岩石非开挖冲击回转导向钻进施工工艺

详细介绍了采用潜孔锤冲击回转方法在岩石地层中实施定向钻进非开挖铺管的施工工艺,包括设备配置、仪器选用、造斜机理、清理岩屑和孔内事故处理等。     

Cenozoic volcanic rocks in the Belog Co area, Qiangtang, northern Tibet, China： Petrochemical evidence for partial melting of the mantle-crust transition zone

Neogene volcanic rocks in the Belog Co area, Qiangtang, northern Tibet, are represented by a typical intermediate-basic and intermediate alkaline rock association, with latite-trachyte as the main rock type. The results of chemical analysis are: SiO2=52%–62%, Al2O3>15%, Na2O/K2O>1 and MgO<3.30%. In addition, the volcanic rocks are LREE-enriched with LREE/HREE=10–13, (La/Yb)N=15–19, and show a weak negative Eu anomaly with δEu=0.71–0.89. The close relationship between Mg# and SiO2 and the co-variation of the magmatophile elements and ultra-magmatophile elements such as La/Sm-La and Cr-Tb indicate that this association of volcanic rocks is the product of comagmatic fractional crystallization. The rock association type and lower Sm/Yb values (Sm/Yb=3.23–3.97) imply that this association of volcanic rocks should have originated from partial melting of spinel lherzolite in the lithospheric mantle. On the other hand, the weak negative Eu anomaly and relative depletion in Nb, Ta and Ti reflect the features of terrigenous magma. So the Neogene Belog Co alkaline volcanic rocks should be the result of partial melting of the special crust-mantle transition zone on the Qinghai-Tibet Plateau.     

Organic Material and Trace Elements of Bituminous Rocks in the Ozankiiy Field, Ankara, Turkey

Bituminous rocks in the Ozankoey （Ankara） field are different from those of the Paleocene- Eocene Mengen and Giineytepe （Bolu） regions in metal enrichment levels. Organic carbon （Corg） content of organic material-rich rocks in the Ozankoey （Ankara） field is 3.66-40.72% wt averaging 14.34%. The dominant organic materials are algae/amorphous accompanied by minor amount of herbaceous material （The dominant kerogen type is Type-I with a limited amount of Type-Ⅱ kerogen.）. The bituminous rocks in the Ozankoey field are enriched in heavy metals such as Ni, Mn, As and Cr. In comparison with the average enrichment values of dements, Ni, Mn, As and Cr in bituminous shales of the Ozankoey field are as about 4.38, 14.93, 10.90 and 5.58 times as average values. The average concentrations of these heavy metals are also as high as 215× 10^-6, 828 × 10^-6, 58.54 × 10^-6, and 148 × 10^-6 respectively. In addition, sorption properties of day and organic materials are also important for metal enrichments in the bituminous shales.     

邯邢煤田岩浆侵入及对煤层煤质的影响

根据邯邢煤田岩浆侵入特点,分析岩浆侵入煤系层位与分布规律,岩浆侵入体的产状及岩性特征。邯邢煤田岩浆岩的侵入,不仅破坏了该区煤层的连续性和完整性,减少了煤炭的可采储量,并使煤层的物理性质、化学成分和工艺性能也发生了显著变化,致使煤质变差,煤炭工业价值降低。     

金川软岩蠕变破坏机理电镜实验研究

为探讨金川矿岩石蠕变破坏机理,应用微观扫描电镜(SEM)对蠕变受力情况下岩石破坏断口微观形态进行了观察研究,并分析了其产生的微观破坏机制。结果表明:岩石蠕变断裂的微观机制主要是拉伸、剪切作用下岩石发生脆性断裂,从岩石断裂微观形态研究岩石蠕变断裂,可以更好的揭示岩石断口微观形貌特征、裂纹生核、扩展、及断裂方式与岩石蠕变演进过程的联系。     

Organic Material and Trace Elements of Bituminous Rocks in the Ozank(?)y Field,Ankara,Turkey

Bituminous rocks in the Ozank(?)y(Ankara) field are different from those of the Paleocene- Eocene Mengen and Güineytepe(Bolu) regions in metal enrichment levels.Organic carbon(C_(org)) content of organic material-rich rocks in the Ozank(?)y(Ankara) field is 3.66-40.72% wt averaging 14.34%.The dominant organic materials are algae/amorphous accompanied by minor amount of herbaceous material(The dominant kerogen type is Type-Ⅰwith a limited amount of Type-Ⅱkerogen.). The bituminous rocks in the Ozank(?)y field are enriched in heavy metals such as Ni,Mn,As and Cr.In comparison with the average enrichment values of elements,Ni,Mn,As and Cr in bituminous shales of the Ozank(?)y field are as about 4.38,14.93,10.90 and 5.58 times as average values.The average concentrations of these heavy metals are also as high as 215×10~(-6),828×10~(-6),58.54×10~(-6),and 148×10~(-6) respectively.In addition,sorption properties of clay and organic materials are also important for metal enrichments in the bituminous shales.     

冀中饶阳凹陷大王庄地区古近系沉积演化特征与储盖组合分析

冀中饶阳凹陷大王庄地区古近系属断陷湖盆演化阶段,分为断陷分割期、断陷扩张期和断陷萎缩期3个时期,发育辫状河三角洲、滨浅湖和曲流河3类沉积体系。在等时地层格架内,分析了该地区沉积演化特征和储盖组合的分布及时空展布规律,指出该区古近系主要发育沙三段、沙二段、沙一段和东营组4套储盖组合,其中沙一段储盖组合为最有利的含油储盖组合。     

盐井二次定向对接连通施工工艺

新汶矿业集团泰山盐化工ZJ03-PJ03井组为一对定向连通采卤井井组，采用二次定向钻井连通施工工艺，技术套管下入深度907．6m（8矿层顶板），有效地阻隔了上部含较多杂质的岩盐矿层，确保了卤水质量能满足盐化工的需要。本对接连通井组，采用随钻测量井斜、方位及钻进轨迹控制技术，为该井组的顺利对接提供了技术保障。     

声波测井岩石波速统计分析

通常不同岩性的声波速度不同,同一岩性因裂隙发育和风化程度不同,声波速度也不相同。声波测井技术就是依据岩层的这一特性,划分不同岩层及岩层的风化破碎程度。这里对某铁路线的勘测的声波测井结果进行统计分析,给出了测区钻孔揭露的主要岩石较完整状态的声波波速统计值和异常发育概率统计。