论文详情

旋冲钻井技术在川西硬地层的应用

断块油气田

2013年 20卷第04期

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Title

Application of rotary percussion drilling technology in hard formation of western Sichuan

作者

秦晓庆刘伟李丽王超潘登雷

单位

中国石化西南石油工程公司技术装备处，四川成都 610041 中国石化西南油气分公司钻井工程处，四川成都 610041 中国石化西南油气分公司工程技术研究院，四川德阳 618000 中国石化西南工程公司井下作业公司，四川德阳 618000

Organization

Technology and Equipment Department, Southwest Petroleum Engineering Company, SINOPEC, Chengdu 610041, China Drilling Engineering Department, Southwest Oil and Gas Company, SINOPEC, Chengdu 610041, China Engineering Technology Research Institute, Southwest Oil and Gas Company, SINOPEC, Deyang 618000, China Downhole Services Company,

Southwest Engineering Company, SINOPEC, Deyang 618000, China

摘要

川西地区深层天然气资源丰富，是中国石化增储上产的重点区块。沙溪庙组—须家河组岩石致密，可钻性差，机械钻速慢、钻井周期长是该地区深井钻井的首要难题。针对此问题，开展了旋冲钻井技术先导试验。通过现场应用和工具的改进、完善，在钻井液密度为2.25 g/cm3的条件下，旋冲钻井的平均机械钻速比同地层PDC钻头提高26%，成为川西硬地层钻井提速的又一重要手段。

Abstract

The deep gas in western Sichuan is rich in resources and is the major block to increase production for SINOPEC. The Shaximiao Formation to Xujiahe Formation rocks are dense and have poor drillability. Slow drilling speed and long cycle are the primary problems of deep drilling in this area. To solve this problem, the pilot test for rotary percussion drilling is conducted. Through field application and tool improvement, and under the condition of drilling fluid density of 2.25 g/cm3, average penetration rate increases 26% compared with PDC drilling rate in the same formation, which becomes an important means for increasing the drilling speed of hard formation.

关键词：

旋冲钻井; 深井; 须家河组; 硬地层; 川西地区;

Keywords:

rotary percussion drilling; deep well; Xujiahe Formation; hard formation; western Sichuan Area;

基金项目

DOI

10.6056/dkyqt201304025