海上油田大斜度井缆控智能分层注聚技术研究及应用

doi:10.13809/j.cnki.cn32-1825/te.2024.01.018

摘要/Abstract

摘要：

海上油田单管分层测调注聚工艺不能满足井斜大于60°的井况，同时测调时需要钢丝作业配合，平均单井测调用时6 h，测调效率低，无法真正意义上实现井下温度、压力、流量的实时监测与注入量调整。在介绍海上油田缆控智能注聚新技术原理、适用性与特点的基础上，研发出缆控智能注聚工作筒、大流量下高保黏通道及地面控制器等关键配套工具。实验表明，工作筒形成节流压差小于4 MPa，保黏率大于85%，性能较好。现场应用表明，缆控智能注聚技术在大斜度井的分层注聚调试过程中，可实时反馈流量、压力、温度等监测数据，提高注聚井测调效率和油藏配注达标率，为海上油田聚驱提高采收率提供了有效的技术支撑。

关键词: 海上油田, 分层注聚, 测调效率, 大斜度, 监测

Abstract:

The single-tubing layered testing and adjustment injection process for offshore oilfields cannot meet the conditions of wells with inclinations greater than 60°. At the same time, steel wire operation is required during logging, and a single well takes six hours on average. The logging efficiency is low, and it cannot truly achieve the real-time monitoring of downhole temperature, pressure, flow rate, and injection volume adjustment. On the basis of introducing the principle, applicability, and characteristics of intelligent polymer injection technology with cable control in offshore oil fields, key supporting tools such as cable control intelligent polymer injection pipe, high viscosity maintaining channel under large flow rate, and ground controller have been developed. Experiments have shown that the pipe has better performance with a differential throttle pressure of less than 4 MPa and a viscosity retention rate of more than 85%. Field applications demonstrated that the cable-controlled smart polymer injection technology can provide real-time feedback on flow rate, pressure, temperature, and other monitoring data during the layered polymer injection debugging process in high-inclination wells. This improves the efficiency of polymer injection well testing and adjustment and the standardization rate of reservoir allocation, offering effective technical support for enhancing the recovery factor in offshore oilfield polymer flooding operations.

Key words: offshore oil fields, stratified polymer injection, measuring and adjusting efficiency, large slope, monitoring

中图分类号:

TE357

张乐, 刘长龙, 寇磊, 陈征, 张璐, 徐元德, 王胜, 薛德栋. 海上油田大斜度井缆控智能分层注聚技术研究及应用[J]. 油气藏评价与开发, 2024, 14(1): 133-137.

ZHANG Le, LIU Changlong, KOU Lei, CHEN Zheng, ZHANG Lu, XU Yuande, WANG Sheng, XUE Dedong. Research and application of intelligent polymer injection technology with cable control for high angle wells in offshore oilfield[J]. Petroleum Reservoir Evaluation and Development, 2024, 14(1): 133-137.

