Qu Hai, Li Gensheng, Liu Ying. The Application of Dragged Multistage Hydrojet-Fracturing in Horizontal Well with Screen Pipe Completion[J]. Petroleum Drilling Techniques, 2012, 40(3): 83-86. DOI: 10.3969/j.issn.1001-0890.2012.03.017
Citation: Qu Hai, Li Gensheng, Liu Ying. The Application of Dragged Multistage Hydrojet-Fracturing in Horizontal Well with Screen Pipe Completion[J]. Petroleum Drilling Techniques, 2012, 40(3): 83-86. DOI: 10.3969/j.issn.1001-0890.2012.03.017

The Application of Dragged Multistage Hydrojet-Fracturing in Horizontal Well with Screen Pipe Completion

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  • Received Date: August 14, 2011
  • Revised Date: April 12, 2012
  • In order to stimulate horizontal wells with screen completion and decrease the risk in treatment,the dragged multistage hydrojet-fracturing(DHJF)was improved.Considering the characteristics of hydrojet technique,namely boosting pressure,sealing mechanism and decreasing the initial fracturing pressure,and the characteristic of screen completion,the jetting tool and sliding sleeve tools were combined and assembled at the end of treatment pipes.Then the DHJF was optimized to solve the problem of sanding in the fracturing string.The sanding risk of fracturing string could be greatly decreased.A horizontal well under screen completion was successfully fractured by DHJF.With 72 m3 proppants in total and the highest sand ratio of 40%,the length of three hydraulic fractures reached 110-135 m.Finally,the fracturing string was pulled out of the well.Micro-seismic mapping indicated that three hydraulic fractures were placed at strategically selected locations which improved the formation permeability.Daily oil production of Well SA increasede from 4.0-5.0 t/d to 25.9 t/d,proving good stimulation result in this well.
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