Particulate compositions containing oil field chemicals
OwnerFang Cao, Yao Xiong +5inventors
InventorsFang Cao, Yao Xiong, James D. Oxley, Wei Li, Satish Bodige, Abhimanyu O. Patil, Harry W. Deckman
Life of this patent
Estimating the term…
Abstract
Particulate compositions including a plurality of particles containing oil field chemicals encapsulated in a water soluble, water swellable, or water degradable matrix material are disclosed. The oil field chemicals may be corrosion inhibitors and the particulate composition may be prepared by spray drying mixtures of matrix material and oil field chemicals. The particulate compositions are designed to efficiently deliver the chemicals to the water phase of a multiphase environment, such as an oil/water environment.
Claims24
A particulate composition comprising a plurality of particles, said particles comprising a water soluble, water swellable, or water degradable matrix material and one or more oil field chemicals, said particles having a morphology selected from
- i) matrix encapsulated, and
- ii) core-shell encapsulated.
A method of delivering oil field chemicals to a water phase of a multiphase environment comprising:
- introducing one or more particulate compositions to a multiphase environment, the one or more particulate compositions comprising a plurality of particles, said particles comprising a water soluble, water swellable, or water degradable matrix material and one or more oil field chemicals, said particles having a morphology selected from i) matrix encapsulated, and ii) core-shell encapsulated;
- migrating at least a portion of the one or more particulate compositions to the water phase;
- and
- releasing the oil field chemicals from the one or more particulate compositions into the water phase.
Dependencies are inferred from the claim text.