Monitoring and control downhole drag and torque is a eternal research topic in horizontal
drilling technique, but the theory and experience are still in the exploring stage. In this work …

A new formation-tester-while-drilling tool (FTWD) introduced to the Chirag field, in the
Caspian Sea, in December 2003 has resulted in significant time savings. As of 1 December …

Recently the oil and gas drilling industry has become increasingly interested in drilling
dynamics and vibration as a cause of reduced drilling performance, downhole tool and drill …

Well control events are predominantly detected through surface measurements. Measuring
an increase in the 'closed loop'mud circulation system, a standpipe pressure decrease or …

After a well or a well interval has been drilled, zones of interest are often tested to determine
various formation properties such as permeability, fluid type, fluid quality, formation …

The intelligent drilling system (IDS), based on the 57,000 bits per second and bi-directional
wired drill pipe telemetry, has been under experimental trial in the industry in a variety of …

This paper presents the positive results of the first deployment of wired drill pipe (WDP)
technology and along-string measurement (ASM) tools in drilling operations in the Adriatic …

Measurements made with wireline logs are often used as the reference for well depth.
However, differences are usually noted between wireline depth (" Logger's Depth") and …

One of the advantages of having a dual string completion is the option to develop and
produce more than one reservoir simultaneously, whereas there are considerable …