| 摘要: |
| 介绍了端部脱砂压裂充填防砂机理，考虑压裂增产比和挡砂效果,研究了压裂充填防砂砾石尺寸的选择思路 和方法。以实现端部脱砂从而产生短而宽的充填裂缝为目的，对脱砂时间、脱砂浓度、加砂时间、加砂浓度以及施工 泵注程序等压裂防砂施工参数进行了优化设计。该套防砂工艺及设计方法在涩北气田应用13井次,防砂增产成功 率为85% ,防砂后产量平均增幅41.9% ,防砂效果良好，达到了防砂与增产的目的。 |
| 关键词: 端部脱砂 压裂防砂 砾石尺寸 涩北气田 优化设计 |
| DOI： |
| 分类号: |
| 基金项目:“十五”中油股份有限公司重点攻关课题 |
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| Systemic design for tip screen out frac-pack sand control and its application in Sebei Gasfield |
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ZHANG Qi-han1,2,ZHANG Shi-cheng1,HUANG Xiao-dong3
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(1. Faculty of Petroleum Engineering in China University of Petroleum,, Beijing 102249, China;2. Qinghai Oilfield Company, PetroChina, Dimkuang 736200, Gansu Province, China ;3. QHUi2-6/BZ25-1 Working Branch Company, China Offshore Petroleum，Tianjin 300450, China)
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| Abstract: |
| According to the basic mechanism of tip screen out (TSO) frac-pack sand control and considering the effect (rf well stimulation and sand control, the design optimization method for gravel size was developed. TSO is necessary for the creation of short and wide fracture for high permeable formation. In order to achieve TSO，a systemic design model was evolved， which involves sand-out time, sand-out concentration, sand-up time, sand-up concentration and corresponding pumping program. The model was applied to 13 wells in Sebei Gasfield and the results are very well with success percent of 85% and production rate increases 41. 9%. |
| Key words: tip screen out frac-pack sand control gravel size Sebei Gasfield design optimization |
