17644370. FOAMED SCALE REMOVAL AND INHIBITION METHOD FOR SUBTERRANEAN FORMATION simplified abstract (Saudi Arabian Oil Company)

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FOAMED SCALE REMOVAL AND INHIBITION METHOD FOR SUBTERRANEAN FORMATION

Organization Name

Saudi Arabian Oil Company

Inventor(s)

Prasad Baburao Karadkar of Dhahran (SA)

Bader G. Harbi of Dhahran (SA)

FOAMED SCALE REMOVAL AND INHIBITION METHOD FOR SUBTERRANEAN FORMATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 17644370 titled 'FOAMED SCALE REMOVAL AND INHIBITION METHOD FOR SUBTERRANEAN FORMATION

Simplified Explanation

The patent application describes a composition and method for treating scale in a formation using a foam. The composition includes a nonionic fluorinated polymeric surfactant, a nonfluorinated surfactant, and a scale treatment. The method involves injecting gas into the composition to produce a foam, which is then injected into the formation. The foam has a first viscosity at a first temperature inside the formation and is maintained there for a period of time. After recovery from the formation, the foam is exposed to a second temperature and has a second viscosity.

  • The composition includes a nonionic fluorinated polymeric surfactant, a nonfluorinated surfactant, and a scale treatment.
  • Gas is injected into the composition to produce a foam.
  • The foam is injected into a formation to treat scale.
  • The foam has a first viscosity at a first temperature inside the formation.
  • The foam is maintained inside the formation for a period of time.
  • The foam is recovered from the formation.
  • The recovered foam is exposed to a second temperature and has a second viscosity.

Potential Applications

  • Scale treatment in various formations.
  • Oil and gas industry for well stimulation and enhanced oil recovery.

Problems Solved

  • Efficient treatment of scale in formations.
  • Improved recovery of foam after treatment.

Benefits

  • Effective scale treatment using a foam.
  • Versatile composition for various formations.
  • Improved recovery of foam for reuse.


Original Abstract Submitted

A composition includes a nonionic fluorinated polymeric surfactant, a nonfluorinated surfactant, and a scale treatment. Additionally, a method for scale treatment is provided. The method includes injecting gas into the aforementioned composition to produce a foam and injecting the foam into a formation. In the formation, the foam may be exposed to a first temperature at which it has a first viscosity. The foam may be maintained inside the formation for a period of time, and then recovered from the formation, at which point it is exposed to a second temperature and has a second viscosity.

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