塔河油田及周缘超深井井身结构优化设计

易浩; 杜欢; 贾晓斌; 罗发强

doi:10.11911/syztjs.201501013

塔河油田及周缘超深井井身结构优化设计

1.
中国石化西北油田分公司石油工程技术研究院, 新疆乌鲁木齐 830011;
2.
中国石化西北油田分公司钻井完井工程管理处, 新疆乌鲁木齐 830011

详细信息

作者简介:
易浩(1980-),男,湖南岳阳人,2002年毕业于西南石油学院石油工程专业,2005年获西南石油学院油气井工程专业硕士学位,高级工程师,主要从事钻井工程设计及相关研究工作。

中图分类号: TE22
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出版历程
- 收稿日期: 2014-08-27
- 刊出日期: 1899-12-31

The Optimal Design of a Casing Program for Ultra-Deep Wells in the Tahe Oilfield and Its Periphery

1.
Research Institute of Petroleum Engineering, Sinopec Northwest Oilfield Company, Urumqi, Xinjiang, 830011, China;
2.
Drilling and Completion Engineering Department, Sinopec Northwest Oilfield Company, Urumqi, Xinjiang, 830011, China

摘要

摘要: 随着塔河油田及周缘勘探开发的深入及勘探领域的外扩,油藏埋深不断增加,原有井身结构开始显现出其局限性,并影响钻井提速和钻井安全。为解决这一问题,根据具体地层情况,结合"自下而上"和"自上而下"井身结构设计方法,根据地层压力分布情况和必封点确定表层套管、技术套管和油层套管的直径和下深,将四开井身结构简化为三开井身结构,将φ177.8 mm套管优化为φ193.7 mm套管,形成了适合塔河油田主体非盐区等地质条件相对简单区块超深井高效钻井的φ193.7 mm套管直下三开井身结构;采用φ265.1 mm或φ206.4 mm套管封隔盐膏层,形成了适合塔河油田主体盐体分布区超深盐层井优快钻井的"长裸眼穿盐"和"专封盐膏层"井身结构;采用φ273.1 mm(φ311.1 mm)、φ206.4 mm(φ241.3 mm或φ215.9 mm)等非常规套管-井眼尺寸,形成了适合地质条件复杂区块超深井安全钻井的井身结构。通过简化井身结构、优化套管直径及下深,实现了地质条件相对简单区块的钻井提速、提效目的;通过优化非常规井身结构,确保了在地质条件复杂区块的安全钻进。
- 超深井 /
- 盐膏层 /
- 火成岩 /
- 井身结构 /
- 优化设计
Abstract: With the expansion and extension of exploration and development in the Tahe Oilfield and its periphery, the original casing program revealed it had limitations in the deeper reservoir, affecting drilling speed and safety. For specific formations, based on the bottom-up and top-down casing program design methods, and considering the formation pressure distribution and setting position, the size and running depth of surface, intermediate and production casings were determined.The original four-stage casing program was simplified to a three-stage one. Specifically, by optimizing φ177.8 mm casing to φ193.7 mm, a new three-stage casing program was designed for high-efficient drilling of ultra-deep wells in areas in simple geological conditions, such as the non-salt area in the Tahe Oilfield. Using φ265.1 mm or φ206.4 mm casing to isolate salt-gypsum layer, a casing program of long open hole through salt-gypsum layer and special casing sealing salt-gypsum layer was designed for fast drilling of ultra-deep wells in salt areas in the Tahe Oilfield. With unconventional casings of φ273.1 mm(for φ311.1 mm hole)and φ206.4 mm (for φ241.3 mm or φ215.9 mm hole), a casing program was designed for the safe drilling of ultra-deep wells in areas under complex conditions.By simplifying casing program and optimizing the size and running depth of casing, the drilling speed and efficiency could be improved in areas with relatively simple geological conditions.By optimizing the unconventional casing program, safe drilling could be conducted in areas with complex geological conditions.
- ultra-deep well /
- evaporite bed /
- igneous rock /
- casing program /
- optimal design

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参考文献(15)

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塔河油田及周缘超深井井身结构优化设计

作者简介: 易浩(1980-),男,湖南岳阳人,2002年毕业于西南石油学院石油工程专业,2005年获西南石油学院油气井工程专业硕士学位,高级工程师,主要从事钻井工程设计及相关研究工作。

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出版历程

The Optimal Design of a Casing Program for Ultra-Deep Wells in the Tahe Oilfield and Its Periphery

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出版历程

目录

作者简介:
易浩(1980-),男,湖南岳阳人,2002年毕业于西南石油学院石油工程专业,2005年获西南石油学院油气井工程专业硕士学位,高级工程师,主要从事钻井工程设计及相关研究工作。