Recently, news from PetroChina, its first shale gas factory pilot test was successful. For the first time, PetroChina applied zipper fracturing technology to perform zipper fracturing on the H3-1 and H3-2 wells of Changning H3 platform. From 7:00 on December 6 to 21:00 on the 13th, the sand pressure of the two wells was completed. Cracking, the average daily fracture of 3.16 segments, the highest one day fracturing 4 segments, the construction efficiency doubled compared with the traditional technology, greatly improving the fracturing aging.
After the shale gas development has passed the gas export, the face is how to achieve effective economic scale development. If traditional fracturing technology is used to fracture up to 2 segments per day, it takes a long time and costs, which is not conducive to large-scale development. Based on the development technology of shale gas in North America, Chuanqing Drilling has initially formed a set design through the practice of 32 wells and 182 layers/segmental fracturing in Weiyuan Changning, Fushun Yongchuan, Zhaotong and Fuling shale gas zones. , shale gas reservoir transformation technology integrated with materials, construction support and post-evaluation. This fracturing is a set test gas, perforation, and lower bridge of H3 platform H3-1 well and H3-2 well after the Hun platform 101-94 well group carries out double-level well factory fracturing test. Pilot test of general well contracting technical services such as plugging, fracturing, microseismic monitoring, coiled tubing drilling, and ground support.
It is understood that Chuanqing underground operation company dispatched 21 sets of 2000 type fracturing trucks, which are equipped with ready-to-spot ground technology. The maximum pumping pressure is 87.19 MPa, the maximum displacement is 11.9 cubic meters per minute, and the highest sand concentration is 253 cubic meters per kilogram. In the case of rice, the total liquid volume injected into the formation is 43,200 cubic meters, and the total sand volume is 1908.73 tons. The scale of construction work, the process of process implementation, the integration of organization and operation, the refinement of production management, and the on-site construction are realized. standardization.
Industrialized fracturing is the application of system engineering ideas and methods to centrally allocate human, material, investment, organization and other factors, using similar production methods or methods, through modern production equipment, advanced technology and modern management methods. Scientifically and reasonably organize construction and production operations such as fracturing (including test gas). In general, factory fracturing is the same as ordinary factories, by optimizing the production organization mode, continuously pumping fracturing fluid and proppant to the formation in a fixed place to speed up construction, shorten the production cycle, and reduce mining. cost. The zipper fracturing technology is the main method of factory fracturing. It can realize the fracturing of any number of segments. The waiting time between segments and segments is 2~3 hours. With this gap, equipment maintenance and fuel addition can be completed. The most commonly used large-scale fracturing in shale gas horizontal wells in North America is zipper fracturing.
Powder carbon is Huahui Company's third series of
products. Acid washed carbon is Huahui Company's fourth series of products. Through acid washing, alkali washing and special technologies, Huahui can produce < 3% ultra low ash activated carbon.The common produced varieties
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Acid powder
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Ningxia Huahui Activated Carbon Company Limited , https://www.huahurcarbon-tr.com