海南福山凹陷花东1R井干热岩钻井关键技术

叶顺友; 杨灿; 王海斌; 崔广亮; 赵峰; 董洪铎

doi:10.11911/syztjs.2019030

海南福山凹陷花东1R井干热岩钻井关键技术

中国石油集团渤海钻探工程有限公司第一钻井工程分公司，天津 300280

详细信息

作者简介:
叶顺友（1983—），男，天津人，2008年毕业于西南石油大学石油工程专业，工程师，主要从事石油钻井技术管理工作。E-mail：yangcan@cnpc.com.cn

中图分类号: TK52
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出版历程
- 收稿日期: 2019-01-17
- 修回日期: 2019-03-06
- 网络出版日期: 2019-07-21
- 刊出日期: 2019-06-30

Key Drilling Technologies for Hot Dry Rock in Well HD-1R in the Hainan Fushan Sag

The No.1 Drilling Engineering Company, CNPC Bohai Drilling Engineering Co. Ltd., Tianjin, 300280, China

摘要

摘要:
为探索海南岛福山凹陷古近系流沙港组流三段、长流组热储情况，在花场区块部署了第一口干热岩探井花东1R井，该井钻探中存在下部地层可钻性差且井眼轨迹控制难度大、深层取心收获率难以保障、地层温度高影响钻井液性能稳定与固井质量等一系列问题。为保证花东1R井顺利完钻，在分析该地域地质构造与岩性特征的基础上，采用牙轮钻头+螺杆的钻具组合及抗高温井下测量仪器，钻进定向井段；根据取心井段地层特点，优选取心工具和优化取心钻井参数，提高取心收获率；采用抗高温钾盐聚合物钻井液解决钻井液在高温环境下性能稳定性差的问题；采用抗高温双凝水泥浆和采取针对性的技术措施，保证高温环境下的固井质量。花东1R井实钻过程中应用上述技术措施，克服了由地层可钻性差和地层温度高引发的钻井技术难点，顺利完成钻井施工，为海南岛干热岩钻探提供了借鉴。
- 干热岩 /
- 钻井设计 /
- 牙轮钻头 /
- 聚合物钻井液 /
- 固井 /
- 海南岛 /
- 福山凹陷 /
- 花东1R井
Abstract:
In order to explore the onshore thermal reservoir of the third member of Liushagang Formation and Changliu Formation in Paleogene Fushan Sag, Hainan Island, the first hot dry rock exploration well, Well HD-1R, was deployed in Huachang Block. A series of drilling problems occurred, including poor drillability of lower formation, difficulty in wellbore trajectory control, unpredictable coring recovery in deep formation, high formation temperature which affected drilling fluid stability and cementing quality, etc. In order to ensure the successful completion of Well HD-1R, the geological structure and lithological and physical characteristics of the area were analyzed, and then the BHA of the roller bit+ (Positive Displacement Motor)PDM and the high temperature-resistance downhole measurement instrument were applied to control the directional drilling trajectory. Based on the formation characteristics of coring section, optimized coring tools and drilling parameters were used to improve the core recovery rate. Then, high temperature potassium salt polymer drilling fluid was used to solve the problem of poor drilling fluid stability at high temperature, and a high temperature resistant double cementing slurry was adopted and targeted technical measures were taken to ensure cementing quality under high temperature environment. With the application of the above technical measures, the challenges caused by poor drillability of the formation and high formation temperature were overcome smoothly, thus ensuring the successful drilling of Well HD-1R. The successful completion of this well provided references and best practices for hot dry rock drilling in Hainan Island.
- dry hot rock /
- drilling design /
- roller bit /
- polymer drilling fluid /
- cementing /
- Hainan Island /
- Fushan Sag /
- Well HD-1R

HTML全文

图 1 花东1R井不同垂深处温度预测结果

Figure 1. Predicted temperatures of various TVD in Well HD-1R

下载: 全尺寸图片幻灯片

图 2 花东1R井井眼轨迹剖面

Figure 2. Trajectory profile of Well HD-1R

下载: 全尺寸图片幻灯片

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