PREDICTION METHOD OF THE PRESSURE FALL IN PRODUCING WELL SECTION OF SNAKY WELL

doi:10.3863/j.issn.1000-2634.2006.05.012

西南石油大学学报(自然科学版) ›› 2006, Vol. 28 ›› Issue (5): 44-46.DOI: 10.3863/j.issn.1000-2634.2006.05.012

• 石油与天然气工程 • Previous Articles Next Articles

PREDICTION METHOD OF THE PRESSURE FALL IN PRODUCING WELL SECTION OF SNAKY WELL

QI Zhi-lin DU Zhi-minTANG YongSHU Qiu-juWANG Wei

Working Station for Postdoctoral Scientific Research of Zhong yuan Oil Field Company Ltd., Puyang Henan 457001,China

Received:2005-07-05 Revised:1900-01-01 Online:2006-10-20 Published:2006-10-20
Contact: QI Zhi-lin

Abstract

Abstract:

Snaky well is a new type of complex well. Its producing well section is rugged longitudinally. The flow property of Snaky wellbore is different from horizontal pipe and horizontal well's. The article researched the flow property of Snaky wellbore and analyzed the flow for the minielement section and perforation section of the snaky well. Based on the continuity equation and the momentum equation, the pressure fall models of wellbore flow within an openhole and a perforated completion snaky well bore are established .The calculating methods of pressure fall were proposed for producing well section of the snaky well under the two working systems of constant production and constant bottomhole pressure. The pressure fall of the producing well section of an openhole completion snaky wellbore was calculated separately using the model established in the article and the calculating model of pressure fall for the horizontal section of the horizontal well .The results showed the pressure fall of the producing well section of snaky well couldn't be calculated with the pressure fall model of the horizontal sections of conventional horizontal wells. The pressure fall of producing well section of snaky well couldn't be omitted.

Key words: snake well, pressure fall, prediction, method, complicated structure well, horizontal well

CLC Number:

ＴＥ34

QI Zhi-lin DU Zhi-min TANG Yong SHU Qiu-ju WANG Wei. PREDICTION METHOD OF THE PRESSURE FALL IN PRODUCING WELL SECTION OF SNAKY WELL[J]. 西南石油大学学报(自然科学版), 2006, 28(5): 44-46.

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PREDICTION METHOD OF THE PRESSURE FALL IN PRODUCING WELL SECTION OF SNAKY WELL

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