Multifunctional horizontal gas well simulation experiment device
A simulation experiment device and multi-functional technology, applied in the field of multi-function horizontal gas well simulation experiment device, can solve the problems that the simulation cannot be realized, and achieve the effect of simple structure and convenient operation
Active Publication Date: 2015-05-13
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0007] In addition, most research at home and abroad is based on oil pipelines or annular experimental devices, which are inconsistent with the actual situation of horizontal wells, so it is impossible to fully simulate the vertical, inclined and horizontal sections.
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[0019] Such as figure 1 As shown, the multifunctional horizontal gas well simulation experiment device includes the simulated vertical section wellbore, inclined section wellbore and horizontal section wellbore. The total height of the wellbore in the section is not less than 18m, the length of the wellbore in the inclined section is not less than 5m, and the ratio of the wellbore in the vertical section to the wellbore in the inclined section is consistent with the actual ratio of the wellbore on site; in order to simulate the flow characteristics of the wellbore in the horizontal section, the length of the wellbore in the horizontal section is greater than 15m; the wellbore in the horizontal section is provided with at least two sections of perforation, and each section of perforation includes several evenly arranged injection inlets. The position and density of injection inlets, the shape of the horizontal section and the well inclination angle can be designed according to t...
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The invention relates to a natural gas production process technology, in particular to a multifunctional horizontal gas well simulation experiment device, which comprises a simulated vertical section well shaft, an inclined section well shaft and a horizontal section well shaft in integral penetration, wherein the vertical section well shaft is provided with a pressure meter and a temperature indicator, the middle part of the vertical section well shaft is provided with a density instrument, the middle part of the inclined section well shaft is provided with a density instrument, the horizontal section well shaft is provided with at least two sections of perforation holes, a single pressure meter and a temperature indicator are respectively arranged beside each section of perforation hole, the water inlet end of each section of perforation hole is provided with a gas flow meter, the gas inlet end of each section of perforation hole is provided with a plunger piston metering pump, and a density instrument and a high-speed image pick-up instrument are arranged between every two sections of perforation hole. The multifunctional horizontal gas well simulation experiment device has the advantages that the structure is simple, the operation is convenient, and in addition, the horizontal well liquid forming and crushing rule, the continuous liquid carrying critical flow velocity, the gas well liquid accumulating process, the horizontal well gas liquid multiphase flowing pressure drop rule, the influence of perforation hole completion on gas well work rules, and the air-sand two-phase and air, water and sand three-phase flowing rules can be simulated.
Description
technical field [0001] The invention relates to a natural gas recovery technology, in particular to a multifunctional horizontal gas well simulation experiment device. Background technique [0002] In the process of natural gas extraction, horizontal wells can increase the contact area between the wellbore and the reservoir, increase the degree of production of the gas reservoir, and reduce the production cost. It has become a key technology for the development of low-permeability tight gas reservoirs. Horizontal wells have complex wellbore trajectories, which can generally be divided into vertical section, inclined section and horizontal section. Each section is an obvious nonlinear wellbore, and the completion method of opening the production layers in sections or completely makes the fluid entering the wellbore along the The wellbore is characterized by variable mass, which increases the difficulty of simulating the flow law of the gas wellbore. Especially when gas reser...
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IPC IPC(8): E21B47/00E21B49/08
Inventor 江健武恒志周兴付刘永辉张仕强刘大永张云善徐晓峰傅春梅董耀文杨筱璧余娟鲁光亮胡钟琴
Owner CHINA PETROLEUM & CHEM CORP