WorldOil

Casing drilling eliminates lost returns

Casing drilling optimizes pre-drill program’s drilling efficiency

Drilling in multiple surface casing strings at Peng Lai Field saved time and money.

Cross-linked polymer-based mud pill applied in MPD operations

A fluid pressure transmission pill met several drilling challenges in an HPHT environment, including successfully balancing reservoir pressure.

Issues with compensated neutron log response

Always remember the basics with log responses. This tutorial reminds us that, despite evolutionary improvements, log responses are often misunderstood.

Kick handling with losses in an HPHT environment

In HPHT or deepwater operations, differences in shale and sand fracture gradients can result in kicks with simultaneous gains and losses. Options for handling these scenarios are available, but must be applied in a logical sequence.

Modeling and inversion of cross-dipole full waveforms for azimuthal anisotropy

Lack of quality control techniques for cross-dipole sonic inversion meant that improvement was needed to advance the state-of-the-art for this application. 

Optimization of CT interventions in extended reach wells

 In water injection wells in Saudi Arabia, techniques used to extend the reach of coiled tubing stimulations included use of nitrified fluids and viscoelastic surfactant friction reducer, as well as optimizing the pull-test frequency in open hole.

Recent advances in well logging and formation evaluation

Developments include improvements in wireline depth accuracy; new methods for tool deployment; casing evaluation tools; LWD batteries and telemetry systems; azimuthal-density imaging; and digital-outcrop modeling.

Editorial comment

Frankenslime

Another good year for new deepwater fields

The exploration industry looks to have had an excellent year for new field discoveries in 2008. This success owes much to drilling in 400 m of water or more.

Drilling advances

Heroes of the oil patch

Exploration discoveries

Exploration discoveries

Oil and Gas in the Capitals

Turning crisis into opportunity in Brazil

What’s new in exploration

What’s new in exploration

What’s new in production

Industry at a glance

Meetings and Events

Meetings and Events

New products

New Products

People in industry

People in the Industry

World of Oil

Chavez wins referendum; US oil and gas leases canceled and pulled from sale; Iran signs new Turkmen gas deal; Italy suspends Total Italia’s Gorgoglione project