塔河油田超深井稠油地面热裂化降黏回掺可行性研究

doi:10.13809/j.cnki.cn32-1825/te.2020.02.015

Abstract

Abstract:

Due to the lack of dilute oil and the poor economical benefit in the dilution process of heavy oil in ultra-deep wells of Tahe Oilfield, the mixed oil is treated by dilute oil recycling combined with high-temperature thermal cracking process. For one thing, the experiment of dilute oil recycling after heavy oil distillation is carried out to determine the feasibility of cycling of light component oil. For another thing, the viscosity of the heavy components is reduced to meet the requirement of external transportation. The results show that when in the dilute oil recycling experiment, the light component yield obtained by distillation at 350 ℃ is stable at about 27 %, and the dilution ratio is stable at 0.39∶1, which indicates that dilute oil recycling is feasible. While in the modification experiment by thermal cracking, after the heavy components obtained by distillation reacting at 380 ℃ for 60 minutes, the oil viscosity can be reduced from 398 800 mPa·s to 1 704 mPa·s, which means it has met the requirement of long-distance transportation, and the density can be reduced from 1.001 8 g/cm ³ to 0.991 1 g/cm ³. Therefore, the lightening of heavy oil is realized. This method not only greatly reduces the amount of dilute oil by the recycling utilization of light oil, but also improves the quality and utilization efficiency of heavy oil. It provides a new idea for the efficient development of heavy oil in ultra-deep wells.

Key words: Tahe Oilfield, heavy oil, reduced viscosity, thermal cracking, heavy oil modification, dilute oil recycling

CLC Number:

TE345

CHENG Zhongfu,REN Bo,JIANG Yingfang,LIU Lei,YANG Zuguo. Feasibility of ground thermal cracking viscosity reduction and re-mixing technology of heavy oil in ultra-deep wells of Tahe Oilfield[J].Reservoir Evaluation and Development, 2020, 10(2): 90-93.

Figures/Tables 5

Table 1

Table 2

Fig. 1

Table 3

Table 4

References 17

[1]	兀涛 . 石油行业中的稠油降黏增效技术[J]. 石化技术, 2018,25(12):34.
	WU T . Viscosity reduction and efficiency increase technology of heavy oil in petroleum industry[J]. Petrochemical Industry Technology, 2018,25(12):34.
[2]	杨思远 . 塔河油田稠油地面改质工艺方案及经济评价研究[J]. 油气田地面工程, 2018,37(8):13-16.
	YANG S Y . Process scheme and economic evaluation study of heavy oil surface modification in Tahe oilfield[J]. Oil-Gas Field Surface Engineering, 2018,37(8):13-16.
[3]	李爱华, 王桂兵 . 稠油开采新工艺及新技术探讨[J]. 石化技术, 2019,26(9):112-113.
	LI A H, WANG G B . Discussion on new process and new technology of heavy oil exploitation[J]. Petrochemical Industry Technology, 2019,26(9):112-113.
[4]	张大勇 . 论超稠油国内外的常用开采手段[J]. 石化技术, 2019,26(3):307.
	ZHANG D Y . On the common exploitation methods of super heavy oil at home and abroad[J]. Petrochemical Industry Technology, 2019,26(3):307.
[5]	邓淇文 . 稠油降黏开采技术研究进展[J]. 化工设计通讯, 2018,44(9):124.
	DENG Q W . Research progress on viscous oil viscosity reduction mining technology[J]. Chemical Engineering Design Communications, 2018,44(9):124.
[6]	郝肖飞 . 稠油开采工艺技术措施[J]. 化工设计通讯, 2019,45(8):33-34.
	HAO X F . Technical measures for heavy oil exploitation[J]. Communications in Chemical Engineering Design, 2019,45(8):33-34.
[7]	宫臣兴, 李继红, 史毅 . 稠油开采技术及展望[J]. 辽宁化工, 2018,47(4):327-329.
	GONG C X, LI J H, SHI Y . Heavy oil recovery technologies and their development trend[J]. Liaoning Chemical Industry, 2018,47(4):327-329.
[8]	刘晓瑜, 赵德喜, 李元庆 , 等. 稠油开采技术及研究进展[J]. 精细石油化工进展, 2018,19(1):10-13.
	LIU X Y, ZHAO D X, LI Y Q , et al. Progress of research on viscous crude production techniques[J]. Advances in Fine Petrochemicals, 2018,19(1):10-13.
[9]	王治红, 肖惠兰, 左毅 . 开采与集输过程中稠油降黏技术研究进展[J]. 天然气与石油, 2012,30(6):1-4.
	WANG Z H, XIAO H L, ZUO Y . Research progress of viscosity reducing technology in heavy oil production and gathering and transportation[J]. Natural Gas and Oil, 2012,30(6):1-4.
[10]	周明辉, 孙文杰, 李克文 . 纳米催化剂辅助超稠油氧化改质实验研究[J]. 中国科学:技术科学, 2017,47(2):197-203.
	ZHOU M H, SUN W J, LI K W . Experimental research of nano catalyst assisted oxidization upgrading of super heavy oil[J]. Scientia Sinica(Technologica), 2017,47(2):197-203.
[11]	刘灏亮, 孙铎 . 蒸汽吞吐中甲酸为供氢体的稠油改质研究[J]. 化工管理, 2017,32(5):148.
	LIU H L, SUN D . Study on upgrading heavy oil using formic acid as hydrogen donor in steam huff and puff[J]. Chemical Enterprise Management, 2017,32(5):148.
[12]	沐俊, 沐利彬 . 劣质重质稠油改质工艺技术进展[J]. 炼油与化工, 2015,26(5):1-5.
	MU J, MU L B . Process technology progress of inferior heavy viscous oil upgrading[J]. Refining and Chemical Industry, 2015,26(5):1-5.
[13]	吴川, 张汝生, 张祖国 , 等. 超稠油改质降黏分子模拟及机理[J]. 石油学报, 2015,36(3):355-360.
	WU C, ZHANG R S, ZHANG Z G , et al. Molecular simulation and mechanism for upgrading and viscosity reduction of extra-heavy oil[J]. Acta Petrolei Sinica, 2015,36(3):355-360.
[14]	吴川, 陈艳玲, 王元庆 , 等. 超稠油改质降黏机理研究[J]. 西南石油大学学报(自然科学版), 2010,32(2):145-148.
	WU C, CHEN Y L, WANG Y Q , et al. Study on the upgrading and viscosity-reducing mechanism of ultra-heavy oil[J]. Journal of Southwest Petroleum University(Natural Science Edition), 2010,32(2):145-148.
[15]	熊兆洪 . 超稠油裂解改质降黏实验[J]. 油气田地面工程, 2012,31(1):20-22.
	XIONG Z H . Experiment of cracking, upgrading and viscosity reduction of super heavy oil[J]. Oil-Gasfield Surface Engineering, 2012,31(1):20-22.
[16]	黄娟, 任波, 李本高 , 等. 塔河稠油地面催化改质降黏中试研究[J]. 石油炼制与化工, 2014,45(9):20-23.
	HUANG J, REN B, LI B G , et al. Field test for viscosity reduction of Tahe heavy oil by hydrothermal catalytic modification[J]. Petroleum Processing and Petrochemicals, 2014,45(9):20-23.
[17]	钟英竹, 靳爱民 . 渣油加工技术现状及发展趋势[J]. 石油学报(石油加工), 2015,31(2):436-443.
	ZHONG Y Z, JIN A M . Present situation and progresses of residue processing technology[J]. Acta Petrolei Sinica(Petroleum Processing Section), 2015,31(2):436-443.

