[an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]
[an error occurred while processing this directive]

天然气勘探与开发 >

2024 , Vol. 47 >Issue 3: 111 - 117

DOI: https://doi.org/10.12055/gaskk.issn.1673-3177.2024.03.013

非常规油气

吉林油田页岩油水平井二开钻井关键技术及应用

  • 孙平涛 ,
  • 赵建忠 ,
  • 刘强
展开
  • 中国石油吉林油田公司钻井工艺研究院 吉林松原 138000
孙平涛,男,1982年生,高级工程师;主要从事钻井工程技术研究工作。地址：（138000）吉林省松原市宁江区长宁北街1546号钻井工艺研究院。E-mail：sunpingtao_0000@126.com

修回日期: 2024-03-15

  网络出版日期: 2024-06-27

收起

Key second-spud horizontal-well technologies for shale oil in Jilin oilfield and their application

  • SUN Pingtao ,
  • ZHAO Jianzhong ,
  • LIU Qiang
Expand
  • Drilling Technology Research Institute, PetroChina Jilin Oilfield Company, Songyuan, Jilin 138000, China

Revised date: 2024-03-15

  Online published: 2024-06-27

Fold

摘要

吉林油田页岩油主要位于松辽盆地南部长岭凹陷,已经完钻5口纯页岩水平井。由于目的层层理和裂缝发育,造成井壁稳定性差,在施工过程中,存在返砂效率低、井壁易坍塌、水平段延伸困难、摩阻扭矩大等技术难题。针对这些问题,通过井身结构优化、强封堵钻井液应用、高效PDC钻头及提速工具优选、井筒清洁参数优化及压力精确控制等技术攻关,形成页岩油二开长水平段水平井钻井关键技术。应用结果表明：①采用强抑制强封堵高性能油基钻井液能有效封堵裂缝,大幅降低钻井液侵入量,并有效防止页岩膨胀,提高井壁的化学稳定性;②钻井液排量大于38 L/s、顶驱转速大于80 r/min能够保持水平井井筒清洁,节约短起下钻及下套管前通井的时间3 d以上;③个性化PDC钻头配合旋导施工能大幅度提高机械钻速,使井壁浸泡时间缩短30%以上。优化起钻速度使井底压力波动降低52%,进一步提高井壁稳定性;④吉林油田页岩油水平井由三开井身结构简化为二开井身结构,水平段长度提高82.75%,机械钻速提高53.73%,钻井成本降低33%。

关键词： 井筒清洁; 页岩油; 二开井身结构; 提速; 井壁稳定

本文引用格式

孙平涛 , 赵建忠 , 刘强 . 吉林油田页岩油水平井二开钻井关键技术及应用[J]. 天然气勘探与开发, 2024 , 47(3) : 111 -117 . DOI: 10.12055/gaskk.issn.1673-3177.2024.03.013

Abstract

Shale oil in Jilin oilfield is mainly discovered in Changling sag, southern Songliao Basin where five pure shale horizontal wells have been drilled. However, both well-developed bedding and fractures bring about poor wellbore stability. Especially, there exist some drilling problems, such as low sand return rate, wellbore collapse, difficult horizontal extension, and large torque and drag. So, key second-spud horizontal-well technologies were created for shale oil by optimization of casing program, adoption of strong sealing drilling fluid, selection of efficient PDC bit or rate of penetration (ROP) enhancement tools, optimization of wellbore cleaning parameters, and precise control of pressure. After their application, it is shown that (i) the high-inhibition, high-plugging and high-performance oil-based drilling fluid can be used for plugging fractures with effect, reducing fluid influx greatly, avoiding shale expansion, and increasing chemical stability of wellbore; (ii) horizontal wellbore cleaning can be kept at the fluid discharge and top drive speed all greater than 38 L/s and 80 r/min, respectively, thus cutting down the drifting time before short trip or casing more than 3 d; (iii) individual PDC bit in conjunction with rotary steering can substantially raise the ROP and further shorten the wellbore soaking duration by more than 30%. Optimization of drilling speed can lowered the fluctuation of bottomhole pressure by 52%, further improving the wellbore stability; and (iv) the casing program is simplified to second spud from third spud, which enables horizontal intervals to be 82.75% longer, ROP to be 53.73% higher, and drilling costs to be 33% lower, respectively.

