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Sand Jet Systems

In addition to dissolved components and dispersed hydrocarbons, produced water often contains a mixture of solids. These originate primarily from the reservoir rock but may include sand, clay, mineral scale and, possibly, proppant.

The bulk of the produced solids will accumulate in the primary gravity oil-gas separator vessel, from which they must be removed periodically to avoid reduction of the separator residence time, and reduced separation efficiency. Eventually, the solids can accumulate to considerable depths, and increased carry-over into the downstream processes will be observed. This problem is also associated with slug catchers and free water knock-out drums.

Advantages of Sand Jet systems:

  • Online operation
  • Cost effective
  • Low water requirement.

Application of Sand Jet systems:

  • Mainly horizontal separators (vertical separators also possible).

Case Studies

Espirito Santo (Brazil)

Parque das Conchas (BC-10)

Shell serves as the operator for the Parque das Conchas (aka BC-10) project which consists of five fields, Ostra, Abalone, Argonauta B-West, Argonauta O-North and Nautilus, located in the Campos Basin area, offshore Espirito Santo, Brazil. The project is situated 75 miles (120 km) southeast of the city of Vitoria, in water depths of 4,921 to 6,562 feet (1,500 to 2,000 meters). The first phase of the project commenced production on July 13, 2009.

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