首页
登录
职称英语
Oil pools are valuable underground accumulations of oil, and oil fields are
Oil pools are valuable underground accumulations of oil, and oil fields are
游客
2024-01-03
47
管理
问题
Oil pools are valuable underground accumulations of oil, and oil fields are regions underlain by one or more oil pools. When an oil pool or field has been discovered, wells are drilled into the ground. Permanent towers, called derricks, used to be built to handle the long sections of drilling pipe. Now portable drilling machines are set up and are then dismantled and removed. When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it. Although this rise of oil is almost always carefully controlled today, spouts of oil, or gushers, were common in the past. Gas pressure gradually dies out, and oil is pumped from the well. Water or steam may be pumped down
adjacent
wells to help push the oil out. At a refinery, the crude oil from underground is separated into natural gas, gasoline, kerosene, and various oils. Petrochemicals such as dyes, fertilizer, and plastic are also manufactured from the petroleum. [br] Which of the following can be inferred from paragraph 3 about gushers?
选项
A、They make bringing the oil to the surface easier.
B、They signal the presence of huge oil reserves.
C、They waste more oil than they collect.
D、They are unlikely to occur nowadays.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3330092.html
相关试题推荐
Thedeveloped(coutries)oftheworldare(using)upvaluable(resources)atar
TheSun,theMoon,andEarthhavemagneticfields,and______evidencethatthest
Ofcourse,thereisfarmoreoilundergroundthancanberecovered.Itmayb
Oilpoolsarevaluableundergroundaccumulationsofoil,andoilfieldsare
Beginningaround1830,theUndergroundRailroadhelpedthousandsofescapedslav
Thechipmunkbuildsitsnestineitheranundergroundburrow______.A、inahollow
Semipreciousstonesare______preciousstonessuchasdiamonds.A、lessvaluableth
ThenumberofAwomenwhoBenternontraditionalfieldsChavebeenDincreasingste
SomepeoplesaythattheInternetprovidespeoplewithalotofvaluableinforma
Mr.JasonMatthews,______collectionofpicturesavaluableRembrandwasgivento
随机试题
(1)MohamedNasheed,thedapperyoungpresidentoftheMaldives,thinksthej
SoengrossedinhiseffortswouldGauginbecomethathebarelynoticedthepassi
Britainisfacinga【C1】______riseinitsratpopulation【C2】______grow
Itisimperativethatstudents______theirtermpapersontime.[2004]A、handin
Mr.LihadanAmericanstyleandhe______likeanAmerican.A、thoughtB、thinksC
A.0 B.2 C.3 D.5
共享式以太网采用的介质访问控制方法是()。A.CSMA/CD.B.CSMA/CA
系统性红斑狼疮患者使用糖皮质激素时,正确的服法为A.饭前服药 B.用药期间给予
已知2010年该省限额以下批发和零售企业零售额相比于2009年同期增幅为18
王先生文化程度较低,去年下岗失业在家,至今未找到工作。女儿在读大学,每年学费和生
最新回复
(
0
)