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Experiment device and method for deepwater shaft multiphase flow containing natural gas hydrate phase changes

A technology of multiphase flow, natural gas, applied in the field of oil drilling

Active Publication Date: 2013-01-09
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

The experiment is of great significance to the study of multiphase flow, but there is no experimental research method for deepwater wellbore multiphase flow considering the phase transition of gas hydrate.

Method used

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  • Experiment device and method for deepwater shaft multiphase flow containing natural gas hydrate phase changes
  • Experiment device and method for deepwater shaft multiphase flow containing natural gas hydrate phase changes
  • Experiment device and method for deepwater shaft multiphase flow containing natural gas hydrate phase changes

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Embodiment Construction

[0036] Deep-water wellbore multi-phase flow experimental device with gas hydrate phase transition, including deep-water wellbore natural gas hydrate formation and decomposition simulation device, deep-water wellbore multi-phase flow simulation device with natural gas hydrate phase transition; deep-water wellbore natural gas hydrate formation and decomposition Analog devices such as figure 1 As shown, its function is: to carry out the simulation experiment of natural gas hydrate formation and decomposition in deep-water wellbore, and obtain the velocity of gas hydrate decomposition to produce methane in the deep-water wellbore under the simulated working conditions; device such as figure 2 As shown, its role is to conduct multiphase flow simulation experiments in deep-water wellbores containing gas hydrate phase transitions according to the obtained rate of gas hydrate decomposition to produce methane in deep-water wellbores.

[0037] Such as figure 1 As shown, the deep-wate...

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Abstract

The invention relates to an experiment device and a method for deepwater shaft multiphase flow containing natural gas hydrate phase changes. The experiment device comprises a deepwater shaft natural gas hydrate forming and decomposition simulator and a simulator for deepwater shaft multiphase flow containing natural gas hydrate phase changes. The experiment method comprises the steps of performing deepwater shaft natural gas hydrate forming simulation experiment; determining the amount of the formed natural gas hydrate; performing deepwater shaft natural gas hydrate decomposition simulation experiment; determining the decomposition speed of natural gas hydrate; and performing simulation experiment of the deepwater shaft multiphase flow containing natural gas hydrate phase changes. The experiment device and the method for deepwater shaft multiphase flow containing natural gas hydrate phase changes have the advantages of capable of achieving simulation of the deepwater shaft multiphase flow containing natural gas hydrate phase changes, including the natural gas hydrate forming simulation experiment, the natural gas hydrate decomposition simulation experiment, and the simulation experiment of effects of natural gas hydrate decomposition on shaft multiphase flow regularities in deepwater shafts.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling, and relates to a deep-water well bore multi-phase flow experimental device and an experimental method, in particular to a deep-water well bore multi-phase flow experimental device and an experimental method with phase transition of natural gas hydrate. Background technique [0002] As land oil and gas resources are decreasing day by day, it has become an inevitable trend for oil and gas exploration and development to turn to the sea. The development of deep-water oil and gas drilling and production technology has made deep-sea oil and gas drilling and production possible. The oil and gas drilling and production technology in deep water and ultra-deep waters is becoming a research and development hotspot in various countries. [0003] The law of multiphase flow in deepwater wellbore is the theoretical basis for the research and development of deepwater oil and gas drilling and productio...

Claims

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Application Information

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IPC IPC(8): E21B47/10E21B47/002E21B47/06
Inventor 孙宝江孙文超高永海
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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