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New Book Takes Reservoir Focus

Catalog Number: 525-02

While the technology to drill a horizontal well has been with us a long time, asset teams now have the background to consider the geology in planning to maximize the reservoir.

AAPG is offering a new publication this month that helps teams make that next step.

Horizontal Wells: Focus on the Reservoir, edited by Timothy R. Carr, Erik P. Mason and Charles T. Feazel, provides an overview of the new technical approaches required for best use of horizontal and extended-reach technology in different reservoir situations.

The volume, AAPG Methods in Exploration Series No. 14, includes selections from more than 50 papers presented at the 1999 joint AAPG/SPWLA Hedberg research symposium, "International Horizontal and Extended Reach Well Symposium: Focus on the Reservoir."

The book's 16 chapters describe case histories of actual horizontal and extended-reach wells and drilling programs in a variety of geologic settings all over the world.

It also discusses the evolution of technical knowledge required from geoscientists, engineers and managers to develop a detailed and integrated approach to the design and execution of a horizontal well.

Case histories include articles from:

• California.
• The Gulf of Mexico.
• The UK North Sea.
• Alaska.
• Venezuela.
• Wyoming.
• The Michigan Basin.

"Horizontal Wells ... " highlights the changes in our understanding of petroleum reservoirs -- and the type of knowledge required to move beyond the limitations of vertical wells to a horizontal perspective.

The publication is $49 for AAPG members ($74 to nonmembers). Order catalog number: 525-02.

Exploration Series Offers Fresh Look At Well Logs

Methods 13 Gives Geologic Applications

Premise: Geological applications of well logs are as broad as geology itself and petroleum geologists can learn from their colleagues in other disciplines.

Realization: The Geological Applications of Wireline Logs, a 1999 conference sponsored by the Geological Society of London, used that premise as its theme.

Result: The newest volume in AAPG's Methods in Exploration Series, No. 13, includes papers from that conference in a publication that offers good reading as well as a chance for geologists -- even the most veteran -- to get a fresh look at well logs.

The papers were intended to promote cross-fertilization among the three geological constituencies: practicing petroleum geologists, log users in other industries and academic researchers.

The book is divided into three sections (each introduced by an overview paper describing the principles involved). They are:

• Technology and techniques, featuring NMR, real-time measurement, thin-bed analysis and the ability to "geo-steer" the drill stem to a precise target.

• Sedimentology, introduced by John Doveton (University of Kansas), a section that emphasizes rock features that can be determined by using well logs.

  The section also includes papers on resistivity images, paleocurrents and stratigraphy of the oceanic crust.

• Stratigraphy and fractures in the stress field. Covered are fluid flow, fracture networks, crustal features and discussions on underground storage of nuclear waste and development of geothermal energy.

AAPG Methods in Exploration No. 13 is $54 for AAPG members ($79 to nonmembers). Catalog 524-03.