High efficiency fracturing fluids for high temperature reservoirs
The fracturing fluids used in Massive Hydraulic Fracturing (MHF) treatments are frequently subjected to excessive shear and prolonged exposure at high bottomhole temperatures. Early fracturing fluids proved unsuitable for these MHF treatments due to a rapid loss of viscosity at high temperatures. As a result, narrow fracture widths, excessive fluid loss and poor proppant transport occurred. Cool-down pads, increased polymer concentrations and delayed polymer hydration systems were employed in an attempt to improve the MHF treatment success ratio. A laboratory investigation was undertaken to develop a more efficient high temperature fracturing fluid. Rotational and pipe viscometers were used to evaluate thermal and shear stabilities at reservoir conditions. Fluid loss testing measured the control of fluid leakoff to the formation. Fluid breakout testing ensured a controlled loss of viscosity and rapid cleanup. As a result of this study, a more efficient high temperature fracturing fluid was developed. This paper presents laboratory data comparing the thermal stability, shear stability and fluid loss control of the High Temperature Gel (HTG) with those of a conventional titanate crosslinked gel. Field case histories are presented to demonstrate the efficiency with which HTG has been used to successfully stimulate wells with bottomhole temperatures in excess of 250/sup 0/F.
- Research Organization:
- Western Co. of North America
- OSTI ID:
- 5499194
- Report Number(s):
- CONF-830236-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE 11566; Conference: Production operations symposium of the Oklahoma City section of the Society of Petroleum Engineers of AIME, Oklahoma City, OK, USA, 27 Feb 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
FRACTURING FLUIDS
SHEAR
STABILITY
HYDRAULIC FRACTURING
NATURAL GAS WELLS
OIL WELLS
DATA ANALYSIS
EFFICIENCY
ENHANCED RECOVERY
EXPERIMENTAL DATA
FLUID INJECTION
GELS
RESERVOIR ROCK
RESERVOIR TEMPERATURE
ROCK-FLUID INTERACTIONS
TEMPERATURE GRADIENTS
WELL COMPLETION
WELL STIMULATION
COLLOIDS
COMMINUTION
DATA
DISPERSIONS
FLUIDS
FRACTURING
INFORMATION
NUMERICAL DATA
RECOVERY
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production
030900 - Natural Gas- Artificial Stimulation
Plowshare- (-1989)