油砂SAGD水平井钻井液体系

巩永丰

doi:10.3969/j.issn.1001-5620.2018.05.014

油砂SAGD水平井钻井液体系

doi: 10.3969/j.issn.1001-5620.2018.05.014

巩永丰

辽河油田公司钻采工程处, 辽宁盘锦 124010

基金项目:

国家科技重大专项“深井超深井优质钻井液与固井完井技术研究”（2016ZX05020-004）与中石油集团公司重大专项“油砂SAGD钻完井技术集成研究”（2013D-4509）联合资助。

详细信息

作者简介:
巩永丰,高级工程师,1972年生,1996年毕业于江汉石油学院钻井工程专业,主要从事钻井液技术和钻井工程管理工作。电话(0427)7298917;E-mail:gongyf@petrochina.com.cn。

中图分类号: TE254.3
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出版历程
- 收稿日期: 2018-07-13
- 刊出日期: 2018-09-30

Drilling Fluid Formulation for Oil Sand SAGD Horizontal Wells

GONG Yongfeng

Department of Drilling and Production Engineering, Liaohe Oilfeld, Panjin, Liaoning 124010

摘要

摘要: 针对SAGD水平井在油砂开发过程中井壁失稳、托压易黏附卡钻及沥青沾染钻具和固控设备等难题，室内通过核心处理剂的优选，研发了一套强抑制高润滑水基钻井液体系。室内性能评价表明，该钻井液抗温180℃，抗沥青20%，抗钻屑25%，岩屑滚动回收率为91.7%，润滑性能与油基钻井液基本相当。强抑制高润滑水基钻井液在麦凯河区块5对（10口） SAGD水平井施工过程中性能稳定易调整，润滑效果突出，机械钻速高，无任何复杂事故。结果表明，强抑制高润滑水基钻井液完全满足浅层油砂SAGD水平井施工工艺的技术需求，具有推广应用价值。
- 油砂 /
- 蒸汽辅助重力泄油 /
- 抑制高润滑水基钻井液 /
- 麦凯河区块
Abstract: Wellbore instability, inability to exert weight-on-bit and adhesion of asphalt on drilling tools and solid control equipments are diffcult problems associated with SAGD (steam-assisted gravity drainage) horizontal drilling. A water base drilling fluid with high inhibitive capacity and good lubricity has been formulated, based on additive selection through laboratory experiment, to resolve these diffcult problems. This drilling fluid in laboratory experiment showed good properties, such as high temperature resistance (180℃), resistance to contamination caused by 20% asphalt and by 25% drilled cuttings, and percent cuttings recovery of 91.7% in hot rolling test. The lubricity of the drilling fluid is equivalent to that of oil base mud. This drilling fluid was used on 10 SAGD horizontal wells in Block Maikaihe, showing stable and easy-to-control properties, and good lubricity. High ROP was obtained with the use of the formulation. Ho downhole troubles have ever been encountered during drilling. This water base drilling fluid of strong inhibitive capacity and good lubricity fully satisfed the needs of shallow oil sand SAGD horizontal well drilling, and is worth spreading.
- Oil sand /
- SAGD /
- Steam-assisted gravity drainage /
- Water base drilling fluid with high inhibitive capacity and good lubricity

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