Key words： Wellbore cleaning; Shale oil; Second-spud casing program; ROP increase; Wellbore stability

[an error occurred while processing this directive]

参考文献

[1] 许涵越. 松辽盆地南部青山口组页岩油资源潜力评价[D]. 大庆: 东北石油大学, 2014.
XU Hanyue.Evaluation on shale oil resources in Qingshankou formation of the southern Songliao Basin[D]. Daqing: Northeast Petroleum University, 2014.
[2] 徐兴友, 刘卫彬, 白静, 等. 松辽盆地南部青山口组一段页岩油富集地质特征及资源潜力[J]. 地质与资源, 2021, 30(3): 296-305.
XU Xingyou, LIU Weibin, BAI Jing, et al.Enrichment characteristics and resource potential of shale oil in the first member of Qingshankou Formation in southern Songliao Basin[J]. Geology and Resources, 2021, 30(3): 296-305.
[3] 柳波, 孙嘉慧, 张永清, 等. 松辽盆地长岭凹陷白垩系青山口组一段页岩油储集空间类型与富集模式[J]. 石油勘探与开发, 2021, 48(3): 521-535.
LIU Bo, SUN Jiahui, ZHANG Yongqing, et al.Reservoir space and enrichment model of shale oil in the first member of Cretaceous Qingshankou Formation in the Changling Sag, southern Songliao Basin, NE China[J]. Petroleum Exploration and Development, 2021, 48(3): 521-535.
[4] 何文渊, 柳波, 张金友, 等. 松辽盆地古龙页岩油地质特征及关键科学问题探索[J]. 地球科学, 2023, 48(1): 49-62.
HE Wenyuan, LIU Bo, ZHANG Jinyou, et al.Geological characteristics and key scientific and technological problems of Gulong shale oil in Songliao Basin[J]. Earth Science, 2023, 48(1): 49-62.
[5] 何文渊, 蒙启安, 张金友. 松辽盆地古龙页岩油富集主控因素及分类评价[J]. 大庆石油地质与开发, 2021, 40(5): 1-12.
HE Wenyuan, MENG Qi’an, ZHANG Jinyou.Controlling factors and their classification-evaluation of Gulong shale oil enrichment in Songliao Basin[J]. Petroleum Geology & Oilfield Development in Daqing, 2021, 40(5): 1-12.
[6] 朱国文, 王小军, 张金友, 等. 松辽盆地陆相页岩油富集条件及勘探开发有利区[J]. 石油学报, 2023, 44(1): 110-124.
ZHU Guowen, WANG Xiaojun, ZHANG Jinyou, et al.Enrichment conditions and favorable zones for exploration and development of continental shale oil in Songliao Basin[J]. Acta Petrolei Sinica, 2023, 44(1): 110-124.
[7] 白斌, 戴朝成, 侯秀林, 等. 松辽盆地白垩系青山口组页岩层系非均质地质特征与页岩油甜点评价[J]. 石油与天然气地质, 2023, 44(4): 846-856.
BAI Bin, DAI Chaocheng, HOU Xiulin, et al.Geological heterogeneity of shale sequence and evaluation of shale oil sweet spots in the Qingshankou Formation, Songliao Basin[J]. Oil & Gas Geology, 2023, 44(4): 846-856.
[8] 张水昌, 张斌, 王晓梅, 等. 松辽盆地古龙页岩油富集机制与常规—非常规油有序分布[J]. 石油勘探与开发, 2023, 50(5): 911-923.
ZHANG Shuichang, ZHANG Bin, WANG Xiaomei, et al.Gulong shale oil enrichment mechanism and orderly distribution of conventional-unconventional oils in the Cretaceous Qingshankou Formation, Songliao Basin, NE China[J]. Petroleum Exploration and Development, 2023, 50(5): 911-923.
[9] 崔宝文, 张顺, 付秀丽, 等. 松辽盆地古龙页岩有机层序地层划分及影响因素[J]. 大庆石油地质与开发, 2021, 40(5): 13-28.
CUI Baowen, ZHANG Shun, FU Xiuli, et al.Organic sequence stratigraphic division and its influencing factors’ analyses for Gulong shale in Songliao Basin[J]. Petroleum Geology & Oilfield Development in Daqing, 2021, 40(5): 13-28.
[10] 邵红梅, 高波, 潘会芳, 等. 松辽盆地古龙页岩成岩—孔隙演化[J]. 大庆石油地质与开发, 2021, 40(5): 56-67.
SHAO Hongmei, GAO Bo, PAN Huifang, et al.Diagenesis-pore evolution for Gulong shale in Songliao Basin[J]. Petroleum Geology & Oilfield Development in Daqing, 2021, 40(5): 56-67.
