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 Wysłany: Sob 3:13, 13 Lis 2010 Temat postu: ghd styler Bubble jet technology in plugging red s |
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Bubble jet technology in plugging red sand island Oilfield
If the amount of NaC1 or CaC12 added,% of free water% CaCl, OO. 1O. 10.15O. 15O. 201. O1.52.02.53.04.05.000O. 10.10.15O. 15CaC1 dosage increased, there was free water slurry, when the dosage of 5% NaCI and CaC1 increase was 3%, the maximum free water were 0.15% and 0.2%, less than well cement requirement of the value of free water (1.4%) ..., to meet the requirements of field use. Analysis,[link widoczny dla zalogowanych], although the Na and Can with the PVA in the reaction of the hydroxyl and the formation of complex, consume a part of the PVA particles, the slurry water loss performance degradation, but there are still a lot of cement latex particles, latex particles on the PVA adsorption and hydration of the hydroxyl has the dual role of latex particles with functional groups in molecules adsorbed on the surface of cement particles, the rest of the group can combine with water to form adsorbed water, adsorbed water layer of cement particles with the outer structure. Gradient at low speed, the viscosity of the structure of adsorbed water viscosity than free water promised (on the next page 99) 4 Conclusion times, can prevent agglomeration of cement particles, so that distribution of particles according to certain rules, so that Note for the slurry particles in the process of maintaining adequate particle dispersion, improves the stability of slurry. In addition, the remaining latex particles in the slurry system can form a certain network structure, a certain degree of free water can be bound, so that hampered the flow of water to control the slurry of free water. Sodium chloride and calcium chloride 3 Conclusion performance of slurry with a more significant impact. Sodium chloride and calcium chloride with alcohol response and intervention in the process of hydration of cement and cement slurry performance, loss of water to make slurry, the initial consistency, free water, compressive strength of cement and the bond strength increases,[link widoczny dla zalogowanych], the thickening time shortened. References: [1] Qinwei Tang, Hong-Jun Zhang, Zheng Chengsheng. Oil well cement fluid loss at home and abroad overview [J]. Drilling and completion fluid, 2005,22 (2) :54-58. [2] Li Jian, YAO Xiao, Wang Taicong. Foreign latex cementing technique [J]. Oil Drilling Technology, 1997,25 (2) :34-36. [3] Lu Yi, Guo Xiaoyang, Huang Zhiyu, et al. Polyvinyl alcohol as the oil well cement fluid loss research [J]. Natural gas industry, 2oo5, 25 (10): 6l a 63. [4] LIANG Nai-xing. Polymer Modified Concrete [M]. Beijing: China Communications Press, 1996: l3 a l7. [5] Yan Yanling, Gui-only. Summary of Chemical Agent Water Control [J]. GEOLOGY AND RECOVERY, 2003,10 (6) :64-67. [6] LIU Chong-Jian,[link widoczny dla zalogowanych], Huang Bozong, Xu same stage, and so on. Theory and Application of cement injection [M]. Beijing: Petroleum Industry Press, 2001: l13-125. [7】 OhamaY. Principleoflatexmodificationandsometypicalpropertiesoflatexmodifiedmortarsandconcrete [J]. ACIMaterialsJcornal, 1987,84 (6): 5ll a 5l8. Edit song undefeated nitrogen foam fluid has good carrying capacity, ability to help row, people can reduce the leakage of well fluid in the formation, the effective protection of reservoir; bubble jet direct role in the well section plugging can be effective out of the mud and sand, and other mechanical blockage and restore solution for the capacity of oil wells, is a process is simple, safe, lower-cost oil production recovery techniques. But the construction should be noted that if the formation of severe leakage, should reduce the density of foam fluid, helps to cycle back to liquid. References: [1] Cao Zheng right, Ma Hui, Jiang Na, et al. Nitrogen foam profile in isolated thermal recovery wells for oil field [J]. GEOLOGY AND RECOVERY, 2006,13 (5) :75-77. 【2] Wan Ping, Meng Yingfeng,[link widoczny dla zalogowanych], Xiaodong. Mechanism of the stability of foam fluid 【j]. Jianghan oil production technology, 2003,7 (2) :29-32. [3] MA Guang Long, Tang Jun, Gao Qiang. Bubble inflated and the fluid column pressure, fluid density method [J]. Drilling, 2OO4, 27 (4): 16 A l8. [4] Huang Zhongwei, Ma Jiaji. Li Gensheng. High-pressure rotary jet to lift the blockage of underground sand column [J]. Drilling & Production Technology, 2004,27 (6) -65-67. [5] Dan Xiaosong. Killing fluid foam of 39 wells in the application of [J]. Drilling & Production Technology,[link widoczny dla zalogowanych], 2003,26 (suppl.) :106-111. Edit Hou Ching
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