[1]汤妍冰  巫波  周洪涛.缝洞型油藏不同控因剩余油分布及开发对策[J].石油钻采工艺,2018,40(4):483-488.[doi:10.13639/j.odpt.2018.04.014]
 TANG Yanbing,WU Bo,ZHOU Hongtao.Distribution and development strategies of remaining oil controlled by different factors in fractured-vuggy oil reservoirs[J].Oil Drilling & Production Technology,2018,40(4):483-488.[doi:10.13639/j.odpt.2018.04.014]
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缝洞型油藏不同控因剩余油分布及开发对策
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《石油钻采工艺》[ISSN:1000-7393/CN:13-1072/TE]

卷:
40卷
期数:
2018年4期
页码:
483-488
栏目:
油气开采
出版日期:
2018-07-20

文章信息/Info

Title:
Distribution and development strategies of remaining oil controlled by different factors in fractured-vuggy oil reservoirs
文章编号:
1000 – 7393( 2018 )04 – 0483– 06
作者:
汤妍冰1  巫波1  周洪涛2
1. 中石化西北油田分公司; 2. 中国石油大学(华东)
Author(s):
TANG Yanbing1 WU Bo1 ZHOU Hongtao2
1. SINOPEC Northwest Oilfield Company, Urumqi 830011, Xinjiang, China; 2. China University of Petroleum (East China), Qingdao 266580, Shandong, China
关键词:
塔河油田缝洞型油藏剩余油分布控制因素开发对策
Keywords:
Tahe Oilfield fractured-vuggy oil reservoir distribution of remaining oil control factor development strategy
分类号:
TE327
DOI:
10.13639/j.odpt.2018.04.014
文献标志码:
A
摘要:
针对塔河碳酸盐岩缝洞型油藏剩余油分布认识不清的问题,以缝洞型油藏地质特征为基础,综合连通性分析、注采效果及油水分布特征研究,利用实钻井、措施井及注采效果分析,从宏观、微观、表观3 方面,分析出剩余油分布分别受油藏地质特征、缝洞发育特征及开发因素控制。在此基础上,结合油藏开发实际,提出了塔河碳酸盐岩缝洞型油藏3 大类14 亚类剩余油分布模式,明确了5 亚类属于油藏地质特征决定的宏观剩余油,6 亚类属于缝洞发育特征决定的微观剩余油,3 亚类属于开发不确定因素导致的表观剩余油。同时针对不同剩余油类型,提出了适应的开发对策,其中采用直井方式动用主干断裂分隔型、分支断裂点状充注型、水锥油斗型、纵向多套河道型、沟谷角洞型、大缝洞横向分隔型剩余油;采用侧钻井方式开发井洞关系型、指状分隔型、暗河充填型剩余油;采用调流道、大泵提液或选择性堵水方式动用孔缝通道型剩余油;采取分段酸压、大型酸化方式动用大缝洞纵向分隔型、裂缝闭合型剩余油。不同岩溶缝洞油藏剩余油类型及开发对策研究工作在塔河主体区取得了较好的开发效果,为相似油藏的剩余油挖潜奠定了基础。
Abstract:
The distribution of remaining oil in Tahe fractured-vuggy carbonate oil reservoir is not defined clearly. In order to solve this problem, the distribution of remaining oil was analyzed macroscopically, microscopically and apparently based on the geological characteristics of fractured-vuggy oil reservoirs, combined with the analysis on connectivity, injection/production effects and oil/water distribution characteristics, as well as actual wells, stimulation wells and their injection/production effects. It is shown that the distribution of remaining oil is controlled by the geological characteristics of oil reservoirs, the development characteristics of fractures and vugs and the development factors. Then, based on the actual development situations of Tahe fractured-vuggy carbonate oil reservoir, its distribution modes of remaining oil were classified into 3 types and 14 subtypes, among which 5 subtypes are the macroscopic remaining oil dominated by the geological characteristics of oil reservoir, 6 subtypes are the microscopic remaining oil dominated by the development characteristics of fractures and vugs, and 3 subtypes are the apparent remaining oil resulted from development uncertainty factors. Finally, the development strategies corresponding to each type of remaining oil were put forward. Vertical well is mainly used to produce the remaining oil of major fracture separated type, branch-fracture point charging type, water-coning oil funnel type, vertical multi-channel type, valley-vug type and laterally separated type by large fracture and vug. Sidetracking method is used for the remaining oil of well-vug relationship type, finger-like separated type and underground river filled type. Flowing path control, large-pump liquid lifting and selective water blocking are used to produce the remaining oil of pore and fracture path type. And staged acid fracturing and large-scale acidizing are used to produce the remaining oil of vertically separated type by large fracture and vug and fracture closed type. The studies on the types and development strategies of remaining oil in karst fracture-vuggy oil reservoirs achieve the remarkable development effects in the main part of Tahe and provide the basis for the potential tapping of remaining oil in similar oil reservoirs.

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更新日期/Last Update: 2018-11-20