• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Saudi Aramco journal of technology >Impact of Multistage Fracturing on Tight Gas Recovery from High-Pressure/High Temperature Carbonate Reservoirs
【24h】

Impact of Multistage Fracturing on Tight Gas Recovery from High-Pressure/High Temperature Carbonate Reservoirs

机译：多级压裂对高压/高温碳酸盐岩气藏致密气采收率的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The multistage fracturing (MSF) technique has considerably improved gas production from tight gas reservoirs all over the world. Well production is one of the main determining factors used to assess the success of a fracturing treatment. In this article, numerous vertical and horizontal wells drilled in high-pressure/high temperature heterogeneous reservoirs have been evaluated to confirm the effectiveness of stimulation treatments and the benefits derived from the use of novel technologies. Among many variables that were analyzed are drilling, completion and stimulation parameters, such as well azimuth, completion types, fluid characteristics, acid strength, etc. A database for stimulated wells was created, and various parameters were grouped and assessed to provide a correlation to, and understanding of, the effectiveness of fracture treatments, and to optimize development plans. Correlations were drawn by using the Pearson correlation coefficient (PCC) equation to compute data trends and ensure good quality data. Numerous very useful plots that show the different trends of the variables evaluated and how they affect production rate have been constructed and are presented here. Analyses results indicate that use of real-time geomechanics is important to predict reservoir pressure and mud weight when wells are laterally drilled in the preferred minimum in situ stress (σ_(min)) direction. This is because when wells are drilled along the σ_(min) direction, they tend to become more unstable due to the higher stress acting on the wellbore. Accuracy in predicting stresses and pressures is key to the drilling of such wells. The completion assemblies were selected between the open hole multistage approach and the plug and perforation cased hole approach, based on reservoir properties and hole conditions. The impact on production performance of using non-damaging, low gel loading fracturing fluids, high strength proppants, and optimal fluid and acid volumes is demonstrated using actual field examples. The application of channel fracturing, a novel fracturing technique, for improved fracture conductivity has proven successful for sustained gas production in tight gas reservoirs, thereby making low productivity wells commercially viable.
机译：多级压裂（MSF）技术极大地改善了全世界致密气藏的产气量。井产量是用来评估压裂处理成功与否的主要决定因素之一。在本文中，已经对在高压/高温非均质油藏中钻出的许多垂直井和水平井进行了评估，以确认增产措施的有效性以及使用新技术所带来的好处。在分析的众多变量中，包括钻井，完井和增产参数，例如井的方位角，完井类型，流体特征，酸强度等。创建了增产井的数据库，并对各种参数进行了分组和评估，以提供相关性。 ，了解骨折治疗的有效性，并优化开发计划。通过使用Pearson相关系数（PCC）方程来绘制相关性，以计算数据趋势并确保高质量的数据。构造并展示了许多非常有用的图，这些图显示了所评估变量的不同趋势以及它们如何影响生产率。分析结果表明，当沿首选的最小原位应力（σ_（min））方向横向钻探井时，使用实时地质力学对于预测储层压力和泥浆重量非常重要。这是因为，当沿σ_（min）方向钻井时，由于作用在井眼上的应力较高，井往往变得更加不稳定。预测压力和压力的准确性是此类井钻探的关键。根据油藏属性和井眼条件，在裸眼多级方法与插塞和射孔套管井方法之间选择完井组件。通过实际的实例证明了使用无损，低凝胶负荷的压裂液，高强度支撑剂以及最佳的流体和酸量对生产性能的影响。事实证明，通道压裂是一种新型的压裂技术，用于改善裂缝导流能力，已成功地用于致密气藏中的持续天然气生产，从而使低生产率井在商业上可行。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号