Key Technology for Drilling and Completion of Shale Gas Horizontal Wells with Ultra-Long Horizontal Sections in Changning Block
-
摘要: 为了解决长宁区块页岩气超长水平段水平井机械钻速低、钻井周期长和井下安全风险高等技术难点，通过理论分析和软件模拟计算，优化了井眼轨道，优选了钻井设备和套管下入方式，并制定了减振提速、防漏堵漏等降低和消减井下安全风险的技术措施，形成了长宁页岩气超长水平段水平井安全高效钻井完井关键技术。该技术在长宁区块3口超长水平段水平井进行了试验，3口井钻井和完井过程中均未发生井下故障，与未应用该技术的邻井相比，机械钻速提高了2.5%，钻井周期缩短了16.9%。这表明，该技术可以解决长宁区块页岩气超长水平段水平井钻井完井存在的技术难点，满足长宁区块安全高效钻井完井需求，可以在该区块进行推广。Abstract: In order to solve the technical difficulties such as low ROP, long drilling cycle and high downhole risks of shale gas horizontal wells with ultra-long horizontal section in the Changning Block, with theoretical analysis and software simulation calculations, the well trajectory was optimized, the proper drilling equipment and casing running methods were selected, and technical measures were taken to reduce downhole risks, such as introducing vibration reduction and acceleration, leak prevention and plugging. These technologies were developed to form a key technology for the safe and efficient drilling and completion of shale gas horizontal wells with ultra-long horizontal sections in Changning Block. The technology had been tested in 3 horizontal wells with ultra-long horizontal section in Changning Block, no downhole failure occurred during drilling and completion, while ROP was increased by 2.5% and drilling cycle was shortened by 16.9% compared with the offset wells. This showed that this technology could solve the challenges in drilling and completion of those shale gas horizontal wells with ultra-long horizontal section in Chang-ning Block, ensure the safe and efficient drilling and completion in Changning Block, and could be popularized in this block.
-
Keywords:
- shale gas /
- horizontal well /
- ultra-long horizontal section /
- penetration rate /
- drilling risk /
- Changning Block
-
-
![]()
图 1 长宁区块典型长水平段水平井扭矩模拟计算结果
Figure 1. Torque simulation calculation results of typical horizontal wells with long horizontal section in Changning Block
![]()
图 2 长宁区块典型长水平段水平井大钩载荷模拟计算 结果
Figure 2. Hook load simulation calculation results of typical horizontal wells with long horizontal section in Changning Block
![]()
图 3 长宁区块某页岩气水平井钻井过程中大钩载荷监控 曲线
Figure 3. Hook load monitoring curve during the drilling of a shale gas horizontal well in Changning Block
![]()
图 4 长宁某页岩气井下套管大钩载荷模拟计算结果
Figure 4. Hook load simulation calculation results of downhole casing of a shale gas well in Changning Block
表 1 长宁页岩气超长水平段水平井钻井完井关键技术试验 结果
Table 1 Test results of key technologies for drilling and completion of shale gas horizontal wells with ultra-long horizontal sections in Changning Block
井名 完钻井深/
m水平段长/
m钻井周期/d 钻井完井
周期/d机械钻速/
（m·h–1）宁A井 5 850.00 2 500.00 60.04 67.14 8.56 宁B井 5 950.00 2 500.00 59.17 71.19 8.04 宁C井 6 050.00 2 400.00 88.30 101.32 5.79 邻井① 5 586.00 2 556.00 96.21 115.00 7.05 注：①该行数据为未应用页岩气超长水平段水平钻井完井关键技术邻井的平均值。 
下载: 导出CSV
-
[1] 万夫磊. 长宁页岩气表层防漏治漏技术研究[J]. 钻采工艺, 2019, 42(4): 28–31. doi: 10.3969/J.ISSN.1006-768X.2019.04.08 WAN Fulei. Research on plugging technology for surface casing drlling of Changning shale gas[J]. Drilling & Production Technology, 2019, 42(4): 28–31. doi: 10.3969/J.ISSN.1006-768X.2019.04.08
[2] 樊好福,臧艳彬,张金成,等. 深层页岩气钻井技术难点与对策[J]. 钻采工艺, 2019, 42(3): 20–23. doi: 10.3969/J.ISSN.1006-768X.2019.03.06 FAN Haofu, ZANG Yanbin, ZHANG Jincheng, et al. Difficulties and countermeasures of deep shale gas drilling technology[J]. Drilling & Production Technology, 2019, 42(3): 20–23. doi: 10.3969/J.ISSN.1006-768X.2019.03.06
[3] 曾义金. 页岩气开发的地质与工程一体化技术[J]. 石油钻探技术, 2014, 42(1): 1–6. doi: 10.3969/j.issn.1001-0890.2014.01.001 ZENG Yijin. Integration technology of geology & engineering for shale gas development[J]. Petroleum Drilling Techniques, 2014, 42(1): 1–6. doi: 10.3969/j.issn.1001-0890.2014.01.001
[4] 许京国,陶瑞东,郑智冬,等. 牙轮–PDC混合钻头在迪北103井的应用试验[J]. 天然气工业, 2014, 34(10): 71–74. doi: 10.3787/j.issn.1000-0976.2014.10.010 XU Jingguo, TAO Ruidong, ZHENG Zhidong, et al. Pilot tests of a roller-PDC hybrid bit in Well Dibei 103, Tarim Basin[J]. Natural Gas Industry, 2014, 34(10): 71–74. doi: 10.3787/j.issn.1000-0976.2014.10.010
[5] 代锋,文永林,黄贵生,等. 空气锤+雾化钻井在低成本开发页岩气中的应用[J]. 石油钻采工艺, 2018, 40(5): 563–566. DAI Feng, WEN Yonglin, HUANG Guisheng, et al. Application of air hammer plus mist drilling in low cost development of shale gas[J]. Oil Drilling & Production Technology, 2018, 40(5): 563–566.
