Perforation density and orientation angles are the most important factors of all to affect formation fracturing pressure.
主要结论包括射孔密度和射孔方位角是影响地层破裂压力的主要因素。
Formation fracturing is the basic measure to develop low permeability oil field. Water searching and shutoff should be done early.
油层压裂改造是开发好低渗透油田最基本的措施以及尽早卡堵水的问题等。
Deepwater, with the properties of low temperature, high pressure, low formation fracturing pressure, impacts the cementing work significantly.
海洋深水温度低、压力大、地层破裂压力小，对固井作业产生了较为严重的影响。
Due to the higher thermal expansion of fluid in low permeability shale, the super pore pressure may lead to the development of effective tensile stress and even formation fracturing.
由于低渗透页岩地层流体高温膨胀导致的超孔隙压力，有可能产生有效拉张应力，严重时会导致地层破裂。
The pore pressure also strongly influences the state of stress in a formation (by as much as 50%) and is therefore a critical piece of information for designing hydraulic fracturing treatments.
孔隙压力也强烈地影响地层中的(多达50%)的应力状态，并针对设计水力压裂处理而言是一项重要信息。
A multistage cement job is used to avoid fracturing the formation when cementing long casing strings.
多级注水泥作业用来在对长套管柱注水泥时避免使地层破裂。
One of the important parts of formation pressure detection is to determine formation fracture pressure, which is important for drilling, well completion and fracturing.
地层破裂压力(梯度)是确定地层压力检测的一个重要组成部分，对钻井、完井和压裂等施工都相当重要。
Through analyzing the pressure records in hydraulic fracturing, we can gain the formation and the fluid characteristic parameters and then judge the geometrical shape of a crack.
对水力压裂来讲，这个系统就是通过对记录压力的分析，提取地层和液体特征，从而确定裂缝的几何形状。
Filtration rate of fracturing fluid into formation is one of key factors to determine fracture geometry in the design of fracturing and the evaluation after fracturing.
压裂液向地层的滤失速度是压裂设计和压后评估分析时确定裂缝几何尺寸最关键的因素之一。
The explosive fracturing was tested in house in order to solve problem of formation compact caused by smash area around the wellbore resulting from explosive fracturing.
针对爆炸压裂容易在井壁周围造成粉碎区、形成致密压实带的问题，进行了室内爆炸压裂模拟试验。
Fracture operation is one of the important manners for exploitation of CBM and to obtain enough information is very critical for fracturing treatment in a coal bed methane formation.
压裂是煤层气开采的重要手段之一，而压裂前获取煤层相关地层参数，对压裂设计及压裂施工十分必要。
The fluid cleanup rate has been increased by utilizing fluid fast clean up technology. Formation damage was depressed, and thus the effect of fracturing treatment has was improved.
研制的压裂液快速返排技术，提高了压裂液的返排率，进一步减少了压裂液对地层的伤害，提高了压裂效果。
Xiangxiqun Formation generally has the characteristic of low bore and low permeability in Chuanzhong oil field By fracturing reconstruct, most of Wells have acquired the business value.
川中香溪群储层普遍具低孔、低渗特性，大部分井只有通过压裂改造，才能获得商业开发价值。
Fracture genesis mechanism in ZJD area is analyzed from the aspects of abnormal pore fluid pressure in formation, local structural deformation, and fracturing etc.
从地层的异常孔隙流体压力、局部构造形变、断裂作用等多方面分析了ZJD地区裂缝的成因机理。
Experiments were carried out on tight gas formation core sample with a water base crosslinked gel fracturing fluid.
在室内用水基冻胶压裂液浸入致密气层岩心，进行了伤害试验研究。
Therefore, the number of perforation and the formation properties should be considered in designing the limited entry fracturing for better estimation of the fracture parameters and the improvements.
因此，进行限流压裂设计必须综合考虑炮眼个数、地层特性等因素对限流压裂施工的裂缝几何参数的影响，以准确预测各层裂缝几何参数和改造程度。
Abstract: Casing failure occurs frequently during the hydraulic fracturing process of shale gas formation, which seriously influences the shale gas recovery efficiency.
摘要：在页岩气开采的水力压裂过程中，套损时有发生，严重影响页岩气开采效率。
The maximum treating pressure is determined to avoid fracturing the formation or damaging completion components.
确定最高处理压力是为了避免压开地层或损坏完井部件。
A procedure conducted to establish the rate and pressure at which fluids can be pumped into the treatment target without fracturing the formation.
在没有将地层压开的情况下为确定能够将流体泵入处理目的层的流量和压力所进行的程序。
On the other hand, the effective large-scale sand fracturing requires optimum reservoir formation, fracturing fluid and techniques, and systematic control of the fracturing quality.
另一方面，大型加砂压裂作业有效，需有机地匹配和优化储层、压裂液和工艺，并系统地控制压裂质量。
Acid fracturing is an important stimulation technique for carbonate formation, which is widely used in the oil field.
酸化压裂是碳酸盐岩油藏增产的重要措施，在现场得到了广泛应用。
A new view that the formation and evolution of the deformed part is the main internal cause of stress fracturing material is firstly put forward.
首次提出了变形局部化的形成与演化是材料准脆性断裂主要内因的新见解。
The acid fracturing is an important measure which increases the output of the low-permeability carbonate formation. The leaking into reservoir of acid is controlled by many factors.
酸化压裂是低渗透碳酸盐岩地层进行增产改造的一项重要措施，酸液向地层大量滤失受多种因素控制。
In traditional drilling, pressure often causes formation damage and results in a delay before the formation reaches full production or forces companies to perform fracturing jobs on the well.
除钻井之外，压力经常引起架构损坏，导致架构在投入全能力生产或是执行龟裂工作之前出现异常现象。
These three kinds of techniques of well testing, step rate test and injection test at pre-fracturing are conducted to acquire formation parameters and applied in one CBM well successfully.
将地层测试、升排量注入与压降测试、注入与压降测试三种测试工艺在煤层气井压裂前实施，以获取地层参数，并将这三种方法在同一口煤层气井上成功进行了应用。
Fracture spacing is an important fracturing phenomenon in crustal rock formation and geotechnical engineering structures, but its formation mechanism is not clear.
在地壳岩层或岩土工程结构中，有一个非常重要的破裂现象，即间隔破裂现象，其形成机制到目前仍不十分清楚。
Fracturing is the key technology for deep tight reservoirs' stimulation, while abnormal formation fracture pressure always restricts successful fracturing of these reservoirs.
压裂是深层致密油气改造的关键技术，而破裂压力异常是制约这类储层压裂成功实施的技术难题。
This paper explores its mechanism, analyzes and discusses some field methods for evaluating the pre-fracturing formation pressure, and hopes can provide reference and aid for fracturing work…
文中对此进行了机理上的探讨，并分析讨论了压前地层压力的一些现场评价方法，以期对国内油田的压裂工作提供借鉴和帮助。
This paper explores its mechanism, analyzes and discusses some field methods for evaluating the pre-fracturing formation pressure, and hopes can provide reference and aid for fracturing work…
文中对此进行了机理上的探讨，并分析讨论了压前地层压力的一些现场评价方法，以期对国内油田的压裂工作提供借鉴和帮助。
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