异常高压气藏采气速度与稳产期定量关系——以阿姆河右岸B-P气田为例

doi:10.7623/syxb201505009

石油学报 ›› 2015, Vol. 36 ›› Issue (5): 600-605.DOI: 10.7623/syxb201505009

异常高压气藏采气速度与稳产期定量关系——以阿姆河右岸B-P气田为例

史海东¹, 王晖², 郭春秋², 张宇³, 成友友²

1. 中国地质大学能源学院北京 100083;
2. 中国石油勘探开发研究院北京 100083;
3. 西南石油大学石油与天然气工程学院四川成都 610500

收稿日期:2014-11-18 修回日期:2015-04-14 出版日期:2015-05-25 发布日期:2015-06-10
通讯作者: 史海东,男,1981年6月生,2002年获大庆石油学院石油工程专业学士学位,2007年获中国石油大学(北京)油气田开发工程专业硕士学位,现为中国地质大学(北京)能源学院博士研究生,主要从事气藏工程方面的研究。Email:shihaidong-hw@petrochina.com.cn
作者简介:史海东,男,1981年6月生,2002年获大庆石油学院石油工程专业学士学位,2007年获中国石油大学(北京)油气田开发工程专业硕士学位,现为中国地质大学(北京)能源学院博士研究生,主要从事气藏工程方面的研究。Email:shihaidong-hw@petrochina.com.cn
基金资助:
国家重大科技专项(2011ZX05059)和中国石油天然气集团公司重大专项(2011E-2505)资助。

Q uantitative relationship between gas recovery rate and stable production period of abnormally high pressure gas reservoirs: a case study of B-P gas field on the right bank of the Amu Darya

Shi Haidong¹, Wang Hui², Guo Chunqiu², Zhang Yu³, Cheng Youyou²

1. School of Energy Resources, China University of Geosciences, Beijing 100083, China;
2. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;
3. School of Oil & Natural Gas Engineering, Southwest Petroleum University, Sichuan Chengdu 610500, China

Received:2014-11-18 Revised:2015-04-14 Online:2015-05-25 Published:2015-06-10

摘要/Abstract

摘要：

针对阿姆河右岸B区中部异常高压气藏生产动态预测难度大的问题,从气藏实际出发,以物质平衡方程和气井产能公式为基础,结合气藏工程分析及数值模拟方法,建立了异常高压气藏稳产期预测模型。通过分析气藏开发过程,研究了地层流体特征参数随气藏压力下降的变化规律,确定了气藏压力特征值,将异常高压气藏的开发过程划分为高压期与常压期两个阶段,并采用分段函数对预测模型进行求解,得出了不同阶段采气速度与稳产期末采出程度的定量关系。实现了不同采气速度情况下气藏稳产期的快速预测。将该方法应用于B-P气藏并与数模结果相互验证,稳产期预测的绝对误差小于2 %,满足工程计算精度要求。同时,采用该定量关系也可对异常高压气藏递减期产量进行预测。

关键词: 异常高压气藏, 采气速度, 稳产期, 定量关系, 预测, 物质平衡方程

Abstract:

A great difficulty exists in predicting the production performance of abnormally high pressure gas reservoirs in the middle section of Region B on the right bank of the Amu Darya. According to the actual situation of reservoirs, a model was established based on material balance equation and gas-well productivity equation in combination with gas reservoir engineering analysis and numerical stimulation method, so as to predict the stable production period of abnormally high pressure gas reservoirs. Through analyzing gas-reservoir development process, the change laws of formation fluid characteristic parameters with the decline of gas-reservoir pressure were studied to determine the eigenvalue of gas-reservoir pressure. The development of abnormally high pressure gas reservoir was divided into two phases, i.e., high pressure stage and constant pressure stage. Moreover, piecewise function was used for solution of the prediction model, so as to obtain the quantitative relationship between gas recovery rate in different stages and the recovery degree at the end of stable production period. On this basis, rapid prediction of stable production period was achieved in the case of different gas recovery rates. This method was applied to B-P gas reservoir for mutual, and validated with numerical stimulation results. The absolute error of prediction on stable production period was less than 2 %, able to meet the requirement of engineering calculation accuracy. Meanwhile, this equation is also available in output prediction during the depletion period of abnormally high pressure gas reservoirs.

Key words: abnormally high pressure gas reservoirs, gas recovery rate, stable production period, quantitative relationship, prediction, material balance equation

中图分类号:

TE332

史海东, 王晖, 郭春秋, 张宇, 成友友. 异常高压气藏采气速度与稳产期定量关系——以阿姆河右岸B-P气田为例[J]. 石油学报, 2015, 36(5): 600-605.

Shi Haidong, Wang Hui, Guo Chunqiu, Zhang Yu, Cheng Youyou. Q uantitative relationship between gas recovery rate and stable production period of abnormally high pressure gas reservoirs: a case study of B-P gas field on the right bank of the Amu Darya[J]. Acta Petrolei Sinica, 2015, 36(5): 600-605.

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异常高压气藏采气速度与稳产期定量关系——以阿姆河右岸B-P气田为例

Q uantitative relationship between gas recovery rate and stable production period of abnormally high pressure gas reservoirs: a case study of B-P gas field on the right bank of the Amu Darya

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