利用流体测井检测调整井地层孔隙压力方法研究  

Examination and Adjustment of Formation Pore Pressure through Fluid Logging

作　　者：纪宝华[1] 宗欣[1] 

机构地区：[1]大庆石油管理局钻探集团,黑龙江大庆163413

出　　处：《石油钻探技术》2007年第1期29-31,共3页Petroleum Drilling Techniques

摘　　要：大庆喇萨杏油田二次加密调整井投产以后,由于在泥岩层、含钙低渗透层压力预测及解释等方面存在不足,造成对一些高压层位判断不准确,小层孔隙压力计算误差大,无法准确设计合理的洗井液密度,针对高压层采取的防窜措施也不能有效发挥作用,导致部分井固井后管外冒和固井质量不好。在近千口井流体测井资料、几十口井RFT测压资料和相关室内试验的基础上,建立了流体测井解释模型,包括利用流体曲线识别异常高压层的位置、计算地层压力及流体侵入速度等关系模型,并在喇嘛甸、萨尔图和杏树岗油田的14个调整井钻井区块进行了应用,取得了良好的效果。After the secondary adjustment wells have been put into production in the Lasaxing Oilfield of Daqing, because of the existing deficiency in formation pressure prediction and explanation in mud and low permeability with calcium formation, the high pressure formation can not be identified accurately, the porous pressure can not be calculated reasonably and the mud density cannot be determined reasonably. The prevention measures for high pressure formation can not work effectively which causes some cemented wells with poor quality and fluid fled from the outer pipes. Based on well logging data of thousands wells, RFT pressure data of dozens wells and related lad tests, a fluid logging explanation model was build, including identification of high pressure location using fluid curves, calculation of formation pressure and influx velocity of formation fluids, etc.. This model is applied to 14 adjustment wells blocks in Lamadian, Saertu and Xingshugang and the results are good.

关 键 词：钻井液 测井数据 测井解释 调整井 地层压力预测 大庆油田 

分 类 号：TE26[石油与天然气工程—油气井工程]