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首页> 外文期刊>Chinese science bulletin >Reservoir petroleum inclusion GOR characteristics and geological significance from the Lunnan Low Uplift of the Tarim Basin
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Reservoir petroleum inclusion GOR characteristics and geological significance from the Lunnan Low Uplift of the Tarim Basin

机译：塔里木盆地轮南低隆起储层石油包裹体GOR特征及地质意义

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摘要

There were different opinions about the origin of petroleum property variations in the Lunnan Low Uplift of the Tarim Basin. In this paper, a software PVTsim was applied to investigate the compositions of the petroleum fluid inclusions in different sets of reservoir rocks from this area. The results show that there are three phases of petroleum inclusions in the Ordovician carbonate reservoirs and two types of petroleum inclusions in the Carboniferous and Triassic sandstone reservoirs. The three phases of the petroleum inclusions from the Ordovician reservoir rocks have similar compositions with the type 1 petroleum inclusion from the carboniferous and Triassic reservoir rocks, but the type 2 petroleum inclusion from the carboniferous and Triassic reservoirs is characterized by higher content of Ci and higher GOR values. With the combination of the geological background, it was inferred that the current petroleum pools in the Lunnan Low Uplift were formed mainly by two phases of petroleum charges, one is normal oils and another light oils, and both occurred during the late Tertiary. The light oils came from eastern-south direction, and migrated and charged into the reservoirs upward and toward northern west directions. On the basis of this, it was believed that the multiphases of the petroleum charges and some composition dissipation caused by the preserved condition changes would be the main reason of the petroleum property variations in the petroleum pools in this area.
机译：塔里木盆地轮南低隆起带油气性质变化的成因有不同的看法。在本文中，使用PVTsim软件调查了该地区不同组储集岩中石油流体包裹体的成分。结果表明，奥陶系碳酸盐岩油藏分为三个阶段，石炭纪和三叠纪砂岩油藏有两种类型的石油包裹体。奥陶纪油藏的石油包裹体的三相与石炭纪和三叠纪油藏的第一类石油包裹体具有相似的成分，但石炭纪和三叠纪油藏的第二类石油包裹体具有较高的Ci含量和较高的特征。 GOR值。结合地质背景，可以推论出轮南低隆起目前的油气藏主要由两个阶段的石油充注形成，一个是普通油，另一个是轻油，都发生在第三纪晚期。轻质油从东-南方向进入，并向上并向西北方向迁移并充入油藏。在此基础上，人们认为，由于装料条件的变化而引起的石油装料的多相和某些成分的散失将是该地区油藏中石油性质变化的主要原因。

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