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大庆油田M16区块开发的主要目的层为下白垩统姚家组一段的葡萄花油层,属于典型的低渗油层。为进一步了解大庆油田M16区块的矿物组成及开发过程中可能伤害地层的潜在因素,在测定粘土矿物含量的基础上,按照我国石油天然气行业标准,应用岩心流动试验装置对该区块地层进行了敏感性试验。试验结果表明,M16区块储层存在中等偏弱程度的速敏性,临界流速为1m/d,试验该区块的岩心水敏指数分别为82.54%、65.41%,为强水敏到中等偏强程度的水敏性。该区块在以后的开发及生产中需要控制进入地层流体的速度,以及流体的盐度和PH值,减少矿物质的敏感性对储层的伤害。
The main purpose of M16 block development in Daqing Oilfield is the Putaohua oil layer of the first member of the Lower Cretaceous Yaojia Formation and belongs to the typical low permeability oil layer. In order to further understand the mineral composition of M16 block in Daqing Oilfield and the potential factors that may damage the formation during the development process, based on the determination of clay mineral content, according to China’s oil and gas industry standards, Sensitivity test. The test results show that the M16 block has moderate sensitivity to moderate sensitivity and the critical flow rate is 1m / d. The core water susceptibility indices of the block in M16 block are 82.54% and 65.41% Strong degree of water sensitivity. In the future development and production of the block, it is necessary to control the rate of fluid entering the formation and the salinity and pH of the fluid so as to reduce the damage to the reservoir caused by the sensitivity of minerals.