STUDY OF HYDRAULIC BREAKING PROPERTIES OF PETROLEUM ENGINEERING ROCKS

doi:10.3863/j.issn.1000-2634.1999.01.012

西南石油大学学报(自然科学版) ›› 1999, Vol. 21 ›› Issue (1): 48-51.DOI: 10.3863/j.issn.1000-2634.1999.01.012

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STUDY OF HYDRAULIC BREAKING PROPERTIES OF PETROLEUM ENGINEERING ROCKS

Xiong Jiyou Liao Rongqing Sun Wentao Ru Dajun

Southwest Petroleum Inst

Received:1998-10-20 Revised:1900-01-01 Online:1999-02-20 Published:1999-02-20
Contact: Xiong Jiyou

Abstract

Abstract: A systematic study was carried out to reveal the internal relationship between physically- and mechanically- different rocks and their jet-breaking behaviors and to establish corresponding quantitative indices. Based on a large number of laboratory tests and theoretical analyses, the petroleum engineering
rocks are divided into five categories and eleven classes according to their characteristics and physics-mechanics properties. The quantitative relationship is established between different rock types and their jet hydraulic breaking, sing the rock’s compression strength as a quantitative index. It is found that the critical pressure factor of hydraulic breaking ranges from 0.172 to 0.269. Formulas of calculating hydraulic pressure values are presented, and the delayed critical time of rock jet breaking isdetermined experimentally.

Key words: jet drilling, theory, rock breaking, mechanism, rock type

CLC Number:

TE21

Xiong Jiyou Liao Rongqing Sun Wentao Ru Dajun. STUDY OF HYDRAULIC BREAKING PROPERTIES OF PETROLEUM ENGINEERING ROCKS[J]. 西南石油大学学报(自然科学版), 1999, 21(1): 48-51.

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STUDY OF HYDRAULIC BREAKING PROPERTIES OF PETROLEUM ENGINEERING ROCKS

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