
    • C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/14—Clay-containing compositions
    • C09K8/18—Clay-containing compositions characterised by the organic compounds
    • C09K8/22—Synthetic organic compounds
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/14—Clay-containing compositions
    • C09K8/18—Clay-containing compositions characterised by the organic compounds
    • C09K8/22—Synthetic organic compounds
    • C09K8/24—Polymers
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/068—Arrangements for treating drilling fluids outside the borehole using chemical treatment
    • 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
    • C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S507/00—Earth boring, well treating, and oil field chemistry
    • Y10S507/905—Nontoxic composition

Abstract

A water-base drilling fluid for use in drilling wells through a formation containing a shale which swells in the presence of water. The drilling fluid preferably includes: an aqueous based continuous phase, a weight material, and a shale hydration inhibition agent having the formula:H2N - R - { OR' }X -Y
.bullet. [H+ B-]din which R and R' are alkylene groups having 1 to 6 carbon atom and x is a value from about 1 to about 25. The Y group should be an amine or alkoxy group, preferably a primary amine or a methoxy group. The acid H+ B-is a protic acid selected from the group consisting of inorganic acids and organic acids, illustrative examples of which include: hydrochloric, hydrobromic, sulfuric, phosphoric, nitric, boric, perchloric, formic, acetic, halogenated acetic, propionic, butyric, maleic, fumeric, glycolic, lactic, citric and combinations of these. The shale hydration inhibition agent should be present in sufficient concentration to reduce the swelling of the shale.
Also inclusive of the present invention is a method of reducing the swelling of shale clay encountered during the drilling of a subterranean well, the method comprising circulating in the well a water-base drilling fluid formulated in accordance with the present invention.

Claims (18)

CLAIMS:
1. A water-base drilling fluid for use in drilling wells through a formation containing a shale which swells in the presence of water, the drilling fluid comprising:
an aqueous based continuous phase;
a weight material; and a shale hydration inhibition agent having the formula:
H2N - R - { OR' }x -Y .cndot. [H+ B-]d wherein R and R' are alkylene groups having 1 to 6 carbon atoms and x is a value from about 1 to about 25, and and Y is an amine or alkoxy group and B- is the conjugate base of an acid and d is a value equal to or less than 2 wherein the shale hydration inhibition agent is present in sufficient concentration to reduce the swelling of the shale.
2. The drilling fluid of claim 1 wherein x has an average number between about 1 and about 10.
3. The drilling fluid of claim 1 wherein R and R' are alkylene groups having a different number of carbon atoms or a same number of carbon atoms.
4. The drilling fluid of claim 1 wherein H+ B- is a protic acid selected from the group consisting of inorganic acids and organic acids.
S. The drilling fluid of claim 1 wherein B- is the conjugate base of an acid selected from the group including: hydrochloric, hydrobromic, sulfuric, phosphoric, nitric, boric, perchloric, formic, acetic, halogenated acetic, propionic, butyric, maleic, fumeric, glycolic, lactic, citric and combinations of these.
6. The drilling fluid of claim 1 wherein the shale hydration inhibition agent being further characterized by low toxicity and compatibility with anionic drilling fluid components.
7. The drilling fluid of claim 1 wherein the aqueous based continuous phase is selected from: fresh water, sea water, brine, mixtures of water and water soluble organic compounds and mixtures thereof.
8. The drilling fluid of claim 1 wherein the drilling fluid further contains a fluid loss control agent selected from the group consisting of organic polymers, starches, and mixtures thereof.
9. A water-base drilling fluid for use in drilling wells through a formation containing a shale clay which swells in the presence of water, the drilling fluid comprising an aqueous based continuous phase a weight material, and a shale hydration inhibition agent selected from the group:
H2N-CH2CH2-O-CH2CH2-NH2 .cndot. [H+B-]d H2N-CH2CH2CH2-O-CH2CH2-O-CH2CH2CH2-NH2 .cndot. [H+B-]d NH2-CH2-CH(CH3)-(O-CH2-CH(CH3))8-O-CH2-CH2-OCH3 .cndot. [H+B-]d wherein B- is the conjugate base of a erotic acid and d is a value equal to or less than 2, and mixtures of these, wherein the hydration inhibition agent is present in the drilling fluid in sufficient concentrations to reduce the swelling of the clay.
10. The drilling fluid of claim 9 wherein the aqueous based continuous phase is selected from: fresh water, sea water, brine, mixtures of water and water soluble organic compounds and mixtures thereof.
11. The drilling fluid of claim 10 wherein the drilling fluid further contains a fluid loss control agent selected from the group consisting of organic polymers, starches, and mixtures thereof.
12 The drilling fluid of claim 11 wherein the drilling fluid further contains an encapsulating agent selected from the group consisting of organic and inorganic polymers and mixtures thereof
13. The drilling fluid of claim 11 wherein B- is the conjugate base of a protic acid selected from the group including: hydrochloric, hydrobromic, sulfuric, phosphoric, nitric, boric, perchloric, formic, acetic, halogenated acetic, propionic, butyric, malefic, fumeric, glycolic, lactic, citric and combinations of these.
14. A method of reducing the swelling of shale clay encountered during the drilling of a subterranean well, the method comprising:

