Patent · US Active

System and method for determining pressure transition zones

US9157316B2 · kind B2 · utility

1Cited by

6References

19Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Stefan Wessling · Sulingen, DE
Xiaowei Wang · Shizuoka, JP
Anne Bartetzko · Celle, DE
Jianyong Pei · Katy, US

Key dates

Filing date	Jan 27, 2012
Grant date	Oct 13, 2015
Priority date	—
Expiry date	Apr 26, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B49/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method and apparatus for estimating a pressure transition zone in a borehole is disclosed. A parameter indicative of formation fluid pressure at a plurality of borehole depths is measured. A global trend of the parameter is determined over a first depth interval and a local trend of the parameter is determined over a second depth interval. A relation is determined between the global trend and the local trend, and the pressure transition zone is determined from the determined relation between the determined global trend and the determined local trend.

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