摘要：【中文】本发明涉及一种固井作业用低密度水泥浆和固井作业用水泥组合物，属于油井钻井工程技术领域。本发明的固井作业用低密度水泥浆，包括水和以下重量份数的组分：油井水泥70～100份、超细水泥0～30份、减轻材料35～80份、微硅15～20份；所述减轻材料包括漂珠、玻璃微珠中的至少一种。该水泥浆的各组分材料性能好、添加比例适中，通过各组分材料制得的水泥浆密度可达到1.15～1.25g/cm³，且水泥浆的稳定性高、流动性好、强度高，进而可降低固井漏失风险，提高固井质量及顶替效率。 【EN】The invention relates to low-density cement slurry for well cementation operation and a cement composition for the well cementation operation, belonging to the technical field of oil well drilling engineering. The low-density cement slurry for well cementation comprises water and the following components in parts by weight: 70-100 parts of oil well cement, 0-30 parts of superfine cement, 35-80 parts of lightening material and 15-20 parts of micro-silicon; the lightening material comprises at least one of floating beads and glass beads. The cement paste has the advantages that the performance of each component material is good, the addition proportion is moderate, and the density of the cement paste prepared from each component material can reach 1.15-1.25g/cm³And the cement slurry has high stability, good fluidity and high strength, so that the risk of well cementation loss can be reduced, and the well cementation quality and the replacement efficiency are improved.

摘要：【中文】本发明涉及一种直流电弧等离子体电源及系统，该电源及系统包括依次连接的输入整流模块、逆变模块、高频变压模块、输出整流模块和电源输出端，还包括电压补偿模块，该电压补偿模块的补偿电压输出端与输出整流模块的直流端串联设置，所述电压补偿模块的补偿电压输出端与所述输出整流模块的直流端串联设置后的电压输出端连接所述电源输出端，当所述输出整流模块的直流端输出直流起弧电压的同时，电压补偿模块输出与所述直流起弧电压方向相同的补偿电压。本发明中的电压补偿模块能够增加起弧时所需的高电压，保证了电弧放电的可靠完成。 【EN】The invention relates to a direct current arc plasma power supply and a system, wherein the power supply and the system comprise an input rectifying module, an inversion module, a high-frequency transformation module, an output rectifying module, a power output end and a voltage compensation module which are sequentially connected, a compensation voltage output end of the voltage compensation module is connected with a direct current end of the output rectifying module in series, a voltage output end of the voltage compensation module after the compensation voltage output end of the voltage compensation module is connected with the direct current end of the output rectifying module in series is connected with the power output end, and when the direct current end of the output rectifying module outputs direct current arcing voltage, the voltage compensation module outputs compensation voltage in the same direction as the direct current arcing voltage. The voltage compensation module can increase the high voltage required during arcing, and ensures reliable completion of arc discharge.

摘要：【中文】本发明涉及一种用于钻井裂缝性漏失的堵漏剂及堵漏液。该堵漏剂主要由以下重量份的组分组成：水渣100份，减轻剂10~20份，微硅粉10~15份，激活剂7~10份，降失水剂1.5~3份，增强剂2~4份，缓凝剂1~2份，提粘剂0.5~2份，纤维3~6份。本发明所得堵漏剂针对钻井裂缝性漏失具有以下优点：配方简单可调，大大提高了水渣的使用量，减少了固体废弃物对环境的污染，相比水泥浆堵漏得到的强度适中，扫塞效率高，且与钾铵基钻井液、硅酸盐钻井液均有较好的相容性，对钻井液性能改变小，有效解决水泥浆堵漏后污染钻井液的问题。 【EN】The invention relates to a plugging agent and a plugging liquid for drilling fracture loss. The plugging agent mainly comprises the following components in parts by weight: 100 parts of water granulated slag, 10-20 parts of a lightening admixture, 10-15 parts of micro silicon powder, 7-10 parts of an activator, 1.5-3 parts of a fluid loss agent, 2-4 parts of a reinforcing agent, 1-2 parts of a retarder, 0.5-2 parts of a viscosity enhancer and 3-6 parts of fibers. The plugging agent obtained by the invention has the following advantages aiming at the fractured loss of the drilling well: the formula is simple and adjustable, the using amount of the granulating slag is greatly improved, the pollution of solid wastes to the environment is reduced, compared with cement paste plugging, the obtained strength is moderate, the plug sweeping efficiency is high, the drilling fluid plugging agent has good compatibility with potassium ammonium base drilling fluid and silicate drilling fluid, the drilling fluid performance is slightly changed, and the problem that the drilling fluid is polluted after the cement paste plugging is effectively solved.

摘要：【中文】本发明提供一种基于可控震源震动感应的地表物性区分方法。包括：采集工区各典型地表震动点的感应刚度和感应粘度；将所述不同震动点的感应刚度和感应粘度绘制到同一个平面坐标系中，得到物性区分图；根据所述物性区分图将工区划分为不同物性地表类型或将同一种物性地表类型进一步划分为不同物性区域。本发明根据某一地表的物性在物性图上所处的位置特征，确定其所属物性种类，以此定量划分地表地震条件类型。相比传统的人为查看地表岩性定性区分地表的方法，本发明的方法在理论机制上和可控震源震动系统、震动效果直接相关，科学合理，明确可靠，对于可控震源的生产方法设计优化和实际生产效果提高具有重大指导意义。 【EN】The invention provides a method for distinguishing surface physical properties based on vibroseis vibration induction. The method comprises the following steps: acquiring the induction rigidity and the induction viscosity of each typical earth surface vibration point in a work area; drawing the induced stiffness and the induced viscosity of different vibration points into the same plane coordinate system to obtain a physical property distinguishing diagram; and dividing the work area into different physical property earth surface types or further dividing the same physical property earth surface type into different physical property areas according to the physical property region diagram. The invention determines the physical property type of a certain earth surface according to the position characteristics of the physical property on the physical property diagram, thereby quantitatively dividing the earth surface seismic condition type. Compared with the traditional method for qualitatively distinguishing the earth surface by manually checking the lithological character of the earth surface, the method disclosed by the invention is directly related to a vibroseis vibration system and a vibration effect on a theoretical mechanism, is scientific, reasonable, clear and reliable, and has great guiding significance for design optimization and actual production effect improvement of a vibroseis production method.