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PDC钻头选型及持续改进李勇锋2011-12-29主要内容一．钻头选型二．钻头选型所需资料三．HZ25-7-2井钻头改进情况四．LF13-1油田钻头改进情况五．钻头磨损分级介绍钻头选型所考虑的因素•地层岩性－－可钻性和研磨性•电测资料－－伽玛和声波•泥浆综合录井•邻井钻头记录•钻井液性能•上一只钻头磨损分析•对钻头的期望值－－钻速，进尺•经济评价地层岩性－－可钻性，研磨性，抗压强度粘土－－－铣齿牙轮，PDC泥岩－－－铣齿牙轮，PDC页岩－－－铣齿牙轮，PDC疏松砂岩－－－铣齿牙轮，PDC石膏－－－铣齿牙轮，PDC砂岩－－－铣齿，镶齿牙轮，PDC砂质泥岩－－－铣齿，镶齿牙轮，PDC软石灰岩－－－镶齿牙轮，PDC白云岩－－－镶齿牙轮，PDC石灰岩－－－镶齿牙轮，PDC石英砂岩－－－镶齿牙轮硬白云岩－－－镶齿牙轮石英岩－－－镶齿牙轮花岗岩－－－镶齿牙轮玄武岩－－－镶齿牙轮火山岩－－－镶齿牙轮电测资料伽玛声波地层抗压强度确定钻头型号1．钻头切削结构2．钻头布齿密度3.切削齿抗冲击4.切削齿耐磨性5.保径要求6.轴承，密封7.水力要求岩性泥浆综合录井钻井参数－－钻压，转速，泵压，排量，扭矩；机械钻速－－每米钻时；岩屑录井－－岩性；泥浆录井－－地层流体成分，密度，粘度；气测－－化学成分录井；随钻曲线－－作业动态。短外锥，浅内锥，导向性好。钻头外锥曲线短，内锥深度浅，具备很强的导向能力。六微螺旋刀翼，稳定性好。六刀翼设计比五刀翼具备更大井眼接触面积，且采用微螺旋刀翼设计，稳定性好。短保径，主动保径切削齿，侧向切削力强。短保径，主动切削齿设计，具备很强的侧向切削力，造斜能力强。低纵横比，造斜响应度高。钻头长度与钻头直径比值小，增强大曲率井眼的造斜响应度。造斜能力强，稳定性好。配合旋转导向工具ＰＤＣ钻头邻井钻头记录钻头类型－－型号；所钻地层－－地层岩性；钻井参数－－参数敏感性；机械钻速－－快慢，是否适应地层；磨损分级－－磨损严重程度；磨损特征－－主要磨损特征；起钻原因．11899201595181771111401419883645.6250.73225.1010.603.4012.204.305.303.0016.412.615.910.83.20.005.0010.0015.0020.0025.0030.003-7-WT-A-X-1/16-CT-PR1-7-WT-A-X-1/16-CT-PR2-3-WT-A-E-1/16-NO-TD1-1-WT-A-X-1/16-BT-BHA8-8-LT-A-F-1/8-BC-PP2-2-WT-A-E-3/16-RG-CP4-3-WT-A-E-1/16-NO-TD2-3-WT-A-X-1/16-CT-BHA1-2-WT-S-X-1/16-CT-TD3-2-WT-A-X-1/16-CT-CP2-3-WT-A-X-1/16-NO-PR1-1-WT-A-E-1/16-NO-TD5001,0001,5002,0002,5003,0003,5004,0004,5002177562240366074345212058607434660737566073755224217224216212196211194M1951SGST616GX-18DXST617GX-18DXMX-30GDXMX-30GDXST916ST616ST617ST316MX-30GDX121/4121/4121/481/281/281/281/2121/4121/481/281/281/2HZ25-7-1HZ25-7-2ROP,m/hDEPT,m进尺机械钻速本井上一只钻头记录钻头类型－－型号；所钻地层－－地层岩性是否变化；钻井参数－－参数敏感性；机械钻速－－快慢，是否适应地层；磨损分级－－磨损严重程度；磨损特征－－主要磨损特征；起钻原因．钻头期望值钻头使用目的；机械钻速；钻头进尺．经济评价Cb+Cr(Tb+Tc+Tt)Ｃf＝HCf-----每米钻井成本；Cb----钻头价格；Cr----钻机日作业费；Tb----纯钻进时间；Tc----辅助时间；Tt-----起下钻时间；H------钻头进尺．钻头优选１）收集尽可能多的资料，并进行分析；２）选出满足技术要求的钻头型号；３）对选出的钻头进行经济评价，确定最合适的钻头型号．•电测数据，las文件。•包含GR，DT，井径数据。编号系列号喷嘴组合入井深度出井深度进尺钻压转速扭矩纯钻时钻速钻头评价(No.)(出厂号)(1/32)(m)(m)(m)(klb)(rpm)(amps)(h)(m/h)(八参数)1-1GJ115GC0986728*3133.0198.8765.90.5~130~563~51.5043.9131-1-WT-A-E-I-NO-TD2-1GJT135GC0136228+25*2198.91615.001416.11270～902～1331.1545.4620-1-WT-A-E-I-NO-TD3-1EM1915SDUM1351018×71615.01831.36215.03~1290~1104~207.1230.1971-2-BU-A-X-I-CT-BHA4-1TM1963SGS21916418×4+16×51831.362712.51881.155~1090~1106~2361.1414.4121-2-WT-A-X-I-CT-BHA5-1TM1664SS22016918×3+16×62712.512771.8659.352~1460~1106~2417.873.320-1-BU-A-X-I-CT-PR4-2TM1963SGS21916414×3+15+16×52771.863292.71520.852~1160~1106~2854.699.51-2-WT-A-X-I-CT-DTF6-1ST31622400718×63292.713420.15127.442~870~9010~2411.4311.10-1-WT-A-X-I