2017
DOI: 10.26804/ager.2017.02.05
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An analysis of the key safety technologies for natural gas hydrate exploitation

Abstract: Natural Gas Hydrate (NGH) is a high combustion efficiency clean energy and its reserve is twice as that of natural gas and petroleum, so NGH is the potential resource which could overcome the increasing energy assumption. One of the essential aspects during the exploitation of NGH is to avoid risk, and here in this work, we summarized the relevant management experience to study the critical safety risk in the exploitation of natural gas hydrate. The problems that must be resolved during NGH exploitation were i… Show more

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Cited by 23 publications
(10 citation statements)
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“…5 The percentages of the above four types of reservoirs in nature are expected to be 14%, 5%, 6%, and 75%, respectively. 6 At present, Class 4, representing the largest content, is hard to be a candidate for gas production because of its dispersed distribution. 7 Among the other three classes, Class 1 hydrate accumulations are regarded as the most promising targets since the proximity to the hydration equilibrium at the hydrate-gas interface is favorable to gas recovery.…”
Section: Introductionmentioning
confidence: 99%
“…5 The percentages of the above four types of reservoirs in nature are expected to be 14%, 5%, 6%, and 75%, respectively. 6 At present, Class 4, representing the largest content, is hard to be a candidate for gas production because of its dispersed distribution. 7 Among the other three classes, Class 1 hydrate accumulations are regarded as the most promising targets since the proximity to the hydration equilibrium at the hydrate-gas interface is favorable to gas recovery.…”
Section: Introductionmentioning
confidence: 99%
“…That is why specialists are searching for new innovative technologies to exploit gas hydrate deposits. Sasaki et al [5] presented a system of hot water injection with a pair of horizontal wells to exploit the NGH. The technology of hot water cyclic steam stimulation with a single well that has been traditionally used to improve the recovery effect in a superheavy oil reservoir [6] proved to be effective for NGH production augmentation.…”
Section: Introductionmentioning
confidence: 99%
“…The weak structure of these reservoir rocks may lead to serious formation damage and cap rock failure during the gas extraction and hydrate dissociation processes. The risk of geological hazards that may occur during the hydrate production process must be avoided [13]. Hydrate dissociation that occurs in the reservoir releases both free gas and water, thereby influences the pore pressure.…”
Section: Introductionmentioning
confidence: 99%