如何提高钻井密闭取芯质量

How to Improve Quality of Drilling Coring

钻井密闭取芯的关键在于如何保障取芯的密闭率和收获率。从取芯的工具选择、操作的过程以及密闭性能的提高和地层层位的确定等方面入手,阐述了如何提高钻井密闭取芯质量。指出,钻井密闭取芯的质和量主要取决于取芯过程中各相关单位的协作配合,以建井安全优质为基础,通过合理选用取芯工具、卡准层位、合理取芯操作、在技术和管理上保障钻井密闭取芯的收获率和密闭率。

The key of drilling coring is how to ensure the acquisition ratio and the sealing acquisition ratio of cores. It is expounded how to improve drilling coring quality from the selection of coring tools, the operation of coring process, the improvement of coring sealing and the determination of coring stratigraphic position. It is pointed out that the quality and quantity of drilling coring is mainly deter- mined by the cooperation of the relevant units in the coring process. Based on the safety and high quality of well construction, the acqui- sition ratio and the sealing acquisition ratio of cores are ensured by the reasonable selection of coring tools, the accurate determination of coring stratigraphic horizon, the reasonable coring operation, and so on.