区块整体压裂改造技术先导性试验
Integral Fracturing Technology in Pilot Test
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- 引用格式:
-
刘,宁,宁晓颖,郝桂宪,付大其,张润泽.区块整体压裂改造技术先导性试验[J].天然气与石油,2013,31(4):0.doi:
.Integral Fracturing Technology in Pilot Test[J].Natural Gas and Oil,2013,31(4):0.doi:
- DOI:
- 作者:
- 刘 宁 宁晓颖 郝桂宪 付大其 张润泽
- 作者单位:
- 中国石油大港油田石油工程研究院
- 关键词:
- 砂泥岩薄互层；特低渗；低伤害压裂液体系；压裂工艺；现场试验
Sandstone and mudstone thin interbed； Extra-low permeability； Fracturing technology； Field test
- 摘要:
- 滨海一区滨深8区块探明石油地质储量3 091.75×104 t，占滨海一区总探明石油地质储量的61.1 %。为了实现区块整体压裂改造的目的，根据地质开发井网部署，在该区块采用常规井、水平井两种井型共部署6口井，其中常规井5口、水平井1口。针对滨深8区块含油储集层埋藏深、井段长、砂泥岩薄互层、低孔、特低渗、温度高、敏感性强及自然产能低等改造难点，通过室内大量实验研究，优选出了针对性强的压裂工艺及液体体系，经先导性试验，取得了显著的增油效果。
The proven oil reserves of Block Binshen 8 in Binhai Area I is 3 091.75×104 t， 61.1 % of total proven oil reserves in this area. In order to realize integral block fracturing，6 wells in total are arranged in this area according to the geological development well pattern arrangement，including 1 horizontal well and 5 conventional wells. Analyzed are characteristics of Block Binshen 8，such as deep burial of oil reservoir，long well section，thin sand shale interbed，low porosity，low permeability，high temperature，high sensitivity and low natural productivity，conducted are indoor research and a large number of experiments and selected and optimized are the targeted fracturing technology and liquid system. The pilot test shows that oil increase effects are remarkable.
