聚驱后综合治理措施增油效果及作用机理研究——以渤海LD10-1油田为例

Abstract

Abstract:

LD10-1 oilfield in Bohai reservoir is a thick reservoir with high average permeability, serious heterogeneity, low cementing strength of rock and high single well injection-production strength. For this reason, during the development of the profile control and oil displacement technology of polymer gel in the early stages, the contradiction between and within layers caused by the polymer retention and scour are obvious. Then we test the development of the comprehensive treatment of the effect screening and performance evaluation, profile control, plug release of modifying and flooding agent, alternative injection of the profile control and oil displacement agent and water after polymer flooding. The results showed that, with the same dosage of the polymer gel, and compared with the whole slug injection method, the gel and water alternating injection method can slow down the speed of the entry profile reversal, and extend the sweep coefficient of the medium and low permeability layer. When they are used together, the utilization level of the medium and low permeability layers is further enhanced, and the effect of oil increasing and precipitation is obvious.

Key words: Bohai Oilfield, early polymer flooding, comprehensive treatment, physical simulation, mechanism study

CLC Number:

TE357

Yigang Liu,Lihua Xiao,Jian Zou, et al. Study on oil increasing effect and mechanism of comprehensive treatment measures after polymer flooding: Taking LD10-1 oilfield in Bohai Oilfield as an example[J]. Reservoir Evaluation and Development, 2018, 8(4): 46-51.

Figures/Tables 8

Table 1

Fig. 1

Table 2

Fig. 2

Fig. 3

Table 3

Fig. 4

Fig. 5

References 14

[1]	朱怀江, 罗健辉, 杨静波 , 等. 疏水缔合聚合物驱油能力的三种重要影响因素[J]. 石油学报, 2005,26(3):52-55. doi: 10.3321/j.issn:0253-2697.2005.03.011
[2]	唐孝芬, 刘玉章, 向问陶 , 等. 渤海sz36-1油藏深部调剖剂研究与应用[J]. 石油勘探与开发, 2005,32(6):109-112.
[3]	张洪, 李彪, 王锦林 . 渤海JZ9-3油田二元复合驱效果分析[J]. 中国洗涤用品工业, 2014,( 5):43-45. doi: 10.3969/j.issn.1672-2701.2014.05.012
[4]	X G Lu, W Wang, R J Wang. The performance characteristics of Cr ³+ polymer gel and its application analysis in Bohai oilfield[C]// paper SPE-130382-MS presented at the International Oil and Gas Conference and Exhibition in China, 8-10 June 2010, Beijing, China.
[5]	卢祥国, 高振环, 闫文华 . 人造岩心渗透率影响因素试验研究[J]. 大庆石油地质与开发, 1994,13(4):53-55.
[6]	卢祥国, 宋合龙, 王景盛 , 等. 石英砂环氧树脂胶结非均质模型制作方法:中国,ZL200510063665.8[P]. 2005-09.
[7]	曹功泽, 侯吉瑞, 岳湘安 , 等. 改性淀粉-丙烯酰胺接枝共聚调堵剂的动态成胶性能[J]. 油气地质与采收率, 2008,15(5):72-74. doi: 10.3969/j.issn.1009-9603.2008.05.021
[8]	卢祥国, 胡勇, 宋吉水 , 等. Al ³+交联聚合物分子结构及其识别方法 [J]. 石油学报, 2005,26(4):73-76. doi: 10.3321/j.issn:0253-2697.2005.04.015
[9]	卢祥国, 王伟 . Al ³+交联聚合物分子构型及其影响因素 [J]. 物理化学学报, 2006,22(5):631-634. doi: 10.3866/PKU.WHXB20060522
[10]	卢祥国, 王晓燕, 李强 , 等. 高温高矿化度条件下驱油剂中聚合物分子结构形态及其在中低渗油层中的渗流特性[J]. 化学学报, 2010,68(12):1229-1234.
[11]	李美蓉, 黄漫, 曲彩霞 , 等. 疏水缔合型和非疏水缔合型驱油聚合物的结构与溶液特征[J]. 中国石油大学学报(自然科学版), 2013,37(3):167-171. doi: 10.3969/j.issn.1673-5005.2013.00.030
[12]	赖南君, 叶仲斌, 周扬帆 , 等. 新型疏水缔合聚合物溶液性质及提高采收率研究[J]. 油气地质与采收率, 2005,12(2):63-65. doi: 10.3969/j.issn.1009-9603.2005.02.020
[13]	王用良, 郭拥军, 冯茹森 , 等. 环糊精包合作用对疏水缔合聚合物流变调节与应用[J]. 高分子通报, 2012,( 3):14-20.
[14]	舒政, 汤思斯, 叶仲斌 , 等. 分子间缔合作用对缔合聚合物溶液阻力系数与残余阻力系数的影响[J]. 油气地质与采收率, 2011,18(6):63-66.

