俄罗斯及中亚油田高含水期开采的特点及采取的有效提高采收率措施

近年来，俄罗斯原油储量发生了极大的变化。储量结构变差，工业级别的原油可采储量急剧下降。根据俄联邦燃料动力部的官方资料，难采储量(根据地质—物理特征和技术指标可以把具有难采储量的油藏划分为以下几种主要类型：低渗透油藏、高含水油藏、深层油藏、高粘油藏、气顶油藏)占剩余可采储量的40％以上，在整个平衡表储量中达到了60％以上，并仍在急剧增加。根据有关文献，其中高含水层中原油储量占难采储量的三分之一(34％)。

先进的MIT-MTT井下管柱损伤测井技术及应用

井下管柱损伤对油气井的使用寿命、作业安全影响显著，特别是在高硫化氢的地区，更容易发生油套管受腐蚀而损伤的情况，因此井下管柱损伤检测在油田开发中具有重要意义。SONDEX公司制造的MIT—MTT组合测井仪对检测油管壁厚、井径的变化有准确的诊断能力，可对各种地质和工程因素等造成的套损、腐蚀、结垢等进行理想的检测，具有完整的数据采集、处理、评价等功能，能够定量、准确地描绘管壁有效厚度和管柱径向的变形情况，并提供详实、直观、三维的现场解释报告。本文列举中亚某油田两口气井的实例，对MIT—MTT组合测井仪在现场采集的测井数据进行了详细的解释，分析评价出该两口气井管柱腐蚀损伤情况，解释结果表明MIT-MTT组合测井结果符合该地区井下管柱的实际情况，MIT—MTT组合测井是油气田开发生产中检测井下管柱安全的一种先进的手段。

Technology and Practice of Stabiliing Oil Production and Controlling Water Cut in Kalamkas Oilfield in Central Asia

In this paper, by in-depth geological research of Kalamkas Oilfield in Central Asia, the geological body has been re-ascertained; combined with fine study of reservoir engineering, based on the understanding of the distribution of remaining oil horizontal wells have been given full play to stabilizing oil production and controlling water cut, reducing the producing pressure drop, improving well productivity and other advantages, and the development and deployment has been optimized; horizontal wells have been applied to solve problems such as old well casing damages, shutting down wells, low-productivity and low- efficiency wells, and high water cut wells to improve the utilization rate of old wells; through separate layer system improved injection production pattern, adjustment wells have been optimized and deployed, and part measures wells have been preferably selected to tap the residual oil improve the degree of reserves control realize the stabilization of oil production and control of water cut in an old oilfield, and further improve the development effects.