胜利油田管内分段压裂技术及应用
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摘要
胜利油田致密砂岩储量丰富,是低渗透油藏上产的主要阵地,但由于其渗透率、孔隙度、应力等在纵向上存在较大差异,前期采用笼统压裂改造效果差,因此逐渐发展了封隔器不动管柱分段压裂、水力喷射分段压裂、连续油管喷砂射孔拖动封隔器分段压裂、泵送桥塞分段压裂等管内分段压裂技术,并进行了现场应用,取得了较好的效果。为致密砂岩油藏的经济高效动用和规模化开发提供了强有力的技术手段。
Shengli Oilfield has abundant dense sandstone reservoirs.Dense sandstone reservoirs are the major produce position.But dense sandstone reservoirs have different permeability,porosity,stress in vertical orientation and lead to worse effect when using general fracture method early stage.Recently,many staged fracturing technology have been developed,such as packer staged fracturing technology,hydraulic jetting staged fracturing technology,coiled tubing pulling packer staged fracturing technology and pumping bridge plug staged fracturing technology.These techniques acquire preferable effect and provide exploitation methods for dense sandstone reservoirs.
Shengli Oilfield has abundant dense sandstone reservoirs.Dense sandstone reservoirs are the major produce position.But dense sandstone reservoirs have different permeability,porosity,stress in vertical orientation and lead to worse effect when using general fracture method early stage.Recently,many staged fracturing technology have been developed,such as packer staged fracturing technology,hydraulic jetting staged fracturing technology,coiled tubing pulling packer staged fracturing technology and pumping bridge plug staged fracturing technology.These techniques acquire preferable effect and provide exploitation methods for dense sandstone reservoirs.
引文
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[3]曾雨辰,杨保军.涪HF-1井泵送易钻桥塞分段大型压裂技术[J].石油钻采工艺,2012,34(5):75-79.
[4]荣莽,罗君.页岩气藏水平井分段压裂管柱技术探讨[J].石油机械,2010,38(9):65-69.
[5]何祖清,彭汉修,郭朝辉,等.可钻泵送桥塞研制与试验[J].石油机械,2012,40(3):20-23.
[6]靳宝军,邢景宝,郑锋辉,等.连续油管喷砂射孔环空压裂工艺在大牛地气田的应用[J].钻采工艺,2011,34(2):39-41.
[7]盛海涛.页岩气压裂增产技术的研究与探讨[J].科技信息,2013,22(2):12-16.
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