首页
登录
职称英语
While Australians are aware of the expansion of conventional gas output in t
While Australians are aware of the expansion of conventional gas output in t
游客
2023-11-06
57
管理
问题
While Australians are aware of the expansion of conventional gas output in the Timor Sea, the most interesting development globally is the role taken by "unconventional gas", a technical term to describe coal-seam gas, shale gas and tight sands gas.
In Australia, major new coal-seam gas developments are being brought on stream in the Hunter Valley in New South Wales, and the Surat Basin in Queensland, but there are no developments here of shale gas or tight sands gas.
In the United States, due to technological developments over the past 20 years, about half of America’s natural gas now comes from these sources, rather than the conventional sources which include natural gas platforms in the Gulf of Mexico.
The switch towards unconventional gas is the result of higher gas prices and improved technology. Only in the United States, which has both massive consumption of energy and dwindling sources of conventional oil and gas, has unconventional gas been developed to any extent.
Similar developments can be expected in other countries as the technology developed in the United States is applied elsewhere.
Over the past decade, production from all three unconventional gas sources in the US has increased dramatically. The largest increase has been in tight gas, while the largest percentage increase has come from shale gas, where production has risen 300 percent. Driven by record well-drilling, proven reserves have also risen dramatically, so that unconventional gas now makes up more than half of the United States’ proved reserves of natural gas.
Significant probable and possible reserves, as well as a large undiscovered resource base, underscore the proved reserves.
Speaking at the recent World Gas Conference in Buenos Aires, Argentina, the president of the American Gas Association, Thomas E. Skains, referred to the dramatic impact of the growth of unconventional gas on the US energy industry, and more broadly, its economy.
He said: "Perhaps never in its history has the US domestic natural gas industry experienced more changes than now, and this is just the beginning."
"The largest change affecting the US market is an increasingly home-grown supply portfolio, led by unconventional onshore shale gas. The abundance of American natural gas resources is a fundamental change—a paradigm shift—in conventional wisdom."
Other technologies are also being developed in the United States. Conventional oil wells have a low recovery rate, because of the high cost of recovering "stranded" oil, which remains in the well as a result of a decline in oil pressure. Enhanced recovery techniques are being developed to improve oil recovery from conventional wells.
The increased production of unconventional gas has had an unexpected consequence for global natural gas prices.
Analysts expect the full impact of the unconventional gas revolution has yet to be felt, especially as its potential outside the United States has not even begun.
"It will probably take three or four years to get one’s arms around the scale of it," said Daniel Yergin, one of the world’s leading energy commentators.
A recent study by Cambridge Energy Resource Associates, which Yergin heads, concluded that unconventional gas reserves could be as much as 16 quadrillion cubic feet, or roughly double current proved reserves.
Predictions that the world is running out of oil and gas—popularised by Dr Paul Ehrlich in the 1970s and repeated endlessly in the media by David Suzuki and the Greens—are utterly wrong.
From News Weekly, October 31, 2009 [br] Which of the following has the largest increase in production over the past decade?
选项
A、natural gas
B、coal-seam gas
C、shale gas
D、tight gas
答案
D
解析
本题为细节题。根据题目的关键词找到第六段相关信息“The largest increase has been in tight gas”,可知应选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3163947.html
相关试题推荐
It’sreportedthatbytheendofthemonththeoutputofcementinthefactory_
Inspiteofthe______economicforecast,manufacturingoutputhasrisenslightl
WhileAustraliansareawareoftheexpansionofconventionalgasoutputint
WhileAustraliansareawareoftheexpansionofconventionalgasoutputint
WhileAustraliansareawareoftheexpansionofconventionalgasoutputint
ThemysteryoftheexpansionofseaicearoundAntarctica,atthesametime
ThemysteryoftheexpansionofseaicearoundAntarctica,atthesametime
ThemysteryoftheexpansionofseaicearoundAntarctica,atthesametime
ThemysteryoftheexpansionofseaicearoundAntarctica,atthesametime
Whatcanweinferaboutthecompany?[br][originaltext]W:Aftertheexpansion
随机试题
STUDYPROGRAMCoursesavailableon:.
IntheUnitedStatescommunitycollegesofferA、two-yearprogrammes.B、four-year
用雷氏夹法测水泥的安定性,若煮前两针尖间距离为A,煮后两针尖间距离为C,当C-A
双侧瞳孔缩小见于A.吗啡药物中毒 B.濒死状态 C.颠茄类药物中毒 D.颅
在证券投资顾问业务的流程中,投资顾问服务人员可以通过()方式向客户提供投资建
胰腺癌好发的部位是A.胰尾部 B.全胰腺 C.胰头、颈部 D.胰体、尾部
患者,女性,34岁,胸部锐器伤后半小时,出现呼吸困难,伴烦躁,出冷汗入急诊。查体
阅读下面材料,回答问题。 一步棋 许行 绿冠擎天,清风徐来。树下豪与一老者
甲未经乙许可,将乙的摄影作品《晚年》临摹成一幅相同主题的油画。甲在临摹时,对背景
电力网络的额定电压等于()的额定电压。 (A)发电机(B)升压变压器(C)电
最新回复
(
0
)