注水开采

任丘油田开发后期不稳定注水开采效果评价

Oil field development an evaluation on unsteady water flooding in the later development stage of Renqiu field

油田注水开采生产规模的确定

Determination of the appropriate yield scale under the injection oilfield recovery system

油田注水开采能够增加原油产量和提高采收率。

Water-flooding can improve crude oil production and recovery factor .

油田注水开采地震监测理论研究

Theoretical study of the seismic monitoring of oilfield waterflood recovery

大庆油田注水开采三十八年来，油井和注水井套管损坏现象日趋严重。

Daqing oil fields have been exploited for thirty eight years , the casing failure in petroleum tube is becoming more and more serious .

世界许多油田都是采用注水开采石油，我国水驱油田占87%。

Water-flooding is common in many oil fields in the world . Oil fields with water flooding occupy 87 % of the Chinese oil fields .

根据油、水在横向和纵向上的运动情况和层间窜流情况，对模拟结果进行了分析，揭示了不同沉积韵律油藏不同部位注水开采效果的一般规律。

The simulation results were analyzed according to the lateral and vertical movements and interlayer crossflow of oil and water , and the regular pattern of waterflooding at different positions were revealed .

与注水开采相比，注气开采能够较大幅度提高原油采收率，是改善高含水油藏开采效果的有利手段。

And the gas drive process is an effective way to improve the reservoir behavior with high water cut and can be applied for great increase of oil recovery compared with waterflooding process .

对于低渗透油藏，目前普遍采用的是注水开采的方式，在注水开发中，注入水水质的好坏不仅影响注水工艺系统的效率，同时要影响油藏的开发指标及开发效果。

For low permeability reservoir , waterflood development is the most popular method . In waterflooding , the quality of water injection not only has influence on the efficiency of the process system but also on the index and result of oilfield development .

经过多年的注水开采，世界范围内的大部分油田面临着含水高、储采比低的严峻形势，为了提高采收率，人们对三次采油技术越来越重视。

After exploitation of water injection many years , most of the oil fields in the world are confronting with high water ratio and low R / P ratio austere circumstances . In order to improve recovery , people take EOR more seriously .

自大庆油田发现以来，在经历了长时间的注水开采后，很多油田开发区块尤其是老区油田都进入了高&特高含水期，含油砂体水淹严重。

Since the discovery of Da qing Oil Field , after long time of waterflood recovery , many oil exploitation areas especially the old areas have gone into high or ultra-high water reserve period , the phenomenon of oil-bearing sand bodies flooding is serious .

在纵向非均质性比较严重的油层，可采用化学调剖堵水封堵高渗透层、改善吸水驱替剖面或者分层注水开采的方式来获得较高的采收率。

And in the formation characterized by obvious vertical heterogeneity character , the projects of chemical water plugging by profile control , plugging the high permeability formation , improving water entry profile , or separate water injection can be adopted to improve the recovery ratio .

同时流固耦合模型的建立为油田在注水开采过程中模拟储层的流体压力及地应力，对油田调整注采工艺、监控套管状态，防止套损，确保油田安全生产提供必要的参考。

And forming fluid-solid coupling model to simulate fluid stress and crustal stress from stratum in the process of the oil field injection-production , offering reference for adjusting injection-production craft 、 monitoring oil casing condition , preventing oil casing damages , guaranteeing oil field safety in production .

针对原油田开发指标水动力学计算方法存在的不足，考虑了产量随时间变化的关系，重新推导了一套非均质油藏行列注水开采时各项指标的计算公式。

Aimed at the defects of the original hydrodynamic methods used to predict development indexes , based on the previous methods , a complete set of expressions of predicting development indexes for heterogeneous parallel water-flooding reservoir have been derived , tested and verified with actual data in this paper .

煤层注水在开采中除能软化煤体外，还能起到防尘、防火及防瓦斯突出等综合效果，而在煤层注水中关键是确定注水压力的大小。

Besides pre-cracking coal , water infusion in coal seam has comprehensive effect on preventing coal dust and fire , however , the key of the water infusion is to determine water pressure .