项目	数据	项目	数据
黏度（50 ℃时）/（ mPa·s）	1 688	ω（Ni）/（μg·g^-1）	63.9
密度（20 ℃时）/（g·cm^-3）	0.954 8	ω（V）/（μg·g^-1）	241.7
ω（沥青质）/%	17.0	ω（Fe）/（μg·g^-1）	30.7
ω（胶质）/%	34.1	ω（S）/%	2.5
ω（芳香烃）/%	27.2	ω（N）/%	0.42
ω（饱和烃）/%	21.7	ω（O）/%	0.86

项目	数据	项目	数据
黏度（50 ℃）/（mPa·s）	398 800	ω（Ni）/（μg·g^-1）	120.9
密度（20 ℃）/（g·cm^-3）	1.001 8	ω（V）/（μg·g^-1）	426.7
ω（沥青质）/%	34.8	ω（Fe）/（μg·g^-1）	79.7
ω（胶质）/%	31.9	ω（S）/%	3.81
ω（芳香烃）/%	21.7	ω（N）/%	1.21
ω（饱和烃）/%	11.6	ω（O）/%	1.74

轻组分	实沸点蒸馏轻组分收率/%	稀稠比	黏度（50 ℃）/（mPa·s）	斑点实验级别
1	28.2	0.39∶1	1 760	1
2	26.9	0.39∶1	1 740	1
3	27.5	0.39∶1	1 780	1

反应温度/℃	时间/ min	黏度（50 ℃时）/（mPa·s）	密度/ （g·cm^-3）	生焦率/ %	降黏率/ %
360	30	15 960	0.991 2	0.1	96.0
	60	12 335	0.993 6	0.2	96.9
	90	7 760	0.993 3	0.3	98.1
380	30	5 092	0.990 5	0.3	98.7
	60	1 704	0.991 1	1.2	99.6
	90	1 020	0.990 6	2.3	99.7
400	30	3 610	0.993 3	0.9	99.1
	60	2 258	0.990 7	2.1	99.4
	90	723	0.992 6	4.9	99.8
420	30	265	0.989 3	6.0	99.9
	60	107	0.989 1	9.9	99.9
	90	51	0.993 6	15.9	99.9

