[1]王 珊  曹砚锋  姜文卷  周定照  靳 勇  刘 尧.渤海某油田绒囊暂堵流体修井工艺[J].石油钻采工艺,2015,37(3):114-117.[doi:10.13639/j.odpt.2015.03.026]
 WANG Shan,CAO Yanfeng,JIANG Wenjuan,et al.Workover technology using fuzzy-ball temporary plugging fluid in Bohai Oilfield[J].Oil Drilling & Production Technology,2015,37(3):114-117.[doi:10.13639/j.odpt.2015.03.026]
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渤海某油田绒囊暂堵流体修井工艺
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《石油钻采工艺》[ISSN:1000-7393/CN:13-1072/TE]

卷:
37卷
期数:
2015年3期
页码:
114-117
栏目:
油气开采
出版日期:
2015-05-20

文章信息/Info

Title:
Workover technology using fuzzy-ball temporary plugging fluid in Bohai Oilfield
文章编号:
1000 – 7393( 2015 ) 03 – 0114 – 04
作者:
王 珊1  曹砚锋1  姜文卷2  周定照1  靳 勇1  刘 尧3
(1. 中海油研究总院,北京 100028;2. 中海油天津分公司辽东作业公司,天津 300452 3. 中国石油大学,北京 102249)
Author(s):
WANG Shan1 CAO Yanfeng1 JIANG Wenjuan2 ZHOU Dingzhao1 JIN Yong1 LIU Yao3
(1. Research Institute of CNOOC, Beijing 100028, China; 2. Liaodong Work Company of Tianjin branch, CNOOC,Tianjin 300452,China; 3. China University of Petroleum, Beijing 102249, China)
关键词:
修井封堵绒囊海上油田
Keywords:
workover plugging fuzzy-ball offshore oilfield
分类号:
TE358.4
DOI:
10.13639/j.odpt.2015.03.026
文献标志码:
B
摘要:
两口井试用证明绒囊暂堵流体可以解决渤海某油田修井过程中漏失问题,但其性能和施工工艺需要进一步优化。实验表明封堵深度0.1 m,无需挤入地层更多流体以形成更深封堵带即可实现有效封堵;绒囊暂堵流体封堵能力与密度无关, 塑性黏度20~30 mPa·s、动塑比0.7~1.1 Pa/(mPa·s)即可封堵低压漏失地层。绒囊暂堵流体封堵后用标准地层水试漏,承压能力达25.64 MPa,表明无需全井循环即可实现漏失地层封堵。陆上S181 井气井全井筒段塞先导试验成功后,在渤海某油田A 井储层段段塞封堵试用成功,表明绒囊暂堵流体在渤海某油田可以实施段塞封堵储层修井。
Abstract:
Trial use on two wells shows that the fuzzy-ball temporary plugging fluid can address the problem of lost circulation during workover in Bohai Oilfield, but its properties and operation process need to be further optimized. Experiment shows that the plugging depth is 0.1m, so effective sealing can be realized without injecting too much fluid into the formation in order to create a deeper plugging belt. The plugging capability of fuzzy-ball temporary plugging fluid has nothing to do with its density. The thief zone with low pressure can be plugged by such fluid with 20~30 mPa·s plastic viscosity and 0.7~1.1 Pa/(mPa·s) rate of dynamic shear force. Leak test was conducted using standard formation water after being plugged by fuzzy-ball temporary plugging fluid, the bearing capacity of the formation was up to 25.64 MPa, showing that the thief zone can be plugged without whole well circulation. After successful pilot test on whole well slug in onshore S181 Gaswell, the slug was trial used in reservoir section in Well A in Bohai Oilfield, indicating that the fuzzy-ball temporary plugging fluid can be used in workover operation by plugging the reservoir with the slug.

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更新日期/Last Update: 2015-06-23