压裂

The stress field,especially the orientation of horizontal principal stress in vertically-fractured gas well,determines the azimuth of refracture creation and refracture propagation.

根据弹性力学理论和岩石破裂准则，裂缝总是沿着垂直于最小水平应力方向起裂，因此，重复压裂井中的应力场分布决定了重压新裂缝的启裂和延伸。

This paper discusses the principle for high energy gas fracturing, analyzes theresponse of 5 testing wells and effects of fracturing by highenergy gas generators on casingand cement ring.

本文阐述了高能气体压裂的原理，通过S口井的试验对比。分析了试验井的效果和用高能气体发生器压裂对套管及水泥环的影响。

A numerical model of critical sand production was established to provide a basis for preventing sand from fracturing gas wells.

建立了压裂气井出砂临界产量数学模型，为防止压裂气井出砂提供了依据。

The thickeners are the main additives of water-based fracturing fluids, whose ability seriously affect the effect of fracturing treatment.

稠化剂是用于水基压裂液的主要添加剂，其性能的好坏将直接影响压裂的效果。

These products are all made of high quality sted by forging and finishing cut, They have good.

油壬用于水泥车、压裂车、各种管汇及其他高压设备和管线上，是输送油、水、压裂液及混合流体的重要部件，这些产品均采用优质钢锻造成及精加工制成，具有

Connect blender, fracturing pumpers, manifold truck and fracturing tanks.

连接混砂车、压裂车、管汇车及压裂车。

It uses advanced completion pipe string and sand fracturing pipe string in completion process to attain the goal of layer fracturing and selective zone production of the parent well and its branch.

XQ90井是我国在川西地区所钻成的第一口气井分支井组，该井在完井工艺上采用了先进的完井管柱和加砂压裂管柱，达到了主、分支井分层压裂，分层开采的目的；其自行研制的双管采气井口可以分别控制主、分支井井口油压，为后期的采气作业提供了可靠的保障。

This paper focused typical sand jet fracturing used in foreign countries and introduced in detail the development of jet structure and connection and its application procedures. The application of two typical sand jet fracturing tools was introduced.

着重介绍了目前国外典型的水力喷砂压裂工具，阐明了国外喷射器结构及其连接方式的发展，国外所使用两种典型工具的结构、作用及其操作步骤，并对这两种井下水力喷砂压裂工具的应用进行了介绍，说明了其适用性。

A typical domestic sand jet fracturing tool is introduced. The basic structure of jet was introduced. The field applications indicate that sand jet fracturing is effective in improving production.

并对国内所使用的典型水力喷砂压裂工具进行了介绍，给出了工具中关键部件喷射器的基本结构，并联系国内现场实际的应用情况，说明了水力喷砂压裂是一种有效的增产技术措施。

For low permeability horizontal wells, sand jet fracturing is an effective stimulation technique which combines the advantages hydraulic jetting and hydraulic fracturing, and can be used for orientated perforation without mechanical packer.

对于低渗透水平井，水力喷砂压裂是一种有效的增产技术，它集合了水力喷射和水力压裂的优点，可以定向射孔，无需机械封隔。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。