scolopale

The design technology of rod pump well with no tubing raising system;

无油管有杆泵井举升工艺设计技术

Nodal analysis method and application of rod pump production in polymer flooding;

聚合物驱有杆泵采油的节点系统分析方法

To solve the problems of rod pump such as stroke loss and lower pump efficiency caused by fluid production force deficiency in the formation of the low permeability but high oil saturation, the layering oil production technology rod jet pump is developed.

针对低渗透含油饱和度高的地层供液能量不足给有杆泵采油带来的冲程损失大、泵效低等问题,开展了有杆射流泵分层采油工艺研究。

Designing the submergence depth of sucker rod pump with curve fitting;

应用曲线拟合法确定有杆泵沉没度

Analysis on common subsurface failure of the sucker rod pumping installation;

有杆泵抽油系统常见井下故障分析

With the development of the oilfield, deviated wells, sidetracking wells and horizontal wells have more and more important function,whereas the particularity of casing programme limited the landing depth of sucker rod pump,and affected the producibility of oil well seriously.

随着油田的开发,斜井、侧钻井、水平井等非直井在油田开发中起到越来越重要的作用,但由于井身结构的特殊性,限制了有杆泵的下入深度,严重影响了油井的生产能力,同时抽油井杆管偏磨,已成为非直井降低产量,增加作业成本、增加杆管成本的主要矛盾。

Optimization of sucker rod pumping system' efficiency for lower permeability reservoir directional well;

低渗透油藏定向井有杆抽油系统效率优化

Comprehensive control of eccentric wear of sucker rod and tubing in rod pumped wells in Shuanghe Oilfield;

双河油田有杆泵井管杆偏磨的综合防治

The more notable of these waterfalls are the Steep Slope Waterfall, the Snail Bank Waterfall, the Dripping Bank Waterfall, the Giant Tree Rock Waterfall, the Skyhigh Waterfall, and the Guan Waterfall.

比较大的瀑布有陡坡瀑布、螺蛳滩瀑布、滴水滩瀑布、大树岩瀑布、连天瀑布、关脚瀑布等。

cascade:a waterfall or a series of small waterfalls over steep rocks.

瀑布:陡峭岩石上的一条瀑布或一系列小瀑布。

A waterfall or a series of small waterfalls over steep rocks.

瀑布陡峭岩石上的一条瀑布或一系列小瀑布

including the Victoria Falls, the biggest waterfall in the world.

包括世界上最大的瀑布──维多利亚瀑布。

The Huangguoshu Cataract is one of the largest waterfalls in China.

黄果树瀑布是中国最大的瀑布之一。

for the smaller cascades had disappeared, while big waterfalls had become small ones.

小瀑布不见，大瀑布变小了。

The Waterfall Aviary has the highest man-made waterfall in the world.

瀑布鸟舍拥有世界最高的人造瀑布.

Niagara falls is comprised2 of three different waterfalls: the Horseshoe Falls, the American Falls, and the Bridal Veil Falls.

尼加拉大瀑布由三个不同的瀑布组成：马蹄铁瀑布、美国瀑布和新娘面纱瀑布。

Plum Rain Pool is at the foot of a waterfall, the lowest of the three waterfalls on Xianyan.

梅雨潭是一个瀑布潭。 仙岩有三个瀑布，梅雨瀑最低。

The beauty of the waterfall is beyond description.

瀑布的美是无法形容的。

Victoria Falls Summit

维多利亚瀑布首脑会议

The waterfall splashed over the rock.

瀑布飞溅着越过岩石。

In spring there are many waterfalls on the mountain.

春天山上有许多瀑布。

The cataract deafened the ear with its roar.

瀑布的声音震耳欲聋。

Water seethes under the falls.

在瀑布下水激起泡沫。

The water of the lake pours out over a big waterfall.

湖水从大瀑布处泻出。

This is Niagara Falls.

这是尼亚加拉大瀑布。

Niagara Falls, New York State, USA

美国尼亚加拉大瀑布