Both oil and gas are less dense than water, so they generally tend to rise upward through water-saturated rock and sediment.
石油和天然气的密度都比水小，所以二者通常会浮在被水浸泡的岩石和沉积物的表层。
Given an accurate map of the rock under the ground, geologists can recognise places where oil may be trapped.
鉴于一个在地下岩石准确的地图，地质学家可以识别在对石油可能被困的地方。
Drilling further down wasn't the best solution though, because eventually the well would go below the oil and hit rock bottom.
不过，钻地更深并不是最佳的策略，因为最终钻头会钻到油层以下，撞上底部岩石。
For there creatures to become oil, it was necessary that they should be imprisoned between layers of rock for an enormous length of time.
这些生物要变成石油，必须被密封在岩石之中很长时间。
Used by all the major oil companies, programs like GeoProbe from Halliburton (HAL) subsidiary Landmark produce clear 3d images of rock structures under the seabed.
像GeoProbe(由Halliburton公司出品)就是一个被大多数石油开采公司采用的程序，这个程序附带的地标装置就能对海底下的岩石结构生成清晰的三维图像。
Oil companies are drilling into rock layers where every square centimeter (0.16 square inch) is subject to pressure equivalent to the weight of a medium-sized car.
石油公司所开采的岩层上，每平方厘米所承受的压力相当于一辆中等大小的汽车。
He does not believe that the technique can predict flow rates, even from rock that contains a lot of hydrocarbons-and flow rates are crucial to an oil field's economics.
他不相信这种技术能预测石油的流量，即使对于含有大量碳氢化合物的岩石也无法预测——石油流量是油田经济中至关重要的指标。
Hence the Shenzhen Sam's Club also stocks gallon drums of cooking oil, plastic cups and other everyday items at rock-bottom prices.
因此深圳山姆会员店里存有大量低廉的桶装食用油、塑料杯和其他日用品。
Extracting the newly-found oil, buried beneath thousands of metres of water, rock and salt, will be challenging.
新发现的石油埋藏在数千米厚的海水、岩石和盐层之下，萃取起来面临挑战。
The computed rock compressive strength with the established regression model can support exact compressive strength for the establishing of sand prediction model for oil well.
利用该回归模型进行抗压强度的计算，可以为建立油井出砂的理论预测模式提供较为准确的岩石抗压强度数据。
In Latin, the name means "rock oil". Petroleum is a fossil fuel.
在拉丁语中，名字的意思为“石头中的油”。石油是一种化石燃料。
Steranes and terpanes exist in saturated hydrocarbon component of oil and source rock, and they are usually identified by gas chromatogram-mass spectrum.
甾萜类化合物存在于原油和生油岩的饱和烃组分中，通常用色谱-质谱法鉴定。
Gravity drive is effective in the early stages of reservoir development only when there is high relief in the reservoir rock and oil column.
重力驱动仅在储层岩石中存在高闭合度和油柱的情况下在储层开发的早期是有效的。
An imbibition test is a comparison of the imbibition potential of water and oil into a rock.
毛细运移测试是水和油进入岩石的吸液位势的一种比较。
The article deals with the oil and rock mineral property according to the molecular orbit theory and the energy band theory of the solid material.
该文依据分子轨道理论和固体物质的能带理论，对石油及岩石矿物的荧光性成因进行了论述。
In latin , the name means " rock oil . " petroleum is a fossil fuel.
在拉丁语里，这个名字的意思是“石油” 。
AVO is a seismic exploration technology using the characteristics of amplitude variation versus offset to recognize the rock types and oil-gas reservoir.
是利用振幅随偏移距变化特征分析和识别岩性和油气藏的地震勘探技术。
The rock in oil engineering is under the action of high temperature and high pressure with deep deposition.
石油工程中岩石特点是埋藏深、受高温、高压的作用。
Due to far away from the hydrocarbon source rock, oil-gas migration and building-up conditions became the main controlling factor of the formation trap reservoir forming.
由于距离烃源岩较远，油气运移聚集条件成为地层圈闭成藏的主要控制因素。
Material security has been offered from hydrocarbon source rock of containing organic matter for the generation of oil and gas.
富含有机质的烃源岩为油气的生成提供了物质保障；
We can only measure the resistance of the rock to detect the remnant oil in the rock because of being difficult to measure it directly.
但由于含油饱和度很难直接测量，因此只能通过测量岩层的电阻率来确定含油饱和度。
We can only measure the resistance of the rock to detect the remnant oil in the rock because of being difficult to measure it directly.
但由于含油饱和度很难直接测量，因此只能通过测量岩层的电阻率来确定含油饱和度。
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