裂缝地层漏失规律研究

doi:10.3863/j.issn.1000-2634.1992.03.005

西南石油大学学报(自然科学版) ›› 1992, Vol. 14 ›› Issue (3): 27-34.DOI: 10.3863/j.issn.1000-2634.1992.03.005

裂缝地层漏失规律研究

杜春常¹ 刘文忠²

1.西南石油学院 2.四川石油局川东开发公司

收稿日期:1991-12-10 修回日期:1900-01-01 出版日期:1992-08-20 发布日期:1992-08-20
通讯作者: 杜春常

STUDY OF LOST CIRCULATION LAW IN CREYICED FORMATION

Du Chun-chang¹ Liu Wen-zhong²

1.Dept.of Oil Exploitation 2.Oil Exploitation Company of East Sichuan

Received:1991-12-10 Revised:1900-01-01 Online:1992-08-20 Published:1992-08-20
Contact: Du Chun-chang

摘要/Abstract

摘要： 本文根据地下裂缝的漏失特性，建立了地下裂缝漏失规律的数学模型，并导出了各种流体在裂缝中的流动挽律。根据流动规律可以定量分析和计算漏速或漏失量与压差、裂缝尺寸、钻井液流变性能等之间的关系，这时优选优配堵漏荆的性能，选择合理的堵漏方法，提高防漏堵漏的成功率具有重要的指导意义。

关键词: 裂缝漏失层流动模型堵漏

Abstract: According to the properties of lost circulation in the creviced formation
this paper presented a mathematical model of the lost circulation law, It is
from this mathematical model that the flow Iaw of various fluids is derived.
On the basis of the flow law, the relation between leakoff velocity or leak-
off rate and pressure difference, crevice sizes and rheological properties of
drilling fluids can be quantitatively analyzed and calculated，It is of great
guiding significance to optimizing the plugging materials of lost circulation
and reasonable plugging methods, and to improving the lost circulation
effectively in the drilling process,

Key words: Fracture Lost circulation zone Flow model Plu

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