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.PDFVIP

第 39 卷 第 1 期 2017 年 1 月 石 油 钻 采 工 艺 OIL DRILLING PRODUCTION TECHNOLOGY Vol. 39 No. 1 Jan. 2017 文章编号：1000 – 7393（ 2017 ） 01 – 0066 – 05　　　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 陈现义 中石化华北油气分公司 引用格式：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. 摘要：在大牛地气田致密气藏开发中，常规水平井预置管柱分段压裂为其主体技术，但该技术存在分级滑套逐级缩径、不 能全部返出的分级球滞留井底的问题，不利于压后排水采气、地层测试及后期措施改造等作业。预置管柱与连续油管带底封压 裂相结合的完井压裂工艺可以达到全通径的工程技术要求，通过压裂材料优选和压裂施工参数优化，在 A 井进行了现场试验， 压后获得无阻流量 6.07×104 m3/d。同邻井应用效果对比来看，采用预置管柱完井与连续油管带底封分段压裂工艺施工效果明 显好于固井完井压裂效果，与采用常规预置管柱裸眼封隔器压裂工艺效果持平，可进一步推广应用。 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 中图分类号：TE257；TE357　　　文献标识码：B Preset string completion for horizontal wells and staged fracturing integrated technology of coiled tubing with bottom packer CHEN Xianyi SINOPEC North China Oil Gas Branch, Zhengzhou 450006, He’nan, China Citation: CHEN Xianyi. Preset string completion for horizontal wells and staged fracturing integrated technology of coiled tubing with bottom packer［J］. Oil Drilling Production Technology, 2017, 39(1): 66-70. 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 appli