随钻方位电阻率测井仪在渤海油田的应用与探索

Application of Directional Wave Propagation Resistivity Tool in Bohai Oilfield

针对渤海Q油田水平段钻进地质风险较高且现有随钻探边仪器的费用高、仪器少、边界探测深度有限的问题,引入中海油服最新研制的随钻方位电阻率测井仪DWPR。以此仪器优势为基础对传统作业思路进行升级,通过建立区域地质背景的电阻率正演地层模型和优化提升现场随钻探边作业技术体系,形成了具有渤海特色的随钻地质导向配套技术,使该仪器在实际作业中取得了较好的应用效果,有效提高了储层砂岩钻遇率,为后续的地质导向作业提供了新选择。

In view of the high geological risk of horizontal drilling in Q Oilfield of Bohai Sea,the high cost of existing tools while drilling,the fewer number of instruments,and the limited depth of boundary detection,the newly developed directional wave propagation resistivity tool(DWPR)is introduced to the project.At the same time,based on the advantages of the tool,the traditional operation idea is upgraded,the forward modeling of resistivity in regional geological background is established by optimizing and improving the technology system of working while drilling in the field,and the matching technology of geological guidance while drilling with Bohai characteristics has been formed,which make the tool obtain better application effect in the actual operation,effectively improve the drilling rate of sandstone reservoir,and provide a new choice for the subsequent geological guidance operation.