WELL OPERATION METHOD Russian patent published in 2007 - IPC E21B43/00 E21B47/00 

FIELD: oil industry, particularly for well operation with simultaneous or periodic liquid discharge and measurement talking.

SUBSTANCE: method involves lowering two pipe strings in well; taking reservoir fluid via the first pipe string and lowering measuring instrument via the second string, wherein the second pipe string has length exceeding that of the first one; arranging separating shoe at the first string bottom; connecting both pipe strings by means of separating shoe; connecting pipes of the second pipe string through perforated nipples below separation shot. Ratio between nipples and solid pipes is 1:(2÷4). Number of orifices in nipples is 10-20 per 1 m, diameter thereof is 10-14 mm. Spherical funnel is installed at the second pipe string end.

EFFECT: provision of measurements carrying out at well bottom with simultaneous reservoir fluid taking.

1 ex, 3 dwg