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测定了加蓬A油田6口油井油样的蜡含量、倾点、黏度、析蜡点和屈服值等指标。通过测定这些影响原油流变性的关键指标,得出,加蓬A油田的原油为高含蜡、高倾点原油,蜡组分中高碳重质组分权重很大;蜡含量高达34.04%以上,平均倾点为28℃,平均析蜡点为47.5℃,平均屈服值为159.11Pa。防蜡剂FLO-1在加量为100×10-4时,对TST-B09H井油样的防蜡率可以达到91.86%,对于NZOB-Z05H井油样可以达到81.47%。这为加蓬原油的开采、运输、加工等提供了有效的基础数据,也为油井现场清防蜡工作,特别是对化学清防蜡剂的筛选提供直接的理论支持。
The wax content, pour point, viscosity, wax breaking point and yield value of six oil wells in Gabon A Oilfield were measured. By measuring these key indicators that affect the rheology of crude oil, it is concluded that the crude oil in Gabon A Oilfield is highly waxy and high pour point crude oil, and the weight of high carbon heavy components in wax components is very high. The wax content is as high as 34.04% Pour point of 28 ℃, the average wax point of 47.5 ℃, the average yield value of 159.11Pa. When the addition amount of FLO-1 is 100 × 10-4, the anti-wax rate of the FLT-B09H oil sample can reach 91.86% and the oil sample of NZOB-Z05H can reach 81.47%. This provides effective basic data for the extraction, transportation and processing of Gabon crude oil. It also provides direct theoretical support for the paraffin wax removal work in the well site, especially for the screening of chemical paraffin waxes.