Method for calculating horizontal movement speed of seabed mud volcano mud flow

Abstract

The invention relates to a method for calculating the horizontal movement speed of seabed mud volcano mud flow, which comprises the following steps of: step 1, determining the shape formed by the mudflow, executing a step 21 if the mud flow is in a regular circle shape, and executing a step 22 if the mud flow is in an irregular ellipse shape; step 21, carrying out a step 21; obtaining the distance R1 from the observation device to the mud volcano eruption center at the beginning of observation; the distance R2 from the position of the observation device to the mud volcano eruption center whenobservation is finished, the time delta t from observation starting to observation finishing and the distance R from the eruption center to the position point where the horizontal movement speed of the mud flow needs to be calculated are calculated according to a corresponding formula; and step 22, obtaining the area S1 of the first irregular ellipse, the area S2 of the second irregular ellipse,the perimeter P2 of the second irregular ellipse and the perimeter P1 of the first irregular ellipse, and calculating according to a corresponding formula. The movement speed of the mud flow in the horizontal direction can be effectively calculated according to the movement of the sprayed mud flow towards the peripheral outer edge, and the calculation result is close to the real situation.

Description

technical field [0001] The invention relates to the technical field of mud volcano mud flow velocity calculation, in particular to a method for calculating the horizontal movement speed of submarine mud volcano mud flow. Background technique [0002] Mud volcanoes are surface structures formed by mud and gas deep in the strata moving upward through faults and diapirs and erupting out of the surface. They are distributed in the ocean and on land. Mud volcanoes are mostly dome-shaped and flat-top-shaped. . The gases released with the eruption of mud volcanoes are mostly hydrocarbon gases such as methane and ethane, and also contain gases such as hydrogen sulfide and carbon dioxide. These gases are important gas sources for the formation of natural gas hydrates in deep-sea sediments. Therefore, in the ocean, Mud volcanoes are an important surface feature of cold seep activity. The exploration of natural gas hydrate resources sometimes requires observation and exploration with ...

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Problems solved by technology

[0004] Different mud flow average speeds or eruption volumes of mud volcanoes lead to different erupted gas contents, which affect the formation of gas hydrates. Therefore, it is necessary to measure the average mud flow speed of mud volcanoes. There is no method for calculating the horizontal velocity of mudflow at submarine mud volcanoes, and it is impossible to measure the horizontal velocity of mudflow

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