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核磁共振测井在与石油相关的岩石力学特性方面的使用:控砂、水力压裂、井眼稳定性

发布日期:2018-09-23 作者: 点击:

岩石的毕奥弹性常数(α)是树立应力与孔隙压力之间联络的重要参数,测量农业用井脱兔电竞是用来描绘组成岩石骨架物质的紧缩特性的。依据毕奥的观念,测量农业用井如果岩石能够被紧缩并且在紧缩后答应液体排出,那么α是所排出液体的体积与岩石被紧缩体积的比值。这就预示着,虽然其他的参数如有用应力、岩性、胶结物、紧缩性等等与岩石的浸透率相关,α与岩石的浸透率之间的联络更为亲近。因为与石油相关的岩石通常状况下都被流体所饱满,因此弄清楚饱满液与孔隙压力是怎样影响岩石的力学特性和活动特性是非常要害的。

TerzaghiDETURANGYOUYONGYINGLILILUNZHICHU,YOUYONGYINGLISHIZONGYINGLIJIANQUKONGXIYALI,JIα=1。ZHEIYEJIUSHISHUO,TIANJIAXIAOGUOYUYANSHIDEWAIBUYINGLIYUXUEJIANXIANGTONGJUXIDEKONGXIYALIDUIYANSHIDETIJIGAIDONGSHIXIANGTONGDE。ZAIDADUOSHUZHUANGKUANGXIA,ZHEIGEYUANLISHIYOUYONGDE。

测量农业用井

JIUYUSHIYOUYOUGUANDEYANSHIERYAN,ZHEIGEYUANLIBUZAIYOUYONG,YINCI,XUQIUTIANJIAYIGECHANGSHUJI:σet=σt–αP。SUIRANCHANGSHUαZAISHIYOUYANSHILIXUETEXINGDEYANTAOGONGZUOZHONGQIZHEZHIGUANZHONGYAODEXIAOGUO,KESHIHAIMEIYOUDUOSHAORENJIUCIJINXINGSHENHUADEYANTAO。YINWEISILUNBEIXIEGONGSIDEHECICEJINGZHANGLIANGCHENGGUONENGGOUGONGJIYUYANXINGWUGUANDEDICENGKONGXIDU、JINTOULVHESHUFUSHUIBAOMANDU,QUBIEKEDONGHEBUXINGDONGKONGXILIUTIYIJICONGCHIYULVZHANGLIANGZHONGDUANDINGKONGXIJUXIDESANBU,WEIDICENGDIANPINGTIANJIAXINDESHOUFA。

脱兔电竞NENGGOUYUNYONGCMRSUOZHANGLIANGDEDICENGJINTOULV,QIUQUBIAODANXINGCHANGSHU(α)。DONGTAICHANGSHUαTONGCHANGSHIJINGGUOKONGXIDUJINGLIGONGSHIQIUCHULAIDE,ZHEIXIEGONGSHISUOQIUDEDECHENGGUO,YOUSHIHOUJURANXIANGCHA100%HUOZHEGENGDUO。DANSHI,XUDUODEYANSHITAXIANHEKONGSHAMOXINGXUQIUJINGTAICHANGSHUα。SANWEICEYANCHENGGUOXIANXIAN,JINGTAICHANGSHUαYUJINTOULVDELIANLUOYAOBIYUKONGXIDUDELIANLUOGENGWEIQINJIN。JINGGUO10GESHAYANHETANSUANYANDEYANXINSHIYANSHUJUBIAOMING,DANGJINTOULVXIAJIANGSHI,JINGTAICHANGSHUαGENZHEXIAJIANG。QILIANLUOSHIWEI:αstatic=0.045*Ln(Perm)0.7,R2=0.95,PermDEDANWEIWEImd)。YOUCIBUNANKANCHU,HECIGONGZHENSUOQIUDEDEJINTOULV,NENGGOUZUOWEIQIUQUJINGTAIαCHANGSHUDESHURUZHI。BIAOCHANGSHUZAIKONGSHA、SHUILIYALIE、JINGYANWENDINGXINGDENGYIXILIEYANSHIWULILIXUETEXINGFANGMIANDESHIYONGCONGTAZAIGEGEGONGSHIZHONGDEFANGWEIJIUNENGGOUKANCHU。SUIRANMEIYIGEGONGSHISHIYONGYUMOUYIZHONGTEDINGDEJIADING,DANBIAOCHANGSHUQUEWUCHUBUZAI。YUNYONGHECIGONGZHENSHUJUNENGGOUQUDEJINGQUEDEBIAOCHANGSHU,RANHOUQUDEJINGQUEDIYUCECHUSHA、SHUIPINGHUANBIZHIYINGLI,HESUANJINGYANWENDINGXINGYIJISHUILIYALIESUOXUQIUDEDICENGJUELIEYALI。


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