Evaluation of Affusion Effect in South Wenwu A rea
单位
(吐哈油田分公司勘探开发研究院)
Organization
R esearch Institute of Exploration & Deve lopment, Tuha Oilfield Company, P etroChina, Ham i 839009, China
摘要
温五南夹片生产效果和注水效果都比较差, 目前采油速度低, 采出程度低。本专
题研究表明, 该区块水驱控制程度比较低, 水驱动用程度低, 上油组目前尚有73. 3% 的含油区
域未见效, 水驱采收率比较低, 为27% , 注水利用率低, 有效注采比低。造成以上问题的主要
原因是: 断层多、断块复杂, 砂体物性差、连片性差, 目前井网不适应温五南夹片的地质条件, 注
采结构不合理。针对该区块的具体问题, 提出了钻井原则以及应完善井网、调整注采结构等具
体技术对策。
Abstract
The production and in jection e ffect are not good in South W enwu a rea where explo ita tion ra te and degree are low er. The study o f this subject show s tha t contro l deg ree and produc ing deg ree o f wa ter flood ing are low er, 73. 3% of o ilbear ing area is situated in nonw ater flooding area, the recov ery ra tio of w ater flooding is on ly 27%, and affusion utilizing ratio and effective in jec tion production ra tio a re low. The ma in reasons o f fau lts are: ex cessiv e and comp licated fau lt b lock; bad sand qua lity ; ac tua lwe ll pa ttern no t adaptab le to geolog ica l cond ition inW enwu south area ; inconsequential structure o f in jection and production. Next techno logy coun term easu res are pu t forw ard wh ich inc lude drilling pr incipia, pe rfecting w e ll d isposal and adjusting struc ture o f injection and production.
关键词:
水驱控制程度;水驱动用程度;有效注采比; 断块;注采结构;
Keywords:
Contro l degree of w ater flood ing, Produc ing deg ree o f w ater flood ing, Effective injection production ra tio, Fault b lock, Struc ture of injection and production;