Gamma imaging drill collar

The utility model relates to a gamma imaging drill collar which is characterized in that four sensor cabins are uniformly distributed on the circumference of the middle lower part of a drill collar body, gamma sensors are respectively arranged in inner cavities of the four sensor cabins, and the out...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG QUAN, YANG GUOJIE, CUI HAIWEN, LIU PING, LI ZIHU, XU GUOTAO, XIN SHENGSEN, HUANG WENJUN, ZHANG JINRONG, MA BIAO
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 relates to a gamma imaging drill collar which is characterized in that four sensor cabins are uniformly distributed on the circumference of the middle lower part of a drill collar body, gamma sensors are respectively arranged in inner cavities of the four sensor cabins, and the outer port of each sensor cabin is respectively covered with a sensor cabin cover plate; a control panel cabin and a power panel cabin are symmetrically distributed on the circumference of the upper middle portion of the drill collar body, and a control panel for collecting values of the four gamma sensors is arranged in the control panel cabin and covered with a control panel cabin cover plate. A power panel is arranged in the power panel cabin and is covered with a power panel cabin cover plate;the control panel cabin is connected with the power panel cabin through two horizontal long holes; horizontal long hole pressure-bearing pins are respectively arranged in the two horizontal long holesto realize bidirectional