陆梁油田底水油藏高含水期提液方法研究

A Study on Liquid Extraction Method in High Water Cut Stage of Bottom Water Reservoir in Luliang Oilfield

吴丛文 马艳清 范赛华 武洪菊 谢辉

WU Congwen MA Yanqing FAN Saihua WU Hongju XIE Hui

中国石油新疆油田分公司陆梁油田作业区, 新疆 克拉玛依 834000

Luliang Oilfield Operation Area, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China

根据陆梁油田底水油藏的实际生产问题，综合利用地质研究、测井解释、试油试采、生产测试和开发动态等资料，动、静结合对典型底水油藏的开发特征和提液效果进行分析，明确了影响提液差异性的关键因素，通过对剩余油进行分类描述明确了提液挖潜的机理和潜力；本次研究取得的成果结合实际生产动态和机理模型，明确了油层厚度、提液时机、单井采出程度、避水厚度等对提液效果的影响规律。从地质角度而言，油层厚度和油厚比是影响提液效果的客观条件，需要在提液选井时重点考虑；从开发角度而言，提液幅度和提液时机是影响提液效果的关键因素，需要在制定提液方案时充分论证；对于底水油藏，避水厚度对最大采液速度的限制更为重要。

According to the problems in actual production of bottom water reservoir in Luliang Oilfield, the development characteristics and liquid extraction effect of typical bottom water reservoir are analyzed through comprehensive utilization of geological research, logging interpretation, production test, production test and development performance, and the key factors affecting the difference of liquid extraction are identified. The mechanism of liquid extraction and potential tapping is clarified through the classification and description of remaining oil. Combined with the actual production performance and mechanism model, the influence rules of reservoir thickness, extraction time, single well recovery degree and water avoiding thickness on liquid extraction effect are clarified. From the geological point of view, the reservoir thickness and oil thickness ratio are the objective conditions affecting the liquid extraction effect, which need to be considered in the selection of wells for liquid extraction; from the development point of view, the amplitude and timing of liquid extraction are the key factors affecting the liquid extraction effect, which need to be fully proved in the formulation of liquid extraction scheme; for bottom water reservoir, the limit of water avoiding thickness on the maximum liquid production rate is more important.

10.11885/j.issn.1674-5086.2020.09.08.01