钻井工程设计ENGLISH.doc

OPERATOR: Conocophillips WELL NAME: PL13-1-1 CONTRACTOR: COSLPL13-1-1 钻井工程设计Drilling Program 设计 Designed by 审核 Verified by 批准 Approved by 中国海洋油田服务股份有限公司China Offshore Oilfield Services, Ltd.Jan. 2003目 录TABLE OF CONTENT一、基本数据 General Information2二、井身结构 Well-bore Structure3三、地质部分 Geological Information5四、套管和固井计划 Casing and Cementing Program6五、钻具组合 Bottom Hole Assembly Program8六、钻头计划 Bit Program9七、泥浆计划 Mud Program10八、测井计划 Wire-line Logging Program10九、弃井计划 Well Abandonment Program11十、施工程序 Operation Procedure13十一、压力试验 Pressure Testing16十二、施工进度计划 Timing Estimate Schedule17十三、井口装置图 Well Head Assembly19附件、质量、健康、 Requirement of Quality & Health 安全、环保要求 & Safety & Environment一、 基本数据 General Information井名:PL13-1-1Well Name:PL13-1-1作业者:菲利普斯中国有限公司License Operator:Phillips China Inc.井别:初探井Well Class:Wildcat Well井型:直井Well Style:Vertical Well作业区块:渤中区块 CA 11/05Block:BoZhong Block 11/05构造位置:蓬莱13-1Geological-Structure Location:PengLai13-1 Structure深度零点:转盘面The Zero Depth:Rotary Table水深:27.00米(平均海平面)Water Depth:27.00 m(MSL)气隙:8 米Air Gap:8 m转盘面至平均海平面:23米RT Elevation:23m计划井深:4200 米（转盘面）Propose Depth:4200 m(RKB)总包井深:1800 米（转盘面）TurnKey Depth:1800 m(RKB)井口座标:北纬: 38°3744.076N:东径: 120°0910.08EWell Surface Location Coordinates:Latitude: 38°3744.076N :Longitude: 120°0910.08总承包商 Turnkey Contractor:中海油田服务股份有限公司 COSL钻井平台 Drilling Rig:渤海八号 BoHai No.8二、井身结构 Well Bore Structure1. 井眼程序 Well bore program26" x 270m12-1/4" x 1800m + 8-1/2" x 4200m2. 套管程序 Casing program20" x 265m9-5/8" x 1795m 注意：9-5/8" 套管下入深度将取决于地质情况，在深度1795米左右处选择一胶结好的泥岩层坐套管鞋，。Note:The proposed drilling plan is to set 9-5/8" casing at 1795 m in a claystone-rich zone in the Minghuazhen. 三、地质描述 Geoscience Description Figure 2. PL13-1-1 well prognosis based on seismic interpretation四、套管和固井计划 Casing And Cementing Program1. 20"隔水套管和固井计划 20" Casing and Cementing Program20"CasingHole Size(in)Casing Size(in)Weight(lb./ft)GradeThread typeWall(mm)Make-uptorqueDepth(m)2620133K55BTC16.1265CEMENTINGCSG Size (in)Slurry Wt. (SG)Top of cement(m)F/S(m)F/C(m)Centralizer(ea)Remark201.58/1.90ML265253101 Stage备注：固井作业的其它参数，详见固井承包商所作的固井设计。Note: Other operational parameter for cementing job, seeCementing Programprepared by cementing contractor.2.9-5/8"套管和固井计划 9-5/8"Casing and Cementing Program9-5/8" CasingHole Size(in)Casing Size(in)Weight(lb./ft)GradeThread typeWall(mm)Make-up Torque(lb.ft)Depth(m)12-1/49-5/847N80LTC128929.81795备注：9-5/8"套管下入深度以封住明化镇组泥岩和胶结不好的砂岩层段，且套管鞋坐在泥岩层。Note:Run 9-5/8"CSG to seal the mudstone and the poorly consolidated sand in Minghuazhen, and setthe casing shoe into the mudstone.CEMENTINGCsg Size (in)Slurry Wt. (SG)Top of cement (m)F/S(m)F/C(m)Centralizer(ea)Remark9-5/81.58/1.89Mudline17951783301 Stage备注：1.9-5/8"固井，投顶塞后再打3bbl压塞浆。2.固井作业的其它参数，详见固井承包商所作的固井设计。Note:1. During 9-5/8"cement operation , after dropping top plug , pump 3 bbl cement slurry on the plug in case plug rotating while drilling cement.2. Other operational parameter for cementing job, seeCementing Programprepared by cementing Contractor.