今天翻译了一整天有关油井钻井方面的文献,实在翻译不动了~~求求各位天涯

楼主:白开水2000 时间:2007-09-13 23:58:00 点击:629 回复:7
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Table 7 gives API free-water data for four MC slurries and settling-tube test data that correlate with downhole wellbore particle segregation along the vertical elliptical plane in a deviated wellbore. It is apparent that the higher-density slurries with a lower water/cement ratio have essentially no particle settling. Additives that add viscosity, control fluid loss, immobilize the water between particles, or give thixotropic properties to the slurry have been used to reduce or to prevent settling when lower water/cement ratios were not desirable.
   Most of the preceding MC applications were developed in drilling operations before 1985. Relatively new applications have since been developed for workover operations. The first new application was novel in that MC lost-circulation pills were pumped down completion tubing attached to permanent completion packers to cure losses by temporarily plugging the perforations in injection zones. This strategy saved the expense of massive losses of workover brine and conventional LCM pills and the extra rig time needed to cure the losses or to keep the hole full. Although the cost of MC was four to seven times that of conventional cement or CaC03 LCM, it demonstrated several unique properties that made it cost effective. The resulting reduction in workover costs made it far more economical than other materials. A second new application was setting MC across producing perforations for a temporary abandonment plug. The plug was to be removed later by drilling and acidizing to resume production without formation damage. A third new application was to protect a downhole screen across a water-injection zone from being damaged by debris during a workover. The MC inside the screen was to be removed later by acidizing. A fourth new application was the temporary sealing of a 305-m perforated oil-producing zone to stop severe lost circulation during a workover to drill deeper and to set a liner across a new zone. Conventional LCM’S failed to stop the losses, and a 15.6-m3 MC squeeze was pumped to seal the perforations. The liner was cemented without circulation losses, and the MC was removed from the oil zone with no production decreases.
  Of these four new applications, the first one has been used most frequently. This application was for a workover program in a field to introduce water-injection-zone selectivity in the form of multipacker completions. The technique of using MC lost-circulation pills, however, could have been applied to other workover to repair tubing, casing, or packer leaks or abandon old perforations and reperforate for better production.
  Although the application was developed in a field where conditions justified a bullhead squeeze down the existing completion tubing, well conditions in other fields may warrant the use of concentric or coil tubing to circulate the slurry to the perforations and then to squeeze the slurry into the zone. The bullhead slurry placement method was selected by comparison of cost vs. effective placement results in eliminating or substantially reducing workover-fluid loss and zone permeability damage. The minimum acceptable reduction in the rate of losses was based on the cost of the lossses and the rig’s ability to keep the zone overbalanced by maintaining a fluid column with adequate hydrostatic pressure. MC has been the most cost-effective way of obtaining the minimum acceptable reduction in rate of losses. This included total elimination of losses by MC in many wells in the workover program. The volume of MC slurry used has varied between 1.59 and 15.9 m3, following the general guideline that slurry volume should equal three times the liner or casing volume from the top of the perforations to the lowest one plus the liner or casing volume from the top of perforations to 60m below the end of the packer tailpipe.
  

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楼主白开水2000 时间:2007-09-13 23:59:30
  MC--镁氧水泥
  LCM--lost circulation materials
  
  
  
