油气藏评价与开发
油氣藏評價與開髮
유기장평개여개발
2014年
1期
42-45
,共4页
超稠油%水平井%溢流%注采同体技术
超稠油%水平井%溢流%註採同體技術
초주유%수평정%일류%주채동체기술
ultra heavy oil%horizontal well%overflow%injection-production consubstantial technology
针对辽河油田曙一区杜84区块超稠油水平井局部井位部署区域因储层物性差、压力高，在蒸汽吞吐开采初期存在溢流，而延缓油井正常下泵转抽作业时间，降低油井生产时率，错过最佳回采时机，影响油井生产效果的问题，开展了水平井注采同体技术的研究。该技术可以在油井注入蒸汽前将注蒸汽管柱、采油管柱和抽油泵同时下入井内，经过注蒸汽、焖井和放喷后，无需进行转抽作业的工序，而直接挂抽生产。通过现场应用，取得了较好的回采效果，提高了油井生产时率和油汽比，有效地解决了水平井生产中因溢流而影响生产的难题。
針對遼河油田曙一區杜84區塊超稠油水平井跼部井位部署區域因儲層物性差、壓力高，在蒸汽吞吐開採初期存在溢流，而延緩油井正常下泵轉抽作業時間，降低油井生產時率，錯過最佳迴採時機，影響油井生產效果的問題，開展瞭水平井註採同體技術的研究。該技術可以在油井註入蒸汽前將註蒸汽管柱、採油管柱和抽油泵同時下入井內，經過註蒸汽、燜井和放噴後，無需進行轉抽作業的工序，而直接掛抽生產。通過現場應用，取得瞭較好的迴採效果，提高瞭油井生產時率和油汽比，有效地解決瞭水平井生產中因溢流而影響生產的難題。
침대료하유전서일구두84구괴초주유수평정국부정위부서구역인저층물성차、압력고，재증기탄토개채초기존재일류，이연완유정정상하빙전추작업시간，강저유정생산시솔，착과최가회채시궤，영향유정생산효과적문제，개전료수평정주채동체기술적연구。해기술가이재유정주입증기전장주증기관주、채유관주화추유빙동시하입정내，경과주증기、민정화방분후，무수진행전추작업적공서，이직접괘추생산。통과현장응용，취득료교호적회채효과，제고료유정생산시솔화유기비，유효지해결료수평정생산중인일류이영향생산적난제。
The regional well deployment area of ultra heavy oil horizontal wells of Du84 block of Shu-1 area in Liaohe oilfield are of poor reservoir property and high pressure, so that the overflow exists in the initial steam stimulation. The overflow delays the nor-mal operation time, reduces the oil production efficiency and misses the optimal recovery time. Therefore, the well production is af-fected. Aiming at this problem above, research on injection-production consubstantial technology of horizontal wells was conduct-ed. This technology can lay down the steam string, the production string and the pump simultaneously before steam injection. After steam injection, shut in and blow off, the direct production replace the transforming into pumping. The field application obtaind great extraction effect, increased oil production efficiency and oil/steam ratio, and effectively solved the problems that the overflow affected the production.
