DRILLING SYSTEM AND METHOD OF SUBMARINE DRILLING RIG

The present invention discloses a drilling system and method of a submarine drilling rig, relating to the technical field of drilling equipment. The system includes a barge, an umbilical cable, a submarine device and a drilling device; where the barge is loaded with a pneumatic-electric-hydraulic co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MEI, Lianpeng, LI, Kang, LIU, Simiao, ZHANG, Linchuan, PANG, Han, ZHAO, Haiyang, ZOU, Wenqiang, CUI, Junguo, KANG, Yongtian, LIU, Jian, XIAO, Wensheng
Format:	Patent
Sprache:	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 present invention discloses a drilling system and method of a submarine drilling rig, relating to the technical field of drilling equipment. The system includes a barge, an umbilical cable, a submarine device and a drilling device; where the barge is loaded with a pneumatic-electric-hydraulic control device and a mud treatment device which are respectively connected to the submarine device through the umbilical cable; and the submarine device includes a submarine traveling device, a coiled tubing roller, a derrick, a centralized valve seat, a drill bit replacement device, a wellhead device and a casing rack. The centralized valve seat is connected to the umbilical cable for shunting mud, cement and electrical signals conveyed by the umbilical cable. The derrick is installed above the wellhead device, respectively matched with the drill bit replacement device and the casing rack for replacing drill bits and conveying and withdrawing casings. The drilling device is connected to the coiled tubing for performing drilling operations. The present invention has the advantages of low cost, high drilling and production efficiency and high safety.