New model for fracturing fluid leakoff in naturally fractured gas fields and its application;
裂缝性气藏压裂液滤失模型的研究及应用
The model is established that fracturing fluid leakoff in coal bed with/without the reopened natural fractures, and its analytical solution is present.
建立了天然裂缝开启前、后的煤层压裂液滤失数学模型,给出了模型的解析解,并进行了计算分析,对于煤层压裂设计分析具有一定的实用意义。
However, few relevant researches have been done for acid fracturing due to the complicated leakoff mechanisms.
该方法是基于压裂施工过程和停泵后裂缝内物质平衡方程和连续性方程,结合裂缝几何参数计算模型,由压力降落变化,确定出裂缝几何尺寸、闭合压力、滤失系数等参数。
Present computation model of filtration for horizontal fracture,established for homogeneous reservoir,could not be used for filtration calculation of fracturing fluid in naturally-fractured reservoir.
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。
When acid flow along the fracture, the wormhole was developed because some of rock pore or nature fractures are denuded by the acid, thus the filtrateloss of the acid mostly occurs in wormhole.
酸液在酸压裂缝内流动时,有少数较大的岩石孔隙或天然裂缝首先受到过量酸液的溶蚀而迅速增长形成蚓孔,使滤失主要在蚓孔内发生。
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。
Therefore, it must be considered the effects of acidizing wormholes on acid leak-off in naturally-fractured reservoirs.
酸液在酸压裂缝内流动时 ,有少数较大的岩石孔隙或天然裂缝首先受到过量酸液的溶蚀而迅速增长形成蚓孔 ,使滤失主要在蚓孔内发生。
Two matter is often encountered in Carboniferous system layer when hydraulic fracturing: (1) unlocking of naturally fractures leads to the increasing of leak-off;(2) The producing of multi-fractures induces friction resistance to bring.
在石炭系天然裂缝性地层进行水力压裂改造时经常遇到两个问题:第一,天然裂缝大量开启导致滤失增加;第二,可能诱发阻力多裂缝的产生,摩阻大幅度增加。
Numerical simulation of fracturing-fluid filtrate loss in natural fracture type reservoir;
天然裂缝性储层压裂液滤失的数值模拟研究
Preparation and characterization of CTAB/polymer composite modification of montmorillonite as filtrate reducer;
CTAB/聚合物复合插层膨润土降滤失剂的制备与表征
A heat-resistant filtrate reducer was synthesized using 2-acrylamido-2-methylpropane sulfonic acid(AMPS),acrylamide(AM) and acrylic acid(AA) as raw materials and ammonium persulfate/sodium bisulfite as initiators by aqueous solution polymerization.
以2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、丙烯酰胺(AM)和丙烯酸(AA)为单体,采用过硫酸铵和亚硫酸氢钠氧化还原体系,通过水溶液聚合法合成了耐温型降滤失剂。
A zwitterionic polymer filtrate reducer PMADA were synthesized by copolymerizing in aqueous solution with DMDAAC,AMPS,MA,and AM as monomer and a redox initiator.
以二甲基二烯丙基氯化铵(DMDAAC)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、马来酐(MA)、丙烯酰胺(AM)为单体,氧化还原体系为引发剂,利用水溶液聚合法合成了两性离子聚合物降滤失剂PMADA。
soluble fluid loss particle
可溶性防滤失固体颗粒
Dollarhide-Hall method
一种初期动滤失测定法
Mixed Salt Base Mud Used for Assessing Polymeric Filtrate Loss Reducers
钻井液用合成聚合物降滤失剂滤失量测定方法探讨
Synthesis and Properties of Reducing Filtrate Loss of Phosphinomethyl Phenolic Resin;
膦甲基酚醛树脂的合成与降滤失性能
Preparation of Low Filtrate Loss Well Killing Fluid for Use in Honggang Gas Field
吉林红岗区块低滤失气井压井液研制
The Laboratory Study on New Highly-effective Lost Circulation Material of High Fluid Loss
新型高效高滤失堵漏材料的室内研究
SYNTHESIS AND EVALUATION OF FILTRATE REDUCER JLS-1
钻井液降滤失剂JLS-Ⅰ的合成与评价
Synthesis of the AM/AOPS/DEDAAC Copolymer Anti-sloughing Filtrate Reducer
AM/AOPS/DEDAAC共聚物防塌降滤失剂的合成
Research and Evaluation of Temperature-Resistant and Salt-Resistant Filtration-Reducing Agent for MMH Mud.
正电胶泥浆抗温抗盐降滤失剂的研制与评价
The Study on Fluid Loss Mechanism of Emulsified Fracture Fluid in Tuffaceous Reservoir;
凝灰质储层乳化压裂液降滤失机理研究
A Novel Calculation Method of the Acid Leak-off in the Acid Fracturing;
考虑酸蚀蚓孔效应的酸压滤失模型及应用
Synthesis of Fluid Loss Additive and Flocculant and Performance Test
木质素降滤失剂和絮凝剂的合成及性能测试
Study on pressure drop of non-stationary filtration with fiber media
纤维过滤介质非稳态过滤压力损失的研究
Experimental Research on the Head Loss of the Filter and the Adsorption Bed
过滤池和吸附床水头损失的实验研究
Study on Collection Efficiency and Pressure Drop of Pleated Air Filters
褶型空气滤清器捕集效率及压力损失
Design of signal EMI filter with mismatched impedance
阻抗失配条件下信号EMI滤波器的设计
Design of Non-distortion Analog Filter Based on Matlab
基于Matlab的无失真模拟滤波器设计
Clinical Analysis of Risk Factors of Failed Trabeculectomy
青光眼滤过术后眼压失控的原因分析