Research and development on foam breaking and recycling technology in air-foam drilling |
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| Authors: | CAO Pinlu ZHANG Jincheng WU Xia HUANG Jinyun Institute of Drilling Engineering Technology Zhongyuan Petroleum Exploration Bureau Puyang Henan China |
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| Institution: | CAO Pinlu,ZHANG Jincheng,WU Xia , HUANG Jinyun Institute of Drilling Engineering Technology,Zhongyuan Petroleum Exploration Bureau,Puyang 457001,Henan,China |
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| Abstract: | In recent years,air-foam combining the advantages of both liquid and air drilling has been utilized as a drilling medium. Air-foam drilling has proved its efficiency in numerous situations where serious problems were encountered,such as in fractured formations and depleted or high permeable zones. However,the major disadvantage of air-foam drilling system is that the foam can only be used once,so that an extremely large pit is required to contain the foam to allow sufficient room for cuttings and for the fo... |
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| Keywords: | air-foam drilling foam breaking recycling |
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