Fracture Prediction of Changxing Formation in Huanglongchang Structure

doi:10.3863/j.issn.1674 – 5086.2011.04.007

西南石油大学学报(自然科学版) ›› 2011, Vol. 33 ›› Issue (4): 39-43.DOI: 10.3863/j.issn.1674 – 5086.2011.04.007

• 地质勘探 • Previous Articles Next Articles

Fracture Prediction of Changxing Formation in Huanglongchang Structure

WANG Shi-lin1， QIN Qi-rong1， DONG Hai-ying2， SU Pei-dong1

1. School of Engineering and Resources， Southwest Petroleum University， Chengdu， Sichuan 610500， China； 2. No. 1 ProductionPlant， Xinjiang Oilfield Company， PetroChina， Karamay， Xinjiang 834000， China

Received:1900-01-01 Revised:1900-01-01 Online:2011-08-20 Published:2011-08-20

Abstract

Abstract: ReefreservoiristhemainreservoirtypeofChangxingFormationinHuanglongStructure， butthedynamic
data analysis suggests that different production wells vary dramatically in productivity. Research shows that the
productionofsinglewellismainlyaffectedbyfractures. Therefore， predictionsonfracturesofChangxingFormation
in Huanglong Structure can better guide well pattern and development. By analyzing the tectonic origin and power
source of the study area， this paper builds up the structure formation models of the study area. By combining
petroleum geology， structural geology， rock mechanics and a variety of production materials and by applying two-
dimensional numerical simulation of paleo-tectonic stress field， the cracking degree of the rock mass is predicted.
Then the failure approach index is calculated and the relation between fracture development and the cracking degree
oftherockmassisdefined， whichhelpstodeterminethedevelopmentlevelsoffracturesandmakesacomprehensive
prediction of fracture development， fracture types and attitude. Vector direction of principal stress in early and late
stages in Huanglong Chang classifies the fracture development into 2 stages， 4 grades and 6 categories.

Key words: Structure analysis, fracture, numerical simulation, Changxing Formation, Sichuan Basin

CLC Number:

TE122.2

WANG Shi-lin;QIN Qi-rong;DONG Hai-ying;SU Pei-dong. Fracture Prediction of Changxing Formation in Huanglongchang Structure[J]. 西南石油大学学报(自然科学版), 2011, 33(4): 39-43.

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Fracture Prediction of Changxing Formation in Huanglongchang Structure

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