Can low hydration heat cement prevent the decomposition of natural gas hydrate under high pressure and low temperature?

2021 ◽  
pp. 104347
Author(s):  
Jin Li ◽  
Chunmei Zhang ◽  
Zhiqiang Wu ◽  
Gaoyin Zhang ◽  
Qiang Gao ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Hydration Heat ◽  
Natural Gas Hydrate

Natural gas exploitation by carbon dioxide from gas hydrate fields—high-pressure phase equilibrium for an ethane hydrate system

1998 ◽  
Vol 212 (3) ◽  
pp. 159-163 ◽  
Author(s):  
S Nakano ◽  
K Yamamoto ◽  
K Ohgaki
Keyword(s):  
High Pressure ◽  
Phase Equilibrium ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Phase Behaviour ◽  
High Pressure Phase ◽  
Natural Gas Hydrate ◽  
Public Attention ◽  
Hydrate Water ◽  
Pressure Phase

Natural gas hydrate fields, which have a large amount of methane and ethane deposits in the subterranean Arctic and in the bottom of the sea at various places in the world, have become the object of public attention as a potential natural gas resource. Here the idea of natural gas exploitation from natural gas hydrate fields combined with CO2 isolation using CO2 hydrate has been presented. As a fundamental study, high-pressure phase behaviour for the ethane hydrate system was investigated in a high-pressure cell up to a maximum pressure of 100 MPa, following a previous study of CO2 and methane hydrates. Consequently, the phase equilibrium relationship of an ethane hydrate—water—liquid ethane mixture was obtained in the temperature range from 290.4 to 298.4 K and over a pressure range of 19.48 to 83.75 MPa. The observed phase boundary corresponds to the three-phase coexisting line with a non-variant quadruple point of ethane hydrate—water—liquid ethane—gaseous ethane at 288.8 K and 3.50 MPa, similar to the CO2 hydrate—water—liquid CO2 system.

scholarly journals Research on Prediction Methods of Wellbore Hydrate Formation of Ultra-Deep Gas Wells in Northwest Sichuan

2021 ◽  
Vol 329 ◽  
pp. 01076
Author(s):  
Qilin Liu ◽  
Jian Yang ◽  
Lang Du ◽  
Jianxun Jiang ◽  
Dan Ni ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Natural Gas Hydrate ◽  
Gas Wells ◽  
Prediction And Control ◽  
Sulfur Containing ◽  
High Temperature High Pressure

According to the formation and handling situation of hydrate in ultra-deep high-pressure sulfurcontaining gas wells in northwest Sichuan, the formation conditions of natural gas hydrate was studied based on previous studies on hydrate, the molecular dynamics of natural gas hydrate and the multiphase flow law of high-temperature high-pressure high-sulfur-containing gas wellbore were combined, and the pressure prediction model with high-temperature high-pressure sulfur-containing gas wells as the target was built. The chemical and physical control methods of wellbore hydrate plugging were discussed to provide the scientific theoretical basis for the prediction and control of hydrate in high-temperature high-pressure high-sulfurcontaining gas wells.

Natural Gas Hydrate Formation and Decomposition in the Presence of Kinetic Inhibitors. 1. High Pressure Calorimetry

2011 ◽  
Vol 25 (10) ◽  
pp. 4392-4397 ◽  
Author(s):  
Nagu Daraboina ◽  
John Ripmeester ◽  
Virginia K. Walker ◽  
Peter Englezos
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Natural Gas Hydrate ◽  
Gas Hydrate Formation

Investigation of natural gas hydrate slurry flow properties and flow patterns using a high pressure flow loop

2016 ◽  
Vol 146 ◽  
pp. 199-206 ◽  
Author(s):  
Lin Ding ◽  
Bohui Shi ◽  
Xiaofang Lv ◽  
Yang Liu ◽  
Haihao Wu ◽  
...  
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Flow Patterns ◽  
Flow Properties ◽  
Natural Gas Hydrate ◽  
Slurry Flow ◽  
Flow Loop ◽  
Pressure Flow

scholarly journals Experimental study on pore forming characteristics of simulated hydrate broken by high pressure water jet

2021 ◽  
Vol 2108 (1) ◽  
pp. 012094
Author(s):  
Zijian Dai ◽  
Hualin Liao ◽  
Ke Yang ◽  
Feng Sun
Keyword(s):  
Experimental Study ◽  
High Pressure ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Large Scale ◽  
Water Jet ◽  
Natural Gas Hydrate ◽  
Pressure Water ◽  
Forming Characteristics ◽  
High Pressure Water Jet

Abstract Natural gas hydrate is a research hotspot at present. However, the current exploitation technology can’t meet the demand of commercial exploitation of natural gas hydrate. In order to improve the efficiency of hydrate production, this paper believes that the idea of using high-pressure water jets for sandblasting perforation is expected to constitute an effective way to extract natural gas hydrates. The experimental study on sandblasting perforation and hydraulic slitting of simulated reservoirs was carried out by using large-scale ground fracturing equipment and full-scale hydraulic blasting perforating equipment. The driving pressure is analysed under the action of high-pressure water jet. The influence of diameter on the effect of simulated reservoir fracture. The results show that the diameter of the perforation increases with the increase of pressure; This experimental study can provide an experimental basis for the use of abrasive jet blasting perforating technology to improve the efficiency of natural gas hydrate production.

Investigation on natural gas hydrate dissociation from a slurry to a water-in-oil emulsion in a high-pressure flow loop

Fuel ◽  
2018 ◽  
Vol 233 ◽  
pp. 743-758 ◽  
Author(s):  
Bo-Hui Shi ◽  
Shang-Fei Song ◽  
Xiao-Fang Lv ◽  
Wen-Qing Li ◽  
Ying Wang ◽  
...  
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Natural Gas Hydrate ◽  
Flow Loop ◽  
Hydrate Dissociation ◽  
Pressure Flow ◽  
Oil Emulsion ◽  
Water In Oil Emulsion

A high pressure holding and cutting device for sampling tube of natural gas hydrate

2018 ◽  
Author(s):  
Hai Zhu ◽  
Jiawang Chen ◽  
Yuan Lin ◽  
Peihao Zhang ◽  
Huangchao Zhu ◽  
...  
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Natural Gas Hydrate ◽  
Sampling Tube
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