STUDY AND APPLICATION OF LOW DAMAGE RATARD-ED ACID IN LOW PERMEABILITY SANDSTONE RESER-VOIR

doi:10.3863/j.issn.1000-2634.2004.02.018

西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (2): 64-66.DOI: 10.3863/j.issn.1000-2634.2004.02.018

• 油气化学工程与化工 • Previous Articles Next Articles

STUDY AND APPLICATION OF LOW DAMAGE RATARD-ED ACID IN LOW PERMEABILITY SANDSTONE RESER-VOIR

YAO Yi-ming ZHAIYi XING De-gang et al.

(Petroleum Engineering Technique Institute of Henan Oilfield company, Nanyang Henan 473132, China)

Received:2003-05-20 Revised:1900-01-01 Online:2004-04-20 Published:2004-04-20
Contact: YAO Yi-ming

Abstract

Abstract: Hydraulic fracturing has been unsuccessful because of coal-bed and soft formation in Baolang Oilfield. A new type retarded acid with low damage has been studied, which is aimed at the formation characteristics of high detritus content, more filling substance in porous, small pore and throat radius and high impurity substance in the pore and throat in low porosity and permeability reservoir. Results by experiment has shown thatthe retarded acid is of high corro-sion capacity to rock, low reaction velocity and interface tension,high anti-emulation and breaker effect, easy to discharge from the formation. It has been proved that it is a newtechnique for exploitation of Baolang low permeability reservoir.

Key words: low permeability reservoir, sand formation, re-tarded acid, stimulation

CLC Number:

YAO Yi-ming ZHAIYi XING De-gang et al.. STUDY AND APPLICATION OF LOW DAMAGE RATARD-ED ACID IN LOW PERMEABILITY SANDSTONE RESER-VOIR[J]. 西南石油大学学报(自然科学版), 2004, 26(2): 64-66.

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STUDY AND APPLICATION OF LOW DAMAGE RATARD-ED ACID IN LOW PERMEABILITY SANDSTONE RESER-VOIR

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