CA2444555A1 - Apparatus and methods for drilling with casing - Google Patents

Apparatus and methods for drilling with casing Download PDF

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Publication number
CA2444555A1
CA2444555A1 CA002444555A CA2444555A CA2444555A1 CA 2444555 A1 CA2444555 A1 CA 2444555A1 CA 002444555 A CA002444555 A CA 002444555A CA 2444555 A CA2444555 A CA 2444555A CA 2444555 A1 CA2444555 A1 CA 2444555A1
Authority
CA
Canada
Prior art keywords
casing
drilling
cementing
fluid
interior
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
CA002444555A
Other languages
French (fr)
Other versions
CA2444555C (en
Inventor
David M. Haugen
Frederick T. Tilton
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.)
Weatherford Technology Holdings LLC
Original Assignee
Weatherford Lamb Inc
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 Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Priority to CA2616946A priority Critical patent/CA2616946C/en
Publication of CA2444555A1 publication Critical patent/CA2444555A1/en
Application granted granted Critical
Publication of CA2444555C publication Critical patent/CA2444555C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • 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
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • E21B21/085—Underbalanced techniques, i.e. where borehole fluid pressure is below formation pressure
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type drives

Abstract

The present invention provides an apparatus and methods to reduce ECD and pressure associated therewith while drilling with casing. In one aspect, the invention provides an energy transfer assembly locatable at a predetermined location in a casing string. The assembly includes an impeller portion in the interior of the casing to be acted upon by the downward moving fluid in the casing and a pump portion disposed outwardly of the impeller portion and arranged in fluid communication with the upward moving fluid in the annulus between the casing and the borehole, adding energy thereto and reducing pressure in the annulus therebelow. In another aspect, the energy transfer assembly is retrievable to the surface of the wellbore prior to cementing. In a further aspect, fluid ports between the interior and exterior of the casing are remotely sealable prior to cementing.
CA002444555A 2002-10-11 2003-10-10 Apparatus and methods for drilling with casing Expired - Fee Related CA2444555C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2616946A CA2616946C (en) 2002-10-11 2003-10-10 An energy transfer assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/269,661 US6896075B2 (en) 2002-10-11 2002-10-11 Apparatus and methods for drilling with casing
US10/269,661 2002-10-11

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2616946A Division CA2616946C (en) 2002-10-11 2003-10-10 An energy transfer assembly

Publications (2)

Publication Number Publication Date
CA2444555A1 true CA2444555A1 (en) 2004-04-11
CA2444555C CA2444555C (en) 2008-04-08

Family

ID=29420163

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002444555A Expired - Fee Related CA2444555C (en) 2002-10-11 2003-10-10 Apparatus and methods for drilling with casing

Country Status (4)

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US (2) US6896075B2 (en)
CA (1) CA2444555C (en)
GB (1) GB2393988B (en)
NO (1) NO326511B1 (en)

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US6896075B2 (en) 2005-05-24
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GB2393988A (en) 2004-04-14
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US7090023B2 (en) 2006-08-15
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US20050205250A1 (en) 2005-09-22
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CA2444555C (en) 2008-04-08
NO20034575D0 (en) 2003-10-10

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