borehole

And returns to the surface in the space between the drill pipe and the wall of the borehole.

Borehole images with associated dips have also been used in the interpretation.

At the bottom of a deep well, the borehole might be 8 inches (20 centimeters) in diameter.

The depth of groundwater is referred to the existing ground elevation at the top of borehole.

Whether the in-situ leaching method is successful depends on the quality of borehole engineering to a great extent.

When the fluid stops moving it forms a thick gel that suspends the rock cuttings and keeps them from sinking to the bottom of the borehole.

The volume close to the borehole wall in which some or all of the moveable fluids have been displaced by mud filtrate.

The result of calculation indicated that the pore fluid property would bring great effect on the borehole stresses distribution.

A few thousand dollars spent on a borehole, a lifeline to the precious water deep underground, would transform those farmers' lives.

Further optimization of the borehole quality using new generation drilling assemblies is now possible.

Precise control of borehole and annular pressure in HTHP wells is one of the important development directions of petroleum technology.

Raw borehole data have to be deciphered to carry out auto-modeling from boreholes.

Seeing the borehole wall as the boundary, the heat transfer area of U-tube will be classified into inside part and outside part.

thus , the study of the acoustic field of the layer and fractures in and outside of a borehole is the theoretical base for sonic logs.

Others have articulated joints attaching them to the logging tool, with a backup arm to press the pad against the borehole wall.

The borehole trajectory design to be drilled well with defined direction needs to solve a set of 7-element nonlinear equations.

Lost time due to wellbore instability and tools lost in a borehole leads to higher drilling expenditures and delayed production.

Once the probe has been hauled up, a coring device will be lowered down the borehole to take samples of the lake floor sediment.

Different methods for the determination of initial rock stresses and the principle of its test borehole layout are also presented.

The mathematical relationship between X-ray activity and borehole parameters was inferred on an ideal borehole water model.

The mechanical behaviour of rock mass around an arbitrary inclined borehole and its coupling with multiphase flow were investigated.

phase response controlled by aquifer hydraulic parameters, as well as the borehole radius and the tidal signal frequency.

Elastic modulus of fractures, the distance of fractures from the borehole, edge stress and compound fractures are the sensitive factors.

Riser Pipe: A four-foot-diameter steel pipe called a riser connects the ship to the borehole.

Test shows that the blasting effect of cylinder cut of ms blasting in borehole is better than that of cylinder cut.

The authors introduce a new generation RZB borehole strainmeter and its application in crustal stress observation.

This signal is not handled by the normal borehole correction and may result in a spike on the log.

A distance that characterizes how far a logging tool measures into the formation from the face of the tool or the borehole wall.

The material used to permanently seal annular spaces between casing and borehole walls.

In accordance with the theory of fluid mechanics, the borehole stress distribution was deducted as pore fluid was Bingham fluid.

The pad holds sensors that are focused in one direction and must be as close as possible to the borehole wall.

A dead leaf, gone with the wind in the borehole, Dangqi ripples.

Case studies include a static axial bore pile test, borehole inclinometer measurements, and uniaxial compression tests at laboratory scale.

Researched geology data, I found the borehole enlargement rate is large when some complicated agential is contained in formation.

The borehole influences this difference if the tool is tilted or if there is a cave opposite one of the receivers.

Borehole seismic data, including both S- and P-waves, can be gathered in a cased or open hole.

Drilling technology parameter and rational combination of drilling tools is a key for controlling the borehole track controlling.

Blowout Preventer: This five-story machine sits on top of the borehole and monitors the intricate balance of pressure within.

Rescuers plan to send plastic tubes containing food, water, cameras and communications equipment down a narrow borehole already drilled.

An unfocused electrode device with small spacings, mounted on a pad and pressed against the borehole wall.

The technology of borehole order blasting has been widely applied in bench blasting in a number of national open-pit.

The characteristic and mechanical properties of pretensioned cable with small borehole anchored by resin and grout are summarized.

the calculating formula of filling grouting borehole interval of strip grouting and setting principle of grouting borehole are given.

Then by selecting appropriate strength criteria, the borehole stability analysis model for gas drilling can be set up.

In smooth boreholes of constant diameter, the effect of the borehole is well understood and can be corrected for.

Proposed is a new design of three-parameter combination logging tool for cable head tension, borehole temperature and mud resistivity.

These stress perturbations are being reliably mapped using MEM techniques and the consequences to borehole stability addressed.

The program can be use to effectively process measured data of borehole and output trail of borehole.

Coexisting dawn like love in the American borehole are cultural values of self-reliance or independence.

Formate solid free drilling fluid is aimed at solving low porosity, low permeability and borehole instability in Jilin oilfield.

Finally, the present problems of the borehole penetrating method are analyzed; and the improvement proposals are put forward.

drilling pattern should be "high drilling speed, good quality of borehole, and low drilling cost" .

