CAJ | 학술논문

煤层气参数井因需准确获取煤层及其气体含量参数,绳索取心技术因结构简单、钻进效率高、岩矿心质量好、钻获煤心时间短等显著优点已在煤层气井取心中广泛应用.主要介绍了大口径绳索取心钻具在鹤壁六矿某煤层气参数井+生产井的应用中,根据选用大口径取心工具的结构特点,针对目的煤层为特厚软煤的客观地质条件,总结出了较为合理的取心钻进工艺参数和技术保障措施,取得了较好的效果.
매층기삼수정인수준학획취매층급기기체함량삼수,승색취심기술인결구간단、찬진효솔고、암광심질량호、찬획매심시간단등현저우점이재매층기정취심중엄범응용.주요개소료대구경승색취심찬구재학벽륙광모매층기삼수정+생산정적응용중,근거선용대구경취심공구적결구특점,침대목적매층위특후연매적객관지질조건,총결출료교위합리적취심찬진공예삼수화기술보장조시,취득료교호적효과.
The accurate parameters of coal seam information and the gas content are obtained in CBM parameter well. Wire-line coring technology has been widely used in CBM well coring because of its simple structure, high drilling efficien-cy, good coring sample quality and short coring time.This paper mainly introduced the successful application of large-diam-eter wire-line coring barrel in a CBM parameter well and production well of Hebi.Based on the structure features of the se-lected coring tool and according to the thick soft coal seam conditions, the reasonable drilling parameters and technical in-surance measures were summed up with good effects.