头台油田茂503区块储层物性及增产措施研究

Abstract

Abstract:

The further understand of the reservoir characteristics of the peripheral low permeability blocks in Daqing oilfield provides the theoretical basis for the adjustment of the development measures. Taking the block Mao-503 in Toutai oilfield as an example, and by using the equipment of the mercury injection apparatus, the X-ray energy dispersion spectrometer, the scanning electron microscope and the displacement equipment, we provide the stimulation suggestions of the improving recovery ratio by the imbibition oil recovery, according to the imbibition test and field experiment effects and based on the characters of the pore structure, mineral composition, wettability and reservoir sensitivity. The reservoir physical properties test of the block Mao-503 in Toutai oilfield shows that the main clay minerals of the reservoir rock are the illite, montmorillonite and kaolinite, the main component elements are oxygen（O）, silicon（Si） and aluminium（Al）, and the minor elements are ferrum（Fe）, magnesium（Mg）, natrium（Na）, barium（Ba） and carbon（C）. The target reservoir with the porosity between 10 % and 17 % and the permeability range of （0.40~8.2）×10 ^-3μm ² belongs to the medium porosity and ultra-low permeability sandstone reservoir. The pore throat size of the rocks is relatively small, and the sorting and connectivity are poor. Furthermore, the rocks show weak hydrophilicity, and the capillary force can be used as power in the process of the production. Meanwhile, the rocks have strong velocity sensitivity, water sensitivity and alkaline sensitivity. The indoor experiment and mineral field experiment show that the similar physical block is suitable for the imbibition oil recovery, and adding the surfactant into the water solution is good for improving the imbibition recovery and enhancing the development effects.

Key words: Toutai oilfield, pore structure, mineral composition, wettability, reservoir sensitivity, imbibition oil recovery

CLC Number:

TE122.2

Kun Xie,Xiangguo Lu,Bao Cao, et al. Reservoir physical property and stimulation treatment of block Mao-503 in Toutai oilfield[J]. Reservoir Evaluation and Development, 2018, 8(1): 4-11.

Figures/Tables 21

Table 1

Table 2

Fig. 1

Fig. 2

Table 3

Fig. 3

Table 4

Table 5

Table 6

Table 7

Fig. 4

Table 8

Table 9

Fig. 5

Table 10

Table 11

Fig. 6

Table 12

Table 13

Table 14

Fig. 7

References 17

[1]	王德民, 程杰成, 吴军政 , 等. 聚合物驱油技术在大庆油田的应用[J]. 石油学报, 2005,26(1):74-78. doi: 10.3321/j.issn:0253-2697.2005.01.015
[2]	卢祥国, 王树霞, 王荣健 , 等. 深部液流转向剂与油藏适应性研究——以大庆喇嘛甸油田为例[J]. 石油勘探与开发, 2011,38(5):576-582. doi: 10.1016/S1876-3804(11)60056-6
[3]	刘进祥, 卢祥国, 刘敬发 , 等. 交联聚合物溶液在岩心内成胶效果及机理[J]. 石油勘探与开发, 2013,40(4):474-480. doi: 10.11698/PED.2013.04.13
[4]	曾建 . 长庆特低渗油藏超前注水改善开发效果机理研究[D]. 成都:西南石油大学, 2006.
[5]	崔传智, 安然, 李凯凯 , 等. 低渗透油藏水驱注采压差优化研究[J]. 特种油气藏, 2016,23(3):83-85,154-155.
[6]	张美玲, 祁蒙, 林丽丽 . 大庆外围油田特低渗透油藏水淹层综合评价方法[J]. 岩性油气藏, 2016,28(2):93-100.
[7]	孟阳 . 人工裂缝对低渗透油藏油水渗流影响实验研究[J]. 特种油气藏, 2015,22(1):124-126. doi: 10.3969/j.issn.1006-6535.2015.01.029
[8]	李道品 . 低渗透油田开发[M]. 北京: 石油工业出版社, 1997: 57-64.
[9]	王越, 何青, 陈付虎 , 等. 浅层裂缝性致密油藏缝网压裂技术[J]. 大庆石油地质与开发, 2015,34(2):99-102. doi: 10.3969/J.ISSN.1000-3754.2015.02.019
[10]	韩冬, 彭昱强 . 表面活性剂对水湿砂岩的渗吸规律及其对采收率的影响[J]. 中国石油大学学报(自然科学版), 2009,33(6):142-147. doi: 10.3321/j.issn:1673-5005.2009.06.029
[11]	许建红, 马丽丽 . 低渗透裂缝性油藏自发渗吸渗流作用[J]. 油气地质与采收率, 2015,22(3):111-114.
[12]	殷代印, 宋欣 . 低渗透油田周期注水与调剖结合参数优化研究[J]. 特种油气藏, 2013, 20(6):63-65,83,144.
[13]	王坤阳, 杜谷, 杨玉杰 , 等. 应用扫描电镜与X射线能谱仪研究黔北黑色页岩储层孔隙及矿物特征[J]. 岩矿测试, 2014,33(5):634-639. doi: 10.3969/j.issn.0254-5357.2014.05.004
[14]	谢坤, 卢祥国, 陈欣 , 等. 高温低渗油藏中表面活性剂溶液渗吸效果影响因素研究[J]. 西安石油大学学报(自然科学版), 2015,30(5):80-84.
[15]	薛建强, 覃孝平, 赖南君 , 等. 超低渗透油田降压增注体系的研究与应用[J]. 岩性油气藏, 2013,25(6):107-111. doi: 10.3969/j.issn.1673-8926.2013.06.020
[16]	Darvishi H, Goodarznia I, Esmaeilzadeh F . Effects of rock permeability on capillary imbibition oil recovery from carbonate cores[J]. Scientia Iranica, 2010,17(2):185-190.
[17]	孙琳, 蒲万芬, 辛军 , 等. 表面活性剂对低渗岩心高温渗吸的影响[J]. 中国石油大学学报(自然科学版), 2012,36(6):103-107. doi: 10.3969/j.issn.1673-5005.2012.06.019

