diagenetic evolution 中文意思是什麼
diagenetic evolution
解釋
成巖演化- diagenetic : 成巖作用的
- evolution : n 1 發展，發育；開展。2 （氣體等的）放出；散出，放出物，散出物。3 發生；演變；【生物學】演化，進...
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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。 -
Directed by new theories and approaches of sedimentology, diagenesis and reservoir evaluation, focused on marine clastic reservoir of donghe sandstone member, in tarim basin, strata and depositional system of donghe sandstone member are classified ; typical depositional facies types, depositional model and horizontal distribution have been studied through depositional facies analysis of 17 single wells, combined with seismic data. major diagenetic events, stages and " four history " collaboration have been systematically analysesed, furthermore, the relation between reservoir diagenesis and porosity evolution has been built ; thorough studies on reservoir lithology, physical property and pore structure, reservoir development related to depositional envoironment, diagenesis and tectonic has been discussed ; reservoir has been evaluated and predicted by five influential parameters drawn from the results of the study on depositional facies, diagenesis and reservoir characteristic. in the end, favourable reservoir body distribution has been pointed out
本論文以沉積學、沉積巖石學、沉積成巖作用與儲層地質學、儲層評價技術的新理論新方法為指導，以塔里木盆地巴楚組東河砂巖段海相碎屑巖儲層為主要研究對象，通過17口典型井的單井地層沉積相分析和成巖作用分析，結合地震資料，對東河砂巖段地層和沉積體系進行了詳細劃分，研究了東河砂巖段分佈區的典型沉積相類型、沉積模式及其平面展布特徵；系統分析了東河砂巖段碎屑巖儲層的主要成巖事件、成巖期次及其四史配置關系，指出了儲層成巖與孔隙演化的關系；深入研究了東河砂巖段碎屑巖儲層的巖石學特徵、物性分佈、孔隙結構等特徵，著重討論研究了沉積環境、成巖作用和構造作用對儲層發育的影響；運用「權重」評價法結合地層沉積相、成巖演化和儲層特徵研究的結果，選取了五個對儲層發育有重要影響的參數對儲層進行了整體的評價和預測，指出了塔里木盆地東河砂巖段儲層有利儲集體的分佈狀況。 -
The major diagenetic events include mechanical compaction, chemical compaction, cementation, replacement and dissolution. the reservoir quality experienced from being destroyed to being enhanced during the whole diagenetic evolution process
主要的成巖作用有：機械壓實作用，化學壓實作用，膠結作用，交代作用以及溶蝕作用。 -
Abnormal evolution of shallow reservoirs has related to the upward movement of hot fluid. influenced by the upward movement of hot fluid, shallow reservoirs have shown the characters of late diagenetic stage b ( or a )
淺層氣藏儲層異常演化特徵與泥底辟活動及熱流體上侵有關，熱流體侵入促使淺部儲層提前進入晚成巖階段b期（或a期） 。 -
The pattern of diagenetic and porosity evolution are established. the primary porosity of the reservoir rocks was 35 %, which was reduced by 21. 7 % by compaction and pressure solution and 8. 2 % by cementation. the secondary pores were produced by organic acids " dissolution during organic matter maturing stage, resulting an increase of porosity by 5 %
預測本區砂巖原始孔隙度為35 ，經機械壓實和化學壓溶作用孔隙度損失了21 . 7 ，后經自生礦物的膠結作用，孔隙度損失了8 . 2 ，當進入有機質成熟階段，有機酸的溶解作用產生次生孔隙，使孔隙度增加5 ，現今保存的平均孔隙度為10 . 1 。 -
Pressure separation is usually controlled by the following factors, such as subsidence rate, sediment types and diagenesis during the diagenetic evolution, as a result the pressure gradient is uncontinuous
地層壓力分隔化是由於沉積物在成巖演化過程中受各種因素，如沉積速率、沉積物類型以及成巖作用的影響，使地層中的流體壓力梯度呈現出隨深度變化不連續的一種現象。 -
Abstract : pressure separation is usually controlled by the following factors, such as subsidence rate, sediment types and diagenesis during the diagenetic evolution, as a result the pressure gradient is uncontinuous
文摘:地層壓力分隔化是由於沉積物在成巖演化過程中受各種因素，如沉積速率、沉積物類型以及成巖作用的影響，使地層中的流體壓力梯度呈現出隨深度變化不連續的一種現象。 -
Samples for strontium isotopic screened were selected by way of the test of cathodoluminescence, observation of thin sections, and analysis of sr and mn. the mn / sr value of all samples presented in this paper are less than 2, and the cathodoluminescence is dull, however, the samples from the cambrian underwent diagenetic alteration to a certain degree, and the plotted points of the thickness and 87sr / 86sr value are somewhat discrete. the strontium isotope evolution curve drawn from the data with relatively low 87sr / 86sr value are consistent with other curves based on samples from different areas of the world, supporting the notion of global consistency of strontium isotope composition of marine carbonates
根據鋸同位素地層學的基本原理，利用已有的鋸同位素演化曲線，筆者確定重慶秀山寒武系剖面寒武系底界、下一中寒武統界線和中一上寒武統界線都應適當下移；另外嘗試確定了重慶秀山寒武紀剖面一些關鍵點的年齡，累積厚度1380m處的年齡為503 ? 509ma ，累積厚度1900m處的年齡約為500ma ，這對秀山寒武系剖面下、中寒武統和中、上寒武統界線的確定具有參考價值。 -
In order to evaluate resource objectively, it is very important to find out the origin and the main source of co2 and to study the distribution pattern of hydrocarbon, nonhydrocarbon gas and probe the controlling factors, diagenetic evolution of different reservoirs ( rich in co2 or rich in cflo and the relation between diagenetic features and co2 have been studied systematically by using conventional and advanced techniques and the integrated the methods of petrology and geochemistry. based on the petrologic and geochemical data as well as dynamics reactions of carbonate ? lay minerals, the origin and distribution of co2 have been synthetically discussed
論文中應用常規及先進的測試技術，採用巖石學與地球化學相結合的方法，重點研究本區淺層氣藏富co _ 2儲層與富ch _ 4儲層的成巖演化特徵及其與co _ 2的相互關系，並通過天然氣的地球化學研究以及碳酸鹽礦物與粘土礦物反應形成co _ 2的熱力學分析，對co _ 2來源及分佈進行了初步分析和探討。
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