作者:niunai003 时间:2007-09-14 09:56:29
  续办
作者:tao9hu6aa4n 时间:2007-09-14 14:29:04
   请继续免費
作者:峰的青青 时间:2007-09-14 15:15:51
  表7空气游离水数据为四个管委会泥浆沉降管试验数据,相关井下井筒隔离粒子沿垂直平面椭圆在斜井井筒。显而易见,高密度水泥浆具有较低的水/水泥比率基本上没有粒子沉降。添加剂放入粘度,控制水分流失,固定水粒子之间,或者给予触变性,以泥浆已使用,以减少或防止沉降时,低水/水泥比率并不理想。
  大多数先前管委会申请开发钻井作业前, 1985年。较新的应用至今已发展为修井作业。第一个新的应用是小说管委会失去流通丸被抽下来完成油管附完成永久性封治愈损失暂时堵塞齿孔注射区。这一战略节省开支庞大损失修井卤水和传统的lcm丸额外钻机需医治的损失或把孔满。虽然成本管委会4至7倍,常规水泥或法制来临,它表现出几个独特的性能,使之符合成本效益。由此降低修井成本得很远,更经济,比其他材料。第二个新申请设置管委会横跨产齿孔为暂时放弃堵塞。插件是拆除后,由钻井和酸化恢复生产无地层损害。第三个新的申请,以保护井下屏幕跨越注水区被损坏的碎片在修井。管委会内屏幕则必须拆除后酸化。第四个新的申请被暂时封闭305米射孔产油区,以阻止严重堵漏中修井钻得更深定班轮跨越一个新的区。常规的lcm的没能阻止损失, 15.6 -立方米管委会挤压抽封齿孔。班轮被边缘化流通无损失,管委会去除油区无生产下降。
  这四个新的应用,一是已经使用最频繁。这项申请是一个修井计画在外地引进注水带选择性的形式multipacker落成。该技术利用管委会失去流通丸,但有可能被应用到其他修井修复油管,套管,或包装泄漏或放弃旧齿孔和reperforate更好地生产。
  虽然应用开发的一个领域条件有道理缘挤压下来完成现有油管,条件好,在其他领域可能需要使用同心圆线圈或油管分发泥浆向齿孔,然后挤压成浆区。该浆缘安插方法选定比较成本与效益安插结果消除或大大减少修井液损失和区渗透破坏。最低可接受率减少损失,是基于成本的股价和钻机的能力,以保持正压区保持流体柱足够水压。管委会一直是最符合成本效益的方式获得最低可接受的减少率的损失。这包括彻底消除损失由管委会在许多井修井项目。数量管委会浆用不等1.59和 15.9立方米,以下一般准则浆量应等于三倍衬里或套管数量从上的齿孔,以最低一加衬垫或套管数量从顶部向齿孔低于6000年底的封尾。
作者:峰的青青 时间:2007-09-14 15:17:14
  表7空气游离水数据为四个管委会泥浆沉降管试验数据,相关井下井筒隔离粒子沿垂直平面椭圆在斜井井筒。显而易见,高密度水泥浆具有较低的水/水泥比率基本上没有粒子沉降。添加剂放入粘度,控制水分流失,固定水粒子之间,或者给予触变性,以泥浆已使用,以减少或防止沉降时,低水/水泥比率并不理想。
  大多数先前管委会申请开发钻井作业前, 1985年。较新的应用至今已发展为修井作业。第一个新的应用是小说管委会失去流通丸被抽下来完成油管附完成永久性封治愈损失暂时堵塞齿孔注射区。这一战略节省开支庞大损失修井卤水和传统的lcm丸额外钻机需医治的损失或把孔满。虽然成本管委会4至7倍,常规水泥或法制来临,它表现出几个独特的性能,使之符合成本效益。由此降低修井成本得很远,更经济,比其他材料。第二个新申请设置管委会横跨产齿孔为暂时放弃堵塞。插件是拆除后,由钻井和酸化恢复生产无地层损害。第三个新的申请,以保护井下屏幕跨越注水区被损坏的碎片在修井。管委会内屏幕则必须拆除后酸化。第四个新的申请被暂时封闭305米射孔产油区,以阻止严重堵漏中修井钻得更深定班轮跨越一个新的区。常规的lcm的没能阻止损失, 15.6 -立方米管委会挤压抽封齿孔。班轮被边缘化流通无损失,管委会去除油区无生产下降。
  这四个新的应用,一是已经使用最频繁。这项申请是一个修井计画在外地引进注水带选择性的形式multipacker落成。该技术利用管委会失去流通丸,但有可能被应用到其他修井修复油管,套管,或包装泄漏或放弃旧齿孔和reperforate更好地生产。
  虽然应用开发的一个领域条件有道理缘挤压下来完成现有油管,条件好,在其他领域可能需要使用同心圆线圈或油管分发泥浆向齿孔,然后挤压成浆区。该浆缘安插方法选定比较成本与效益安插结果消除或大大减少修井液损失和区渗透破坏。最低可接受率减少损失,是基于成本的股价和钻机的能力,以保持正压区保持流体柱足够水压。管委会一直是最符合成本效益的方式获得最低可接受的减少率的损失。这包括彻底消除损失由管委会在许多井修井项目。数量管委会浆用不等1.59和 15.9立方米,以下一般准则浆量应等于三倍衬里或套管数量从上的齿孔,以最低一加衬垫或套管数量从顶部向齿孔低于6000年底的封尾。
楼主白开水2000 时间:2007-09-14 19:12:43
  多谢楼上大虾~~~
  
  社会主义社会人们的素质就是高~~人品一等一滴~~~~~
作者:翻灯蝙蝠 时间:2009-05-12 18:43:16
  这是机器翻译的啊,这要用专业工具才可以翻译通的
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