天然气地球科学

• 天然气开发 • 上一篇    

水平井地质导向技术在苏里格气田苏53区块的应用

吴则鑫   

  1. 中国石油长城钻探工程有限公司地质研究院,辽宁 盘锦 124010
  • 收稿日期:2012-10-23 修回日期:2013-01-09 出版日期:2013-08-10 发布日期:2013-08-10
  • 通讯作者: 吴则鑫wuzexin_108@126.com. E-mail:wuzexin_108@126.com.
  • 作者简介:吴则鑫(1983-),男,山东梁山人,工程师,硕士,主要从事气藏综合地质和气藏工程研究.E-mail:wuzexin_108@126.com.
  • 基金资助:

Application of Geologic Steering Technique of Horizontal Well in Complex Thin Layerand Low Permeability Gas Reservoir:A Case from a District in Sulige Gas Field

WU Ze-xin   

  1. Geology Institute of CNPC Greatwall Drilling Engineering Company Limited.,Panjin 124010,China
  • Received:2012-10-23 Revised:2013-01-09 Online:2013-08-10 Published:2013-08-10

摘要:

与常规直井相比,水平井在提高单产、迅速建产和老区挖潜方面优势巨大,同时水平井地质跟踪技术的迅速发展,使水平井大幅度提高储层钻遇率和整体开发油气田已成为可能。针对苏里格河流相致密砂岩气藏,砂体叠置、相变快的特点,应用先进的地质跟踪软件将三维地质建模与传统地质跟踪技术相结合,充分应用随钻实时数据,提出了“精雕模型、实时对比、把握着陆、随钻录井、更新模型、修正认识、及时调整”的地质跟踪思路,并以HW井实钻为例加以说明。研究区采用地质跟踪技术,平均砂岩钻遇率为87%,有效储层钻遇率达65%,并结合后期的压裂改造等技术措施,取得了显著的开发效果,对同类型气藏的钻探开发具有较高的借鉴和应用价值。

关键词: 苏里格气田, 水平井, 地质导向, 模型更新, 压裂

Abstract:

Compared to common vertical wells,horizontal wells have great advantage in improving individual well producing rate,rapidly establishing productivity and excavating the potential of the old producing area.The rapid development of geologic steering technique of horizontal well make it possible to greatly improve the reservoir drilling rate and overall develop oil and gas fields.In view of the tight sandstone gas reservoirs which have characteristics of fast transformation of fluvial facies,overlapped sandbody,this paper applies advanced geological tracking software,combining the 3D geological modeling and traditional geological tracking technology,and makes fully use of LWD real-time data,from the design,landing into the target to horizontal drilling,and puts forward the relatively perfect thought of geologic steering:carve model,real-time contrast,grasp the landing point;update model,correction of understanding,timely adjustment.And then,it takes the real drilling of HW well for example.With this technique,it obtained average sandstone drilling of 90% and effective reservoir drilling rate of 64%,and makes great production effects combined with the late hydraulic fracturing,which has high reference and application value to the same type of gas reservoir exploration and exploitation.

Key words: Sulige Gas Field, Horizontal well, Geologic steering, Update model, Hydraulic fracturing

中图分类号: 

  • TE242

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