The borehole penetrating method can rapidly and accurately test the uniaxial compressive strength(UCS) of coal and rock mass.

Flow simulation model can be determined using geostatistical inversion of seismic and borehole data.

Hodograms are used in borehole seismology to determine arrival directions of waves and to detect shear-wave splitting.

Borehole radar measurement provides the useful information of geological features of extension in the rock mass.

borehole water injection to check grouting results and coring to check grouting quality were made after the grouting operation.

The features and proportions of slurry and effect of borehole wall protection in different loose strata were mainly introduced.

Developed study on the numerical bit , well bottom and the borehole face modeling method for PDC bit numerical experiment system.

The built-up analytical model provides sound foundation for designs of borehole stability and casing safety in this area.

His landlord runs a power line into the slum for electricity and draws water from a borehole on the property.

The housing isolates the electronics, power supplies and sensors from the borehole and bears the pressure burden.

The density of a drilling fluid is a key parameter to keep the borehole stable.

Synthetic Mud: A viscous cocktail of minerals, polymers and seawater stabilizes the borehole walls.

The peak pressure attenuation of shock in water in borehole axis direction was slower than the direction vertical to the borehole axis.

Borehole compensation is different from borehole correction.

Pseudo-Rayleigh wave induces the seismoelectric conversion and radiates the converted electromagnetic wave in the borehole.

Borehole orifice-pipe can be installed using pre-bury or later-bury method.

Point bars modeled in a North Texas gas field on the basis of borehole and seismic images.

Sand pile drilling test adopted mod counterfort to prevent burying the drilling tool by the borehole from collapsing.

The solution for design model of soft landing in borehole trajectory can come down to the solution with 7-element nonlinear equations.

And the drilling operations in Xinzhan area have been influenced by unstable borehole walls, and economic loss is heavy.

This keeps the borehole dry and prevents the hole from freezing over the drill.

Borehole resistivity images are generated by sensors built into the drill bit.

The inside part and outside part are combined with the temperature of borehole wall directly.

Preferable effect was realized by using lesser dosage. Problem of Visbreaking in borehole and surface delivery was resolved.

Then, the design of the detection system in borehole of the mined-out area based on ultrasonic distance measurement was introduced.

The application outlook of joint inversion of borehole and surface seismic data is forecast.

Borehole magnetic technique has been widely used in geology and CCSD.

equivalent to a broadband seismograph in a borehole of 2500 m deep.

orientation is very important for a seismometer , whether it is installed on surface or in borehole.

Ground thermal conductivity is the key parameter in the design of borehole heat exchangers.

Increased core rate and to maintain borehole stability obtained is crucial to fully evaluate the oil shale.

Centralizers on the casing stabilize it within the borehole and prevent wear on the couplings.

That part of a wireline logging tool that is pressed firmly against the borehole wall.

Surface - borehole IP in mine detection Blind Ore beside the borehole has its unique role.

A device that helps to maintain the logging tool in the center of the borehole.

A continuous 360-degree annular space around casing allows cement to completely seal the casing to the borehole wall.

An example of principal stress rotation gleaned from a deepwater MEM and the consequences to borehole stability is summarized in this paper.

The borehole falling and hydraulic fracture during drilling have a close relation with the distribution of stress field.

The borehole falling and hydraulic fracture during drilling have a close relation with the distribution of stress field.

the pressure drop in the borehole has significant effect on the initial production rate.

In borehole blasting, the technological parameters such as hole pattern parametersand priming method must be reasonably determined.

In borehole sonic logging, these may be the shear, flexural and Stoneley waves.

Some effects caused by the environment factors and the borehole conditions have also been discussed in this paper.

A complete technology of measurement of All--Direction Borehole inclinometer has been formed.

With increasing borehole data and further investigation, our understanding of the member 4 of the Shahejie Formation has been improved.

Because the multiplicity on Magnetic Method Inversion, this method apply to resource's estimation before validation of borehole.

A borehole image of rock layers indicating an underground point bar.

In the oil field, borehole recordings allow direct correlation to GPTS and well-to-well correlations.

Based on the deterministic data of borehole, the variation feature of coal thickness in spatial space was studied.

A new geostress measurement method, called local borehole-wall complete stress relief method(LBWCSRM), is proposed in this paper.

In modern logging several different kinds of measurements are taken simultaneously in a borehole.

The quality of borehole directly influences the effect of blasting.

Shear failure is a basic failure mode of borehole rock.

More CO2 content, slow drop on borehole temperature and fast drop on the pressure.

And the use of borehole imaging tools in the characterization of reservoirs.

With the yearly increase of the depth of open-pit mining, the water infiltration of borehole can not be ignored.

Microfossil analysis reveals three transgression layers in the CQJ4 borehole, which are at 4.

