Flow field measurement device and measurement method for natural gas hydrate experimental system
An experimental system and measurement device technology, applied in the field of experimental simulation, can solve problems such as ineffective observation, difficult shooting, and difficult photography equipment
Active Publication Date: 2021-06-08
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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Problems solved by technology
However, natural gas hydrates are mostly stored in porous media, and the window system can only observe the porous media. It is difficult for photographic equipment to go deep into the reactor, and it is also difficult to take pictures in the environment of the reactor.
These means cannot effectively observe or measure the flow field in the reactor
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[0028] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it can be a mechanical connection, an electrical connection, or a signal connection; it can be a direct connection or an indirect connection through an intermediary, which can be said to be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations. The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0029] refer to figure 1 As shown, there are 27 vertical wells in the reactor of the gas hydrate experimental system provided in this example, and the gas hydrate reserv...
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The invention discloses a flow field measurement device and a measurement method for a natural gas hydrate experimental system. The measurement device includes a non-central vertical well pressure sensor, a non-central vertical well outlet valve, a communicator valve, a differential pressure sensor, a communicator, a central Vertical well outlet valve and central vertical well pressure sensor. By connecting the measuring points of the central vertical well of the natural gas hydrate experimental system with the measuring points of each vertical well to measure the pressure difference, the three-dimensional space distribution in the whole reactor is reasonable, and the simulated flow field is more convenient. Analyze the gas-liquid flow trend in the reactor; make a preliminary judgment based on the information fed back by the pressure sensor, and then decide whether to turn on the differential pressure sensor. Under the conditions of large and small pressure differences, the flow field in the reactor can be measured. The differential pressure sensor can also be effectively protected.
Description
technical field [0001] The invention relates to an experiment simulation technology, in particular to a flow field measurement device and a measurement method for a natural gas hydrate experiment system. Background technique [0002] The field measurement of gas hydrate experiment system generally includes temperature field, pressure field, flow field and so on. The temperature field has been able to achieve perfect real-time measurement of the temperature field by arranging a large number of temperature sensors. Generally, a pressure sensor is installed at the inlet and outlet of the reactor to realize real-time measurement of the pressure field of the entire reactor. The measurement of the flow field has always been difficult. Realize, as disclosed in the patent document CN102305052A, a three-dimensional multi-well combined exploitation experimental device for natural gas hydrate and an experimental method thereof. [0003] Most gas hydrate experimental systems are small ...
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IPC IPC(8): G01N33/22G01D21/02G01L13/00
CPCG01N33/222G01D21/02G01L13/00G01V2210/647G01P5/001E21B47/06G01L13/06
Inventor 李小森王屹陈朝阳夏志明李刚张郁
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI