﻿ 深海油气藏油气井产能模型研究 Study on Oil and Gas Well Productivity Model of Deep Sea Oil and Gas Reservoir

Open Journal of Nature Science
Vol.05 No.02(2017), Article ID:20598,7 pages
10.12677/OJNS.2017.52023

Study on Oil and Gas Well Productivity Model of Deep Sea Oil and Gas Reservoir

Yuxian Guo1, Siyuan Hao2, Chuqi Zhou3, Mingze Li4

1Northeast Petroleum University, Daqing Heilongjiang

2The 3rd Drilling Company at Daqing, Daqing Heilongjiang

3China National Offshore Oil Corporation Ltd. Tianjin Branch, Tianjin

4The 8th Oil Production Factory at Changqing, Xi’an Shaanxi

Received: May 3rd, 2017; accepted: May 17th, 2017; published: May 23rd, 2017

ABSTRACT

The data of oil and gas well deliverability test are important to determine the reasonable production of gas wells, the scale of oil and gas reservoir development, the number of development wells, the size of the oil and gas gathering and transportation network, the size of the compressor station and the analysis of the pollution level of the bottom hole. At the same time, it also provides the necessary parameters for production, prediction and gas reservoir numerical simulation. In this paper, we study the productivity model of oil and gas wells in deep oil and gas reservoirs, and develop reasonable oil and gas production based on numerical simulation.

Keywords:Deep Sea Oil and Gas Reservoir, Productivity Model, Numerical Simulation, Reasonable Oil and Gas Production

1东北石油大学，黑龙江 大庆

2大庆钻井三公司，黑龙江 大庆

3中海油(中国)有限公司天津分公司，天津

4长庆油田第八采油厂，陕西 西安

1. 引言

2. 气井产能评论理论与公式

1) 二项式法

(1)

(2)

——平均地层压力，标态压力和井底流压，MPa；

——气井日产量，104m3/d；

——回归系数；

(3)

(4)

2) 指数式法

(5)

(6)

n——指数。

(7)

(8)

3) 一点法

(9)

(10)

(11)

——无阻流量，104m3／d。

(12)

3. 气井合理产能计算

Figure 1. Binomial method graph

Figure 2. Exponential method graph

Table 1. Comparison of three methods

4. 油井产能评价理论与公式

(13)

(14)

(15)

(16)

(17)

(18)

5. 油井合理产能计算

6. 单井阶梯降产分析

Figure 3. IPR curve of oil well graph

Table 2. Production of single well in gas wells

Table 3. Production of single well in oil wells

7. 结论

1) 利用Eclipse数模软件改变气井生产制度，得到井口压力和瞬时产量的关系，分别利用二项式法、指数式法、一点法求得气井的最大无阻流量，比较并求得平均值，从而确定气井的无阻流量及合理配产范围。

2) 利用Eclipse数模软件测定油井在规定井底流压的产量，并利用Petrel的IPR模块根据佩特布拉斯改进的沃格尔方程，生成油井的IPR 曲线并得到该井的Qlmax

3) 利用数值模拟软件实时监测地层平均压力变化，以2 MPa为梯度，计算不同平均压力的的合理产能，以便于投产之后的后期调整。

Study on Oil and Gas Well Productivity Model of Deep Sea Oil and Gas Reservoir[J]. 自然科学, 2017, 05(02): 165-171. http://dx.doi.org/10.12677/OJNS.2017.52023

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