Sepdiesel
S Type Nozzle of injector, one type of Diesel Injector Nozzle, is a key part
and mounted on related Diesel Injector. The Injector Nozzle parameters affect
the engine combustion characteristics, emission stability, injector lifetime
performance and the mechanical durability, so strict manufacture and testing processes
should be taken. SEPDIESEL is a powerful supplier of diesel fuel injection
parts and is one of the first manufacturers engaged in S type nozzle in China.
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Author: Gang Bao Zhen 1,2, Wei Xiufen 2 (1. China University of Geosciences; 2 Daqing Oilfield Co., Ltd.) Keywords: oilfield development; different water contents; mechanical water shut off; review; trends; Daqing Oilfield Abstract: This paper analyzes the contradictions faced by water control measures in different water-bearing development stages in Daqing Oilfield, and discusses the continuous development and perfection of mechanical water shutoff technology. The packer for water blockage is gradually developed from compression type to compression type and balanced compression type, which improves the sealing rate and success rate of the process. The water shut-off device is gradually developed into a movable (eccentric) type with fixed concentric activities Equipped with a production, sliding sleeve-type water shut-off, a hydraulic adjustable layer of water shut-off, mechanical and hydraulic repeatable layer of layered water shut-off to achieve a fixed deployment of stratified pipe, reducing operating costs and increase The process efficiency; column from the overall development for the lost hand type, to overcome the pump up and down the entire column when the peristalsis and improve the packer sealing. In addition, the control technology for oil wells in the development stage of the ultra-high water cut period will face the contradiction of multi-layer high water cut. It is pointed out that the stratified oil recovery technology and intelligent sub-layer technology should be easily and repeatedly tuned to the ground during and after the 11th Five- Mining technology direction (P9 ~ 11, Table 1 Senate 4, Liuzhaozhi pick). Source: "Special Oil and Gas Reservoir" 2006 the second period