Abstract: A jet pump system and method facilitate the production of a subterranean fluid. The jet pump system comprises a jet pump, a surface pump, a surface pump gauge, and a pump driver coupled to the surface pump to change a drive frequency of the pump driver based on production parameters and pumping parameters of the surface pump (drive frequency (FR) of the surface pump and the power fluid parameters) whereby the surface pump is selectively varied to optimize production. The jet pump method involves deploying the jet pump into the wellbore; pumping power fluid through the jet pump using the surface pump; measuring the pumping parameters; generating the production parameters of the subterranean fluid produced (production rate (QP) of the subterranean fluid); and optimizing the producing by changing the drive frequency (FR) based on the measured power fluid parameters and the generated production parameters.

Abstract: A jet pump system and method for facilitating production of a subterranean fluid from a wellbore at a wellsite. The jet pump system comprises a jet pump, a surface pump, a surface pump gauge, and a pump driver coupled to the surface pump to change a drive frequency of the pump driver based on production parameters of the surface pump (drive frequency (FR) of the surface pump and the power fluid parameters) whereby the surface pump is selectively varied to optimize production. The jet pump method involves deploying the jet pump into the wellbore; pumping power fluid through the jet pump using the surface pump; measuring the pumping parameters; generating production parameters of the subterranean fluid produced at the surface (production rate (QP) of the subterranean fluid); and optimizing the producing by changing the drive frequency (FR) based on the measured power fluid parameters and the generated production parameters.

Abstract: The invention concerns an apparatus for analysing water chemistry. According to the invention, the apparatus is adapted to operate downhole and comprises a colouring agent supply device for supplying a colouring agent to a water sample, the colour of the water sample thus supplied being indicative of the water sample chemistry, and a colorimetric analyser arranged to determine the colour of the water sample.

Abstract: A receptacle (10) for use in collecting samples down a well bore (14) is provided, the receptacle comprising a plurality of interconnecting modules (22, 24, 26, 30, 32, 34). A main chamber (22) is capable of holding a sample, and sensors (58, 60, 62, 64) within the chamber detect physical and chemical characteristics of the sample. Valves (50, 52) in a chamber wall seal the chamber (22) after a fluid sample has been collected. A communication means is placed in communication with the chamber (22) so as to provide an externally accessible port which communicates with the inside of the chamber (22) and allows detection and analysis of sample characteristics without removing the sample from the sealed chamber (22). The chamber (22) includes a piston (82) which is adjustable to keep pressure constant in the chamber and a heating element (58) to keep temperature constant. A method for sampling downhole fluids is also provided.

Abstract: The present invention relates to a method and apparatus for detection of hydrogen sulfide in downhole operations. A downhole tool is provided with a coupon adapted to react at varying degrees to exposure to concentrations of hydrogen sulfide. The downhole tool is positioned in the wellbore with the coupon(s) exposed to downhole fluids. A reaction to a change in the coupon, such as coloration, is used to determine the presence and concentration of hydrogen sulfide.

Abstract: A receptacle (10) for use in collecting samples down a well bore (14) is provided, the receptacle comprising a plurality of interconnecting modules (22, 24, 26, 30, 32, 34). A main chamber (22) is capable of holding a sample, and sensors (58, 60, 62, 64) within the chamber detect physical and chemical characteristics of the sample. Valves (50, 52) in a chamber wall seal the chamber (22) after a fluid sample has been collected. A communication means is placed in communication with the chamber (22) so as to provide an externally accessible port which communicates with the inside of the chamber (22) and allows detection and analysis of sample characteristics without removing the sample from the sealed chamber (22). The chamber (22) includes a piston (82) which is adjustable to keep pressure constant in the chamber and a heating element (58) to keep temperature constant. A method for sampling downhole fluids is also provided.

Abstract: The present invention relates to a method and apparatus for detection of hydrogen sulfide in downhole operations. A downhole tool is provided with a coupon adapted to react at varying degrees to exposure to concentrations of hydrogen sulfide. The downhole tool is positioned in the wellbore with the coupon(s) exposed to downhole fluids. A reaction to a change in the coupon, such as coloration, is used to determine the presence and concentration of hydrogen sulfide.