Horizontal well staged completion inflow testing device and testing method
A testing device and technology for horizontal wells, which are applied to wellbore/well components, measurement, earth-moving drilling, etc., can solve the problems such as the inflow testing device and testing method for segmented completion of horizontal wells that have not yet been seen, and achieve simple and reliable devices. Good performance and high precision
Active Publication Date: 2016-03-09
CHINA UNIV OF PETROLEUM (EAST CHINA)
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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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[0015] Such as figure 1 As shown in the figure, the inflow test device for segmental completion of horizontal well has three segments, including: oil-water separation pumping system 1, oil-water mixing inflow system 2, horizontal well segmental completion simulation wellbore system 3, deceleration buffer tank 4 ;The oil-water separation pumping system 1 is used for pumping and separating oil-water two-phase fluid, and connects three sets of oil-water mixed inflow systems 2 in parallel through oil-water external pipelines. The inflow holes 32 of the wellbore system 3 are connected; the oil-water mixed inflow system 2 realizes the simulation of the inflow fluid environment in stages, and the horizontal well completion simulation wellbore system 3 is used to simulate the fluid flow state and fluid parameter changes in the horizontal wellbore of the staged completion Situation; horizontal well completion simulation wellbore system 3 is connected to the inlet of the deceleration bu...
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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 segmental completion inflow testing device and testing method, which are used to measure the inflow fluid volume, water content and wellbore pressure of each segment under the condition of horizontal well segmental completion. The temperature distribution profile change relationship. Background technique [0002] The application of horizontal wells has obvious advantages in improving the production efficiency of a single well. At present, the completion of horizontal wells in stages has become the mainstream trend and has been successfully applied in major oilfields in China. With the conventional well completion method, once the bottom water breaks through, the horizontal well will not be able to continue producing; while the staged well completion method can implement staged water blocking and staged oil recovery. Accurate diagnosis and contro...
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IPC IPC(8): E21B47/06
CPCE21B47/06E21B47/07E21B47/10
Inventor 张先敏冯其红陈先超舒成龙王相孙祥晖
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)