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柯克亚集输首站生产的轻烃与原油一同进入原油储罐,在常温常压下,轻烃中的C1~C4组分极易挥发损耗,造成油气浪费和环境污染。结合目前气田的生产现状及集输首站轻烃的组分分析结果,对现有装置进行相关的技术优化,研究出一套适合轻烃密闭回收同时能就近生产液化气产品的回收工艺:将轻烃与原油单独回收,原油进入储罐生产,轻烃则输往注气站生产液化气。优化后,大大提高了液化气产量和轻烃综合利用率;降低了原油储罐的油气损耗,减少了环境污染;原油在长输管道中的气相流减少,提高了原油管输安全性。伴随国家安全环保要求日趋严格,中国石油以效益优先为原则的战略转变,在各油气田的发展过程中,轻烃回收利用这种以安全环保优先,减少环境污染,提高油田整体效益的应用将有很好的推广前景。
The light hydrocarbons produced at the first stop of Ke’kia gathering and crude oil enter the crude oil storage tank. At normal temperature and pressure, the C1-C4 components in light hydrocarbons are extremely volatile and volatile, causing oil and gas waste and environmental pollution. Combining with the current production status of the gas field and the component analysis result of the light hydrocarbon at the first station of the gathering and transportation, the related equipment optimization is carried out, and a set of recovery processes suitable for the closed recovery of light hydrocarbons and the production of liquefied gas products nearby are put forward: Recovery of light hydrocarbons and crude oil alone, the crude oil into the tank production, light hydrocarbons are sent to the gas station for the production of liquefied gas. After optimization, the liquefied gas production and the comprehensive utilization rate of light hydrocarbons are greatly improved; the oil and gas loss of the crude oil storage tank is reduced and the environmental pollution is reduced; the gas phase flow in the long-distance pipeline is reduced and the safety of crude oil pipeline transportation is enhanced. With the increasingly stringent national safety and environmental protection requirements, PetroChina has changed its strategy based on the principle of giving priority to efficiency. During the development of various oil and gas fields, the application of light hydrocarbon recycling, which takes priority over safety and environmental protection, reduces environmental pollution and improves the overall efficiency of the oilfield, will have Very good promotion prospects.