Warmest congratulations on the successful completion of our company's shareholding reform!
2015-04-06
Our company, through a resolution passed at the shareholders' meeting on March 10, 2015, officially changed its name from "Luoyang Jiujiu Technology Development Co., Ltd." to "Luoyang Jiujiu Technology Joint-Stock Co., Ltd." The subsequent business registration update was completed on March 31, 2015, marking the official transformation of our company type from a "Limited Liability Company" to a "Joint-Stock Company."
On March 10, 2015, our company passed a resolution at the shareholders' meeting to change its name from "Luoyang Jiujiu Technology Development Co., Ltd." to "Luoyang Jiujiu Technology Joint-Stock Co., Ltd." The official business registration update was completed on March 31, 2015, officially transforming our company type from a "Limited Liability Company" into a "Joint-Stock Company."
NEWS
Jet Reverse Circulation Well Flushing
Abstract：Combined with the domestic and foreign equipment parameters and the localization application status of drilling engineering in 2026, this paper systematically elaborates the working mechanism, complete set of equipment, technical indicators, applicable working conditions and process optimization development direction of the jet reverse circulation well flushing technology, providing theoretical and practical basis for the scheme selection of well flushing in shallow large-diameter drilling engineering.
Pump Suction Reverse Circulation Well Flushing Method
Abstract: This paper introduces the pump suction reverse circulation well flushing technology, which realizes well bore desilting through negative pressure suction. It involves special equipment and two starting methods, among which vacuum negative pressure starting is the preferred one. This technology is energy-saving and efficient, suitable for medium-shallow water wells with a depth of 60–80 meters. The construction key points, restricted scenarios and acceptance standards such as sand content of water quality are specified.
Air-Lift Reverse Circulation Well Flushing Method
Abstract: This paper elaborates the principle, complete supporting equipment and core parameters of air-lift reverse circulation well flushing technology, as well as field fault disposal methods, compares the advantages and disadvantages of two types of mixers, and provides standardized construction control indexes.
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139, Fengrun East Road, High-tech Development Zone, Luoyang City, Henan Province, China