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参考文献 20

[1]	张建, 张宏录. 苏北高压差双管分层注水工艺技术研究及应用[J]. 油气藏评价与开发, 2017, 7(2): 74-77.
	ZHANG Jian, ZHANG Honglu. Research on dual string stratified injection technology with high differential pressure and its application in northern Jiangsu oilfield[J]. Reservoir Evaluation and Development, 2017, 7(2): 74-77.
[2]	张宏录, 张庆华, 李艺玲. 苏北油田分层注水工艺技术现状及对策[J]. 油气藏评价与开发, 2011, 1(3): 50-53.
	ZHANG Honglu, ZHANG Qinghua, LI Yiling. Current situation of layered water injection technology in northern Jiangsu oilfield and the countermeasures[J]. Reservoir Evaluation and Development, 2011, 1(3): 50-53.
[3]	石建设, 顾春元, 姜建胜, 等. 定向井分层注水工艺研究与应用[J]. 石油钻采工艺, 2000, 22(1): 46-49.
	SHI Jianshe, GU Chunyuan, JIANG Jiansheng, et al. Research and application of separate layer water injection technology in deviated wells[J]. Oil Drilling & Production Technology, 2000, 22(1): 46-49.
[4]	王延峰, 邱金平, 杨丽霞. 分层注聚井智能测调技术[J]. 油气井测试, 2021, 30(4): 50-55.
	WANG Yanfeng, QIU Jinping, YANG Lixia. Intelligent regulating and testing technology for layered polymer flooding wells[J]. Well Testing, 2021, 30(4): 50-55.
[5]	王磊. 同心双管分层注聚管柱的研制与应用[J]. 内江科技, 2018, 39(2): 24.
	WANG Lei. Development and application of concentric double tube layered polymer injection string[J]. Nei Jiang Science & Technology, 2018, 39(2): 24.
[6]	金振东, 佟音, 王凤山, 等. 大庆油田缆控智能分注技术工艺优化[J]. 石油钻采工艺, 2022, 44(5): 600-603.
	JIN Zhendong, TONG Yin, WANG Fengshan, et al. Optimization of cable-controlled intelligent separate-layer water injection technology in Daqing Oilfield[J]. Oil Drilling & Production Technology, 2022, 44(5): 600-603.
[7]	乔志学. 缆控智能分注技术现场试验与应用[J]. 石油石化节能, 2023, 13(3): 18-23.
	QIAO Zhixue. Field test and application of cable intelligent sub-injection technology[J]. Energy Conservation in Petroleum &Petrochemical Industry, 2023, 13(3): 18-23.
[8]	王凤山, 田荃, 王思淇, 等. 大庆油田分层注水工艺技术现状与发展趋势[J]. 采油工程, 2022(3): 1-6.
	WANG Fengshan, TIAN Quan, WANG Siqi, et al. Present situation and development trend of separate layer water injection technology in Daqing Oilfield[J]. Oil Production Engineering, 2022(3): 1-6.
[9]	郭颖, 张玉坤, 汪丽丽, 等. 缆控智能分注技术研究及应用[J]. 采油工程, 2022(3): 14-18.
	GUO Ying, ZHANG Yukun, WANG Lili, et al. Research and application of cable-controlled intelligent separate layer water injection technology[J]. Oil Production Engineering, 2022(3): 14-18.
[10]	黄泽超, 沙吉乐, 罗昌华, 等. 海上油田小井眼注聚井分层测调技术研究及应用[J]. 仪器仪表用户, 2022, 29 (4): 41-44.
	HUANG Zechao, SHA Jile, LUO Changhua, et al. Research and application of layered testing and adjustment technology for polymer injection of small well-bore in offshore oilfields[J]. Instrumentation, 2022, 29(4): 41-44.
[11]	咸国旗, 门海英, 王鹏, 等. 同心可调配聚器的研制与应用[J]. 石油机械, 2019, 45(3): 98-101.
	XIAN Guoqi, MEN Haiying, WANG Peng, et al. Development and application of concentric adjustable polymer injector[J]. China Petroleum Machinery, 2019, 45(3): 98-101.
[12]	任刚. 连续调节式同心分层注入聚合物技术研究[J]. 采油工程, 2019(4): 44-49.
	REN Gang. Research on the method of improving motor driving stability of intelligent production mandrel[J]. Oil Production Engineering, 2019(4): 44-49.
[13]	刘义刚, 孟祥海, 张志熊, 等. 海上油田小井眼分注井测调一体化工艺研究[J]. 石油机械, 2021, 49(3): 90-94.
	LIU Yigang, MENG Xianghai, ZHANG Zhixiong, et al. Study on the integrated measurement and adjustment technology for slim hole separate injection wells in offshore oilfield[J]. China Petroleum Machinery, 2021, 49(3): 90-94.
[14]	李兴, 石太军, 徐斌, 等. 小井眼分注井测调一体化技术研究应用[J]. 复杂油气藏, 2019, 12(2): 81-83.
	LI Xing, SHI Taijun, XU Bin, et al. Research and application of integrated logging and adjustment technology in slim-hole injection well[J]. Complex Hydrocarbon Reservoirs, 2019, 12(2): 81-83.
[15]	赵仲浩, 黄新春, 张成富, 等. 海上油田分层采油井缆控对接式智能配产新技术[J]. 中国海上油气, 2022, 34(4): 213-217.
	ZHAO Zhonghao, HUANG Xinchun, ZHANG Chengfu, et al. A cable-controolled docking intelligent allocation technology for zonal production wells in offshore oilfields[J]. China Offshore Oil and Gas, 2022, 34(4): 213-217.
[16]	金振东. 可投捞式缆控智能分注工艺及装置分析[J]. 石油矿场机械, 2022, 51(4): 69-75.
	JIN Zhendong. Analysis of salvageable cable-controlled intelligent water injection process and device[J]. Oil Field Equipment, 2022, 51(4): 69-75.
[17]	任博文, 彭梦梦, 张祥, 等. 井下分层注聚流量测量系统设计[J]. 电子技术, 2022, 51(3): 61-63.
	REN Bowen, PENG Mengmeng, ZHANG Xiang, et al. Design of downhole layered polymer injection flow measurement system[J]. Electronic Technology, 2022, 51(3): 61-63.
[18]	张激扬, 刘仁勇, 郭威, 等. 缆控智能分层采油工艺技术研究与应用[J]. 石油矿场机械, 2022, 51(5): 35-41.
	ZHANG Jiyang, LIU Renyong, GUO Wei, et al. The research and application of cable controlled intelligent stratified oil recovery technology[J]. Oil Field Equipment, 2022, 51(5): 35-41.
[19]	姜燕, 罗洪林, 张旭, 等. 管外缆控式智能分注技术[J]. 石油钻采工艺, 2021, 43(6): 803-810.
	JIANG Yan, LUO Honglin, ZHANG Xu, et al. External cable-controlled intelligent separate-layer water injection technology[J]. Oil Drilling & Production Technology, 2021, 43(6): 803-810.
[20]	罗昌华, 王若璇, 王柳, 等. 渤海油田小井眼防砂注水井分层测调技术研究与应用[J]. 机械工程师, 2019(5): 69-70.
	LUO Changhua, WANG Ruoxuan, WANG Liu, et al. Research and application of separated layer testing & adjusting for sandcontrol water well with small wellbore hole in Bohai Oilfield[J]. Mechanical Engineer, 2019(5): 69-70.

工具结构	流量调节机构	流量调节扭矩/（N·m）	流量计量机构	参数采集机构
注水工具	调节水嘴开度改变通道大小	12	超声或差压流量计	普通A/D芯片参数由跳变现象
注聚工具	改变内外摩阻管间隙通道大小不变	36	电磁流量计	∑-?量化机制参数检测更稳定

层位	配注量/（m³/d）	实际注入量/（m³/d）	水嘴开度/%
第1层	350	354	45
第2层	125	122	38
第3层	60	61	30