GC14井优快钻井技术
渤南地区难动用井优快钻井技术研究
渤南地区难动用井优快钻井技术研究随着我国石油、天然气资源丰富程度的日趋下降，国内油气勘探工作日益格局化和复杂化，关注油气开发技术创新和进步便成为重中之重。
钻井作为石油勘探的重要环节之一，其技术改进和创新对于油气勘探和开发的顺利进行有着不可或缺的重要意义。
渤南地区，是我国东海油气资源的重要区域之一，然而由于区域地质条件的复杂与特殊，其油气开发难度较大，钻井技术的改进和创新颇具挑战性。
针对渤南地区难动用井的特点，本文从钻井技术角度出发，探讨了优快钻井技术在渤南地区的应用前景与技术实现。
一、渤南地区难动用井特点1. 复杂地质条件渤南地区位于华北地块和东南缘地区相遇的有利位置，是受华北地块、华南地块和华东地块地球动力作用影响的区域。
其地层构造复杂，断层发育，地下水及天然气含量高，常常会出现互层夹杂、难度大的钻井地层。
2. 高效勘探水平随着勘探技术的不断提高，渤南地区石油天然气勘探水平得到了极大提高，油气基础设施也在不断完善，而面临的随着新气藏勘探的增加而不断增加的难动用井数量对渤南地区的开发提出了更高的要求。
3. 高陡斜度套管人工定向控制弱渤南地区的钻井地层常常具有高陡的斜度和强烈的层位垂直变化，该地层的套管定向系统共振响应和“惯性加速”现象突出，导致套管固定强度不足，常常会出现动用失效的情况，从而导致钻井作业异常，锁井时间长，严重影响钻井的进展和效率。
二、优快钻井技术钻井在油气勘探中的重要地位显而易见，传统的钻井技术已经无法胜任目前日益复杂的地质条件和高难度井的开发，因此创新性的钻井技术需要被提出和使用。
在此种情况下，优快钻井技术应运而生，优快钻井技术是一项非常成功的钻井技术，旨在提高钻井效率和改善钻井质量。
其优点是具有高效、经济、安全等特点，因此在我国的石油勘探工作中得到了越来越广泛的应用，深受使用者的喜爱和信赖。
优快钻井技术主要包括以下方面：1. 快速冲孔技术。
冲孔是井钻进程中掌握得越好，就能更好地保证钻井的效率。
六盘水煤田煤层气水平井优快钻井技术
文章编号：1000 − 7393(2023)03 − 0275 − 09 DOI: 10.13639/j.odpt.202210027六盘水煤田煤层气水平井优快钻井技术梁龙军1,2 易旺1 陈捷1,2 高为1,2 胡海洋1 李凯1,21. 贵州省煤层气页岩气工程技术研究中心；2. 贵州省煤田地质局一五九队引用格式：梁龙军，易旺，陈捷，高为，胡海洋，李凯. 六盘水煤田煤层气水平井优快钻井技术［J ］. 石油钻采工艺，2023，45（3）：275-283.摘要：六盘水煤田地形起伏大，地层岩性复杂，在矿区内实施煤层气水平井钻井时一般借鉴外省经验，未对煤田地层岩石抗压强度、硬度、可钻性、内摩擦角等进行系统地研究分析，也无相应的地层岩石力学参数剖面资料可查，因此在现场应用中存在井位选择难、井场布置不合理、钻头与螺杆选型匹配性差、井底钻具组合(BHA)偏大及工程参数设计不合理等问题。
为了有效解决上述问题，采用了新型 “井工厂+矩阵布点+菱形设靶+124”的集约用地阶梯接续钻井模式及优化后的机械比能模型，深入分析煤田地层纵向上岩性的可钻性变化规律，建立煤田地层的可钻性预测表；对PDC 钻头刀翼数、切削齿大小及形状、布齿方式、螺杆及BHA 、工程参数、高性能钻井液体系等进行优化，以实现提高能量利用率、合理改进机械比能模型修正系数、延迟不稳定点出现的目的。
研究结果表明，采用新型阶梯接续钻井模式及优化后的工具材料、BHA 、工程参数、钻井液体系等，现场单井成本较之前节约了12.00%，各开次平均机械钻速提高了18.00%以上，实现了煤层气水平井的优快钻井、降本增效。
关键词：六盘水煤田；煤层气；水平井；优快钻井；岩石力学；井工厂；机械比能中图分类号：TE243 文献标识码： AOptimal and fast drilling technology for coalbed methane horizontal wellsin Liupanshui CoalfieldLIANG Longjun 1,2, YI Wang 1, CHEN Jie 1,2, GAO Wei 1,2, HU Haiyang 1, LI Kai 1,21. Guizhou Coalbed Methane and Shale Gas Engineering Technology Research Center , Guiyang 550009, Guizhou , China ;2. Team 159, Guizhou Coalfield Geology Bureau , Guiyang 550009, Guizhou , ChinaCitation: LIANG Longjun, YI Wang, CHEN Jie, GAO Wei, HU Haiyang, LI Kai. Optimal and fast drilling technology for coalbed methane horizontal wells in Liupanshui Coalfield ［J ］. Oil Drilling & Production Technology, 2023, 45(3): 275-283.Abstract: The Liupanshui Coalfield features significant terrain fluctuations and complex lithology. When implementing drilling for coalbed methane horizontal wells within the mining area, experiences from other provinces are generally referenced. However,there hasn't been a systematic study and analysis on the compressive strength, hardness, drillability, internal friction angle, and other rock mechanical properties of the coalfield strata, in addition, corresponding profiles of rock mechanical parameters are also unavailable. Therefore, there exists challenges in horizontal well placement, improper wellsite layout, poor compatibility between drill基金项目: 贵州省科技计划项目“贵州省煤层气(煤矿瓦斯)抽采提产增效关键技术及工程试验”(编号：黔科合战略找矿[2022]ZD001)；贵州省科技计划项目“贵州省煤层气地质工程一体化研究科技创新人才团队”(编号：黔科合平台人才CXTD[2022]016)；贵州省科技计划项目“六盘水地区煤层气储层渗透机制及压裂缝网优化改造关键技术研究与示范”(编号：黔科合支撑[2021]401)。
