Production And Application Of Daqing Oilfield Xingshugang Artificial Sandstone Cores

Daqing Oilfield Xingshugang genus and multiple layers of sandstone oilfields, blocks of different geological conditions; With the deepening of oilfield development, the number of injection wells and recovery wells increasing number; drilling of new wells and several measures have continued to increase. For any one block, from drilling to take measures as long as the fluid enters, should be subject to drilling and completion fluids and natural core compatibility test, then the core requirements also increased year by year, so to carry out the production and application of artificial sandstone cores for oil in the long run development of an extremely important strategic significance.This article obtains from the Daqing oilfield geology Xingshugang start to check Xing 2-1- natural core properties, lithology and particle size distribution as the basis for the production of synthetic cores. Optimizing the scattered cementing the original artificial core manufacturing method and dispersion of mineral cementation artificial core production technology, has developed a new type of silicate composite cementing agent, and cementing agent was determined by the experiment for not less than 19 g. the ultimate success of the production a number of physical parameters, the bare pressure bearing strength, the scrap rate and other parameters of natural and artificial core similar to the core.carried out a comparative analysis of the content and design of artificial core lithology actual content; Natural and Artificial Core porosity comparative analysis; Natural and Artificial Core wettability comparative evaluation test; Natural and Artificial Core comparative evaluation of the sensitivity of the experiment; natural core and the comparative evaluation of experimental artificial core damage; acid-soluble contrast evaluation test of natural and artificial core; Natural cores and Artificial Core profile control agent plugging contrast evaluation experiment research. Validation of artificial core and natural core in the content of the lithology, pore parameters, wettability, sensitivity, seal, acid soluble and damage and other similar or similar, can replace natural core production engineering measures of indoor simulation experiment. Examples in artificial core and core applications in "proppant embedment fractured shale reservoirs on short-term conductivity of" experiment, to fully meet the requirements of various experimental parameters.