南海高温高压气田密集丛式井表层Ø660.4 mm井段安全钻井技术

来源 :天然气勘探与开发 | 被引量 : 0次 | 上传用户：ARCHERY6805068

【摘要】

：

南海高温高压气田采用丛式井模式,表层Ф660.4 mm井段集中批钻作业面临着上层隔水导管鞋易漏失、浅部松软地层钻进造斜率难保证、密集型井槽井眼碰撞的难题,限制了表层钻井的作业时效。为此,针对性地采取井槽防窜漏工艺、优化井眼预斜钻具组合、开展表层防碰设计及安全钻进参数控制,形成了适合该区域的丛式井表层Ф660.4 mm井段安全钻井关键技术。现场应用效果表明:①Ф660.4 mm井段钻井采用顺序“跳打”方式,在隔水导管内清淤,出隔水导管后实施钻进参数控制,并在固井时实施中间液附加量和排量控制,解决了表层大

【作者】

：

杨玉豪张万栋王成龙莫康荣程利民张雪菲

【机构】

：

中海石油（中国）有限公司湛江分公司

【出处】

：

天然气勘探与开发

【发表日期】

：

2021年2期

【关键词】

：

高温高压密集型丛式井表层窜漏防碰轨迹控制安全钻井

【基金项目】

：

中国海洋石油集团有限公司重大科技项目“南海西部油田上产2000万方关键技术研究”下属课题5“南海西部油田上产2000万方钻完井关键技术研究”(编号:CNOOC-KJ 135 ZDXM 38 ZJ 05 ZJ)。

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南海高温高压气田密集丛式井表层Ø660.4 mm井段安全钻井技术

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