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
44
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
Alldaylong,youareaffectedbylargeforces.Genesinfluenceyourintelli
TheOriginsofTheatreA)Inseeking
Ispentagoodpartofthelastthreeweekshelpingayoungfriendlookfor
校对题:按照原稿纠正校样中的错误;若认为原稿有差错,用黑色墨水笔以校对质疑的方式
Theworld'senergywatchdoghassounded
下列哪一条动脉不是来自阴部内动脉A.痔下动脉 B.会阴动脉 C.阴唇动脉
药物作用于机体对不同脏器作用不同,这是药物的A.副反应 B.毒性反应 C.后
尽管回购是一种高质量的抵押借款,但仍然具有一定的信用风险和利率风险。()
某峡谷坝址区,场地覆盖层厚度为30m,欲建坝高60m。根据《水利水电工程地质勘察
下列各项关于债券的说法中,不正确的有()。A.债券的付息方式可能是半年一次、一
最新回复
(
0
)