第39参第1期 2017年1月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017）01006605
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
中石化华施油气分公司
Vol. 39 No. 1
Jan.2017
引用格式：陈现义.水平井预置管柱完并与连续油管带底封分段压裂一体化技术[J].石油钻采工艺,2017,391)：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，但该技术存在分级清套逐级缩径、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对压裂相结合的究并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并进行了现场试验，压后获得无阻流量6.07×10°md。同邻并应用效累对比来看，采用预置管程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并完并压聚效累，与采用常规预置管程裸眼对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
Presetstringcompletionforhorizontalwellsandstagedfracturing
integrated technologyof coiled tubingwithbottompacker
CHEN Xianyi
SINOPEC North China Oil & Gas Branch, Zhtengzhou 450006, He'nan, Chind
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 6.07×10° m'/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
Key words: Daniudi Gasfield; horizontal well; full bore; preset string completion; coiled tubing; staged fracturing
大牛地气田位于鄂尔多斯盆地北部，主要开发层位为上古石盒子组和山西组。储层平均压力系数
为0.84~0.92，平均孔隙度为7.96%~8.69%，渗透率为 0.41~0.58mD，属于低压、特低孔、特低渗储层【14]
第一作者：陈现义（1972-),2004年半业于中国石油大学（华东)石沟工程专业，现从事非常规完并技术及压裂工艺研究应用与管理工作
通讯地址：(450006)河南省郑州市货海西路199号华北石沟局1212宝。电话：0371-68629213。E-mail：hbfgscxy@163.com
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