工程设计管理丹152井钻井工程设计

工程设计管理丹152井钻井工程设计编号QK-KZG构造： 鄂尔多斯盆地伊陕斜坡井别： 开发井 井型： 定向井15-2钻井工程设计陕西延长石油(集团)有限责任公司油气勘探公司天然气勘探开发部二○一六年七月二十七日设计单位：设计人：年月日审核人：年月日单位负责人:年月日天然气勘探开发部审核意见:审核人:年月日单位负责人:年月日油气勘探公司主管单位审核意见:审核人:年月日单位负责人:年月日批准意见:批准人:年月日目录1.12.2222.4地质分层及油气水层43.778884．工程设计9910162830313437404141475153535.565656575859626.646.1完井提交资料647.656565651.基本数据开发项目鄂尔多斯盆地伊陕斜坡古生界天然气开发井号井别井型大地坐标(井口)纵(X)大地坐标(井口)横(Y)表层套管下深（m）（m）方位（°）丹15井评价井直井.953.99500.00//丹15-1井开发井定向井.943.28510.00580223.80丹15-2井开发井定向井.777.22520.00610160.27地理位置陕西省延安市志丹县旦八镇卢家湾北约1公里构造位置鄂尔多斯盆地伊陕斜坡15-2东经108°39′30.55″北纬36°37′50.40″地面海拔(m)1422.74磁偏角(°)-3.54方位角160.27°中靶半径(m)65丹15-2井1号靶点纵(X).18(m)横(Y)3.88(m)位移1323.25(m)海拔（山西组底）-2321.00(m)丹15-2井2号靶点纵(X).57(m)横(Y)8.04(m)位移1335.58(m)海拔（本溪组底）-2373.00(m)设计井深（垂深）3879m完钻层位马5目的层P3fP2hP1sP1tC2bO1m5设计依据丹15井、丹2井、丹7井完钻地质资料完钻原则钻穿马五4最后一套气层50m完钻，若马五4无油气显示进入马5510m完钻表层套管生产套管钻头尺寸(mm)×下深(m)尺寸(mm)×套管下深(m)钻头尺寸(mm)套管尺寸(mm)311.1×520.00244.5×520.00215.9139.7完井方法全套管射孔完井井场分布及定向方位示意图井场分布及定向方位示意图2.设计依据15-2构造位置：鄂尔多斯盆地伊陕斜坡地理位置及环境资料2.2.1井口坐标纵(X):.77(m)，横(Y):7.22(m)2.2.2磁偏角：-3.54°2.2.3地面海拔：1422.74m1气象资料：井区属大陆性季风半干旱气候，春季干旱多大风，夏季高温多雷雨，秋季凉爽而短445mm,无霜146d。本区第四系含水性较强，潜水位较浅。春秋季多西北风、多沙尘暴天气；夏秋季节易发山洪、山体滑坡等灾害性地质现象。地形地貌及交通情况：地质要求井别：开发井井型：定向井2.3.3设计井深：垂深：3879.00（m）斜深：4160.59(m)2.3.4磁偏角(°)：-3.542.3.5中靶垂深：A3744.00m.18(m)3.88(m)B3790.00m.57(m)8.04(m)2.3.6完钻垂深：3879.00m2.3.7地面海拔：1422.7m450m45510m完钻完井方法：全套管射孔完井。地质分层及油气水层地层设计地层(m)岩性显示类别显示层段(垂深m)卡层取心层段(m)地层设计地层(m)岩性显示类别显示层段(垂深m)卡层取心层段(m)故障提示界系统组底界深度(垂深)厚度顶底深度新生界第四系200200松散黄土防漏中生界白垩系下统志丹群406206杂色砂泥岩互层侏罗系中统安定组578172棕红色泥岩上部夹灰杂色泥岩下部夹粉、细砂岩防漏防卡直罗组795217灰绿、紫红色泥岩与浅灰色砂岩互层防漏防卡下统延安组1097302细砂岩夹泥岩、砂质泥岩，底部为粗砂岩防卡防喷富县组113336灰色泥岩夹灰白色中细粒、含砾粗砂岩防卡防喷三叠系上统延长组2116983深灰色泥岩夹浅灰色细砂岩、泥质砂岩防卡中统纸坊组2635519紫红色泥岩夹浅红色砂岩防卡下统和尚沟组2816181紫红