硼-中子寿命测井施工工艺优化技术

TECHNOLOGY OF OPTIMIZING CONSTRUCTION TECHNICS FOR BORIDE-NEUTRON LIFETIME LOGGING

张雪芹 高庆云 王青川 杨红

Zhang Xueqin Gao Qingyun Wang Qingchuan Yang Hong

华北石油管理局, 河北任丘 062552 华北油田公司, 河北任丘 062552

硼-中子寿命测井是中子寿命测井在工艺上的最新改进与发展,通过测取地层受硼前后俘获截面曲线的变化来直观确定地层可动水含量,划分水淹级别。根据不同井况、地层合理注硼,优化注测方案,是确保资料录取质量的前提,也是硼-中子测井施工工艺技术的核心与难点。介绍了施工选井、工艺参数优选、复杂井况下多级测注方案配置的基本原则、方法与实际经验,为该项技术的工艺优化提供了思路,指明了方向。

Boride-neutron life time logging technology is the one improved and developing in construction techniques on the foundation of neutron life time logging technology, determining the ratio of movable water in formation and classifying its water flooding status by logging the change of capture section curves due to boride injection and absorption. Reasonable boride injection and optimization for logging-and-injection scheme, fit for various types of wells and layers, is the precondition to guarantee high quality of logging data, also the core and difficult techniques of construction. These are stated as emphases on the basis of related theory on seepage flow mechanics and construction practice, essential principles, methods, and experiences in practice of well selecting, construction parameters optimizing, and multiple logging-and-injection scheme under complex well conditions. Thus, thoughtway and direction of optimizing the construction technique is provided.

10.3969/j.issn.1000-7393.2002.01.022