为了正确模拟油藏中流体流动的动态过程，必须考虑由于注水和开采而引起的多相流体的流动、应力状态的变化和储集层变形之间复杂的相互作用。

In order to correctly simulated the dynamic process of the fluids flow in oil reservoirs , it must be consider that the complex interaction among multiphase fluid flow , changes in stress state , and formation deformation as a result of injection and production operations .

注水是油田开采的重要方式之一。

Water injection is one of exploitation modes in oilfield development .

注水油田经济开采年限的确定方法探讨

Discussion on Determination of Economic Production Life

对于低渗油气田或生产历史长的油气田，采取特殊方法比如人工举升和注水开发进行开采。

For oil fields with low permeability and quite long production history , artificial lift and flooding methods are best choices .

煤层注水已经成为煤矿开采中经常采用的一项驱气技术。

The coal seam water infusion is a technique that can drive the gas out of the coal seam .

中国油田开发的基本方式和开采方针是早期内部注水、逐步强化开采。

The policies of early-stage inter-water-flooding and stepwise enhanced recovery are the major ways for oilfield development in China .

低渗小断块油藏控制单元井间连通性差，边界封闭，地层能量有限，开采中地层能量下降快，难以采用早期注水等方式大规模开采。

It is difficult for complicated small fault block , low permeability reservoir to be recovered by commercial-scale waterflooding in early stage because of poor inter-well communication , boundary seal , and limited reservoir energy .

受多断层切割的复杂断块油藏，所形成的众多小断块单元油藏井间连通性差、边界封闭、地层能量有限、开采中地层能量下降快、难以采用早期注水等方式大规模开采。

It is difficult for complicated small fault block oil reservoir unit by many faults to commercial-scale operation by water injection because of communication difference among wells , boundary seal , producing energy finite , producing energy falling soon during exploitation .

由于长期注水、注汽开采，导致地层水十分活跃，井下动态干扰大，在钻进过程中经常发生溢流、井涌、气窜，影响固井质量。

Very active formation water as a result of water and steam injection for a long period led to heavily dynamic disturbing downhole . Overflow , kicking and gas breakthrough frequently occurred in the drilling progress and thus gave an impact on the cementing quality .

本文主要阐述了车排子油田车2区齐古组油藏注水开发的可行性和注水开采的工艺技术的研究，注水开发方案的实施及开发效果评价。

This article mainly depicted the feasibility , techniques research , application and evaluation of water injection scheme in Che2 district Qigu formation of Chepaizi field .

为了给砂岩非均质油藏进一步开展周期注水矿场试验或工业性开采提供依据，利用三维三相黑油模拟器和准两层地质模型进行了垂向非均质砂岩油藏周期注水开采数值模拟研究。

The cyclic water flooding in layered heterogeneous sandstone reservoir has been studied by means of VIP simulator and pseudo-2 - layer geologic model in order that the cyclic water flooding method would be tested and widely used in field .

正常压力及异常低压油藏适合超前注水，异常高压低渗透油藏建议采用滞后注水开采。

Good result of leading injection could be achieved in the normal and subnormal pressure reservoir , while in the surer pressure and low permeability reservoir , delayed injection should be adopted .

现场试验表明，应用这种近井高扬程采注水技术及其配套机电系统，可使小区块油田注水开采成本明显降低。

Field test indicates that the cost of production of waterflooding in small block oilfield is reduced obviously by using the technique and its support system .

应用数值模拟方法，对该油藏8种继续降压而产液量不同方案和4种恢复注水保持不同压力水平方案、6种周期注水方案的开采效果进行了模拟研究和预测、对比。

Eight programs producing at different rate under continuous pressure drop , 4 programs with restoring injection to maintain reservoir pressure at different levels , and 6 programs with cyclic injection are studied by numerical simulation for their development results , being predicted and compared .

针对这类油井进行单井注水吞吐采油试验，研究发现钻遇定容封闭性油藏的油井适合单井注水吞吐开采。

Aiming at the oil wells , the test of water-flood huff and puff with single well is conducted for oil recovery .