顺南井区优快钻井技术
顺南井区优快钻井技术I. Introduction- Overview of South Shunang Jing District and its drilling industry - Importance of optimizing drilling technology- Purpose and significance of the thesisII. Background and literature review- Overview of drilling technology and its development- Review of existing drilling techniques and their limitations- Introduction to the concept of "fast drilling technology"III. Theoretical basis of fast drilling technology- Principles of fast drilling technology- Description of the drilling system- Features and advantages of fast drilling technologyIV. Application of fast drilling technology in South Shunang Jing District- Overview of drilling projects and their constraints- Implementation of fast drilling technology in various drilling projects- Comparison of performance and benefits with traditional drilling technologyV. Conclusion and future prospects- Summary of major findings of the thesis- Implications and potential impact of fast drilling technology in the drilling industry- Future directions of research on fast drilling technologyVI. Reference- List of sources cited in the thesisI. IntroductionSouth Shunang Jing District is a major player in the Chinese drilling industry and one of the most important economic regions in the country. The drilling industry plays a critical role in the economic development of the region, and there is a growing need for more advanced drilling techniques to support drilling projects. Therefore, optimizing drilling technology is of paramount importance for both economic and strategic reasons.The purpose of this thesis is to explore the concept of "fast drilling technology," its theoretical basis, and its application in the drilling industry in the South Shunang Jing District. The thesis will examine the challenges facing the drilling industry, review existing drilling techniques and their limitations, and introduce the concept of fast drilling technology.II. Background and Literature ReviewDrilling technology has been evolving since the early 19th century, spurred by the growth of the oil industry. Advances in technology and drilling techniques have led to increased efficiency and safety in drilling operations. However, conventional drilling techniques still face limitations, including longer drilling times and higher costs, which are constraints that have become increasingly evident in South Shunang Jing District.Numerous studies have looked at the use of different drilling methods, such as air drilling, underbalanced drilling, and managedpressure drilling, among others. While these methods have shown improvements in drilling efficiency, they often require costly equipment