天然气地球科学

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塔里木盆地塔中地区奥陶系超埋深碳酸盐岩凝析气田水平井储层分段酸压改造应用实践及认识

季晓红,黄梦云,单锋,周锦明,张浩,张金柏   

  1. (1.中国石油塔里木油田分公司塔中勘探开发项目经理部,新疆 库尔勒 841000;
    2.潜能恒信能源技术股份有限公司,北京 100083)
  • 收稿日期:2015-01-21 修回日期:2015-04-28 出版日期:2015-11-20 发布日期:2015-11-20
  • 作者简介:季晓红(1964-),男,江苏如皋人,高级工程师,硕士,主要从事钻完井工程研究. E-mail:jixh3084@126.com.
  • 基金资助:

    “塔中碳酸盐岩凝析气田上产增储一体化井位部署研究”项目资助.

Practice and Cognition on the Reservoir Reconstruction Application by Segmented Acid Fracturing for Openhole Horizontal Wells in Tazhong Ordovician Carbonate Condensate Gasfield with Ultra Depth

JI Xiao-hong,HUANG Meng-yun,SHAN Feng,ZHOU Jin-ming,ZHANG Hao,ZHANG Jin-bai   

  1. (1.Tazhong Exploration and Development Management Department,Tarim Oilfield,PetroChina,Korla 841000,China;
    2.Sino Geophysical Co.Ltd.,Beijing 100083,China)
  • Received:2015-01-21 Revised:2015-04-28 Online:2015-11-20 Published:2015-11-20

摘要:

水平井裸眼分段酸压工艺是实现塔中超埋深、高温高压碳酸盐岩凝析气田规模、高效开发的主要技术手段。经过几年来的探索与实践,塔里木盆地塔中Ⅰ号气田形成了一套针对不同储层类型、较好适应塔中超埋深碳酸盐岩储层高温、高压、高含硫特点的长裸眼水平井分段酸压改造综合配套技术。现场应用取得较好效果。介绍了国产全通径裸眼分段完井工具的结构、性能、工作原理、技术特点,改造前综合研究—精细分段设计技术、国产全通径管柱长裸眼水平井分段技术、超埋深碳酸盐岩储层酸压改造液体技术、超埋深碳酸盐岩储层酸压改造工艺等水平井裸眼分段酸压改造综合配套技术的应用实践和取得的效果。

关键词: 水平井, 裸眼, 储层改造, 分段压裂, 悬挂封隔器, 裸眼封隔器, 投球式筛管, 压控式筛管, 塔中Ⅰ号气田

Abstract:

The segmented acid fracturing for openhole horizontal wells is key technical means to achieve large-scale efficient development for carbonate condensate gas field with ultra depth,high temperature and pressure.With exploration and practice over several years,to adapt carbonate reservoir type with ultra depth,high temperature,high pressure and sulfur,Tazhong 1st Gasfield has formed a set of segmented acid fracturing comprehensive technology for horizontal well with long openhole,which has achieved a good result for in-situ application.This study introduced the structure,performance,working principle and technical characteristics of domestic segmented completion tool for full bore openhole,in-situ application and results of those comprehensive technology,including that pre-reconstruction comprehensive research and fine-segmented design technology,long openhole horizontal well segmentation technology for domestic full bore pipe string,acid fracturing reconstruction liquid system technology and technologic measures for ultra-deep carbonate reservoir.

Key words: Horizontal well, Open hole, Reservoir reconstruction, Segmented fracturing, Hanging packer, Ball-dropping screen, Pressure-controlled screen, Tazhong 1st Gasfield

中图分类号: 

  • TE344

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