胡尖山油田胡307-新46区合理开发参数研究

发布时间：2018-01-10 21:06

本文关键词：胡尖山油田胡307-新46区合理开发参数研究　出处：《西北大学》2015年硕士论文　论文类型：学位论文

【摘要】：论文以油藏描述为指导理论,以储层地质、开发地质、油层物理和前人地质研究成果为基础,多种资料对比研究,对胡尖山油田胡307-新46区的油藏基础特征和开发效果等问题进行了剖析。随后应用油藏工程论证、数值模拟和现场实践相结合为主要技术手段,对开发过程中的井网参数、压力参数、注入参数和采出参数四个方面进行了研究,确定研究区合理的开发参数。得出的主要认识和结论：1、水驱开发效果①研究区整体水驱控制程度为91.2%,其中胡307区、安62区和新46区的水驱储量控制程度分别为91.7%、91.1%和91%,全区控制程度好；研究区整体水驱储量动用程度为55.7%,全区整体动用程度差。其中胡307区和新46区的水驱储量动用程度分别为52.7%和37.1%,动用程度差；安62区动用程度为70.2%,动用程度一般。②研究区整体的最终采收率为28.5%,其中胡307区、安62区和新46区的采收率分别为28.7%、29.5%和27%。③研究区全区存水率维持在60%左右,而水驱指数一直处于缓慢上升过程,水驱效果相对较差；截至2014年10月,胡307区和新46区的存水率分别为56%和38.8%,水驱效果差；安62区的存水率一直稳定在75%左右,水驱指数稳定,水驱效果较好。④研究区当前波及系数为15.29%,理论极限波及系数为83.80%,还有16.20%未波及。其中胡307区、安62区和新46区的当前波及系数分别为17.96%、17.84%和18.78%,理论极限波及系数分别为84.97%、85.47%和83.23%,分别还有15.03%、14.53%和16.77%的含油体积未波及到。2、合理的开发参数①井网参数：研究区的合理井网密度为9.14 口/kmm2,其中胡307区、安62区和新46区的合理井网密度分别为9.11口/km2、7.94口/km2和9.11口/kmm2。②压力参数：研究区合理地层压力保持水平为89.2%,最小合理流动压力范围为2.88-5.26MPa,最大合理生产压差范围为4.8-7.18MPa。胡307区、安62区和新46区的合理地层压力保持水平分别为85%、99.8%和86%；最小合理流动压力分别为2.57-5.86MPa、3.88-5.29MPa和2.49-4.85MPa；最大合理生产压差分别为3.8-7.09MPa、5.49-6.9MPa和4.89-7.25MPa。③注入参数：研究区合理注采比为0.7-1.1,全区单井合理日注水量为20-31.8 m3/d,最大合理井口压力为13.04-16.31MPa。胡307区、安62区和新46区的合理注采比分别为0.7-1.0、0.85-1.2和0.65-1.05,单井合理日注水量分别为18.5-32.6m3/d、23-37.5m3/d和13.3-23.4m3/d；最大合理井口压力为12.82-16.02MPa、13.55-16.98MPa和12.74-15.91MPa。④采出参数：胡307区块的合理采油速度为2.08%,安62区的合理采油速度为2.10%,新46的采油速度为2.09%,研究区整体的采油速度为2.09%：胡307区的采液强度为0.89-1.33m3/(m·d),安62区合理采液强度为0.93-1.3m3/(m·d),而新46区为0.56-1.Om3/(m·d),研究区平均采液强度为0.81-1.25m3/(m·d)；合理产能分别为3.93t/d、4.15t/d和3.24t/d,研究区平均产能为3.69t/d。
[Abstract]:Based on the theory of reservoir description, reservoir geology, development geology, reservoir physics and previous geological research results, this paper makes a comparative study of various data. The basic characteristics and development effect of reservoir in Hu 307-Xin46 area of Hujianshan Oilfield are analyzed. The main technical means are reservoir engineering demonstration, numerical simulation and field practice. Four aspects of well pattern parameters, pressure parameters, injection parameters and recovery parameters are studied in order to determine the reasonable development parameters in the research area. The control degree of water drive in the study area 1 is 91.2%, and the control degree of water drive reserves in Hu 307, An62 and Xin46 is 91.71.1% and 91%, respectively. The control degree of the whole area is good; The whole water drive reserves in the study area is 55.7 percent, and the whole area is poor. The water drive reserves in Hu 307 area and Xin46 area are 52.7% and 37.1% respectively. Poor use; The utilization degree of An62 area is 70.2 and the final recovery factor of the whole research area is 28.5. among them, Hu 307 area. The oil recovery of An62 area and Xin46 area are 28.72.5% and 27.3%, respectively, and the water storage rate