今年以来，胜利油田滨南采油厂狠抓油水井注水补能、长停井扶停和基础管理，生产经营呈现稳健运行的良好态势。前3个月，累计生产原油48.66万吨，超计划3757吨。

注水补能，让地层能量升上去

林中12块剩余油较富集，但原油黏度高、平面动用程度低，水井“注不进”，油井“采不出”。2023年6月以来，滨南采油厂采油管理一区在抓好油井降黏的同时，通过增注补能、井组转注和细分注水，日增注水量80立方米，油井产能提高，林12-11井日增油5.1吨。

“老区稳产上产，注好水、保持地层能量是关键。”该区开发主管师朱军说。地下油藏历经长期开采，地层亏空大、能量不足，需要补充新的能量，把油“赶”出来。注水就是补充地层能量、提高采收率的重要手段。

为此，该厂成立注水工作领导小组，分设油藏开发、工艺技术、水井作业、工程管理4个运行小组，今年以来完成水井作业76井次，同比增长2.2%，日增有效注水量1100立方米。同时，在深入开展层系梳理的基础上，加大水井投转注力度，日增注水量210立方米，累计增油302吨。加快停产、停注井治理，日增注水550立方米，日增油13吨，注采对应率稳步提升，稀油自然递减率得到有效控制。

加快扶停，让开井数量多起来

2月底，停产11年的郑36-1-斜5井，以峰值日产油15吨重新焕发生机。

该井储层物性差、原油黏度高、地层出砂严重，2013年7月因为低产低效而停产。今年1月，他们通过地质、工艺、注汽、作业综合分析，通过大修重新防砂扶停，并进行工艺技术优化，使该井增油效果显著。

随着油田开发时间延长，一些油水井由于地质、低产低效和套管变形、缩径、错断等原因处于长期停产状态，不光不产油、不注水，还要折旧折耗、增加完全成本。

长停井停着是“包袱”，盘活了就是资源。为把“包袱”变资源，该厂梳理长停井总量，对井层潜力、地层能量、工艺技术、井筒状况、地面状况、扶停效益等六个方面进行分析，明确具有扶停潜力的油井460口、水井152口，有针对性地制定不同扶停对策。

前3个月，该厂累计扶停油井45口，累计增油3559吨；扶停水井21口，日注水1584立方米，累计增加注水量9.6万立方米。

强化管理，让“头疼脑热”降下来

3月26日，该区注采四站站长屈瑞带领员工按照计划性停井工作安排，更换LFLN15P7井的皮带和盘根，对螺栓、电机进行保养。“经过区里统计分析，判断皮带使用寿命大约为100天，等皮带断了再更换，平均用时55分钟，主动有计划性地更换，平均用时21分钟，能少停井34分钟。”屈瑞说，“所以我们在皮带用到90天的时候，主动停井更换，减少被动停井，保障采油时率。”

该区强化“时率就是产量”意识，通过皮带盘根预见性更换、计划停井、“一井一策”管理等，使前3个月采油时率提升至99.8%。“要想多产油，开井数要多，采油时率也要高，要想方设法减少油井的‘头疼脑热’，让油井常年不休多采油。”该区相关负责人说。

为此，该厂建立分因素采油时率评价体系，完善23项基础管理制度，内容包括预见性更换、计划停井、工况分析、停井后有序恢复生产等，狠抓执行落实，力促油水井运行参数最优化、产量最佳化、经济效益最大化，稀油躺井率得到有效控制。

Since the beginning of this year, the Binnan oil production plant of Shengli Oilfield has paid close attention to the replenishment of oil and well water injection, long well stoppage and basic management, and the production and operation have shown a good trend of steady operation. In the first three months, the cumulative production of crude oil 486,600 tons, exceeding the plan of 3,757 tons.

