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Hole Cleaning in Highly Deviated Wells and Application Analysis

Author: ChengYuSheng
Tutor: QiuZhengSong；XieKeJiang
School: China University of Petroleum
Course: Petroleum and Natural Gas
Keywords: Highly deviated wells Hole cleaning Cutting transport Field Application
CLC: TE243
Type: Master's thesis
Year: 2011
Downloads: 162
Quote: 1
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Abstract


With the development of the world economy , increasing demand for energy , oil as the main energy consumer goods plays a vital role in the development of the world economy . During drilling , especially in highly deviated wells during drilling , hole cleaning situation is one of the important factors of impact from the drilling and mine safety . Highly deviated wells cuttings transport mechanism , this paper established a three-tier model of highly deviated wells cutting transport , was solved by the use of software programming , can be used to calculate the thickness of the cuttings bed and cuttings bed transport velocity ; according to three layer model solution results , the preparation of the hole cleaning analysis software can be used for the analysis of wellbore clean condition and optimize the performance parameters of drilling and drilling fluid ; analysis shows : ?6 The increase drilling fluid an arbitrarily YP / PV and density are well eye clean condition improved , but Φ6, Φ3, YP / PV increased to a certain extent , the contribution of the hole cleaning is not that big ; changing drilling parameters, including displacement, speed and ROP on the borehole a clean condition has a significant impact ; changing the outer diameter of the drill pipe , the condition of the hole cleaning , but not the main factors . Ledong 22-1 Gas Field 17-1/2 \1/4 \with drilling fluids and engineering effective measures from the drilling speed increased significantly . Ledong 15-1 gas field , hole cleaning significantly higher levels ,17- 1/ 2 \1/4 \

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CLC: > Industrial Technology > Oil and gas industry > Drilling engineering > Drilling Technology > Directional drilling
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