K区块盐膏层钻井液体系技术研究  

Study on drilling fluid system of salt gypsum layer in K block

作　　者：王冬[1,2] 单进 杨峤峰 黄友亮[1,2] 乐明 

机构地区：[1]长江大学石油工程学院,湖北武汉430100 [2]油气钻采工程湖北省重点实验室,湖北武汉430100 [3]中原石油工程公司西南钻井分公司,河南濮阳457001 [4]中原石油工程公司钻井二公司,河南濮阳457001

出　　处：《化学工程师》2016年第12期47-49,共3页Chemical Engineer

摘　　要：K区块所钻井在钻遇盐膏层地层过程中遇到易掉块,机械钻速低,钻井周期长等难点。笔者基于该区块的钻进难点,对该区块的钻井液体系进行了流变性、抑制性及热稳定性的评价,并通过一系列对比研究表明通过向氯化钠饱和或欠饱和盐水钻井液中加入硫酸钠可以较好地控制石膏的溶解和维持钻井液性能稳定。所复配的钻井液体系值得在该区块后续的盐膏层钻井中进一步的推广应用。In the process of drilling in salt gypsum layer, the drilling in K block is easy to fall off, the me-chanical drilling speed is low, and the drilling cycle is long. The drilling difficulties based on the block, the block drilling fluid system were theology, inhibitory properties and thermal stability of the evaluation, and through a se- ries of comparative studies show through to sodium chloride saturated or undersaturated brine drilling fluid adding sodium sulfate can better control the dissolution of gypsum and maintain the stability of drilling fluid properties. The compound drilling fluid system is worthy of further popularization and application in the drilling of salt gypsum layers in the block.

关 键 词：盐膏层 钻井液 抑制性 推广 

分 类 号：TE242[石油与天然气工程—油气井工程]