注采比

因此认为，应用BP神经网络方法预测油田注采比是有效、可行的。

Therefore BP neural network method can effectively and practically predict oilfield injection-production ratio .

注采比变化规律及矿场应用

Change pattern of injection-production ratio and its application in oil fields

不同注采比条件下油藏压力确定方法研究

The Study of Determining Reservoir Pressure under Different Injection-Production Ratio Conditions

油田开发中后期合理注采比确定方法

Determination of Rational Production Factor in Medium and Late Development Stages

高含水期单元合理注采比确定

The Determination of Injection - Production Ratio in High Water cut Stage

多因素调控的注采比模型与应用

An Injection-production Ratio Model of Multi-factor Control and Its Application

边底水油藏注采比的确定，需要有准确的水侵量为依托。

Confirming injection and production ratio of edge water reservoir depends on accurate water influx .

三是预测油田注采比。

Prediction of in jection-production ratio .

低渗透油藏考虑注采比时不稳定渗流规律研究

Study on transient flow regularity in low permeability reservoirs with consideration of injection - production ratio

水驱开发油藏的注采比是否合理直接影响着油藏地层压力保持水平及生产能力。

Injection-production ratio ( IPR ) directly affects the pressure maintenance and the productivity of reservoirs .

分别建立了均质油藏、复合油藏考虑注采比影响的地层平均压力的确定方法；

The method to determine the pressure of homogeneous and composite reservoir is presented in this paper .

三是研究了压力恢复速度与注采比、含水的关系。

Third , research on the relation between pressure buildup velocity and injection / production ratio and water cut .

给出了考虑注采比和启动压力梯度的平均地层压力和边界压力的确定方法。

The method is presented to determine formation average pressure and boundary pressure with threshold pressure gradient and injection-production ratio .

利用自喷转抽提液方法，放大生产压差，降低注采比。

The production pressure differential can be increased and the injection-production ratio can be reduced by transferring from flowing to pumping .

根据不同的油藏类型采用不同的注水方式以及不同的注采比，确保油层在某一压力下生产。

Different flooding pattern and different injection production ratio are used for different reservoirs to maintain the reservoir at a reasonable level .

地表减沉率与注采比成正比，其比例系数取决于地表的开采充分程度。

The coefficient of subsidence-reducing is direct proportional to the ratio of grouting to mining , and its proportion depends on the mining degree .

还对合理注采比的确定，合理地层压力的确定，单井经济极限产量、储量控制进行研究。

Also reasonable injection ratio to determine a reasonable formation pressure , single well the economic limit of production , reserves control study . 5 .

并合理补充地层能量，地层压力降至0.85倍饱和压力附近时开始注水，注采比保持在1.0左右。

When formation pressure decreases to around 0.85 times of saturation pressure , water should be injected with the injection-production ratio of some 1.0 to replenish energy .

采用低注采比政策，实施温和注水，限制压裂层注水强度，降低裂缝开启的几率；

Moderate water injection at low injection-production ratio should be implemented with restriction of injection strength of the fractured interval and reducing the probability of fracture opening .

注采比是注入水的地下体积与采出液地下体积之比，是构成油田开发政策的主要参数。

Injection-production ratio is the value of injected water underground volume divided by the underground produced fluid volume , which is the main parameter of constituting oilfield development policies .

同时，随着开采时间的延长，区块存在低效井比例多、注采比低、含水上升快等问题。

As the extended exploitation time , many problems including the large proportion of inefficient wells , the small injection-production ratio and the fast increasing water content need to be settled .

根据渗流力学原理，分析了地层压力与注采比、地层压力与流压、地层压力与产液量之间的相互关系及其影响因素。

According to the theory of seepage flow , this paper analyzes the relations between formation pressure and injection production ratio , flowing pressure , production and the factors that affect formation pressure .

近几年在动态分析中经常发现在注采比合理的情况下，油井能量得不到保障或者水井注水压力反常。

The phenomena , that the energy unavailability of oil wells and the anomaly of water injection pressure of water wells under the reasonable injection production ration in dynamic analysis was taken place frequently .

确定区块日配水2195方/日、注采比1.09，其中主力层配水945方/日，总配水量的43.0%。

Daily water allocation is 2195m3 / day . Injection-production ratio is 1.09 . Water allocation of main production layer is 945 m3 / day , which occupy 43.0 % of total water allocation .

反九点法与五点法相比，采油井地层压力较低，应适当提高注采比。

Compared with five point pattern , formation pressure of production wells in inversed nine point pattern is low , so the injection-production ratio of inversed nine point pattern should be moderately raised . 5 .

大庆油田已经进入特高含水期，出现年注采比大于1，而地层压力却逐年降低的状况，油田生产实际与物质平衡原理相悖。

Daqing Oil field has entered the extra high water cut stage , injection-production ratio is greater than 1 while formation pressure decreases gradually . Actual production condition is inconsistent with the principle of material balance .

建立了注采比理论模型，研究认为注采比除与储层物性有关外，还受合理注水压力、流动压力所制约。

Theoretical model of injection-production ratio is set up . Researches show that injection to production ratio is not only related to reservoir physical properties but also limited by rational water injection pressure and flowing pressure .

在此基础上实施了提高地层压力和化学防砂挡砂工艺，使胜二区地层能量逐步上升，注采比达到0.97，采液强度下降3.3t/m。

With the implementation of the technology on enhancing formation pressure and chemical sand control , the formation energy increased gradually , the injection-production ratio upped to 0 . 97 , produced fluid intension come down 3 . 3t / m.

油井压力的录取是油田开发重要的动态监测手段，压力资料是确定油藏合理注采比、制定注采调整方案的重要依据。

To gain oil well pressure is the important dynamic monitoring tool for oilfield recovery , and the pressure data is the foundation of defining reasonable injection-production ratio of oil reservoir and of working out injection - production adjustment scheme .

针对异常高压低渗透油藏的开发特征，从井网部署、地层压力保持水平、合理注采比等方面入手，提出了适于该类油藏的注水开发方式。

In consideration of the characteristics of abnormal high pressure and low permeability reservoirs , the development modes suitable to waterflooding of these types of reservoirs are proposed based on well pattern arrangement , hold-ing-up of formation pressure and rational injection-production ratio .