Landslide is a geological hazard with serious losses. it is very important to research the controling methods. slide - resistant pile, which has many advantages such as high adaptability, little interference to landslide and geological environment, short construction time, high silde resistance, is a main method to control landslide. pneumatic down - the - hole hammer is a drilling method with many advantages. its features, such as wide application range, high hole quality, no circulating medium, low operation regulations, and drilling big diameter rock hole, fit to construct slide - resistant pile. according to the requirement of silde - resistant pile construction, this paper analyses feasibility that pneumatic dth hammer drilling applies to construct slide - resistant pile on the basis of introducing the features of pneumatic dth hammer. then an applied example is given
滑坡是一種危害極大的地質災害,它的整治方法研究具有重要意義.抗滑樁是一種適應性強、對滑坡穩定性和地質環境干擾小、工期短、抗滑能力強的滑坡整治方法.風動潛
孔錘鉆進是一種具有許多優點的鉆進方法,它的許多特點,如成
孔質量高、應用范圍廣、無液體循環介質、鉆進規程參數小、可實現大直徑基
巖鉆
孔等都適合於抗滑樁施工.文章在介紹風動潛
孔錘鉆進特點的基礎上,根據抗滑樁施工要求,分析了風動潛
孔錘用於抗滑樁施工的可行性,並舉出了其應用實例
According to the principle of surface and colloid chemistry, the pore structure and characteristics of tight sand gas reservoir are analyzed
摘要根據表面與膠體化學原理,分析了低滲緻密砂
巖氣藏的
孔隙結構特徵、物性特徵以及它們之間的關系。
The variations in trace element contents and ratios may hold up a mirror to the lake - level fluctuations and climatic changes, which, in turn, have exerted a direct and important effect on the sequence stratigraphic development. collectively, the reservoir rocks from the yanchang formation consist dominantly of the delta front subfacies subaqueous distributary channel and channel - mouth bar microfacies and delta plain subfacies subaerial distributary channel microfacies fine - grained feldspar sandstones and siltstones. the reservoir rocks have been subjected to three stages of diagenetic and porosity evolution : ( 1 ) the porosity reduction by the mechanical compaction and chemical pressure solution during the early diagenetic stage ; ( 2 ) the porosity increase by the dissolution during the a substage of the late diagenetic stage, and ( 3 ) the porosity reduction by the cementation and filling during the b substage of the late diagenetic stage
系統的儲層特徵研究表明,該區延長組儲層成因類型主要為三角洲前緣水下分流河道、河口砂壩及三角洲平原水上分流河道微相細粒長石砂
巖、粉砂
巖;儲層
巖石經歷了壓實,膠結,溶蝕等成
巖作用,歷經早成
巖機械壓實和化學壓溶
孔隙縮小期、晚成
巖a亞期溶蝕作用
孔隙擴大期及晚成
巖a亞期( b亞期)膠結充填
孔隙縮小期三個成
巖-
孔隙演化階段;儲層物性總體上具有較低
孔滲、低
孔滲的特點,
孔隙類型主要為粒間溶
孔、殘余粒間
孔隙、粒內溶
孔、晶間
孔及晶間溶
孔,裂縫不發育,儲集
巖排驅壓力和中值壓力較高,
孔隙結構類型以細小
孔-微
孔隙,微細喉-微喉型為主。
Finally, it also discusses the sign ifi cance of thermal fluid flow to pool - forming dynamics : ( 1 ) provides a new ex planation way to abnormal vitrinite reflectance, which can enlarge the fields of hydrocarbon exploration and development ; ( 2 ) provides some important evidences to research of hydrocarbon migration, which support to choose exploration targ e ts ; and ( 3 ) provides means to study diagnesis and porosity evolution of reservo ir rocks, which can be used to predict the development units of deep reservoir s
最後,探討了熱流體活動對成藏動力學研究的重要意義,認為其可為有機質演化異常提供新的成因解釋途徑,擴大油氣勘探領域;為油氣運移的研究提供線索,優化勘探目標選擇;為成
巖-
孔隙演化的動態研究提供依據,預測深部儲層發育層段。
The formation mechanism of the pore of diagenetic dolostone includes : 1 ) the primary porosity is essential condition for the formation of dolostone reservoir
成
巖白雲
巖孔隙的形成機制有: l )
巖石的原生
孔隙度是成
巖白雲
