As the US crude oil inventories fell for 5 consecutive weeks, the US tax reform bill passed, and the US dollar continued to weaken, factors such as international oil prices resumed their upward trend. The price of refined oil in individual regions in China is also facing upward adjustment. December 21st, Zhongyu Information monitored the domestic average price of PetroChina and Sinopec in 30 major provinces, regions and cities: Puchai price was RMB 6,820/ton, which was RMB 16/ton lower than the previous working day and RMB 673 lower than the average retail sales price. /Ton. The price of Guo Wu No.92 gasoline was RMB 7,331/t, which was RMB 5/t lower than the previous working day. The price of China's No. 50 diesel was RMB 6862/t, which was RMB 14/t lower than the previous working day; gasoline and diesel were respectively Compared with retail sales, the average price was 1635 yuan/ton and 588 yuan/ton. According to the Jinlianchuang monitoring system, the current operating rate of Shandong Refining is nearly 70%, and historical records are constantly being updated. Although the refining market oil market continued to weaken, and the basic exhaustion of refinery quotas also restricts some of the crude oil trade, but the local refining and more fully stocked raw materials at the same time the overall refining profit is still acceptable, and the refinery construction has remained strong. Drilling tool assembly (P, H, N and B) Core Barrel&Overshot,Core Barrel Overshot,Core Barrel For Geological,Core Barrel Of Diamond Core Driller JIANGSU XI TEC ENVIRONMENTAL&DRILLING EQUIPMENT COMPANY CO.LTD , https://www.nbxitecdrilling.com
Relevant description of products:
Retrieve the inner tube with an overshot without lifting out the whole rods string to obtain the core, the wireline coring system lifts the underground core sample out of the borehole through the overshot to take back the entire inner tube and conduct sampling analysis. This improves productivity of the work site and guarantees safety of core sample during drilling down.
The system is realized through a fully independent inner tube. During its working, the inner tube does not connect with the overshot but locates at the bottom of the coring Drilling Rod directly (behind the coring drilling bit). An assembly device is installed on top of the inner tube, which includes coring and recycling functions. When the inner tube is full of core sample, the overshot is placed to the bottom from the borehole through a steel wire rope and lifted out by a winch. After the inner tube assembly is lifted to the surface, an empty inner tube is placed to the bottom of the hole to recover the drilling. This improves well drilling efficiency.
Our company provides core barrel assmeblies of different diameters to meet customers' demands. The wireline coring system is applicable for most drilling conditions and standard DCDMA hole sizes (B, N, H and P).
Currently, the company provides two models of wireline coring systems: double-tube and triple-tube
Core barrel assembly: It consists of inner tube and outer tube groups.
The inner part consists of the following parts: spearhead assemly, retrival components, core sample collection component, landing shoulder, stop ring and other parts.inner tube group, independent from outer tube group, collects core sample sample during well drilling.
The outer tube part consists of parts , which includes locking coupling, adapter coupling, outer tube, etc. The outer tube group that is kept at the bottom of the hole all the time holds the inner tube assembly during drilling.
The triple tube coring system AU3 has the same components as the dual-tube. And its interior has a third tube that is known as liner tube of the inner tube.
Liner tube of the inner tube is placed in the inner tube. The triple tube system can realize overall recovery ratio of core sample when drilling stratum with coal, clay or bigger crack. The liner tube or split tube keeps the core sample at its receiving status to collect or load and store easily.
Only N, H and P sizes are available for the triple tube coring system.