商河58區(qū)塊火山巖及其儲集性分析
發(fā)布時間：2019-05-15 23:38
【摘要】：山東省惠民凹陷商河58區(qū)塊沙一段屬于淺湖相沉積盆地,發(fā)育噴發(fā)相火山巖夾層�；鹕綆r中油氣分布規(guī)律一直倍受地學界關(guān)注。研究區(qū)中火山巖層巖性變化較大,產(chǎn)狀多變,對火山巖儲集性能認識不一。本論文對該非均質(zhì)性火山巖儲集體進行了工作,搞清了其巖性發(fā)育及內(nèi)部結(jié)構(gòu)變化特征,分析了火山巖儲集性特征及油氣富集規(guī)律,提出火山巖儲層勘探開發(fā)建議。針對惠民凹陷商河58區(qū)塊沙一段致密、孔滲值較低、孔隙連通性較差的低產(chǎn)量火山巖儲集層,論文在野外觀察3口鉆,并采集巖心標本32件的基礎(chǔ)上,鑒別出其巖性主要為火山角礫巖、角礫凝灰?guī)r、生物碎屑灰?guī)r,搞清了火山巖與生物灰?guī)r內(nèi)部礦物成分、各個礦物之間的關(guān)系、巖石形成過程等,并結(jié)合鉆孔錄井資料分析,厘定了四個火山巖巖相,劃分了3期噴發(fā)活動,并且利用角礫粒徑大小不同的特點,細分出了火山巖中不同的韻律層。運用顯微CT掃描技術(shù)、針對不同儲層的火山巖和灰?guī)r進行了無損分層掃描,測定了儲集層巖性的孔隙及喉管特點,建立了孔隙和喉管變化三維模式圖,計算出巖石孔隙度、滲透率數(shù)據(jù),將不同期次的火山巖和生物灰?guī)r進行對比,確定了火山巖儲集層裂縫表征特征和孔隙連通性有利部位,預測出油氣在火山巖儲層中賦存的主力層位置,為火山巖儲層的開發(fā)提供了有力依據(jù)。
[Abstract]:The first member of Shanhe 58 block in Huimin sag, Shandong Province, belongs to shallow lacustrine sedimentary basin, and eruptive volcanic rock interlayer is developed. The distribution of oil and gas in volcanic rocks has been paid more and more attention by geologists. In the study area, the lithology of volcanic strata changes greatly and the occurrence is changeable, so the reservoir performance of volcanic rocks is different. In this paper, the heterogeneous volcanic rock reservoir is worked out, its lithology development and internal structure change characteristics are clarified, the volcanic reservoir characteristics and oil and gas enrichment law are analyzed, and some suggestions for exploration and development of volcanic reservoir are put forward. Aiming at the low yield volcanic rock reservoir with dense sand first member, low porosity and permeability value and poor pore connectivity in Shanghe 58 block of Huimin sag, this paper observes 3 drills in the field and collects 32 core specimens. It is identified that the lithology is mainly volcanic breccia, breccia tuff and bioclastic limestone, and the mineral composition inside volcanic rock and biological limestone, the relationship between each mineral, rock formation process and so on are clarified, and the drilling and logging data are analyzed. Four volcanic rock facies are determined, three stages of eruption activity are divided, and different rhythmic layers in volcanic rocks are subdivided by using the characteristics of different particle size of breccia. The nondestructive delamination scanning of volcanic rocks and limestone in different reservoirs is carried out by using micro-CT scanning technology. the pore and throat characteristics of reservoir lithology are measured, the three-dimensional model diagram of pore and throat variation is established, and the rock porosity is calculated. According to the permeability data, the fracture characterization characteristics and pore connectivity of volcanic reservoir are determined by comparing different stages of volcanic rock and biogenic limestone, and the location of principal layer of oil and gas in volcanic reservoir is predicted. It provides a powerful basis for the development of volcanic reservoir.
【學位授予單位】：中國地質(zhì)大學(北京)
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13
[Abstract]:The first member of Shanhe 58 block in Huimin sag, Shandong Province, belongs to shallow lacustrine sedimentary basin, and eruptive volcanic rock interlayer is developed. The distribution of oil and gas in volcanic rocks has been paid more and more attention by geologists. In the study area, the lithology of volcanic strata changes greatly and the occurrence is changeable, so the reservoir performance of volcanic rocks is different. In this paper, the heterogeneous volcanic rock reservoir is worked out, its lithology development and internal structure change characteristics are clarified, the volcanic reservoir characteristics and oil and gas enrichment law are analyzed, and some suggestions for exploration and development of volcanic reservoir are put forward. Aiming at the low yield volcanic rock reservoir with dense sand first member, low porosity and permeability value and poor pore connectivity in Shanghe 58 block of Huimin sag, this paper observes 3 drills in the field and collects 32 core specimens. It is identified that the lithology is mainly volcanic breccia, breccia tuff and bioclastic limestone, and the mineral composition inside volcanic rock and biological limestone, the relationship between each mineral, rock formation process and so on are clarified, and the drilling and logging data are analyzed. Four volcanic rock facies are determined, three stages of eruption activity are divided, and different rhythmic layers in volcanic rocks are subdivided by using the characteristics of different particle size of breccia. The nondestructive delamination scanning of volcanic rocks and limestone in different reservoirs is carried out by using micro-CT scanning technology. the pore and throat characteristics of reservoir lithology are measured, the three-dimensional model diagram of pore and throat variation is established, and the rock porosity is calculated. According to the permeability data, the fracture characterization characteristics and pore connectivity of volcanic reservoir are determined by comparing different stages of volcanic rock and biogenic limestone, and the location of principal layer of oil and gas in volcanic reservoir is predicted. It provides a powerful basis for the development of volcanic reservoir.
【學位授予單位】：中國地質(zhì)大學(北京)
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13
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1 鄭常青;王璞s，
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