Jetting Pressure Field in Formation Cavities during Hydrajet Fracturing

doi:10.3863/j.issn.1674 – 5086.2011.04.015

西南石油大学学报(自然科学版) ›› 2011, Vol. 33 ›› Issue (4): 85-88.DOI: 10.3863/j.issn.1674 – 5086.2011.04.015

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

Jetting Pressure Field in Formation Cavities during Hydrajet Fracturing

QU Hai1， 2， LI Gen-sheng2， HUANG Zhong-wei2， LIU Zu-lin3， SHI Ming-jie3

1. Research Institute of Petroleum Engineering， SINOPEC， Chaoyang， Beijing 100101， China； 2. School of Petroleum Engineering，China University of Petroleum （ Beijing ）， Changping， Beijing 102249， China； 3. Zhongyuan Oilfield Company， SINOPEC， PuyangHenan 457001， China

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

Abstract

Abstract: Hydrajet-fractruing is a new stimulation technique in oilfield. It is very necessary to study jet parameters.
Based on the experiments and computational method of fluid dynamics， the jet pressure field around a cavity has
been calculated. The velocity and pressure in cavity is obtained by fluid simulation. The following parameters were
analyzed： nozzle space location， the number of jet， cavity shape， differential pressure and nozzle diameter. The
result shows that the pressure in cavity will increase with the drop of nozzle pressure and the increase of nozzle
diameter. The jetting stream creates the same pressure in the cavities in spite of their different shapes. The location
and the number of nozzle have no influence to the cavity pressure. The conclusions can provide scientific basis for
the oilfield performance of hydrajet-fracturing.

Key words: hydrajet-fracturing, experiment, jet parameters, pressure distribution, fluid simulation17

CLC Number:

TE357.1

QU Hai;;LI Gen-sheng;HUANG Zhong-wei;LIU Zu-lin;SHI Ming-jie. Jetting Pressure Field in Formation Cavities during Hydrajet Fracturing[J]. 西南石油大学学报(自然科学版), 2011, 33(4): 85-88.

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Jetting Pressure Field in Formation Cavities during Hydrajet Fracturing

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