Newspapers might have lost circulation, but they haven\'tlost their readership.
报刊的发行量可能下降了，但它们的读者并没有流失。
When 0.3% - 0.5 % thixotropic regulator was added, the lost circulation material had good thixotropy.
触变调节剂使堵漏剂具有良好的触变性，其用量占主剂的0.3%- 0.5%较佳。
Therefore lost circulation has always been an urgent technical problem in the process of well drilling.
所以，井漏一直是钻井工作中亟需解决的技术难题。
Drilling risks include the risk of lost circulation, well fall risk, the risk of Wells flow, and sticking risk.
钻井风险主要包括井漏风险、井塌风险、井涌风险、卡钻风险。
According to the situation of drilling lost circulation in Zhongyuan Oilfield, a side hydraulic tool has been designed.
针对中原油田井漏的情况，设计了随钻防漏的侧向水力工具。
In the well drilling production, lost circulation has been the difficult problem which is common and difficult to avoid.
石油钻井施工中，井漏一直是常见而又难避免的问题。
In Yanchang oilfield, serious lost circulation often occur during drilling in Panlong and Zichang areas, directly affect drilling rate.
延长油矿管理局在蟠龙、子长等主生产区经常遇到严重漏失井，直接影响了钻井速度。
In the process of drilling, lost circulation can often result in serious drilling accidents, delay the period of drilling and increase the cost of drilling.
钻进过程中，井下泥浆的漏失往往导致严重的钻井事故，从而延长钻井周期，增加钻井成本。
Drilling a well in the broken carbonate strata where the pressure gradient is widely different, lost circulation is an important factor that makes the rig time losed.
在压力梯度悬殊的碳酸盐岩破碎地层中钻井，井漏是损失钻机月的重要因素。
Drilled formations are complex with unstable wall. Lost circulation, well kick, borehole collapse, diameter shrinkage, sticking and other complex situations often occur.
钻遇地层复杂，井壁稳定性差，井漏、井涌、井塌、缩径、卡钻等井下复杂情况频发；
The advantages of gas drilling are: high drilling efficiency, effectively controlling formation damage, preventing from lost circulation and adhesive drill pipe sticking.
气体钻井的优点有：钻井效率高、有效保护油气层、防止井漏和黏附卡钻。
Laboratory experiments were done on the evaluation of a composite lost circulation material (LCM) prepared by Polyacrylamide and cotton fibers on a FA Model Filter tester.
用FA型可视式中压砂床滤失仪对聚丙烯酰胺和棉纤维复合堵漏剂进行了室内试验研究。
The experiment of new lost circulation simulator has a good repeatability. The formula acquired by experiment was applied directly to the lost circulation control in field.
新型堵漏仪实验结果重复性好，所形成的配方可直接应用于现场堵漏作业。
Abnormal high pressure systems have formed in Anan Block of Erlian oilfield due to long time of water flooding, kicks, lost circulation and hole collapse are frequently encountered.
二连油田阿南区块，由于长期注水，油气层出现明显的异常高压，地层原始压力遭到破坏，造成了井涌、井塌、井漏等复杂事故。
It has obvious actions of leakproof and lost circulation in low pressure absorbent formation because of containing a lot of foam with high shear force and high structural viscosity.
由于含有大量高切力、高结构粘度的泡沫，在低压渗漏地层有显著的防漏堵漏作用。
This article introduced the research and application of leak resistance and sealing technology while drilling at home and abroad, and conventional method of dealing with lost circulation.
文章介绍了目前国内外随钻防漏堵漏技术的研究与应用现状及常规处理井漏的方法，针对渗透性漏失及裂缝性漏失地层特点，首次提出了基于物理法随钻防漏堵漏技术。
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.
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。
This paper presents a reverse cement squeezing technique which sets the liner in the non major buried hill reservoir and then cements the liner utilizing the lost circulation in buried hill interval.
文中介绍了将尾管坐入潜山非主力油层，再利用潜山地层漏失进行反挤水泥固井。
If infusion was given by the supplying arteries outside the tumor, it would cause the formation of plentiful collateral circulation, and lost the another opportunities of embolization.
瘤外供血动脉栓塞会导致丰富的侧支循环形成，失去再次栓塞的机会。
It is very important to measure the volume change of mud in mud pit for the safe drilling, the control of well blowout and the lost of circulation.
测量泥浆池中泥浆体积的变化对于安全钻井，控制井涌、井漏具有十分重要的意义。
The historical data indicated, since 1997, the price competitive advantage of Jilin Province maize lost gradually, there are two reasons: production cost and circulation cost.
历史数据表明，自1997年之后，吉林省玉米的价格竞争优势逐渐丧失，其中既有生产成本的原因，又有流通成本的原因。
Since 1990, 2,200 newspaper jobs have been lost, as circulation has slipped more than 11 per cent.
1990年以来，报纸发行量下滑了不止11个百分点，2200名报人随之失业。
However, its function was often lost upon the serious circulation loss occurring to the formation with low pressure coefficient and relatively macro fractures.
但对地层压力系数低且裂缝较大的严重井漏往往失去作用。
In counteracting lost-circulation problems, a lost-circulation pill prepared with flaked or fibrous material is designed to plug the perforations or formation interval losing the fluid.
在解决循环漏失问题时，由絮片材料或纤维材料配制的堵漏小段塞被设计用于封堵射孔孔眼或漏失流体的层段。
Testing the hydraulic characteristics of lost-circulation zone is a basic work in classifying 1ost-circulation zones and laying down the treatment measures.
对漏层水力特性的测试是漏层分类和制定漏层处理措施的基础工作。
The tests both in lab and on site show that this system can improve the compressive strength of the lost-circulation formation and meet ther…
室内和现场试验表明，该体系能够提高漏层的承压能力，满足钻井、固井工程施工的要求。
The tests both in lab and on site show that this system can improve the compressive strength of the lost-circulation formation and meet ther…
室内和现场试验表明，该体系能够提高漏层的承压能力，满足钻井、固井工程施工的要求。
应用推荐