南國立　楊永超　王渝東　周長軍　陳秋芬　權(quán)培豐

　　針對中原油田注水開發(fā)的不斷深入，大孔道普遍存在，遞減逐年加大，開發(fā)效果變差。通過分析中原油田地質(zhì)特點(diǎn)，開展封堵大孔道技術(shù)研究，形成了配套的PI決策技術(shù)、示蹤劑油藏監(jiān)測技術(shù)、多段塞封堵技術(shù)、分層封堵及施工工藝技術(shù)，并對各種技術(shù)進(jìn)行了詳細(xì)的闡述。同時開展了系列封堵大孔道堵劑研究，開發(fā)了石灰泥堵劑、水泥復(fù)合堵劑、粉煤灰堵劑、紙漿廢液堵劑、F917樹脂堵劑、WT-II封堵劑、鹽酸―硅酸鈉等調(diào)剖劑的研究。試驗(yàn)證明，系列堵劑對封堵大孔道具有明顯的作用。現(xiàn)場應(yīng)用取得了較好的結(jié)果，為高含水期油田穩(wěn)產(chǎn)探索了一條新路，提高了油田最終采收率。
　　關(guān)鍵詞　注水井　封堵技術(shù)　封堵劑　效果分析　中原油田
　　中圖分類號：TE357.8；TE3583；　文獻(xiàn)標(biāo)識碼：A　文章編號：1006―768X(1999)06―0033―05

Plugging macropores in Zhongyuan Oilfield

YANG Yong-chao,WANG Yu-dong, ZHOU Chang-jun,
CHEN Qiu-fen,QUAN Pei-feng
（Oil Production Plant,Zhongyuan Oilfield,Fan county,Henan 457532,China)

　　Abstract:With development of waterflood decelopment in Zhongyuan Oilfield,macropores are widely existed,production decrease is accelerated annually.Through analysis of geologic features of Zhongyuan Oilfield,macropore plugging technique is studied,and matching techniques are formed,such as PI decision technique,tagged-agent reservoir monitoring technique,multi-slug plugging technique,separate-layer pluiging technique and operation technology. In this paper,each technique is expounded in detail. Meanwhile,plugging agents of macropore plugging are studied, And lime slurry plugging agent,cement compound plugging agent,fly ash plugging agent,pulp exhausts plugging agent,F917 resin plugging agent,WT-Ⅱ plugging agent and hydrochloric acid-sodium silicate profile control agent are developed.These plugging agents have apparent effects on plugging macropores and have got good results after application in field.
　　Key words:water injection well,plugging technique,plugging agent,result analysis,Zhongyuan Oilfield