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1. (WO2019004834) DOWNHOLE TRACTOR COMPRISING AN IMPROVED HYDRAULIC SYSTEM
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Pub. No.: WO/2019/004834 International Application No.: PCT/NO2018/050151
Publication Date: 03.01.2019 International Filing Date: 12.06.2018
IPC:
E21B 23/04 (2006.01) ,E21B 23/00 (2006.01) ,E21B 23/14 (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
23
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
04
operated by fluid means, e.g. actuated by explosion
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
23
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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
23
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
14
for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
Applicants:
ALTUS INTERVENTION (TECHNOLOGIES) AS [NO/NO]; Moseidveien 35 4033 Stavanger, NO
Inventors:
MCINALLY, Gerald; NO
Agent:
HÅMSØ PATENTBYRÅ AS; P.O. Box 171 4301 Sandnes, NO
Priority Data:
2017108330.06.2017NO
Title (EN) DOWNHOLE TRACTOR COMPRISING AN IMPROVED HYDRAULIC SYSTEM
(FR) TRACTEUR DE FOND DE TROU COMPRENANT UN SYSTÈME HYDRAULIQUE AMÉLIORÉ
Abstract:
(EN) The invention relates to a downhole tractor (10) comprising a hydraulic system (10s) for driving a plurality of hydraulic cylinders (160-1..160-4) and a plurality of hydraulic motors (170-1..170-4). The hydraulic system (10s) comprises: i) a hydraulic power pack (100a); ii) a first hydraulic supply line (200) for supplying hydraulic fluid to the plurality of hydraulic cylinders (160-1..160-4); iii) a second hydraulic supply line (300) for supplying the hydrau- lic fluid to the plurality of hydraulic motors (160-1..160-4); iv) a valve section (400) com- prising respective parts (200a, 300a) of said hydraulic supply line (200, 300), and an inlet (401) for receiving the hydraulic fluid, and a set of valves (V3..V6, PCV1, PCV2, 115, 116), and v) a hydraulic bypass supply line (250) coupled to the hydraulic power pack (100a) for supplying the hydraulic fluid directly to the inlet (401) of the valve section (400) bypassing at least part of the first hydraulic supply line (200) and the second hydraulic supply line (300). The first and the second hydraulic supply line (200, 300) comprises two parts (200-1, 200-2, 300-1, 300-2) that are connected via the valve section. Each respec- tive part (200-1, 200-2, 300-1, 300-2) is connected to a respective sub-set of the plurality of hydraulic components (160-1..160-4, 170-1..170-4). The valve section (400) is config- ured for individually controlling flow of the hydraulic fluid into each respective part (200-1, 200-2, 300-1, 300-2) of the hydraulic supply lines (200, 300). The downhole tractor in ac- cordance with the invention enables a much higher level of control than the downhole tractors of the prior art.
(FR) L'invention concerne un tracteur de fond de trou (10) comprenant un système hydraulique (10s) pour entraîner une pluralité de cylindres hydrauliques (160-1..160-4) et une pluralité de moteurs hydrauliques (170-1..170-4). Le système hydraulique (10s) comprend: i) un bloc d'alimentation hydraulique (100a); ii) une première conduite d'alimentation hydraulique (200) pour fournir un fluide hydraulique à la pluralité de cylindres hydrauliques (160-1..160-4); iii) une seconde conduite d'alimentation hydraulique (300) pour fournir le fluide hydraulique à la pluralité de moteurs hydrauliques (160-1..160-4); iv) une section de vanne (400) comprenant des parties respectives (200a, 300a) de ladite conduite d'alimentation hydraulique (200, 300), et une entrée (401) destinée à recevoir le fluide hydraulique, et un ensemble de vannes (V3..V6, PCV1, PCV2, 115, 116), et v) une conduite d'alimentation de dérivation hydraulique (250) couplée au bloc d'alimentation hydraulique (100a) pour fournir le fluide hydraulique directement à l'entrée (401) de la section de vanne (400) contournant au moins une partie de la première conduite d'alimentation hydraulique (200) et de la seconde conduite d'alimentation hydraulique (300). Les première et seconde conduites d'alimentation hydraulique (200, 300) comprennent deux parties (200-1, 200-2, 300-1, 300-2) qui sont reliées par l'intermédiaire de la section de vanne. Chaque pièce respective (200-1, 200-2, 300-1, 300-2) est reliée à un sous-ensemble respectif de la pluralité de composants hydrauliques (160-1..160-4, 170-1..170-4). La section de vanne (400) est conçue pour commander individuellement l'écoulement du fluide hydraulique dans chaque partie respective (200-1, 200-2, 300-1, 300-2) des conduites d'alimentation hydraulique (200, 300). Le tracteur de fond de trou selon l'invention permet un niveau de commande beaucoup plus élevé que les tracteurs de fond de trou de l'état de la technique.
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, SA, 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, ST, 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)