Package yarn, when bleached by the special oxidative bleaching agent 197, can reduce looming holes, losses, and color difference between layers after dyeing.

The parameters of Quaternary fault activities such as the growth index,fault throw and fault activity rate are calculated to analyze the characteristics of fault activities in the Huimin subbasin and four orders of subbasin-controlling faults are distinguished.

Some conclusions drawn from the fault throw analysis of Zhen①、Zhen②' and Zhen② faults,are as follows:Zhen① fault forms in Taizhou period and acts intensively in Funing period.

Different sedimentary facies zones have different water absorbing rule during waterflood development and water-drive reservoir is constantly flushed and reformed,which made the sedimentary facies zones,having good physical property of reservoir,more apparent by waterflood reform action and led the interlayer difference in waterflood input wells to gradually become larger.

With the analysis of cluster and correlation,this paper finds a polynomial connection with one unknown and quadratic expression existing in interlayer pressure difference, interlayer thickness and cementation factor of cement BI, which is used to appraise the quality factor of well cementing.

Determining the anisotropic parameters of fractured formation by using P-wave interval moveout;