tailieunhanh - Representative permeability types and their application in researching upper Oligocene sedimentary oil reservoir of ThT oil field

Permeability is the indispensable parameter in oil and gas reservoir studies. In fact of researching and operating on oil and gas fields worldwide, there are many types of permeability. Each permeability type has a specific characteristic according to the study purpose. In this article, the specific characteristics of some typical permeability as gas permeability; water permeability, effective permeability; relative permeability will be analyzed, especially concern to the role of each permeability type in oil reservoir study to assisting researchers has an overview to orient their study. | Science & Technology Development, Vol 18, 2015 Representative permeability types and their application in researching upper Oligocene sedimentary oil reservoir of ThT oil field • Tran Van Xuan Univerrsity of Technology, NVU-HCM (Received on March 4 th 2015, accepted on June 5 th 2015) ABSTRACT Permeability is the indispensable parameter in oil and gas reservoir studies. In fact of researching and operating on oil and gas fields worldwide, there are many types of permeability. Each permeability type has a specific characteristic according to the study purpose. In this article, the specific characteristics of some typical permeability as gas permeability; water permeability, effective permeability; relative permeability will be analyzed, especially concern to the role of each permeability type in oil reservoir study to assisting researchers has an overview to orient their study. Key works: Permeability, cut off value, mean value, relationship, HFU, cross plot, reservoir rock group. INTRODUCTION Brief introduction to the upper oligocene sedimentary reservoir of ThT oil field oligocene and lower miocene sediments from the SH-11 to SH-5 seismic surfaces. ThT structure is located in the Northwestern region of block 09-1, outside the White Tiger oil field. On the tectonic map, this region belongs to north-west zone of the single inclined lifting of BachHo unit (Fig. 1). ThT structure was discovered in 2010 based on the interpretation results of 3D seismic data in the area of the less studied ones of block 09-1. According to the delineated area that has prospects in the upper As at the date of , on the ThT prospect there were a wild cat well THT-1Х, one exploration well ThT-2X, one appraisal well THT-3XP, an early wells THT-4XP and two production wells (ThT-5P, 6P). According to the drilling results, the geological sections are mainly terrigenous sediments. Trang 46 TAÏP CHÍ PHAÙT TRIEÅN KH&CN, TAÄP 18, SOÁ T2 - 2015 ThT structure Fig 1. .