西湖凹陷上部杂色泥岩井壁失稳研究和钻井液优化OA北大核心CSTPCD
Researching the Borehole Instability of Upper Variegated Mudstone Strata and Optimizing Drilling Fluid in Xihu Sag
东海西湖凹陷部分区块在Φ311.15 mm井段钻遇龙井组、花港组杂色泥岩地层时,频繁发生起下钻阻卡、倒划眼困难等复杂情况,严重影响井下安全和作业时效.室内采用X射线衍射、扫描电镜、压汞法、抗压强度测试等方法对地层岩性组构特征、力学特性以及其他物理化学性能进行试验,研究井壁岩石失稳机理,表明杂色泥岩本身极具失稳特性.模拟现场条件,试验研究现场油基钻井液封堵和井壁稳定能力、钻井液润湿性能对岩屑井壁黏附和润滑性的影响,发现影响杂色泥岩起下钻遇阻的主控因…查看全部>>
The drilling complication of trip block or backreaming difficulty is occurred frequently when the variegated mudstone stratas of Longjing Formation&Huagang Formation are drilled at Φ311.15mm interval in Xihu Sag of the East China Sea Basin.The lithological fabric characteristics,mechanical properties,physical chemistry are researched by X-ray diffraction,scan with electric mirror,Mercury intrusion porosimetry,compressive strength test.It is indicated tha…查看全部>>
张海山
中海石油(中国)有限公司上海分公司,上海 200335
石油、天然气工程
泥岩地层井壁稳定胶结封堵井壁强化油基钻井液
Mudstone formationWellbore stabilityGlueing and sealingStrengthening wellboreOil-based drilling fluid
《钻井液与完井液》 2024 (2)
205-214,10
中国海洋石油集团有限公司"七年行动计划"科技专项"快速评价建产关键技术应用研究"(CNOOC-KJ135ZDXM39SH04).
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