基于产量损失率的气井合理配产方法研究

Research on Production Allocation Method of Gas Well Based on Production Loss Rate

罗建新 赵茂林 张烈辉 刘继柱 范梓煊

LUOJianxin ZHAOMaolin ZHANGLiehui LIUJizhu FANZixuan

油气藏地质及开发工程全国重点实验室·西南石油大学, 四川 成都 610500 中国石油塔里木油田公司勘探事业部, 新疆 库尔勒 841000 中国石油新疆油田公司采油一厂, 新疆 克拉玛依 834000

National Key Laboratory of Oil and Gas Reservoir Geology and Exploration, Southwest Petroleum University, Chengdu, Sichuan 610500, China Exploration Department, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China No. 1 Oil Production Plant, Xinjiang Oilfiled Company, PetroChina, Karamay, Xinjiang 834000, China

合理配产对气井生产具有非常重要的作用。现有的配产方法一般是按照无阻流量的1/6~1/3来进行。在研究气体在地层中的非达西效应的基础上，提出了产量损失率的概念，通过量化非达西效应造成的产量损失，建立了气井产量损失率与无因次产量的图版。对于每一个配产，可得到与其相应的产量损失率，非达西效应对气井产量的影响就有了定量化的表征。因此，可根据产量损失率来进行合理配产。对于某些高压气藏，由于地层压力高，气体压缩程度大，地层条件下非达西效应并不强，产量损失率比较低，这类气井就可以将产量配高一些。该配产方法可实现量化储层气体非达西渗流损失，实现气井合理配产。该研究成果能在气井常规配产方法的基础上，进一步优化气井配产制度，更好地满足气井长期稳产、高效开发的需求，为气藏开发提供有益的借鉴。

Production allocation plays a very important role in gas well production. The existing production allocation are generally done based on 1/6~1/3 of the open flow rate. On the basis of studying the non-Darcy effect of gas in the formation, the concept of production loss rate was proposed. By quantifying the production loss caused by the non-Darcy effect, a chart of gas well production loss rate and dimensionless production was established. For each production allocation, the corresponding yield loss rate can be obtained. Therefore, reasonable production allocation can be carried out based on the yield loss rate. For certain high-pressure gas reservoirs, due to high formation pressure and high gas compression, the non-Darcy effect is not strong under formation conditions, and the rate of production loss is relatively low. This type of gas wells can increase production by a certain amount. This production allocation method can quantify the non-Darcy flow loss of reservoir gas and achieve reasonable production allocation of gas wells. This research achievement can further optimize the reasonable production allocation system of gas wells on the basis of conventional production allocation methods, better meet the long-term stable and efficient development needs of gas wells, and provide useful reference for gas reservoir development.

10.11885/j.issn.1674-5086.2022.09.19.02