Foamed sand provides improved stimulation results from Devonian Shale

Conference · Tue Nov 01 00:00:00 EST 1983 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5227718

Strang, D L; Norton, J L

Generally, water saturations in the Devonian Shale are low. Production records indicate minimal, if any, water in the areas producing gas or gas and oil. This low water saturation appears to be the key to stimulating the shale, especially in the oil-producing areas. The introduction of water in the stimulation fluid appears to reduce the permeability to oil, which is reflected in poorer production. The relative permeability reduction seems to be more of a problem than particle migration or clay swelling and could explain the good initial results from straight nitrogen treatments. However, the lack of a proppant, even with low closure stress, leads to very rapid declines. Water-base stimulation fluids appear to increase water saturation in the Devonian Shale. Use of 90+ quality foam with sand should provide a method of minimizing saturation changes while creating a propped fracture. Initial results indicate this technique provides better sustained production increases in the Devonian Shale. This paper defines areas of production, describes the geology and presents physical data of the Devonian Shale. It also compares results of several types of treatments that have been used in the Devonian Shale. These results indicate 90+ quality foam with sand should provide an improved stimulation technique for this formation.

• Research Organization: Dowell Division of Dow Chemical, USA
• OSTI ID: 5227718
• Report Number(s): CONF-8311107-
• Journal Information: Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE 12312; Conference: Society of Petroleum Engineers of AIME eastern regional meeting, Champion, PA, USA, 9 Nov 1983
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
BLACK SHALES
DEVONIAN PERIOD
HYDRAULIC FRACTURING
FOAMS
MIXING
FRACTURING FLUIDS
EVALUATION
NATURAL GAS WELLS
OIL WELLS
SAND
FLUID INJECTION
GEOLOGICAL SURVEYS
MIXTURES
RESERVOIR ROCK
WATER SATURATION
WELL STIMULATION
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHATTANOOGA FORMATION
COLLOIDS
COMMINUTION
DISPERSIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FRACTURING
FUELS
GEOLOGIC AGES
GEOLOGIC FORMATIONS
MATERIALS
OIL SHALES
PALEOZOIC ERA
SATURATION
STIMULATION
SURVEYS
WELLS
020300* - Petroleum- Drilling & Production
030900 - Natural Gas- Artificial Stimulation
Plowshare- (-1989)