Wang Deyu, Pu Xiaolin, Shi Taihe, Lu Xitan, Zhang Jianqing. INTRODUCTION AND EVALUATION OF MODE DL-1 DEVICE FOR LOST CIRCULATION CONTROL[J]. Oil Drilling & Production Technology, 1996, 18(5): 44-48. DOI: 10.3969/j.issn.1000-7393.1996.05.009
Citation: Wang Deyu, Pu Xiaolin, Shi Taihe, Lu Xitan, Zhang Jianqing. INTRODUCTION AND EVALUATION OF MODE DL-1 DEVICE FOR LOST CIRCULATION CONTROL[J]. Oil Drilling & Production Technology, 1996, 18(5): 44-48. DOI: 10.3969/j.issn.1000-7393.1996.05.009
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INTRODUCTION AND EVALUATION OF MODE DL-1 DEVICE FOR LOST CIRCULATION CONTROL

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  • The device simulates extrusion and static pressure difference of the well wall by applying confined pressure,driving pressure and back pressure to the core.Test conditions are similar to the bottomhole conditions.The device could be used in static and dynamic tests,in testing the internal mud cake reversed bearing capacity and reversed driving flow.Test taken in Changqing Oilfield was successful and was verified in field operation.
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