When they were introduced in the mid-1990s, rotary steerable systems (RSS) represented a step-change in directional drilling. Over the years, continued advances have expanded the operating...

A 25-well batch-casing program in the deepwater Gulf of Mexico (GOM) has exceeded targets around safety and efficiency over a six-month development campaign that logged zero...

A good cement job is the primary barrier for effective zonal isolation and is the standard industry method to protect the wellbore from unwanted and dangerous influxes of...

All the world’s a stage, except when it comes to unconventionals. This is a world of many stages, upwards of 50 in some regions, where fast-developing technologies, innovative...

Since 2008, more than 400 people – from operators, drilling contractors, service companies and regulators – have completed Chevron’s dual-gradient drilling (DGD) training...

The book, being published by IADC later this year, covers all aspects of drilling, including well design and construction, hydraulic optimization, and much more...

Halliburton has released the RezConnect well-testing system for wireless control of downhole drill stem test tools (DST), measurement and analysis of well-test data in real time. Previously, control of DST…

Offshore formations characterized by weakness, shallow-gas hazards, porous sand and other issues present challenges that can result in lost time, cost increases and even...

Exploration wells drilled in the southern flank of the Zagros Range Fold Belt in northern Iraq are subject to major fluid losses. The limestones and dolomitic limestones…

From vertical wells to horizontal wells, the industry’s evolution within the past 10 years has commanded a transformation of the drilling landscape. Subsequently, coiled tubing...