|本期目录/Table of Contents|

[1]杨 进 李文龙 胡志强 殷启帅 李舒展.深水钻井水下井口稳定性研究进展[J].中国海上油气,2020,32(04):124-130.[doi:10.11935/j.issn.1673-1506.2020.04.015]
 YANG Jin LI Wenlong HU Zhiqiang YIN Qishuai LI Shuzhan.Research progresses on subsea wellhead stability of deep water drilling[J].China Offshore Oil and Gas,2020,32(04):124-130.[doi:10.11935/j.issn.1673-1506.2020.04.015]
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深水钻井水下井口稳定性研究进展()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第32卷
期数:
2020年04期
页码:
124-130
栏目:
钻采工程
出版日期:
2020-07-25

文章信息/Info

Title:
Research progresses on subsea wellhead stability of deep water drilling
文章编号:
1673-1506(2020)04-0124-07
作者:
杨 进1 李文龙1 胡志强2 殷启帅1 李舒展1
(1. 中国石油大学石油工程教育部重点实验室 北京 102249; 2. 中国石化石油工程技术研究院 北京 100101)
Author(s):
YANG Jin1 LI Wenlong1 HU Zhiqiang2 YIN Qishuai1 LI Shuzhan1
(1. Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, China; 2. SINOPEC Research Institute of Petroleum Engineering, Beijing 100101, China)
关键词:
深水钻井 水下井口 井口稳定性
Keywords:
deep water drilling subsea wellhead wellhead stability
分类号:
TE28+3
DOI:
10.11935/j.issn.1673-1506.2020.04.015
文献标志码:
A
摘要:
水下井口稳定性是影响深水浅层钻井作业安全的关键问题。总结了近年来国内外井口稳定性研究进展,主要分析了导管参数、土质性质、工程参数、环境载荷等因素对井口竖向、横向稳定性的影响,以及减少或避免出现井口稳定性问题而设计的水上防喷器系统、吸力桩井口基础装置、组合导管基础装置、导管承载力加强装置等特殊井口装置系统。本文研究成果可为我国深水钻井水下井口稳定性研究提供借鉴
Abstract:
Conventional oil-based drilling fluids used in the second Member of Weizhou Formation in Weizhou W oilfield that is prone to sloughing normally lead to mud shale hydration and dispersion, borehole instability and poor reservoir protection due to its low oil-water ratio, low emulsion breaking voltage and poor emulsion stability. Through analyzing the collapse mechanism of friable hard gray mudstone in the second Member of Weizhou Formation, a novel full oil-based plugging drilling fluid system was developed by increasing the oil-water ratio to improve the emulsion stability of drilling fluid and optimizing the plugging material with composite particle size. The laboratory tests showed that the novel full oil-based drilling fluid is of high emulsion stability, low plastic viscosity, little fluid loss and good sealing effect with promising anti-water and clay pollution capability. This drilling fluid has been successfully used in drilling eleven directional wells of Weizhou W oilfield and solved the problems of long open-hole section instability in the slough-proned layers of the second member of Weizhou Formation and poor reservoir protection. The research results in this paper can serve as reference for the future drilling in similar slough-proned friable hard mud shale formations and reservoir protection

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备注/Memo

备注/Memo:
收稿日期:2019-11-27 改回日期:2019-12-19*国家自然科学基金创新研究群体项目“复杂油气井钻井与完井基础研究(编号:51521063)”、“十三五”国家科技重大专项“复杂结构井、丛式井设计与控制新技术(编号:2017ZX05009-003)”、“深水表层管柱高效下入技术及深部复杂地层井壁稳定性研究(编号:2017ZX05032004-003)”部分研究成果。 第一作者简介: 杨进,男,教授,博士生导师,主要研究方向为海上油田钻完井。地址:北京市昌平区府学路18号中国石油大学(北京)安全与
更新日期/Last Update: 2020-07-20