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Device for simulation of well drilling in frozen soil zone

A technology of permafrost zone, simulation experiment device, applied in drilling equipment, earth-moving drilling, wellbore/well components, etc.

Active Publication Date: 2018-06-01
CHINA UNIV OF PETROLEUM (EAST CHINA) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the harsh geographical environment in the polar regions, it is difficult to carry out a series of complex experiments in the field cost-effectively. Therefore, there is an urgent need for a simulation device for the wellhead settlement problem during drilling in the polar tundra

Method used

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  • Device for simulation of well drilling in frozen soil zone
  • Device for simulation of well drilling in frozen soil zone
  • Device for simulation of well drilling in frozen soil zone

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Embodiment Construction

[0039] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0040] figure 1 It is a structural block diagram of a device for simulating drilling in a permafrost zone according to an embodiment of the present invention. Such as figure 1 As shown, the device includes: a simulated experimental device 100 for simulating drilling in the permafrost zone. The simulated experimental device includes simulated frozen soil, a simulated well section, a simulated drill string and a simulated drill bit. The simulated well section is formed in the In the simulated frozen soil, when the simulated drill string and the simulated drill bit are arranged in ...

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Abstract

The invention provides a device for simulation of well drilling in a frozen soil zone and belongs to the field of well drilling. The device comprises a simulation experiment device, a hot water circulating injecting device and a data collecting and analyzing device, and the simulation experiment device is used for simulating well drilling in the frozen soil zone. The simulation experiment device comprises simulated frozen soil, a simulated well part, a simulated drilling column and a simulated drill bit, the simulated well part is formed in the simulated frozen soil, when the simulated drilling column and the simulated drill bit are arranged in the simulated well part, a gap is reserved between the simulated drilling column and the well wall of the simulated well part, and the simulated well part can downwards move. The hot water circulated injecting device is used for injecting a drilling fluid into the simulated drilling column, controlling the temperature of the drilling fluid and enabling the drilling fluid to be circulated in the simulated drilling column, the simulated drill bit, the gap and the hot water circulated injecting device. The data collecting and analyzing device is used for collecting parameters of the simulated well part in the downwards-moving process and determining the change rule of the parameters along with downward moving of the simulated well part. According to the device for simulation of well drilling in the frozen soil zone, the rule of well part sinking in the process of well drilling in the frozen soil zone can be simulated, and thus reliablereference is provided for actual well drilling.

Description

technical field [0001] The invention relates to the field of well drilling, in particular to a device for simulating well drilling in permafrost zones. Background technique [0002] Since the beginning of the 21st century, the demand for oil and natural gas resources in countries around the world has risen linearly. However, with the continuous reduction of oil and gas resources in conventional areas, the development of oil and gas resources worldwide has gradually developed to the deep sea and polar tundra. In 2009, the U.S. Geological Survey released a report stating that the unproven oil reserves and natural gas reserves in the Arctic accounted for 13% and 30% of the oil and gas reserves in conventional areas, respectively, and the polar regions may become another core area for oil and gas development after the ocean. Petroleum companies in countries such as Russia, Norway, the United States and Canada have all developed a strong interest in polar oil and gas resources, a...

Claims

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Application Information

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IPC IPC(8): E21B7/00E21B47/00
CPCE21B7/00E21B47/00
Inventor 王志远廖友强孙宝江刘大辉滕瑶陈昱
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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