Testing device and testing method for horizontal well subsection well completion inflow

Abstract

The invention relates to a testing device and a testing method for horizontal well subsection well completion inflow, the device comprises an oil water separating pumping system, an oil water mixing inflow system, a horizontal well subsection well completion imitating well tube system and a speed reducing buffer liquid pot, the oil water separating pumping system is connected to a plurality of sets of oil water mixing inflow systems in a parallel mode through the oil water external connection pipeline, each set of oil water mixing inflow system is connected to the flow in hole of the horizontal well subsection well completion imitating well tube system through the pipeline; the horizontal well subsection well completion well completion inflow imitating well tube system, the speed reducing buffer liquid pot, the oil water separator inlet of the oil water separating pumping system are connected through the pipelines. The testing device and testing method for horizontal well subsection well completion inflow can display the different liquid producing sections, water out degree for horizontal well subsection well completion and the well tube pressure and temperature change relationship under impact of the centre tube column; the test under single factor influence can be realized as well as the test under multi-factor coupling function, the scientific base can be offered for developing the horizontal well water finding testing technology.

Description

technical field [0001] The invention belongs to the field of petroleum engineering, and in particular relates to a horizontal well staged completion inflow testing device and a testing method, which are used for measuring the inflow fluid volume, water content and wellbore pressure of each stage under the condition of horizontal well staged completion. Temperature distribution profile change relationship. Background technique [0002] The application of horizontal wells has obvious advantages in improving the production efficiency of single wells. At present, the staged completion of horizontal wells has become the mainstream trend and has been successfully applied in major oilfields in China. With the conventional completion method, once the bottom water breaks through, the horizontal well will not be able to continue production; but with the staged completion method, staged water blocking and staged oil production can be implemented. Accurate diagnosis and control of wate...

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Problems solved by technology

[0004] Most of the existing horizontal well simulation devices are designed for the research needs of horizontal well sand production, formation seepage field or horizontal wellbore pressure drop law under conventional well completion methods, and there is no horizontal well segmental completion inflow test device and test method. related reports

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