Recharge the water, and let the formation power up

The remaining oil of Linlin 12 block is rich, but the viscosity of crude oil is high, the degree of plane use is low, the water well is "not injected", the oil well is "not produced". Since June 2023, the first oil production management area of Binnan Oil Production Plant has increased the water injection volume by 80 cubic meters per day, improved the production capacity of the oil well, and increased oil by 5.1 tons per day in the well 12-11 through increased energy injection, well group transfer and subdivided water injection.

"Stable production in the old area, good water injection and maintaining formation energy is the key." Said Zhu Jun, the district's development supervisor. After long-term exploitation of underground reservoir, the formation has a large hole and insufficient energy, so new energy needs to be added to "drive" the oil out. Water injection is an important means to supplement formation energy and enhance recovery.

To this end, the plant set up a leading group of water injection work, divided into reservoir development, process technology, well operation, project management four operating groups, this year completed 76 Wells, an increase of 2.2%, a daily increase of 1100 cubic meters of effective water injection. At the same time, on the basis of in-depth stratification, the water injection of Wells was increased by 210 cubic meters per day, and the cumulative oil increase was 302 tons. Production and injection well stoppage treatment were accelerated, with an increase of 550 cubic meters of water injection and 13 tons of oil per day, the injection and production corresponding rate steadily increased, and the natural decline rate of thin oil was effectively controlled.

Speed up the stop-work, so that the number of Wells opened more

At the end of February, the Zheng 36-1-Skew 5 well, which had been out of production for 11 years, came back to life at a peak of 15 tons of oil per day.

The well was shut down in July 2013 due to low production and low efficiency due to poor reservoir physical properties, high viscosity of crude oil and serious formation sand production. In January this year, through comprehensive analysis of geology, process, steam injection and operation, re-sand control and stoppage through overhaul, and process technology optimization, the oil increase effect of the well was remarkable.

With the extension of oilfield development time, some oil and water Wells are in a state of long-term shutdown due to geology, low production and low efficiency, casing deformation, diameter reduction, misfracture and other reasons, not only do not produce oil, no water, but also depreciation depletion, increase the full cost.

A long pit stop is a "burden", and it is a resource. In order to change the "burden" into resources, the plant sorted out the total number of long shutdowns, analyzed six aspects, including well formation potential, formation energy, process technology, wellbore condition, ground condition, and benefit of shutdowns, identified 460 Wells and 152 Wells with potential shutdowns, and formulated different shutdowns countermeasures.

In the first three months, the plant has stopped 45 oil Wells and added 3,559 tons of oil; There are 21 Wells with 1,584 cubic meters of water injected daily, with a cumulative increase of 96,000 cubic meters of water injection.

Strengthen management, let the "headache brain heat" down

On March 26, Qu Rui, the head of the fourth injection and production station in the area, led the staff to replace the belt and packing of the LFLN15P7 well and maintain the bolts and motors in accordance with the planned shutdown work arrangement. "After the statistical analysis of the district, it is judged that the service life of the belt is about 100 days, and then replace the belt after breaking, the average time is 55 minutes, and actively and planned replacement, the average time is 21 minutes, and the well can be stopped for 34 minutes less. "So we take the initiative to replace the belt when it is used for 90 days to reduce passive shutdowns and ensure oil recovery time," Qu Rui said.

The area strengthened the awareness of "time rate is production", and through predictable replacement of belt packing, planned well shutdown, and "one well and one policy" management, the oil recovery time rate increased to 99.8% in the first three months. "In order to produce more oil, the number of Wells should be opened, the rate of oil recovery should be high, and ways should be found to reduce the 'headache fever' of the oil well, so that the oil well will not stop producing more oil for years." The relevant person in charge of the district said.

To this end, the plant established a factor oil recovery time rate eva luation system, improve 23 basic management systems, including predictive replacement, planned well shutdown, working condition analysis, orderly recovery of production after shutdown, pay close attention to implementation, and promote the optimization of oil and water well operating parameters, production optimization, economic benefit maximization, thin oil lie rate is effectively controlled.