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青海油頁(yè)巖地質(zhì)勘查過(guò)程采樣長(zhǎng)度的確定

發(fā)布時(shí)間:2018-04-13 06:10

  本文選題:油頁(yè)巖 + 采樣長(zhǎng)度。 參考:《中國(guó)礦業(yè)》2017年12期


【摘要】:為確定青海油頁(yè)巖勘查過(guò)程中油頁(yè)巖的最佳采樣長(zhǎng)度(以下簡(jiǎn)稱"樣長(zhǎng)"),在系統(tǒng)開(kāi)展野外地質(zhì)工作和樣品采集化驗(yàn)基礎(chǔ)上,分析認(rèn)識(shí)青海油頁(yè)巖地質(zhì)特征,分別用類比法、統(tǒng)計(jì)學(xué)方法和試驗(yàn)法,得出技術(shù)和經(jīng)濟(jì)方面均合理的最大樣長(zhǎng)。結(jié)果顯示:(1)由于油頁(yè)巖與同為固體可燃有機(jī)巖煤的宏觀識(shí)別程度、有用組分的變化過(guò)程和分布均勻程度均存在差異,所以不能完全參考煤的采樣規(guī)格;(2)通過(guò)統(tǒng)計(jì)分析Y-1Y和Y-6Y井油頁(yè)巖含油率正態(tài)分布類型為對(duì)數(shù)分布,與許多鉬、錫、鎢以及貴金屬礦床的典型樣品數(shù)據(jù)正態(tài)分布形態(tài)類似,可類比其樣長(zhǎng)規(guī)格,確定油頁(yè)巖樣長(zhǎng)為1.5~2.0m;(3)對(duì)Y-1Y井中選定的加密采樣層段含油率數(shù)據(jù)應(yīng)用減稀法得出最大樣長(zhǎng)為1.5m或1.6m。
[Abstract]:In order to determine the optimum sampling length of oil shale in Qinghai oil shale exploration process (hereinafter referred to as "sample length"), on the basis of systematic field geological work and sample collection test, the geological characteristics of Qinghai oil shale are analyzed and recognized, and the analogy method is used respectively.The maximum sample length of both technical and economic aspects is obtained by statistical and experimental methods.The results show that due to the macroscopic recognition degree of oil shale and the same solid combustible organic rock coal, the variation process and distribution uniformity of useful components are different.Therefore, the normal distribution type of oil content of oil shale in Y-1Y and Y-6Y wells is logarithmic distribution, which is similar to the normal distribution form of typical sample data of many molybdenum, tin, tungsten and precious metal deposits.The oil shale sample length is determined to be 1.5 ~ 2. 0 m ~ 3) by using thinning reduction method, the maximum sample length is 1.5 m or 1.6 m for the selected infill sampling interval oil content data in Y-1Y well.
【作者單位】: 吉林大學(xué)地球科學(xué)學(xué)院;青海省地質(zhì)調(diào)查局;青海煤炭地質(zhì)一五勘探隊(duì);中國(guó)地質(zhì)調(diào)查局西安地質(zhì)調(diào)查中心;
【基金】:國(guó)家自然科學(xué)基金項(xiàng)目資助(編號(hào):41502200;41602162) 國(guó)家科技重大專項(xiàng)資助(編號(hào):2016ZX05034001-006) 青海省地勘基金項(xiàng)目資助(編號(hào):2013274011kc001;2014057043kc006;2015083086kc002)
【分類號(hào)】:P618.12
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本文編號(hào):1743241

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