[1]龚伟安.有扶正衬管的双层组合套管的研究[J].石油钻采工艺,1996,18(3):001-8.[doi:10.3969/j.issn.1000-7393.1996.03.001]
 Gong Weian.STUDY ABOUT THE DOUBLE-LAYER COMBINED CASING WITH STABILIZED LINER[J].Oil Drilling & Production Technology,1996,18(3):001-8.[doi:10.3969/j.issn.1000-7393.1996.03.001]
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有扶正衬管的双层组合套管的研究
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《石油钻采工艺》[ISSN:1000-7393/CN:13-1072/TE]

卷:
18卷
期数:
1996年3期
页码:
001-8
栏目:
论文
出版日期:
1996-06-20

文章信息/Info

Title:
STUDY ABOUT THE DOUBLE-LAYER COMBINED CASING WITH STABILIZED LINER
作者:
龚伟安
长庆石油勘探局钻采工艺研究院
Author(s):
Gong Wei’an
关键词:
套管组合套管扶正器水泥浆顶替固井质量物理模型力学分析
Keywords:
casingpatterncasing centralizercement slurrydisplacingcementingqualityphysical modelmechanics analysis
DOI:
10.3969/j.issn.1000-7393.1996.03.001
摘要:
一般情况下,双层组合套管的抗外挤压力大于内、外层套管的抗外挤压力之和,其充要条件是环形空间完全被水泥封固,因此固井时必须提高顶替效率。套管偏心是影响顶替效率的关键因素。为此,提出在内层套管上用衬管来固定刚性旋流扶正器的双层组合套管的新结构,一是扶正器可保证套管同心;二是水泥浆成旋流状,可进一步提高顶替效率;三是衬管也有助于提高组合套管的抗挤毁能力。
Abstract:
In general,the compression resistance of double-layer casing can be summed,the annulus space must be adequately cemented.So while cemented,the displacement efficiency must be increased.The casing offcenter is a key factor to effect the displacing efficiency.So,a new constructure double-layer casing is supplied that is fixed with a stiff spiral centralizer in the internal casing.First,the centralizer can keep the casing centralization.Second,the cement slurry flows with spiral,the displacing can be increased.Third,the collapsing strength of the combined casing can be increased by the liner.

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备注/Memo

备注/Memo:
收稿日期:1995-05-18。
作者简介:龚伟安,1937年生。1958年毕业于北京石油学院钻采系,长期从事钻采工艺及钻采机械科研工作,两次获得国家科技进步奖,全国五一劳动奖章获得者,是享受政府津贴的国家级有突出贡献的专家,现任副院长兼总工程师、教授级高级工程师,本刊编委。
更新日期/Last Update: 1900-01-01