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天然气勘探与开发 >

2024 , Vol. 47 >Issue 5: 76 - 85

DOI: https://doi.org/10.12055/gaskk.issn.1673-3177.2024.05.009

油气田开发

基于效益复产的控水采气技术——以磨溪气田嘉陵江组二段气藏为例

  • 胡秀银 ,
  • 罗诉舟 ,
  • 郑丽 ,
  • 符一洲 ,
  • 曾秀权 ,
  • 徐建平
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  • 中国石油西南油气田公司川中油气矿 四川遂宁 629000
胡秀银,男,1983年生,高级工程师,硕士;主要从事油气田开发方面研究工作。地址：（629000）四川省遂宁市开善东路503号。E-mail：huxiuyin@petrochina.com.cn

修回日期: 2024-07-25

  网络出版日期: 2024-11-05

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Water-control gas recovery technology based on beneficial resumption of production: A case study of Jia 2 Member gas reservoir in Moxi gas field, central Sichuan Basin

  • HU Xiuyin ,
  • LUO Suzhou ,
  • ZHENG Li ,
  • FU Yizhou ,
  • ZENG Xiuquan ,
  • XU Jianping
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  • Central Sichuan Oil and Gas District, PetroChina Southwest Oil & Gasfield Company, Suining, Sichuan 629000, China

Revised date: 2024-07-25

  Online published: 2024-11-05

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摘要

高产水气井因低效或无效益关停后,井口压力恢复较高,井控安全风险大。按照原有常规开发模式复产将面临地层水处理成本高、无人值守生产管理难度大等问题。为实现磨溪气田下三叠统嘉陵江组二段气藏安全效益复产,综合考虑气藏生产管理、安全环保和经济效益等因素,提出新型控水采气技术作为高压、高产水、低负效气井复产的工艺措施。通过开展控水采气生产现场试验,分析不同产水量、产气量、生产时长和间开周期条件下油压、产量等动态数据之间的关系,确定合理生产压差、产水规模和间开周期;同时结合气藏生产组织、生产管理等综合因素确定开关井制度,通过安装智能间开系统等配套工艺,进一步提升控水采气技术措施效果。研究结果表明：①该技术确保气藏关停井整体成功复产,有效降低了井控风险;②通过现场试验和推广应用,验证了选井标准和工艺参数计算方法的科学性;③“智能间开系统”等配套工艺进一步提升了现场运用效果。该技术为关停井复产、高压井管控、精细生产管理及提高气藏采收率提供了有力的技术支撑,在同类气藏中具有较强的推广应用价值。

关键词： 磨溪气田; 高产水井; 控水采气; 关停井复产; 低负效井; 效益开发

本文引用格式

胡秀银 , 罗诉舟 , 郑丽 , 符一洲 , 曾秀权 , 徐建平 . 基于效益复产的控水采气技术——以磨溪气田嘉陵江组二段气藏为例[J]. 天然气勘探与开发, 2024 , 47(5) : 76 -85 . DOI: 10.12055/gaskk.issn.1673-3177.2024.05.009

Abstract

After being shut in due to low/no benefit, high water-producing gas wells recover a relatively high level in wellhead pressure, posing a significant well control safety risk. Resuming production for such wells by using conventional development modes may suffer some problems such as the high cost of formation water treatment and the difficulties in management on unattended production. To safely and beneficially resume production of gas reservoirs targeting the second member of the Lower Triassic Jialingjiang Formation (Jia 2 Member) in the Moxi gas field, this paper proposes a water-control gas recovery technology for the resumption of gas wells with high pressure, high water production, and low/negative benefit, on the basis of considering the factors of reservoir production management, safety and environmental protection, and economic benefits. The relationship between dynamic data, such as tubing pressure and output, under the conditions of different water production, gas production, production times, and intermittent production cycle was identified by conducting field tests on water-control gas recovery, in order to determine the rational production pressure difference, water production capacity and intermittent production cycle. Meanwhile, a well opening/shut-in system was determined based on comprehensive factors including the production organization and management. The effectiveness of water-control gas recovery technology was further improved by configuring an intelligent intermittent production system. The results show that, (i) the proposed technology ensures the successful resumption of shut-in wells and effectively reduces well-control safety risks; (ii) the well selection criteria and process parameter calculation method have been verified by field tests and applications; and (iii) the intelligent intermittent production system enhances the performance of the technology in field application. The proposed technology provides a powerful support for resumption of production of shut-in wells, control over high-pressure wells, fine production management, and enhanced gas recovery. It is worthy of promotion to similar gas reservoirs.

Key words： Moxi gas field; High water-producing well; Water-control gas recovery; Resumption of production for shut-in well; well with low/negative benefit; Beneficial development

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