Design and usage of an artificial fracture setup for gel evaluation
AssigneesSaudi Arabian Oil Company, Aramco Far East (Beijing) Business Services Co., Ltd.
InventorsAyman M. Almohsin, Dongqing Cao, Ming Han, Bader G. Alharbi
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Abstract
A system and method of testing pre-formed particle gels in an artificial fracture system may include introducing a suspension including a pre-formed particle gel into a testing device that includes an artificial fracture setup with a plurality of fracture model units. The system may be configured to inject pre-formed particle gels into an accumulator with magnetic stirrers first and then into a series of fracture model units configured to receive a fluid through a flow channel and, change the flow channel in a transverse direction relative to the direction of the fluid flow.
Claims11
A system for a plugging agent evaluation or to estimate the performance of a plugging agent in a fracture of an oil-containing reservoir, the system comprising a pump, an accumulator, an artificial fracture setup, and a pressure measurement system, wherein:
- the accumulator comprises a floating piston separating an upper accumulator chamber and a lower accumulator chamber;
- the pump is fluidly connected to the upper accumulator chamber;
- a magnetic stirrer is disposed within the lower accumulator chamber, and the lower accumulator chamber is fluidly connected to the artificial fracture setup;
- the artificial fracture setup comprises a plurality of fracture model units comprising void areas configured to simulate formation fractures;
- and
- the pressure measurement system is configured to measure a pressure at one or more locations within the artificial fracture setup.
A method of gel evaluation using an artificial fracture system, the method comprising:
- assembling a pump, an accumulator, a pressure measurement system, and an artificial fracture setup having a plurality of artificial fracture model units in series, where the plurality of artificial fracture model units mimics a fracture in a hydrocarbon reservoir;
- injecting a plugging agent into the artificial fracture setup from the accumulator through a connecting line;
- measuring pressures in the artificial fracture setup while injecting the plugging agent;
- disassembling the artificial fracture setup;
- and
- measuring a plugging efficacy of the plugging agent based on pressure data and gel formations formed within the artificial fracture setup.
Dependencies are inferred from the claim text.