油井参数对超声透射系数的影响

Influence of Oil Well Parame ters on Ultrasonic Transmission Coefficient

王阳恩 周克厚

W ang Yang’en Zhou K ehou

(长江大学物理科学与技术学院, 湖北荆州434023 )

School of Physics Science and
Technology, Y angtze Univer sity, Jingzhou 434023,
China

A ccording to the wave functions and the boundary
cond itions, the ultrason ic transm ission coeffic ient in o il w ell
w as deduced to study the influence o f o il we ll param eters on
the u ltrason ic transm ission coeffic ient. It was educed tha t the
u ltrason ic transm ission coeffic ient increases on the sm a ll s ide
w ith the increase o f the density and the sound speed o f the
w e ll liqu id and the cem ent stra tum. The u ltrason ic
transm ission coeffic ient v ary very sm a ll espec ially w ith the
increase o f the dens ity o f the cem ent stratum. A m ax im um of
the ultrason ic transm ission coeffic ient ex its when the sound
speed o f the rock stra tum increases. The u ltrason ic
transm ission coeffic ient reduces obv iously w ith the increase of
the density of the rock stratum. The artic le d iscussed the
effect o f the density and the sound speed o f the w e ll liqu id,
cem ent stratum and the rock stra tum on the u ltrason ic
transm ission coeffic ient.