| 摘要 |
FIELD: oil production, particularly independent flow meters or flow meters to be included in downhole instruments for geophysical and hydrodynamic oil and gas well survey. ^ SUBSTANCE: flow meter comprises body separated into two parts connected with each other through tie member. The tie member is made as clip or body sector. Flow meter also comprises elastic turbine with diameter exceeding downhole instrument body diameter. Spring centrator is arranged over the turbine. Both body parts are connected with each other by means of through electric line. Axis of turbine rotation is offset with respect to body axis in direction opposite to tie member location. Flow meter is connected to tubing string and local constricted sections and is lowered in well without damage thereof to carry out necessary number of measurements in tubing string and casing pipe. The flow meter may be used as separate device or may be included in downhole assembly and may be connected to top or bottom part of the assembly. ^ EFFECT: increased reliability of flow meter having large-diameter turbine and improved performance. ^ 2 dwg |
