WO1994003700A1 - Tige de forage legere - Google Patents

Tige de forage legere Download PDF

Info

Publication number
WO1994003700A1
WO1994003700A1 PCT/US1992/006516 US9206516W WO9403700A1 WO 1994003700 A1 WO1994003700 A1 WO 1994003700A1 US 9206516 W US9206516 W US 9206516W WO 9403700 A1 WO9403700 A1 WO 9403700A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint
sleeve
section
diameter
pipe
Prior art date
Application number
PCT/US1992/006516
Other languages
English (en)
Inventor
Gerald E. Wilson
Original Assignee
Prideco, 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
Priority to US07/712,529 priority Critical patent/US5148876A/en
Priority claimed from US07/712,529 external-priority patent/US5148876A/en
Application filed by Prideco, Inc. filed Critical Prideco, Inc.
Priority to PCT/US1992/006516 priority patent/WO1994003700A1/fr
Priority to CA002077300A priority patent/CA2077300A1/fr
Publication of WO1994003700A1 publication Critical patent/WO1994003700A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
    • E21B17/1064—Pipes or rods with a relatively rotating sleeve
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor

Definitions

  • This invention relates to lightweight drill pipe for use in a drill string for drilling wells having a well bore with a substantially non-vertical section where the portion of the drill string located in the non-vertical section is in compression and is urged into engagement with the low side of the hole by gravity.
  • the portion of the drill string in the kickoff and horizontal portions of the well bore can exert very little, if any, weight on the bit because most of its weight is exerted against the low side of the well bore.
  • the force exerted on the drill bit by the weight of the non-horizontal portion of the drill string is reduced by the friction between the pipe string and the low side of the well bore.
  • a length of standard pipe becomes a plurality of shorter lengths due to the spacing of sleeves 30 on pipe body 13. This gives the same effect as if the plurality of shorter lengths were joined together by tool joints which, itself, is impractical due to economic considerations.
  • Schuh et al are talking about steel drill pipe. They did not recognize that by using aluminum drill pipe with stress sleeves in the middle and steel tool joints, a satisfactory buckling resistant drill string is available and one that is substantially lighter. Being lighter, there is less friction so the string is able to transmit the required weight on the bit for a greater distance than the steel pipe and thus is able to drill longer horizontal well bores.
  • an object of this invention to provide an aluminum pipe joint for use in drilling highly inclined and horizontal well bores. It is a further object to provide a pipe joint about 30 ft. long having an aluminum tube section, steel tool joints attached to each end of the tube, and a stress sleeve located in the middle with an outside diameter equal to that of the tool joints so that the force required to buckle such aluminum pipe joints is at least equal to that of a 30 ft. joint of steel drill pipe of the same diameter.
  • Figure 1 is a schematic cross-section of the lower portion of a pipe string located in a well bore having a vertical portion, a curved kick-off portion, and a horizontal portion.
  • Figure 2 is a graph showing the weight required to buckle various lengths of 3 " O.D. standard weight (12.31 lbs./ft.) steel drill pipe tubes and 3 ⁇ " O.D. X 2 1 I.D. (6.77 lbs./ft.) aluminum drill pipe tubes.
  • Figure 4 is a view, partly in section and partly in elevation of a stress sleeve attached to the pipe joint of Figure 3.
  • a lightweight drill pipe joint and stress sleeve are disclosed for use in drilling wells having a well bore with a substantial non-vertical section where the portion of the drill string located in the non-vertical section is in compression and is urged into engagement with the low side of the well bore by gravity.
  • An example of such a well is shown in Figure 1 where well bore 10 includes a generally vertical first portion 12, a curved kick- off portion 14, and a generally horizontal third portion 16.
  • casing is set as shown in Figure 1, where casing 22 is shown extending to the top of producing formation 22 where it is cemented in the well bore.
  • kick-off portion 14 of the well bore is drilled using conventional methods until the well bore is headed in a generally horizontal direction. Depending upon the angle the formation makes with the horizontal, it may be desirable that this portion of the well bore follow the direction of the formation, which may or may not require this section of the well bore to be horizontal. It could be several degrees off in either direction.
  • the well is kicked off above the producing zone and casing is then set through a portion of the radius into the producing zone. Then the radius is finished and the horizontal section is drilled.
  • the drill string is made up of drill collars 18 located in vertical section 12 of well bore 10.
  • the drill string is made up of the pipe joints of this invention, indicated by the number 24.
  • Each joint includes tool joint box 25a on the upper end and tool joint pin 25b on the lower end.
  • Stress sleeve 26 is located on aluminum tube 27 about midway between the tool joints.
  • M.W.D. measurement while drilling
  • non-magnetic drill collar 29 At the lower end of the drill string is M.W.D. (measurement while drilling) tool 28, non-magnetic drill collar 29, downhole motor 30, and drill bit 32.
