石油钻采工艺
石油鑽採工藝
석유찬채공예
OIL DRILLING & PRODUCTION TECHNOLOGY
2014年
6期
90-93
,共4页
稠油油藏%筛管完井水平井%分段化学堵水%耐高温堵剂%辽河油田
稠油油藏%篩管完井水平井%分段化學堵水%耐高溫堵劑%遼河油田
주유유장%사관완정수평정%분단화학도수%내고온도제%료하유전
heavy oil reservoir%horizontal well with screen completion%staged chemical water plugging%high temperature resis-tance plugging agent%Liaohe Oilifeld
目前由于边底水侵入等原因造成辽河油田部分稠油油藏筛管完井水平井高含水生产，严重影响产能，为此，进行了分段化学堵水技术研究。研制了水平井可捞式桥塞、水平井耐高温堵剂、水平井液体桥塞等关键工具及堵水材料，形成了水平井分段化学堵水技术，实现对水平段任意一点精确堵水，堵水精度可达2 m。该技术自2010年以来在辽河油田新海27块、杜84块、高246块、冷41块等区块累计现场应用19井次，截至2014年4月，累计增油8173 t，累计降水9.69×104 m3，试验效果良好。现场试验表明，水平井分段化学堵水技术能够满足水平井堵水要求，具有较大的推广应用价值，目前水平井分段化学堵水有效期一般为8个月左右，下一步在如何提高堵水有效期方面仍需攻关研究。
目前由于邊底水侵入等原因造成遼河油田部分稠油油藏篩管完井水平井高含水生產，嚴重影響產能，為此，進行瞭分段化學堵水技術研究。研製瞭水平井可撈式橋塞、水平井耐高溫堵劑、水平井液體橋塞等關鍵工具及堵水材料，形成瞭水平井分段化學堵水技術，實現對水平段任意一點精確堵水，堵水精度可達2 m。該技術自2010年以來在遼河油田新海27塊、杜84塊、高246塊、冷41塊等區塊纍計現場應用19井次，截至2014年4月，纍計增油8173 t，纍計降水9.69×104 m3，試驗效果良好。現場試驗錶明，水平井分段化學堵水技術能夠滿足水平井堵水要求，具有較大的推廣應用價值，目前水平井分段化學堵水有效期一般為8箇月左右，下一步在如何提高堵水有效期方麵仍需攻關研究。
목전유우변저수침입등원인조성료하유전부분주유유장사관완정수평정고함수생산，엄중영향산능，위차，진행료분단화학도수기술연구。연제료수평정가로식교새、수평정내고온도제、수평정액체교새등관건공구급도수재료，형성료수평정분단화학도수기술，실현대수평단임의일점정학도수，도수정도가체2 m。해기술자2010년이래재료하유전신해27괴、두84괴、고246괴、랭41괴등구괴루계현장응용19정차，절지2014년4월，루계증유8173 t，루계강수9.69×104 m3，시험효과량호。현장시험표명，수평정분단화학도수기술능구만족수평정도수요구，구유교대적추엄응용개치，목전수평정분단화학도수유효기일반위8개월좌우，하일보재여하제고도수유효기방면잉수공관연구。
At present, due to invasion of edge water and bottom water, some horizontal wells with screen completion for heavy oil reservoirs in Liaohe Oilifeld are producing with high watercut, which severely affects their productivity;for this reason, research on staged chemical water plugging technique has been conducted, and key tools and water plugging materials have been developed like ifshable bridge plug in horizontal wells, high temperature resistance plugging agent for horizontal wells, liquid plug for horizontal wells, etc., and the staged chemical water plugging for horizontal wells has been developed, which can realize accurate water plugging at any point in horizontal section, and water plugging accuracy can be up to 2 m. This technique has been used for 19 well-times since 2010 on such blocks as Xinhai Block 27, Du Block 84, Gao Block 246 and Leng Block 41 in Liaohe Oilifeld. By April of 2014, accumulated increase in oil production was 8 173 t and water reduction was 9.69×104 m3, so the tests were proved very effective. Field tests show that staged chemical water plugging technique for horizontal wells can meet the requirement of water plugging in horizontal wells and has signiifcant promotion and application value. At present, the effective period of staged chemical water plugging is about 8 months in general, so how to improve the effective period of water plugging remains to be tackled in further research.
