本文關(guān)鍵詞：沁南煤層氣井壓裂施工曲線分析　出處：《河南理工大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年03期 　論文類型：期刊論文

  更多相關(guān)文章： 煤層氣 壓裂施工曲線 排采

【摘要】：為研究不同類型煤層氣井壓裂施工曲線所揭示的儲(chǔ)層特征和施工情況,對(duì)沁水盆地南部鄭莊樊莊區(qū)塊的230口煤層氣井的壓裂施工曲線進(jìn)行對(duì)比分析,結(jié)合油壓、排量、砂比的相互影響關(guān)系,對(duì)壓裂施工階段進(jìn)行分類。前置液階段分為階梯排量型曲線和穩(wěn)定排量型曲線,攜砂液階段大體分為壓力穩(wěn)定型、壓力波動(dòng)型、壓力上升型、壓力下降型等4類曲線,頂替液階段主要為壓力上升型曲線。對(duì)不同壓裂曲線反映出的工程原因和地質(zhì)內(nèi)涵進(jìn)行分析,結(jié)合實(shí)際排采資料,對(duì)不同類型壓裂曲線產(chǎn)氣效果進(jìn)行評(píng)價(jià),認(rèn)為穩(wěn)定型≈下降型波動(dòng)型≈上升型。
[Abstract]:In order to study the reservoir characteristics and operation conditions revealed by fracturing curves of different types of coalbed methane wells, the fracturing operation curves of 230 coalbed methane wells in Zhengzhuang Fanchang block in the south of Qinshui Basin are analyzed. Combined with the interaction of oil pressure, discharge rate and sand ratio, the fracturing stage is classified. The pre-fluid stage is divided into stepped displacement curve and stable displacement curve, and the sand carrying fluid stage is generally classified into pressure stable type. Pressure fluctuation type, pressure rising type, pressure falling type are four kinds of curves, and the displacement fluid stage is mainly pressure rising type curve. The engineering cause and geological connotation reflected by different fracturing curves are analyzed. Combined with the actual production data, the gas production effect of different fracturing curves is evaluated, and it is considered that the stable type 鈮，

本文編號(hào)：1406824