靖边高桥及苏里格南区下古气井生产规律研究

发布时间：2018-04-26 22:18

本文选题：气井 + 产能　；参考：《西安石油大学》2015年硕士论文

【摘要】：靖边高桥区及苏里格南区于2011年投入规模开发,2011年建产能8.26×108m3/a,2012年建产能12.22×108m3/a。试采分析表明苏南及高桥下古气井产能差别大,地层系数涉及范围广,表明储层非均质强。靖边高桥及苏里格南区投产时间短,处于开发初期,气井生产规律还需进一步摸索,尽管关于气井和气藏动态分析方面的文献较多,但针对该区复杂储层条件和开采条件下的综合系统评价方法的研究却较少,未形成动态分析技术系列;该区下古气井受储层非均质性影响,气井产气能力和产水特征差异大,生产管理难度大。投产气井生产动态显示,下古生界气井单井产量高、产气能力强,但存在产能差异大、水气比大、压力下降较快、递减率大等问题。为了科学有效地开发利用下古气藏,合理评价下古生界气藏开发潜力,正确认识下古气井生产特征,需要充分应用试气、试采及投产气井的生产动态资料,分析下古气井的生产规律,建立下古气井分类标准,明确不同类型井生产动态特征及稳产能力,进而优化下古气井生产工作制度,确定气井合理配产,方可为提高该地区下古气藏整体开发效果提供指导。该项目主要从下古气井动静态资料入手,以下古气井试气、试采、生产动态资料为主,进行生产规律综合性研究,开展下古气井产能评价、不同类型气井生产规律研究、进行下古气井合理配产研究、开展气井动储量及可采储量评价,进行气井递减规律判识及递减率评价,进行气田开发指标评价,这些成果的取得,将为气田下步的开发与管理提供科学、合理依据。建立了苏南及高桥气井一点法产能计算经验公式,复算苏南气田61口下古井平均无阻流量23.24×104m3/d(靖边下古平均无阻流量25.62×104m3/d),9口生产层位马五5、马五6井平均无阻流量79.10×104m3/d,其余53口井平均无阻流量13.57×104m3/d。高桥气田35口井平均无阻流量5.64×104m3/d。
[Abstract]:Jingbian Gaoqiao District and Sulige South District went into large-scale development in 2011, with production capacity of 8.26 脳 108 m3 / a in 2011 and 12.22 脳 108 m3 / aa in 2012. The analysis of production test shows that the productivity difference of the ancient gas wells in south Jiangsu and Gaoqiao is great, and the formation coefficient involves a wide range, which indicates that the reservoir is heterogeneity. Since the production time of Jingbian Gaoqiao and Sulige Southern District is short, the production law of gas wells needs to be explored further in the early stage of development, although there are many literatures on gas well and gas reservoir performance analysis. However, there are few researches on the comprehensive system evaluation methods under complex reservoir conditions and exploitation conditions, and no dynamic analysis technique series has been formed. The lower paleogas wells in this area are affected by reservoir heterogeneity, and there are great differences in gas production capacity and water production characteristics of gas wells. Production management is difficult. The production performance of the gas wells in production shows that the lower Paleozoic gas wells have high production rate and strong gas production capacity, but there are some problems such as large productivity difference, large water-gas ratio, rapid pressure decline and large decline rate. In order to develop and utilize the Lower Paleozoic gas reservoir scientifically and effectively, evaluate the development potential of the Lower Paleozoic gas reservoir reasonably, and correctly understand the production characteristics of the lower Paleozoic gas well, it is necessary to make full use of the production performance data of the gas test, production test and production wells. The production law of lower ancient gas well is analyzed, the classification standard of lower ancient gas well is established, the production dynamic characteristics and stable production ability of different types of wells are defined, and the production working system of lower ancient gas well is optimized, and the reasonable distribution of gas well is determined. It can provide guidance for improving the overall development effect of lower paleo-gas reservoir in this area. This project mainly starts with the dynamic and static data of the lower ancient gas well, the following ancient gas well test gas, the test production, the production dynamic data mainly, carries on the production law synthesis research, carries on the lower ancient gas well productivity evaluation, the different type gas well production law research, The reasonable production allocation of lower ancient gas wells, the evaluation of dynamic reserves and recoverable reserves of gas wells, the recognition of the law of gas well decline and the evaluation of decline rate, and the evaluation of gas field development indexes are carried out. It will provide scientific and reasonable basis for the next development and management of gas field. The empirical formula of one-point productivity calculation for South Jiangsu and Gaoqiao gas wells is established. The average unobstructed flow rate of 61 lower ancient wells in Sunan gas field is 23.24 脳 10 ~ 4 m ~ (3 / d) d (average unobstructed flow rate of 25.62 脳 10 ~ (4) m ~ (-3) / d ~ (-1) in Jingbian (9 production zones, Ma Wu ~ (6) well, 79.10 脳 10 ~ (4) m ~ (3) 路d ~ (-1), and 13.57 脳 10 ~ (4) m ~ (-3 / d) of the remaining 53 wells. The average unobstructed flow rate of 35 wells in Gaoqiao gas field is 5.64 脳 104 m3 / d.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE328

【参考文献】