TELESCOPING DERRICK

A telescoping four-sided drilling derrick (20) and method or erection that i s to be positioned on a drill floor (F) over a well bore and is capable of withstanding severely adverse weather, environmental or geologic conditions. The derrick (20) is in several sections and includes a bottom section (...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	DESAI, VINOD
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES CRANES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FENCING FIXED CONSTRUCTIONS HAULING HOISTING LIFTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES MASTS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS SWIMMING OR SPLASH BATHS OR POOLS TELEPHONIC COMMUNICATION TENTS OR CANOPIES, IN GENERAL TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A telescoping four-sided drilling derrick (20) and method or erection that i s to be positioned on a drill floor (F) over a well bore and is capable of withstanding severely adverse weather, environmental or geologic conditions. The derrick (20) is in several sections and includes a bottom section (22), a top section (30) and at least one intermediate section (26, 28) all for superpositioning over the bottom section (22) to form a vertical four-sided tower. Each of the sections is composed of vertical members positioned in each of the four corners (38a-38d) of each section to thereby form a total of four faces (40a-40d) around the perimeter of each section. A window (46) is one face sufficiently large to receive consecutively therebelow at least one section. In turn each of the intermediate sections (26, 28) is inserted within the bottom section (22) for subsequent serial telescopic raising of the intermediate sections (26, 28).