發(fā)布時(shí)間：2018-07-11 15:28

  本文選題：薄儲(chǔ)層 + 低滲透��； 參考：《西安石油大學(xué)》2015年碩士論文

【摘要】：本論文根據(jù)神木氣田地震勘探技術(shù)發(fā)展的現(xiàn)狀和前景,結(jié)合長(zhǎng)慶油田油氣勘探實(shí)際生產(chǎn)的迫切需要,開展了對(duì)該區(qū)域地震數(shù)據(jù)采集、處理和解釋的集中攻關(guān),尤其是針對(duì)各種反演方法的研究和對(duì)比,期望達(dá)到最終目的—即解決儲(chǔ)層預(yù)測(cè)問題。本文認(rèn)真分析該氣田復(fù)雜黃土塬處理技術(shù)現(xiàn)狀,結(jié)合實(shí)際生產(chǎn)中存在的關(guān)鍵技術(shù)問題和技術(shù)難題,擬定研究方案。并通過采集、處理、解釋一體化的運(yùn)作思路,研究黃土塬區(qū)地震資料各方面的處理解釋應(yīng)用技術(shù),并最終開發(fā)出一系列適用于黃土塬資料的處理解釋方法,以及建立了適應(yīng)于黃土塬地區(qū)資料的處理和解釋流程,形成能夠直觀反映地層巖性以及厚度變化的波阻抗剖面。地震目標(biāo)處理最終目的是解決儲(chǔ)層預(yù)測(cè)問題。通過綜合分析神木氣田上古生界儲(chǔ)層地球物理特征,并結(jié)合以往勘探開發(fā)經(jīng)驗(yàn)得到以下認(rèn)識(shí):盆地東部為多層系、薄儲(chǔ)層、低滲透巖性氣藏,加之儲(chǔ)層厚度薄、橫向變化大,因而地震預(yù)測(cè)困難。但是隨著地震技術(shù)的不斷發(fā)展,對(duì)低滲透油氣藏的儲(chǔ)層巖性、物性、含氣性預(yù)測(cè)也有了突破性進(jìn)展�？梢酝ㄟ^地震屬性分析、吸收衰減、AVO分析和疊前反演預(yù)測(cè)儲(chǔ)層的含氣性。神木氣田成功鉆探表明:針對(duì)多層系、薄儲(chǔ)層、低滲透油氣藏的特點(diǎn),在地質(zhì)系統(tǒng)分析及研究的基礎(chǔ)上,充分利用地震、測(cè)井資料相結(jié)合,可以比較精確的預(yù)測(cè)薄儲(chǔ)層巖性、物性及含氣性。實(shí)踐證明,儲(chǔ)層預(yù)測(cè)技術(shù)必須建立在正確的地質(zhì)分析基礎(chǔ)之上,把沉積相分析以及測(cè)井資料的綜合解釋融合到地震預(yù)測(cè)的各個(gè)環(huán)節(jié)之中,才能有效提高儲(chǔ)層預(yù)測(cè)成功率,真正實(shí)現(xiàn)少投入多產(chǎn)出的目的。
[Abstract]:According to the present situation and prospect of seismic exploration technology in Shenmu gas field, combined with the urgent need of oil and gas exploration in Changqing Oilfield, this paper has carried out the concentrated research on seismic data acquisition, processing and interpretation in this area. Especially for the research and comparison of various inversion methods, the ultimate goal is to solve the reservoir prediction problem. In this paper, the present situation of the complex loess plateau treatment technology in the gas field is seriously analyzed, and the research scheme is drawn up in combination with the key technical problems and technical problems existing in the actual production. And through the operation idea of the integration of acquisition, processing and interpretation, this paper studies the processing and interpretation technology of seismic data in loess plateau, and finally develops a series of processing and interpretation methods suitable for the data of loess plateau. The processing and interpretation flow of the data adapted to the loess tableland is established to form the wave impedance section which can directly reflect the variation of strata lithology and thickness. The ultimate purpose of seismic target processing is to solve the reservoir prediction problem. By synthetically analyzing the geophysical characteristics of Upper Paleozoic reservoirs in Shenmu gas field, and combining with the previous exploration and development experience, the following conclusions are obtained: the eastern part of the basin is multi-layer series, thin reservoir, low permeability lithologic gas reservoir, and the reservoir thickness is thin, and the lateral change is great. As a result, earthquake prediction is difficult. However, with the development of seismic technology, there is a breakthrough in the prediction of reservoir lithology, physical properties and gas-bearing properties of low permeability reservoirs. Through seismic attribute analysis, absorption attenuation AVO analysis and prestack inversion can be used to predict reservoir gas-bearing. The successful drilling in Shenmu gas field shows that according to the characteristics of multi-layer system, thin reservoir and low permeability reservoir, on the basis of geological system analysis and research, the lithology of thin reservoir can be predicted accurately by fully utilizing seismic and logging data. Physical and gaseous properties. It has been proved that reservoir prediction technology must be based on correct geological analysis and integrate sedimentary facies analysis and logging data into all aspects of seismic prediction in order to effectively improve the success rate of reservoir prediction. Really achieve the goal of less input and more output.
【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.13;P631.4

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