MX9708253A - Adaptador para sarta de varillas de perforacion. - Google Patents

Adaptador para sarta de varillas de perforacion.

Info

Publication number
MX9708253A
MX9708253A MX9708253A MX9708253A MX9708253A MX 9708253 A MX9708253 A MX 9708253A MX 9708253 A MX9708253 A MX 9708253A MX 9708253 A MX9708253 A MX 9708253A MX 9708253 A MX9708253 A MX 9708253A
Authority
MX
Mexico
Prior art keywords
fitting
drill string
inner section
friction
minimise
Prior art date
Application number
MX9708253A
Other languages
English (en)
Other versions
MXPA97008253A (es
Inventor
Geoffrey Neil Murray
Denis Robert Fernandes
Original Assignee
Weatherford U S L P
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 U S L P filed Critical Weatherford U S L P
Publication of MX9708253A publication Critical patent/MX9708253A/es
Publication of MXPA97008253A publication Critical patent/MXPA97008253A/es

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
    • 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 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1042—Elastomer protector or centering means
    • E21B17/105—Elastomer protector or centering means split type
    • 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve

Abstract

Un adaptador para reducir la friccion entre una sarta de varillas de perforacion y la pared de un pozo. En un primer aspecto el adaptador tiene rebajos (6) provistos a lo largo de la perforacion central del adaptador para lubricar la interfaz entre el adaptador y la sarta de perforacion para minimizar la friccion. En un segundo aspecto, se proporciona un adaptador en una sarta de varillas de perforacion que tiene medios de rodillos girables (21) que pueden girar alrededor de un punto de rotacion (23) para minimizar tanto la friccion axial como la rotacional. De acuerdo a un tercer aspecto, el adaptador comprende una seccion interior (30) asegurada a una tubería de perforacion (35) u otro adaptador y una seccion exterior 31 que puede girar alrededor de la seccion interiores (30). Preferiblemente, se proporciona un cojinete sellado (36, 42-47, 37, 38) entre la seccion interior (30) y la seccion exterior (31).
MXPA/A/1997/008253A 1995-04-27 1997-10-27 Adaptador para sarta de varillas de perforacion MXPA97008253A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ272003 1995-04-27
NZ27200395 1995-04-27

Publications (2)

Publication Number Publication Date
MX9708253A true MX9708253A (es) 1998-06-28
MXPA97008253A MXPA97008253A (es) 1998-10-30

Family

ID=

Also Published As

Publication number Publication date
WO1996034173A1 (en) 1996-10-31
DE69628749D1 (de) 2003-07-24
NO974922L (no) 1997-12-05
EP1318269A2 (en) 2003-06-11
EP0824629A4 (en) 2000-03-29
US6209667B1 (en) 2001-04-03
EP1318269A3 (en) 2003-09-24
EP0824629B1 (en) 2003-06-18
AU710393B2 (en) 1999-09-16
EP0824629A1 (en) 1998-02-25
EA199700342A1 (ru) 1998-06-25
DE69628749T2 (de) 2004-04-29
BR9608227A (pt) 1998-12-29
NZ306581A (en) 1999-07-29
AU5517796A (en) 1996-11-18
DE69635360D1 (de) 2005-12-01
NO318106B1 (no) 2005-01-31
NO974922D0 (no) 1997-10-24
EP1318269B1 (en) 2005-10-26
EA000513B1 (ru) 1999-10-28
DE69635360T2 (de) 2006-07-27
ATE243296T1 (de) 2003-07-15
NZ335944A (en) 2000-09-29

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