声速测井与VSP速度对比研究.pdf

第 14卷第 2期 西安文理学院学报: 自然科学版 o.l 14 No. 2 2011年 4月 JournalofX i anUniversity ofArts Science(Nat SciEd), Apr. 2011 : 2011) SP 郭 超, 焦 健 (陕西省延长石油集团研究院, 陕西 西安 710075) : SP,. SP ,, .: SP; , . , SP ; SP. : ISP; ; : P62 : A A Com parative Study of A coustic Log and V SP GUO Chao, JIAO Jian (Research Institute, ShaanxiY anchang Petroleum G roup, X i an 710075, China) A bstract: There are two velocity analysismethods: acoustic log and SP, each having itsmer its and demerits. This paper discusses the factors resulting in the errors of the two methods. Based on the studies of some samples, wegive an analysis of the interference ofmud fluid and the collapse of thewellwhich results in the errors of acoustic log. A comparative study leads to the conclusion that, first, the average velocity of SP ismore reliable than acoustic log; sec ond, the error discrepancy of acoustic log proves to be greater at the sectionswheremud fluid and collapse aremore severe, therefore, the average velocity of SP is alsomore accurate than acoustic log. The advantage of acoustic log lies in higher resolution. K ey words: ISP; acoustic log; section ,, , SP ( ). ,, , .,. SP. ,, SP, SP . : : ( 1982 ), , , ,. : . 第 2期 郭超, 等: 速测井与 SP速度对比研究 87 1 SP 1. 1 SP , SP, ,. SP ,. SP, 1.,, . : 2 2 X +H i V =