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Citation: JIANG Guan-Cheng, MA Xian-Ping, JI Chao-Feng, GAO Shu-Xin. Application of a Broad-spectrum Oil-film Temporary Plugging Agent to Reservoir Protection[J]. Chinese Journal of Applied Chemistry, ;2007, 24(6): 665-669. shu

Application of a Broad-spectrum Oil-film Temporary Plugging Agent to Reservoir Protection

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a College of Petroleum Engineering, China University of Petroleum, Dongying 257061;
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b Production Technology Research Institute, Dagang Oilfield, Tianjin;
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c Shengli Production Plant, Shengli Oil-field, Co.Ltd., Dongying

Corresponding author: JIANG Guan-Cheng,
Received Date: 29 June 2006
Available Online: 30 August 2006
Fund Project: 中国石油天然气集团公司重点项目(2001-9-14) (2001-9-14)

In view of the reservoir characters of severe heterogeneity,wide pore radius distribution,unpredictability of pore radius,and unrealized protection for whole hole section and bad protection effect by conventional shielding temporary plugging technology,we designed a broad spectrum oil film temporary plugging drilling and completion fluid system for reservoir protection.The in-house system evaluation and field application showed that an excellent oil film for shielding temporary plugging could be formed near borehole wall and both plugging and recovering rates of permeability reached more than 90% when the added amount of the broad spectrum oil film temporary plugging agent GPJ reached 3%;skin factor decreased by 7.4 to 10 times and production increased by 1.82 to 2.96 times compared with conventional technology.
- oil film,
- broad spectrum temporary plugging,
- reservoir protection,
- drilling and completion fluid,
- system design,
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