frac

3-D model of analyzing frac pressure decline and its application

压裂压力递减分析三维模型与应用

Fracture simulation and evaluation of frac and pack in high permeability reservoirs

高渗油层压裂充填裂缝模拟评价研究

Research and application of low damage frac technology for low permeability and tight gas field in Western Sichuan

川西低渗致密气藏低伤害压裂技术研究及应用

Mini - Frac Techniques for Gas Reservoirs in North Hubei

鄂北天然气藏测试压裂配套工艺技术

Status and Prospects of Frac Fluid Additives for 90 's

90年代压裂液添加剂的现状及展望

Transient distribution of length of Frac ( D ) / G / 1 queueing system

Frac（D）/G/1排队系统的队长的瞬时分布

Crude oil is used as the base fluid of gelled frac fluid most commonly .

目前各油田普遍使用本油田的原油作为油基冻胶压裂液的基液，不同产地的原油其组分不同。

Transient Distribution of the Length of Frac ( M ) / M / 1 Queuing System

Frac（M）/M/1排队系统队长的瞬时分布

Frac and pack sand control technology would be proved to be not only realizable in technique but also feasible in economy .

对于压裂充填防砂工艺，除了从技术上证实其可行，还需要从经济角度对其进行评价分析。

The total productivity ratio of the frac pack means the product of simulation ratio and gravel pack productivity ratio .

压裂增产倍数与砾石充填产能比的乘积即为压裂充填防砂后的总产能比。

The Research of OPP Overpressure Protector of Frac Unit

压裂机组OPP超压保护系统的研究

Perfo Frac is a new technique which combines perforation with high energy gas fracturing to improve near wellbore zone .

复合射孔是射孔和高能气体压裂相结合对近井地层进行改造的一项新技术。

Study on formation damage by frac - Turing stimulation for Jurassic low - permeable gas reservoirs in West si - Chuan

川西侏罗系低渗气藏压裂增产措施中地层损害研究

The analysis of frac pressure decline data is a common means of evaluating fracure patterns and of obtaining the important parameters for fracturing design .

压裂压力递减资料分析是评价压裂裂缝形态、获取压裂设计重要参数的常用手段。

Nail-pry reduction and supporting fixation for tibial plateau frac - ture : A report of 21 cases

撬拨复位托举固定治疗胫骨平台骨折21例报告

A low damage frac fluid LMWF

低伤害LMWF压裂液

Main work included mechanism study of sand control and stimulation of frac & pack , selection of material , tip screen-out fracture design and economic evaluation .

研究内容主要包括压裂充填防砂与增产机理、防砂设计、压裂设计以及经济效益分析与比较。

We give the backward equation and the forward equation of Transient Distribution of the Length of Frac ( M ) / M / 1 Queuing System .

本文给出了Frac（M）/M/1排队系统队长的瞬时分布的向后方程和向前方程。

Frac and pack technology is both a effective stimulation and sand control treatment , and a new completion method in unstable crumbly formation and high permeability reservoir .

压裂充填工艺是中高渗透油气层和不稳定松软地层的有效增产、防砂措施，又是一种新的完井方法。

Such discover presents some bases for forecasting the development zone of frac - tures in an old gas field , and for the second exploration and exploitation .

这一发现为老气田裂缝发育带的预测和二次勘探、开发提供了依据。

It costs about $ 1,000 to launch a blog of this type , 211 a small frac - tion of launching a magazine .

发布一个网志所需的费用大约为1000美元，这仅仅是发布一本杂志所需费用的零头。

Conclusion : Cancellated bone screw possesses characteristic of firm fixation and uncomplicated operation in the treatment of ankle joint frac - ture and dislocation .

结论：（1）松质骨加压螺钉在踝关节骨折治疗中具有固定可靠、操作简单的特点。

According to the geological characteristics and the dynamic characteristics of oil and gas production of Daanzhai oil and gas reservoir , the stimulation of acid frac by coagulation is proposed .

本文针对大安寨油气藏的地质特征，并结合油气藏开采效果评价，提出了采用胶凝压裂酸化（酸压）技术改造储层的增产措施。

The acid frac process is optimized and matching measures of acid frac added by liquid nitrogen and preprocessing before acid frac are implemented for different types of reservoirs .

针对不同类型的储层，对酸压工艺进行了优化，并实施了加液氮酸化、压前预处理等配套措施。

Lysholm knee joint function score was 86.5 + 7.6 for patellar fractures , tibial plateau frac - tures and condylar crista fractures .

髌骨骨折、胫骨平台及髁间嵴骨折采用Lysholm膝关节功能评分，为（86.5+7.6）分。

In different noncombustible experiment conditions the fluctuation range of frac - tal dimensions for the differential-pressure signals of entrained-flow gasifier is 1.25 & 1.40 .

在不同实验条件下，冷态气化炉内压力波动信号的分形维数变化范围为1.25～1.40。

The concentration of PA6 solution was 8 % - 18 % by mass frac - tion and the diameter of the obtained fiber was 50-500 nm while using HFIP as solvent .

HFIP作为溶剂时PA6可纺丝溶液质量分数为8%～18%，纤维直径为50～500nm；

A way to utilize the coverage room temperature hardness of creep fractural speciments to estimate creep frac - ture time or to predict the remnant life of heat-resisting steel parts has been found .

提出了一种采用蠕变破断试样室温硬度近似预测耐热钢件蠕变破断寿命的方法。

The NVG model and the true mass quality model proposed by the authors can be used to calculate the void frac - tion for the calculation of pressure drop in low-flow sub-cooled boiling correctly .

笔者提出的真实含汽率模型和净蒸汽产生点（NVG）空泡率模型可用于蒸汽-水强迫循环低流速过冷沸腾压降计算。

This method can be used in not only real time analyzing in the coal rock frac , but evaluating and analyzing after frac . It provides a new tool for research the mechanics parameters of the coal rock by fracturing treatment information .

此方法既可用于煤岩压裂的实时分析，也可用于压后评估分析，为利用压裂施工资料进行煤岩岩石力学参数的再认识提供了又一新的工具。