压裂

Requests on resistance of corrosion destructibility of sealing interfaces that related to sealing up and cementing exercises in petroleum engineering are more and more of rigidity. It is urgently needs to resolve all sorts of problems that affect interface bonding quality. Conventional cement slurry design resist the destructive function worse, and can't like to satisfy the request to carry on latter production such as perforation, acidify, fracture etc.

常规油井水泥抵抗破坏的性能较差，不能很好满足水泥环抗冲击振动以及射孔、压裂等各种变形破坏的要求，这在一定程度上限制了小间隙、大位移、定向与水平井等特殊钻井工艺技术的发展，也制约了后期压裂、酸化等诸多开发工艺措施的实施。

The binomial deliverability equation can only be used to describe the high velocity non-Darcy filtering flow. For low permeability fracturing gas wells, due to low permeable property and high flow conductivity of the formation, the filtering flow laws of the formation are different from those before fracturing, and binomial deliverability equation can not be used for the flow condition of gas wells, therefore, new equation is needed.

二项式产能方程只能描述高速非达西渗流，对于低渗压裂气井，地层的低渗透性和裂缝的高导流能力使得其渗流规律已经和压裂前大不一样，二项式产能方程已无法描述气井的生产状况，必须建立新的方程。

Accurate understanding and calculating the total fracturing fluid leak-off coefficient is both key problem to the fracturing design and the important matter to the analysis after fracturing.

准确认识和计算压裂液综合滤失系数，既是压裂施工设计中的一个关键问题，也是压后分析评估的一个核心内容。

The design mainly works on many factors which effecting the volume efficiency of fracturing pump. These factors are working conditions of the pump,imbibitional valve,expulsive valve,clearance volume,sealing property, condensability of influent, liquid leakage and elastic defletion of pump cylinder. Based on these facors, we should induce the efficiency expression, famulate differential eguation and emulational mathematical model of fracturing pump.

本设计主要针对影响压裂泵容积效率的因素如：泵的工作情况、吸液阀结构参数、余隙容积、密封性能、液体的可压缩性、液体泄漏、泵缸的弹性形变等方面进行分析，在此基础上导出效率的表达式，建立微分方程，并建立压裂泵效率仿真的数学模型。

The principle of high energy gas fracture and the application of it to test sites in oil fields were described.

叙述了高能气体压裂技术作用原理及其在油田的现场应用情况，分析了油层物性对压裂效果的影响，提出了针对不同情况的油层物性选择不同施工工艺，为选井选层提供参

For fracturing of multilayers in long interval, conventional method was to frac the layer one by one, while most of the other layers could not get improved at the same time.

常规大井段多油层压裂只能对其中的某一层段进行改造，而其他大多数层位并未得到改造，往往是得到处理的层位并不完全是设计的层位，压裂效果受到很大的影响。

A hydraulic frac method that uses a water and oil emulsion.

利用水包油乳状液作为压裂液的水力压裂方法。

For a type of modified guar gum being used in acidic and CO2-foam fracturing,its main properties is evaluated in this paper.

为使一种改性胍胶能用于酸性压裂和CO2泡沫压裂，对其主要性能进行了评价。

Autogenetic heat fracturing technique, which replaces fracturing pad fluid with chemicals in order to increase the backflow volume of fracturing fluid and the oil well productivity, is a technique used for remaking the low permeability reservoirs.

自生热压裂技术是应用化学药剂代替压裂前置液以提高压裂返排率和油井产能的低渗透储层压裂改造技术。

It will be more reasonable to use the result of gas log conductivity testing as the guideline for evaluation of potential before fracturing, optimization of fracturing design, forecast of effects and selection of proppants. The method of gas log conductivity should be used for laboratory research on fracturing of gas reservoirs.

用气测导流能力的实验结果来指导气井的压前潜力评估、压裂优化设计、压后效果预测和支撑剂的优选评价将更具合理性和针对性，气藏压裂的支撑裂缝导流能力实验最好采用气测方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。