Development and application of downhole liquid level sampler
-
摘要: 许多油气井因地层能量不足或者在生产一段时间后,地层能量逐渐下降,油气产量逐渐减小,在油气田的勘探和开发过程中,了解井筒液面的位置及液性变化情况是判断地层产能、注氮或者酸化、压裂等改善措施的重要途径。如果所获取的地层流体样品质量不高,实验评价不正确,会使后面的工序决策失误。设计一种新型的液面浮力激发的井下液面自动取样器,能够很好地解决以上问题。Abstract: Oil and gas productions gradually decreased when formation energy became poor after a period of production in many oil and gas wells. Downhole liquid level and property change are important to judge formation energy and carry out nitrogen injection or acidification. Formation fluid samples with a poor quality and incorrect experimental evaluation will lead to subsequent decision-making mistakes. A new downhole liquid level sampler driven by buoyancy solved the above problem.
-
Key words:
- fluid sampling /
- downhole liquid level sampler /
- downhole operation /
- Tahe oil field
-
[1] 田明,高山军,杨学本.高压取样技术的研究与应用[J].石油钻采工艺,2013,35(6):118-121. [2] 杨兴琴,王书南,周子皓.地层测试与井下流体取样分析技术进展[J].测井技术,2012,12(6):551-558. [3] 马建国,祃开德,倪军,等.聚焦取样技术快速摄取油藏真实流体样品[J].测井技术,2008,32(4):375-379. [4] 丁勇.塔河油田奥陶系油气藏流体分布与受控因素[J].海相油气地质,2016,21(1):13-18. [5] 甘丽丽,董文玉,朱永源,等.塔河油田盐下地区流体控制因素研究[J].重庆科技学院学报(自然科学学版),2013,15(2):35-38.
计量
- 文章访问数: 919
- HTML全文浏览量: 117
- PDF下载量: 108
- 被引次数: 0