Patent · US Active

Auxiliary feeding device for flexible pipe of radial horizontal well

US10787886B2 · kind B2 · utility

0Cited by

2References

12Claims

0Family size

Assignee

China University of Petroleum—Beijing · CN

Inventors

Zhongwei Huang · Beijing, CN
Jingbin LI · Beijing, CN
Jilei NIU · Beijing, CN
Gensheng Li · Beijing, CN
Zhen Cheng · 红钢城街道, CN

Key dates

Filing date	May 12, 2017
Grant date	Sep 29, 2020
Priority date	—
Expiry date	Jul 18, 2037

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B7/18
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An auxiliary feeding device for a flexible pipe of a radial horizontal well, comprising an oil pipe, a steering gear connected to the oil pipe at a lower opening, and two impellers. Each of the impellers comprises an impeller shaft, a barrel body and at least three blades fixed outside the barrel body and provided at a top thereof with a notch, where the two impeller shafts are parallel to each other. The two impellers are parallel and are synchronously rotated, and the notches on two sides of the inlet are in one-to-one correspondence relation to form a holding passage that can clamp the flexible pipe.

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