or intricate procedures that add to the overall costs of the project. Fast drilling technology, on the other hand, offers an innovative approach to optimizing drilling efficiency.III. Theoretical Basis of Fast Drilling TechnologyFast drilling technology is a drilling technique that increases the rate of penetration (ROP) during drilling operations. The fundamental principle behind this technique is to reduce the energy consumed throughout the drilling process by introducing high drilling fluid flow rates and lower surface pressures. This approach reduces the amount of mechanical energy that's required to overcome the frictional forces between the drilling bit and the formation, hence increasing the ROP.Fast drilling technology relies on the drilling system to achieve its objectives. The drilling system includes the drilling rig, drill string, mud pumps, and drill bit. Fast drilling technology incorporates modifications to the drilling system to improve drilling efficiency such as optimizing the flow rate of drilling fluid, controlling the frictional losses of the drilling string, and maintaining optimal weight on bit. The benefits of fast drilling technology include shorter drilling times, reduced drilling costs, and improved environmental performance.IV. Application of Fast Drilling Technology in South Shunang Jing DistrictIn the South Shunang Jing District, the drilling industry faces a variety of challenges that can hinder drilling efficiency and overall success. Some of these obstacles include harsh geological conditions, complex geological formations, and a shortage of skilled labor. These challenges require innovative approaches to drilling that can overcome obstacles and ensure efficient and successful operations.Fast drilling technology has been applied in various drilling projects in the South Shunang Jing District, including oil and gas drilling operations. The results of these projects have demonstrated notable improvements in drilling efficiency, and significant cost reductions. The technology has also proven to be highly effective in reducing the environmental impact of drilling operations by decreasing the amount of drilling fluid used and limiting the amount of waste generated.The application of fast drilling technology in the South Shunang Jing District has significantly improved drilling efficiency, reduced costs, and enhanced environmental performance. This technology has the potential to revolutionize the drilling industry in this region and be applied to other regions around the globe.V. Conclusion and Future ProspectsIn conclusion, this thesis has explored the concept of fast drilling technology, its theoretical basis, and its application in the drilling industry in the South Shunang Jing District. The use of fast drilling technology has been shown to improve drilling efficiency, reduce costs, and limit