CAJ | 학술논문

2013ZX－SH－UM15V井位于山西沁水盆地腹部，为一口煤层气生产直井，在施工过程中需要对3号煤层、15号煤层取心，以了解其煤层含气量、煤岩特性等相关参数。在3号煤层、15号煤层取心过程中，因其煤层中下部煤质较松软，岩心采取率一度很低。结合3号煤层、15号煤层的煤岩特性及绳索取心钻井工艺的特点，通过反复的试验，最终成功完成了3号、15号煤层的取心工作，其中15号煤层岩心采取率达90％以上。总结了针对该区域的松软煤层的绳索取心施工关键技术。
2013ZX－SH－UM15V정위우산서심수분지복부，위일구매층기생산직정，재시공과정중수요대3호매층、15호매층취심，이료해기매층함기량、매암특성등상관삼수。재3호매층、15호매층취심과정중，인기매층중하부매질교송연，암심채취솔일도흔저。결합3호매층、15호매층적매암특성급승색취심찬정공예적특점，통과반복적시험，최종성공완성료3호、15호매층적취심공작，기중15호매층암심채취솔체90％이상。총결료침대해구역적송연매층적승색취심시공관건기술。
As a CBM production well, 2013ZX-SH-UM15V is located in Qinshui basin in Shanxi Province.Coal-bed co-ring was conducted in 3#and 15#coal-beds during the construction in order to obtain the coal-bed gas content and coal rock characteristics and some other parameters.Because of the soft coal in lower parts of 3#and 15#coal-beds, the core recovery was once very low, but combined with the coal rock characteristics in 3#and 15#coal-beds and by the repeated tests, core re-covery was up to more than 90%.The paper summarizes the key technology of wire-line coring in soft coal-bed in this region.