本文選題：塔里木盆地 + 克深氣田��； 參考：《天然氣地球科學(xué)》2017年11期

【摘要】：塔里木盆地克深氣田白堊系巴什基奇克組砂巖儲層是庫車山前的主力產(chǎn)氣層,具有埋藏深度大、基質(zhì)物性差的特征,構(gòu)造裂縫普遍發(fā)育,特征及分布復(fù)雜,且對單井產(chǎn)量影響較大。目前針對該地區(qū)裂縫的研究已投入大量的工作,研究內(nèi)容主要包括基于鉆井巖心、成像測井等資料的裂縫精細(xì)描述;多方法多輪次裂縫分布規(guī)律預(yù)測等,但是受到取心程度、地震資料品質(zhì)、常規(guī)測井資料等限制,裂縫預(yù)測的效果不佳�？紤]到克深氣田超深層致密砂巖儲層裂縫具有多尺度特征,且不同尺度裂縫的發(fā)育特征、成因及分布規(guī)律有所不同,研究將裂縫進(jìn)行分級,系統(tǒng)地梳理了各級裂縫及其組合的發(fā)育特征和規(guī)律,并探索了裂縫與產(chǎn)量的關(guān)系。研究認(rèn)為:(1)綜合考慮裂縫的長度、開度、發(fā)育特征等因素,將克深氣田儲層裂縫劃分為"Ⅰ級裂縫—米級裂縫"、"Ⅱ級裂縫—顆粒貫穿縫"、"Ⅲ級裂縫—粒緣縫"三級裂縫;(2)根據(jù)各級裂縫的尺度、成因及組合特征,建立了克深氣田儲層三級裂縫組合,即"Ⅰ級裂縫組合—優(yōu)勢裂縫帶"、"Ⅱ級裂縫組合—優(yōu)勢裂縫及伴生縫"、"Ⅲ級裂縫組合—粒緣縫網(wǎng)";(3)克深氣田儲層多尺度縫網(wǎng)有效溝通砂體和砂層組,連通粒間溶蝕擴(kuò)大孔,產(chǎn)生粒內(nèi)溶孔及微孔隙,提高儲層的滲流能力,對單井產(chǎn)量影響較大,是超深層致密砂巖儲層天然氣高產(chǎn)、穩(wěn)產(chǎn)的關(guān)鍵。
[Abstract]:The sandstone reservoir of the Cretaceous Bashiqike formation in Keshan gas field, Tarim Basin, is the main gas producing reservoir in front of Kuqa Mountain, with the characteristics of large burial depth and poor physical properties of matrix. The structural fractures are generally developed, and the characteristics and distribution are complex. And the single well production is greatly affected. At present, a great deal of work has been devoted to the study of fractures in this area. The research contents mainly include fine description of fractures based on drilling core and imaging logging data, prediction of distribution law of multiple methods and rounds of fractures, etc., but the degree of coring is obtained. The quality of seismic data and conventional logging data are limited, and the effect of fracture prediction is not good. Considering that the fractures in the ultra-deep tight sandstone reservoir of Kesheng gas field have multi-scale characteristics, and the development characteristics, genesis and distribution of the fractures of different scales are different, the classification of fractures is studied. The development characteristics and rules of fractures and their assemblages at all levels are systematically combed, and the relationship between fractures and yield is explored. The study considers that the length, opening, and developmental characteristics of the fracture are considered synthetically. The reservoir fractures in Kesheng gas field are divided into "class 鈪，

本文編號：1946170