A supersonic separation device for natural gas wells based on magnetorheological elastomer intelligent shock absorption
A magnetorheological elastomer and intelligent shock absorption technology, which is applied in the direction of mining fluid, wellbore/well components, earthwork drilling and production, etc., can solve the problems of affecting the flow field, destroying the low-temperature and low-pressure environment, and reducing the separation efficiency, etc. The effect of service life
Active Publication Date: 2020-09-15
SHAANXI HAICHUANG ELECTROMECHANICAL EQUIP ENG CO LTD
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Problems solved by technology
At present, the main problem existing in the supersonic separator is that a series of shock waves will be generated when the high-speed gas collides with the swirl blades, which will cause vibrations in the reducer, throat and local expander, resulting in energy loss. In severe cases, even Affect the flow field, destroy the low-temperature and low-pressure environment, and cause the volatilization of droplets in the separation section, thereby reducing the separation efficiency
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[0018] refer to figure 1 , a natural gas well supersonic separation device based on magnetorheological elastomer intelligent damping, which is set in the wellbore casing 1 and located above the liquid level at the bottom of the wellbore; it includes straight sections 8 such as inlets that are sequentially fixedly connected coaxially, Subsonic convergence section 9, supersonic rectification section 10, and supersonic expansion section 12;
[0019] The straight section 8 of the inlet is the inlet of the pretreated natural gas, the inlet is provided with a cyclone 2, the edge gear of the cyclone 2 is externally connected to a small generator 3, and a wire 5 is arranged outside the positive pole of the motor 3, and the wire 5 passes through the magnet. After the rheological elastomer 4, connect back to the negative pole of the motor 3 to form a loop;
[0020] The outer part of the subsonic convergence section 9 is wrapped with the magnetorheological elastomer 4 covered by the sea...
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The invention discloses a supersonic separation device for a natural gas well based on an intelligent damping function of a magnetorheological elastomer. The device is characterized in that a supersonic separator is arranged in a well cylinder sleeve pipe in a sitting mode, and the device comprises an inlet linear section, a subsonic convergence section, an initial supersonic expansion section anda supersonic expansion section from front to back in sequence, wherein a swirler is arranged at the inlet of the inlet linear section and is externally connected with a gear meshed with a generator,and a wire in the generator penetrates through the interior of the magnetorheological elastomer; and the magnetorheological elastomer is sealed in a hollow rotary body part such as a tapered pipe, a venturi pipe and a local enlargement pipe where a supersonic spray pipe is prone to vibration. According to the device, the elasticity modulus of the magnetorheological elastomer can be intelligently adjusted along with the flow velocity of the inlet of the supersonic spray pipe, damping and buffering effects between the sleeve pipe and the spray pipe are achieved, the service life of the supersonic spray pipe is prolonged, and great economic values for development of natural gas are realized.
Description
technical field [0001] The invention belongs to the technical field of natural gas production, and in particular relates to a supersonic separation device for natural gas wells based on magnetorheological elastomer intelligent damping. Background technique [0002] In recent years, with people's in-depth research on natural gas resources, the level of natural gas purification technology has gradually improved. Natural gas is composed of multiple components. In addition to the main component methane, it also contains impurities such as water, hydrogen sulfide, and carbon dioxide. Water can form hydrates with certain components in natural gas. Excessive hydrate accumulation can easily cause pipeline blockage and affect production. Moreover, liquid water easily dissolves acid gas in natural gas to form an acidic solution, causing serious corrosion to equipment such as pipelines and valves, reducing the service life of equipment and increasing production costs. [0003] The su...
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IPC IPC(8): E21B43/38
CPCE21B43/38
Inventor 王治国蔺靖杰郭姜汝宋金朋刘昭辉窦益华
Owner SHAANXI HAICHUANG ELECTROMECHANICAL EQUIP ENG CO LTD