辽河油田潜山地层气体钻井工艺及现场试验

发布时间：2018-01-10 10:08

本文关键词：辽河油田潜山地层气体钻井工艺及现场试验　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：气体钻井工艺技术是以气体为主要循环介质的钻井技术,相对于常规钻井,其优势主要表现在保护和发现油气层、提高单井油气产量、提高钻井速度,减少或避免井漏等井下复杂。而辽河油田经过30年勘探开发,产量逐年递减,目前勘探面临的主要目标是构造复杂区、深层、隐蔽性很强、低潜山凸起等岩性油气藏,勘探难度加大,相应地对勘探技术的要求方案越来越高,急需新技术。本文对气体钻井技术进行了深入的研究,包括充气钻井、空气钻井、氮气钻井和雾化钻井技术,同时对气体钻井技术需要的设备和工具进行了配套。之后确定了气体钻井适用地层筛选原则,初步筛选出外围奈曼旗凹陷中生界地层、西部凹陷兴马构造中生界地层、大民屯凹陷潜山储集层、低压稠油区块,并对其进行了气体钻井适用性分析。筛选井位后,制定了具体的施工方案。在现场试验阶段,进行了充气钻井、空气钻井和雾化钻井技术的现场实验性应用,并取得了良好的效果,并进行了总结,最终初步形成了适合辽河油田潜山地层的气体钻井技术,为辽河油田下一步的勘探和开发提供了一种新型的技术。
[Abstract]:Gas drilling technology is a drilling technology with gas as the main circulating medium. Compared with conventional drilling, its advantages are mainly to protect and find oil and gas zones, to improve the oil and gas production of single well and to improve drilling speed. In Liaohe Oilfield, after 30 years of exploration and development, the production is decreasing year by year. At present, the main target of exploration is complex structure area, deep layer and strong concealment. The exploration of lithologic reservoirs such as low buried-hill uplift is becoming more and more difficult, and the demand for exploration technology is becoming higher and higher, so the new technology is urgently needed. This paper makes a deep research on gas drilling technology, including inflatable drilling. Air drilling, nitrogen drilling and atomization drilling technology, at the same time, the equipment and tools needed for gas drilling technology are matched. After that, the suitable formation screening principles for gas drilling are determined. The Mesozoic strata in the peripheral Naimanqi sag, the Mesozoic strata of Xingma structure in the western sag, the buried hill reservoir in the Damingtun sag, and the low pressure heavy oil blocks have been preliminarily screened out. The applicability of gas drilling was analyzed. After the well location was screened, the specific construction plan was worked out. In the field test stage, the field experimental application of aerated drilling, air drilling and atomization drilling technology was carried out. Finally, gas drilling technology suitable for buried hill formation in Liaohe Oilfield has been preliminarily formed, which provides a new technology for the exploration and development of Liaohe Oilfield in the next step.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE242

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