过球式水力喷射器研制及在低渗透油田应用
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摘要
为提高水力喷射拖动压裂工艺的施工效率,研制了过球式水力喷射器。该喷射器采用弹性球座机构,解决了密封、耐磨、强度等问题,能够可靠控制喷射器滑套开启,并具有过球功能,实现了一球开启多滑套的目标。由过球式喷射器与滑套封隔器组成的多级水力喷射管柱,与拖动分段压裂工艺相结合,在长庆油田应用20余井,最高一趟管柱完成10段分段压裂施工,是单级水力喷射拖动压裂管柱施工段数的2~3倍,有效提高了油田水力喷射压裂施工效率。
To enhance the efficiency of hydro-jet staged fracturing technology by dragging string from one stage to next stage,the passing ball multi-stage hydro-jet tool is necessary to be researched.Compared with usual multi-stage Hydro-jet tool,the most important of this new tool is that it can open several sleeves by only one same size ball.By designing elastic ball-seat structure,the sealing ability,weariness and tenacity have been solved successfully.Therefore,the function of opening several sleeves by one same ball can be achieved.What's more,a new multistaged hydro-jet separate fracturing string is composed by the passing ball multi-sleeve hydro-jet tool and packer controlled by sleeve.And this new string has been used in about 20 horizontal wells.In a well,ten layers have been operated with only one trip,which is two or three times than the common single hydraulic jetting fracturing string.So it can achieve high efficiency operation by hydro-jet fracturing technology and is very promising.
To enhance the efficiency of hydro-jet staged fracturing technology by dragging string from one stage to next stage,the passing ball multi-stage hydro-jet tool is necessary to be researched.Compared with usual multi-stage Hydro-jet tool,the most important of this new tool is that it can open several sleeves by only one same size ball.By designing elastic ball-seat structure,the sealing ability,weariness and tenacity have been solved successfully.Therefore,the function of opening several sleeves by one same ball can be achieved.What's more,a new multistaged hydro-jet separate fracturing string is composed by the passing ball multi-sleeve hydro-jet tool and packer controlled by sleeve.And this new string has been used in about 20 horizontal wells.In a well,ten layers have been operated with only one trip,which is two or three times than the common single hydraulic jetting fracturing string.So it can achieve high efficiency operation by hydro-jet fracturing technology and is very promising.
引文
[1]贾长贵,李奎为,刘敏慧.水力喷射压裂技术[J].油气田地面工程,2011(1):89-89.
[2]Surjaatm ad J B.水力喷射压裂可提高裸眼水平井的完井效率[J].国外油田工程,2004(7):13-14.
[3]崔会贺,姚光宇,徐胜强.水力喷射定向射孔与压裂联作技术在水平井中的应用[J].特种油气藏,2007(6):85-87.
[4]邹皓.水力喷射压裂关键技术分析[J].石油机械,2010,38(6):69-72.
[5]北京众博达石油科技有限公司,西安石油大学,中国石油大学(北京),西安海智机电设备有限公司.一种耐冲蚀喷射器:201520077208.3[P].2015-02-03.
[6]宝鸡市赛孚石油机械有限公司.高可靠性水力喷射器:201420179037.0[P].2014-04-14.
[7]中国石油天然气股份有限公司.一种抗硫滑喷射器:201120345479.4[P].2011-09-15.
[8]冯长青,张华光,赵粉霞,等.分层压裂滑套与密封球受力分析研究[J].石油机械,2013,41,(2):75-78.
[2]Surjaatm ad J B.水力喷射压裂可提高裸眼水平井的完井效率[J].国外油田工程,2004(7):13-14.
[3]崔会贺,姚光宇,徐胜强.水力喷射定向射孔与压裂联作技术在水平井中的应用[J].特种油气藏,2007(6):85-87.
[4]邹皓.水力喷射压裂关键技术分析[J].石油机械,2010,38(6):69-72.
[5]北京众博达石油科技有限公司,西安石油大学,中国石油大学(北京),西安海智机电设备有限公司.一种耐冲蚀喷射器:201520077208.3[P].2015-02-03.
[6]宝鸡市赛孚石油机械有限公司.高可靠性水力喷射器:201420179037.0[P].2014-04-14.
[7]中国石油天然气股份有限公司.一种抗硫滑喷射器:201120345479.4[P].2011-09-15.
[8]冯长青,张华光,赵粉霞,等.分层压裂滑套与密封球受力分析研究[J].石油机械,2013,41,(2):75-78.