川西须家河组地层PDC钻头结构参数优化及选型

肖国益; 胡大梁; 廖忠会; 王希勇; 李群生

doi:10.3969/j.issn.1001-0890.2012.03.006

川西须家河组地层PDC钻头结构参数优化及选型

中国石化西南油气分公司工程技术研究院, 四川德阳 618000

基金项目:

国家科技重大专项"低渗油气田高效开发钻井技术"课题5"低渗气藏复杂地层高效钻井关键技术"(编号:2008ZX05022-005)部分研究成果

详细信息

作者简介:
肖国益(1964-),男,四川南充人,1989年毕业于西南石油学院钻井工程专业,高级工程师,西南石油局技术专家,主要从事深井、超深井钻井工程设计和气体钻井方面的研究.

中图分类号: TE921⁺.1
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出版历程
- 收稿日期: 2012-01-14
- 修回日期: 2012-05-04
- 刊出日期: 1899-12-31

Parameter Optimization and Selection of PDC Bits for Xujiahe Formation in Western Sichuan

Engineering Technology Insititute of Southwest Petroleum Branch, Sinopec, Deyang, Sichuan, 618000, China

摘要

摘要: 川西深层须家河组气藏主力储层埋藏深、地质条件复杂,尤其是其地层硬度高、可钻性差,致使钻头选型困难,机械钻速低。为提高须家河组地层机械钻速,针对地层岩性特征,利用ABAQUS软件建立了切削齿破岩有限元模型,结合钻头设计理论优化了PDC钻头结构参数,确定出了适合须家河组地层的钻头冠部轮廓、切削齿、刀翼数和保径特征等主要结构参数,提出了PDC钻头选型的关键特征。在此基础上,优选出了9个型号PDC钻头,形成了须家河组地层钻头系列化选型方案:须5段-须3段地层宜选用攻击性强同时具有较强抗研磨性和抗冲击性的PDC钻头,须2段地层宜选用高抗研磨性兼顾吃入能力和抗冲击性的混合布齿钻头。现场应用表明,42只优选钻头平均进尺增加27.57%,钻速提高40.19%,实现了须家河组地层钻井提速新突破。
- PDC钻头 /
- 钻头选型 /
- 机械钻速 /
- 须家河组
Abstract: Xujiahe formation(T3x5)in Western Sichuan,is a deep foramtion and rich in natural gas.Usual cone bits and PDC bits wear quickly,so they are unsuitable for this formation due to tight rock,high content of quartz and high abrasiveness.So it is difficult to select the suitable bits with high penetration rate.In order to increase ROP and shorten drilling cycle,the finite element model of cutter and rock were created by ABAQUS based on the rock properties and bit design theory.The key bit structure characteristics for Xujiahe formation such as crown profile,cutter structure,wing numbers,hydraulic structure and stability are determined in line with the bit design thoery.PDC bits with high aggressiveness as well as anti-abrasiveness and impact-resistance should be employed for formation T3x5-T3x3,hybrid cutter bits with high anti-abrasiveness used for formation T3x2.The application results indicate that selected bits increased footage by 27.57% and improve ROP by 40.19% on average.
- PDC bit /
- bit selection /
- penetration rate /
- Xujiahe formation

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参考文献(13)

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文章访问数: 2824
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川西须家河组地层PDC钻头结构参数优化及选型

作者简介: 肖国益(1964-),男,四川南充人,1989年毕业于西南石油学院钻井工程专业,高级工程师,西南石油局技术专家,主要从事深井、超深井钻井工程设计和气体钻井方面的研究.

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Parameter Optimization and Selection of PDC Bits for Xujiahe Formation in Western Sichuan

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目录

作者简介:
肖国益(1964-),男,四川南充人,1989年毕业于西南石油学院钻井工程专业,高级工程师,西南石油局技术专家,主要从事深井、超深井钻井工程设计和气体钻井方面的研究.