吉林油田泉头组抗钻特性与钻头适应性评价  

Evaluation of anti-drilling characteristic and bit adaptability of Quantou formation in Jilin Oilfield

作　　者：张立春 王昶皓 李传均[1] 青川 李士斌[2] ZHANG Lichun;WANG Changhao;LI Chuanjun;QIQNG Chuan;LI Shibin(Drilling Technology Research Institute,Jilin Oilfield Company,PetroChina,Songyuan,Jilin 138000,China;Northeast Petroleum University,Daqing,Heilongjiang 163318,China)

机构地区：[1]中国石油吉林油田公司钻井工艺研究院,吉林松原138000 [2]东北石油大学,黑龙江大庆163318

出　　处：《石油地质与工程》2022年第4期102-108,共7页Petroleum Geology and Engineering

基　　金：黑龙江省博士后面上资助“PDC钻头磨损与钻井液润滑机理研究”(LBH-Z20120);国家自然科学基金项目“地层岩石对钻头磨损机理及研磨性评价标准研究”(5187041838)。

摘　　要：吉林油田泉头组地层岩性复杂,钻头吃入困难。为此,开展岩心抗钻特性测试,结果表明,地层岩石脆性矿物含量高,软硬交错,中硬岩石多且非均质性较强,钻头出现打滑是导致机械钻速低的主要地层因素。结合测井数据建立了全井段的抗钻特性剖面,利用虚拟强度指数法对区块实际使用钻头进行了评价,提出了钻头优选序列并进行了优化设计。优化后的钻头机械钻速提高了34.85%,提速效果明显。The lithology of the Quantou formation in Jilin Oilfield is complex,which makes it difficult to drive the bit.Therefore,the core anti-drilling characteristics test is carried out.The results show that the formation rocks have high content of brittle minerals,alternating hard and soft,with many medium hard rocks and strong heterogeneity,and the bit slippage is the main formation factor leading to low ROP.Combined with the logging data,the anti-drilling characteristic profile of the whole well section is established,the actual bit in the block is evaluated by using the virtual strength index method,the bit optimization sequence is put forward and the optimization design is carried out.The optimized drill bit's ROP has increased by 34.85%,and the speed-up effect is obvious.

关 键 词：吉林油田 抗钻特性 钻头选型 虚拟强度指数 机械钻速 硬脆性地层 

分 类 号：TE242[石油与天然气工程—油气井工程]