水型	K⁺+Na⁺	Ca²⁺	Mg²⁺	CO₃^2-	HCO^3-	SO₄^2-	Cl^-	总矿化度
水源水	2 549.84	684	166	0	162	0.11	5 340	8 901.95
污水	1 908.4	111	37.3	0	696	0.39	3 100	5 853.09

方案编号	调驱剂类型	工作黏度/ （mPa·s）	含油饱和度,%	采收率,%
方案编号	调驱剂类型	工作黏度/ （mPa·s）	含油饱和度,%	水驱	最终	增幅
1-1	疏水缔合聚合物溶液	279.8	70.00	27.8	30.8	3.0
1-2	Cr³⁺聚合物凝胶	5.2	71.67	27.1	45.3	18.2
1-3	“高浓”聚合物溶液	18.8	68.75	26.8	42.1	15.3

实验方案	措施类型	含油饱和度,%	采收率,%
实验方案	措施类型	含油饱和度,%	聚驱后	后续措施后	增幅
2-1	凝胶整体段塞	71.67	45.3	65.1	19.8
2-2	凝胶与水交替注入	70.59	45.9	67.7	21.8
2-3	调剖+凝胶与水交替	71.20	44.6	73.4	28.8
2-4	解堵+调剖+凝胶与水交替	70.00	46.1	76.6	30.5

Study on oil increasing effect and mechanism of comprehensive treatment measures after polymer flooding: Taking LD10-1 oilfield in Bohai Oilfield as an example

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 14

Related Articles 10

Metrics

Comments

Recommended 0

[1]	FAN Xibin,PU Wanfen,SHAN Jiangtao,DU Daijun,QIN Jianhua,GAO Yang. Feasibility of enhanced oil recovery by CO₂ huff-n-puff in tight conglomerate reservoir [J]. Petroleum Reservoir Evaluation and Development, 2021, 11(6): 831-836.
[2]	HUANG Bo,LEI Lin,TANG Wenjia,XU Ningwei,XIONG Wei. Stimulation mechanism of self suspension proppant in sand-carrying fracturing by water [J]. Petroleum Reservoir Evaluation and Development, 2021, 11(3): 459-464.
[3]	ZHANG Xiaojing,LU Jun,ZHANG Zhuo,LIANG Limei,GUO Linlin. Research on multi-stage heterogeneous flooding based on polymer flooding [J]. Reservoir Evaluation and Development, 2020, 10(6): 90-95.
[4]	LI Xiaogang,SHU Dongkun,ZHANG Ping,YANG Zhaozhong. Physical simulation of proppant transportation in artificial fractures of coal seam [J]. Reservoir Evaluation and Development, 2020, 10(4): 39-44.
[5]	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.
[6]	ZHANG Yunbao,LU Xiangguo,LIU Yigang,LI Yanyue,CAO Weijia,BAO Wenbo. Technical index evaluation of transport ability of profile control and displacement agents [J]. Reservoir Evaluation and Development, 2020, 10(3): 96-103.
[7]	Zhang Yunbao,Xu Guorui,Zou Jian,Wang Nan,Jia Yongkang,Ge Song,Liu Jinxiang. Experimental study on water plugging effect and influence factors of three phase foam system [J]. Reservoir Evaluation and Development, 2019, 9(2): 44-49.
[8]	Cao Weijia,Lu Xiangguo,Zhang Yunbao,Xu Guorui,Li Xiang. Study on water plugging effect and mechanism of starch graft copolymer gel [J]. Reservoir Evaluation and Development, 2019, 9(1): 44-50.
[9]	Luo Zhifeng,Yu Yang,Zhao Liqiang,Li Xiaogang,Zhao Xingdong. Multifactorial experiment of acid's fingering phenomenon in the multi-stage alternating injection of acid fracturing [J]. Reservoir Evaluation and Development, 2018, 8(4): 36-41.
[10]	He Tao,Wang Jian,Yu Heng,Xu Peng,Liu Xuwen. Mechanism study on multi-round profile control technique in fractured water flooding reservoir [J]. Reservoir Evaluation and Development, 2018, 8(2): 68-72.