Abstract: It has been 12 years since 1981 introducing integreted log instrument from Gearhart Co., England. This paper presents the achievements obtained by audacious technologica1 innovation to it on the basis of introduction, digestion and assimilation with the instruments from abroad. It is documented that this new technique for oil/gas prospecting can not only be highly efficient and high quality for scientific drilling, but also be quickly to divide oil, gas and water beds. Especially, low pressure, low permibility and light oil/gas beds can be easily found, thus improving velocity and accuracy for hydrocarbon prospecting.

Key words: Integretedlog instrument (Mudlooging unit), Computer, Hardware, Software, Scientific drilling