巖儲層形成的必要條件。
Based on cores analyses of coring well, studied are the " four properties " ( i. e., lithology, physical property, conductivity and oil bearing ) relationships between conglomerate and glutenite formation ; set up are the logging interpretation models of porosity, permeability and oil saturation in conglomerate and glutenite reservoirs with different lithologies
以取心井
巖心分析為基礎,分別研究礫
巖、砂礫
巖儲層
巖石的
巖性、物性、電性及含油性兩兩之間的關系,建立了分
巖性的礫
巖和砂礫
巖孔隙度、滲透率、含油飽和度測井解釋模型。
This paper described the basic principle and construction type of the linear accelerometers, and calculated system response to various forces. it deduced essential parameters which affect measurement accuracy of accelerometers, and it also explained the measurement and selection methods of parameters about accelerometers
通過敘述鑿
巖排渣不順利所引起的後果,分析了影響排渣的各種因素,說明了在不同鉆鑿
巖孔的條件下的排渣能力,對鑿
巖機械的使用者和設計製造者來說,很有參考價值
Through inversion analyzing the results of inspection and observation which was applied the multipoint displacement measures and the drilling anchor stress measures to the top surface in the xianggui gypsummine eastern workings, this article will attempt to propose the deformation law of stope terrane after the underwater mine area, which provided a reliable basis for taking measures to control the strata movement
摘要為了研究湘桂石膏礦的
巖體變形規律,對該礦東采區頂板
巖孔多點位移計觀測和鉆
孔錨桿應力計檢測的結果進行綜合反演分析,提出了水下礦區開挖后采場
巖層的變形規律,為採取有效措施控制
巖層移動提供了依據。
It is vital difference for the changes of porosity and permeability between sandstone and mudstone
砂泥
巖孔隙度、滲透率的變化存在很大差異。
Porous seepage in calcirudite rock with 3 - d stresses
三維應力作用下砂礫
巖孔隙型滲流
Diagenesis not only can change mineral composition, fabric component, and texture, etc., but more important it can change the reservoir capability greatly, that is, it can build up, or reduce, or enlarge original pores, and even form a series of diagenetic crack. those secondary pores and cracks are important to improve reservoir capability, especially for carbonate
成
巖作用不僅使
巖石或沉積物的礦物成分結構組分構造等發生程度不同的變化,更重要的是使原
巖的儲集性能發生很大的變化,即對原生
孔隙或堵塞或殘留或擴大,而且還可產生一系列的成
巖孔縫次生
孔縫,這些次生
孔縫對
巖石儲集性的良化,尤其是對碳酸鹽
巖是至關重要的。
The dolostones have experienced several types of post - depositional diagenetic modifications, of which dolomitization, dissolution, recrystallization and tectonic stress processes have exerted an important effect on porosity and permeability
認為該白雲
巖在沉積期后變化中經歷了多種成
巖作用改造,其中影響白雲
巖儲集性的作用主要有白雲石化作用、溶蝕作用、重結晶作用和構造應力作用,對白雲
巖孔滲改善起了積極作用。
The data show that maximum oil saturation of sandstones is directly proportional to their porosity
對這些數據的統計分析表明,不同潤濕性砂
巖孔隙度與最大含油飽和度大致存在線性定量關系。
Standard test method for determination of pore volume and pore volume distribution of soil and rock by mercury intrusion porosimetry
用水銀注入
巖孔率計測定土壤和
巖石
孔隙容積與
孔隙容積分佈的標準試驗方法
Chang 4 + 52 sandstones have small pore and fine throat, however, chang 61 - chang 62 sandstones have fine pore and tiny throat
長4 + 52砂
巖孔喉組合為小
孔細喉型,長6l和長62砂
巖孔喉組合為細小
孔微細喉型。
Along with the increase of deepness, to porosity and permeability, mudstone reduce much more than sandstone
隨深度的增加,泥
巖孔隙度和滲透率降低的幅度比砂
巖大。
The dissertation researches evolvement and character of formation compression by model test and geology analyzing, based on analyzing transformation of porosity, permeability, compressibility and density of sandstone and mudstone and fracture during subsidence and uplift
本文以模擬試驗和地質分析為主要研究手段,在分析沉降、抬升過程砂泥巖孔隙度、滲透率、壓縮性、密度及裂縫變化的基礎上,研究地層壓力的演化及特徵。