| 王培义.东濮凹陷马厂地区废弃井改造条件分析—以马古6井为例[J].地质与勘探,2017,53(1):171-178 |
| 东濮凹陷马厂地区废弃井改造条件分析—以马古6井为例 |
| Analysis of reform conditions for abandoned wells the Machang area, Dongpu Depressiona: An example of well Magu 6 |
| 投稿时间：2016-05-10 修订日期：2016-11-16 |
| DOI：10.12134/j.dzykt.2017.01.018 |
| 中文关键词: 马厂地区 废弃井 地热地质 工程改造 |
| 英文关键词: Machang area, abandoned well, geothermal condition, engineering reform |
| 基金项目:中石化科技部项目:废弃井改造成地热井关键技术研究(合同编号JP14002)资助 |
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| 中文摘要: |
| 地热能因其清洁、低碳、可再生的特点，其开发利用逐渐被人们重视。而随着油田开发进入晚期，油田含水率以及废井、弃井数量逐年增加，如果将油区内的废弃井改造成为地热井，意义重大。本研究以东濮凹陷马厂地区马古6井为研究对象，在研究了马厂地区地热地质的基础上，利用地震、测井以及试油资料分析了马古6井构造、沉积以及地热条件，结果表明马古6井具有较好的地质改造条件，但同时存在热水矿化度高的特征，在后期开发过程中需要做好防腐防垢的措施。通过对马古6井井身结构分析认为，其完钻井深、水层位置以及套管结构，均有利于地热井工程改造。并对其井口、井筒、产水层以及泵室等方面工程改造条件提出了改造建议。 |
| 英文摘要: |
| Increasing attention is focused on development and use of geothermal energy because its clean, low-carbon, and reproducible features. During the later stage of oilfield development, with water cut increasing, a large number of wells are abandoned. The engineering reform which changes the abandoned wells into geothermal wells is very meaningful. Based on geothermal geological background of the Machang area and seismic, logging and oil-testing data, this research concentrated on the well Magu 6 to analyze its structural, sedimentary and geothermal conditions. The results show pretty good reworked geological conditions and high hot water salinity in Magu6 Well. Therefore the measures to prevent corrosion and incrustation should be taken in the subsequent development process. By analyzing the drilling depth, rich water-bearing layers, and casing structure of well Magu 6, the wellbore structure is favorable for engineering modification. Considering these conditions of wellhead, wellbore, water-bearing layers and pump chamber, some targeted suggestions are offered. |
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