Patent · US Active

Sampling-by-pushing system and setting method thereof

US11072981B2 · kind B2 · utility

0Cited by

0References

11Claims

0Family size

Assignee

CHINA OILFIELD SERVICES LIMITED · CN

Inventors

Minggao Zhou · Beijing, CN
Yongren Feng · Laishui, CN
Xingfang Wu · Laishui, CN
Yanmin ZHOU · Langfang, CN
Yongzeng Xue · Laishui, CN

Key dates

Filing date	Sep 20, 2019
Grant date	Jul 27, 2021
Priority date	—
Expiry date	Oct 22, 2039

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B47/06
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A sampling-by-pushing system includes a setting-by-pushing mechanism and a centralizing device. The setting-by-pushing mechanism is connected with the centralizing device through a connecting pipe, and is configured to be set and sealed in a borehole. The centralizing device includes a base body and a retractable support arm arranged on the base body. The support arm is configured to be in contact with the wall of the borehole so as to position the setting-by-pushing mechanism in the center of the borehole.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.