河南油田泌阳凹陷页岩油勘探开发思考  

Shale oil exploration and development for Miyang sag in Henan Oilfield

作　　者：方锡贤[1] 王成 

机构地区：[1]中国石化河南石油工程有限公司地质录井公司 [2]中国石油大港油田分公司工程造价中心

出　　处：《录井工程》2014年第1期6-9,29,共5页Mud Logging Engineering

摘　　要：基于能源安全需要,借鉴美国页岩油气勘探成功的经验,国内掀起了页岩气勘探开发的热潮,页岩油的勘探也逐渐升温。适应形势要求,在分析页岩油基本地质特征、储渗空间、开发方式的基础上,明确了页岩油层与油页岩和裂缝性页(泥)岩油层的区别;根据泌阳凹陷S 1井、Y 1井、Y 2井页岩油层钻探实践与效果,结合美国威利斯顿盆地泥盆系-石炭系巴肯组页岩油层特征提出,在选区方面目前应从只专注于成烃指标向成烃与含砂、灰质结合,在选层上应从相对纯页岩层向页岩层系中所夹致密砂层方向转变;对比分析Y 1井、Y 2井压裂投产资料后认为,长水平段与压裂产生的体积缝量不完全呈正相关,均存在优化空间,应充分利用多种资料进行压前评估;对于节能与环保,目前应通过攻关研究实现钻井液及压裂液的循环利用,减少水资源消耗,尽可能降低钻井液、压裂液对环境的影响,并逐步探索非耗水压裂方式。Based on the needs of energy security,making use of the American experience in successful oil and gas exploration of shale,an upsurge of shale gas exploration & development was set off in China,and so was shale oil.Adapting the needs of the developing conditions,on the basis of analyzing the basic geologic characteristic,permeability space of reservoirs and development mode of shale oil,the differences between shale reservoirs and oil shale and fractured mud(shale)reservoirs were defined.According to drilling practice and effect from shale reservoirs of wells S 1,Y 1and Y 2in Miyang sag and combining with the features of shale reservoirs from Bakken member of Devonian system-Carboniferous system,the author put forward two transitions from hydrocarbon generation index to the integration of hydrocarbon generation and the properties of containing sand in the aspect of selecting area,and from relative genuine shale to tight sand-layered shale in the aspect of selecting zones.After contrasting and analyzing the data of fracturing and putting into production from wells Y 1and Y 2,the author thought that long horizontal section and specific volumetric fractures produced by fracturing were not completely correlated,both ex-isted the optimized space,pre-fracture assessment should be made by using all kinds of data.At present,for energy saving and environmental protection,recycling of drilling fluid and fracturing fluid should be attained through the research,thus reducing the consumption of water resources and the effects of drilling fluid and fracturing fluid on the environment as much as possible,and gradually exploring the way of non-water fracturing.

关 键 词：泌阳凹陷 页岩油 勘探开发 选区与选层 水平段 压裂井段 优化评价 环保 

分 类 号：TE142[石油与天然气工程—油气勘探]