Patent · US Active

Fluid pressure measuring device for measurement-while-drilling tool

US11047226B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

Institute of Geology and Geophysics, Chinese Academy of Sciences · CN

Inventors

Jiansheng Du · Beijing, CN
Qingyun Di · Beijing, CN
Zili Wang · Beijing, CN
Wenxuan Chen · Beijing, CN
Xinzhen He · Beijing, CN
Yongyou Yang · Beijing, CN

Key dates

Filing date	Jul 19, 2019
Grant date	Jun 29, 2021
Priority date	—
Expiry date	Dec 17, 2039

Classification

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

Abstract

The disclosure relates to a fluid pressure measuring device for a measurement-while-drilling tool, which including a first sensor assembly (1), a second sensor assembly (2) and a sealing member (3), wherein a mounting groove (5) is formed on an outer side wall of a drill collar (4) of a measurement-while-drilling tool; the sealing member (3) is fixedly mounted on the mounting groove (5); a first liquid inlet hole (7) is formed in the sealing member (3); a second liquid inlet hole (9) communicated with a center flow channel (8) of the drill collar (4) is formed in the mounting groove (5); a liquid inlet end of the first sensor assembly (1) is communicated with the first liquid inlet hole (7); and a liquid inlet end of the second sensor assembly (2) is communicated with the second liquid inlet hole (9).

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