  • the use of a downhole motor and M.W.D. tool is optional. There are advantages to their use, however.
  • the downhole motor eliminates the need to rotate the drill pipe. With a bent sub and the M.W.D. tool, the direction of the hole can be changed without making a trip.
  • the pipe joint of this invention is shown in section in Figure 3.
  • Aluminum tube section 27 of the joint is machined from aluminum tubing to the configuration shown in Figure 3.
  • the tube includes portions 30 and 32 of enlarged diameter located at opposite ends of the tube.
  • section 34 also of enlarged diameter upon which is mounted stress sleeve 36.
  • the rest of the tube, portions 38 and 40 are machined to have an outside diameter equal to a standard joint of drill pipe, such as 3 ⁇ " or 4 ⁇ ".
  • End portions 30 and 32 are machined to have an outside diameter equal to what the ends of the tube would be if they were upset in order to have tool joints 25a and 25b attached to them.
  • the tool joints are shrink fitted onto threads 42 and 44 that are machined on the end of the tube.
  • Each tool joint has an 18° tapered surface 46 for engaging conventional elevators.
  • C is a constant depending upon the angle of separation between the makeup and breakup tongs, where the tongs are at 90° the constant is .053, where the tongs are 180° apart the constant is equal to .038.
  • Ym equals minimum tensile yield stress of pipe in psi
  • LT tong arm length in feet
  • P line pull (load) in lbs.
  • T makeup torque applied to tool joint in lb. feet (PXLT)
  • I/C section modulus of pipe in in. 3
  • the lower end of tube 24 is machined in the same manner to the same dimensions. This provides the upset diameter required for shrink fitting tool joint pin 25b on the end of the pipe. It also allows the pipe to be run with pin up and, of course, adds considerable stiffness to the pipe adjacent the ends by increasing the section modulus of the pipe adjacent its ends.
  • the weight required to buckle a 3 " O.D. x 2 n I.D. aluminum drill pipe tube is 18,600 lbs.
  • wear sleeve 36 which has a diameter approximately equal that of the tool joints, the joint is effectively converted to two 15 ft. lengths of drill pipe and the weight required to buckle the joint increases to 74,300 lbs. This exceeds substantially the buckling strength of a 30 ft. joint of steel drill pipe since it will buckle at 41,000 lbs.
  • the aluminum tube of the pipe joint of this invention provides a greater resistance to buckling than a steel tube while reducing the weight of the joints substantially.
  • the sleeve is assembled onto the tube by cutting the sleeve into two pieces along line 58, then fitting the two pieces together in position so that the flanges engage the grooves and welding the two pieces back together.
  • an epoxy is injected in the space between the stress sleeve and the tube to seal the space from drilling fluid and to anchor the sleeve to the tube so that it rotates with the tube.
  • an alternate embodiment of the stress sleeve is shown. In this case, the sleeve can rotate relative to the tube. In other words, it is a non-rotating sleeve when it is in engagement with the side of the well bore.
  • Sleeve 60 has internal semi-circular grooves 62 and 64 that are connected to the outer surface of the sleeve by holes 66 and 68.
  • Section 70 that is machined on the outer surface of the tube of the joint has annular grooves 72 and 74 that are in alignment with grooves 62 and 64 in the sleeve.
  • the two semi-circular grooves are then filled with balls 76 through openings 66 and 68.
  • holes 66 and 68 are closed by plugs 78 and the sleeve is securely mounted on the outside of upset 70 to freely rotate relative to the upset, when the outer sleeve is held against rotation by the friction between the sleeve and the wall of the well bore.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un raccord en aluminium utilisé dans un train de tiges pour le forage de puits présentant une section pratiquement non verticale, la partie du train de tiges située dans la section non verticale du puits étant en compression et poussée de manière à pénétrer dans la partie inférieure du trou par gravité. Ledit raccord se compose d'un élément tubulaire oblong (27) en aluminium dont la surface extérieure est usinée. Ledit élément tubulaire présente un diamètre extérieur égal au diamètre extérieur d'un raccord de tige de forage standard sur une grande partie de sa longueur. Une section de diamètre supérieur (34) est située à mi-chemin entre les extrémités du raccord, et des parties diamétralement élargies (30, 32) sont situées à proximité de chaque extrémité du raccord. Le diamètre de ces parties est égal au diamètre du renflement externe nécessaire pour des raccords de tiges (25a, 25b). Ces parties permettent également d'augmenter la résistance au flambage du raccord. Des raccords en acier sont fixés à chaque extrémité du tube. La longueur des sections d'extrémité élargies est conçue pour que le raccord ne fléchisse pas pendant l'opération de serrage s'il est fixé à proximité de l'extrémité de la partie élargie sur laquelle se situe le raccord.
PCT/US1992/006516 1991-06-10 1992-08-05 Tige de forage legere WO1994003700A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US07/712,529 US5148876A (en) 1991-06-10 1991-06-10 Lightweight drill pipe
PCT/US1992/006516 WO1994003700A1 (fr) 1991-06-10 1992-08-05 Tige de forage legere
CA002077300A CA2077300A1 (fr) 1991-06-10 1992-09-01 Tige de forage legere