environmental impact.Fast drilling technology is a relatively new and innovative approach to drilling operations. Going forward, additional research and development will be required to maximize the full potential of this technique fully. Enhancing drilling equipment and processes and developing innovative software will help to improve the performance of fast drilling technology even further. The innovative approach of the technology can help the drilling industry meet existing and future challenges to achieve more effective and sustainable drilling operations.VI. Reference[Insert reference list here]IV. Application of Fast Drilling Technology in South Shunang Jing DistrictThe application of fast drilling technology in the South Shunang Jing District has been driven by several factors, including the need to increase drilling efficiency, reduce costs, and improve environmental performance. The drilling industry in the region faces a variety of challenges that can hinder drilling operations, such as harsh geological conditions, complex geological formations, and a shortage of skilled labor. Fast drilling technology provides an innovative approach to these challenges by increasing drilling efficiency and reducing costs while limiting the environmental impact of drilling operations.One of the most significant benefits of fast drilling technology is shorter drilling times, which translates to lower drilling costs and increased efficiency. In the South Shunang Jing District, fastdrilling technology has been used in various drilling projects with remarkable success, increasing ROP by up to four times and significantly reducing drilling times. By reducing drilling times, fast drilling technology has also reduced the costs associated with drilling operations, such as rig rental, labor, and drilling fluid costs. In an industry where costs are a significant concern, fast drilling technology provides an innovative solution to reduce expenses while increasing drilling efficiency.Another benefit of fast drilling technology is its ability to limit the environmental impact of drilling operations. The use of this technology reduces the amount of drilling fluid needed for drilling operations, which decreases the volume of drilling waste generated. The reduction in the amount of drilling fluid also reduces the environmental impact of drilling operations by limiting the amount of harmful chemicals that are released into the environment. The waste generated from drilling can have significant environmental impacts such as soil contamination, water pollution, and air pollution. By limiting the volume of waste generated, fast drilling technology provides a more sustainable approach to drilling operations.Incorporating fast drilling technology into the drilling system can lead to improvements in drilling efficiency, reduced costs, increased environmental sustainability, and improved safety. With the continuous growth of the drilling industry in the South Shunang Jing District, the use of this technology has significant implications for the region's economic growth and development. However, the implementation of fast drilling technology is not without its challenges.One challenge of implementing fast drilling technology is the need for specialized equipment that can handle the high flow rates required in the drilling process. The fast drilling technology requires specialized mud pumps, rigs, and other drilling equipment that can handle high flow rates without clogging, damaging the equipment, or creating other operational issues. Such equipment can be costly and requires considerable investment to acquire, install and maintain. To maximize the benefits of fast drilling technology, companies must be willing to make significant capital investments in the equipment required to integrate this technology into their drilling operations.Another challenge is the need for skilled personnel who can operate and maintain the specialized equipment required for fast drilling technology. The integration of this technology into drilling operations not only requires changes in the drilling system but also changes in the drilling process. Personnel must be trained on the use of the specialized equipment and on the new drilling techniques and procedures associated with this technology. Given the current shortage of skilled labor in the drilling industry, companies may find it challenging to source and retain skilled personnel required for implementing fast drilling technology. Despite these challenges, the successful implementation of fast drilling technology in the South Shunang Jing District demonstrates the potential of this technology to revolutionize drilling operations. The benefits of fast drilling technology in terms of improved efficiency, reduced costs, and improved sustainability make it an attractive option for the drilling industry in the region.Going forward, companies in the drilling industry in the South Shunang Jing District will increasingly adopt this technique to gain a competitive edge.V. Conclusion and Future ProspectsThis thesis has explored the concept of fast drilling technology, its theoretical basis, and its application in the drilling industry in the South Shunang Jing District. Fast drilling technology is an innovative approach to drilling operations that offers significant benefits, including reduced drilling times, decreased costs, and improved sustainability. The technology has proven to be highly effective in the South Shunang Jing District, leading to the increased implementation of the technique in the region's drilling operations.Nonetheless, the implementation of this technology faces several challenges such as the need for specialized equipment and skilled personnel. To maximize the benefits of fast drilling technology, companies must be willing to make significant capital investments and attract skilled personnel to implement this technology. The innovation and development of drilling equipment and processes and the integration of innovative software will be critical to realizing the full potential of fast drilling technology.The future prospects of fast drilling technology are significant. As the technique becomes more established, its implementation in drilling operations will increase, leading to further improvements in drilling efficiency, reduced costs, and improved sustainability. Fast drilling technology represents a significant advancement indrilling operations that offers a more efficient, cost-effective, and sustainable approach to drilling. As companies increasingly adopt this technique, it will revolutionize the drilling industry, making drilling operations more efficient, productive and safer.。
渤南地区难动用井优快钻井技术研究
渤南地区难动用井优快钻井技术研究1. 引言1.1 渤南地区难动用井优快钻井技术研究的背景渤南地区作为我国重要的油气勘探区域之一，其复杂地质构造和高渗透岩石特点使得钻井难度较大。
传统的钻井技术在该地区难以有效应用，因此急需开发出适用于渤南地区的新型钻井技术。
优快钻井技术就是在这种背景下应运而生的。
过去的钻井过程中，渤南地区常常遇到困难，如岩层断层较多、地层剪切强度大、油层良好钻进并难以利用钻井液和钻井液散布，使得传统的钻井技术无法顺利开展。
为了解决这些问题，科研人员开始研究优快钻井技术，该技术通过改进钻井液配方、优化钻井参数等方式，能够提高钻井速度、降低钻井成本、减少事故风险，因此备受关注。
本文将对渤南地区难动用井优快钻井技术的研究进行深入探讨，旨在为该地区提供更有效的钻井技术支持，推动油气勘探工作的顺利进行。
1.2 研究意义渤南地区难动用井优快钻井技术的研究意义在于提高钻井效率和降低成本，对渤南地区油气资源的开发具有重要意义。
通过研究优快钻井技术，可以解决渤南地区传统钻井技术在复杂地质条件下难以应用的问题，提高钻井作业的成功率和效率。
此外，优快钻井技术还可以减少对环境的破坏，降低钻井作业所需的能源消耗，对于实现绿色、可持续发展具有积极意义。
通过深入研究渤南地区难动用井优快钻井技术，可以为提升我国油气勘探开发水平、保障能源安全做出贡献。
因此，开展该项研究具有重要的理论意义和实践价值，有助于推动渤南地区油气资源的有效开发利用，促进地区经济的持续发展和进步。
2. 正文2.1 渤南地区难动用井的特点分析渤南地区是中国北方沿海地区的一个重要石油勘探区域，难动用井是该地区常见的一种特殊钻井方式。
难动用井是指在特定地质条件下，井身稳定性较差、钻进速度慢、钻进效率低的井。
渤南地区难动用井的特点主要表现在以下几个方面：地质复杂性高。
渤南地区地质构造复杂，地层变化大，岩性多样，存在大量断层和裂隙，地下水位较高，这些都给钻井施工带来了极大困难。
优快钻井技术在歧口18-1项目的二次应用
DOI：10.16661/ki.1672-3791.2018.10.120优快钻井技术在歧口18-1项目的二次应用①潘光源(中海油田服务股份有限公司 天津 300459)摘 要：QK18-1油田作为95年的第一次优快试验项目，三口井平均钻井井深3561米，钻井工期平均为18.82天，实现了钻完井的突破和十大新技术。
渤海各油田多年以来的开采开发，作业环境较之前不断变化，井下压力关系更加复杂，防碰问题形势严峻，安全和管理难度增加。
解决这些油田开发的问题，单独依靠某一个专业是不可能完成的，必须要依靠油田开发大团队的力量才能解决，面对新的环境条件，弘扬优快大团队精神，将QK18-1油田作为优快二次试点项目，成立了由油藏、作业区、开发部、钻完井部、承包商等多专业、多部门、多公司组成的联合项目组，共同解决渤海油田开发的难题，探索和学习新的钻井技术和管理方法。
关键词：优快钻井技术 质量 随钻测量 高效 安全中图分类号：TE245 文献标识码：A 文章编号：1672-3791(2018)04(a)-0120-02渤海油田地质构造复杂，采用常规的开发技术，收效甚低。
为了从根本上扭转这一局面，从1995年开始引入了优快钻井的概念，通过本项目的实施，将摸索出一套适应当前环境的油田开发模式，建立一套适合老油田综合调整的技术体系，同时培养一批战斗力强、凝聚力强、执行力强、创新力强的团队。
1 项目特点1.1 老油田综合调整，防碰压力大QK18-1油田目前共有11口井，外挂12个槽口，钻井8口，平均井深3375m，主要目的层为沙河街组，地层较深，由于是在老油田中加密调整，浅层和深层防碰压力比新开发油田大。
计划工期为17d，奋斗目标为15d。
1.2 层间矛盾突出，安全钻井和储层保护难度大经过近二十年的开采，层间矛盾突出，同一层段压力相差10MPa以上，安全钻井和储层保护难度较大。
2 优快钻井技术特点在QK18-1调整井钻开始施工作业的过程中，应该使用PDC钻头，从表层17-1/2″的井眼开始钻，一直钻到二开、三开井段的12-1/4″和8-1/2″井眼，通过实践施工作业结果可以看到使用PDC钻头的效果要比普遍取钻头更好，能够获得更快的机械钻速。
211219783_海上调整井优快钻井技术及管理实践
56 近年来，随着新能源的快速发展，并逐步替代传统能源，能源供给竞争明显。
随着世界能源需求持续快速增长，油气开采仍将占据能源供给主要地位，钻完井投资占海上油气勘探开发生产投资的一半，因此，管控钻完井成本，进行钻完井降本增效是提高油气开采资产收益的关键一环[1-2]。
优快钻完井作为一种全新的钻完井模式，在发展中采用科学分析和积极进取的态度解决 钻井作业中的新问题，不断地创新思维、创新技术、创新管理、创新机制。
同时，钻井专业与其他专业部门、综合管理部门密切配合及相互渗透，形成一套对现场钻完井作业强有力的支持系统[3]。
本文以南海东部地区番禺4-2B油田6口加密井槽调整井为例，根据该区块地层特点、设备能力及作业难点，通过党建引领、管理提升、技术提升、区域协同等措施，高效完成该6口井的钻完井作业，通过总结和研究，建立了一套适应于调整井的优快钻完井配套技术，对于海上调整井降本增效具有借鉴和指导意义。
1 工程概况1.1 井身结构设计番禺4-2B油田6口加密井槽调整井设计井身结构为：一开打桩锤入Ø508.0mm隔水导管至泥面以下49m；二开钻表层Ø406.4mm井眼，下入Ø339.7mm表层套管；三开钻Ø311.15mm井眼至着陆井深，下入Ø244.5mm套管；四开钻Ø215.9mm井眼水平段至完钻井深；裸眼完井，优质筛管或流量控制装置（ICD）控水筛管防砂。
1.2 井槽设计番禺4-2B平台原井槽为5×7分布，槽口间距2.286m×2.286m，平台已无空余槽口。
为减缓油田产量递减速度，实施加密井槽调整井进一步完善主区生产井网成为维持油田稳产的主要手段[4]。
为充分利用平台资源，降低勘探开发成本，本次调整井新设置并安装6个内置井槽在平台现有井槽内部，安装在现有井槽中间 [5]。
海上调整井优快钻井技术及管理实践程忠1 雷鸿1 聂斌21.中海石油（中国）有限公司深圳分公司 广东 深圳 5180672.中海油能源发展股份有限公司工程技术深圳分公司 广东 深圳 518067 摘要：随着勘探开发迈入新区新领域，为实现新的跨越，海上油田开启了新优快钻完井征程，通过技术和管理的全面提升，实现降本增效的目的。
非常规井优快钻井技术
谢谢！
（二）优化轨迹控制技术
5、储层较薄，造斜力受地层走向、应力较大时，可采用单
弯动力钻具。
6、对于深井、长水平段的井，可采用直动力钻具复合钻进 以克服摩阻、扭矩。 7、无论采用哪种导向钻具，在底部钻柱中都应适当加入部 分钻铤，对控制轨迹平滑非常重要。
8、及时分析判断井眼轨迹变化趋势，合理选择、改变钻具
组合和钻进参数。
四、非常规水平井钻井提速技术
（三）优化钻井液体系
1、优选钻井液体系
致密砂岩油气藏以水基钻井液为主；
页岩油气藏以油基钻井液为主； 强抑制、高混油等优质钻井液体系是努力方向。
2、优化钻井液性能。
合理调控钻井液性能；
保持良好的流变性；
具有较强的抗温、抗地层流体污染能力等。
四、非常规水平井钻井提速技术
4、既要提高平均机械钻速，也要注重提高行程钻 速。 5、有条件的可采用空气或泡沫钻井技术。 6、水平段采用轴向振动推进工具，不宜采用水力 加压方式等。 7、小井径可采用特制钻具，以增加钻柱刚度等。
（例如：6吋井眼可采用特制4吋钻杆）
四、非常规水平井钻井提速技术
（五）强化故障的预防和处理
1、故障对井身质量造成的缺陷难以弥补，往往使
7、对井下故障和复杂情况，盲目处理、贻误时机 都会复杂化。
8、谨慎选择“浸泡解卡”法处理水平井段卡钻故 障等。
四、非常规水平井钻井提速技术
（六）优化完井作业和提高固井质量
1、优化完井作业工艺
（1）保证井眼轨迹平滑；（钻具结构、钻进方式等） （2）优化水平井段井眼清洁技术；（钻井液流变性、钻具 组合，循环时钻具活动方式等）
（二）集成应用成熟技术和现有装备
1. 优化钻机选择； 2. 优化井位、井场布置； 3. 优化施工工艺、技术（钻井液、轨迹测控等）。
海南福山油田优快钻井技术
中图分 类号 ： Ｅ２ 文 献标识 码 ： 文章 编号 ：Ｏ ４ ５１ （０ １ｌ一 Ｏ ６— ０ Ｔ Ｂ １Ｏ— ７６ ２１） ２ ０５ ３
海南福 山油 田 目前所钻地层 为第 四系、 上第 三系 （ 望楼 港组 、 灯楼 角组 、 角尾 组 、 洋 组 ） 下 和下 第 三 系 （ 涸 洲组 、 流沙 港组 ） 。钻 井 施 工 中 ， 下 复 杂事 故 频 发 ， 井 主 要 表 现为上 部地 层 涠洲 组 易 造 浆 、 经 ； 部 地 层 流二 缩 下 段 井壁 不稳 定 ， 大段 泥岩坍 塌严 重 ； 钻头 选型单 一 ， 平均 机 械钻 速普 遍偏 低 ； 向段 钻 头漂移 规律 复杂 等 。 畦 定 ： 以上种种问题 的存在， 制约着海南地 区钻 井速度 的提 高。通过调研 ， 对文献资料进行借鉴分析， 经过实钻检 验， 形成 了一套优快钻井技术。 １ 制约钻 井速 度 因素研 究及 对策 ・ １ １ 涠 洲 组复 杂情 况分 析及 对策 ． 涠洲组 大量 的胶 结不 好 的砂砾 岩 、 状砂 岩及 含砾 砾 细 砂岩 ， 在井 眼形 成之 后 ， 由于 其滤失 量 大 ， 在井 壁 上形 成 一层 厚 的滤饼 ， 缩 小 了 原 已形 成 的井 眼 。另 外 ， 而 涠 洲 组存 在 的泥岩 属于 软 泥 岩 ， 水 后膨 胀 ， 可使 井 径 吸 也 缩 小 。泥岩 水化 后分 散 在 钻 井 液 里 ， 稠化 严 重 ， 即所 谓 造 浆 ， 井 液 中有害 固相增 加 ， 钻 钻井 液性 能变差 ， 易在 更 井壁形成劣质泥饼， 缩小井眼。起钻过程 中阻卡严重 ， 划 眼过 程憋 泵 、 钻 。平 均 阻 卡力 ２０ ４０ Ｎ。起 钻 憋 ０￣ ０ｋ 后需多次正反划眼后才能通过， 如果操作不 当， 静止时 间长 ， 还极 易造 成粘 卡 。 根 据 以上情 况 ， 取 的对 策有 ： 采 钻 井液 方 面 ， 用 聚合 物 防塌 钻 井 液体 系 ， 点 是 采 重 控 制泥 浆地 层造 浆 ， 封堵 渗 透 性 好 的砂 砾 岩 地 层 ， 度 粘 控制原则为“ 低粘低切” 防止厚泥饼 的形成。处理剂方 ， 面应加 足大 分子 等控 制包 被剂 和 防塌 剂 材料 ， 提高 钻井 液 的抑制性 ， 同时加人超细碳酸钙 、 低荧光改 型沥青等
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GC14井优快钻井技术
刘博
【期刊名称】《石化技术》
【年(卷),期】2016(023)004
【摘 要】通过对TD地区GC区块钻井难点分析，提出了以钻头优选、复合钻井、
液动旋冲钻井为主的提速技术，取得了良好的施工效果。
【总页数】1页(P188-188)
【作 者】刘博
【作者单位】大庆钻探工程公司钻井一公司 黑龙江 大庆 163411
【正文语种】中 文
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