完整的论文描述了欠平衡连续油管钻井 (UBCTD) 技术在致密砂岩中的应用，采用了结合了岩石物理、地球物理和油藏工程数据的综合方法。主要目标是区分高基质渗透率和天然裂缝，重点关注局部高渗透率区域，在实施 UBCTD 操作之前进行详细分析。综合方法检查各种数据集，包括测井数据、生产测井工具（PLT）结果、地震解释、井产率和压力瞬态分析（PTA）。
任何一口井的成功在很大程度上取决于战略布局，这是 UBCTD 背景下放大的一个关键因素。在 UBCTD 中错位井可能会对生产力和可分割性产生灾难性后果。虽然目标区域具有高流量 ( kh ) 是可取的，但避开不稳定区域和容易蠕变的材料也同样重要。
The complete paper describes the use of underbalanced coiled tubing drilling (UBCTD) technology in tight sandstones, using an integrative approach that incorporates petrophysical, geophysical, and reservoir engineering data. The primary objective is to distinguish between high matrix permeability and natural fractures, focusing on a localized high-permeability region subject to detailed analysis before implementing a UBCTD operation. The integrative methodology examines various data sets, including log data, production-logging-tool (PLT) results, seismic interpretation, well rates, and pressure transient analysis (PTA).
The success of any well is heavily contingent on strategic placement, a critical factor magnified in the context of UBCTD. Misplacing a well in UBCTD can have catastrophic consequences for productivity and severability. While targeting areas of high flow capacity (kh) is desirable, steering clear of unstable zones and materials prone to creep is equally crucial.