In order to solve these technical problems, horizontal borehole technology by hydraulic jetting was applied in Changqing oil-field in 2007.

To avoid the heavy loss of drilling operation caused by borehole fire, the anti-backfire valve for gas drilling was developed.

Derricks would rise as much as 180 feet above the borehole.

Tracer communicating test by borehole identifies there are two seepage passageways existed in the rock and they are developing further.

The priority is on keeping the exposed rock formation in the borehole stable while avoiding the loss of drilling fluid.

coalbed gas Discharge is very important for mining safely, borehole and laneway play a leading role of coalbed gas discharging in China.

There are rock core samples from 1, 200 boreholes, plus time-lapse seismic analysis and borehole logging.

We can make use of two-dimensional spectrum directly to vividly show the characteristics of the acoustic wave propagation in a borehole.

I hope the New Year be to bring you or yee borehole eextremeccly joy, peace or continued success.

So air drilling will not be carried out fast if the borehole can not be cleaned effectively.

Salt rock can make borehole close in the effect of creep, which often leads to stuck.

At least two years of experience in borehole logging or related work;

The method uses 3D layer media model, to study the relation between depths in borehole and reflection interval nearby.

Theoretical study on the least "Quiet" distance between a borehole tilt observatory site and surficial mechanical disturbance sources

A comparative study of digital recording of seismic water-level fluctuations in Zhouzhi deep borehole with seismographic recordings

Numerical simulation of acoustic reflected wave logging with excessively long source distance and imaging of interface far from the borehole

Experimental study on deformation field evolution during failure procedure of a rock borehole structure

Experimental simulation of the buckling equation of a pipe string in horizontal borehole

The long helix pole borehole pours a pole and the manpower exploits hole pole comparison and their application

Design of the Experimental Bench which Measures Jetting Force of Squirt Gun Used in Borehole Hydraulic Mining

Up-to-date development of techniques and instrument of borehole seismic exploration

Inverse Methods and Application of Anisotropy Parameter of Media Around the Borehole

Experimental study of bearing capacity of bridge borehole injection pile in mudstone foundation

Verification of the Orientation Accuracy of Mathematical Models for Borehole Courses in Geological Exploration Drilling

Application of the Compressed-air Drilling to the Borehole -drilling Construction of Conventional Drilling Machines

Anti-seepage treatment of dumped riprap levee foundation by borehole grouting in harnessing the main stream of the Haihe River

Technique of sectional relayed detonating in inside and outside of borehole for control of blasting vibration in urban area and its use

Application of the borehole-to surface electric potential image technique to monitoring hydraulic fractures of coalbed methane

Prediction of Vertical Fracture Widths near Borehole Face of the Wall

Borehole strain measurement in the Capital Circle Area and its anomalous changes shortly before earthquakes

New technology of pneumatic cutting removing for borehole drilling applied to seam with outburst potential in Qinan Mine

Simulation of multifrequency borehole resistivity measurements through metal casing using a goal-oriented hp finite-element method

the stability of a borehole in an elastic - plastic medium

Simulation and inversion of borehole temperature profiles in surrogate climates: Spatial distribution and surface coupling

Gray Correlation Investigation between Cutting Experiment Parameters and Borehole Stability

Standard Guide for Conducting Borehole Geophysical Logging-Electromagnetic Induction

Resonance Analysis of a Circular Dipole Array Antenna in Cylindrically Layered Media for Directional Borehole Radar

The application of The digital panoramic borehole camera in geological investigation of the subterranean tunnel

Numerical calculation of borehole electrical survey in layered media and its applications

Mathematical Model of Determining Borehole Circulating Temperatures in Cementing and Drilling Processes

Study and Application of the Laser Intersection Instrument for Underground Borehole Demarcation

Setting up mathematical model of following and controlling borehole track of the guide drilling under special condition

The Predictive Analysis of the Borehole Diameter Expanding During the Drilling Process

Test Method for Determining Subsurface Liquid Levels in a Borehole or Monitoring Well (Observation Well)

Effects of element number of linear phased array acoustic transmitter on waves of various modes in fluid-filled borehole

The application of deep borehole blasting technology for pressure releasing in dynamic pressure releasing in dynamic pressure roadway

Construction of clutching borehole grouting pile and its induced ground settlement

Numerical Study on Acoustic Field on Borehole Generated by Eccentric Sonic Source Near the Borehole

Technologies of Preventing Environment Pollution During Borehole Operation

Design and practical application of deep straight borehole blasting to mine rock roadway constructed with full hydraulic drilling jumbo

Shallow borehole smooth blasting technology applied to construction of mine clay and rock roadway

Research and application of seam thickness prediction method with borehole restrained frequency area quantified

Application of Artificial Fracture Real Time Monitoring Technology with Borehole Seismic Receiver in Low Permeability Gas Well

