Uplifts and tilts at earth's surface induced by pressure transients from hydraulic fractures
- Amoco Production Co. (US)
The pressure transient that spreads through the formation during and after a hydraulic fracture treatment pressurizes the formation and induces a certain swelling. This swelling and the accompanying uplift at the earth's surface can be estimated with poroelastic theory. The uplift may produce a significant signal in tiltmeter devices placed at the surface. This paper reports six fracturing treatments in liquid-saturated reservoirs, all with tiltmeters to diagnose the fractures, analyzed. In five cases, routine tiltmeter analysis postulated a horizontal fracture component (in the remaining case, a near-vertical fracture of dip 70 to 85{degrees} probably could also be interpreted by a vertical fracture with a subsidiary horizontal component). In three treatments, however, theoretical tilts calculated from the pressure transient can account for the magnitude of the tiltmeter signals, which had previously been explained by a horizontal fracture component.
- OSTI ID:
- 6572427
- Journal Information:
- SPE (Society of Petroleum Engineers) Production Engineering; (USA), Journal Name: SPE (Society of Petroleum Engineers) Production Engineering; (USA) Vol. 5:3; ISSN SPENE; ISSN 0885-9221
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
COMMINUTION
DIRECTIONAL DRILLING
DRILLING
ENHANCED RECOVERY
FORMATION DAMAGE
FRACTURING
HORIZONTAL INTEGRATION
HYDRAULIC FRACTURING
NATURAL GAS WELLS
OIL SATURATION
OIL WELLS
PRESSURE GRADIENTS
RECOVERY
RESERVOIR PRESSURE
SATURATION
STIMULATION
WATER SATURATION
WELL STIMULATION
WELLS