Horizontal well improves recovery in deep sour gas field

Journal Article · Mon Mar 23 04:00:00 EST 1992 · Oil and Gas Journal; (United States)

OSTI ID:5720118

Schueler, S K ^[1]

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1. Mobil Erdgas-Erdoel GmbH, Celle (DE)

This paper reports that a five-fold increase in production resulted from one of the world's deepest horizontal gas wells drilled in the sour Zechstein formation in Germany. The Siedenburg Z-17, Germany's first deep horizontal gas well, currently produces 17,000 cu m/hr (15 MMcfd) at a wellhead flowing pressure of 48 bar (700 psi); this rate is substantially greater than that of comparable vertical wells in the area. Operator Mobil Erdgas-Erdol GmbH and its partner BEB Erdgas und Erdol GmbH (Duetsche Shell AG/Esso AG) drilled the difficult horizontal well to 3,415 m (11,200 ft) through largely depleted gas horizons and salt sections and into a low pressure, fractured sour gas formation.

• OSTI ID: 5720118
• Journal Information: Oil and Gas Journal; (United States), Journal Name: Oil and Gas Journal; (United States) Vol. 90:12; ISSN OIGJA; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300 -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
29 ENERGY PLANNING, POLICY, AND ECONOMY
294002 -- Energy Planning & Policy-- Petroleum
294003 -- Energy Planning & Policy-- Natural Gas
CHEMICAL COMPOSITION
DIRECTIONAL DRILLING
DRILLING
ENERGY SOURCES
ENHANCED RECOVERY
FLUIDS
FOSSIL FUELS
FRACTURED RESERVOIRS
FUEL GAS
FUELS
GAS FUELS
GASES
HORIZONTAL INTEGRATION
LOW PRESSURE
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
PLANNING
RECOVERY
STANDARDS
WELL COMPLETION
WELL DRILLING
WELLS