天然气水合物生成条件预测模型及适用性评价
Prediction Model for Natural Gas Hydrate Formation Conditions and Applicability Evaluation
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- 引用格式:
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皮艳慧,廖柯熹,孙欧阳.天然气水合物生成条件预测模型及适用性评价[J].天然气与石油,2012,30(6):0.doi:
.Prediction Model for Natural Gas Hydrate Formation Conditions and Applicability Evaluation[J].Natural Gas and Oil,2012,30(6):0.doi:
- DOI:
- 作者:
- 皮艳慧1 廖柯熹1 孙欧阳2
- 作者单位:
- 1.西南石油大学，2.中国石油西气东输管道分公司
- 关键词:
- 天然气水合物；模型；评价；计算
Natural gas hydrate； Model； Evaluation； Calculation
- 摘要:
- 水合物的生成给天然气的开采和集输等过程带来诸多困难。为了准确预测天然气水合物生成条件，选取Parrish-Prausnitz、Du-Guo和Chen-Guo三种模型，采用C++语言编制程序对不含抑制剂时天然气水合物的生成条件进行求解，通过模型预测值与实验值比较，评价各模型预测精度，确定各模型的适用范围。当天然气中不含C3 +重烃组分及酸气时，推荐采用Du-Guo模型预测；当天然气有重烃组分，但酸性气体总体积含量低于1 %时，推荐采用Parrish-Prausnitz模型预测；当天然气酸性气体总体积含量高于1 %时，推荐采用Chen-Guo模型预测。
Hydrate formation will result in many difficulties during natural gas exploitation and gathering and transportation. To predict gas hydrate formation conditions exactly， applied are such?Parrish-Pransnitz model， Du-Guo model and Chen-Guo model and C++ language programming to solve hydrate formation conditions of natural gas containing no inhibitor， compared are the predictions of such models to experimental values， evaluated are prediction precision of such models and determined are their application scopes. Du-Guo model is recommended if natural gas contains no C + 3 heavy hydrocarbon compositions and acid gas， Parrish-Pransnitz model is recommended if natural gas contains C + 3 heavy hydrocarbon compositions but total volume of acid gas is less than 1% and Chen-Guo model is recommended if total volume of acid gas is more than 1%.
