新型等通径键槽式滑套压裂技术
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摘要
为解决常规投球式滑套压裂后不能实现全通径、后期储层改造困难的难题,研制了一种新型等通径键槽式滑套分段压裂技术,该技术主要由键槽式滑套和配套的专用打开工具组成,通过逐级投入专用打开工具打开滑套进行压裂施工,压裂结束后专用打开工具可返排出井口或在井内溶解,无需下钻即可实现管柱内的全通径,节省了施工时间和成本。地面实验和模拟入井试验结果表明,打开工具可顺利通过并打开滑套,工具的各项技术指标均满足设计要求,达到了现场应用条件,具有较好的适用性和应用前景,可为非常规油气藏的降本增效开发提供技术支撑。
A new fracturing with equal-diameter keyseat sliding-sleeve was developed to improve the problems of no equal-diameter and post reservoir stimulation limitation that result from conventional ball fracturing. The major composition of this new technology mainly consists of a keyseat sliding sleeve and a matching sliding-sleeve opener.The sliding-sleeve is opened by dropping special opener into wellbore stage by stage during fracturing operation.The dropped opener can be flowed back or dissolved within wellbore. Equal-dimeter inside the pipe string can be realized by this new fracturing technology without running in,which significantly save operation period and cost.Ground test and run-in simulation indicate that the opener can smoothly pass through and open the sliding sleeve.The corresponding technical indicators meet the design requirements and field application conditions,which shows a favorable applicability and application prospects and could provide certain technical reference for cost reducing and efficient development of unconventional hydrocarbon reservoir.
A new fracturing with equal-diameter keyseat sliding-sleeve was developed to improve the problems of no equal-diameter and post reservoir stimulation limitation that result from conventional ball fracturing. The major composition of this new technology mainly consists of a keyseat sliding sleeve and a matching sliding-sleeve opener.The sliding-sleeve is opened by dropping special opener into wellbore stage by stage during fracturing operation.The dropped opener can be flowed back or dissolved within wellbore. Equal-dimeter inside the pipe string can be realized by this new fracturing technology without running in,which significantly save operation period and cost.Ground test and run-in simulation indicate that the opener can smoothly pass through and open the sliding sleeve.The corresponding technical indicators meet the design requirements and field application conditions,which shows a favorable applicability and application prospects and could provide certain technical reference for cost reducing and efficient development of unconventional hydrocarbon reservoir.
引文
[1]王建军,于志强.水平井裸眼选择性分段压裂完井技术及工具[J].石油机械,2011,39(3):59-62.
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[5]付玉坤,喻成刚,尹强,等.国内外页岩气水平井分段压裂工具发展现状与趋势[J].石油钻采工艺,2017,39(4):514-520.
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[8]RYTLEWSKI G,LIMA J,DOLAN B.Novel technology replaces perforating and improves efficiency during multiple Layer fracturing operations[C].SPE107730,2007:1-7.
[9]RYTLEWSKI G L,COOK J M A study of fracture initiation pressures in cemented cased-hole wells without perforations[C].SPE100572,2006:1-10.
[10]王迁伟,何青,等.可打捞滑套分段压裂技术在红河油田的应用[J].石油钻采工艺,2013,35(3):78-79.
[11]朱玉杰,郭朝辉,等.套管固井分段压裂滑套关键技术分析[J].石油机械,2013,41(8):102-106.
[12]朱正喜,李永革.水平井裸眼完井分段压裂技术研究[J].石油矿场机械,2011,40(11):44-47.
[13]张恒,刘洋,李强,等.水平井裸眼分段压裂完井技术在苏里格气田的应用[J].石油钻探技术,2011,39(4):77-80.
[14]郭建春,赵志红,赵金洲,等.水平井投球分段压裂技术及现场应用[J].石油钻采工艺,2009,31(6):86-95.
[15]陈作,王振铎,曾华国.水平井分段压裂工艺技术现状及展望[J].天然气工业,2007,27(9):78-80.
[16]戴文潮,秦金立,薛占峰,等.一球多簇分段压裂滑套工具技术研究[J].石油钻探技术,2014,8(42):103-106.
[17]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.
[18]吕玮,张建,董建国,等.水平井固井预制滑套多级分段压裂完井技术[J].石油机械,2013,41(11):88-90.
[19]杨德锴,朱玉杰.可反复开关滑套分段压裂工具的研制与应用[J].石油机械,2015,43(6):88-91.
[20]黄占盈.水平井有限级次套管滑套固井工具研制与应用[J].石油矿场机械,2014,43(7):55-58.
[2]闫建文,张玉荣.水平井分段压裂可钻式投球滑套的研制与应用[J].石油机械,2012,40(12):21-24.
[3]莫里斯·杜索尔特,约翰·麦克力兰,蒋恕.大规模多级水力压裂技术在页岩油气藏开发中的应用[J].石油钻探技术,2011,39(3):6-16.
[4]罗懿,周勤.水平井分段压裂可开关滑套的研制与应用[J].特种油气藏,2013,20(4):131-134.
[5]付玉坤,喻成刚,尹强,等.国内外页岩气水平井分段压裂工具发展现状与趋势[J].石油钻采工艺,2017,39(4):514-520.
[6]CONSTANTINE J J.Selective production of horizontal openhole completions using ECP and sliding sleeve technology[C].SPE55618,1999:1-5.
[7]CHAUFFE S,PENCE N,HARRIS M.Frac sleeve designer for multi-zone cemented laterals[C].SPE174075,2015:1-13.
[8]RYTLEWSKI G,LIMA J,DOLAN B.Novel technology replaces perforating and improves efficiency during multiple Layer fracturing operations[C].SPE107730,2007:1-7.
[9]RYTLEWSKI G L,COOK J M A study of fracture initiation pressures in cemented cased-hole wells without perforations[C].SPE100572,2006:1-10.
[10]王迁伟,何青,等.可打捞滑套分段压裂技术在红河油田的应用[J].石油钻采工艺,2013,35(3):78-79.
[11]朱玉杰,郭朝辉,等.套管固井分段压裂滑套关键技术分析[J].石油机械,2013,41(8):102-106.
[12]朱正喜,李永革.水平井裸眼完井分段压裂技术研究[J].石油矿场机械,2011,40(11):44-47.
[13]张恒,刘洋,李强,等.水平井裸眼分段压裂完井技术在苏里格气田的应用[J].石油钻探技术,2011,39(4):77-80.
[14]郭建春,赵志红,赵金洲,等.水平井投球分段压裂技术及现场应用[J].石油钻采工艺,2009,31(6):86-95.
[15]陈作,王振铎,曾华国.水平井分段压裂工艺技术现状及展望[J].天然气工业,2007,27(9):78-80.
[16]戴文潮,秦金立,薛占峰,等.一球多簇分段压裂滑套工具技术研究[J].石油钻探技术,2014,8(42):103-106.
[17]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.
[18]吕玮,张建,董建国,等.水平井固井预制滑套多级分段压裂完井技术[J].石油机械,2013,41(11):88-90.
[19]杨德锴,朱玉杰.可反复开关滑套分段压裂工具的研制与应用[J].石油机械,2015,43(6):88-91.
[20]黄占盈.水平井有限级次套管滑套固井工具研制与应用[J].石油矿场机械,2014,43(7):55-58.