水型	阳离子			阴离子				总矿化度
水型	Na⁺	Ca²⁺	Mg²⁺	HCO₃^-	Cl^-	SO₄^2-	CO₃^2-	总矿化度
注入清水	321.6	48.1	8.9	820.1	70.3	35.2	28.8	1 333.0
注入污水	1 263.3	26.7	17.8	1 181.4	1 094.3	99.3	53.3	3 736.1
地层水	2 028.2	121.8	10.2	802.6	2 101.8	1 055.7	21.0	6 141.5

岩心	渗透率K_g/ 10^-3μm²	孔隙度,%	排驱压力/ MPa	最大孔喉半径/μm	中值压力 p_c50/MPa	孔隙中值半径/μm	分选系数	歪度	最大进汞饱和度,%
M-0	0.4	10.3	1.473 2	0.499 2	29.815	0.03	1.47	-0.10	71.95
M-1	1.2	13.4	1.035 4	0.709 9	5.401	2.71	1.94	0.49	76.31
M-2	4.0	17.0	0.248 1	2.958 8	12.569	4.62	2.42	0.14	65.30
M-3	6.6	15.6	0.248 4	2.962 0	96.965	6.22	2.83	0.04	50.26
M-4	8.2	14.0	0.107 1	6.864 7	86.173	8.17	2.92	-0.16	51.38

岩心	元素,%
岩心	碳（C）	氧（O）	铁（Fe）	镁（Mg）	铝（Al）	硅（Si）	钠（Na）	钡（Ba）
M-1		45.92			2.30	13.49		38.28
M-2	8.88	45.90	3.70	4.76	13.76	20.05	2.96
M-3	0.66	49.48			6.15	42.37	1.33
M-4		55.71	4.54	1.85	16.08	21.82

接触角（θ_c）	润湿性
0^o≤θ_c<75^o	亲水
75^o≤θ_c≤105^o	中间润湿
105^o<θ_c≤180^o	亲油

岩心编号	参数
岩心编号	接触角（θ_c）/（°）	润湿性
M-1	82.3	弱亲水
M-2	76.5	弱亲水
M-3	80.3	弱亲水
M-4	93.5	中间润湿

Reservoir physical property and stimulation treatment of block Mao-503 in Toutai oilfield

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 21

References 17

Related Articles 15

Metrics

Comments

Recommended 0

序号	速敏损害率,%	损害程度
1	D_v≤5	无
2	5<D_v≤30	弱
3	30<D_v≤50	中等偏弱
4	50<D_v≤70	中等偏强
5	D_v>70	强

序号	碱敏损害率,%	损害程度
1	D_al≤5	无
2	5<D_al≤30	弱
3	30<D_al≤50	中等偏弱
4	50<D_al≤70	中等偏强
5	D_al>70	强

岩心	渗透率K_g/10^-3μm²	渗吸液	界面张力/（mN·m^-1）	接触角/ （°）	采收率, %
M-10	3.3	污水	4.035	73.6	15.8
M-11	3.5	0.3 %ZWB	0.093	24.5	25.1
M-12	3.1	0.3 %ZWB+0.3 %NaOH	0.054	24.1	21.5

井号	吞吐前			关井月压降/MPa	吞吐后初期效果			目前效果			目前有效时间/月
井号	日产液/t	日产油/t	含水率,%	关井月压降/MPa	日产液/t	日产油/t	含水率,%	日产液/t	日产油/t	含水率,%	目前有效时间/月
M38-S64	0.6	0.5	12	1.0	3.9	1.4	64.1	1.4	0.6	60.6	4