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/712,529 US5148876A (en) 1991-06-10 1991-06-10 Lightweight drill pipe
PCT/US1992/006516 WO1994003700A1 (fr) 1991-06-10 1992-08-05 Tige de forage legere
CA002077300A CA2077300A1 (fr) 1991-06-10 1992-09-01 Tige de forage legere

Publications (1)

Publication Number Publication Date
WO1994003700A1 true WO1994003700A1 (fr) 1994-02-17

Family

ID=27169187

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/006516 WO1994003700A1 (fr) 1991-06-10 1992-08-05 Tige de forage legere

Country Status (1)

Country Link
WO (1) WO1994003700A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059249A2 (fr) * 2000-02-10 2001-08-16 Stable Services Limited Appareil de protection et de reduction du couple d'une tige de forage
ITUD20110163A1 (it) * 2011-10-14 2013-04-15 Scaglia Spa Asta di trivellazione
CN103775002A (zh) * 2012-10-22 2014-05-07 宝山钢铁股份有限公司 一种大规格钻杆及其制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934945A (en) * 1974-10-03 1976-01-27 Ingersoll-Rand Company Drill rod stabilization means
US4240652A (en) * 1979-05-24 1980-12-23 Reynolds Metals Company Lightweight drill rod
US4416476A (en) * 1980-09-17 1983-11-22 Oncor Corporation Intermediate weight drill stem member
US4674580A (en) * 1985-08-27 1987-06-23 Atlantic Richfield Company Means for reducing bending stresses in drill pipe
US4987961A (en) * 1990-01-04 1991-01-29 Mcneely Jr Branch M Drill stem arrangement and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934945A (en) * 1974-10-03 1976-01-27 Ingersoll-Rand Company Drill rod stabilization means
US4240652A (en) * 1979-05-24 1980-12-23 Reynolds Metals Company Lightweight drill rod
US4416476A (en) * 1980-09-17 1983-11-22 Oncor Corporation Intermediate weight drill stem member
US4674580A (en) * 1985-08-27 1987-06-23 Atlantic Richfield Company Means for reducing bending stresses in drill pipe
US4987961A (en) * 1990-01-04 1991-01-29 Mcneely Jr Branch M Drill stem arrangement and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059249A2 (fr) * 2000-02-10 2001-08-16 Stable Services Limited Appareil de protection et de reduction du couple d'une tige de forage
WO2001059249A3 (fr) * 2000-02-10 2002-01-31 Stable Services Ltd Appareil de protection et de reduction du couple d'une tige de forage
ITUD20110163A1 (it) * 2011-10-14 2013-04-15 Scaglia Spa Asta di trivellazione
CN103775002A (zh) * 2012-10-22 2014-05-07 宝山钢铁股份有限公司 一种大规格钻杆及其制造方法

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