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O-shaped well physical simulation experiment device

An experimental device and physical simulation technology, applied in wellbore/well components, production fluid, measurement, etc., can solve problems such as inability to simulate O-shaped wells, injection-production well groups that cannot be simulated, and improve the degree of experiment automation Effect

Active Publication Date: 2012-10-10
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] But the existing oil well physical simulation experiment device only simulates vertical wells and horizontal wells, but cannot simulate O-shaped wells; In the middle of the model, the O-shaped well is around the model)

Method used

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  • O-shaped well physical simulation experiment device
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  • O-shaped well physical simulation experiment device

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Embodiment Construction

[0029] In order to have a clearer understanding of the technical features, objectives and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0030] Such as figure 1 , figure 2 , image 3 As shown, the present invention proposes an O-shaped well physical simulation experimental device 100, which is composed of a reservoir simulation system 1, a fluid supply system 2, a data acquisition system 3, and a produced fluid metering system 4;

[0031] The reservoir simulation system 1 includes a sand pack model composed of a cylindrical sealed container 11, the cylindrical sealed container 11 is composed of a cylindrical body 111 and an upper gland 112; the inner and lower parts of the cylindrical body 111 A bottom water diffusion net 12 is fixed; the bottom end of the cylindrical body 111 is provided with a bottom water injection hole 1111; the middle of the cylindrical body 111 is provided w...

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Abstract

The invention provides an O-shaped well physical simulation experiment device. The experiment device comprises a fluid feeding system, an oil reservoir simulation system, a data acquisition system and an output liquid metering system. Accurate simulation of O-shaped well circular supply boundary is realized by using a cylindrical box body; by using a hydraulic top cover, compacting effect is improved and permeability of a sand-packed model is reduced; internal pressure distribution data of the sand-packed model can be acquired in real time by using a set of pressure monitoring systems comprising a plurality of pressure transducers; experiment automaticity is raised by using a data acquisition and processing system; O-shaped well flooding well network simulation is realized by arranging a water injection well borehole at a central section of the sand-packed model; and bottom water reservoir simulation is realized by arranging a water injection hole at bottom of the sand-packed model, thereby a new research platform is provided for O-shaped well oil and gas field exploitation mechanism and application researches.

Description

Technical field [0001] The invention relates to an experimental device for simulating the production performance of an oil well in an oil reservoir and the seepage law of the near-well zone of the oil well, in particular to an O-shaped well physical simulation experimental device. Background technique [0002] With the continuous development of drilling technology, complex well shapes that can adapt to different types of reservoir conditions have emerged. These complex well shapes have incomparable advantages with conventional vertical wells. They have higher production and greater economic benefits. They have become some The main well shapes of oil fields (especially offshore oil fields) have broad application prospects. [0003] O-shaped well is a new type of well with complex structure. Its drilling trajectory surrounds a point in the reservoir to form an “O” shape with a radius of R (the well trajectory in the reservoir is similar to the end-to-end connection in the horizontal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B47/06E21B43/20
Inventor 安永生吴晓东韩国庆张睿曹光朋朱明
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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