Abstract: It is proposed a measurement system comprising a source of pressurized gas configured to deliver a gas at a predetermined pressure, a longitudinal storing reservoir configured to store a liquid, a longitudinal receiving reservoir, a capillary tube and a measurement device. The measurement device is configured to perform a measurement relative to the flow of the liquid inside an inner chamber of the longitudinal receiving reservoir when the pressurized gas is provided in the inner chamber of the longitudinal storing reservoir by the source of pressurized gas. The longitudinal storing reservoir, the capillary tube and the longitudinal receiving reservoir are configured so as to be positioned horizontally during the measurement relative to the flow of the liquid. The system provides an improved solution for performing a measurement on a liquid in an easy, accurate and efficient manner.

Abstract: Use of at least one compound of formula (I): (I) [P+(R1—Y—R2)4]zXz- is described for enhancing the injectivity of an injection well, wherein: Y is chosen from an oxygen atom or an NH group; R1 is a linear or branched alkyl radical having from 1 to 15 carbon atoms; R2 is chosen from a hydrogen atom or a linear or branched alkyl radical having from 1 to 14 carbon atoms; Xz- is a monovalent anion or a divalent anion, or a trivalent anion, or a tetravalent anion group; z is a number from 1 to 4. The compound of formula (I) is added to an aqueous medium to form an injection stream which is injected into a subterranean formation which comprises at least one polymer, via said injection well.

Abstract: The present invention relates to the use of at least one compound of formula (I): (I) [P+(R1—Y—R2)4]zXz- wherein: Y is chosen from an oxygen atom or an NH group; R1 is a linear or branched alkyl radical having from 1 to 15 carbon atoms; R2 is chosen from a hydrogen atom or a linear or branched alkyl radical having from 1 to 14 carbon atoms; Xz- is a monovalent anion or a divalent anion, or a trivalent anion, or a tetravalent anion group; z is a number from 1 to 4; for enhancing the injectivity of an injection well, wherein the compound of formula (I) is added to an aqueous medium to form an injection stream which is injected into a subterranean formation which comprises at least one polymer, via said injection well.

Abstract: The present invention relates to a flow control valve to be connected to a pipe. The valve includes: a plurality of fluid transport tubes having a geometrically variable cross-section and placed in parallel with each other; and a means for connecting to the pipe and located at one end of the fluid transport tubes.

Abstract: The present invention relates to a flow control valve to be connected to a pipe. The valve includes: a plurality of fluid transport tubes having a geometrically variable cross-section and placed in parallel with each other; and a means for connecting to the pipe and located at one end of the fluid transport tubes.