-NO-CP7-1CQ7-3-1216API7-1-05883420.153429.209.051～540～506～221.585.736-2ST31622400718×4+20×23429.203651.00221.803～9100～12010～2832.396.81-3-BT-A-X-I-NO-TD10GF05BVCPSMX491422/32/32/323651.000-1-NO-A-E-I-NO-TD11ST636RS21217616/16/16/16/16/163651.004045.00394.0081202242.039.37431-2-WT-A-X-I-NO-TD12.2512.258.512.2512.258.37512.2512.2512.25直径(in)型号17.517.5TotDepthWOBTORQUERPMSPPFLWpmpsROPm/hrBitTimMWINDExpmtlb*ftrpmpsil/mnm/hhkg/l....7020.62713.8511612321362.210.851.050.407030.52361.6511567321544.110.041.050.437040.52339.8511207322648.940.061.050.427050.82742.1511212322664.350.071.050.417060.72859.7511255322573.410.091.060.387070.52512.9571261322540.230.111.060.477080.32300.1581262322448.550.131.060.407090.32349.7591264322459.060.151.060.397100.32326.8611266322351.830.171.060.417110.22184.9611269322351.070.191.060.387121.62186.4631217322655.900.201.060.527131.82452.0651252322566.210.221.060.517141.82474.5651245322570.410.231.060.507151.92979.4651297333974.700.251.060.497162.03823.3651621381379.180.261.060.497172.23110.4651564368840.600.281.060.627181.62416.1651563368855.010.301.060.537191.82613.6651565368866.460.321.060.517201.82447.6651567368866.850.331.050.517211.82436.1651569368867.620.351.050.517221.82441.4651582371469.080.361.050.507232.23350.5651640378974.020.381.050.517242.13017.2651640379081.130.391.050.497252.02989.2651643378980.590.401.050.497262.03121.5651647378980.100.411.050.497272.03073.9651649378981.780.431.050.48HZ25-7-2钻头改进情况地质层位地震层位HZ25-7-2(直井）邻井HZ25-7-1（直井）HZ25-7-2井地层岩性（距HZ25-7-1井1.2km)底深(m)厚度(m)底深(m)厚度(m)万山组T30675.0548.0672.5550.0泥岩与粉砂岩及泥质粉砂岩互层，成岩性差。粤海组T321076.0401.01021.0348.5灰色泥岩、粉砂质泥岩夹浅灰色泥质粉砂岩及粉砂岩，局部夹浅灰色细砂岩及薄层含砾砂岩。韩江组T401821.0745.01953.0932.0灰色泥岩、粉砂质泥岩为主，夹灰色、浅灰色泥质粉砂岩及粉砂岩层，局部夹薄层浅灰色细砂岩。珠江组T602929.01108.02887.0934.0上部：岩性以灰色泥岩为主，夹薄层及中厚层浅灰色泥质粉砂岩、粉砂岩，普遍夹灰岩条带。下部：岩性为灰色泥岩与浅灰色中细砂岩呈不等厚互层。珠海组T703422.0493.03388.0501.0以浅灰色中细砂岩为主，夹薄层及中厚层灰色泥岩。恩平组T803586.0164.03568.5180.5地层岩性为灰色细砂岩、粗砂岩与灰色、褐灰色泥岩与粉砂质泥岩呈不等厚互层。文昌组N253603.017.0地层岩性上部以褐灰色、深灰色泥岩为主夹薄层泥质粉砂岩。下部为厚巨厚层灰色细砂岩、粗砂岩，间夹薄层褐灰色泥岩。N413708.0105.0N433713.05.0N563783.070.0N683893.0110.0T904061.0▼168.03973.0▼379.0前第三系TD4061.03973.0HZ25-7-2井与HZ25-7-1井的地层特性HZ25-7-1井岩石力学分析6697698699691069116912691369146915691669176918691969206921692269236924692569266927692869051015202529223022312232223322342235223622372238220510152025韩江组珠江组文昌组珠海组恩平组10021102120213021402150216021702180219022002210222022302240225022602270228022902300231023202330234023502360237023802390266976986996910691169126913691469156916691769186919692069216922692369246925692669276928690204060292