国内热采井高温胶筒发展现状
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摘要
稠油热采井常通过注蒸汽的方式降低原油黏度,热采封隔器胶筒的材质以聚四氟改良复合材料为主,但该类胶筒只能在第1轮次注汽中密封较好,实现均匀注汽,在后续轮次仅能起到挡砂的作用;石墨硅基复合胶筒可以在多轮次注汽中密封良好,可多次在冷热交替环境下使用,但成本过高,推广较难。通过增加石墨和预紧力,设计了2种成本较低的新方案,便于后续研究。
In heavy oil thermal recovery wells,the viscosity of crude oil is often reduced by steam injection.The material of thermal packer rubber cylinder is mainly PTFE modified composite material,which can only be sealed well in the first round of steam injection to achieve uniform steam injection and only can prevent sand in the subsequent rounds.The graphite-silicon composite rubber cylinder can be sealed well in multiple rounds of steam injection and can be cooled many times however it is difficult to be promoted due to its high cost in temperature alternating environment.Two new schemes with low cost were designed by increasing graphite and the preloading force for the follow-up study.
In heavy oil thermal recovery wells,the viscosity of crude oil is often reduced by steam injection.The material of thermal packer rubber cylinder is mainly PTFE modified composite material,which can only be sealed well in the first round of steam injection to achieve uniform steam injection and only can prevent sand in the subsequent rounds.The graphite-silicon composite rubber cylinder can be sealed well in multiple rounds of steam injection and can be cooled many times however it is difficult to be promoted due to its high cost in temperature alternating environment.Two new schemes with low cost were designed by increasing graphite and the preloading force for the follow-up study.
引文
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[2]刘群.稠油热采技术现状及发展趋势[J].化工管理,2015(12):181.
[3]刘佳.概论稠油热采技术的现状及发展前景[J].工艺管理,2015(12):181.
[4]李敬松,孙永涛,宫汝祥,等.海上稠油水平井多元热流体吞吐开采特征分析[J].石油天然气学报,2014,36(4):135-136.
[5]潘广明,吴金涛,张彩旗,等.海上稠油油藏弱凝胶驱辅助吞吐增油效果研究[J].特种油气藏,2017,24(6):134-137.
[6]崔政,张建民,蔡晖,等.渤海油田多元热流体吞吐技术的现场试验[J].长江大学学报,2014,11(32):115-117.
[7]张钧.海上油气田完井手册[M].北京:石油工业出版社,1998.
[8]郝金克.水平井完井技术及其应用[M].青岛:中国石油大学出版社:2014:44-45.
[9]王洪林,李啸南,段建辉,等.热敏封隔器的最佳受力设计[J].特种油气藏,2007,14(5):91-93.
[10]顾启林,孙永涛,马增华,等.RX361-210型热敏封隔器的研制与试验[J].石油机械,2017,45(8):50-52.
[11]顾启林,孙永涛,李啸南,等.X441-210型热采封隔器的研制与室内试验[J].石油机械,2017,45(2):112-113.