马思平, 柳洁, 魏萍, 李鹏, 汪泳吉, 张智谋, 段星宇. 苏10区块集输模式的优化[J]. 油气储运, 2015, 34(8): 905-908. DOI: 10.6047/j.issn.1000-8241.2015.08.022
引用本文: 马思平, 柳洁, 魏萍, 李鹏, 汪泳吉, 张智谋, 段星宇. 苏10区块集输模式的优化[J]. 油气储运, 2015, 34(8): 905-908. DOI: 10.6047/j.issn.1000-8241.2015.08.022
MA Siping, LIU Jie, WEI Ping, LI Peng, WANG Yongji, ZHANG Zhimou, DUAN Xingyu. Optimization of gathering mode of Su-10 Block[J]. Oil & Gas Storage and Transportation, 2015, 34(8): 905-908. DOI: 10.6047/j.issn.1000-8241.2015.08.022
Citation: MA Siping, LIU Jie, WEI Ping, LI Peng, WANG Yongji, ZHANG Zhimou, DUAN Xingyu. Optimization of gathering mode of Su-10 Block[J]. Oil & Gas Storage and Transportation, 2015, 34(8): 905-908. DOI: 10.6047/j.issn.1000-8241.2015.08.022

苏10区块集输模式的优化

Optimization of gathering mode of Su-10 Block

  • 摘要: 由于苏里格气田苏10区块单井产量低,井口压力为0.5~1.0 MPa,积液井占总井数的62%,导致地面管网普遍存在积液问题。为更加有效地携出集输管网积液,同时降低井口压力,提高单井采收率,需对目前集输模式进行优化设计。针对苏10区块集输模式存在的问题,针对性地开展了流量控制、降低压差工艺试验;同时根据目前集输模式的特点,提出阀室移动增压橇集输模式设计。计算结果表明,优化后的集输模式可以进一步降低井口压力(0.1~0.5 MPa),从而有助于单井井筒携液,提高单井采收率;同时可以有效地对管网进行携液,降低管网压差,提高输气效率,最终达到延长气井寿命,为气田稳产提供支撑的目的。

     

    Abstract: In Su-10 Block, individual-well producing rate is currently low with wellhead pressure of 0.5-1.0 MPa, and watered-out wells account for 62% of all wells. Obviously, liquid loading is common in surface pipeline network. Therefore, it is necessary to optimize the design of current gathering mode, so as to carry effectively the liquid loading out of gathering pipeline network, decrease wellhead pressure and increase individual-well recovery rate. Flow rate control and pressure difference reduction experiments are carried out to solve the existing problems of gathering mode in Su-10 Block. Based on the characteristics of current gathering mode, a gathering mode of valve-chamber movable boosting skid is proposed. It is indicated by calculation results that wellhead pressure (0.1-0.5 MPa) is reduced further after the gathering mode is optimized. Thus, the innovative mode is useful for well bore to carry liquid, thereby increasing individual-well recovery rate. It can also conduct effective liquid carrying for pipeline network, so as to decrease pressure difference of pipeline network and improve gas transmission efficiency, and consequently prolong service life of gas wells, providing support for the stable production of the gasfield.

     

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