CA2516649A1 - Drill shoe - Google Patents

Drill shoe Download PDF

Info

Publication number
CA2516649A1
CA2516649A1 CA002516649A CA2516649A CA2516649A1 CA 2516649 A1 CA2516649 A1 CA 2516649A1 CA 002516649 A CA002516649 A CA 002516649A CA 2516649 A CA2516649 A CA 2516649A CA 2516649 A1 CA2516649 A1 CA 2516649A1
Authority
CA
Canada
Prior art keywords
profile
body portion
removal apparatus
earth removal
drillable
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
CA002516649A
Other languages
French (fr)
Other versions
CA2516649C (en
Inventor
David Mckay
David M. Haugen
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 Lamb Inc
Original Assignee
Weatherford/Lamb, Inc.
David Mckay
David M. Haugen
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., David Mckay, David M. Haugen filed Critical Weatherford/Lamb, Inc.
Publication of CA2516649A1 publication Critical patent/CA2516649A1/en
Application granted granted Critical
Publication of CA2516649C publication Critical patent/CA2516649C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • 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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/14—Casing shoes for the protection of the bottom of the casing
    • 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
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
    • 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

Abstract

A method and apparatus for a drilling with casing includes therewith a drill shoe (10) configured for later drilling through thereof in situ, with cutters retainable thereon in response to the forces encountered during borehole drilling, yet moveable from the envelope through which the later drill shoe will pass when cutting through the in situ drill shoe (10). The drill shoe (10) includes one or more profiles thereon, into which blades (26) carrying the formation drilling cutters are disposed. The profiles include at least one projection thereon, which is received within a mating slot in the blades. The blades (26) also may be configured to have opposed sections which are configured with respect to one another to have an included angle (136) of less than ninety degrees.

Claims (43)

1. An earth removal apparatus, comprising:
a first body portion;
a second body portion at least partially to receivable within the first body portion;
a profile formed on an outer surface of the second body portion; and a cutting member releasably connectable with the profile, wherein the connection is releaseable along at least two axis and the profile is adapted to maintain the cutting member on the profile during operation.
2. The earth removal apparatus of claim 1, wherein the profile comprises at least two intersecting faces, wherein one of the faces provides a support against rotation of the cutting member.
3. The earth removal apparatus of claim 1, wherein the profile substantially prevents movement of the cutting member in the profile.
4. The earth removal apparatus of claim 1, wherein the cutting member comprises a first end and a second end, wherein the second end is selectively detachable from the profile.
5. The earth removal apparatus of claim 4, wherein the second end is attached to the second body portion.
6. An earth removal apparatus, comprising:
a drillable body portion having one or more passages therethrough;
at least one profile formed on an outer surface of the drillable body portion, the at least one profile including at least two intersecting faces, wherein one of the faces includes a projection thereon; and a blade matingly engageable with the at least one profile.
7. The earth removal apparatus of claim 6, further comprising a sleeve disposed around a portion of the drillable body portion.
8. The earth removal apparatus of claim 7, wherein the at least one profile extends into an outer surface of the sleeve, the blade additionally received in the at least one profile in the sleeve.
9. The earth removal apparatus of claim 6, wherein the projection is rectangular in cross section, and the blade includes a slot therein for receiving the projection.
10. The earth removal apparatus of claim 6, wherein the at least one profile is machined into the drillable body portion.
11. The earth removal apparatus of claim 6, wherein the blade is bonded to the at least one profile.
12. The earth removal apparatus of claim 6, further comprising a filler disposed between the blade and the at least one profile.
13. The earth removal apparatus of claim 6, wherein the at least one profile includes opposed linear sections thereof, the linear sections offset from one another by an included angle of less than 90 degrees.
14. The earth removal apparatus of claim 6, further including a preform disposed in the drillable body portion, the preform having the at least one profile therein.
15. The earth removal apparatus of claim 6, further including a passage closure member.
16. The earth removal apparatus of claim 6, wherein the profile comprises a notch.
17. The earth removal apparatus of claim 6, further comprising a sleeve.
18. The earth removal apparatus of claim 17, wherein the drillable body portion comprises aluminum.
19. A drill bit, comprising:
a first body portion;

