英文翻译-石油钻井方面的When cementing the 133/8-in. casing,the top wiper plug did not bump because of a failed drillpipe wiper dart.A cleanout run was performed, and the 133/8-in. casing was pressure tested to 345 bar against a deep-set me

英文翻译-石油钻井方面的When cementing the 133/8-in. casing,the top wiper plug did not bump because of a failed drillpipe wiper dart.A cleanout run was performed, and the 133/8-in. casing was pressure tested to 345 bar against a deep-set me
英文翻译-石油钻井方面的
When cementing the 133/8-in. casing,the top wiper plug did not bump because of a failed drillpipe wiper dart.A cleanout run was performed, and the 133/8-in. casing was pressure tested to 345 bar against a deep-set mechanical plug. After the 133/8-in. casing was cemented in place, the 133/8×20-in. annulus was fractured for future cuttings injection.
121/4×131/2-in. Hole Section: 2820 to 7415 m. The drilling BHA was a 121/4-in. PDC bit, a 9-in. RSS with inclination-hold feature, an 8-in. Compensated dual resistivity with gamma ray tool MWD tool, and a 121/4×131/2-in.underreamer. This BHA drilled 4595 m in one run. The hole was opened to 131/2 in. to increase the margins for running the long 103/4-in. liner. Good performance was obtained from the RSS with respect to the inclination hold setting. The nudge command was very accurate. At section total depth(TD), the well was only 4.5 m away from the planned trajectory. No shocks were recorded while drilling, and the stick/slips were also maintained at a minimum.
Simulations and risk evaluations concluded that liner flotation was not required. Detailed friction analyses were performed, with both internal and external resources, to prove that the liner could be run conventionally. To verify the drag simulations, three other Visund wells above 7000 m MD were analyzed and calibrated for friction factors.
By use of these friction factors, a liner-running string was designed to withstand helical buckling. The running string consisted of 300 m of 8-in. drill collars above the hanger and 2400 m of 65/8-in. heavyweight drillpipe (HWDP) to surface.
81/2×97/8-in. Hole Section: 7265 to 9082 m. A pilot hole was planned through the oil/water contact (OWC), because of the high TVD uncertainty.A pumpdown gyro was run inside the 57/8-in. drillpipe at 6500 m to verify the MWD survey before drilling out the 103/4-in. liner. The MWD survey was used as the definitive survey because it was regarded as the better TVD measurement, proved later when drilling through the OWC. However, the gyro azimuthal measurement was regarded as better, and this information was used for optimizing reservoir well placement.
The planned well path was followed accurately, with a maximum DLS of 3.8°/30 m and the requested 77° inclination through the Draupne formation.The TD for the section was set when the OWC was detected in a sand formation.When running in with the cement stinger to plug back the pilot hole, the Draupne formation was found to have collapsed. The Draupne formation is an unstable shale formation. Fig. 3 shows a laboratory test on a core sample from the Draupne formation that was drilled through at a 90° angle. The cement plug then was set as planned by use of the pump-and-pull method from the top of the Draupne formation at 7801 m into the 103/4-in. liner.

英文翻译-石油钻井方面的When cementing the 133/8-in. casing,the top wiper plug did not bump because of a failed drillpipe wiper dart.A cleanout run was performed, and the 133/8-in. casing was pressure tested to 345 bar against a deep-set me
当巩固133/8-in .套管顶端雨刮器插件没有凸点,因为一个失败的钻柱清洗擦拭dart.A运行情况,并133/8-in .套管压力测试,以345杆打击了深刻的集机械插件.后133/8-in .套管是巩固到位,133 / 8 × 20中.环断裂为今后的剪报注射.四分之一百二十一× 131/2-in .孔科：2820年至7415米钻井钻具组合是一个121/4-in .PDC钻头,9中.与倾角的RSS持有功能,8中.双电阻补偿与伽玛射线测量工具,工具,并4分之121 × 131/2-in.underreamer .这种钻具组合钻4595米在一分.这个洞是开放2分之131若要增加利润的长期运行103/4-in .班轮运输.良好的业绩获得的RSS方面倾斜举行的设定.命令的推动是非常准确的.在一节总深度（运输署） ,以及只有4.5米以外的计划轨迹.没有记录冲击钻,并坚持/单也保持在最低限度.
模拟与风险评估得出结论认为,班轮浮选没有必要.详细的摩擦进行了分析,与内部和外部资源,以证明该班轮可常规运行.为了验证模拟的拖累,其他三个Visund水井上面七〇 〇 〇米博士进行了分析和校准的摩擦因素.
通过使用这些摩擦因素,班轮运行字符串的目的是要经受螺旋屈曲.运行字符串包括300米8的.演习衣领衣架以上2400米的65/8-in .重量级钻柱（ HWDP ）的表面.
二分之八十一× 97/8-in .孔科：7265至9082米洞的试点,计划通过油/水接触（ OWC的） ,因为高TVD格式不确定性.A pumpdown陀螺运行57/8-in内.在钻柱六五○○米核实随钻前调查的103/4-in .班轮运输.的分布调查被用来作为最终的调查,因为它被视为更好的TVD格式测量,证明后,当钻井通过OWC的.然而,陀螺方位角测量被看作是更好的,这个信息被用于优化水库以及安置.
计划以及道路其次准确,最大波3.8 ° / 30米和所要求的77 °倾角通过Draupne形成.运输署的部分是当OWC的检测沙形成.何时运行与水泥毒刺插入回来试点洞,形成了Draupne发现有倒塌.该Draupne形成一个不稳定的页岩的形成.图.3显示一个实验室测试样品的核心从Draupne的形成是通过钻在一个90 °角.水泥插件然后是按计划使用的泵和拉法从上方的Draupne形成七千八百零一米到103/4-in .班轮运输.