套管机械性能 Mechanical properties of casing :9-5/8" N80 47 lb./ft 套管下深 1795米：9-5/8"N80 47 lb./ft Casing set at 1795m:1) 管体屈服强度: 483(103 daN)，安全系数是10.18;Pipe body yield strength: 483(103 daN), Safety factor is 10.182) 抗挤强度: 32.8 MPa，安全系数是16.35;Collapse resistance: 32.8 MPa, Safety factor is 16.35;3) 内屈服压力: 47.3 MPa，安全系数是23.58。 Internal yield pressure: 47.3 MPa, Safety factor is 23.58.说明: 安全系数按全部掏空计算，MW = 1.14 g/cm3Note:The safety factor is accounted in the condition of fulfilling casing with air, MW = 9.5 ppg五、钻具组合 Drill Assembly Program1、26" Hole26"BIT + F/V(TOTCO RING)+ 9"DCx2 + 26"STAB + 9"DCx2 + 26"STAB +X/O 8"DCx6 + 7-3/4"F/J + 7-3/4"JAR + 8"DCx2 + X/O + 5"HWDP2、12-1/4" Hole12-1/4"PDC + 9-5/8"PDM + 12"STAB + F/V(TOTCO RING) +8"NMDC*1 + 8"MWD + 8"NMDC*1 + 7-3/4"F/J + 7-3/4"JAR + 8"DCx2 + X/O + 5"HWDPx1712-1/4" Rock Bit + 8"DCx1 + 12-1/4"STAB + 8"DCx2 + 12-1/4"STAB + 8"DCx6 +7-3/4"F/J + 7-3/4"JAR + 8"DCx2 +X/O + 5"HWDPx1712-1/4" Rock Bit + 8"DCx1 + 12-1/4"STAB + 8"DCx2 +7-3/4"F/J + 7-3/4"JAR + 8"DCx2 +X/O + 5"HWDPx178-1/2" Rock Bit + 6-1/2"DCx1 + 8-1/2"STAB + 6-1/2"DCx2 +6-1/2"F/J + 6-1/2"JAR + 6-1/2"DCx2 + 5"HWDPx17备注：1.具体钻具组合将由钻井监督根据现场作相应调整。2.该井所使用的浮阀应是有孔浮阀，以便井控作业。Note: 1. BHA can be adjusted by drilling supervisor on rigsite according to the formation to be drilled through.2. The F/V to be used in this well must be pore-valve in order to perform well-control operation.六、钻头计划 Bit ProgramBit Size (in/mm)Interval (m)Bit TypeIADC CodeQuantity26”220W111111117-1/2”Drill cement plugGJT115L1.1.41*12-1/4”1530G535M3231 MAX-GT111518-1/2”Drill cement plug MX-C11151备注: 现场具体使用的钻头类型将结合现场地质情况，由钻井监督进行调整。Note: The bits that will be run can be changed by drilling supervisor on rigsite according to the formations being drilled through.七、泥浆计划 Mud Properties Program井眼尺寸 Hole Size (in)测量深度Interval MD (m)密度Density(ppg)粘度 Vis(s)失水Water Loss(cc)泥浆类型 Drill Fluid Type26"-2708.53045n.cGEL / Sea Water 12-1/4"-17009.0-9.54055<12KCL / PLUS 8-1/2"-42009.5-10.04055<5KCL / JLX / PLUS 备注:1.在12-1/4"和8-1/2"井段，实际使用的泥浆密度将取决于现场监督，考虑的因素包括地层压力地层应力等，以维持井壁稳定为原则。2.在12-1/4"和8-1/2"井段，现场备加重材料（重晶石粉）40-60吨作为应急压井用。3.在8-1/2"井段，泥浆要控制失水，且具有油层保护特性。 Note:1. In 12-1/4"hole and 8-1/2" hole section, actual mud weights will be decided by onsite drilling superintendent in order to balance the formation pressure and formation stresses to ensure the well bore stable. 2. In 12-1/4"hole and 8-1/2"hole section, there should be prepared weighting materials(Barite) 40-60 Tons on site as contingence use.3. In 8-1/2"hole section，the mud must be controlled water loss，and have oil -zone protection property.八、测井计划 Wireline Logging Program 电测为日费作业,所有的电测项目由菲利普斯决定。All E-logging items will be done on dayrate basis and dicided by company.九、弃井计划 Well Abandonment Program1.电测结束后，下5"光钻杆至可能的油或水层以下50米处，打水泥塞，其返高要求高于可能的油或水层顶部200米。If there is no show in the well, then run in hole with 5" open-ended drill pipe to 50m below the bottom of potential oil/water zone after the logging, set a cement plug which should be returned to 200m above the top of the potential zone. 2.