a drillable second body portion;
at least one profile formed integral with at least one of the first body portion and the drillable second body portion, the at least one profile having at least two opposed segments having a discernable orientation;
a cutting member received in the at least one profile and having the discernable orientation; and the discernable orientation including an included angle between the opposed segments of less than ninety degrees.
20. The drill bit of claim 19, wherein:
the cutting member includes a segmented profile having a slot therein;
the at least one profile having a projection engageable with the slot; and wherein the cutting member is positioned in the at least one profile such that the projection is received in the slot.
21. The drill bit of claim 19, wherein the at least one profile extends within the drillable second body portion and the first body portion.
22. The drill bit of claim 19, wherein the at least one profile is machined into the drillable second body portion.
23. The drill bit of claim 19, wherein the first body portion comprises a sleeve.
24. A method of drilling with casing, wherein a drillable drill bit is provided, comprising:
providing a drill bit support at a lower end of the casing;
locating a drillable body portion within the drill bit support;
providing a blade receiving member, integral with at least one of the drill bit support and the body portion, the receiving member including a profile;

positioning a blade having a mating profile on the receiving member;
and using the drill bit to form a wellbore, wherein the profile is adapted to substantially maintain the blade on the blade receiving member during drilling.
25. The method of claim 24, further including configuring the blade with at least a first and a second opposed portion, the first and second portions being positioned, relative to one another, by an included angle of less than ninety degrees.
26. The method of claim 25, wherein providing the blade receiving member comprises machining a preform to provide the profile thereon.
27. The method of claim 25, wherein providing the blade receiving member comprises disposing a preform on at least one of the drill bit support and the body portion to provide the profile thereon.
28. The method of claim 25, further comprising moving at least a portion of the drillable body portion out of the drill bit support.
29. The method of claim 28, further comprising bending the first portion relative to the second to increase the included angle to greater than ninety degrees.
30. A method of completing a wellbore, comprising:
providing an earth removal apparatus at a lower of a drill string, the earth removal apparatus having:
first body portion; and a drillable portion disposed in the first body portion, the drillable portion including a bore;
forming the wellbore;
blocking the bore from fluid communication;
moving the drillable portion relative the first sleeve portion; and re-establishing fluid communication between an inner portion of the earth removal apparatus and the wellbore.
31. The method of claim 30, wherein blocking the bore comprises landing a ball in a ball seat disposed in the bore.
32. The method of claim 31, wherein establishing communication comprises pumping the ball through the ball seat.
33. The method of claim 30, further comprising preventing a fluid in the wellbore from entering the drill string.
34. The method of claim 30, further comprising forming a receiving profile on a bottom surface of the drillable portion.
35. The method of claim 34, further comprising providing a blade with a mating profile formed thereon by engaging receiving profile with the mating profile.
36. The method of claim 35, wherein the receiving profile includes a projection formed thereon.
37. A downhole valve, comprising:
a first body portion;
a bore disposed through the first body portion; and an obstruction member retainer at least partially disposed in the bore, the obstruction member retainer including a first seating surface and a second seating surface adapted to cooperate with an obstruction member that is movable from engagement with the first seating surface into engagement with the second seating surface, wherein the obstruction member retainer and the obstruction member interact to provide selective fluid communication through the bore.
38. The downhole valve of claim 37, further comprising a biasing member disposed inside the bore and below the obstruction member retainer.
39. The downhole valve of claim 37, wherein the obstruction member is urged into engagement with the second seating surface by the biasing member.
40. The downhole valve of claim 37, wherein the body portion comprises aluminum.
41. The downhole valve of claim 37, wherein the obstruction member retainer comprises a flexible material.
42. A downhole valve, comprising:
an obstruction member having a first position engagable with a first seating surface in an obstruction member retainer and a second position engagable with a second seating surface in the obstruction member retainer, and a biasing member biasing the obstruction member to the second position.
43. The downhole valve of claim 42, wherein the obstruction member is passable through the obstruction member retainer to the second position.
CA002516649A 2003-02-27 2004-02-27 Drill shoe Expired - Fee Related CA2516649C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US45043203P 2003-02-27 2003-02-27
US60/450,432 2003-02-27
PCT/US2004/005983 WO2004076804A1 (en) 2003-02-27 2004-02-27 Drill shoe

Publications (2)

Publication Number Publication Date
CA2516649A1 true CA2516649A1 (en) 2004-09-10
CA2516649C CA2516649C (en) 2010-01-19

Family

ID=32927652

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002516649A Expired - Fee Related CA2516649C (en) 2003-02-27 2004-02-27 Drill shoe

Country Status (5)

Country Link
US (1) US7096982B2 (en)
CA (1) CA2516649C (en)
GB (1) GB2414502B (en)
NO (1) NO329173B1 (en)
WO (1) WO2004076804A1 (en)

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US20040226751A1 (en) 2004-11-18
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US7096982B2 (en) 2006-08-29
CA2516649C (en) 2010-01-19
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WO2004076804A1 (en) 2004-09-10
GB2414502A (en) 2005-11-30

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