红河油田水平井置胶成坝技术

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...

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Bibliographic Details
Published in石油钻探技术 Vol. 45; no. 2; pp. 81 - 86
Main Author 魏开鹏 杨欢 斯容 方群 刘学全
Format Journal Article
LanguageChinese
Published 中国石化华北油气分公司石油工程技术研究院,河南郑州,450006 2017
Subjects
HH37P13井
堵水剂
水平井
红河油田
置胶成坝
裂缝性油气藏
horizontal well
gelation
Honghe Oilfield
water-plugging agent
裂缝性油气藏
水平井
置胶成坝
堵水剂
fractured reservoirs
Well HH37P13
红河油田
HH37P13井
Online AccessGet full text
ISSN1001-0890
DOI10.11911/syztjs.201702013

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Summary: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。
Bibliography:horizontal well; fractured reservoirs; gelation; water-plugging agent; Honghe Oilfield; Well HH37P13
11-1763/TE
WEI Kaipeng, YANG Huan, SI Rong, FANG Qun, LIU Xuequan （Research Institute of Petroleum Engineering and Technology, North China Oil ＆ Gas Branch Company, Sinopec, Zhengzhou, Henan,450006, China）
Reservoirs in the Chang-8 Reservoir in the Honghe Oilfield are characterized by tight forma- tions and well-developed natural fractures that give rise to water channeling during water injection. Under such circumstances study and field tests have been conducted to ameliorate the situation by using gelation technologies in horizontal water injectors with severe water channeling. Taking viscosities of plugging gel as evaluation criteria, the formula of polymer gel water-plugging agents was optimized and their aging, salt-resistance, shear resistance, plugging and anti-flushing performances were evaluated under simulated conditions of the formation. Test results showed that polymer gel water-plugging agents have a
ISSN:1001-0890
DOI:10.11911/syztjs.201702013