在上一层套管鞋以下100米处，再打一个200米的水泥塞，候凝，试压2000psi。At 100 meters below the last casing shoe, set 200 meters of cement slurry again, wait on cement, then pressure test the plug to 2000psi with 5" open-ended drill pipe.3.拆除13-5/8"防喷器组和变径法兰，拆9-5/8"套管头。N/D 13-5/8"BOP stacks and adapter. Nipple down 9-5/8"casing head.4.下9-5/8"套管水力割刀至泥面以下6米左右，割9-5/8"套管，起钻，甩9-5/8"套管。RIH w/ 9-5/8"hydraulic casing cutter to 6 meters below seabed, cut 9-5/8"CSG, POOH and lay down 9-5/8"CSG.5.拆13-5/8"套管头和20"套管头。N/D 13-5/8" casing head and 20"casing head.6.下入20"套管割刀至泥面以下4米处，割断20"套管。RIH w/ 20"hydraulic casing cutter to 4 meters below the seabed, cut the 20" conductor.7.试提20"导管, 如果没有割断, 重复上述作业; 如果证明割断, 则Pull up 20"conductor. If it is not cut off, cut it again. And if it is proved to be cut off, then8.下入5"光钻杆至泥面以下50米，打水泥帽。RIH w/ 5"open-end DP to 50 meters below seabed, spot cement plug onto Seabed. 9.起钻，甩20"导管。POOH the 5"DP. Lay down the cut 20" casing.弃井图十、施工程序：Drilling Procedure 1. 确认转盘面海拔高度。Confirm the distance from mean seal level to rotary table.2. 26" 井眼和 20" 隔水套管。Drill 26" Hole and set 20"CSG.2.1. 将26" BHA (承托环)下放到泥面，投测，测斜结果小于0.5度，开孔作业。否则，重复前述作业。 Run the 26"BHA (w/Totco ring) to mud-line, drop a Totco to check BHA angle. Spud the well if angle is less than 0.5 Degree; otherwise repeat the above operations.2.2. 用海水钻进到270米左右，具体深度由20"套管长度来调整。Drill ahead to +/-270 meters(RKB) with GEL/Sea-water, the actual TD should be based on the measurement of the 20" CSG.2.3. 前8米排量为500 GPM，以后逐渐增加到最大排量;钻压<5T，钻速<30米/小时；转速 5070rpm。 The flowrate should be 500 gpm for the first 8m, and then increase the pump flowrate to maximum, WOB<5T, ROP<30M/H, RPM 50-70rpm.2.4. 高粘度泥浆6RPM的读数接近井眼直径。Hi-Vis sweep keeps a 6-RPM gel reading approximately equal to the hole diameter.2.5. 每钻进3根钻杆，泵入高粘度泥浆200冲。Pump 200 strokes of Hi-Vis sweep every 3 joints drilled.2.6. 钻进到设计井深，泵入高粘度泥浆清扫井眼，循环量为1.2倍的井眼体积。Drill ahead to TD, pump Hi-Vis mud to sweep the hole. The total volume of circulation is 1.2 times of the wellbore volume.2.7. 投测，起钻到泥面（钻头不能出井眼)，打捞测斜仪。Drop TOTCO, POOH (keep the bit in the hole), retrieve TOTCO.2.8. 下钻探沉砂。RIH to tag the bottoms-up.2.9. 循环调整泥浆。Circulate and adjust mud.2.10. 起钻。POOH.2.11. 下20"套管，除最后两根，每根灌海水。Run 20" CSG; fill CP w/ seawater every joint, except for the last two.2.12. 套管入泥时要注意悬重变化。Pay attention to the changes on the weight indicator while running the 20"CSG into the mudline.2.13. 下内管，固井。Run inner string，cement the CSG. 2.14. 固井结束后，拔出插入头，检查回流。Stinger out, Check the back flows after cementing.2.15. 如果无回流，起钻; 否则，蹩压候凝。POOH if the float valve works. Otherwise hold pressure for WOC.2.16. 组装21-1/4"防喷器，功能测试,试压500PSI×5分钟。N/U 21-1/4" BOP, function and pressure test 500PSI*5min.3. 12-1/4"井眼和9-5/8"套管Drill 12-1/4" hole and set 9-5/8" casing 3.1.组合17-1/2" BHA(牙轮钻头)，下钻，钻浮鞋及水泥塞并进入新地层。M/U 17-1/2" BHA (Rock bit)，RIH, Drill 20" F/S and cement plug into new formation .3.2.起钻，换 12-1/4" 导向钻具，下钻。Trip out, change to 12-1/4" Direction-BHA，RIH.3.3.前30米，泵速80SPMx2，转速60rpm。Drill first 30m with pump speed 80SPM x2 and rotary speed 60rpm.3.4.