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Pub. No.:    WO/2016/050141    International Application No.:    PCT/CN2015/089713
Publication Date: 07.04.2016 International Filing Date: 16.09.2015
E21B 7/08 (2006.01), E21B 44/00 (2006.01), E21B 7/04 (2006.01)
Applicants: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY RESEARCH INSTITUTE [CN/CN]; Sun Haoyu No.827 beiyi Road, dongying district, dongying Dongying, Shandong 257027 (CN)
Inventors: YANG, Jinzhou; (CN).
XIAO, Hongbing; (CN).
WU, Zhonghua; (CN).
ZHU, Jieran; (CN).
HAN, Laiju; (CN).
LI, Zuohui; (CN).
ZHOU, Yanjun; (CN).
TANG, Zhijun; (CN)
Agent: DONGYING SHUANGQIAO PATENT AGENT CO., LTD; Dongying software park C -201, NO.228 nanyi road , Dongcheng district Dongying, Shandong 257091 (CN)
Priority Data:
201410514459. 3 29.09.2014 CN
(ZH) 静态推靠式旋转导向装置
Abstract: front page image
(EN)A static push-type rotary directional device, comprising: a mandrel (12) having a central through-channel, a circumferential groove (12b) being provided on the outside wall of said mandrel (12); an external sleeve (14) provided in said groove (12b) and able to rotate independently; a clutch (18) able to cut-off or to transmit power transmitted from the mandrel to the external sleeve. In the static push-type rotary directional device of the present invention, biasing force can be omitted from the hold, vertical, and horizontal sections without reducing the moment of inertia of the device or the amount of energy stored therein, thereby allowing for effective and stable drilling by the drill bit positioned downstream from the device.
(FR)La présente invention concerne un dispositif directionnel rotatif de type à poussée statique, comprenant : un mandrin comportant un canal traversant central, une rainure circonférentielle étant disposée sur la paroi extérieure dudit mandrin; un manchon externe disposé dans ladite rainure et pouvant tourner indépendamment; un embrayage pouvant interrompre ou transmettre la puissance transmise du mandrin au manchon externe. Dans le dispositif directionnel rotatif de type à poussée statique de la présente invention, une force de sollicitation peut être omise des sections de maintien, verticales et horizontales sans réduire le moment d'inertie du dispositif ni la quantité d'énergie emmagasinée dans celui-ci, permettant ainsi un forage efficace et stable par le trépan positionné en aval du dispositif.
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, IR, IS, JP, KE, KG, KN, KP, KR, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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: Chinese (ZH)
Filing Language: Chinese (ZH)