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- CBM well extraction 煤层气排采
- The result shows that the recovery condition of the CBM well will change with the change of the recovery system, and the permeability of coal reservoirs will also change. 研究结果表明，煤层气井工作制度的变化会引起煤层气井采动状况发生变化，导致煤储层渗透率产生波动。
- To select an appropriate drilling technology beneficial to reservoir protection is a key step to increase the production capability of single CBM well. 采用合适的钻井工艺是保护煤层气储层免受伤害,从而提高煤层气井单井产量的关键环节。
- It is indicated that the current risk level is high for the operation of CBM project, and therefore the CBM well management and CBM market developmen... 本文认为目前煤层气项目营运期间的风险水平较高,应当加强对煤层气井的管理和煤层气的市场开发工作,以降低煤层气项目运营期间的风险,提高项目赢利性能。
- Conclusion: The SBE is the best extraction method in preparation... 结论:乙肝颗粒剂以采用SBE法提取为佳。
- To optimize the best extraction process of Rhizoma Coptis. 目的:优选黄连最佳提取工艺。
- Objective: Selecting the better extraction of soybean isoflavone. 目的:优选出大豆中大豆异黄酮的提取工艺。
- Analyses of productivity of CBM wells reveal that the high yielding wells are mostly located in these areas. 煤层气井产能分析结果也表明，目前的高产井大多数位于这一区域。
- Y445 series of bridge plugs were successfully applied in layer fracturing of CBM wells and met the requirements . Y445系列压裂桥塞在煤层气井分层压裂中的成功应用基本上达到了这一目的。
- Study on CBM Well Capacity Grading Scheme 煤层气井产能分级方案研究
- ConclusionIt can be used as the best extraction for Tinospora sagittata（Oliv. 结论建议选用回流提取法作为金果榄最佳提取方法。
- The technology of fracturing fluid in CBM well 煤层气井用压裂液技术研究
- Required by production from CBM wells, the conventional oil mining technology by electric pump needs to be renovated in many aspects to fit CBM wells. 由于煤层气井生产特性的要求,常规的电泵采油技术对煤层气井而言有许多不适应的地方,需要进行相应的改进。
- During the horizontal well and the directional well extraction process, vitta and the oil-pole joint and the centralizer frequently have the contact which makes the vitta have the lopsided abrasion. 在水平井和定向井的采油过程中,油管内壁和运动的油杆接箍及扶正器之间经常发生接触,使油管内壁发生偏磨。文中将偏磨油管的破裂强度问题看作失稳问题,应用弹塑性有限元方法分析了偏磨油管的破裂强度。
- Software development of CBM well test 煤层气试井分析软件开发和设计
- From the analyzing of the process of production at CBM wells on the basis of hydro geologic, this paper elaborates the mechanism of water drainage and gas production at CBM wells. 从水文地质的角度分析了稳定状态和非稳定状态下煤层气井的生产过程,揭示了煤层气井生产的实质就是通过排水达到降压、采气,以地下水运移规律为指导进行排采是煤层气井持续、稳定、高产的关键。
- Unless the pot is very hot,the temperature of the water will drop too low during steeping for the best extraction. 如果茶壶不很热，那么在泡的过程中，水温会降得太低，达不到理想的泡出。
- CONCLUSION:The best extracting technology is feasible and ext... 结论:优选的提取工艺切实可行,收得率高。
- I am well aware that this is a tough job. 我深知这是一件棘手的工作。
- Unless the pot is very hot, the temperature of the water will drop too low during steeping for the best extraction. 如果茶壶不很热，那么在泡的过程中，水温会降得太低，达不到理想的泡出。
