压裂

An amine bactericide, JA-1, is developed to prevent plant gum base hydrofracturing fluids from deteriorating by microorganism s.

华北油田在配制植物胶水基压裂液时，曾使用40%甲醛水溶液(加量0.5%-1.0%)为杀菌防腐剂，未能控制压裂液的霉腐变质，霉变率高达10%以上。

Encapsulated Gel Breaker ; Delayed-Release Gel Breaker ; Water-Base Plant Gum Fracturing Fluids ; Research and Development ; High Proppand Load Fracturing Fluids

胶囊破胶剂；缓释破胶剂；水基植物胶压裂液；研究与开发；高砂比压裂

The result of the limit element analysis validates the analysis of the mechanics about the double punch.

从本次试验结果来看，径向压裂和轴向压裂法的试验值比较接近，结果低于单轴拉伸试验，土梁弯曲法的

The combustion process of high energy gas fracture in oil well is simulated with manometric bomb,the poisonous gas produced in the process is analyzed by infrared spectrum technique.

用密闭爆发器模拟高能气体压裂弹在油井中的燃烧过程，用红外光谱分析技术检测燃气成份中的毒性气体，测试了7个不同生产厂的高能气体压裂弹产品的燃气成份，并对特殊产品燃气中产生HCN机理进行了分析。

This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters,apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure,consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology,reservoir,and rock mechanics and reservoir damage,etc.Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion ,gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view ,also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.

本文针对目前异常破裂压力储层降低破裂压力的主要问题展开较为系统和深入的研究，取得了以下主要成果：1形成了利用测井资料，结合室内岩芯测试结果，获取静动岩石力学参数的相关性特征，从而获得纵向上大量静态力学参数的方法。2在获取了岩石力学参数的此基础上，利用弯曲薄板作为力学模型，结合区块实际地质特征对背斜构造进行曲率分析，通过曲率与应力的关系，利用背斜构造不同部位的主曲率求得相应的构造应力值，从而建立起背斜储层的分层应力模型；对已有压裂资料的区块分层，形成了综合利用测试、室内实验、压裂资料反演获得该区块构造应力系数，建立起分层地应力的力学模型的方法。3综合考虑储层地质、油藏、岩石力学特性和储层伤害等因素，分析造成高破裂压力的主要原因，综合利用岩石力学、弹性力学等知识，建立了裸眼完井、射孔完井条件下以及储层受到伤害后的储层破裂压力定量预测模型，为降低施工风险和优化施工工艺提供了依据。4完成了物性、岩性影响岩石力学参数的因素分析，找出了各影响因素和岩石力学参数之间的关系，为从机理上解释酸化预处理降低破裂压力提供了理论基础；从微观元素的角度阐述了单矿物与酸反应的机理；并在此基础上，有效评价了各种矿物的酸敏感性，定量确定了岩石中各矿物的一级反应动力学方程。5完成了不同温度下的酸液类型、酸液浓度、注酸量等一系列砂岩损伤实验，结合岩石力学三轴应力实验，系统揭示了在不同条件下注酸而引起的岩石力学性质变化。6将损伤力学与砂岩酸化相结合，在宏观、微观两个方面认识酸岩反应引起岩石力学参数变化基础上，建立了砂岩损伤力学模型，并对其进行验证，在此基础上定量计算酸化后的破裂压力，有效指导现场施工

In the process of production of fracturing gas wells, an unreasonable proration would lead to sand production, further cause productivity decline and eventually affect fracturing result.

中文摘要：压裂气井在生产过程中，如果配产不合理将会导致出砂，引起产能下降，最终影响压裂效果。

To the soft coal, there are once crack density increment and once crack expansion, and the expansion is import to fracture. It is found that the relation between the fractal dimension of crack and the abutment pressure is polynomial expression.

研究表明，裂隙分维和支承压力具有良好的多项式定量关系；同时，通过顶煤压裂试验得出了基于损伤力学的顶煤压裂本构方程，损伤变量的变化验证了裂隙演化规律的正确性。

In the course of fracturing construction,stand or fall of fracturing fluid has become the key factor of construction measure.

在压裂施工工程中，压裂液的好坏有又成为该施工措施的关键因素。

In order to cope with the water channeling in some oil wells, the water blocking process of bridge plug cementing is studied and applied in 5 wells close to be rejected.

但选井时要求压裂层段距边底水有一定的距离，并有较好的隔挡层，否则压裂时裂缝如果延伸至下部水层，则会造成油井大量出水。

The analysis shows that the flow course and the pressure characterist...

研究表明，对于不同的地层特征和压裂方案，压裂水平井的渗流过程及压力动态特征与常规水平井明显不同。

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。