An annulus simulation device for water injection wells
A technology for simulating devices and well annulus, which is applied in wellbore/well components, production fluid, earthwork drilling and production, etc. It can solve the problems of inaccurate testing of intelligent water distributors and reduce the cost of experiments, and solve the problems of inaccurate testing on wells, The effect of reducing the cost of experiments
Active Publication Date: 2020-09-22
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology
The water injection well annulus simulation device simulates the downhole water injection conditions to the greatest extent, realizes the maintenance of the intelligent water distributor on the well, solves the problem of inaccurate testing of the intelligent water distributor on the well, and greatly reduces the experimental cost
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[0020] The present invention will be further described below in conjunction with accompanying drawing:
[0021] Such as Figure 1 to Figure 7 As shown, the injection well annular simulation device is mainly composed of a water inlet pipeline 1, a simulated wellbore 2, a return pipeline 3, and a simulated formation pipeline 4.
[0022] Wherein, in the water inlet pipeline 1, the injected water enters the water inlet steel pipe 11 and passes through the first high-pressure ball valve 13 and the first high-precision flowmeter 12 in sequence, and the first high-pressure ball valve 13 and the first high-precision flowmeter 12 are connected to the inlet Water steel pipe 11 is connected by flange, as figure 2 As shown, the first high-precision flowmeter 12 is used to measure the actual flow rate of injected water in the actual process. In order to facilitate disassembly, the water inlet pipe 11 is connected to the simulated wellbore 2 through a transition hose 14, and the two ends...
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A water injection well annular simulation device. Including water inlet pipeline, simulated wellbore, return pipeline, simulated formation pipeline, etc. Using this kind of simulation device, the intelligent wireless water distributor is placed in the simulated wellbore of the device, and then the high-pressure fluid is introduced from the injection port to realize the simulation of the actual working conditions of the intelligent wireless water distributor in the well, and then realize the water distributor. The high-pressure water pressure and flow parameters of the water nozzle are collected, and by comparing the pressure and flow signals uploaded by the water distributor with the pressure and flow signals obtained from the test bench, the water injection well annulus simulation device can simulate the downhole water injection conditions to the greatest extent and realize The maintenance of the intelligent wireless water distributor on the well has solved the problem of inaccurate testing of the intelligent wireless water distributor on the well, and greatly reduced the cost of the experiment.
Description
Technical field: [0001] The invention relates to a water injection well annular simulation device applied in the field of oilfield water injection. Background technique: [0002] After the oil field is put into development, as the production time increases, the energy of the oil layer itself will be continuously consumed. The stratification of the oil layer will decrease, and a large amount of underground crude oil will be degassed. If the temperature increases, the oil production of the oil well will be greatly reduced, and even the injection and production will be stopped. This makes a large amount of dead oil remaining in the ground unable to be recovered, causing huge losses. In order to make up for the lack of subsurface pressure caused by crude oil production, maintain or increase formation pressure, achieve high and stable oil production, and obtain high recovery, water injection technology has been developed. [0003] At present, the intelligent layered water injec...
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IPC IPC(8): E21B43/20
CPCE21B43/20
Inventor 任福深刘扬王茜王宝金程建勋方天成
Owner NORTHEAST GASOLINEEUM UNIV