色泥岩夹紫灰色砂岩防漏刘家沟组3107291浅紫色砂岩夹棕红色泥岩防塌防喷古生二叠上统石千峰组3366259棕红泥岩与棕色细砂岩互层气3324-33283346-3356防塌防喷界系中统石盒子组3624258上部巨厚状泥、下部浅灰色中粗粒石英砂岩气3392-33963471-34743530-35333619-3624下统山西组3744120上部泥岩夹砂岩、下部灰黑色泥岩夹砂岩及煤气3636-36403665-3677防塌防喷太原组37528灰岩夹泥岩及煤防喷防塌石炭系上统本溪组379038上部厚煤层、中下部为灰黑色泥岩夹薄层浅灰色细砂岩气3769-3779防卡奥陶系下统马家沟组（未穿）387989灰岩、白云岩夹凝灰质灰岩、膏盐岩气3797-38023806-3814防塌防喷H2S防卡浅气层及其它矿物岩层提示（。马家沟组有可能出现膏盐岩。井号层位气层井段（m）地层压力（MPa）地层压力系数井号层位气层井段（m）地层压力（MPa）地层压力系数延441本23685-4-367829.9840.8147本井目的层地层压力预测500m0.8147，钻井施工过程中应注意控制钻井液密度，保护好气层。邻井在三迭系以上地层一般使用钻井液密度小于1.03g/cm3，石千峰组～奥陶系的钻井液密度一般在1.06～1.07g/cm3邻井实钻情况调研（上部志丹群为大段棕红色砂岩地层可3150-200油井老区开钻前收集邻近油井资料，钻进过程中做好测斜工作，观察钻屑及钻井参数情况，防止发生碰套管事故。离子0PHLV-CMC防止膏岩蠕变缩径卡钻。H2S根据邻近探井在钻井、试气过程中无H2S显示，但要求本井在施工过程中加强对H2S气体的录井检测及防范，一旦发现有H2S气体，现场应严格按照SY/T5087-2005、SY/T5742-2007和SY/T5974-2007果断处理，确保人身及钻井设备的安全。邻井完井钻井液性能表2-3邻井钻井液使用情况井号层位井段(m)密度(g/cm3)粘度(s)丹7第四系0.00～530.001.0228第四系～刘家沟组530.00～3099.001.02～1.0428～35刘家沟组～马家沟组3099.00~3882.001.05～1.0730～49本井钻井液类型:水基钻井液全井钻井液体系要求1.28g/cm310mim0.5MPa，钻井液体系采用清水聚合物井段(垂深m)密度(g/cm3)漏斗粘度井段(垂深m)密度(g/cm3)漏斗粘度(s)失水(ml)备注0～5201.0330～35清水聚合物520～31571.03～1.0430～35<5清水聚合物3157～完钻井深≤1.0730～50<5聚磺体系目的层钻井液性能及特殊情况处理要求如果出现井涌、发生井喷等，严禁使用重晶石进行压井，应采用石灰石粉进行压井。压井钻井液密度不受设计泥浆密度限制，直至井下恢复正常为止。要求现场储备足够的石灰石粉(50t)和加重钻井液(重钻井液液量60m3，相对密度1.35g/cm3以上)。3.技术指标及质量要求井身质量要求表3-1丹15-2井井身质量要求表井段(m)井斜(°)全角变化率(°/30m)水平位移(m)井径扩大率(%)(m)井斜测量间距(m)～610.00＜2≤1≤10≤153010.00～54.86≤24.49≤51.53≤151054.86～601.1024.49定向井连续三点51.53～1189.76≤1530601.10917.30～24.4915.00～（90m）全角1189.761296.45～≤1510917.30020.83～15.00方位井段≤5°/30ｍ,其它斜井段≤1296.451323.25～≤150～6530020.83068.45～15.002°/30ｍ。1323.251335.58～≤150～6530068.45160.59～15.001335.581359.42～≤1530注：①本井直井段注意防斜打直，直井段610.00m，要求井斜不大于2度。②造斜点要求至少在表层套管鞋50m以下，相邻两口井造斜点需至少错开30-50m，实际造斜点要求控制在设计造斜点上下30m范围内，且应选在比较稳定的地层。