Non -standard 196. 85mm buttress thread casing pipe connects

The utility model provides a non -standard 196.85mm buttress thread casing pipe connects, include: cover outside of tubes screwed joint (1) and casing coupling (2), being provided with external screw thread trapezoidal partially on the cover outside of tubes screwed joint (1), being provided with th...

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Bibliographische Detailangaben
Hauptverfasser:	Fan Xinghui, Yang Xiangtong, Yang Chengxin, Geng Hailong, Xie Junfeng, Lyu Shuanlu, Li Ning, Liu Rui, Qin Hongde, Teng Xueqing, Zhu Jinzhi, Li Xiaochun, Peng Baitao, Kang Yanjun, Le Faguo, Jia Guoyu
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	The utility model provides a non -standard 196.85mm buttress thread casing pipe connects, include: cover outside of tubes screwed joint (1) and casing coupling (2), being provided with external screw thread trapezoidal partially on the cover outside of tubes screwed joint (1), being provided with the internal thread trapezoidal partially that matees with external screw thread trapezoidal partially on casing coupling (2), cover outside of tubes screwed joint (1) and casing coupling (2) are through external screw thread and interior thread?connection, wherein, external screw thread main aspects diameter D4 is 197.26mm, and outer pitch diameter E7 is 195.682mm, is the external diameter W of casing coupling (2) 215.90 219.47mm the minimum length NL of casing coupling (2) is 264.32mm, the tip of casing coupling (2) is provided with the bore hole, and bore hole diameter Q is 200.41mm. The utility model provides a non -standard 196.85mm buttress thread casing pipe connects, reasonable in design, convenient to use si