• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2002 ASME International Mechanical Engineering Congress and Exposition , Nov 17-22, 2002, New Orleans, Louisiana >A PUMPING SYSTEM TO ENHANCE PRODUCTION FROM GAS WELLS
【24h】

A PUMPING SYSTEM TO ENHANCE PRODUCTION FROM GAS WELLS

机译：用于提高气井产量的抽油系统

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

A new pumping technology has been developed and patented by the Alberta Research Council to address the problem of liquid loading in natural gas wells at low, depleted pressures. This technology consists of a pump installed at the bottom of the well bore that is driven by the reservoir gas pressure to bring the produced liquids to the surface as they accumulate thereby improving gas production from shallow gas wells. The above pump concept has been investigated in two stages of research. In the first stage, a mathematical model was developed to estimate the minimum reservoir pressure required to prevent liquid build up in a gas well with either: 1. the reservoir pressure (and flow) itself carrying the produced liquids to the surface in a two-phase flow or 2. the reservoir gas pressure powering a pumping device to carry the produced liquids to the surface in the most efficient manner possible. The objective of the second stage of this investigation was to look at the feasibility of using a reciprocating pump powered by gas pressure. In particular, the effect of the pump Area Ratio (ratio of the area being pushed by the gas to the area pushing the liquid) on the use of reservoir gas pressure was investigated. There are approximately 70,000 flowing gas wells in Western Canada and these gas wells were categorized by depth and production rate. From this list of gas wells, a typical well was chosen and its production data and well characteristics were incorporated into the mathematical model. The model was tested in both the above-mentioned investigations and the results show that there is a significant increase in the operating range when the reservoir pressure is used more efficiently to produce gas from the well. It was determined that higher pump area ratios lead to a more efficient use of reservoir pressure and for the gas well investigated in this study, an optimum area ratio of 40 was identified as the best design. The concept of multistage pumping was also investigated. The results presented are the basis for experiments presently being designed that will validate the current model of the system and allow for possible improvements.
机译：艾伯塔省研究委员会已经开发了一种新的抽油技术并获得了专利，以解决低压，低压下天然气井中的液体负荷问题。该技术由安装在井筒底部的泵组成，该泵由储层气体压力驱动，以在采出的液体积聚时将其带到地面，从而改善了浅层气井的产气量。上述泵的概念已在两个研究阶段进行了研究。在第一阶段，开发了一个数学模型来估算防止液体在气井中聚集所需的最小储层压力，其中之一是：1.储层压力（和流量）本身将采出的液体以两步的方式运送到地表。 2.气藏压力驱动泵送装置，以尽可能最有效的方式将产生的液体输送到地面。该研究第二阶段的目的是研究使用由气压驱动的往复泵的可行性。特别地，研究了泵面积比（气体推动的面积与推动液体的面积之比）对使用储气压力的影响。加拿大西部大约有70,000口正在流动的气井，这些气井按深度和生产速率分类。从该气井清单中，选择了典型的气井，并将其生产数据和气井特征纳入了数学模型。在上述两个调查中均对该模型进行了测试，结果表明，当更有效地利用储层压力从井中生产天然气时，作业范围会大大增加。已确定较高的泵面积比可以更有效地利用储层压力，并且对于本研究中所研究的气井而言，最佳面积比40被确定为最佳设计。还研究了多级泵送的概念。给出的结果是当前正在设计的实验的基础，这些实验将验证系统的当前模型并允许可能的改进。

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