Pore Structure and Fractal Character of Lacustrine Oil-Bearing Shale from the Dongying Sag, Bohai Bay Basin, China
نویسندگان
چکیده
To better understand the pore structure and fractal character of lacustrine shales their influence on liquid hydrocarbon occurrences, in this study, a total 29 oil-bearing shale samples collected from Shahejie Formation Dongying Sag, Bohai Bay Basin, were investigated based nitrogen adsorption (NGA) analysis combined with TOC, Rock-Eval pyrolysis, X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM) experiments. The relationships among compositions (TOC, minerals, oil content), structures, dimensions discussed. results showed that characteristics differ at relative pressures 0-0.1 0.5-1. Two corresponding D 1 id="M2"> 2 determined by FHH model according to branches. Specifically, id="M3"> varies 2.4292 2.6109 (mean 2.5245), id="M4"> between 2.4680 2.8535 2.6889). specific surface area (SSA) ranges 1.512 m2/g 34.002 m2/g, an average 13.656 volume is 6.0 × 10-3 cm3/g 48.4 24.5 cm3/g), diameter range 4.22 nm 19.57 9.35 nm). Both id="M5"> id="M6"> increase increasing SSA decreasing diameters but have no correlation volume. Moreover, id="M7"> id="M8"> exhibit positive clay minerals negative correlations carbonate (calcite dolomite). relationship ( id="M9"> id="M10"> ) TOC contents expressed as U-shaped curve, characterized minimum id="M11"> values approximately 3% TOC. content controlled structures dimensions, lower SSAs smaller would more free oil. Therefore, window ranging 2% 4% are probably preferred exploration target Formation, Basin. indicate can provide insight into storage capacity shales.
منابع مشابه
Nanometer-Scale Pore Characteristics of Lacustrine Shale, Songliao Basin, NE China
In shale, liquid hydrocarbons are accumulated mainly in nanometer-scale pores or fractures, so the pore types and PSDs (pore size distributions) play a major role in the shale oil occurrence (free or absorbed state), amount of oil, and flow features. The pore types and PSDs of marine shale have been well studied; however, research on lacustrine shale is rare, especially for shale in the oil gen...
متن کاملFormation and Identification of Unresolved Complex Mixtures in Lacustrine Biodegraded Oil from Nanxiang Basin, China
A comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (GC × GC/TOFMS) method has been developed for the formation and identification of unresolved complex mixtures (UCMs) in lacustrine biodegraded oils that with the same source rock, similar maturity, and increasing degradation rank from Nanxiang Basin, China. Normal alkanes, light hydrocarbons, isoprenoids, steran...
متن کاملthe underlying structure of language proficiency and the proficiency level
هدف از انجام این تخقیق بررسی رابطه احتمالی بین سطح مهارت زبان خارجی (foreign language proficiency) و ساختار مهارت زبان خارجی بود. تعداد 314 زبان آموز مونث و مذکر که عمدتا دانشجویان رشته های زبان انگلیسی در سطوح کارشناسی و کارشناسی ارشد بودند در این تحقیق شرکت کردند. از لحاظ سطح مهارت زبان خارجی شرکت کنندگان بسیار با هم متفاوت بودند، (75 نفر سطح پیشرفته، 113 نفر سطح متوسط، 126 سطح مقدماتی). کلا ...
15 صفحه اولDetection and quantification of enteroviruses in coastal seawaters from Bohai Bay, Tianjin, China.
An 8-month survey was conducted to detect and quantify enteroviruses in Tianjin coastal seawaters of Bohai Bay to assess coastal water quality. Ten water samples were collected from Bohai Bay for the detection and quantification of enteroviruses by conventional reverse transcription polymerase chain reaction (RT-PCR) and SYBR Green real-time quantitative RT-PCR (qRT-PCR). Total viral nucleic ac...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geofluids
سال: 2021
ISSN: ['1468-8115', '1468-8123']
DOI: https://doi.org/10.1155/2021/9945494