提高浅井低温油层的固井质量工艺技术

为了提高浅井低温油层（即延安组油层）固井质量,通过对水泥添加剂和水泥浆体系反复筛选与评价,固井方案的研究与论证,在原来使用的水泥浆体系的基础上,研究出了适合于靖安油田、安塞油田浅油层的水泥浆体系和固井工艺技术,通过现场应用,固井质量达到优质,为靖安油田、安塞油田浅油层进一步开发提供了有力的技术支持。     

浅谈山区桥梁人工挖孔桩施工安全控制技术

山区桥梁建设所处环境较为复杂,在现场施工中采用人工挖孔桩施工安全控制技术,有助于现场施工的质量安全。论文对人工挖孔桩的技术优势与安全控制技术进行分析,并提出相应的安全管理策略。     

采油一厂边缘油井节能降耗技术在集输工艺中的应用

随着滚动开发的不断深入,老区地质调整能力降低,采油一厂的开发重点逐步转向边沿、偏远、零散区块,实施滚动扩边后,新区块离主力区块较远,地面系统不完善,单拉井点逐年增加,使单拉成本逐年增加,天然气外排资源浪费严重,安全、环保隐患突出,针对上述边缘区块油井集输存在着严重问题,研究出四种主要节能集输技术,解决了气大低产井进系统生产困难的难题,增油增气效果显著。     

综掘拐弯机后快速连续运输技术研究应用

本文介绍了综掘机拐弯机后快速连续运输的实现方式,阐述了运输安全技术措施。该方法实现了综掘拐弯快速连续运输,技术先进,效益显著。     

绳索取芯技术在韩城煤层气井中的应用

针对煤层气井取芯要求提芯时间短、收获率高、质量好等特点。以韩城煤层气勘探开发项目中的WLC20#为例介绍了煤层气绳索取芯钻井工艺、操作要领及施工成果。     

页岩气水平井最优长度研究

页岩气作为一种新兴能源,得到国家与各个能源公司的重视。我国页岩气资源十分丰富,但是我国的页岩气勘探开发刚刚起步。目前广泛采用水平井开发页岩气藏,采用较大的水平段长度可以获得较高的采收率和较大的采油速度,但成本必然相应地增加,采用较小的水平段长度,可以降低成本,但会影响采油速度和最终采收率。由此看来,对于某一具体的水平井,必然存在一个合理水平段长度。本文从采油工程的角度研究页岩气水平井段最优长度的确定方法。     

抽油机井检泵周期可靠性预测模型与实际应用

本文选用三参数威布尔分布建立了检泵周期概率密度分布模型,以全油田检泵作业井的检泵周期为统计样本,对检泵周期威布尔分布的参数值进行了回归分析,建立了检泵周期可靠性预测模型,预测可靠度与实际可靠度曲线吻合度较好。     

特殊井修套打捞技术研究与应用

在大修作业过程中,套变井经常遇到套管弯曲段达到200m左右,同时伴有错断、破裂、缩径等情况,严重影响修井时率。通过调查分析,研制针对性的高效铣锥、活动肘节、钻具保护短节、液压扩刀等工具,显著提高了大修施工效率。     

Recovery of the value of natural amenities: From oil fields to nature preserve

This study expands the existing literature on impact of environmental amenities and disamenities on the value of single family housing by temporally and spatially examining changes in the effect of nature and industry. The study area is bounded by a forest, a portion of which has been designated as a nature preserve and another portion which had various oil wells and was transformed into a nature preserve in 1994. Using market price data from sales transactions collected over a period of twenty-eight years, this study examines the changes in the impact of nature preserve and industrial site in the City of Whittier, CA before and after the conversion. A series of spatial hedonic models is examined in a longitudinal analyses to compare the effects of transformation and examine the recovery process over time across space.The results reveal that it took 10–12 years for the oil well site to recover its positive association to nearby single-family homes as a natural amenity. There was an initial increase of positive association between the site and the sales price of single-family houses upon the conversion. In contrast, positive association between the nature preserve and nearby properties had constantly decreased since the conversion. Ten years after the conversion, the positive impact of the former oil well sites surpassed the positive impact of the neighboring never-developed nature preserve.     

试论工程施工中人工挖孔桩的应用

人工挖孔桩施工方便、速度较快、不需要大型机械设备,挖孔桩要比木桩、混凝土打入桩震能力强,造价比冲锥冲孔、冲击锥冲孔、冲击钻机冲孔、回旋钻机钻孔、沉井基础节省。从而在公路、民用建筑中得到广泛应用。但挖孔桩井下作业条件差、环境恶劣、劳动强度大,安全和质量显得尤为重要。