It is: the stand-by fermentation of refined flour; get another oil, the ratio of 1:3 to face-crisp; then cut into the core end of the tender green onions; fermentation to add a good base kneading dough, kneading until there is more to toughness, And Latin America growth, Hu add sesame oil, pulling the plane into a double agent; then flat surface by agents, including Health and pastries into the volume together, according to the flat, including live pigs into the leaf fat, diced green onion, salt and so on, that is, shut up pinch together Green circle pig into a cake.
做法是：把精面粉发酵待用；另取油、面以1：3的比例制酥；再把大葱嫩蕊切成末；把发酵好的面团加碱揉制，直至揉到有较强韧性时，拉成长条，抹上胡麻油，揪成一两重的面剂；再把面剂按扁，包入生油酥卷拢，按扁，包进生猪板油、大葱末、精盐等，捏拢收口即成圆形猪油饼生坯。
It is shown that in such cases the mud is always the main factor for core permeability damage. Removing the filtration cake of mud from the core surface leads to increasing the incursion depth of the slurry filtrate. The population of solid particles formed in the slurry filtrate in cont...
测定水泥浆滤液与岩心反应时生成的固体颗粒量和滤液对岩心渗透率的损害率，发现水泥降滤失剂木质素磺酸钠可减少滤液中固体颗粒析出量和对岩心的损害，CMC特别是RC800可增大固体颗粒析出量，加重滤液对岩心的损害。
The results show that the optimal reaction conditions were: temperature 60℃, the preparation formulation of agent was: natural vegetable gum/ crossking agent/ additiveⅠ/ additiveⅡ=0.92/0.007/0.05/0.025. The divering agent can be dissolved in water or fracturing, has an excellent salt-tolerant. The breakthrough pressure can reach 18.9 MPa when the formation of the cake thickness is 0.9 cm in the core flow experiment, the breakthrough pressure gradient is 21 MPa/cm, while increaseing the dosage can increase the breakthrough pressure. The performance of divering agent is better than the similar products at home and abroad. The structural of IPN for the solid diverting anget has been confirmed.
结果表明，制备转向剂的最佳工艺条件为：温度60℃，天然植物胶、交联剂、添加剂Ⅰ和添加剂Ⅱ的质量配比为92%：0.7%：5%：2.25%；转向剂能完全溶解于水或压裂液中，其耐盐性能较好；当形成0.9cm厚的滤饼时，突破压力为18.9Mpa，压力梯度为21MPa/cm，且随转向剂用量增加，突破压力相应增加；所制备的固体转向剂在性能上与国内外同类产品相当；初步证实了固体转向剂具有较好的互穿网络结构。
A dynamic method is used to study PRD drill-in fluid and the formation time of filter cake on the core and flushing resistance of the filter cake to completion fluids.
室内采用动态方法研究了PRD钻开液与在岩心端面上的滤饼形成时间及该滤饼耐各完井工作液的冲刷性；
Enhancing inner mud cake strength can significantly increase the pressure-bearing ability of core, and obviously improve the filtration pressure and strengthen fracture pressure gradient, which can enlarge the safe density window.
并能增强内泥饼封堵强度，从而达到提高岩心承压能力、漏失压力和破裂压力梯度，扩大安全密度窗口的目的。
Ultra-low permeability fluid can improve pressure bearing ability of core、leakage pressure and fracture pressure gradient by enhancing plugging strength of internal mud cake.
超低渗透钻井液通过增强内泥饼封堵强度，大幅度提高岩心承压能力，能提高漏失压力和破裂压力梯度。
Field samples were analyzed in laboratory and the results indicated that the acid-soluble ratio of drilling filter cake exceeded 80%, and the permeability recovery value of damaged core in vertical section of the same well reached over 75%.
室内分析现场取样，钻井液滤饼酸溶率超过80%；对同井直井段储层岩心进行伤害，经酸洗后岩心渗透率恢复率大干75%。
In many operations, the cake was squeezed into deep fracture and the rock occurred stress sensitivity damage, as a result the permeability recovery of fractured core is reduced obviously because the cake can not return easily, while the permeability recovery of bedrock is better.
重复作业时滤饼不断地向裂缝深部推进并因应力敏感损害而难返排，致使裂缝岩样渗透率恢复率降低明显，相反基块岩样一般仍可得到满意的渗透率恢复率。
There are eight methods: viscosity attenuation method, mud cake cleaning method, core permeability recovery method, determination of reduced sugar, carbon dioxide emissions, determination of dissolved oxygen determination method, laser particle size analysis method, mold method.
涉及到的评价方法有八种，即粘度衰减法、泥饼清除法、岩心渗透率恢复测定法、还原糖测定法、二氧化碳排量测定法、溶解氧测定法、激光粒度分析测定法、霉菌法。
Field samples were analyzed in laboratory and the results indicated that the acid-soluble ratio of drilling filter cake exceeded 80 %, and the permeability recovery value of damaged core in vertical section of the same well reached over 75 %.
室内分析现场取样，钻井液滤饼酸溶率超过80%；对同井直井段储层岩心进行伤害，经酸洗后岩心渗透率恢复率大干75%。