Feasibility of ground thermal cracking viscosity reduction and re-mixing technology of heavy oil in ultra-deep wells of Tahe Oilfield

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 5

References 17

Related Articles 15

Metrics

Comments

Recommended 10

[1]	REN Hong,LI Weiqi,GUO Zhongchun,YANG Xiaoteng,XU Jian,WANG Xiao. Dynamic quantitative characterization and automatic identification of the buried hill reservoir types in Yakela block [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(6): 789-800.
[2]	CHENG Xiaojun. Enhanced oil recovery and parameter optimization of hydrocarbon injection in fractured-cavity reservoirs [J]. Petroleum Reservoir Evaluation and Development, 2022, 12(6): 902-909.
[3]	GUO Deming,PAN Yi,SUN Yang,CHAO Zhongtang,LI Xiaonan,CHENG Shisheng. EOR mechanism of viscosity reducer-CO₂ combined flooding in heavy oil reservoir with low permeability [J]. Petroleum Reservoir Evaluation and Development, 2022, 12(5): 794-802.
[4]	CHENG Keyang,QI Zhilin,TIAN Jie,YAN Wende,HUANG Xiaoliang,HUANG Shiwen. Change law of reservoir property during multi-cycle steam stimulation in heavy oil reservoir: A case study of HJ Oilfield [J]. Petroleum Reservoir Evaluation and Development, 2022, 12(5): 816-824.
[5]	LIU Xueli,ZHENG Xiaojie,DOU Lian,XIE Shuang,PENG Xiaolong,ZHU Suyang. High precision numerical simulation of thin sandstone reservoir with sufficient bottom water and multiple cyclothem: A case study on lower formation of 9th block of Tahe Oilfield [J]. Reservoir Evaluation and Development, 2022, 12(2): 391-398.
[6]	WANG Junheng,WANG Jian,ZHOU Zhiwei,WANG Danling,ZHAO Peng,WANG Guiqing,LU Yingbo. Experimental study on mechanism of CO₂ assisted steam flooding in heavy oil reservoir [J]. Petroleum Reservoir Evaluation and Development, 2021, 11(6): 852-857.
[7]	LIU Gang,WANG Junheng,WANG Danling,YAN Yonghe,JIANG Xuefeng,WANG Qian. Development and reservoir adaptability evaluation of a high temperature resistant plugging agent: tannin extract [J]. Petroleum Reservoir Evaluation and Development, 2021, 11(3): 452-458.
[8]	SANG Linxiang,LYU Bailin,LU Yingbo,WANG Junheng,WANG Jian,HUANG Kechuan,MA Peng,XING Xiangrong. Experiment on steam flooding assisted by gas injection in Z32 heavy oil reservoir in Fengcheng of Xinjiang and its application [J]. Reservoir Evaluation and Development, 2021, 11(2): 241-247.
[9]	LIU Xueli,ZHENG Xiaojie,TAN Tao,DOU Lian,XIE Shuang. Experiments on CO₂ flooding mechanism for Tahe sandstone reservoir with strong bottom water [J]. Reservoir Evaluation and Development, 2020, 10(6): 115-120.
[10]	GAO Hao,PU Wanfen,LI Yibo,LUO Qiang,SUN Ziqi. Deep profile control experiment of in-situ gel after steam flooding in heavy oil reservoir [J]. Reservoir Evaluation and Development, 2020, 10(6): 58-64.
[11]	LIANG Yan,WANG Zenglin,SHI Shubin,GUO Yongjun,HU Jun,LUO Pingya,ZHANG Xinmin,CAO Miao,ZHANG Wei,LIU Yang. Heavy oil displacement-mobility control and heterogeneity adjustment: Associative polymer versus HPAM [J]. Reservoir Evaluation and Development, 2020, 10(6): 65-71.
[12]	YANG Shengzhen,LIU Dongdong,PU Wanfen,ZHU Qiubo,YANG Yang. Physical simulation of output rule for carbon monoxide in cyclic steam stimulation process of Hongshan heavy oil reservoir [J]. Reservoir Evaluation and Development, 2020, 10(5): 103-107.
[13]	ZHANG Nan,LU Xiangguo,LIU Jinxiang,GE Song,LIU Yigang,ZHANG Yunbao,LI Yanyue. Physical simulation experiment study on effect of profile modification in Bohai LD5-2 reservoir [J]. Reservoir Evaluation and Development, 2020, 10(4): 119-124.
[14]	JIANG Yongping. Synthesis of a new viscosity reducer for CO₂ compound huff and puff in North Jiangsu heavy oil reservoirs and its effectiveness evaluation [J]. Reservoir Evaluation and Development, 2020, 10(3): 39-44.
[15]	WU Xi,ZHANG Zhuxin,ZHANG Xiaoqing,LI Yunpeng,CHEN Zixiang,TANG Yong. Optimization and practice of CO₂ huff and puff parameters of heavy oil reservoir in the middle and late development stage in Dagang Oilfield [J]. Reservoir Evaluation and Development, 2020, 10(3): 80-85.