Fracturing-fluid leakoff under dynamic conditions part I: Development of a realistic laboratory testing procedure

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:457348

McGowen, J M; Vitthal, S

Laboratory testing of fluid leakoff enables optimum recommendations for fracturing fluid composition in addition to accurate predictions of relationships between leakoff rates and formation and fracturing-fluid properties. Static fluid-loss measurements, the present standardized testing method, provide inadequate results for comparing fracturing-fluid materials or for understanding the complex mechanisms of viscous fluid invasion, filter-cake formation, and filter-cake erosion. Previous dynamic fluid-loss studies have inadequately addressed the development of proper laboratory methods, which has led to erroneous and conflicting results. This paper (Part 1 in a series) discusses the results of a consortium that was established to help us understand and allow modeling of the fluid-leakoff process in hydraulic-fracturing applications. Part 1 summarizes over 300 laboratory experiments structured to study the effects of cell design, fluid-preconditioning (both high-shear and low-shear regimes), and core thickness on fluid leakoff. The results help define appropriate laboratory equipment and testing procedures for realistic modeling of the filtration process of fracturing fluids.

• OSTI ID: 457348
• Report Number(s): CONF-961003--
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
EVALUATION
FRACTURING FLUIDS
HYDRAULIC FRACTURING
OIL FIELDS
RESERVOIR ENGINEERING
RESERVOIR ROCK
WELL STIMULATION