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
Two Dimensional Movement Mixer
EYH two-dimensional movement mixer is mainly composed of three parts such as the drum, oscillating frame and machine frame. The drum is installed on the oscillating frame, supported by four rollers and positioned axially by two catch wheels. In the four supporting rollers, the two driving wheels are pulled by the rotation power system to make the drum turn. The oscillating frame is driven by a group of crank rocker mechanism, which is installed on the machine frame. The oscillating frame is supported on the machine frame by the bearing assembly.
Features:
The drum of the EYH two-dimensional movement mixer can carry out two movements simultaneously: one is the rotation of the drum and the other is the oscillation of the drum along with the oscillating frame. While the materials to be mixed carry out rotation, turning and mixing along with the drum, they also make reciprocating mixing movement along with the oscillation of the drum. Under joint action of the two movements, the materials are sufficiently mixed within a short time. The EYH two-dimensional movement mixer is suitable for mixing all powder and granular materials.
Drawing:
Two Dimensional Movement Mixer,Two Dimensional Movement Blender, Two Dimensional Mixing Machine, 2D Movement Mixing Machine, 2D Movement Blending Machine
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