1
an oilfield in [place]
oilfield 是可数复合名词，复数形式为 oilfields。
They discovered an oilfield in the desert.
他们在沙漠中发现了一个油田。
油田
oilfields — plural of oilfield
先理解核心含义，再看它在真实句子里的用法。
油田
a region that contains large amounts of petroleum, especially one with producing oil wells
They discovered an oilfield in the desert.
他们在沙漠中发现了一个油田。
油田
n. a region rich in petroleum deposits (especially one with producing oil wells)
Many workers moved to the oilfield to find jobs.
许多工人搬到油田去找工作。
The company opened a new oilfield in the desert.
公司在沙漠里开辟了一个新油田。
Oilfields in this region have produced crude oil for decades.
这个地区的油田已经生产原油几十年了。
oilfield 是可数复合名词，复数形式为 oilfields。
They discovered an oilfield in the desert.
他们在沙漠中发现了一个油田。
develop 在这里表示“开发”，与 oilfield 搭配很常见。
The company plans to develop the oilfield.
该公司计划开发这个油田。
用复数形式 oilfields 常泛指油田作业区。
He has worked in the oilfields for ten years.
他在油田工作了十年。
Not this
Many oilfield are located in the Middle East.
Use this
Many oilfields are located in the Middle East.
oilfield 是可数名词，受 many 修饰时要用复数 oilfields。汉语中“油田”没有形态变化，所以容易漏掉词尾 -s。
Not this
He is an engineer at oilfield.
Use this
He is an engineer at an oilfield.
oilfield 是可数单数名词，前面需要冠词；因为 oilfield 以元音音素开头，所以用 an。汉语没有冠词系统，因此容易漏掉。
Not this
The company drilled an oilfield in the desert.
Use this
The company drilled an oil well in the desert.
oilfield 指含石油的区域，oil well 才是钻探出的井。汉语“油田”与“油井”意思不同，不能用 oilfield 代替 oil well。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
油田服务
The company provides oilfield services to major petroleum producers.
该公司为大型石油生产商提供油田服务。
油田设备
They manufacture oilfield equipment used in drilling operations.
他们制造用于钻井作业的油田设备。
油田工人
Many oilfield workers live in temporary camps near the wells.
许多油田工人住在油井附近的临时营地。
油田开发
Oilfield development in the region has attracted foreign investment.
该地区的油田开发吸引了外国投资。
油田生产
Oilfield production declined after years of operation.
经过多年运营，油田产量下降了。
海上油田
The offshore oilfield was discovered last year.
这个海上油田是去年发现的。
油田工人（贬义或自嘲用法）
He grew up calling himself oilfield trash, but he was proud of the hard work.
他从小自嘲是油田工人，但他为这份辛苦的工作感到自豪。
油田寡妇（丈夫常年在油田工作、妻子独守家中的说法）
She calls herself an oilfield widow whenever her husband is away on a long rotation.
每当丈夫长时间轮班不在家时，她就自称为油田寡妇。
Use oilfields naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
oil（油）+ field（田地）＝油田；想象一片田里冒出石油。
语域：neutral 常见场景：石油工业、新闻报道、地质勘探 oilfield 是标准的行业用语，通常用于石油勘探、开采和新闻报道等场景，属于中性偏正式的词汇；口语中较少单独使用，但并无明显非正式色彩。
词尾 -field 都读 /fiːld/（如 field、airfield、battlefield），与 oilfield 的后半部分拼写和读音一致；yield /jiːld/ 和 shield /ʃiːld/ 的 -ield 也读 /iːld/，但以 /j/、/ʃ/ 开头；oil /ɔɪl/ 只与前半部分拼写相同，不构成押韵。
Dictionary facts from ECDICT, WIKTIONARY.