Laboratory Study on Viscosity Reducer for Paraffin Removal in Oil Well

Abstract

Abstract: To develop the viscosity reducer characterized by environmental protection, efficiency, multiple functions for paraffin removal in oil well is the direction for meeting the needs for oil production with different contents of paraffin in the future. Based on the evaluations of the effects of different surfactants and additives on paraffin dispersion, paraffin removal and viscosity reducing efficiency of Dagang heavy oils, the alkylbenzene sulfonates (ABL), amide nonionic surfactant (XE) and lignosulfonate (EM) were screened out to optimize the formulations and composite performance of the viscosity reducer by orthogonal test. The results show that the solution of formulation F6 (ABL and XE) is of stability, good for the dispersion of wax sediments and better for paraffin removal and viscosity reduction. The lab study indicates that the viscosity reduction rate and paraffin removal rate are 98% and 99%, respectively.

Key words: paraffin removal, viscosity reduction, dispersion, high pour-point oil, heavy oil

CLC Number:

TE358.2

LAI Yan-ling, ZHENG Yan-cheng. Laboratory Study on Viscosity Reducer for Paraffin Removal in Oil Well[J]. Xinjiang Petroleum Geology, 2011, 32(6): 678-680.

[1]	GUO Xiaozhe, ZHAO Jian, GAO Wanglai, PU Yanan, LI Chenggeer, GAO Neng. EOR Mechanism of Compound Gas Injection After Multiple Cycles of Oxygen-Reduced Air Huff and Puff in Heavy Oil Reservoirs [J]. Xinjiang Petroleum Geology, 2022, 43(4): 450-455.
[2]	GUO Yunfei, LIU Huiqing, LIU Renjie, ZHENG Wei, DONG Xiaohu, WANG Wuchao. Comprehensive Evaluation on Steam Chamber Location and Production Prediction of SAGD in Heavy Oil Reservoirs [J]. Xinjiang Petroleum Geology, 2022, 43(4): 484-490.
[3]	CHI Yungang, TANG Zhixia, WEI Jing, ZHOU Huize, ZHANG Wenhui. Dominant Water Flow Channels in Block VI of North Buzachi Oilfield [J]. Xinjiang Petroleum Geology, 2022, 43(4): 496-504.
[4]	HUANG Weiqiang. Development of Low-Permeability Heavy Oil Reservoirs by CO₂ + Surfactant Combination Huff and Puff : A Case Study of Upper Wuerhe Formation Reservoir in Southern Block 5, Karamay Oilfield [J]. Xinjiang Petroleum Geology, 2022, 43(2): 183-187.
[5]	CHANG Taile, YANG Yuanliang, GAO Zhiwei, HU Chunyu, ZHENG Xiaoqiang, ZHANG Meng, YUAN Yiping. Applicability of Nitrogen Foam in Developing Shallow-Thin Ultra-Heavy Oil Reservoirs [J]. Xinjiang Petroleum Geology, 2021, 42(6): 690-695.
[6]	LIU Yanhong, WAN Wensheng, LUO Hongcheng, LI Chen, ZHANG Wu, MA Baojun. Self-Emulsification and Waterflooding Characteristics of Heavy Oil Reservoirs in Wellblock Ji-7 [J]. Xinjiang Petroleum Geology, 2021, 42(6): 696-701.
[7]	YAN Hongxing. Comparison of Chromatographic Fingerprint Characteristics of Heavy Oil Based on Fire Flooding Experiments [J]. Xinjiang Petroleum Geology, 2021, 42(5): 592-597.
[8]	JIANG Yi, YU Gaoming, XIN Xiankang, WANG Lixuan, ZHANG Fengfeng, CHEN Minggui. Fire Front Prediction and Injection-Production Parameter Optimization for Block Gao 3618, Liaohe Oilfield [J]. Xinjiang Petroleum Geology, 2021, 42(4): 462-468.
[9]	WU Wei, ZHANG Bo. Occurrence Law of Remaining Oil in Heavy Oil Reservoirs With Strong Edge and Bottom Water in Taiping Oilfield [J]. Xinjiang Petroleum Geology, 2021, 42(2): 173-178.
[10]	XIONG Yu, LENG Aoran, SUN Yeheng, MIN Lingyuan, WU Guanghuan. Dispersion Mechanism of Viscosity Reducer and Evaluation of Displacement Experiment for Cold Production of Heavy Oil [J]. Xinjiang Petroleum Geology, 2021, 42(1): 68-75.
[11]	GAO Neng, ZHAO Jian, HE Jia. Application of Hypoxic Air Huff and Puff Technology in Deep Heavy Oil Reservoirs in Lukeqin Oilfield [J]. Xinjiang Petroleum Geology, 2020, 41(6): 748-752.
[12]	YAO Qian, HAN Denglin, WANG Chenchen, YANG Chengye, CHEN Qi. Quantitative Characterization of Reservoir Changes Before and After Fire Flooding in Heavy Oil Reservoirs: A Case Study of Well Gao 3-6-18 in Liaohe Oilfield [J]. Xinjiang Petroleum Geology, 2020, 41(5): 592-598.
[13]	ZHANG Na, ZHU Yuanrui, ZHU Yangwen, LI Jinpan, WEI Cuihua. Multiple Thermal Fluid Huff-Puff Mechanism Based on Discrete Wellbore Model [J]. Xinjiang Petroleum Geology, 2020, 41(3): 332-336.
[14]	ZHENG Wei, TAN Xianhong, WANG Taichao, ZHU Guojin, ZHANG Lijun. A New Method to Determine Initial Production of Steam Stimulation in Offshore Heavy Oilfield [J]. Xinjiang Petroleum Geology, 2020, 41(3): 344-348.
[15]	WU Han, LIN Botao, PAN Jingjun, CHEN Sen. Characteristics of In-Situ Stress Field in Heterogeneous Ultra-Heavy Oil Reservoir of Fengcheng Oilfield [J]. Xinjiang Petroleum Geology, 2020, 41(2): 217-222.

Laboratory Study on Viscosity Reducer for Paraffin Removal in Oil Well

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments