Modified fracs increase recovery from Oklahoma tight formations

Journal Article · Mon Jan 24 00:00:00 EST 1994 · Oil and Gas Journal; (United States)

OSTI ID:5465306

Veltri, D L ^[1]

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1. Veltri (D.L.), Houston, TX (United States)

Staged fracture stimulations with high sand concentrations have added recoverable reserves and improved the economics for developing tight formations in the Golden Trend of southern Oklahoma. Since the early 1950s, the Sycamore and Hunton formations have been recognized as formations requiring fracture stimulation for commercial production. Throughout the trend, numerous frac techniques have been used to stimulate the massive interval. Until 1992, high volume, slick water, and modified Kiel fracs were the favorite treatments because of low cost and relatively high initial producing rates. Because of the low gas prices that continued into the early part of 1992, new completions in the Golden Trend were attractive to only those companies that could take advantage of Section 29 tax credits. However, of the low gas prices that continued into the early part of 1992, new completions in the Golden Trend were attractive to only those companies that could take advantage of Section 29 tax credits. However, Chesapeake Energy Corp. could not use the tax credits and therefore focused on increasing gas recoveries and the rate of return from this area. By re-engineering the traditional completion and drilling practices, Chesapeake Energy added more than 1 bcf and 20,000 bbl of oil/well. Ultimate recoveries from each well are about 1.5--2.0 bcf and 30,000--40,000 bbl of oil. The paper describes the frac design, the frac team, treatment procedures, and production results after the first six months from 44 completions.

• OSTI ID: 5465306
• Journal Information: Oil and Gas Journal; (United States), Vol. 92:4; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
NATURAL GAS WELLS
HYDRAULIC FRACTURING
OIL WELLS
OKLAHOMA
ENHANCED RECOVERY
NATURAL GAS
PERMEABILITY
PETROLEUM
PRODUCTIVITY
WELL STIMULATION
DEVELOPED COUNTRIES
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FRACTURING
FUEL GAS
FUELS
GAS FUELS
GASES
NORTH AMERICA
STIMULATION
USA
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing