井身結(jié)構(gòu)設(shè)計文檔資料

1、.1.2.3.4ph)(00981. 0ahmphp.5mmphpgahh/00981. 0.6rmhp100981. 00p0p0：上覆巖層壓力；上覆巖層壓力；mpampa；rm:rm:巖石基質(zhì)密度，巖石基質(zhì)密度，g/cm3g/cm3；:地層空隙中流體密度，地層空隙中流體密度，g/cm3g/cm3；：無量綱的小數(shù)無量綱的小數(shù)( (孔隙度孔隙度) ).7ppp0popp .8.9hpa00981.0ghbppp.10hp.11.12dh.13dbemdpknv)(bmdpnvd0684. 0lg0547. 0lg.14mmncdd.15.16.17cpncnpdd.18)(00negghhgp

2、p.19dchpphggghne00)(heh.20.21h聲波時差chett0achtt0lnlnh：井深，井深，m t:井深井深h處的泥巖聲波時差，處的泥巖聲波時差，s/ft t0:表層泥巖聲波時差表層泥巖聲波時差, s/ftc：正常趨勢線斜率正常趨勢線斜率a:正常趨勢線截距正常趨勢線截距.22.23.24.2502cos)(20rzmhhhhmrpppppphpppapp)()(100ppphpppbpp)()(100.26ptpfpsppbap)(3120.27測試方法測試方法ppf=pstand_pipe+pm.28液壓試驗（泄漏試驗）液壓試驗（泄漏試驗）p泵入量：泵入量：v立立管管

3、壓壓力力pa.29.30hpm/8 .1011maxhpgmf100981. 0.31.32tgcnc:巖石的粘聚力巖石的粘聚力：巖石的內(nèi)摩擦角；巖石的內(nèi)摩擦角；n:巖石剪切面上的法向正應(yīng)力巖石剪切面上的法向正應(yīng)力.33hkkpckphhstm22,0098. 01232450ctgk.34.35.36.37.38.39.40井深井深當量泥漿密度當量泥漿密度gpgf.41wpsmaxmax.42gmesmax.43kmesmaxknpmeshhmaxmax.44ffmes當量泥漿密度當量泥漿密度gpgf.45.46fgwpfnrsssmax.47knipfwpfnkshhssmaxmax.48

4、當量泥漿密度當量泥漿密度gpgf正常工況（起鉆、下鉆）正常工況（起鉆、下鉆）發(fā)生溢流時發(fā)生溢流時當量泥漿密度當量泥漿密度gpgf.50mmwphsp)(00981. 0minmax.51wmmnppershpmin0098. 0wmmappershpmin0098. 0.52kninfwfnppershhss, 1采用迭代法，試取一個采用迭代法，試取一個hn+1值求值求pper，如果如果pper大于該深度的實大于該深度的實際地層壓力梯度，且二者接近，際地層壓力梯度，且二者接近，則則hn+1就是尾管下入深度。就是尾管下入深度。gpgfhnhn+1wmmnppershpmin0098. 01)中間

5、套管下深中間套管下深hn的確定的確定與與pper相對應(yīng)的井深即為中相對應(yīng)的井深即為中間套管下深間套管下深hn。2)尾管下深尾管下深hn+1的確定的確定kninfwfnppershhss, 1.54步驟步驟1 1、定中間套管最大下入、定中間套管最大下入深度假定點。深度假定點。當量泥漿密度當量泥漿密度gpgf.55當量泥漿密度當量泥漿密度gpgf.56當量泥漿密度當量泥漿密度gpgf.57當量泥漿密度當量泥漿密度gpgf.58.59.6081/2.61破裂壓力梯度f1h2h1450m3826m3h4146mp地層壓力梯度.62破裂壓力梯度f1h2h1450m3826m3h4146mp地層壓力梯度

6、fdfdfgwpfnrsssmax.63nmhp)08. 1(00981. 03384)08. 1776. 1 (00981. 0p.64nmh)08. 1(00981. 056.163/579. 1338400981. 056.16338408. 100981. 0cmgm破裂壓力梯度f1h2h1450m3826m3h4146mp地層壓力梯度.65024. 0060. 038264146)036. 074. 1 (3826fe.66kfwfdshhss12)543. 1 (06. 03826024. 0)036. 0543. 1 (1h060. 010673826024. 0)036. 0543. 1 (1067fd.673/761. 1024. 0060. 014503826)036. 0543. 1 (1450cmgfd破裂壓力梯度f1h2h1450m3826m3h4146mp地層壓力梯度.68套管層