Device and method for measuring hydrate reservoir decomposition rate in drilling process

A technology of decomposition rate and hydrate, which is used in surveying, earthwork drilling, wellbore/well components, etc. It can solve the problems of unsimulated, unrealistic reflection of hydrate formation, and many assumptions, so as to ensure drilling safety. Effect

Active Publication Date: 2015-12-23
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional numerical simulation method involves many assumptions, which are quite different from the actual situation, and cannot truly reflect the actual hydrate layer conditions.
In recent years, some scholars have begun to design simulation experimental devices to monitor the hydrate layer in the indoor environment, but they have not simulated the impact of the gri

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for measuring hydrate reservoir decomposition rate in drilling process
  • Device and method for measuring hydrate reservoir decomposition rate in drilling process
  • Device and method for measuring hydrate reservoir decomposition rate in drilling process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Such as figure 1 As shown, the device for measuring the decomposition rate of hydrate reservoirs and the gas volume of hydrate decomposition during drilling includes: a hydrate formation and decomposition unit, an auxiliary unit and a measurement unit. The hydrate formation and decomposition unit simulates the environmental conditions of the hydrate reservoir during the drilling process, providing a place for the formation and decomposition of hydrates; the auxiliary unit provides gas and liquid sources for the formation of hydrates; the measurement unit measures the concentration of hydrates in the reservoir Decomposition rate and decomposition gas volume.

[0017] The hydrate generation and decomposition unit includes: a constant temperature box 101, a reaction kettle 102, a drilling rig 108, and a first liquid storage container 401; a reaction kettle 102 is placed in the constant temperature box 101, and a bracket 112 is fixed on the top of the temperature box 101, a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of natural gas development, and particularly relates to a device and a method for measuring hydrate reservoir decomposition rate in a drilling process. The device for measuring hydrate reservoir decomposition rate and hydrate decomposition air flow in the drilling process comprises a hydrate generating and decomposing unit, an auxiliary unit and a measuring unit. The hydrate generating and decomposing unit simulates environmental conditions of a hydrate reservoir in the drilling process, and provides a place for generation and decomposition of hydrate; the auxiliary unit provides an air source and a liquid source for generation of the hydrate; and the measuring unit measures the decomposition rate and the decomposition air flow of the hydrate reservoir. By the device and the method, conditions of hydrate reservoir decomposition and output gas after decomposition of a hydrate reservoir can be simulated in a drilling process, and safety of deepwater drilling can be evaluated.

Description

technical field [0001] The invention belongs to the field of natural gas development, and in particular relates to a device and a method for measuring the decomposition rate of a hydrate reservoir during drilling. Background technique [0002] As an important marine energy source, natural gas hydrate has the advantages of large reserves, high energy density, shallow burial, and wide distribution. It is an ideal alternative to traditional coal and petroleum energy. The United States, Russia, Canada, Germany, Japan, South Korea and other countries have successively positioned the development of gas hydrates as the commanding heights of the national science and technology strategy, invested a lot of manpower and material resources, carried out a series of key researches, and achieved certain results. my country also conducted research on natural gas hydrate at the end of the last century, and regarded the efficient exploitation of natural gas hydrate as a long-term goal. [00...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E21B49/00E21B47/00
Inventor 高永海孙宝江李昊孙文超陈野
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap