雁探1“四高”井钻井液应用技术

李广冀; 张民立; 李树峰; 王锋; 郝少军; 王威; 李秋明

doi:10.3969/j.issn.1001-5620.2018.04.004

雁探1“四高”井钻井液应用技术

doi: 10.3969/j.issn.1001-5620.2018.04.004

1. 中国石油集团渤海钻探泥浆技术服务分公司, 天津 300280;
2. 中国石油青海油田分公司勘探事业部, 甘肃敦煌 736200;
3. 中国石油青海油田分公司钻采工艺研究院, 甘肃敦煌 736202

详细信息

作者简介:
李广冀,技师,1971年生,现在从事钻井液技术应用工作。电话17736462120;E-mail:sanbeiaz@sina.com。

通讯作者:
张民立,电话(022)25973099

中图分类号: TE254.3
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出版历程
- 收稿日期: 2018-04-05
- 刊出日期: 2018-07-30

Drilling Fluid Technology for “Four-High” Well Yantan-1

1. Drilling Fluid Technology Services of CNPC Bohai Drilling Engineering Company Limited, Dagang, Tianjin 300280;
2. Exploration Division of PetroChina Qinghai Oilfield Company, Dunhuang, Gansu 736200;
3. Institute on Drilling & Production of QingHai Oil Field Branch, CNPC, Dunhuang, Gansu 736202

摘要

摘要: 雁探1井是中国石油天然气股份有限公司青海油田分公司的一口重点矿权保护井，是青海油田柴达木盆地一里坪地区落雁山构造一口四开直井型风险井，完钻井深为5 909.95 m，钻探主要目的是探索落雁山构造E₃²～N₁含油气性；了解落雁山地区古-新近系暗色泥岩发育情况以及生烃能力，为下步盆地腹部大型区带热成因气勘探研究及部署提供依据。该井地质条件复杂，没有任何实钻参考资料，存在高温、高密度、高压盐水层、高浓度CO₂等叠加复杂因素，实际使用钻井液密度高达2.50 g/cm³，井底实测温度高达205℃，CO₂侵高达100%，加之多层高压盐水存在，是一口典型的“四高”井，钻井施工难度极大。优选采用了BH-WEI钻井液体系，围绕高温稳定性、抗酸性气体污染、抗盐水污染、高密度流变性、滤失量与流变性矛盾等技术难点，精细调整钻井液配方及维护处理措施，较好地解决了一系列技术难题和矛盾，顺利钻至设计井深5 700 m，后加深钻进至5 909.95 m突遇设计外的异常高压盐水层，由于关井压井时间过长，事故完井。该井技术难点典型，积累了宝贵的现场施工经验，具有很好的借鉴指导意义。
- 柴达木盆地 /
- 抗“四高”钻井液 /
- 抑制性 /
- 井壁稳定 /
- 流变性
Abstract: The well Yantan-1 is a key well of mining rights protection of PetroChina Qinghai Oilfield Company. It is a vertical fourinterval exploration well drilled in the Luoyanshan structure in Yiliping in Qaidam Basin. The well was drilled to 5,909.95 m. The objectives of the well were to ascertain the potential of oil and gas production of the Luoyanshan Structure E₃²-N₁; to understand the Since the well was shut in and killed in a prolonged time, the well had to be abnormally completed. Technical difficulties encountered during the drilling of this well are quite typical, and valuable experiences gained from the field operation are of good reference value in dealing with the same drilling difficulties. developmental state and hydrocarbon-generating potential of the Paleogene-Neogene dark-colored mudstones in Luoyanshan area, which will provide bases on which study and deployment of thermogenic gas exploration in the large-scale belt zone in the hinterland of Qaidam Basin can be performed in the future. Geological conditions of this well are quite complex, and no drilling data are available for reference. As a typical "four-high" well, the actual mud density used during drilling was as high as 2.50 g/cm³, the bottom hole temperature measured was as high as 205℃, CO₂ concentration of the mud was 100% during CO₂ invasion, and multiple high pressure salt water zones were encountered. A BH-WEI drilling fluid was selected to deal with these difficulties. Formulation of the mud and maintenance of the properties of the mud were focused on technical issues such as high temperature stability, resistance to sour gas contamination, resistance to salt water contamination, mud rheology at high density and filtration control. By elaborate adjustment of mud formulation and mud property maintenance, these technical difficulties were successfully resolved, and the well was successfully drilled to 5,700 m. When the well was then deepened to 5,909.95 m, an abnormally high pressure saltwater zone was encountered. Since the well was shut in and killed in a prolonged time, the well had to be abnormally completed. Technical difficulties encountered during the drilling of this well are quite typical, and valuable experiences gained from the field operation are of good reference value in dealing with the same drilling difficulties. Key words Qaidam Basin; Organic salt drilling fluid; Ultra-high density drilling fluid; High temperature; Salt water invasion; CO₂ invasion; Borehole wall stabilization; Rheology
- Qaidam Basin /
- Organic salt drilling fluid /
- Ultra-high density drilling fluid /
- High temperature /
- Salt water invasion

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参考文献(13)

[1]	李广冀,张民立、张酉铖,等. 塔里木油田牙哈地区钻井液技术[C]. 全国钻井液完井液技术交流研讨会论文集. 北京:中国石化出版社,2014:678-684. LI Guangji, ZHANG Minli, ZHANG Youcheng et al. The drilling fluid technology in tarium basin yaha district[C]. The Symposium of National Drilling Fluid Technology Conference. Beijing:China Petrochemical Press, 2014:678 -684.
[2]	张民立,穆剑雷,尹达,等.BH-ATH"三高"钻井液的研究与应用[J]. 钻井液与完井液,2011,27(6):42-45. ZHANG Minli, MU Jianlei, YIN Da, et al. BH-ATH the study and application of the high risk, high pressure and high sulpher composition drilling fluid[J].Drilling Fluid & Completion Fluid, 2011,27(6):42-45.
[3]	张民立,艾正青,王威,等. 高陡构造、三高、窄窗口地层克深15井钻井液技术[J]. 钻井液与完井液, 2016,27(6):42-45. ZHANG Minli, AI Zhengqing, WANG Wei, et al. The drilling fluid technology of Keshen 15 well in steep structure high risk high pressure and high sulpher composition formation[J].Drilling Fluid & Completion Fluid, 2016,27(6):42-45.
[4]	王信,张民立,王强,等.青海柴达木盆地三高井钻井液技术[J]. 钻井液与完井液,2016,27(6):42-45. WANG Xin, ZHANG Minli, WANG Qiang, et al. The drilling fluid technology of high risk high pressure and high sulpher composition wells in Qinghai Qaidam basin[J]. Drilling Fluid & Completion Fluid, 2016,27(6):42-45.
[5]	姚少全,汪世国,张毅,等. 有机盐钻井液技术[J]. 西部探矿工程,2003,86(7):73-76. YAO Shaoquan, WANG Shiguo, ZHANG Yi, et al. Organic Salt Drilling Fluid Technology[J]. Western Exploration Project, 2003,86(7):73-76.
[6]	付晓泰,王振平,夏国朝. 天然气组分的水合常数、水合热及理论溶解度[J]. 石油学报,1998,19(1):79-84. FU Xiaotai, WANG Zhenpin, XIA Guochao. Hydration constant of natural gas components Hydration heat and theoretical solubility[J]. Journal of Petroleum,1998, 19(1):79-84.
[7]	周光正,王伟忠,穆剑雷,等. 钻井液受碳酸根/碳酸氢根污染的探讨[J]. 钻井液与完井液,2010,27(6):42-45. ZHOU Guangzheng, WANG Weizhong,MU Jianlei, et al. Discussion on the contamination of drilling fluid by carbonate/bicarbonate[J]. Drilling Fluid and Well Completion Fluid, 2010, 27(6):42-45.
[8]	冯丽,雷伏涛,祝学飞,等. 碳酸根、碳酸氢根污染的钻井液处理及机理研究[J]. 天然气与石油,2015, 33(2):53-55 ,88. FENG Li, LEI Futao, ZHU Xuefei, et al. Drilling fluid treatment and mechanism study of carbonate and bicarbonate contamination polution[J]. Natural Gas and Petroleum,2015,33(2):53-55,88.
[9]	范泓澈,黄志龙,袁剑,等. 高温高压条件下甲烷和二氧化碳溶解度试验[J]. 中国石油大学学报(自然科学版),2011,35(2):6-11,19. FAN Hongche, HUANG Zhilong, YUAN Jian, et al. The experiment of testing methane and carbon dioxide solubility under high tempture and high pressure[J]. Journal of China University of Petroleum (Natural Science Edition),2011,35(2):6-11,19.
[10]	黄志龙,黄保家,高岗,等. 莺歌海盆地浅层气藏二氧化碳分布特征及其原因分析[J]. 现代地质,2010, 24(6):1140-1147. HUANG Zhilong, HUANG Baojia, GAO Gang, et al. Distribution characteristics and causes of carbon dioxide in shallow gas reservoirs in Yinggehai basin[J]. Modern Geology,2010,24(6):1140-1147.
[11]	吴乐,徐同台,韩斅,等. 黄原胶高温稳定性的影响因素[J]. 钻井液与完井液,2011,28(6):77-80. WU Le,XU Tongtai, HAN Xiao. Factors affecting the high temperature stability of xanthan gum[J].Drilling Fluid & Completion Fluid,2011,28(6):77-80.
[12]	张民立,尹达,李磊,等. 环保型水基钻井液在中国西部油田的应用[C]. 中国石油化工联合会,第六届环保钻井液及废弃物处理技术研讨会,中国银川,2016年7月28-30日. ZHANG Minli, YIN Da, LI Lei, et al. The application of environment friendly water-based drilling fluid in China west oil field[C]. China Petrochemical Federation, the 6th Environmental Drilling Fluid and Waste Treatment Technology Seminar. Yinchuan China,2016.7. 28-30.
[13]	张民立,王灿,王信,等. 抗240℃高温的高密度复合有机盐钻井液及其配制方法:中国,CN106381136A[P]. 2017-11 -07. ZHANG Minli, WANG Can, WANG Xin,et al. The drilling fluid and its preparation of high-density composite and organic salt drilling fluid resistant to 240℃ high temperature:China,CN106381136A[P].2017-11-07.