Deep precise fixed-point sampling and pressure measuring integrated method and device

• Main Authors: SHEN KAI, ZHANG ZHAOYI, LIU ZHENG, JIANG WANGANG, JIA QUANMIN, LIU WEN, TANG JIANPING, WANG BO, LI RIFU, JIA WENMING, LI LIANGWEI, GUO HENG, WANG YAZHOU, WANG ZHEN
• Format: Patent
• Language: Chinese; English
• Published: 08.09.2023
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; TESTING

The invention relates to a deep accurate fixed-point sampling and pressure measuring integrated device, and belongs to the field of coal seam gas, the deep accurate fixed-point sampling and pressure measuring integrated device comprises a drilling machine, a hollow drill rod with a hole and a hollow drill bit, and a detachable threaded sample feeder is arranged in the hollow drill rod with the hole; the threaded sample feeder is connected with the hollow drilling rod with the hole in a sliding manner; an output joint of the drilling machine is divided into an inner part and an outer part, the inside of the joint is connected with a threaded sample feeder, and the outside of the joint is connected with a hollow perforated drill rod; rotating speeds of inner and outer parts of the joint are different; the hollow drill bit and the hollow drilling rod with the holes are hollow, and hollow holes are formed in the drilling rod wall of the hollow drilling rod with the holes. 本发明涉及一种深部精准定点取样及测压一体化装置，属于煤层瓦斯领域，包括钻机、中空带