红河油田水平井置胶成坝技术

发布时间：2018-02-13 08:51

本文关键词： 水平井裂缝性油气藏置胶成坝堵水剂红河油田 HHP井　出处：《石油钻探技术》2017年02期 　论文类型：期刊论文

【摘要】：针对红河油田长8油藏储层致密、裂缝发育导致水平井注水井组水窜严重的问题,进行了水平井置胶成坝技术研究及现场试验。在模拟长8油藏的条件下,以堵剂成胶后的黏度为指标,优化了聚合物冻胶堵水剂的配方,评价了其抗老化性、耐盐性、抗剪切性、封堵性和抗冲刷性。结果表明,聚合物冻胶堵水剂的成胶时间4~10d可调,耐盐能力达1×105 mg/L,耐Ca2+能力达8 000mg/L,抗剪切及抗冲刷性能较好,封堵率大于95%。2井次的现场试验结果表明,红河油田水平井注水井组应用水平井置胶成坝技术后,受效井产油量升高,含水率降低,累计增油102t,含水率由99.0%降至92.3%,有效期超过了217d。研究与试验表明,采用水平井置胶成坝技术能满足封堵深部注水优势通道的要求,可以解决红河油田水平井注水井组水窜的问题。
[Abstract]:In view of the serious water channeling problem caused by tight reservoir and fracture development in Chang8 reservoir of Honghe Oilfield, the research and field test of horizontal well cementation and dam formation are carried out under the condition of simulating Chang 8 reservoir. The formulation of polymer gel water shutoff agent was optimized with the viscosity of plugging agent as the index, and its aging resistance, salt resistance, shear resistance, plugging property and scour resistance were evaluated. The results showed that the gelation time of polymer gel water shutoff agent could be adjusted for 410d. The field test results of 1 脳 10 ~ 5 mg 路L ~ (-1) salt tolerance, 8,000 mg / L Ca2 resistance, good shear and erosion resistance, and plugging rate greater than 95.2 times show that the oil production of effective wells increases after the application of horizontal well cementation and dam forming technology in horizontal wells of Honghe Oilfield. With the decrease of water cut, the cumulative increase of oil content is 102 t, the water cut is reduced from 99.0% to 92.3, and the validity period is more than 217 days. The research and test show that the technique of cementing and dam setting in horizontal wells can meet the requirements of sealing the dominant channel of deep water injection. The problem of water channeling in water injection wells in horizontal wells in Honghe Oilfield can be solved.
【作者单位】：中国石化华北油气分公司石油工程技术研究院;
【基金】：国家科技重大专项“低丰度致密低渗油气藏开发关键技术”(编号:2016ZX05048)资助
【分类号】：TE357.62

【相似文献】