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1. (WO2019025799) DOWNHOLE APPARATUS AND METHOD
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Pub. No.: WO/2019/025799 International Application No.: PCT/GB2018/052203
Publication Date: 07.02.2019 International Filing Date: 01.08.2018
IPC:
E21B 33/14 (2006.01) ,E21B 36/00 (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
33
Sealing or packing boreholes or wells
10
in the borehole
13
Methods or devices for cementing, for plugging holes, crevices, or the like
14
for cementing casings into boreholes
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
36
Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
Applicants:
DELTATEK OIL TOOLS LIMITED [GB/GB]; Unit 10 Greenrole Trading Estate Howemoss Drive, Dyce Aberdeen Aberdeenshire AB21 0GL, GB
Inventors:
BRUCE, Stephen Edmund; GB
SHAND, David Michael; GB
HORN, Tristam Paul; GB
Agent:
LAWRIE IP LIMITED; The Hub Pacific Quay, Pacific Drive Glasgow Strathclyde G51 1EA, GB
Priority Data:
1712362.101.08.2017GB
1806937.727.04.2018GB
Title (EN) DOWNHOLE APPARATUS AND METHOD
(FR) APPAREIL DE FOND DE TROU ET PROCÉDÉ
Abstract:
(EN) A method of conditioning a well bore featuring an annulus (50) between a bore-lining tubing (20) and a surrounding bore wall (110) comprises pumping conditioning fluid through an inner tubing (10) located within the bore-lining tubing (20) and into a portion of the well bore containing the bore-lining tubing to affect the temperature of the portion of the well bore containing the bore-lining tubing. The annulus (50) between the bore-lining tubing (20) and the surrounding bore wall (110) is at least partially filled with settable material (54). The affected temperature of the portion of the well bore containing the bore-lining tubing influences the setting of the settable material. For example, heating the bore may accelerate setting of the material, while cooling the bore may retard setting of the material.
(FR) Selon l'invention, un procédé de conditionnement d'un puits de forage comportant un espace annulaire (50) entre un tubage de garniture de puits de forage (20) et une paroi de puits de forage environnante (110) consiste à pomper un fluide de conditionnement à travers un tube interne (10) situé à l'intérieur du tubage de garniture de puits de forage (20) et dans une partie du puits de forage contenant le tubage de garniture de puits de forage pour modifier la température de la partie du puits de forage contenant le tube de garniture de puits de forage. L'espace annulaire (50) entre le tube de garniture de puits de forage (20) et la paroi de puits de forage environnante (110) est au moins partiellement rempli de matériau durcissable (54). La température modifiée de la partie du puits de forage contenant le tubage de garniture de puits de forage influence le durcissement du matériau durcissable. Par exemple, le chauffage du puits peut accélérer le durcissement du matériau, tandis que le refroidissement du puits peut retarder le durcissement du matériau.
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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)