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Design and Appraisal of Hydraulic Fractures. Org/documents/plugin_documents/zambiagroundwater.pdf (accessed 6 July 2012). The length of the horizontal lateral is 7,000 feet. In order to simulate the hydraulic fractures, we refined the grid blocks in a planar direction perpendicular to the wellbore. Figure 3 demonstrates an example of planar hydraulic fracturing design.

Using an interdisciplinary approach, Design and Appraisal of Hydraulic Fractures offers a basic yet comprehensive introduction to the completion and reservoir engineering aspects of hydraulic fracture stimulation. The book is divided into three sections. Section 1 covers the design and placement of a hydraulic fracture stimulation; topics include the basics of the hydraulic fracturing process, stress issues, fracture geometry, controls on generated length and width, fluid and proppant selection, quality control, and quality assurance. Section 2 introduces the use of dynamic data to characterize the in-place hydraulic fracture, outlining the methods of pressure-transient analysis for both pressure-drawdown and pressure-buildup tests. The discussion includes effective wellbore radius, effective fracture half-length, equivalent skin, and their relationships; simulated and field examples illustrate the basic analysis procedure and many common pitfalls. The final section covers the prediction of long-term rate performance and recoverable volumes. Three approaches are discussed: rate-decline type curves, analytical and semianalytical methods, and numerical simulation. Mp3 zaskia gotik.

Essential elements are given for each and illustrated with field examples. Design and Appraisal of Hydraulic Fractures is a valuable reference for all members of the geotechnical and surface engineering communities who need to understand the important issues around and the full impact of hydraulic fracture stimulation on well performance. Jonesbegan his career in 1982 at Amoco's Tulsa Research Center, while completing a PhD degree in petroleum engineering at the University of Tulsa. His work at Amoco focused on problems in well testing, gas reservoir engineering, hydraulic fracture evaluation, petrophysics, and reservoir simulation. Since 1998, Jones has divided his time working for BP Trinidad in Port of Spain and BP Canada in Calgary, executing various aspects of a number of different gas-field developments. Presently, he holds the position of reservoir engineering technical advisor in BP Canada's Calgary office.

Hydraulic

Jones is the coauthor of 25 papers and has served on a number of SPE technical committees. Britt is a hydraulic fracturing consultant for NSI Technologies and manager of its rock mechanics lab at the University of Tulsa. His experience includes the optimization, design, and execution of fracture stimulations and integrated field studies throughout the world. Before joining NSI, Britt worked for Amoco Production Company for nearly 20 years; during the last 6 years with Amoco, he was a fracturing team leader at Amoco’s Technology Center in Tulsa. Britt has written more than 25 technical papers on reservoir management, pressure transient analysis, and hydraulic fracturing. He holds a BS degree in geological engineering and a professional degree in petroleum engineering from the Missouri School of Science and Technology, where he is an adjunct professor in the Petroleum Engineering Department and a member of the university and Industry Advisory boards.

Britt has served as an SPE Distinguished Lecturer, a member of the JPT Editorial Committee, and on numerous SPE Forum Series committees.

Abstract Interpretation of logs from an exploration pilot well and a lateral drilled from the pilot in the Late Cretaceous Natih formation in the Sultanate of Oman was used for designing a multistage hydraulic fracturing treatment. A high-tier logging suite including borehole image, advanced dipole sonic, geochemical, and triple combo data was acquired in both wellbores. The objective of the pilot hole was to select the best landing point in terms of reservoir quality (RQ) and completion quality (CQ) so that a horizontal well could be drilled and multistage stimulations performed in the organic-rich Natih B source rock.

In contrast to much of North America, significant tectonic forces are frequently present in this region. The geomechanical setting might thus strongly affect hydraulic fracture initiation, propagation and proppant placement. It therefore plays an important role in lateral landing point selection. Borehole images, integrated with petrophysical and geomechanical log properties, were used to identify the optimum landing zone. Breakouts as well as longitudinal and transverse drilling-induced fractures were identified on the pilot borehole images over the Natih Formation, indicating a large horizontal stress anisotropy and a compressional tectonic setting. An interval from which vertical hydraulic fractures would initiate at low initiation pressure and grow vertically to contact intervals with good RQ was selected as the target lateral landing point. Image and dipole sonic data were acquired in the horizontal well, and both longitudinal and transverse induced fractures were identified.

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