EVALUATIONS OF THE LITHOLOGICAL CHARACTER AND PHYSICAL PROPERTY OF ROCKS   FROM THE RELATION BETWEEN WAVE VELOCITY AND PRESSURE - AN   EXPERIMENTAL-STUDY

CORC > 北京大学 > 地球与空间科学学院

	EVALUATIONS OF THE LITHOLOGICAL CHARACTER AND PHYSICAL PROPERTY OF ROCKS FROM THE RELATION BETWEEN WAVE VELOCITY AND PRESSURE - AN EXPERIMENTAL-STUDY
	SHI, G ; SHEN, LD
刊名	acta geophysica sinica
	1990
关键词	POROSITY PERMEABILITY TO AIR SKELETON DENSITY BULK DENSITY SOUND WAVE TIME DIFFERENCE EFFECTIVE OVERBURDEN PRESSURE
英文摘要	In this study, the porosity-phi, permeability to air K, skeleton density p(ma), bulk density p(b) and sound wave time difference DELTA(t) under different effective overburden pressure DELTA(p) of sandstone core collected from the oil/gas reservoir in the Guantao formation (Ng), Laoyemiao Oil Field are measured in laboratory; emphirical relationships of phi vs. K, phi vs. p(b), phi vs. DELTA(t) and V vs. DELTA(p)(DELTA(t) vs. DELTA(p)) are fitted by regression analysis; and the variation of sound wave time difference DELTA(t) with porosity-phi are measured when the cores are saturated with pore fluid of different salinity under the prerequisite of keeping the initial pore structure undisturbed. The results of study suggest that when the relations of phi-K, phi-p(b) and phi-DELTA(t) are correlative with one another, the data of sound wave time difference DElTA(t) and wave-velocity V can be used to explain the lithological character of reservoirs and thus to inverse the values of phi, K and p(b) of the reservoir; the effective onverburden pressure of strata has significant effects of the porosity and wave velocity of the reservoir and thus it is possible to evaluate the lithological characters and oil/gas storage capacity of reservoirs from the regularities of variation of velocity-pressure curves. These results are of important referential value for the data explanation of seismological exploration and well-logging of oil fields, and provide a new tool for predicting favorable areas of oil storage and evaluating the capacity of reservoirs.; Geochemistry & Geophysics; SCI(E); 0; 2; 212-219; 33
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/403586]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	SHI, G,SHEN, LD. EVALUATIONS OF THE LITHOLOGICAL CHARACTER AND PHYSICAL PROPERTY OF ROCKS FROM THE RELATION BETWEEN WAVE VELOCITY AND PRESSURE - AN EXPERIMENTAL-STUDY[J]. acta geophysica sinica,1990.
APA	SHI, G,&SHEN, LD.(1990).EVALUATIONS OF THE LITHOLOGICAL CHARACTER AND PHYSICAL PROPERTY OF ROCKS FROM THE RELATION BETWEEN WAVE VELOCITY AND PRESSURE - AN EXPERIMENTAL-STUDY.acta geophysica sinica.
MLA	SHI, G,et al."EVALUATIONS OF THE LITHOLOGICAL CHARACTER AND PHYSICAL PROPERTY OF ROCKS FROM THE RELATION BETWEEN WAVE VELOCITY AND PRESSURE - AN EXPERIMENTAL-STUDY".acta geophysica sinica (1990).