Intelligent core taking tool while drilling test

The invention belong to the field of petroleum geology drilling equipment, and in particular, relates to an intelligent core taking tool while drilling test. The tool comprises an upper joint, a shortconnector, an outer cylinder, a drill bit, an inner cylinder and a rock core jaw, and further compri...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ZHAO JINGJUN, LIANG BAOCHANG, XU CHUGANG, WANG SHUAI, WANG JIA, YAN YUJIE, ZENG ZHAOQI
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention belong to the field of petroleum geology drilling equipment, and in particular, relates to an intelligent core taking tool while drilling test. The tool comprises an upper joint, a shortconnector, an outer cylinder, a drill bit, an inner cylinder and a rock core jaw, and further comprises a main piston, a suspension bearing module, a core cutting ball and a core taking ball; the main piston, the suspension bearing module, the inner cylinder and the rock core jaw are fixedly connected in a core taking tool outer shell through threads in sequence from top to bottom; a sealing surface matched with the core cutting ball is arranged at the upper end of the main piston; the side surface of the main piston is fixedly connected with the upper joint through a pin; and the structure of the suspension bearing module comprises an upper connecting body, a pressing cap A, a lower connecting body, a pressing cap B and a bearing, wherein the upper connecting body is connected with the main piston. A liquid pass