李宁, 周小君, 周波, 杨成新, 白登相, 何世明. 塔里木油田HLHT区块超深井钻井提速配套技术[J]. 石油钻探技术, 2017, 45(2): 10-14. DOI: 10.11911/syztjs.201702002
引用本文: 李宁, 周小君, 周波, 杨成新, 白登相, 何世明. 塔里木油田HLHT区块超深井钻井提速配套技术[J]. 石油钻探技术, 2017, 45(2): 10-14. DOI: 10.11911/syztjs.201702002
LI Ning, ZHOU Xiaojun, ZHOU Bo, YANG Chengxin, BAI Dengxiang, HE Shiming. Technologies for Fast Drilling Ultra-Deep Wells in the HLHT Block, Tarim Oilfield[J]. Petroleum Drilling Techniques, 2017, 45(2): 10-14. DOI: 10.11911/syztjs.201702002
Citation: LI Ning, ZHOU Xiaojun, ZHOU Bo, YANG Chengxin, BAI Dengxiang, HE Shiming. Technologies for Fast Drilling Ultra-Deep Wells in the HLHT Block, Tarim Oilfield[J]. Petroleum Drilling Techniques, 2017, 45(2): 10-14. DOI: 10.11911/syztjs.201702002

塔里木油田HLHT区块超深井钻井提速配套技术

Technologies for Fast Drilling Ultra-Deep Wells in the HLHT Block, Tarim Oilfield

  • 摘要: 塔里木油田HLHT区块储层埋藏深、上部地层松软和下部地层岩石可钻性差,导致出现机械钻速低、钻井周期长等问题,在将井身结构优化为塔标Ⅲ三开井身结构的基础上,把提速重点聚集于二开井段,通过分析地层的可钻性,优选钻头及配套提速工具,并结合钻井实践经验,制定了二开钻井提速技术方案:二叠系以上地层,采用长寿命大扭矩螺杆/国产高效螺杆+ STS915K型或MS1952SS型高效PDC钻头复合钻井提速技术;二叠系及其以下地层,采用Torkbuster扭力冲击器+U513M型或U613M型专用PDC钻头钻井提速技术。现场应用表明,HLHT区块超深井应用钻井提速配套技术后,平均机械钻速逐年提高,从5.55 m/h逐渐提高至8.82 m/h,平均钻井周期逐年缩短,从131.0 d逐渐缩短至86.1 d。这表明,HLHT区块超深井钻井提速配套技术提速效果显著,能够满足该区块超深井快速高效安全钻井的需要。

     

    Abstract: Reservoirs in the HLHT Block, Tarim Oilfield contain soft formations in upper parts and rocks with poor drilling performances in lower parts. Consequently, these formations are characterized by a low rate of penetration (ROP) and longer time required for drilling operations. With the original casing program optimized to casing program with three intervals up to requirements specified in Standard III of the Tarim Oilfield, research has been conducted to accelerate the ROP in the second interval. By analyzing the drilling performance of relevant formations, selecting optimal bits and other drilling tools, and with consideration to available data, technical programs for EOP acceleration in the second interval were developed: PDM with long service time and high torque/domestically produced high-efficiency PDM+Model STS915K or Model MS1952SS high-efficiency PDC bits could be used to enhance ROPs in formations above the Permian; Torkbuster torsion impinger+Model U513M or Model U613M designated PDC bits could be used to enhance ROPs in the Permian and formations below. On-site application results showed that the application of relevant technologies to enhance ROPs in ultra-deep wells of the HLHT Block could effectively enhance ROPs from 5.55 m/h to 8.82 m/h while the average required drilling time decreased from 131.0 d to 86.1 d. Relevant research results showed that the technologies to enhance ROPs in ultra-deep wells of the HLHT Block had outstanding performances and could effectively satisfy demands related to safe and fast drilling of ultra-deep wells in the target block.

     

/

返回文章
返回