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- Balanced Pressure Drilling Problem in Low Permeability Gas Formation 低渗天然气层的平衡压力钻井问题
- balanced pressure drilling 欠平衡钻井
- Under balance pressure drilling technology and coalbed gas development 欠平衡钻井技术与煤层气开发
- Keywords under balance pressure drilling;engineering design;cavey-preventing drilling fluid;drill stem test; 欠平衡钻井;工程设计;防塌钻井液;中途测试;
- Distinct variations of managed pressure drilling exhibit application potential. 控制钻井压力的不同变化可解决钻井中存在的压力问题。
- near balance pressure drilling 商852井
- The gas underbalance pressure drilling test for protecting reservoir was carried out in two holes. 开展了2口保护储层的天然气欠平衡钻井试验。
- The production line include HX auto washer, GD balanced pressure filer, YGZ cap turning machine, SSJ carrying machine etc. 本生产流水线有HX型自动冲瓶机、GD型等压灌装机、YGZ型旋盖机及SSJ型输送机等系列产品组成。
- The production line include ZPC auto washer, GD balanced pressure filer, WXZ cap turning machine, SSJ carrying machine etc. 本生产流水线ZPC型自动冲瓶机、GD型等压灌装机、WXZ型旋盖机及SSJ型输送机等系列产品组成。
- In light of the geological features of reservoirs in Changqing Gas Field, the study and test of gas underbalance pressure drilling technology have been carried out in the field. 摘要针对长庆气田储层地质特征，开展了长庆气田天然气欠平衡钻井技术研究及试验。
- The production line include ZC auto washer, GD balanced pressure filer, WFG cap turing machine, SSJ carrying machine etc. 本生产流水线有ZC型自动冲瓶机、GD型等压灌装机、WFG型旋盖机及SSJ型输送机等系列产品组成。
- This paper compared several testing methods of carburized depth of high air pressure drill and evaluafed their accurately and practicality. 比较了高风压钻头渗碳层深度的不同检验方法,并对其正确性和实用性进行了探讨。
- The production line include ZC auto washer, GD balanced pressure filer, WFG cap turning machine, SSJ carrying machine etc. 本生产流水线有ZC型自动冲瓶机、GD型等压灌装机、WFG型旋盖机及SSJ型输送机等系列产品组成，主要关键部位采用不锈钢材料制成。
- Relief-pressure valve adopts balanced pressure regu-lating structure with the advantages of stable pressure,high precision,and quick reaction. 减压阀采用平衡式调压结构，具有稳压性好，精度高，反应灵敏等特点。
- Aiming at the water driven balanced pressure foam proportioning skid unit, joining together to practice the problem that meet in the engineering, to the work principle... 针对水力驱动平衡压力式泡沫混合器装置,结合在工程实践中遇到的问题,对该装置的工作原理和功能特点进行了阐述。
- XM-230/80 rotary seal head is a rotary seal unit on wellhead, specialized for negative pressure and low pressure drilling, characterized by reliable sealing effect, ease of opration and safe service. XM-230/80型钻井旋转密封头是一种专用于负压、低压钻井的井口旋转密封装置,具有密封可靠、操作简单和防爆、安全等优点。
- Formation damage can be prevented by reducing differential pressure, using aerated drilling fluid, choosing the lowest over balance pressure or reducing the interface tension of gas and water. 采用减小生产压差、应用气体或含气钻井液、合理选择最小过平衡压力或减小气水界面张力的方法,可以预防和减轻地层损害。
- Used in approach flow system.With low-frequency pulse and balanced pressure of accepts.Basis on double-drums structure, with excellent efficiency of screen, more capacity and less consumptionof electric. 用于纸机前浆料的网前筛选。出浆压力平稳,脉冲。双筛鼓结构,筛选效果高,产量高,动力消耗低。
- It should have high density so as to balance pressure and improve the displacement efficiency in the well cementation for more and more high-density drilling fluid used in complex deep wells. 由于复杂深井中高密度钻井液的使用越来越多,因此在固井中为平衡压力、提高顶替效率,要求隔离液也有相应的高密度。
- For the purpose of balancing pressure and stabilizing formation,better isolating drilling fluid and slurry,improving replacing ratio,the DG high temperature resistant spacer was developed and used. 为平衡压力,压稳地层,更好地隔离钻井液和水泥浆,提高顶替效率,设计采用DG抗高温隔离液。
