January 2013 ///

Special Focus

Qualifying coiled-tubing drilling for declining offshore fields

Through a pilot project in the South China Sea, CTD has been proven as an effective, alternative re-development option to access bypassed reserves in mature fields. Early, detailed engineering planning was critical to the project’s success.

Features

A new perspective emerges on Angola’s pre-salt

The 2006 discovery by Petrobras of Tupi field, Santos basin, Brazil, and subsequent related pre-salt discoveries, has increased interest in the pre-salt analogues of Angola’s conjugate Kwanza-Benguela and Namibe basins. Common origin and similar tectonic history suggest that a similar play should exist in Angola. The depth migration of a PGS dual-sensor survey across the Kwanza-Benguela and Namibe area will assist exploration.

Deepwater: High crude oil prices sustain stable production, spur new discoveries

The global oil and gas industry remains bullish on deepwater and ultra-deepwater development as a result of sustained, high oil prices. Activity levels remain high in the traditional development areas of West Africa, Gulf of Mexico, Australia and Brazil.

Fiber-containing sweep fluids validated for ultra-deepwater drilling applications

A stability model for fiber sweeps was developed and theoretically analyzed, which bracketed the selected ranges of base fluid properties suitable for fiber sweep applications. This model was applied to formulate a mechanistic hole-cleaning model. Flow loop test results showed the fiber sweep’s hole-cleaning performance under different conditions and validated the mechanistic model.

Manufacturing considerations for high-thickness, small-diameter deepwater linepipe

To produce linepipe suitable for deepwater applications, a UOE pipe mill must be able to manufacture high-t/D pipe with consistent mechanical and dimensional properties along the entire length. To do this, a mill can use modeling and validation, along with comprehensive data analysis, to ensure that the products being manufactured meet all of the necessary specifications.

Predicting jackup foundation performance

A spud can penetration curve was developed for a 53-m-thick deposit of weak, under-consolidated soil underlain by an older, stronger soil as an aid to safely placing the jackup on location.

QC advances increase confidence in LWD sonic measurements

While the need for real-time LWD acoustic data has expanded frequency, use and types of measurements available with LWD acoustic tools, quality control improvements have lagged behind until now. A new standard in quality control for LWD data has emerged.

Solving the shale gas peak water problem

The author examines what is emerging as a critical issue in shale gas extraction, namely the treatment and disposal of wastewater and solids arising from hydraulic fracturing operations.

Technology review makes the case for public-private research

Since its inception five years ago as part of the U.S. Energy Policy Act of 2005, a public-private research partnership has advanced the development of long-range HSE and resource recovery technologies for ultra-deepwater, unconventional and mature assets that companies otherwise would be unable to justify independently.

Woodford Shale: SCOOP helps advance Oklahoma’s drive for oil

Heralded as the pioneering operator of the Bakken shale, Continental Resources is staking what may become a similar claim in the liquids-rich, southernmost portion of Oklahoma’s Woodford shale.

Columns

Drilling advances

Jim Redden, Contributing Editor

Picking the low-hanging fruit

Energy Issues

William J. Pike, World Oil

Ranking our ecological performance

First Oil

Pramod Kulkarni, World Oil

Dancing in the oil patch

Innovative thinkers

Nell Lukosavich, World Oil

Celestial seismic: 3D interpretation unlocks Martian mysteries

Oil and Gas in the Capitals

Dr. Anas Alhajji, Contributing Editor

Renewable energy and Middle Eastern oil: Fool’s gold?

The Last Barrel

Kurt Abraham, World Oil

Feds fight industry over ocean noise and birds

What’s new in exploration

Nell Lukosavich, World Oil

A picture worth 2x1015 flops

What's new in production

Henry Terrell, Contributing Editor

British shale gas: More holes for Blackpool, Lancashire?

News & Resources

Companies in the news

Companies in the news

Industry at a glance

Industry at a glance

Meetings and Events

Meetings and Events

New products

New products and services

People in industry

People in industry

World of Oil and Gas

World of Oil and Gas

Supplement

Qualifying coiled-tubing drilling for declining offshore fields

Through a pilot project in the South China Sea, CTD has been proven as an effective, alternative re-development option to access bypassed reserves in mature fields. Early, detailed engineering planning was critical to the project’s success.