Novel acid soluble consolidating material to overcome lost circulation problems in reservoir intervals

被引：0
|
作者：
Feng, J. [1 ,2 ]
Zheng, L. H. [1 ]
Li, L. [2 ]
Hao, H. J. [2 ]
Zhang, C. [3 ]
Zhang, Z. [4 ]
机构：
[1] China Univ Petr, Coll Petr Engn, Beijing 102249, Peoples R China
[2] CNPC Engn Technol R&D Co Ltd, Beijing 102206, Peoples R China
[3] PetroChina Qinghai Oilfield Co, Dunhuang 736202, Peoples R China
[4] Petrochina Tarim Oilfield Co, Korla 841000, Peoples R China
来源：
6TH GLOBAL CONFERENCE ON POLYMER AND COMPOSITE MATERIALS (PCM 2019) | 2019年 / 634卷
关键词：
NANOMATERIALS;
D O I：
10.1088/1757-899X/634/1/012008
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Based on lost circulation problem, a new kind of acid soluble consolidating material was developed, and the sealing characteristics were evaluated. This acid soluble consolidating material had the characteristics of rapid water loss, high filter-cake consistency and high acid dissolution. The results indicated that the obtained curing slug had good stability at high temperature, and the sealing strength of curing slug was as high as 10 MPa. High temperature and high pressure (HTHP) sealing analog experiment indicated that the maximum pressure-bearing capacity of plugged zone was up to 18.5 MPa. Using this consolidating material to seal the shale is a very powerful and economical approach to address lost circulation problem in troublesome thief zones.
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页数：6
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