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

A technology of horizontal motion and volcanic mud, applied in the directions of calculation, computer-aided design, design optimization/simulation, etc., can solve the problems of affecting the formation of natural gas hydrate, unable to measure the horizontal motion speed of mud flow, etc., and achieve the effect of simple calculation process

Active Publication Date: 2020-02-07
GUANGZHOU MARINE GEOLOGICAL SURVEY
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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 a

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

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[0020] Hereinafter, the present invention will be further described with reference to the drawings and specific implementation schemes.

[0021] Such as Figure 1 to Figure 3 As shown, a method for calculating the horizontal movement velocity of mud volcanic flow on the seabed includes the following steps:

[0022] Step 1: Determine the shape of the erupting mud flow through geophysical measurement of the submarine mud volcano, and obtain the mud volcano shape from the water depth data. The mud volcano shape can reflect the ridge structure of the mud flow and the shape of the mud volcano. According to the mud volcano shape, obtain the mud volcano erupting mud. According to the back reflection data of the mud flow from the mud volcano eruption, it is determined that the shape of the mud flow is a perfect circle or irregular ellipse, or the shape of the mud flow after the eruption of the mud volcano can be directly observed by camera and other methods Determine whether the erupted m...

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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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Application Information

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IPC IPC(8): G06F30/28G06F113/08
Inventor 尉建功吴婷婷
Owner GUANGZHOU MARINE GEOLOGICAL SURVEY
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