Patent · US Active

System for geosteering and formation evaluation utilizing near-bit sensors

US10520639B2 · kind B2 · utility

0Cited by

2References

8Claims

0Family size

Assignee

CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

Jinzhou Yang · Dongying, CN
Sheng Zhan · Houston, US
Laiju Han · Shandong, CN
Jinhai Zhao · Houston, US
Hongbing Xiao · Dongying, CN
Weiping Xu · San Diego, US
Zhen Yang · Shandong, CN
Herong Zheng · Houston, US

Key dates

Filing date	Feb 19, 2016
Grant date	Dec 31, 2019
Priority date	—
Expiry date	Aug 5, 2036

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B47/026
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

This disclosure provides a downhole drilling system, which comprises a downhole motor, a universal-joint assembly comprising an upper universal joint and a lower universal and a connecting rod connecting the upper universal joint and the lower universal joint, and a measurement sub. The measurement sub is disposed about the connecting rod and the connecting rod extends through the measurement sub in a longitudinal direction thereof.

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