X-ray and Gamma scanning measurements are widely used to analyze the fluid flow
properties within the reservoir. These core holders are used for this application.
These core holders offer an aluminum body which is over wrapped with carbon fiber
composite. The aluminum-composite body absorbs less X-rays or Gamma rays than an
all aluminum core holder and is more cost effective than a carbon fiber epoxy core
holder. With the lower absorption, dual-energy studies can still be performed at
high pressure. The composite aluminum body has a uniform thickness throughout the
length of the core, so measurements can be easily performed. The internal parts
of the core holder can be similar to the Hassler, Biaxial, Tri-axial, or pressure
tapped core holders. Please refer to the RCH, HCH, TCH, or DCH Series catalog
sheets for specific information.
If the core holder is supplied with pressure taps, then the pressure port fitting
and tubing can be manufactured from PEEK or titanium material. The PEEK or titanium
material is recommended for low Xray absorption. The thickness of the aluminum liner
increases as the inner diameter, pressure, and temperature increase. At high pressures
and temperatures, the required aluminum wall thickness, for safe operation, may
have too much X-ray absorption. These factors are all taken into account by the
experienced engineering staff at Core Laboratories to insure that a core holder will be delivered
that will satisfy the requirements.