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1. (WO2013116090) PASSIVE OFFSHORE TENSION COMPENSATOR ASSEMBLY
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/116090 International Application No.: PCT/US2013/023064
Publication Date: 08.08.2013 International Filing Date: 25.01.2013
IPC:
E21B 19/09 (2006.01) ,E21B 17/07 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
19
Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
08
Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
09
specially adapted for drilling underwater formations from a floating support using heave compensators supporting the drill string
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
17
Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
02
Couplings; Joints
04
between rod and bit, or between rod and rod
07
Telescoping joints for varying drill string lengths; Shock absorbers
Applicants: SCHLUMBERGER CANADA LIMITED[CA/CA]; 525-3rd Avenue Southwest Calgary, Alberta T2P-0G4, CA (CA)
SERVICES PETROLIERS SCHLUMBERGER[FR/FR]; 42 rue Saint Dominique F-75007 Paris, FR (FR)
SCHLUMBERGER HOLDINGS LIMITED[GB/GB]; P.O. Box 71 Craigmuir Chambers, Road Town Tortola 1110, VG (GB, JP, NL)
SCHLUMBERGER TECHNOLOGY B.V.[NL/NL]; Parkstraat 83-89m NL-2514 JG The Hague, NL (AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BN, BR, BW, BY, BZ, CF, CG, CH, CI, CL, CM, CO, CR, CU, CY, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GA, GD, GE, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IS, IT, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, NE, NI, NO, NZ, OM, PA, PE, PG, PL, PT, QA, RO, RS, RU, RW, SC, SE, SG, SI, SK, SL, SM, SN, ST, SV, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, ZA, ZM, ZW)
PRAD RESEARCH AND DEVELOPMENT LIMITED[GB/GB]; P.O. Box 71 Craigmuir Chambers, Road Town Tortola 1110, VG (AE, AO, BF, BH, BJ, CF, CG, CI, CM, CN, GA, GH, GN, GQ, GW, IN, LY, MA, ML, MR, MZ, NA, NE, NG, PH, SD, SN, SY, TD, TG, VN)
SCHLUMBERGER TECHNOLOGY CORPORATION[US/US]; 300 Schlumberger Drive Sugar Land, Texas 77478, US (US)
Inventors: RYTLEWSKI, Gary L.; US
MANDROU, Laure; US
NELLESSEN JR., Peter; US
Agent: PETERSON, Jeffery R.; 10001 Richmond Avenue IP Administration Center of Excellence Room 4720 Houston, Texas 77042, US
Priority Data:
13/672,34708.11.2012US
61/593,15831.01.2012US
Title (EN) PASSIVE OFFSHORE TENSION COMPENSATOR ASSEMBLY
(FR) ENSEMBLE COMPENSATEUR PASSIF DE TENSION EN MER
Abstract:
(EN) A tensions compensator assembly for a slip type joint in an offshore work string. The assembly includes a chamber at the joint which is constructed in a manner to offset or minimize a pressure differential in a production channel that runs through the work string. Thus, potentially very high pressures running through the string are less apt to prematurely force actuation and expansiveness of the slip joint. Rather, the expansive movement of the joint is more properly responsive to heave, changes in offshore platform elevation and other outside forces of structural concern.
(FR) La présente invention concerne un ensemble compensateur de tensions pour un joint de type coulissant dans une rame de production en mer. L'ensemble comprend une chambre au joint qui est construite de manière à compenser ou minimiser une pression différentielle dans un canal de production qui passe à travers la rame de production. Ainsi, des pressions potentiellement très élevées qui passent à travers la rame sont moins disposées à forcer l'actionnement de façon prématurée et la qualité expansive du joint coulissant. Plutôt, le mouvement expansif du joint répond plus correctement à la levée, à des changements d'élévation de plateforme en mer et à d'autres forces extérieures de question structurelle.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)