高效油井的一个直接好处是降低了泵送成本。高效水井的设计需要了解影响主要降深部件的各种水力因素。通过井网和近井过滤区的湍流会造成不必要的水头损失。将这些湍流损失降至最低，可以在油井的使用寿命内节省大量成本。高效井将筛网和过滤材料的适当设计与有效的开发方法结合起来。有效井径可以用来衡量滤层发育程度。 根据泵送速率和过滤材料的知识，可以估算消除近井湍流所需的井网最小长度。最近的实验测试结果表明，入口速度和屏幕开放面积不是大多数现场应用的关键设计因素。合理的充水比和油井开发是建造高效水井的主要因素。逐步下降测试是计算油井效率和确保开发完成的有效工具。包括12个参考文献、图表。

A direct benefit of efficient wells is reduced pumping costs. Design of efficient water wells requires knowledge of the various hydraulic factors that affect the major drawdown components. Turbulent flow through the well screen and in the near-well filter zone creates unnecessary head losses. Minimizing these turbulent flow losses can result in substantial costs savings over the lifetime of the well. Efficient wells incorporate proper design of screens and filter materials with effective development methods. The effective well radius can be used to measure the degree of filter-zone development. Estimates of the minimum length of well screen required to eliminate near-well turbulence can be made from knowledge of pumping rates and filter material. Recent experimental test results show that entrance velocity and screen open area are not critical design factors for most field applications. Proper pack-aquifer ratios and well development are primary factors in the construction of efficient water wells. The stepdrawdown test is an effective tool with which to calculate the efficiency of a well and to ensure that development is complete. Includes 12 references, figures.