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High Pressure Jet Drilling

Project Motivation

To develop deep water fields, it will be necessary to drill

directional wells from fixed platforms. In Campos Basin, at

water depth of 2000 to 3000 meters, the sediment cover is

often thin, sometimes less than 500 m. It means we need to

drill medium and short radius directional wells. Conventional

drilling systems sometimes presents problems to drill such

wells. High pressure jet drilling system is one alternative

because requires low or none weight on bit and increases

rate of penetration.

Project Objectives

Make available an alternative system, based on high pressure

jet, that allows drilling and complet ion of medium and short

radius directional wells in deep water with a thin sediment

cover.

Project Status

Three systems were identified : Petrophysics, Flowdril

and Kongsberg.

In January 1998, an workshop happened in Macaand R io

with the participation of Mr. Wade Dickinson, president of

Petrophysics, and several engineers of Petrobras. It was

decided to plan a test of Petrophysics system in an well

onshore, for instance in Amazonas, until the end of 1998. We

are nego tiating costs w ith Petrophysics.

A multiclient project was proposed to be done by Rogaland

Research, in Norway. The Flowdril and Kongsberg systems

For further information, please contact:

Joo Carlos R. Plcido

CENPES - PETROBRAS R&D CENTER

Cidade Universitria, Qd.07 - Ilha do Fundo

21.949-900 - Rio de Janeiro - Brazil

Phone: 55 21 598 6575

Fax: 55 21 598 6795

e-mail: jcrp@cenpes.petrobras.com.br