本文選題：松遼盆地北部 + 水溶氣特征　； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：本文在松遼盆地北部地區(qū)富含水溶氣的地?zé)峋杉貙铀畼雍吞烊粴鈽?進(jìn)行地球化學(xué)分析測試,確定地層水化學(xué)特征、天然氣類型及組分特征;針對不同水溶氣發(fā)育層系分別建立水溶氣測井識別圖版,開展老井測井資料重新處理與解釋,確定水溶氣富集區(qū)域,并優(yōu)選5口富含水溶氣的地?zé)峋M(jìn)行系統(tǒng)觀測,獲得每口井天然氣溶解量;利用油田地質(zhì)、物探、測井、鉆探等資料,分析水溶氣富集地質(zhì)條件;利用儲層資料,計(jì)算儲層水資源量,最后根據(jù)水溶氣豐度值及儲層水資源量計(jì)算研究區(qū)水溶氣資源量。本次研究取得以下幾點(diǎn)結(jié)論與認(rèn)識:(1)為了確定水溶氣的類型及組分特征,在研究區(qū)富含水溶氣的地?zé)峋杉烊粴鈽?進(jìn)行地球化學(xué)分析測試,分析結(jié)果表明,松遼盆地北部地區(qū)水溶氣成分主要是甲烷,含量為81.74%~92.5%,絕大多數(shù)甲烷系數(shù)在0.90以上,具有干氣的特征,甲烷碳同位素在-75‰~-55‰,類型主要為生物成因氣。(2)優(yōu)選區(qū)塊建立的測井解釋方法能夠較好的識別儲層流體性質(zhì),不僅能較好的識別氣水層,對于三相流體同時存在的情況,能夠在先區(qū)分出含油層的基礎(chǔ)上,再識別氣水層。解釋圖版的符合率均達(dá)到95.4%以上,達(dá)到了對優(yōu)選區(qū)塊流體性質(zhì)進(jìn)行評價的目的。(3)在確定研究區(qū)域水溶氣發(fā)育區(qū)的基礎(chǔ)上,針對不同水溶氣發(fā)育層系分別建立了識別水溶氣的方法,優(yōu)選水溶氣井進(jìn)行測井資料的重新處理和二次解釋,明確了泰康隆起杜24區(qū)塊及龍虎泡階地塔161區(qū)塊具有較好的水溶氣資源。(4)收集整理富含水溶氣的地?zé)峋Y料,優(yōu)選5口典型地?zé)峋M(jìn)行系統(tǒng)抽水觀察及測試,目的在于獲得每口井天然氣溶解量,測試結(jié)果均見到較好的水溶氣顯示,日產(chǎn)氣量在190~690m3之間。(5)通過水溶氣井口測試及各套氣源巖生氣量評價,確定水溶氣豐度主要在0.05~0.35m3/t之間。松遼盆地北部地區(qū)水溶氣豐度高值主要分布在湯池、杜蒙、林甸、安達(dá)、長春嶺南地區(qū),為水溶氣較發(fā)育區(qū)。(6)利用水溶氣豐度以及各儲層水資源量結(jié)果,對松遼盆地北部姚二三段、姚一段、青二三段、泉三四段儲層進(jìn)行了水溶氣資源量計(jì)算。計(jì)算結(jié)果顯示,松遼盆地北部非探區(qū)水溶氣總資源量約為2614.19×108m3,表明松遼盆地北部具有豐富的水溶氣資源。
[Abstract]:In this paper, the formation water samples and natural gas samples are collected from the geothermal wells rich in water-soluble gas in the northern part of Songliao Basin, and the geochemical analysis and test are carried out to determine the chemical characteristics of formation water, the types of natural gas and the composition characteristics. In view of the different water-soluble gas development layers, the water dissolved gas logging identification chart was established, the old well logging data were reprocessed and interpreted, the water-soluble gas enrichment area was determined, and five geothermal wells rich in water-soluble gas were selected for systematic observation. To obtain the dissolved amount of natural gas in each well, to analyze the geological conditions of water-soluble gas enrichment by using the data of oil field geology, geophysical exploration, logging and drilling, and to calculate the amount of reservoir water resources by using reservoir data, Finally, the amount of water-soluble gas is calculated according to the abundance of water-soluble gas and reservoir water resources. In order to determine the type and component characteristics of water-soluble gas, natural gas samples were collected from geothermal wells rich in water-soluble gas in the study area, and geochemical analysis and tests were carried out. In the northern part of Songliao Basin, the main component of water-soluble gas is methane, the content of which is 81.74% and 92.5%. Most of the methane coefficient is above 0.90, which has the characteristics of dry gas, and the carbon isotope of methane is from -75 鈥，

本文編號：1967489