特种油气藏2013，Vol.20Issue(2)：130-133,4.DOI:10.3969/j.issn.1006-6535.2013.02.033
大牛地气田水平井钻完井工艺技术
Drilling and completion technology for horizontal wells in the Daniudi gas field
摘要
Abstract
The attempt of horizontal well technology in the Daniudi gas field has presented low drilling index, high cost, and can not meet the requirement of low cost and high efficiency development. The reasons of low drilling index are analyzed to he irrational well structure, large hole size, high build -up rate and coalbed collapse in angle buildup interval. The countermeasures are analyzed and optimized, thus formed a series of techniques, including 152. 4 mm horizontal hole structure technique, three - section single build - up rate trajectory design technique, combined drilling techniques for the vertical interval in the upper part of the second spud - in section, and coal seam safe drilling technique. Field application shows that the drilling index of horizontal drilling has been greatly improved in the Daniudi gas field, with drilling cycle shortened from 139 d to 61 d, ROP improved from 3. 02 m/h to 6. 75 m/h, thus obtained good application result.关键词
小井眼/复合钻具/煤层钻进/优快钻井/水平井/大牛地气田Key words
slim hole/ compound drill tool/ coal seam drilling/ quality and fast drilling/ horizontal well/ Daniudi gas field分类
能源科技引用本文复制引用
常兴浩,秦玉英,王锦昌..大牛地气田水平井钻完井工艺技术[J].特种油气藏,2013,20(2):130-133,4.基金项目
国家科技重大专项"大牛地气田特殊结构井钻完井工艺技术研究"(2008ZX05045-003-3)部分研究成果 （2008ZX05045-003-3）
