SG11201407865YA - Systems and methods for managing milling debris - Google Patents

Abstract

(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 16 January 2014 (16.01.2014) WIPOIPCT (10) International Publication Number WO 2014/011162 A1 (51) International Patent Classification: E21B 29/06 (2006.01) E21B 7/08 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2012/046183 11 July 2012 (11.07.2012) English English (71) Applicant (for all designated States except US): HAL­ LIBURTON ENERGY SERVICES, INC. [US/US]; 10200 Bellaire Boulevard, Houston, TX 77072 (US). (72) Inventor; and (75) Inventor/Applicant (for US only)-. SAURER, Dan [US/US]; 4925 Marcus Ave., Addison, TX 75001 (US). (74) Agent: JORDAN, Carey, C.; McDermott Will & Emery LLP, 600 13th Street NW, Washington, DC 20005 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available)'. AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available)'. ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) (54) Title: SYSTEMS AND METHODS FOR MANAGING MILLING DEBRIS CJ © T? i-H o CJ o & FIG. 3b (57) Abstract: Systems and methods of managing cuttings and debris resulting from milling casing a exit are disclosed. An exem­ plary milling system includes a mill arranged within a shroud and configured to translate axially with respect to the shroud once de - tached therefrom, guide block a is coupled to a distal end of the mill and supports the mill while the mill forms the casing exit. A guide support arranged within the shroud defining one or more longitudinal channels configured to accumulate cuttings and debris. The shroud defines a plurality of perforations arranged as first and second axial perforation sets, and a sleeve is arranged therein and defines one or more piston guides that align one or more pistons with either the first or second axial perforation sets, depending on the amount of cuttings and debris.