长城钻探定向井服务能力

1、greatwall drilling companygreatwall drilling companyoctober 29, 2021october 29, 2021introduction on introduction on directional well technologydirectional well technologyservice capabilityexperienceperformance in irancontentservice capability1. lwd2. mwd3. gyro 4. single/multi shot 5. downhole motor

2、s 6. nmdc7. hwdp8. stabilizers (magnetic and nonmagnetic) 9. drilling jars and section mills10. maintenance and calibration equipmentequipmentequipment inventoryspecificationmakerquantitymwd87mwd6 3/4geolink1mwdyst-48rhailan73mwdb型mwdpulimen8mwdgmwd-48型jdwy5lwd6lwdmwd-mpr 6 3/4baker hughes1lwdmpr-lw

3、d 6 3/4baker hughes1lwdtrim-lwd 6 3/4geolink1lwdtrim-lwd8geolink1cgds-1cdgs-1 6 3/4bpmc1service capabilityequipment inventoryquantitymwd104lwd16cgds-11max temperature:150cmax pressure:20,000 psitransmission frequency:2mhz+400khzmeasuring accuracy:0.5mmeasuring range:0-2000 mdetecting radius:2.5mvert

4、ical resolution:30cmdata curve:32 original resistivity curves & 8 compensation data curveslwd technical parameterservice capabilityservice capabilitycomparison of lwd & logging curvelwdmanufacturequantityspecificationfewdhalliburton24 , 6 navigatormprbaker hughes2centerfirege54 , 6 8cprge16

5、trimge26 , 8wpraps26 bwrgwdc24 , 6 total16mwd technical parameterdescriptionrangeresolutionaccuracyinclination0-1800.10.2azimuth0-3600.351.0magnetic toolface0-3601.41.5gravity toolface0-3601.41.5service capabilityequipment inventoryquantitymwd104lwd16cgds-11mwdhl mwd 90 setsaps mwd 4 setsplm mwd 8 s

6、etsge mwd 2 setsservice capabilityexperienceperformance in irancontentin china, 44 services crew are working for cnpc;iran, 4 crews; sudan, 2 crews; kazakhstan 5 crews; colombia 3 crews; thailand, niger, cuba and uzbekistan each 1, total 18 crews servicing for oil company oversea.experienceexperienc

7、ein china, gwdc has drilled 1,039 horizontal wells, more than 5,000 directional wells which includes more than 3,000 cluster wells.globally, in past three years, gwdc has finished 146 horizontal wells in kazakhstan, sudan, thailand, cuba, colombia, uzbekistan and other regions.with the capacity of a

8、nnual operation 300 horizontal wells, and domestic and international operation experience.experienceservice capabilityexperienceperformance in irancontentperformance in iran1. basic introduction1) north azadegan oilfield has finished 6 horizontal wells, include one 3-d horizontal well and one multi-

9、later well, and other 4 horizontal wells are under operation.2) 2) drilled well: rate of oil drilling 100%, oil and gas shows good.3) team configuration no.itemquantitycomments 1 personnel18at least two years work experience globally, can satisfy 4 wells operation at the same time. 2mwdhl mwd 4 sets

10、can satisfy 6-7 wells operation at the same time 3lwdge 4 ” unitscan measure gamma and resistivity data, satisfy 4 wells operations at the same time2. operation challengesperformance in irangeological challenges:1.few drilling data in this block;2.big change in lithology;3.exist high pressure salt f

11、ormation above 1800m;4.leakage zone in horizontal section, the safety window of mud density is very narrow;5.high h2s in the reservoir.engineering challenges:1.3-d horizontal well, difficult to control the trajectory;2.horizontal section is over 1,000m, easy to produce annular hold block, and cause

12、well leakage;3.high friction and torque, backing wob and sand transport is big challenges for horizontal section.3. main technology application in north azadegan oilfieldperformance in irantrajectory optimization designsidetrack technologywell trajectory control technologyfriction torque analysis an

13、d control technologybit & motor optimization technologyanti-touch scanning technology for platform wells bha optimization package & safety drilling technology4. geology-oriented technologyperformance in iranbuild-up section by mwd+gamma and horizontal section with lwd (include mwd, gamma and

14、 resistivity)build-up section: to adjust the trajectory through mwd and motor, to distinguish the formation through gamma data and logging data; combined with mwd survey data and gamma data, client can calibrate the tvd.horizontal section: through the resistivity and gamma real-time data tracking re

15、servoir, through the survey data to adjust the track to ensure oil drilling rate of 100%, increase drilling efficiency and well production.gamma rayresistivityaznn-004 lwd logging curvesoftware platformprocessorgamma resistivitymwd4. geology-oriented technologyge-lwd systemmainly consists of two par

16、ts: downhole and surface equipment:downhole equipment mainly includes gamma instrument, resistivity logging instrument and survey instrument;surface equipment mainly includes system software platform and surface processor. aznn-004 lwd comparison with wireline logging curve1.resistivity data and wel

17、l logs match very consistently2.gamma data and well logs are basically the same.ge-lwd logging curvewireline logging curveour lwd can meet the needs of the geological, reservoir and effective drilling and trajectory.nowellmdkick-off pointdirectional sectionperiod ropslide footageslide ratioinstrumen

18、tlwd1aznn-004400022507252403.02366.250.50%hl mwd gamma2aznn-00740502300641187.7 3.42267.441.70%hl mwd gamma3aznn-00840202300630265.7 2.37240.138.10%hl mwd gamma4aznn-00939832300611244.52.5342.356.00%hl mwd gamma5aznn-010412822918132383.41300.837%hl mwd gamma6aznn-011398123206112082.9428546.60%hl mwd

19、 gamma4027 2294 672 231 2.94 300.344.98%the average md is 4,027, kick-off point is at about 2294m.in directional section, rop averages at 2.94. slide drilling ratio is 45%.nowellmdkick-off pointhorizontal sectionperiod ropslide footageslide ratioinstrumentlwd1aznn-004400022501025275.7 3.7228.82.80%ge lwdgamma/resistivity2aznn-007405023001109490.2 2.24117.610.70%ge lwd3aznn-008402023001086541.2 2.01165.615.30%ge lwd4aznn-0093983230