石油与天然气地质 ›› 2010, Vol. 31 ›› Issue (1): 28-32.doi: 10.11743/ogg20100104

• 塔河油田 • 上一篇    下一篇

塔河油田碳酸盐岩缝洞型油藏多井缝洞单元注水开发方式

荣元帅, 刘学利, 杨敏   

  1. 中国石油化工股份有限公司, 西北油田分公司, 石油勘探开发研究院, 新疆, 乌鲁木齐, 830011
  • 收稿日期:2009-09-27 出版日期:2010-02-25 发布日期:2012-01-16
  • 基金项目:

    国家重点基础研究发展计划(973计划)项目“碳酸盐岩缝洞型油藏开发基础研究”(2006CB202400)

A discussion on water flooding in the multi-well fractured-vuggy units of carbonate reservoirs in Tahe oilfield

Rong Yuanshuai, Liu Xueli, Yang Min   

  1. Petroleum Exploration & Production Research Institute of SINOPEC Northwest Company, Urumqi, Xinjiang 830011, China
  • Received:2009-09-27 Online:2010-02-25 Published:2012-01-16

PDF (PC)

493

被引次数

85

摘要：

利用油藏数值模拟手段,通过对前期试注阶段注水效果的系统评价,探讨了塔河油田碳酸盐岩缝洞型油藏多井缝洞单元的注水开发方式,包括注水时机、注采井网、注采井的储集体类型、注采井高低部位等。研究结果表明,碳酸盐岩缝洞型油藏不同类型储集体应在不同地层压力保持水平下注水,溶洞型储集体压力水平为80%～90%,孔洞型储集体压力水平在90%以前,裂缝型储集体要更早开始注水效果较好;注采井网应采用不规则面积井网;注采井储集体类型和高低部位以缝注洞采、缝注孔洞采、低注高采较好。

关键词: 注水开发, 开发效果, 多井缝洞单元, 缝洞型油藏, 塔河油田

Abstract:

Based on a systematic evaluation of the effects of the early-stage water injection test,we studied water flooding schemes for multi-well fracture-cavern units of carbonate reservoirs in the Tahe oilfield through numerical stimulation.These schemes include the optimal timing of water injection,injection-production well network,the types of reservoirs and the relative vertical locations of injection and producing intervals,etc.For a specific type of reservoir,the optimal time to begin water injection should be determined according to its pressure maintenance levels.For cavernous reservoirs,water injection should begin at a pressure maintenance level in the range of 80% to 90%;for vuggy reservoirs,it should begin at a pressure maintenance level over 90%;while for fractured reservoirs,it should begin at a higher pressure maintenance level.An areal well pattern is preferable in water flooding.It is favorable to inject water in fractured reservoir interval and produce oil from cavernous reservoir intervals or from vuggy reservoir intervals,or to inject water in lower reservoir intervals and produce oil from higher reservoir intervals.

Key words: water flooding, development effect, multi-well fracture-cavern unit, fractured-vuggy reservoir, Tahe oilfield

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