气体组成对钻井液中水合物形成动力学影响

高书阳; 王成彪; 石秉忠; 何勇; 刘锐; 唐翠萍

doi:10.3969/j.issn.1001-5620.2015.05.005

气体组成对钻井液中水合物形成动力学影响

doi: 10.3969/j.issn.1001-5620.2015.05.005

1.
中国地质大学(北京), 北京
2. 中国石化石油工程技术研究院, 北京
3. 中科院广州能源研究所, 广州
4. 中国石化胜利石油工程有限公司钻井工程技术公司, 山东东营

基金项目: 中国石化重点科技攻关项目(P13010)。

详细信息

作者简介:
高书阳,男,在读博士生, 1984年生, 2010年获中国石油大学(北京)油气井工程专业硕士学位,主要从事井壁稳定与深水钻井液技术方面的研究。地址:北京市朝阳区北辰东路8号北辰时代大厦518室;邮政编码100101;电话(010)84988208;E-mail:gaosy.sripe@sinopec.com。

中图分类号: TE254
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出版历程
- 收稿日期: 2015-07-02
- 刊出日期: 2015-09-30

Effect of Gas Composition on the Formation of Gas Hydrates in Drilling Fluid

Room 518, North Star Times Tower, No. 8 Beichen Dong Road, Chaoyang District, Beijing 100101, China

摘要

摘要: 深水钻井中,极易在钻井液中生成天然气水合物,给深水钻井带来极大的危害。气体组成不同,形成水合物的条件也不相同,给深水钻井中水合物的防治带来较大的困难。利用研发的钻井液中天然气水合物形成抑制试验装置,研究了3种不同组成的气体在2种水基钻井液中形成天然气水合物的动力学过程。研究表明,在实验的3种气体中,绿峡谷气最易形成水合物,简单混合气次之,而甲烷气体最难形成水合物;相同条件下,同种气体在不同的钻井液中水合物生成具有明显的差异,因此必须对钻井液体系相平衡条件进行测试,并优选有效的水合物抑制剂。对于烷烃来说,分子量越大,越易于生成天然气水合物。
- 天然气水合物 /
- 深水钻井液 /
- 气体组成
Abstract: Gas hydrates are easy to form in deep-water drilling, imposing great dangers to the drilling operation. Conditions under which gas hydrates are formed vary with gas composition, making it difficult to prevent the formation of gas hydrates. Using a newly developed device, the kinetics of the formation of natural gas hydrates in two water base drilling fluids is studied. Of the three gas compositions, the "Green canyon gas" forms gas hydrates in drilling fluid most easily, methane is the most difficult forming gas hydrates, with the simple gas mixture in between. With other conditions being the same, it is much easier for alkane of higher molecular weight to form gas hydrate in drilling fluids.
- Natural gas hydrate /
- Deep water drilling fluid /
- Gas composition

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