该气田地层裂缝发育,钻井过程中井漏和井塌问题非常严重,钻井作业十分困难。
Very severe problems during drilling were circulation loss and borehole collapse because of formation fracture growing, and drilling operation was very difficult.
屏蔽式暂堵技术是利用泥浆中固相颗粒在地层裂缝处形成堵塞而达到暂堵的技术。
A technique of temporary screen plugging for fractured reservoirs strata is proposed, by which the solid particles in the mud are used to plug up the fractures.
声电成像测井作为测井新技术,可以应用于地层裂缝识别、地应力分析、构造识别等方面。
As a new technology, acoustic and electric imaging well logging can be applied to formation fracture identification, ground stress analysis and structure identification, etc.
贝尔凹陷布达特群地层裂缝—孔(洞)双介质储集特征明显,裂缝和次生孔洞是布达特群潜山储集层的重要储集类型和储集空间。
The fracture-hole double medium porosity mode develops distinctly in the research area, fracture and secondary bole-hole are the most important reservoir type and accumulating space for oil.
地下水位是地层岩石裂缝和孔隙充满水的边界。
The water table is the underground boundary below which all the cracks and pores are filled with water.
按照地层内的天然应力,裂缝的翼部沿相反方向从井筒向外延伸。
The wings of the fracture extend away from the wellbore in opposing directions according to the natural stresses within the formation.
模型研究表明,利用本方法能够较精确地获得地下裂缝性地层的各向异性参数。
Modeling research shows that the method may be used to know the anisotropic parameters of fractured formation.
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。
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.
多级脉冲气体松弛岩层地应力压裂地层的过程中裂缝内爆燃气体压力分布影响裂缝起裂扩展。
Multistage pulse gas is flabby in the process of layer of terrane crustal stress fracture deflagrate inside break aeriform pressure is cracked since distributinging influence break patulous.
随着油田开发的进行,地层压力逐渐下降,水平裂缝趋于闭合,渗透率大幅下降,严重影响了生产能力。
With continuing an oilfield development, its formation pressure tends to decline along with the horizontal fractures being closed, the permeability drawdown and the productivity being damaged.
在火成岩地层中,它清晰地显示裂缝、孔洞以及风化残积的砾石。
In the igneous rock formation, CBIL shows fractures, vugs and weathered residual gravel clearly.
在地层中产生裂缝所需的压力。
The pressure necessary to initiate fractures in a formation.
对于应力敏感性强的储集层,过低的井底压力降低了近井地带地层的孔隙流体压力,导致裂缝趋于闭合。同时,井壁失稳的可能性也大。
To strong stress sensitivity formation, low BHP reduces pore fluid pressure of near wellbore are which results in the closure of formation fracture.
最后用复位实测法或计算机计算的方法分析出地层和裂缝的产状要素。
At last, the essential factors of the occurrence of formations and fractures are analyzed by using the reset actual-measurement method and computer-processed method.
但对地层压力系数低且裂缝较大的严重井漏往往失去作用。
However, its function was often lost upon the serious circulation loss occurring to the formation with low pressure coefficient and relatively macro fractures.
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。
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.
裂缝性地层表现出很强的各向异性,勘探难度很大。
Fractured formations show very strong azimuthal anisotropy, causing great difficulties in exploration.
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。
Fracture genesis mechanism in ZJD area is analyzed from the aspects of abnormal pore fluid pressure in formation, local structural deformation, and fracturing etc.
裂缝发育程度在裂缝性地层的研究中非常重要。
Study on the degree of fracture development in fractured formation is very important.
井漏是多裂缝地层钻井作业中经常发生的复杂情况之一。
Lost circulation is often happened during drilling in multi -fracture formation.
岩性、岩层厚度、断裂作用、构造应力场、局部构造、地层负荷与岩溶作用是控制裂缝发育的主要因素。
Lithology, rock stratum thickness, fracture process, structural stress field, local structure, stratum load and karst process are all main controlling factors for the development of the rift.
利用岩心描述、微裂缝电镜扫描、裂缝包裹体测试、地层倾角测井等多项资料对歧北地区下第三系深层碎屑岩储层裂缝进行分析。
Fractures in deep Eogene clastic rock of Qibei area has been analyzed through core description, scanning micro fissures by electron microscope, testing fracture wrap, and stratigraphic dip logging.
针对裂缝性地层的裂缝发育方位问题,建立具有任意方位角的方位各向异性黏弹性本构关系。
This work establishes a new constitutive relation on the azimuthally anisotropic linear viscoelastic media with an arbitrary azimuthal angle for the fractured strata.
酸液向地层的滤失参数,是压裂酸化设计时确定裂缝几何尺寸及裂缝闭合时间最关键的参数之一。
Filtrateloss parameter of acidizing fluid is one of the key parameters to determine fracture geometry and the time of closed fracture in fracturing and acidizing design.
酸液向地层的滤失参数,是压裂酸化设计时确定裂缝几何尺寸及裂缝闭合时间最关键的参数之一。
Filtrateloss parameter of acidizing fluid is one of the key parameters to determine fracture geometry and the time of closed fracture in fracturing and acidizing design.
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