③靶点确定原则如下：2号靶点垂深为本溪组底界垂直深度（详见钻井地质设计第2页115°~20°2三维坐标为2号靶点④定向井造斜率≤15°/100m（降斜率≤5°/100m）5⑤最大井径扩大率不大于15(%)。⑥定向井测斜间距：直井段不超过30m，斜井段采用无线随钻跟踪测斜，控制井斜、方位，注意防碰。中靶后MWD监测必须跟踪至完钻备注：具体参数要求参考钻井合同。防碰要求、施工单位以两井不碰为原则优选钻具组合、钻井参数。直井段严格防斜打直，控5m。、推荐采用随钻测斜工具测量井斜方位。根据邻井测斜数据做好防碰预算，做好防碰设计、防碰图，杜绝两井相碰事故。、每测一点都要扫描、搜索出正钻井与邻井的最近空间距离，预测出井眼轨迹的发展趋势以及与邻井是否有“相碰”的危险。防碰扫描间距应不大于20m，危险段不大于5m。、根据测斜数据及时计算并绘出防碰井与邻井在同一坐标系下井眼轨迹水平投影叠30m。15防碰应急措施井底5m以上活动、循环泥浆。复核轨迹数据，在确认无碰撞可能的情况下，可起钻换牙轮钻头再钻进1～330～50m3.4钻头、套管程序及固井质量要求钻头程序（钻头尺寸钻头程序（钻头尺寸×井深）套管程序（套管尺寸×井深）固井水泥段（m--m）固井质量要求311.1mm×520.00m244.5mm×520.00m0～520.00固井质量采用声波测井和变密度测井综合评价要求声幅≤30%；变密度215.9mm×4160.59m139.7mm×4155.59m0～4160.59测井反应弱套管波，强地层波。，4．工程设计井身结构井身结构示意图4-14-1井口4155.59马家沟组Φ139.7Φ215.9.594160二开井口520.00安定组Φ244.5Φ311.100520.一开环空水泥浆返深m套管下入深度（斜深）m套管下入地层层位套管尺寸mm钻头尺寸mm深)m井深(斜序开钻次定向井待钻井眼剖面数据轨道设计表井号：丹15-2井轨道类型：直-增-稳-降-稳井底设计垂深(m)：3879.00井底闭合距(m)：1359.42井底闭合方位(°)：160.27造斜点井深(m)：610.00最大井斜角(°)：24.49第1靶垂深(m):3744.00闭合距(m):1323.25靶半径(m):65.00第2靶垂深(m):3790.00闭合距(m):1335.58靶半径(m):65.00轨道参数井深(m)井斜(°)方位(°)垂深(m)水平位移(m)南北(m)东西(m)狗腿度°/30m工具面(°)靶点0.000.000.000.000.000.000.000.000.00610.000.00160.27610.000.000.000.000.000.00854.8624.49160.27847.4751.53-48.5017.403.000.003601.1024.49160.273346.731189.76-1119.92401.650.000.003917.3015.00160.273644.001296.45-1220.34437.670.900.004020.8315.00160.273744.001323.25-1245.59446.660.000.00A4068.4515.00160.273790.001335.58-1257.20450.820.000.00B4160.5915.00160.273879.001359.42-1279.62458.930.000.00轨道设计各点数据井深(m)井斜(°)方位(°)(°)垂深(m)水平位移(m)南北(m)东西(m)°/30m°/30m狗腿度°/30m工具面(°)0.000.00160.270.000.000.000.000.000.000.000.000.00610.000.00160.27160.27610.000.000.000.000.000.000.000.00640.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