Polymer mother liquid deaerating device
A technology of polymer and mother liquor, applied in the directions of liquid degassing, chemical instruments and methods, separation methods, etc., can solve the problems of macromolecular chain scission and reduction of mother liquor viscosity, etc.
Active Publication Date: 2019-05-21
PETROCHINA CO LTD
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Problems solved by technology
[0005] The embodiment of the present invention provides a polymer mother liquid deoxygenation device, which can solve the problem that the mother liquid carries oxygen in the aging mode and causes the macromolecular chain of the polymer to break, thereby reducing the viscosity of the mother liquid. The technical solution is as follows:
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0025] Exemplary embodiments will be described in detail herein, and the implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention; Examples of apparatus and methods described herein are consistent with aspects of the invention.
[0026] Embodiments of the present invention provide a polymer mother liquid oxygen removal device, such as figure 1 As shown, the device includes:
[0027] Tank body 1, the upper surface of the tank body 1 is provided with a first opening and at least one second opening, the first opening is provided with a liquid inlet valve 2, and the at least one second opening is provided with a breathing valve 3, the tank body The lower e...
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The invention discloses a polymer mother liquid deaerating device and relates to the field of tertiary oil recovery. According to the technical scheme provided by the embodiment of the invention, a backflow tank 6 which is spiral inside is designed, a columnar tube 4 with multiple screening holes is connected to the exterior of the backflow tank 6 in a sleeving manner, then a polymer mother liquidcan be fed into the backflow tank 6 from a liquid inlet valve 2, is uniformly blended in the flowing process in the spiral structure of the backflow tank 6, is further fed into an aging tank from thescreening holes 5 in the wall of the columnar tube 4 outside the backflow tank 6, a dissolved gas in the mother liquid is broken from the screening holes 5 and risen and discharged outside a gas removal device from an exhaust tube 7 connected with the wall of the columnar tube 4, then the purpose of removing the dissolved gas in the mother liquid is achieved, the situation that reactions are resulted because of the dissolved gas in the mother liquid aging process can be avoided, and the consequence that the viscosity of the polymer mother liquid is degraded can be avoided.
Description
technical field [0001] The invention relates to the field of tertiary oil recovery, in particular to a polymer mother liquor oxygen removal device. Background technique [0002] In order to increase the recovery rate of oilfield crude oil, those skilled in the art generally use tertiary oil recovery technology for production. Polymer flooding is an important technology in tertiary oil recovery. Its method is to dissolve and mature polymer dry powder on the ground to form a mother liquor, and inject the mother liquor into the ground through a polymer injection pump. [0003] The dissolution process makes the polymer mother liquid contain a certain amount of dissolved gas, so that the polymer mother liquid will undergo a redox reaction due to the presence of oxygen in the dissolved gas during the subsequent curing process, causing the macromolecular chain of the polymer to break, resulting in a decrease in the viscosity of the mother liquid . [0004] At present, for the dis...
Claims
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Inventor 闫云贵庄永涛张杰严曦黄津刘文刘学马俊
Owner PETROCHINA CO LTD