Patent · US Active

Bottom hole assembly retrieval for casing-while-drilling operations using a tethered float valve

US9464483B2 · kind B2 · utility

0Cited by

14References

20Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Ankit Purohit · Damoh, IN
Anand Bhagwat Kedare · Jamkhed, IN
Bhargav Gajji · Pune, IN
Sanjay Sawant · Jamkhed, IN

Key dates

Filing date	Dec 13, 2013
Grant date	Oct 11, 2016
Priority date	—
Expiry date	Jan 11, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B34/10
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A bottom hole assembly for a casing-while-drilling operation utilizes a tethered float valve to retrieve the bottom hole assembly after the casing string has been positioned at a desired wellbore depth.

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