Horizontal drilling proves zone-specific application in Iranian carbonate reservoirs

The National Iranian South Oil Co., Ahwaz, Iran, has applied horizontal drilling technology to the country's carbonate and sandstone reservoirs to increase recoverable reserves, well productivity, and production efficiency. A review of well productivity and production history, as well as drilli...

Full description

Saved in:
Bibliographic Details
Published inThe Oil & gas journal Vol. 100; no. 50; p. 43
Main Author Jamshidnezhad, Mohammad
Format Magazine Article
LanguageEnglish
Published Nashville Endeavor Business Media 09.12.2002
Subjects
Alliances
Drilling
Efficiency
Engineers
Enhanced oil recovery
Fractured reservoirs
Geology
Horizontal wells
Hydraulics
Natural flow
Natural gas reserves
Oil exploration
Oil fields
Oil recovery
Oil reserves
Permeability
Petroleum engineering
Productivity
Reservoirs
Sandstone
Iran
Online AccessGet full text

Cover

More Information
Summary:The National Iranian South Oil Co., Ahwaz, Iran, has applied horizontal drilling technology to the country's carbonate and sandstone reservoirs to increase recoverable reserves, well productivity, and production efficiency. A review of well productivity and production history, as well as drilling related events, indicated that horizontal wells are more appropriate for the upper reservoir. Vertical wells should remain the completion of choice for the lower reservoir, II(sub)2. When reviewing reservoirs that are under natural depletion and natural flow, engineers must consider all aspects of well productivity, related not only to the wellbore configuration within the reservoir, productivity index, and formation damage but also wellbore hydraulics and possible use of artificial lift.
Bibliography:content type line 24
ObjectType-Feature-1
SourceType-Magazines-1
ISSN:0030-1388
1944-9151