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1. WO1988001678 - METHOD AND APPARATUS FOR MULTI-STAGE CEMENTING OF A WELL CASING

Publication Number WO/1988/001678
Publication Date 10.03.1988
International Application No. PCT/US1987/002235
International Filing Date 25.08.1987
IPC
E21B 17/07 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
02Couplings; Joints
04between rod and bit, or between rod and rod
07Telescoping joints for varying drill string lengths; Shock absorbers
E21B 17/08 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
02Couplings; Joints
08Casing joints
E21B 33/14 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
14for cementing casings into boreholes
E21B 33/16 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
14for cementing casings into boreholes
16using plugs for isolating cement charge; Plugs therefor
CPC
E21B 17/07
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables;; Casings; Tubings
02Couplings; joints
04between rod ; or the like; and bit or between rod and rod ; or the like
07Telescoping joints for varying drill string lengths; Shock absorbers
E21B 17/08
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables;; Casings; Tubings
02Couplings; joints
08Casing joints
E21B 33/146
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
14for cementing casings into boreholes
146Stage cementing, i.e. discharging cement from casing at different levels
E21B 33/16
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
14for cementing casings into boreholes
16using plugs for isolating cement charge; Plugs therefor
Applicants
  • MASCO INDUSTRIES, INC. [US]/[US]
  • CONOCO, INC. [US]/[US]
Inventors
  • LINDSEY, Hiram, Edward, Jr.
  • ALLAMON, Jerry, P.
Agents
  • ZARINS, Edgar, A.
Priority Data
899,91125.08.1986US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR MULTI-STAGE CEMENTING OF A WELL CASING
(FR) PROCEDE ET APPAREIL DE CIMENTATION EN PLUSIEURS ETAPES DE TUBAGES DE PUITS
Abstract
(EN)
A method and apparatus for multi-stage cementing of a well casing (12) which permits rotation of the upper casing string (14) independent from the lower string (16) during the second or subsequent stage of cementation in order to ensure full displacement of any borehole fluids. The apparatus is readily connected to conventional casing strings and connects the upper and lower strings (14, 16). The swivel (10) includes a lower tubular string portion (18) which is secured to the lower casing string (16) and an upper tubular string portion (20) which is connected to the upper string. These string portions are telescopically engaged such that the upper tubular string portion can be vertically displaced relative to the lower tubular string portion (18). Both portions include longitudinal splines (40) which engage to permit simultaneous rotation of the full string yet can be disengaged by displacing the upper portion in order to provide independent rotation of the upper string (14).
(FR)
Un procédé et un appareil de cimentation en plusieurs étapes du tubage (12) d'un puits permet la mise en rotation de la colonne supérieure de tubage (14) indépendamment de la colonne inférieure (16) pendant la deuxième étape ou une des étapes ultérieures de cimentation, afin d'assurer le refoulement total de tous les fluides du trou de sondage. L'appareil peut être aisément relié à des colonnes conventionnelles de tubage et relie les colonnes supérieure et inférieure (14, 16). Le touret (10) comprend une partie tubulaire inférieure de colonne (18) fixée à la colonne inférieure de tubage (16) et une partie tubulaie supérieure de colonne (20) reliée à la colone supérieure. Ces parties de colonne sont télescopiquement reliées, de sorte que la partie supérieure peut se déplacer verticalement par rapport à la partie inférieure (18). Les deux parties comprenent des cannelures longitudinales (40) enclenchées lorsque toute la colonne doit être simultanément mise en rotation mais susceptibles d'être séparées par un simple déplacement de la partie supérieure de façon à permettre la mise en rotation indépendante de la colonne supérieure (14).
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