[11] 史配铭, 李晓明, 倪华峰, 等. 苏里格气田水平井井身结构优化及钻井配套技术[J]. 石油钻探技术, 2021, 49(6): 29-36.
SHI Peiming, LI Xiaoming, NI Huafeng, et al.Casing Program optimization and drilling matching technologies for horizontal wells in Sulige Gas Field[J]. Petroleum Drilling Techniques, 2021, 49(6): 29-36.
[12] 邹灵战, 牟少敏, 耿明明, 等. 川西复杂地质井壁稳定及井身结构优化技术[J]. 重庆科技学院学报(自然科学版), 2022, 24(6): 1-7.
ZOU Lingzhan, MU Shaomin, GENG Mingming, et al.Borehole stability and well bore structure optimization technology for complex geological conditions in western Sichuan[J]. Journal of Chongqing University of Science and Technology (Natural Sciences Edition), 2022, 24(6): 1-7.
[13] 刘小康, 田智生. 页岩气井钻遇破碎地层的井身结构优化设计[J]. 探矿工程(岩土钻掘工程), 2016, 43(7): 89-91.
LIU Xiaokang, TIAN Zhisheng.Optimal design of casing program of shale gas drilling in broken formation[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2016, 43(7): 89-91.
[14] 步宏光, 唐世忠, 饶富培, 等. 大港油田井身结构优化研究与应用[J]. 石油钻采工艺, 2011, 33(4): 105-108.
BU Hongguang, TANG Shizhong, RAO Fupei, et al.Research and application of Dagang Oilfield casing program optimizatio[J]. Oil Drilling & Production Technology, 2011, 33(4): 105-108.
[15] 张春林, 古光平, 刘德平, 等. 四川盆地震旦系灯二段水平井段优快钻井技术——以高石123井为例[J]. 天然气勘探与开发, 2020, 43(2): 53-58.
Zhang Chunlin, Gu Guangping, Liu Deping, et al.Optimal fast drilling for horizontal interval in Sinian Dengying 2 Member, Sichuan Basin: An example from Gaoshi 123 well[J]. Natural Gas Exploration and Development, 2020, 43(2): 53-58.
[16] 陈国军. 伊拉克米桑油田裂缝性地层非标井眼水平井钻井技术[J]. 天然气勘探与开发, 2020, 43(2): 45-52.
CHEN Guojun.Horizontal-well drilling technologies with non-standard borehole for fractured formations, Missan oilfield, Iraq[J]. Natural Gas Exploration and Development, 2020, 43(2): 45-52.
[17] 王敏生, 光新军, 耿黎东. 页岩油高效开发钻井完井关键技术及发展方向[J]. 石油钻探技术, 2019, 47(5): 1-10.
WANG Minsheng, GUANG Xinjun, GENG Lidong.Key drilling/completion technologies and development trends in the efficient development of shale oil[J]. Petroleum Drilling Techniques, 2019, 47(5): 1-10.
[18] 路宗羽, 赵飞, 雷鸣, 等. 新疆玛湖油田砂砾岩致密油水平井钻井关键技术[J]. 石油钻探技术, 2019, 47(2): 9-14.
LU Zongyu, ZHAO Fei, LEI Ming, et al.Key technologies for drilling horizontal wells in glutenite tight oil reservoirs in the Mahu oilfield of Xinjiang[J]. Petroleum Drilling Techniques, 2019, 47(2): 9-14.
[19] 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.
[20] 杨灿, 董超, 饶开波, 等. 官东1701H页岩油长水平井激进式水力参数设计[J]. 西部探矿工程, 2019, 31(3): 24-26.
YANG Can, DONG Chao, RAO Kaibo, et al.Radical hydraulic parameter design for Guandong 1701H shale oil well with long horizontal interval[J]. West-China Exploration Engineering, 2019, 31(3): 24-26.
[21] 杨灿, 王鹏, 饶开波, 等. 大港油田页岩油水平井钻井关键技术[J]. 石油钻探技术, 2020, 48(2): 34-41.
YANG Can, WANG Peng, RAO Kaibo, et al.Key technologies for drilling horizontal shale oil wells in the Dagang oilfield[J]. Petroleum Drilling Techniques, 2020, 48(2): 34-41.
Options
文章导航

/

〈 〉

[an error occurred while processing this directive]