准噶尔南缘深井机械比能分析与钻井参数优化

doi:10.11885/j.issn.16745086.2021.04.29.11

西南石油大学学报(自然科学版) ›› 2021, Vol. 43 ›› Issue (4): 51-61.DOI: 10.11885/j.issn.16745086.2021.04.29.11

• 深层和非常规油气钻完井专刊 • 上一篇下一篇

准噶尔南缘深井机械比能分析与钻井参数优化

路宗羽, 徐生江, 蒋振新, 田龙, 钟尹明

中国石油新疆油田分公司工程技术研究院, 新疆克拉玛依 834002

收稿日期:2021-04-29 发布日期:2021-08-06
通讯作者: 徐生江,E-mail:xusj@petrochina.com.cn
作者简介:路宗羽,1983年生,男,汉族,吉林磐石人,高级工程师,硕士,主要从事钻井工程技术研究与管理工作。E-mail:luzy@petrochina.com.cn
徐生江,1982年生,男,汉族,新疆木垒人,高级工程师,硕士,主要从事钻井工程技术研究。E-mail:xusj@petrochina.com.cn
蒋振新,1988年生,男,汉族,湖北荆州人,工程师,硕士,主要从事钻井工程技术研究。E-mail:jiangzhenxin@petrochina.com.cn
田龙,1991年生,男,汉族,黑龙江大庆人,工程师,硕士,主要从事钻井工程技术研究。E-mail:tlindq@126.com
钟尹明,1994年生,男,汉族,四川简阳人,助理工程师,硕士,主要从事钻井工程技术研究。E-mail:1445309969@qq.com
基金资助:
中国石油天然气集团有限公司重大技术现场试验项目（2019F-33）

Mechanical Specific Energy Analysis and Optimization of Drilling Parameters for Nanyuan Deep Formations in Junggar Basin

LU Zongyu, XU Shengjiang, JIANG Zhenxin, TIAN Long, ZHONG Yinming

Research Institute of Engineering Technology, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834002, China

Received:2021-04-29 Published:2021-08-06

摘要/Abstract

摘要： 准噶尔盆地南缘深部地层具有埋藏深、岩石抗压强度高、可钻性差等特点，导致复杂情况多、钻井周期长，单井平均钻井周期335 d，深部地层平均机械钻速在2 m/h以下，提高机械钻速是南缘深部地层钻井的迫切需求和巨大挑战。针对南缘深部地层复杂条件，建立井口载荷与钻头载荷之间的关系，分析螺杆钻具输出特性，推导复合钻井机械比能模型。以HT1井五开ϕ190.5 mm井段实钻数据为基础，针对不同地层分析南缘深部地层机械比能与机械钻速之间的关系，优选钻井方式，确定合理的钻井参数范围。机械比能分析表明，连木沁组对转速不敏感，推荐采用常规钻井方式并适当增加钻压；胜金口组和呼图壁河组推荐采用复合钻井，适当提高钻压；清水河组和喀拉扎组扭冲提速效果不明显，建议尝试新型提速工具，考虑尝试高钻压、适当转速的参数组合。研究结果可为后续南缘深部地层提高钻速提供参考。

关键词: 机械比能, 深部地层, 螺杆钻具, 参数优选, 复合钻井s

Abstract: The deep formations in Nanyuan Area of Junggar Basin are characterized by large burial depth, high compressive strength of rock, poor drillability, and strong hold-down effect from drilling mud, which result in frequent drilling accidents and extended drilling cycle (average drilling period 335 d for single well). The average rate of penetration in deep formations are below 2 m/h. It is of urgent necessity and massive challenge to improve ROP in drilling the Nanyuan deep Formations. Aiming at the complicated conditions in Nanyuan deep Formations, a relationship between the load at wellhead and the load on bit is established, and the output characteristics of positive displacement motor is analyzed. Then the Mechanical Specific Energy (MSE) model for the compound drilling method is derived. Based on the drilling data of the ϕ190.5 mm section in the Hutan No.1 Well, focusing on various geological formations, analyze the relationship between MSE and ROP in Nanyuan deep Formations, which is helpful for optimizing drilling method and locating proper ranges of drilling parameters. According to the MSE analysis, ROP in Lianmuqing Formation is bot sensitive to rpm (rotation per minute), where conventional drilling method with improved WOB (weight on bit) is recommended. Compound drilling method with a properly increased WOB is suggested in Shenjinkou and Hutubihe formations. The improvement of ROP is not obvious in Qingshuihe and Kalazha formations when torsional impactor is used. Thus are novel tools suggested to boost ROP and consider the parametric combination of high WOB and moderate RPM. The research results are expected to provide reference for enhanceing penetration rate in Nanyuan deep formation.

Key words: mechanical specific energy, deep formation, positive displacement motor, parameter optimization, compound drilling

中图分类号:

TE245

路宗羽, 徐生江, 蒋振新, 田龙, 钟尹明. 准噶尔南缘深井机械比能分析与钻井参数优化[J]. 西南石油大学学报(自然科学版), 2021, 43(4): 51-61.

LU Zongyu, XU Shengjiang, JIANG Zhenxin, TIAN Long, ZHONG Yinming. Mechanical Specific Energy Analysis and Optimization of Drilling Parameters for Nanyuan Deep Formations in Junggar Basin[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2021, 43(4): 51-61.

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准噶尔南缘深井机械比能分析与钻井参数优化

Mechanical Specific Energy Analysis and Optimization of Drilling Parameters for Nanyuan Deep Formations in Junggar Basin

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