Title: Coiled Tubing Applications for
Characterization of Hydraulic Fracturing/Drilling
Fluids using a Field Scale Reservoir Fracture Simulator
Author(s): S.N. Shah and M. Asadi, The University of
Oklahoma
Presentation: 6th International Management Conference
on Coiled Tubing Technology/Applications
Location: Dallas, Texas USA
Date: October 27-29, 1997
Abstract: Over the last decade, coiled tubing has
gained interest in the petroleum industry and has been used
in many areas of drilling and hydraulic fracturing
operations. This interest is due to the ease of cost of
operations as compared to that of production tubing. At the
Fracturing Fluid Characterization Facility (FFCF), various
lengths of coiled tubing have been used to investigate the
effects of shear history on selected hydraulic
fracturing/drilling fluids. In addition, tests have been
conducted on bother straight and coiled sections of the
tubing to study the effect of curvature on fluid rheology
and to study coiled tubing frictional losses. This paper, in
one part, overview the capabilities of Fracturing Fluid
Characterization Facility and it's advanced High Pressure
Simulator (HPS) capable of operating at elevated pressure
and temperature that closely simulated field conditions
along with other auxiliary equipment. It also presents the
uniqueness of the FFCF in performing tests in various areas
of hydraulic fracturing such as rheological characterization
of fluids, proppant transport, perforation pressure loss,
and dynamic fluid loss. In the second part, an introduction
will be presented on the newly established coiled tubing
consortium and it's research activities. Also in this part,
research results will be presented on the coiled tubing
frictional losses and the effect of various coiled tubing
shear histories on fluid rheology.
