초록 ▼

This invention relates to a process for increasing the effectiveness of production chemicals by reducing the number of squeezing and shut-in operations needed to increase the production rate from an oil well. The process includes injecting into an oil-bearing rock formation a water-miscible formulat

This invention relates to a process for increasing the effectiveness of production chemicals by reducing the number of squeezing and shut-in operations needed to increase the production rate from an oil well. The process includes injecting into an oil-bearing rock formation a water-miscible formulation including as components: (a) a water-miscible surfactant which is an alkyltriglycol ether and (b) at least one water-miscible oil field or gas field production chemical, said components of the formulation being introduced either as a pre-formed single composition, or simultaneously in parallel or sequentially in either order into the rock formation via the production well.

대표청구항 ▼

A process for increasing the effectiveness of production chemicals by reducing the number of squeezing and shut-in operations needed to increase the production rate from an oil well by inhibiting scale formation in said well, said process comprising injecting into an oil-bearing rock formation a wat

A process for increasing the effectiveness of production chemicals by reducing the number of squeezing and shut-in operations needed to increase the production rate from an oil well by inhibiting scale formation in said well, said process comprising injecting into an oil-bearing rock formation a water-miscible formulation comprising: (a) a water-miscible surfactant which is an alkyltriglycol ether, and (b) at least one water-miscible oil field or gas field production chemical comprising a scale inhibitor, under pressure and holding said formulation in said formation for a period to achieve said shut-in thereby enabling components of said formulation to be absorbed by the oil bearing formation and act as a scale inhibitor, said components of the formulation being introduced either as a pre-formed single homogeneous composition, or simultaneously in parallel or sequentially in either order into the rock formation.