摘要
东胜气田位于鄂尔多斯盆地北部,在区域构造上,横跨鄂尔多斯盆地伊盟隆起、伊陕斜坡、天环坳陷三个构造单元,是华北油气分公司"十三五"期间主力建产阵地。针对东胜气田成藏组合复杂、储层致密低渗、含气丰度低、气藏类型多样、气水关系复杂等开发难度大的特点,开发过程中部分气井产液量大,如何正确评价气井产能,优化气井合理配产是实现东胜气田高效开发的关键。通过"一点法"产能评价与试井产能评价对比,明确了"一点法"的局限性,结合58井区气井生产特征,建立了气水两相产能评价模型,证明其可靠性较高。在产能评价基础上采用经济极限产量法、临界携液流量法、数值模拟法等多种方法,开展锦58井区合理配产研究。研究结果表明:采用"高产低配、低产高配"原则,针对东胜气田锦58井区水平井不同的无阻流量区间,对应其合理配产比例,为气井的合理生产提供了依据,为东胜气田上产奠定了基础。
Dongsheng gasfield located in the northern Ordos basin. It＇s regional tectonic across unita uplift in Ordos basin, yishan slope and day in ring depression.It is the main building positions were built in the North China oil and gas company during the period of ＂thirteenth five-year＂.The characteristics of complex reservoir formation, low permeability of reservoir, low gas abundance, diverse gas reservoir type, complex gas and water relationship,etc in Dongsheng gasfield. How to correctly evaluate the gas well productivity and optimize the reasonable distribution of gas well is the key to realize the efficient development of Dongsheng gasfield. The evaluation model of gas-water two-phase production capacity is established by comparing the production capacity evaluation of ＂one point method＂ with the evaluation of well test productivity, and combining the production characteristics of the gas well in 58 well area. On this basis, the rational distribution and production research of Jin58 well area was carried out based on economic limit yield, critical fluid flow rate, and numerical simulation method. The results show that according to the unimpeded flow interval of the horizontal well in Jin58 well area of Dongsheng gasfield, the reasonable distribution ratio of the horizontal wells is corresponded through the principle of ＂high yield used low distribution, low yield used high distribution＂. It provides basis for the reasonable production of gas well and lays the foundation for the production of Dongsheng gasfield.
作者
郭辉
GUO Hui(Exploration and Development Research Institute,Sinopec North China Company,Zhengzhou Henan 450006,Chin)
出处
《石油化工应用》
CAS
2018年第5期5-10,共6页
Petrochemical Industry Application
基金
国家科技重大专项"低丰度致密低渗油气藏开发关键技术"
项目编号:2016ZX05048
关键词
产能评价
经济极限产量
临界携液流量
产能配比法
数值模拟法
capacity evaluation
economic limit production
critical fluid flow
production ca-pacity ratio method
numerical simulation method
