The Research on the Biggest Borehole Curvature that Allowed through for theRotating Casing

  • سال انتشار: 1393
  • محل انتشار: ماهنامه بین المللی مهندسی، دوره: 28، شماره: 3
  • کد COI اختصاصی: JR_IJE-28-3_020
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 435
دانلود فایل این مقاله

نویسندگان

Y. BU

Department of oil-gas well engineering, China University of Petroleum (east China), the member of innovative team drilling and completion

Y. LIU

CNPC Bohai Drilling Engineering Company Limited, The first drilling company, Tianjin

C WAN

Department of oil-gas well engineering, China University of Petroleum (east China), the member of innovative team drilling and completion

H. YUAN

Department of oil-gas well engineering, China University of Petroleum (east China), the member of innovative team drilling and completion

چکیده

With the development of highly-deviated well cementing techniques, rotating casing cementingtechnology has got more and more attention. The rotating casing technique can improve thedisplacement efficiency of cement paste, and then enhance the quality of well cementation. In the stucksection, the rotating casing can redress the well to make the casing run sequentially. The casingendures shear stress in rotating, besides axial stress, bending stress, circumferential stress and radialstress which are produced by inside and outside casing pressure stress. These forces make it morecomplicated when calculate the maximum curvature in rotating condition than that without rotation.The paper, by analyzing the casing stresses in rotating condition, assumes a stress model of the casinginfinitesimal for rotating casing. It puts forward the calculation method for the maximum allowableborehole curvature in casing bucking deformation, or when casing couplings and thread seal fail underrotating condition. It also determines the biggest borehole curvature that allowed though, laying a basefor the design and construction of the highly-deviated well casing.

کلیدواژه ها

Rotating CasingMaximum Allowable Borehole CurvaturePlastic DeformationCasing Yield LimitTensile StrengthTap Sealed

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.