of the whole area is about 60%, while the water drive index is rising slowly. The effect of water flooding is relatively poor; As of October 2014, the water storage rates of Hu 307 and Xin 46 were 56% and 38.8 respectively, which resulted in poor water drive effect. The water storage rate of An62 area has been stable at about 75%, the water drive index is stable, the water flooding effect is good. 4 the current sweep coefficient is 15.29 and the theoretical limit sweep coefficient is 83.80%. The current sweep coefficients of Hu 307, an 62 and Xin 46 are 17.96% and 18.78% respectively. The theoretical limit sweep coefficient is 84.97% and 83.23% respectively, and the oil volume of 15.03% and 16.77% is not affected to 2.2. Reasonable development parameter 1 well pattern parameter: the reasonable well pattern density of the study area is 9.14 / kmm-2, including Hu 307 area. The reasonable well pattern density of An62 and Xin46 are 9.11 / km ~ 2 / km ~ 2, respectively. 7.94 / km2 and 9.11 / kmm2.2 pressure parameters: reasonable formation pressure maintenance level is 89.2% in the study area. The minimum reasonable flow pressure range is 2.88-5.26MPa, and the maximum reasonable production pressure difference range is 4.8-7.18MPa.Hu 307. The reasonable formation pressure level of An62 area and Xin46 area are 8599.8% and 86%, respectively. The minimum reasonable flow pressure is 2.57 ~ 5.86 MPA and 2.49-4.85 MPA, respectively. The maximum reasonable production pressure difference is 3.8-7.09 MPA. 5.49-6.9MPa and 4.89-7.25MPa.3 injection parameters: the reasonable injection-production ratio is 0.7-1.1. The reasonable daily injection rate of single well in the whole area is 20-31.8 m3 / d and the maximum reasonable wellhead pressure is 13.04-16.31 MPa.Hu 307. The reasonable injection-production ratio of An62 and Xin46 are 0.7-1.0 ~ 0.85-1.2 and 0.65-1.05, respectively. The reasonable daily injection rate of single well is 18.5-32.6 m3 / d. 23-37.5 m3 / d and 13.3-23.4m3 / d; The maximum reasonable wellhead pressure is 12.82-16.02 MPA. The recovery parameters of 13.55-16.98MPa and 12.74-15.91MPa.4 are as follows: the reasonable oil recovery rate is 2.08% in block Hu 307. The reasonable oil recovery rate of An62 area is 2.10 and that of new 46 is 2.09%. The oil recovery rate of the whole study area is 2.09 and that of Hu 307 is 0.89-1.33 m3 / m 路d). The reasonable liquid recovery intensity in An62 area was 0.93-1.3 m3 / d, while in Xin46 area was 0.56-1.Om3 / m 路d. The average liquid recovery intensity in the study area is 0.81-1.25m / 3 / d ~ (-1) m 路d ~ (-1); The reasonable productivity is 3.93 t / d 4.15 t / d and 3.24 t / d respectively, and the average productivity of the study area is 3.69 t / d.
【学位授予单位】：西北大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE34

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