钻进至1000米，短起下到套管鞋一次。Drill ahead to 1000M, short trip to F/S .3.5.钻进到预定深度1800M。钻进中及时调整钻井参数，来保证良好的携砂。Drill ahead to planned depth 1800M. Adjust the drilling parameters as necessary to make sure all the cuttings returned out of the hole on time .3.6.钻进中，严格注视气全量的变化，根据情况及时调整泥浆性能，防止气涌发生。Watch closely the total gas percent during drilling and condition mud as necessary in case gas kick occurs.3.7.起钻前溢流检查10分钟。Flow check for 10min. Prior to POOH.3.8.短起下至20"套管鞋。 (控制起下钻速度)Short trip to 20"CSG shoe.(Control trip speed)3.9.循环调整泥浆，垫高粘度泥浆50米，起钻。控制起钻速度，防止抽吸。Circulate and condition the mud, pump 50m high viscosity mud sweep on bottom of the hole. POOH. Control the speed of POOH to avoid swabbing. 3.10.下9-5/8"套管。Run 9-5/8"casing. 3.11.固井。Cement the 9-5/8"CSG. 3.12.固井结束后，检查回流。Check the back flows after cementing.3.13.如果无回流, 起钻; 否则, 蹩压候凝。POOH if the float valve works. Otherwise hold pressure for WOC.3.14.候凝，候凝时间视水泥样品情况来确定。Wait on cement. Time of waiting on cement is up to slurry sample condition.3.15.安装13-5/8"套管头、9-5/8"套管头和BOP组，功能和压力试验。N/U 13-5/8" casing head and 9-5/8"casing head & BOPs, BOP function and pressure test.3.16.安装防磨补心。Set the wear bushing.4. 8-1/2"井眼 (日费段)Drill 8-1/2"hole（Dayrate）十一、压力试验 Pressure testing1. 二开井口试压 Pressure test before drilling 12-1/4" hole21-1/4"防喷器，液控阀 21-1/4" BOP, hydraulic operation valve 500 PSI20" 套管 Casing 500 PSI2. 三开井口试压 Pressure test before drilling 8-1/2" hole 9-5/8" 套管 Casing 3000 PSI9-5/8"套管头密封 Casing head seal 2500 PSI (Pack off test)9-5/8" 套管头 Casing head 3000 PSI 万能防喷器，按3000 PSI检验。Annular BOP will be pressure tested to 3000 PSI.单、双闸板防喷器，按3000 PSI 检验。Single、Double rams will be pressure tested to 3000 PSI.盲板防喷器，按套管试压标准检验。Blind rams will be pressure tested as the standard of casing pressure test.3. 管汇试压 Pressure test against manifold压井及阻流管汇，10000PSI按5000 PSI 检验,5000PSI按3500 PSI 检验。Kill and choke manifold will be pressure tested to 5000 PSI(Rated working pressure is 10000PSI) & 3500PSI(Rated working pressure is 5000PSI).立管管汇，按3000 PSI检验。Stand manifold will be pressure tested to 3000 PSI.注意：所有试压先试低压300 PSI x 5分钟，然后试高压稳压观察10分钟。Note: Low pressure test 300 PSI x 5min, then high pressure test, hold the pressure for 10 minutes.十二、施工进度计划 Operation proceed Schedule钻井作业各工序时间分配计划（天）Drilling Operation Schedule No.项目 Item Turnkey time of operationDayrate time of operation1Towing 拖航0.52Preparations for Spud (incl. positioning, jacking-up, pre-loading and ballast) 钻前准备(包括就位，升船，压载)1.03Drill 26" hole to 270 Meter26"开孔(270米)1.04Set 20" CSG ,CMT and N/U 21-1/4"BOP下20"套管，固井，装21-1/4"防喷器2.05Drill 12-1/4" hole to 1800 meter钻12-1/4"井眼至1800米8.56Set 9-5/8" CSG, CMT and N/U well-head下9-5/8"套管、固井和装井口3.07RIH 8-1/2" BHA, drill CMT to shoe FIT and POOH下8-1/2"BHA，钻穿套管鞋，做地层整体试验，起钻1.08Drill 8-1/2" hole to TD 4200 meter钻8-1/2"井眼至完钻井深4200米9Run 8-1/2" hole Electrical logging8-1/2" 井眼电测10Plug & Abandonment弃井2.011Unload卸载1.012Preparation for Towing and Jack down拖航前准备及降船2.0合 计 Sub Total (days)22总 计 TOTAL (days) 十三、井口装置图 Well Head Assembly Page 20