井

Constructors will dig several wells in the Chile Pavilion to reflect on water surface realtimeimages of Chilian people's life through state-of-the-art technologies,Hernan Somerville, commissioner general for Chile's Expo exhibition,said during an inspection to the preparation of the Chile Pavilion.

"假设在中国打一眼无限深的井，穿越地心，井的那一头可能就是智利。"在中国2010年上海世界博览会园区工地，专程前来考察智利馆开工准备工作的智利政府总代表埃尔南·索莫维尔对新华社记者意味深长地说。

The circlip lead seal packer with sand control is developed for ensuring the normal production of big borehole sand control well.

为保证大井眼防砂井正常生产，研制了卡簧式铅封防砂封隔器。

The tenants have reflected this situation to the heating sector, staff Safety valves emergency examination revealed that 4 shortlisted cell thermal wells for heating pipe valve was closed, the switch handle is cut the same time, the well of the heating return pipe valve doors were also damaged, apparently caused by man-made.

住户们将这一情况反映给供暖部门，工作人员紧急检查发现，小区热力井里这4栋楼的暖气管道阀门被人关上后，开关手柄被砸断，同时井内的暖气回水管道阀门也遭到破坏，明显是人为所致。

So how to make it durable and economical is our purpose - optimization of casing size and coadjutor layout.

固井是油井建井过程中的一个重要环节，而套管设计又是其中的一个关键问题，如何让其满足强度要求而又尽可能的经济，即追求套管尺寸和扶正器布局的最优化是我们最追求的目标。

The fixation of oil-well establishment is an important thing , and the design of casing is also crucial . So how to make it durable and economical is our purpose - optimization of casing size and coadjutor layout .

固井是油井建井过程中的一个重要环节，而套管设计又是其中的一个关键问题，如何让其满足强度要求而又尽可能的经济，即追求套管尺寸和扶正器布局的最优化是我们最追求的目标。

The fixation of oil-well establishment is an important thing, and the design of casing is also crucial. So how to make it durable and economical is our purpose- optimization of casing size and coadjutor layout.This article introduces the optimization of what have mentioned above.

固井是油井建井过程中的一个重要环节，而套管设计又是其中的一个关键问题，如何让其满足强度要求而又尽可能的经济，即追求套管尺寸和扶正器布局的最优化是我们最追求的目标。

And the optimize of underbalance drilling fluid is gone on in view of stratum and reservoir geologic characteristic in DaQing oil field, finally a suit of reverse emulsion drilling fluid system fitting DaQing oil field underbalance drilling is established, and it is successfully used and verified in erbalance drilling construction work, the effect is very ideal. Additional the well control technique and commensurable auxiliary technique of underbalance drilling are also systematically analysed, a suit of auxiliary technique and well control scheme of underbalance drilling fitting DaQing oil field zone of negative pressure is established.

本文重点对欠平衡钻井负压值的影响因素及确定方法进行了研究；并针对大庆油田地层及油藏地质特征进行了欠平衡钻井钻井液体系的优选，最终确定了一套适合大庆油田欠平衡钻井的水包油钻井液体系，并成功地在欠平衡钻井施工中得到应用和验证，效果十分理想；另外，本文对欠平衡钻井的井控技术及相应的配套技术也作了系统的分析，确立了一套适合大庆油田地层特点的欠平衡钻井工艺技术配套措施及适合大庆油田地层负压特点的钻井井控技术方案。

Appling gas chromatography method to determine single layer's output and water cut of commingle producing well enriches commingle production technology. This application not only can be used to determine single layer's output, but also water cut. This technology must play important role to develop Putaohua and Fuyu reservoir effectively.

气相色谱技术用来确定合采井分层产量、含水的应用技术丰富了葡扶合采技术，其应用不仅可以确定合采井分层产量，而且可以定性确定两套油层的含水，对研究两套油层的动用状况必将发挥重要作用。

After the research, determined that uses forms the corbel well circle structure first in the damping well base concrete, then uses the hydraulic pressure slip form in the well circle to construct the formation continuously the plan.

经研究，确定采用先在阻尼井底部浇筑混凝土形成牛腿井圈结构，然后在井圈上使用液压滑模连续浇筑成型的方案。

But recent cross hole seismic exploration has fallen a pitfall,that is,most of the rays in cross hole seismic exploration is in the region beyond critical angle.

然而，目前的井间地震勘探陷进了一个误区，即井间地震勘探的大部分射线都落在临界角以外的区域。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。