circulating in the subterranean well a water-base drilling fluid including:
an aqueous based continuous phase and a shale hydration inhibition agent having the formula:
H2N-R- { OR' }x-Y .cndot. [H+B-]d wherein R and R' are alkylene groups having 1 to 6 carbon atoms and x is a value from about 1 to about 25, and Y is an amine or alkoxy group, and B' is the conjugate base of a protic acid and d is a value equal to or less than 2 wherein the shale hydration inhibition agent is present in sufficient concentration to reduce the swelling of the clay.
15. The drilling fluid of claim 14 wherein x has a value of about 1 to about 10.
16. The drilling fluid of claim 15 wherein B- is the conjugate base of a erotic acid selected from the group including: hydrochloric, hydrobromic, sulfuric, phosphoric, nitric, boric, perchloric, formic, acetic, halogenated acetic, propionic, butyric, maleic, fumeric, glycolic, lactic, citric and combinations of these.
17. A method of reducing the swelling of shale clay encountered during the drilling of a subterranean well, the method comprising:
circulating in the subterranean well a water-base drilling fluid including:
an aqueous based continuous phase, a weight material, and a functionally effective concentration of a shale hydration inhibition agent selected from the group:
H2N-CH2CH2-O-CH2CH2-NH2 .cndot. [H+B-]d H2N-CH2CH2CH2-O-CH2CH2-O-CH2CH2CH2-NH2 .cndot. [H+B-]d NH2-CH2-CH(CH3)-(O-CH2-CH(CH3))8-O-CH2-CH2-OCH3 .cndot. [H+B-]d wherein B- is the conjugate base of a erotic acid and d is a value equal to or less than 2, and mixtures of these compounds, and wherein the shale hydration inhibition agent being present in a concentration sufficient to reduce the swelling of the clay.
18. The method of claim 17 wherein B- is the conjugate base of a erotic acid selected from the group including: hydrochloric, hydrobromic, sulfuric, phosphoric, nitric, boric, perchloric, formic, acetic, halogenated acetic, propionic, butyric, maleic, fumeric, glycolic, lactic, citric and combinations of these.
CA2492797A 2002-07-15 2003-07-14 Shale hydration inhibition agent and method of use Expired - Fee Related CA2492797C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/195,686 2002-07-15
US10/195,686 US6857485B2 (en) 2000-02-11 2002-07-15 Shale hydration inhibition agent and method of use
PCT/US2003/021717 WO2004007897A2 (en) 2002-07-15 2003-07-14 Shale hydration inhibition agent and method of use

Publications (2)

Publication Number Publication Date
CA2492797A1 true CA2492797A1 (en) 2004-01-22
CA2492797C CA2492797C (en) 2011-06-28

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Country Status (11)

Country Link
US (1) US6857485B2 (en)
EP (1) EP1540126A4 (en)
CN (1) CN100341976C (en)
AU (1) AU2003251862B2 (en)
BR (1) BR0312687A (en)
CA (1) CA2492797C (en)
EA (1) EA008211B1 (en)
EC (1) ECSP055598A (en)
MX (1) MXPA05000623A (en)
NO (1) NO20050453L (en)
WO (1) WO2004007897A2 (en)

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US6857485B2 (en) 2005-02-22
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CA2492797C (en) 2011-06-28
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MXPA05000623A (en) 2005-04-25
CN1681902A (en) 2005-10-12
EA200500205A1 (en) 2005-08-25
BR0312687A (en) 2005-05-24
EA008211B1 (en) 2007-04-27
WO2004007897A2 (en) 2004-01-22
WO2004007897A3 (en) 2004-08-05
US20030106718A1 (en) 2003-06-12
EP1540126A2 (en) 2005-06-15
AU2003251862A1 (en) 2004-02-02
ECSP055598A (en) 2005-04-18
AU2003251862B2 (en) 2007-03-29

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