[1]	LIU Xugang, LI Guofeng, LI Lei, WANG Ruixia, FANG Yanming. Imbibition displacement mechanism of fracturing fluid in shale oil reservoir [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(5): 756-763.
[2]	ZHANG Wen,LIANG Lixi,LIU Xiangjun,XIONG Jian,ZHANG Yinan. Etching morphology and mechanical properties of carbonate rocks under acid action [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(2): 247-255.
[3]	GUO Zhidong, KANG Yili, WANG Yubin, GU Linjiao, YOU Lijun, CHEN Mingjun, YAN Maoling. Gas-water relative permeability characteristics and production dynamic response of low pressure and high water cut tight gas reservoirs [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(1): 138-150.
[4]	WANG Xiaoming,CHEN Junbin,REN Dazhong. Research progress and prospect of pore structure representation and seepage law of continental shale oil reservoir [J]. Reservoir Evaluation and Development, 2023, 13(1): 23-30.
[5]	ZHU Suyang,MENG Shangzhi,PENG Xiaolong,LI Xiangchen,ZHANG Qiangui,ZHANG Si. Mechanism of coal wettability on storage state of undersaturated CBM reservoirs [J]. Petroleum Reservoir Evaluation and Development, 2022, 12(4): 580-588.
[6]	YANG Yubin,XIAO Wenlian,HAN Jian,GOU Ling,LI Min,ZHOU Keming,OUYANG Mukun,CHEN Li. Gas-water flow characteristics and influencing factors of tight sandstone in Danfengchang Gas Field [J]. Reservoir Evaluation and Development, 2022, 12(2): 356-364.
[7]	LIU Shugen, RAN Bo, YE Yuehao, WANG Shiyu, YANG Di, LUO Chao, HAN Yuyue, SONG Jinmin, ZHANG Xuan. Outcrop of Ordovician Wufeng Formation-Silurian Longmaxi Formation in Qilong Village, Xishui, Guizhou [J]. Reservoir Evaluation and Development, 2022, 12(1): 10-28.
[8]	SUN Cangjun,HUANG Lei,WU Haojun,JIANG Yong,WANG Di. Acid sensitivity evaluation of ultra-low permeability reservoir in structure-B of Bohai Bay [J]. Petroleum Reservoir Evaluation and Development, 2021, 11(5): 703-708.
[9]	SONG Wenhui,LIU Lei,SUN Hai,ZHANG Kai,YANG Yongfei,YAO Jun. Pore structure characterization and flow ability of shale oil reservoir based on digital cores [J]. Petroleum Reservoir Evaluation and Development, 2021, 11(4): 497-505.
[10]	CHEN Mingjiang,LIU Junhai,CHENG Liang. Identification of fluid type and fine characterization of oil-water contact for an oil reservoir with strong vertical heterogeneity [J]. Petroleum Reservoir Evaluation and Development, 2021, 11(3): 428-436.
[11]	XIONG Liang,PANG Heqing,ZHAO Yong,WEI Limin,ZHOU Hua,CAO Qian. Micro pore structure characterization and classification evaluation of reservoirs in Weirong Deep Shale Gas Field [J]. Reservoir Evaluation and Development, 2021, 11(2): 154-163.
[12]	YANG Tingbao,ZHONG Huiying,XIA Huifen,ZHAO Xin. Mechanism of residual oil mobilization after water flooding based on microscopic flow characteristics [J]. Reservoir Evaluation and Development, 2020, 10(6): 46-52.
[13]	LIU Shugen,YE Yuehao,RAN Bo,JIANG Lei,LI Zhiwu,LI Jinxi,SONG Jinmin,JIAO Kun,LI Zeqi,LI Yuwei. Evolution and implications of shale pore structure characteristics under different preservation conditions [J]. Reservoir Evaluation and Development, 2020, 10(5): 1-11.
[14]	KANG Yili,BAI Jiajia,LI Xiangchen,CHEN Mingjun,YOU Lijun,LI Xinlei,LI Qing,FANG Dazhi. Influence of water-rock interaction on stress sensitivity of organic-rich shales: A case study from Longmaxi formation in the southeast area of Chongqing [J]. Reservoir Evaluation and Development, 2019, 9(5): 54-62.
[15]	PANG Liufa. Acoustic characteristics of tight sandstone under different variable effective stress [J]. Reservoir Evaluation and Development, 2019, 9(4): 1-5.

岩心	孔隙度, %	渗透率K_g/ 10^-3μm²	速敏损害率, %	速敏损害程度
M-5	14.8	2.3		强
M-6	16.3	2.5	48.9	中等偏弱
M-7	15.9	2.1		强