Apparatus for on-site assessment of the effectiveness of a treatment in the course of its application to a hydrocarbon well

Claim 1

Apparatus for on-site assessment of the effectiveness of a treatment during its application to a well whose bottom reaches a stratum of hydrocarbons, by the introduction of fluids under pressure into an injection line connected at the surface to a pipe extending down to the bottom of the well and provided with detector means for detecting information relating to pressure and flow, the apparatus comprising a computing unit, connection means for connecting said computing unit to said detector means for receiving said information therefrom, a data acquisition unit adapted for receiving data relating to the well, to the stratum and to the treatment, connection means for connecting said computer unit to said data acquisition unit for receiving said data therefrom, said computing unit being capable of calculating the pressure P F at the bottom of the well from said information and said data received thereby, a visual display unit, and connection means for connecting said visual display unit to said computing unit for receiving control instructions from said computing unit, said visual display unit being adapted to display at any moment a representative point defined by the pressure P F at the bottom of the well, as calculated by said computing unit, and the flow Q in said injection line, as determined from information from at least one of said detector means.