Reaction characteristics of sodium nitrite and ammonium chloride system

被引：0

作者：

Wang Y. ^{[1
,2
,3
]}

Qian C. ^{[1
,2
,3
]}

Ji Z. ^{[4
]}

Yan F. ^{[5
]}

Yang Z. ^{[1
,2
,3
]}

Ding M. ^{[1
,2
,3
]}

Chen W. ^{[1
,2
,3
]}

机构：

[1] Key Laboratory of Unconventional Oil & Gas Development of Ministry of Education, China University of Petroleum, Qingdao, 266580, Shandong

[2] Shandong Key Laboratory of Oilfield Chemistry, School of Petroleum Engineering, China University of Petroleum, Qingdao, 266580, Shandong

[3] School of Petroleum Engineering, China University of Petroleum, Qingdao, 266580, Shandong

[4] No. 2 Oil Production Plant, PetroChina Xinjiang Oilfield Company, Karamay, 834000, Xinjiang

[5] Drilling and Production Technology Research Institute, PetroChina Jidong Oilfield Company, Tangshan, 063000, Hebei

来源：

Shiyou Xuebao/Acta Petrolei Sinica | 2020年 / 41卷 / 02期

关键词：

Ammonium chloride; In-situ nitrogen generation system; Kinetic equation; Reaction characteristics; Sodium nitrite;

D O I：

10.7623/syxb202002008

中图分类号：

学科分类号：

摘要：

On the basis of in-situ nitrogen generation system of sodium nitrite and ammonium chloride commonly used in oil fields, the effects of various factors on gas production performance were investigated by atmospheric pressure/high pressure gas production experiments. The results show that when the molar concentration ratio of reactants is 1:1, the higher the reactant concentration, hydrogen ion concentration and temperature, the higher the reaction rate and gas production. The initial pressure of the reaction has little effect on gas production of the system. The heat generation capacity of the in-situ nitrogen reaction increases with an increase in the concentration of reactants, the concentration of hydrogen ions, and the initial reaction temperature, and the peak temperature of the reaction system is also increased. The reaction kinetic equation of NaNO2/NH4Cl system is dc/dt=-7.103×107c(H+)1.329 1c02.094 9e((-51.28)/(RT)). There are two intermediate products during the mixing reaction of NaNO2 and NH4Cl, i.e, H2N-NO and HN=NOH. The reaction rate is determined by the reaction forming H2N-NO by NH3 and N2O3 through the nucleophilic substitution process of SN2. The HN=NOH obtained by H2N-NO conversion can be spontaneously decomposed, producing the final products N2 and H2O. © 2020, Editorial Office of ACTA PETROLEI SINICA. All right reserved.

引用

页码：226 / 234

页数：8

共 30 条

[1]

LIAO Guangzhi, WANG Qiang, WANG Hongzhuang, Et al., Chemical flooding development status and prospect, Acta Petrolei Sinica, 38, 2, pp. 196-207, (2017)

[2]

GONG Wei, PU Wanfen, PENG Taojun, Et al., Studies on enhancing oil recovery by in-situ CO2 producing technique, Petroleum Geology & Oilfield Development in Daqing, 27, 6, pp. 104-107, (2008)

[3]

YANG Zhaopeng, LI Xingmin, CHEN Heping, Et al., SAGD development numerical simulation of foamy ultra-heavy oil reservoir after cold production, Acta Petrolei Sinica, 39, 4, pp. 445-455, (2018)

[4]

WU Wengang, CHEN Dajun, YAO Yan, Et al., Laboratory study of a self-generated gas fracturing fluid, Drilling Fluid & Completion Fluid, 24, 6, pp. 55-57, (2007)

[5]

LIU Hongsheng, WANG Junying, WANG Wentao, Et al., Fracturing treatment technology to energize chemically for low-pressure and low-permeability gas reservoirs, Natural Gas Industry, 28, 7, pp. 93-95, (2008)

[6]

AL-NAKHLI A R, SUKKAR L A, ARUKHE J, Et al., In-situ steam generation a new technology application for heavy oil production, (2016)

[7]

PU Chunsheng, QIN Wenlong, ZOU Hongjiang, Et al., Formation mechanism of carbon monoxide in high-energy gas fracturing, Acta Petrolei Sinica, 27, 6, pp. 100-102, (2006)

[8]

WANG Zhengmao, LIAO Guangzhi, PU Wanfen, Et al., Oxidation reaction features of formation crude oil in air injection development, Acta Petrolei Sinica, 39, 3, pp. 314-319, (2018)

[9]

HU Wei, LU Chengyuan, WANG Rui, Et al., Porous flow mechanisms and mass transfer characteristics of CO2 miscible flooding after water flooding, Acta Petrolei Sinica, 39, 2, pp. 201-207, (2018)

[10]

HAN Haishui, LI Shi, YAO Xiaoqi, Et al., Swelling ability prediction method of crude oil-CO2 system based on molar density, Acta Petrolei Sinica, 39, 4, pp. 456-462, (2018)

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