drilling相关论文
A near-infrared femtosecond laser is focused by a 100 mm-focal-length plano-convex lens to form a laser filament,which i......
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Recoverable Autonomous Sonde for Environmental Exploration of Antarctic Subglacial Lakes:General Con
Subglacial lakes beneath the Antarctic ice sheet have a great effect on movement and stability of ice sheet.Sealed from ......
Friction problem is the most outstanding problem recently in the well drilling operation of all kinds of complicated str......
Azimuth gamma logging while drilling(LWD)is one of the important technologies of geosteering but the information of real......
Deformation Analysis and Fixture Design of Thin-walled Cylinder in Drilling Process Based on TRIZ Th
Thin-walled cylindrical workpiece is easy to deform during machining and clamping processes due to the insufficient rigi......
Combined with the current research status in this area at home and abroad, with the improvement of salt and high tempera......
A Petrophysical Approach to Evaluation from Measured While Drilling Gamma Ray, Case Study in the Pow
One of the most common subsurface data sets that is easily accessible and often underutilized is the acquired measuring ......
Mechanism of shales stabilization by hydrophobized poly(ethylene glycol)/K^(+) in water-base drillin
The mechanism of the hydrophobized poly(ethylene glycol)(PEG)/K+ system inhibiting shale hydration was studied by labora......
20世纪初期,在美国南部的德克萨斯州,一支地质勘探队正在用钻探机(drilling machine)往地下钻孔寻找石油。当钻到一定深度时,突然......
Most problems faced by practicing of the wellbore stability analysis involve evaluation of rock mechanical properties es......
In recent years,air-foam combining the advantages of both liquid and air drilling has been utilized as a drilling medium......
Stability and nonlinear dynamic behavior of drilling shaft system in copper stave deep hole drilling
The stability and nonlinear dynamic behavior of drilling shaft system in copper stave deep hole drilling were analyzed. ......
The process of DTH(down-the-hole) hammer drilling has been characterized as a very complex phenomenon due to its high no......
FUSULINID-BEARING FORMATIONS AND FUSULINID FAUNA FROM DADUN COALFIELD OF PEIXIAN,NORTHERN JIANGSU PR
<正> In the Dadun coalfield of the Peixian distrier, Jiangsu Province, the coal-bearing strata are covered by the Quater......
To better understand the physical processes of multi-pulse laser drilling,this study investigates the keyhole evolution ......
Drilling fluid additives has a major impact on rheology behavior and other performances of the drilling fluid.The key to......
In order to improve the quality of laneways and tunnel excavation by drilling and blasting and by making effective use o......
Shell is set to restart its controversial hunt for Arctic oil,three years after the company’s last ill-fated venture no......
Influence of Na~+,K~+,Mg~(2+),Ca~(2+),and Fe~(3+) on filterability and settleability of drilling slu
Solid–liquid separation is a vital step in drilling sludge disposal, and the filterability and settleability of drillin......
Deepwater oilfields will become main sources of the world’s oil and gas production.It is characterized with high techno......
An oil-based drilling fluid should be stable and tolerant to high temperatures for use in deep drilling. An invert emuls......
Ultra-deep formations hold abundant oil and gas resources.As the demand for oil and gas increases with economic developm......
Ultra-deep formations in China contain rich hydrocarbon resources.In recent years,the number of ultradeep wells has been......
专利号:US2014000358(A1)专利名称:PORE PRESSURE MEASUREMENT IN LOW-PERMEABILITY AND IMPERMEABLE MATERIALS申请号:US20121353......
【正】 China National Offshore Oil Corporation (CNOOC) hassigned a production sharing contract (PSC) with BG Internation......
We perform synthesis, characterization, and application of nanostructured diamond composites. The enhancements of the th......
This paper examines the feasibility in air drilling of transmitting down-hole signals by using microwaves. Firstly the b......
Intermediate casings in the build sections are subject to severe wear in extended-reach drilling. This paper presents a ......
Gas-hydrate formation,agglomeration and inhibition in oil-based drilling fluids for deep-water drill
One of the main challenges in deep-water drilling is gas-hydrate plugs,which make the drilling unsafe.Some oil-based dri......
In recent years, rapid progress in the use of high pressure water jets (HPWJ) has been made in oil and gas well drilling......
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Drillpipe failure is an outstanding issue in drilling engineering, often involving great financial losses. In view of th......
A stuck drill string results in a major non-productive cost in extended reach drilling engineering.The first step is to ......
This paper focuses on the independent design and construction of HYSY981. HYSY981,which China National Offshore Oil Corp......
With the rapid development of deepwater drilling operations,more and more complex technical challenges have to be faced ......
Comparison and application of different empirical correlations for estimating the hydrate safety mar
As the oil and gas industries continue to increase their activity in deep water, gas hydrate hazards will become more se......
CNOOC Energy Technology & Service-Oil Production Services Co., (OPSC herein-after) which is one of the 11 specialized su......
Zhongyuan Petroleum Exploration Bureau(ZPEB)is the second largest subordinate oil and gas field of SINOPEC which was fou......
Oil equipment industry is directly concerned with the development of oil and gas resources development and the national ......
The construction of technical standard system for ultra deep and high sour gas fields in Northeast S
To deal with the exploitation difficulties of gas fields in Northeast Sichuan with deep marine strata, after researching......
Modeling the pressure characteristics of parallel chokes used in managed pressure drilling and relat
Based on the local resistance computation model for a choke valve and using the flow characteristics of choke valves, we......
High temperature and high pressure rheological properties of high-density water-based drilling fluid
To maintain tight control over rheological properties of high-density water-based drilling fluids, it is essential to un......
Results of the global shale gas resources show that minable resources of global shale gas are 187 trillion cubic meters(......
The phase transition, from asubcriticalstate to a gaseousstate, of the natural gas with high H_2S content and thesolubil......
Rock mechanical problems and optimization for the long and deep diversion tunnels at Jinping Ⅱ hydro
According to site-specific environments such as high water pressures,high in-situ stresses and strong rockbursts,the des......
This paper presents the design of an experimental setup and mathematical and physical models to determine the dynamical ......
In an effort to develop methods of solving the issue of cuttings bed in horizontal wells, a 3-D transient model is estab......
