Because of the wide variety of tests that might be conducted in a core flood system, our equipment is easily customized to meet the exact requirements of a specific customer application. The list below is just a few of the many applications that a DCI core flood system can be used for.
DCI is always pushing the limits of what is expected from a core flood system, this includes:
DCI has the expertise and knowledge to fulfill your needs.
Because DCI wants each system to have a quick learning curve and hassle free operation, key features have been designed to make operating the core flood system as easy as possible. These include:
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Not every application requires all the latest technology, DCI provides benchtop units that incorporate important features but are still affordable. DCI works hard to not sell you the most expensive system but rather the system that best fits your needs. Not sure what would best fit your needs? Call or email an applications engineer to discuss your needs.
|Example Specifications for Core Flood System|
|Confining Pressure:||Up to 20,000 psi|
|Pore Pressure||Up to 19,500 psi|
|Core Diameter:||1", 1.5", 2"|
|Temperature:||Oven, Flexible Jacket, Rod|
|Pressure Control:||VPA Syringe Pumps|
|Accumulators:||20ml to 2L|
|Wetted Parts:||316SS and Hastelloy|
Core flood systems are some of the most versatile lab equipment used in the oil and gas industry. Some of the many applications that a DCI core flood system can be used for include:
The core holder encloses the core sample and subjects it to simulated reservoir conditions. Some of the options that are available in a core flood system include:
DCI has designed a family of dual piston syringe pumps (VPA) specifically for core flood applications. These pumps use special algorithms to provide pulse-less flow to drive fluid separator accumulators. Some of the features that can be selected to meet specific test requirements include:
One option is a custom designed, stainless steel oven that houses the core holder(s) and fluid separators. This allows core flooding tests to be conducted routinely to 150°C. With special seal materials and other modifications to components, tests to 200°C are possible. Other options to heat components to reservoir temperatures include heating jackets and rod heaters.
A bank of piston-type accumulators is mounted in the oven to allow multiple fluids to flow through a core sample in sequence or simultaneously. Air operated automatic valves, also in the controlled temperature environment, allow the active accumulator(s) to be selected or be filled without disturbing the temperature environment. The separators are driven by one or more VPA’s. The separators provide capability to flow highly corrosive fluids through the core sample(s) without putting the corrosive fluid in contact with the VPA. Typical specifications for the fluid separators are:
The pressure control system controls the confining pressure around the core sample and, if applicable, the axial pressure applied to the core sample. Some options include:
Accurate differential pressure measurement is the key to accurate permeability and other flow parameter calculations. These measurements include differential pressure measurements over the length of the core and between ports on core holders with multi-tap pressure ports. Selecting the optimum differential measurement transducer(s) depends on the differential pressure to be measured as well as the system pressure rating. DCI engineers can help select the optimum differential pressure transducers for a specific application. A proprietary DCI design uses dual quartz pressure transducers with one part per billion resolution capability and an air-operated shorting valve between the two transducers to provide extremely accurate and stable differential pressure measurement.
The back pressure control system controls the downstream pore pressure in the system and provides a means of measuring flow rates and volumes of fluids flowing through the core(s). Options include:
Data is acquired automatically from each transducer in the system. This PC-based system allows the operator to specify which data are collected for a specific test as well as the data collection rate. The same PC program provides test control capability for the system. A touch-screen interface allows the operator to set the flow configuration, the back pressure control mode, the active accumulator, the oven temperature, the VPA control mode and other test parameters. The flow configuration and other test parameters are displayed graphically to the operator. Other screens allow for functions such as individual control of automated valves for maintenance purposes, entry of transducer calibration values, and more. This data acquisition and test control software is typically customized to each specific test system.
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