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Keywords CCSD;SLCORE-I;core recovery percent;coring with formation kept; 大陆科学钻探;松科1井;岩心收获率;保形取心;
core recovery percent 岩心收获率
Origination of fingering and remaining oil as well as their influnce on recovery percent are analyzed. 分析了指进、剩余油形成规律及对采出程度的影响。
The experiment shows the technique possessing high core recovery rate and quick drilling speed. 试验表明,该技术方法具有岩芯(样)采取率高、钻进速度快的特点。
Core recovery of deep broken limestone formation is very low due to the influence of its lithology, formation dip and tectonic earth stress. 深井灰岩破碎地层取心效果受地层岩性、地层倾角以及构造地应力对地层的挤压作用等因素影响较大,采用常规取心工具收获率低(邻井当深3井取心收获率仅有23%25)。
These relationships were transformed into those between water cut and recovery percent of recoverable reserves, and these curves investigated. 将它们变换为含水率与可采储量采出程度关系，并研究了曲线的图形特点。
Face discharge watercourse design is adopted in order to reduce core erosion by mud for increased rate of core recovery. 采用面泻式水道设计，减小泥浆对岩芯侵蚀，取芯收获率高；
The results show that there exists a multiplication relationship among the recovery percent, water cut of water flooding reservoir and the similarity criterions. 根据此关系建立了水驱油藏含水率与采出程度的经验关系式。
Raising the stability of outer core barrel is the main approach to extend the life of core bit and to raise core recovery and the footage of single core barrel. The outer core barrel with centralizer is an effective method to raise its stability. 提高外筒稳定性是延长取心钻头寿命、提高岩心收获率及单简进尺的最主要途径,而外筒加扶正器是提高其稳定性的有效方法。
Suitable for coring in medium hard formation with abrasiveness. Core recovery rate is high. 适用于带研磨性的中硬地层取芯，取芯收获率高。
A mathematical expression for such development indexes as recovery rates and recovery percent of reserve is established on the basis of the Arps decline production prediction model and the Arps decline development model is proposed. 本文在Arps递减产能预测模型的基础上提出了Arps递减开发模型，提出了开发速度，采出程度等开发指标的数学关系式。
Suitable for coring in very hard formation with abrasiveness. Core recovery rate is high. 适用于高等硬度及研磨性的地层取芯，取芯收获率高。
Higher core recovery is assisted in coring operations when this kind of bit is used for hole enlargement. 加深井钻进，用双心钻头可增大环空间隙，提高固井质量。
The coring tool is tripped in 26 times, with total coring footages of 205. 71m, recovered core of 168.29m and the average core recovery of 81.81%, the highest in the block. 共下取心工具 26次，取心总进尺205.;71m，收获岩心168， 29m，平均收获率81
That is, high core recovery and borehole wall stability would be mainly realized by new type fluidic coring tools and environmental protective drilling fluid system(Epm). 重点通过研制新型射流式取心钻具和环保型钻井液体系(EPM)来实现提高岩心采取率和孔壁稳定性的预期目标。
The new coring tool that made of glass fiber reinforced plastic is used to improve the coring recovery and integrity in the loose gravel formation in Liaohe Oilfield. 玻璃钢取心工具是专为提高辽河油田含砾石松散地层取心收获率和岩心完整性而研制的。
Field test shows that it's very effective and reliable, and compares with the offset wells, the coring recovery improved by 22.51%, and its main performances are advanced at home. 现场试验表明;该工具具有结构新颖、设计科学、使用可靠和取心收获率高的特点;与邻井相比;取心收获率提高了22.;51%25。
By use of new coring technologies, scientists can obtain a wide range of samples from rocks to fluids, while at the same time maintaining the in situ situation and enhancing core recovery. 在取芯技术上，取样范围更广，从各种岩石取样到地下流体的取样，并要求样品保持原始状态，同时确保获得更高的岩芯采收率；
The hard core in the party make all the decisions. 这个党的核心成员决定一切。
This concept is at the very core of her theory. 这个概念是她理论的核心。