石油学报 ›› 2012, Vol. 33 ›› Issue (S2): 166-173.DOI: 10.7623/syxb2012S2017

• 油田开发 • 上一篇    下一篇

高温深层碳酸盐岩储层酸化压裂改造技术

王永辉 1  李永平 1  程兴生 1  周福建 1  车明光 1  张福祥 2  彭建新 2  杨向同 2   

  1. 1. 中国石油勘探开发研究院廊坊分院 河北廊坊 065007; 2. 中国石油塔里木油田公司 新疆库尔勒 841000
  • 收稿日期:2012-07-10 修回日期:2012-10-22 出版日期:2012-12-25 发布日期:2013-03-01
  • 通讯作者: 王永辉
  • 作者简介:王永辉,男,1964年10月生,1986年毕业于西北大学,2004年获西南石油大学油气田开发工程专业博士学位,现为中国石油勘探开发研究院廊坊分院压裂酸化技术服务中心副主任、高级工程师,主要从事压裂酸化工艺研究。
  • 基金资助:

    中国石油天然气股份有限公司重大科技专项“海相碳酸盐岩储层改造与测试配套技术研究与应用”(2008E-0712)资助。

A new acid fracturing technique for carbonate reservoirs with high-temperature and deep layer

WANG Yonghui 1  LI Yongping 1  CHENG Xingsheng 1  ZHOU Fujian 1 CHE Mingguang 1  ZHANG Fuxiang 2  PENG Jianxin 2  YANG Xiangtong 2   

  • Received:2012-07-10 Revised:2012-10-22 Online:2012-12-25 Published:2013-03-01

摘要:

海相碳酸盐岩储层是当前油气勘探开发的重点和热点领域之一,而酸化压裂增产改造技术则是碳酸盐岩油气藏勘探开发的关键性技术。在研究中国西部碳酸盐岩油气藏开发方式的过程中,针对其埋藏深、温度高和非均质性强等特点,通过相应的基础理论研究、技术研发配套以及现场技术应用,形成了高温深层碳酸盐岩储层改造配套新技术。其具体包括改造前储层量化评估、耐高温改造液体系、均匀布酸酸化、深度酸压、加砂压裂、酸携砂压裂和水平井多段酸压等改造技术。该技术的广泛应用可以为碳酸盐岩储层的高效开发提供有力的技术支持。根据目前储层改造技术的发展现状,分析了当前面临的挑战以及进一步的发展方向。

关键词: 高温, 深层, 碳酸盐岩, 酸化, 酸压, 加砂压裂, 水平井

Abstract:

At present, marine carbonate reservoirs are one of priorities and hot areas in oil and gas exploration and development, and acid fracturing stimulation technologies are essential for exploration and development of carbonate reservoirs. In the study of carbonate reservoir exploration in western China, a series of new reservoir stimulation techniques were developed for high-temperature and deep layer carbonate reservoirs based on their characteristics of deep burial, high temperature and strong heterogeneity with a combination of the corresponding fundamental research, technological supporting research and development, and field technical applications. The proposed technique involved a series of new stimulation techniques, e.g., quantitative assessment before reservoir stimulation, liquid-system stimulation with high-temperature resistance, uniform acid distribution and homogeneous acidizing, acid fracturing in deep layer, proppant fracturing, proppant acid fracturing, and multi-stage acid fracturing of horizontal wells. This technique should be widely used and will provide substantial technical support for the efficient exploration of carbonate reservoirs.Based on the current development status of reservoir stimulation techniques, this study further discussed the challenges and future developmental directions.

Key words: high temperature, deep layer, carbonate, acidizing, acid fracturing, proppant fracturing, horizontal well