[1]李永寿,鄢宇杰,赵 兵.缝洞型碳酸盐岩油藏重复改造工艺研究与应用[J].复杂油气藏,2019,12(01):86.[doi:10.16181/j.cnki.fzyqc.2019.01.018]
 LI Yongshou,YAN Yujie,ZHAO Bing.Research and application of refracturing technology infractured carbonate reservoir[J].Complex Hydrocarbon Reservoirs,2019,12(01):86.[doi:10.16181/j.cnki.fzyqc.2019.01.018]
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缝洞型碳酸盐岩油藏重复改造工艺研究与应用()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
12
期数:
2019年01期
页码:
86
栏目:
油气工程
出版日期:
2019-03-25

文章信息/Info

Title:
Research and application of refracturing technology infractured carbonate reservoir
作者:
李永寿鄢宇杰赵 兵
中国石化西北油田分公司石油工程技术研究院,新疆 乌鲁木齐 830011
Author(s):
LI Yongshou YAN Yujie ZHAO Bing
Petroleum Engineering Technology Research Institute of Northwest Oilfield Company,SINOPEC,Urumqi 830011,China
关键词:
塔河油田 碳酸盐岩 重复改造 暂堵转向技术 深部通道改善技术
Keywords:
Tahe Oilfield carbonate rocks acid refracturing treatment temporary plug and diversion fracturing deep channel improvement technology
分类号:
TE357
DOI:
10.16181/j.cnki.fzyqc.2019.01.018
文献标志码:
A
摘要:
塔河油田开发进程步入提高采收率阶段。建立高导流能力剩余油通道,沟通井周未动用储集体,实现措施井高效重复改造,成为老区剩余油挖潜的当务之急。针对此难题,通过人工裂缝暂堵转向实验,优选了重复酸压工作液及暂堵材料配方,优化了暂堵转向酸压工艺及参数,实现了非主应力方向新缝洞体的沟通动用; 通过对酸液类型、浓度及其他参数的优化,形成了深部通道改善技术,实现了修复井筒与远端缝洞体通道、提高采收率的目标。截至目前,矿场试验38井次,成功率98%,累计增油20.7×104t,投入产出比达到1:3.1,较常规重复改造工艺降本35%,真正达到了低成本高产出的目的。
Abstract:
The development of Tahe Oilfield has entered the stage of enhanced oil recovery. So establishing the high conductivity remaining oil passages with the undeveloped reservoirs around oil wells becomes a top priority for effectively taping remaining oil. In order to solve this problem, based on experiments for temporary plugging and turning of artificial fracture, after optimizing the acid fracturing fluid, the temporary plugging agent and the technology and parameters of acid fracturing, and a new reservoir body in non-principal stress direction was communicated. Through optimizing the type and concentration of acid fluid and other parameters, a deep channel improvement technology has been formed, which achieves the goal of repairing channels between wellbore and far-end fracture-cave body and enhanced oil recovery. Up to now, 38 well tests have been conducted. The test results indicated that there was a success rate of 98%, a cumulative oil increase of 20.7×104 t, an input-output ratio of 1:3.1, and a cost reduction of 35% compared with the conventional stimulation process. And then a real goal of low cost and high output has been achieved.

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备注/Memo

备注/Memo:
收稿日期:2018-09-30; 改回日期:2018-11-26。第一
作者简介:李永寿(1985—),硕士,从事储层改造工艺技术相关工作研究。E-mail:lyshcg@foxmail.com。
更新日期/Last Update: 2019-03-25