石油工业技术监督

针对韩城区块煤层气田部分井场压力过大，导致区域管道超负荷运行，从而影响集输管网增产目标的问题，进行韩城区块复杂煤层气集输管网调压方案的设计与优化研究，以提高管网集输能力。采用PNS管网仿真软件，建立涵盖井口、井场、管道、集气站的系统性煤层气集输管网仿真模型，利用实际生产数据进行模型调试与校验，进而确定煤层气复杂集输管网所需调压处理的区域。以降低超负荷区域井场压力为目标，基于不同调压参数和调压方案的仿真结果，从工艺适应性、运行稳定性等方面综合评价，优选韩南2区域压缩机最佳布局方案，明确超负荷区域压缩机最佳布置位置及调压方案。

In view of the problem that the pressure in some well sites of the coalbed methane field in the Hancheng block is too high,causing the regional pipeline to operate beyond its capacity and thus affecting the production increase target of the gathering and transportation network, the design and optimization research of the pressure regulation scheme for the complex coalbed methane gathering and transportation network in the Hancheng block were carried out to improve the gathering and transportation capacity of the network.The PNS pipe network simulation software was used to establish a systematic coalbed methane gathering and transportation pipeline network simulation model covering wellhead, well field, pipeline and gas gathering station. The actual production data was used to debug and verify the model, and then the required pressure regulation treatment area of the complex coalbed methane gathering and transportation pipeline network was determined. With the goal of reducing the pressure at the well site in the overload area, based on the simulation results of different pressure regulation parameters and pressure regulation schemes, a comprehensive evaluation was conducted from aspects such as process adaptability and operational stability to select the best layout scheme for the compressor in the Han Nan 2 area, and to clarify the optimal layout position of the compressor in the overload area and the pressure regulation scheme.