Zhang Zhenhua, Yan Jienian. STUDY OF FORMATION DAMAGE EFFECT ON THE PRODUCTIVITY FOR DIRECTIONAL WELLS[J]. Oil Drilling & Production Technology, 2001, 23(6): 40-43,83. DOI: 10.3969/j.issn.1000-7393.2001.06.012
Citation: Zhang Zhenhua, Yan Jienian. STUDY OF FORMATION DAMAGE EFFECT ON THE PRODUCTIVITY FOR DIRECTIONAL WELLS[J]. Oil Drilling & Production Technology, 2001, 23(6): 40-43,83. DOI: 10.3969/j.issn.1000-7393.2001.06.012
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STUDY OF FORMATION DAMAGE EFFECT ON THE PRODUCTIVITY FOR DIRECTIONAL WELLS

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  • The productivity equation containing skin factors for directional wells in the infinite reservoir was provided under the condition of the single and stable-state flow. A coordinate transformed method was adopted to calculate the true skin factor Sd and the pseudo-skin factor Sθ in the directional wells. It has been confirmed that the accuracy of calculated results using the productivity equation is in good agreement with the actual data. It can be applied to the fields for using.
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