石油钻采工艺2017，Vol.39Issue(1)：66-70,5.DOI:10.13639/j.odpt.2017.01.013
水平井预置管柱完井与连续油管带底封分段压裂一体化技术
Preset string completion for horizontal wells and staged fracturing integrated technology of coiled tubing with bottom packer
摘要
Abstract
The conventional horizontal well staged fracturing with preset pipe string is the main technology used for the devel-opment of tight gas reservoirs in Daniudi Gasfield. During its application, however, stepped sliding sleeves are faced with stepwise reducing and the grading balls which cannot be returned totally are detained at the bottom hole. And these problems are not favorable for drainage gas recovery after fracturing, formation testing and later stimulation. The completion and fracturing technology which com-bines the preset pipe string completion and the coiled tubing fracturing with bottom packer together can meet the engineering technology requirements of full bore. After fracturing material selection and fracturing operation parameter optimization, this technology was tested on site in Well A, whose absolute open flow after fracturing is 6.07×104 m3/d. The test results were compared with the application results of its neighboring wells. It is indicated that preset string completion and staged fracturing with coiled tubing and bottom packer is much better than the cementing, completion and fracturing, and basically the same as the conventional fracturing technology with preset pipe string and open hole packer. Therefore, it can be popularized further.关键词
大牛地气田/水平井/全通径/预置管柱完井/连续油管/分段压裂Key words
Daniudi Gasfield/horizontal well/full bore/preset string completion/coiled tubing/staged fracturing分类
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陈现义..水平井预置管柱完井与连续油管带底封分段压裂一体化技术[J].石油钻采工艺,2017,39(1):66-70,5.
