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单词 oil trap
释义

> as lemmas

oil trap
oil trap n. (a) a device in which oil can be trapped, or which makes use of oil to trap something else; (b) Geology an underground rock formation in which an accumulation of oil is trapped; cf. trap n.1 8c.
ΚΠ
1863 Sci. Amer. 10 Oct. (heading) 231/2 A coal oil trap.]
1927 Science 29 July p. vii (advt.) A separate oil trap, for insertion in the line, protects same from oil invasion.
1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles xii. 282 Salt-dome structures..commonly give rise to oil traps, salt being capped by gypsum.
1993 P. Kearey Encycl. Solid Earth Sci. 141/2 Various lines of evidence suggest that crude oil is derived from source sediments and migrates into reservoir rocks to form accumulations beneath oil traps.
extracted from oiln.1
oil trap
c. Geology. An underground rock formation in which an accumulation of oil or gas is trapped; so oil trap.
ΘΚΠ
the world > the earth > structure of the earth > structural features > formations by contents > [noun] > containing minerals
field1672
oil pool1863
oil sand1875
trap1920
source rock1931
trend1939
the world > the earth > minerals > mineral sources > [noun] > source rock > containing oil or gas
reservoir1847
oil pool1863
reservoir rock1877
pool1902
trap1920
trend1939
1920 Econ. Geol. XV. 249 Trap structures contain the majority of the important accumulations of oil.
1938 D. Hager Pract. Oil Geol. (ed. 5) iii. 56 Areas of heavily metamorphosed rocks the unfavorable for gas and oil accumulations, unless the oil has migrated to traps in such rocks.
1946 Nature 28 Dec. 931/2 In considering the distribution of structures which might act as oil-traps, the field of inquiry may be limited to those geological formations which provide some indication of the presence of oil.
1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles xii. 282 Salt-dome structures..commonly give rise to oil traps, salt being capped by gypsum.
1977 Offshore Engineer May 38/1 Seismic evidence suggests thick deeply buried deposits onlapping old ridges which may form hydrocarbon traps.
extracted from trapn.1
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