监测技术在曙光油田开发中的应用

针对曙光油田油层平面、层间均存在较为明显的渗透率差异,非均质相对较为严重等油藏特点,通过压力、注入剖面、产出剖面、示踪剂等各种生产监测技术在曙光油田的应用效果分析评价,充分认识到生产监测技术在揭示油藏平面、纵向开发矛盾及油藏剩余油研究和挖潜中具有重要的作用.生产监测技术应用表明,由注入剖面、产出剖面反映了主力油层动用较好,其余油层动用相对较差,其挖掘潜力在非主力油层;通过定点压力测试井连续监测地层压力,及时调整注采井网,保持地层能量;通过应用环空产液剖面资料确定出水层位,实施堵水措施11井次,有效9井次;应用同位素注水剖面测井,有针对性地与以前所测注水剖面资料进行对比,及时进行分调注措施,年均应用同位素注水剖面技术实施分调注井约60井次,效果明显.生产监测技术在一定程度上改善了油藏开发效果,为油藏稳产和持续发展奠定了基础.

Application of Monitoring Techniques in Shuguang Oilfield Development

In Shuguang oilfield, resistivity contrasts in oil surfaces and inter-oil zones are more obvious, and inhomogeneity is also more serious. Applications of production monitoring techniques, such as pressures, isotope injection profiles, production profiles and tracers, told us that production monitoring technique plays an important roll in revealing the reservoir behaviors, vertical developments, remaining oil distribution and tapping the potential of the remaining oil. Injection profiles and production profiles indicate oil recovery factor of the major oil zones is higher but the factor of other zones is lower. Non-major-productive zones should be further tapped. Fixed pressure testing wells are used to continuously monitor the formation pressure, and injector-producer wells are adjusted in time, so the formation energy is maintained. According to the water intervals determined from annular production profiles, 11 times water shutoff measures are taken in some wells, 9 of which is successful. Comparison between isotope injection profile log data and former injection profile log data helps us take multizone flow regulating measures in time, annually, 60 times regulating measures are taken in some wells. The above monitoring techniques improve the reservoir development efficiency and lay a good foundation for stable and continuous production of reservoirs.