The relative amplitudes of these two kinds of acoustically associated electric fields depend on formation water salinity and differences of borehole fluid salinity.
这两种转换电场幅度的相对大小，与地层水矿化度及其与井中水矿化度差异有关。
To pump fluid through the whole active fluid system, including the borehole and all the surface tanks that constitute the primary system.
通过整个主动的流体体系泵送流体，这一系统包括井眼和所有构成主要循环系统的地面罐。
The theoretical result is in good agreement with the experimental result, proving that FEM is an effective way to study sonic field in fluid filled borehole in the complex formation.
数值计算结果与实验结果具有很好的一致性。结果表明，有限元素法是研究复杂地层充液井孔中声场的有效工具。
The low density drilling fluid has borehole excavation effect on compensated neutron porosity logging, and by this way apparent porosity is lower than the true value.
低密度井眼流体会对补偿中子孔隙度测井产生井眼挖掘效应，使视孔隙度值低于真孔隙度，且井眼流体密度越小，井眼尺寸越大，地层孔隙度越大，井眼挖掘效应越明显。
The acoustic wave field excited by a pulsed point source in a fluid-felled borehole surrounded by horizontal multiple-layered media is solved by the send-analytical method.
针对声波测井薄层探测的需要，用半解析方法求解了地层为水平多层介质时柱状井孔内脉冲点源激发的声场。
Further investigation on the propagation of elastic waves along a fluid-filled borehole in slow formation is studied in the paper.
木文对低速地层裸眼井中弹性波的传播问题作了进一步研究。
To meet the requirements of well cementing fors mall borehole and small annular space, the composite plastic fluid loss additive PT-2 was studied.
为适合小井眼、小间隙井的固井要求，研究了复合塑性降滤失剂PT—2体系。
To meet the requirements of well cementing fors mall borehole and small annular space, the composite plastic fluid loss additive PT-2 was studied.
为适合小井眼、小间隙井的固井要求，研究了复合塑性降滤失剂PT—2体系。
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