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摘要:大庆油田以精细化水驱蹚出稳产路
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中国石油网消息:9月14日,大庆油田榆树林公司第二作业区东18区块泵房内,榆树林公司地质工艺研究所开发动态室副主任杨绍明正带领团队,围绕树32-斜491井含水率上升的难题,制定精准调控措施,疏导低压层注水。这是该公司优化注水方案、攻坚老油田稳产的生动实践。 China Oil News: On September 14th, in the pump house of the Second Operating Area of Yulingshan Company in Daqing Oilfield, Yang Shaoming, the deputy director of the Development Dynamics Room of the Geology and Process Research Institute of Yulingshan Company, was leading his team to formulate precise control measures to address the problem of rising water content in the Shu 32 - Sliang 491 well, and to guide the injection of water into the low-pressure layer. This is a vivid practice of the company optimizing the water injection plan and tackling the issue of maintaining stable production in old oilfields. 连续17年实现原油稳产40万吨以上的榆树林公司,目前面临地下储层层间差异大、层间干扰严重、储层致密注入困难等难题。该公司确立“精准认识、精准调整、精准攻关、精准管理”的四维工作体系,以精细化水驱调整为抓手,推动注水管理由“分层管控”向“单层精细动用”升级。 The Yulingshan Company, which has maintained an annual crude oil production of over 400,000 tons for 17 consecutive years, is currently facing several challenges such as significant differences between underground reservoir layers, severe inter-layer interference, and difficulties in reservoir injection due to its dense structure. The company has established a four-dimensional working system of "precise understanding, precise adjustment, precise research, and precise management", and takes the precise water flooding adjustment as the starting point to promote the upgrading of water injection management from "layer-by-layer control" to "single-layer precise exploitation". “我们通过应用建模数模一体化技术,利用历史数据‘重建’地下世界,持续迭代单砂体刻画、人工裂缝数值模拟等技术。”榆树林公司地质工艺研究所油藏描述室主任吴东莹说。截至目前,榆树林公司今年已指导水驱调整165井次,优化了41口井的压裂参数及水平侧钻方案设计,剩余油分布从“大概知道”变成了“精确锁定”,为精准施策提供了坚实的数据支撑。 "We apply the integrated modeling and simulation technology to 'reconstruct' the underground world using historical data, and continuously iterate on technologies such as single sand body characterization and numerical simulation of artificial fractures," said Wu Dongying, the director of the Reservoir Description Room of the Geological Technology Research Institute of Yulingshan Company. As of now, Yulingshan Company has guided 165 water flooding adjustments this year, optimized the fracturing parameters and horizontal sidetracking design of 41 wells, and the distribution of remaining oil has changed from "approximately known" to "precisely locked", providing solid data support for precise measures. 相较于成本高昂的新井钻探,榆树林公司深耕老井网优化改造,走出了一条低成本、高效益的稳产路径。技术人员系统梳理全区井网连通关系,精准研判剩余油富集规律,综合运用转注、修井、补孔等工艺措施,盘活低效井、闲置井产能。目前,已恢复注水井21口,新增水驱控制储量70余万吨,有效盘活了存量油气资源。 Compared with the costly process of drilling new wells, Yulingshan Company has focused on optimizing and renovating the old well network, thus establishing a cost-effective and high-yield stable production path. The technical staff systematically analyzed the connectivity of the well network throughout the area, accurately identified the laws of remaining oil accumulation, and comprehensively employed techniques such as transfer injection, well repair, and well re-drilling to enhance the production capacity of inefficient and idle wells. Currently, 21 injection wells have been restored, and an additional 7 million tons of water drive controlled reserves have been added, effectively revitalizing the existing oil and gas resources. 精准控水的核心在于精准配水。针对部分油井高渗层注水饱和、水流窜流,低渗层注水不足等问题,榆树林公司实施层段调控,对高水淹井组运用调剖技术,封堵高渗通道,扩大驱油波及范围;对致密欠注层开展大排量补水试验,依托橇装工艺补充地层能量,将产能“死角”转化为有效驱油阵地。 The core of precise water control lies in precise water distribution. In response to problems such as excessive water saturation in high-permeability layers during water injection, water flow migration, and insufficient water injection in low-permeability layers, Yulingshan Company implemented layer-by-layer regulation. For high-water-flooded well groups, they applied shaping technology to seal high-permeability channels and expand the oil displacement coverage area; for tight under-injected layers, they conducted large-flow water replenishment tests and relied on skid-mounted technology to replenish the formation energy, converting "dead zones" of production capacity into effective oil displacement positions. 精细注水效能的释放,离不开全方位协同管控。榆树林公司构建横向专业融合、纵向上下联动的“大生产”格局,落地开发指标月检查、季对标机制,常态化开展异常井旬报、无人机巡检等工作,较年初生产时率提升3.3个百分点。同时,抓实水质管控、资料梳理、设备运维等基础工作,水质达标率稳定保持在95%以上。 The release of the efficient performance of precise water injection is inseparable from comprehensive and coordinated management. Yulingshan Company has established a "large-scale production" framework featuring horizontal professional integration and vertical interconnection. They have implemented monthly inspections of development indicators, quarterly benchmarking mechanisms, and regularly conducted weekly reports on abnormal wells and drone inspections. As a result, the production rate has increased by 3.3 percentage points compared to the beginning of the year. At the same time, they have focused on basic tasks such as water quality control, data organization, and equipment maintenance, maintaining a stable water quality compliance rate of over 95%. |
















