应用概率统计的方法研究了小井眼钻井成本及其变化规律。
Statistic method is used to study drilling cost and its regularity changing.
高钻柱扭矩和套管过度磨损是小井眼钻井中存在的严重问题。
Heavy torque and abrasion on casing are serious problems in drilling in slim hole.
通过与常规煤层气试验井对比，分析了煤层气小井眼钻井的经济效益。
Through a comparison, the economic benefit in slim-hole drilling for coalbed gas has been analyzed.
为提高整体开发效率，降低开发成本，长庆苏里格气田应用了小井眼钻井技术。
The slim hole drilling techniques have been applied to Sulige gas field, Changqing, in order to raise integral development effectiveness to reduce development cost.
井底环空压力是小井眼钻井的关键参数，通常的压力降计算方法对小井眼不适用。
Downhole annular pressure is a key parameter. Conventional pressure loss calculation method is not applicable to a slin - hole.
小井眼与常规井眼的钻井工艺有较大差异，提高小井眼钻井速度有很大的实际意义。
There are the bigger differences between slim hole drilling technology and routine borehole drilling technology. Improving of slim hole drilling speed is of an important actual significance.
小井眼与常规井眼的钻井工艺有较大差异，提高小井眼钻井速度有很大的实际意义。
There are the bigger differences between slim hole drilling technology and routine borehole drilling technology.
深井小井眼钻井取心技术作为其配套技术，已相继在国内油田应用，为勘探开发提供了可靠的岩心资料。
The coring technology in deep slim hole has been applied in China. It provided dependable core data for exploratory development.
根据高效低成本开发苏里格气田的要求，进行了欠平衡及小井眼钻井，为低成本开发苏里格气田做前期技术准备。
To economically and efficiently develop the gas field, Wells were drilled using underbalanced drilling and slim-hole drilling technology.
随着我国侧钻井和小井眼钻井需求的不断增加，连续油管作业技术在我国水平井钻井、修井及完井作业中将会发挥巨大作用。
With the increasing demand of the lateral drilling and slim hole drilling, the coiled tubing (CT) operating technique will play a great role in horizontal well drilling, well workover and completion.
应用小井眼开窗侧钻技术是降低钻井综合成本，提高原油产量的重要途径之一。
Slim hole sidetracking and window milling technology is one of the effective ways to cut down the comprehensive drilling cost and improve oil production rate.
哈得4 - 11水平井属于塔里木油田哈得作业区典型的因上部套管破损漏失造成的小井眼超长井段沉砂卡钻井。
Hade 4-11 well is a typical drill pipe sticking well of slim-hole and super long interval caused by damaged case to leak in Hade operation district of Tarim oilfield.
如何提高小井眼固井质量是困扰钻井行业多年的老问题。
How to improve the quality of slim hole cementing is a difficult problem of perplexing well drilling.
在此基础上，针对一种具体的钻井工艺完成了海洋修井机用于开窗侧钻作业的配套方案研究，为海洋小井眼开窗侧钻作业提供了一种新的途径。
On the base of that, the matching construction of the ocean workover rig for side tracking was discussed. This provided a new way for the slim hole drilling.
小井眼具有可降低钻井成本，减小勘探风险，有利于环保倍受石油界广泛重视。
The advantages of the slim hole such as reducing cost of drilling, eliminating the risk of the exploration as well as being beneficial to the environment has caught oil field's attention.
套管开窗侧钻小井眼水平井钻井技术的特殊性及复杂性给传统常规录井带来了严峻的挑战。
The particularity and complexity of sidetracking horizontal wells through the opened casing hole has brought severe challenges to conventional mud logging.
实践证明，小井眼直井钻具性能评估准则和钻柱动强度条件是正确的，有效地满足了钻井工程需要。
Practical applications show that the standard and dynamic strength conditions are correct and meet the field requirements effectively.
实践证明，小井眼直井钻具性能评估准则和钻柱动强度条件是正确的，有效地满足了钻井工程需要。
Practical applications show that the standard and dynamic strength conditions are correct and meet the field requirements effectively.
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