[6] 潘军,刘卫东,张金成. 涪陵页岩气田钻井工程技术进展与发展建议[J]. 石油钻探技术, 2018, 46(4): 9–15. PAN Jun, LIU Weidong, ZHANG Jincheng. Drilling technology progress and recommendations for the Fuling Shale Gas Field[J]. Petroleum Drilling Technioques, 2018, 46(4): 9–15.
[7] 徐良,孙友宏,高科,等. 针对须家河组岩性特征选择仿生金刚石钻头参数[J]. 石油钻探技术, 2008, 36(5): 43–46. XU Liang, SUN Youhong, GAO Ke, et al. Parameter selection of bionics diamond bit for lithology of Xujiahe Formation[J]. Petroleum Drilling Techniques, 2008, 36(5): 43–46.
[8] 牛新明. 涪陵页岩气田钻井技术难点及对策[J]. 石油钻探技术, 2014, 42(4): 1–6. NIU Xinming. Drilling technology challenges and resolutions in Fuling Shale Gas Field[J]. Petroleum Drilling Techniques, 2014, 42(4): 1–6.
[9] 冯强,陈世春,王建龙,等. 振动减摩阻工具振动参数及安放位置研究[J]. 石油钻探技术, 2018, 46(4): 78–83. FENG Qiang, CHEN Shichun, WANG Jianlong, et al. Research on vibration parameters and determining the position of a vibration friction reducing tool[J]. Petroleum Drilling Techniques, 2018, 46(4): 78–83.
[10] 王建龙,张展豪,冯强,等. 水力振荡器与液力推力器集成应用研究[J]. 石油机械, 2017, 45(4): 44–47. WANG Jianlong, ZHANG Zhanhao, FENG Qiang, et al. Study on the integrated application of hydraulic oscillatorand hydraulic thruster[J]. China Petroleum Machinery, 2017, 45(4): 44–47.
[11] 王建龙,齐昌利,柳鹤,等. 沧东凹陷致密油气藏水平井钻井关键技术[J]. 石油钻探技术, 2019, 47(5): 11–16. WANG Jianlong, QI Changli, LIU He, et al. Key technologies for drilling horizontal wells in tight oil and gas reservoirs in the Cangdong Sag[J]. Petroleum Drilling Techniques, 2019, 47(5): 11–16.
-
期刊类型引用(6)
1. 李朋，张艳玉，孙晓飞，李冬冬，刘洋，陈会娟. SAGD循环预热割缝筛管参数影响规律研究. 工程热物理学报. 2020(04): 940-947 . 
百度学术
2. 薛衡，黄祖熹，王贺华，安永生，刘榧，成一，何冰，刘卡. Ahdeb油田水平井控水完井及一体化耦合模型. 石油与天然气地质. 2019(02): 423-429 . 百度学术
3. 李朋，张艳玉，孙晓飞，陈会娟，刘洋. 稠油油藏双管水平井注汽井筒参数预测新模型. 特种油气藏. 2019(04): 85-90 . 百度学术
4. 李朋，张艳玉，孙晓飞，刘洋，谢孟珂，王朝，陈会娟. SAGD循环预热注汽参数影响规律数值模拟. 中南大学学报(自然科学版). 2019(11): 2896-2905 . 百度学术
5. 陈会娟，李明忠，狄勤丰，刘春苗. 多点注汽水平井井筒出流规律数值模拟. 石油学报. 2017(06): 696-704 . 百度学术
6. 徐磊. 稠油热采井防砂筛管热稳定性优化仿真分析. 北京石油化工学院学报. 2016(02): 40-45 . 百度学术
其他类型引用(5)
计量
- 文章访问数: 1059
- HTML全文浏览量: 329
- PDF下载量: 301
- 被引次数: 11