Experimental Study on Acoustic Parameters of the Polymer Solution in a Borehole

boundary conditions at drill bit , stabilizer , bend angle , diameter change , tangential point and borehole wall ;

Research on borehole pressure drop calculation for stratified flow in water produced horizontal gas well with barefoot completion

A Model for Calculating the Borehole Pressure Drop for Variable Perforation Density and Segmental Perforation in Horizontal Wells

A new method to test stress of anchorage segments of single borehole multiple anchor cables and its application

Acoustic head wave on the borehole wall in a porous formation and the causes for its accompanying electromagnetic field

High-accuracy Processing Technique for Borehole Correction of an Array Induction Tool

Processing of Key Technical Challenges for Construction of Borehole Pile in Deep Water and Uncovered Rock

Acoustic wave propagation in a borehole penetrating an inclined layered formation

Early diagnosis for the stress concentration zone of borehole casing pipe by metal magnetic memory and wavelet transform

Architecture Design and Key Technique Research of the Graphic Management System of Geological Borehole Information

Orientation determination of high permeability zone with borehole-to-surface potentiometric method

The Technology of Hydraulic Borehole for Underground Mining and Its Application

Borehole Wall Stabilization Technology Research and Application in Branching Well Completion

Sedimentary Structures Identified from High-resolution Borehole Micro-resistivity Image Logs

Application of mine - earth potential method to crack monitoring of pressurized cracking operation for coal bed methane borehole

Applications of the borehole geochemical prospecting to the recognition of source rocks

Borehole Unstability Theory of Shale and Its Research Progress

Integrating borehole information and surface seismic for velocity anisotropy analysis and depth imaging

Calculation of borehole stress with full-wave acoustic logging data and its application

Construction Quantity Problems and Prevention Measures of Borehole Impregnator

Standard Guide for Conducting Borehole Geophysical Logging: Mechanical Caliper

Analyses on steady-state temperature distribution around an inclined borehole in geothermal heat exchangers

Evaluation model of borehole chemical stability and its application

Optimization on roof strike borehole parameters of gently inclined and high cutting fully mechanized longwall mining face

Design and Implementation of Borehole Blasting for Siphon Installation Engineering in Waterworks

Characteristics of Borehole Distribution and Its Effect to Methane Content in Coal Bed

specification for three - component borehole magnetometer

Simulations of reflection seismic profile of borehole area of Chinese Continental Scientific Drilling

Quality control for curtain grouting construction of the borehole section with large leakage

Simulation of influence of source distances on neutron-gamma ray spectra for oil sandstone formation and water flooding in borehole

Research and practice in deep borehole comprehensive observation of earthquake precursors

Quantitative evaluation method for thermal stress around borehole during thermal recovery

Construction Technique of Excavation Retaining Structure for Interlocking Borehole Cast-in-situ Pile

On the precautions of borehole cast-in place concrete pile used in bridge construction

Experimental result and theoretic analysis concerning the borehole strain responding to the load on earth's surface

Predicting Borehole Stability before Drilling Using Seismic Attributes

Deviation Measurement Technique in Large Diameter Ventilation Borehole

Influence of Temperature Perturbation on Borehole Wall Stabilization and Oil Field Development

application and research of the high accuracy and all - directions borehole inclinometer

Application of digital borehole camera to quality test boreholes for grout curtain in Xiaolangdi Water Control Project

Directional drilling technology for large borehole in shallow strata with small well space in Shengli shallow sea oilfield

The Effectivity of Applying Linear Phased Array Transmitter in Borehole Acoustic Reflection Logging

Application of Surface-Borehole Electrical Approach to Reservoir Evaluation in Loess Tableland Area

Calculation on change in borehole pressure of gas condensate well at the condition of phase change

Construction Quality Problems and Prevention Measures for Bridge Borehole Grouting Piles

Mechanics effect analysis and parameters study on borehole directional fracture blasting

Technique of Foundation Treatment with Borehole Tamped-Expanded-Extruded Composite Stake

Processing and Interpretation of Short Spacing Sonic Data from Continental Science Drilling Pre-borehole

Quality control of freezing borehole drilling in complicated geological conditions

Borehole Geochemical Exploration Anomalies Related to Petroleum Geological Conditions

Correlation Study on Borehole Deformation Modulus and Wave Velocity of Certain Hydropower Plant's Foundation Rock

Finite-difference modeling of the acoustic field in the borehole in cylindrical coordinates

Study on the influence of the diameter of pre-driven borehole on soil-displacement effect of partly soil-displaced piles

Calibrating fracture width using Circumferential Borehole Image Logging data from model wells

Reactions of great-diameter borehole clump-of-piles under a transverse loading

Construction Technology for Grouting Pile with Hand Excavated Borehole and Reaming Borehole Bottom

The borehole instability mechanism and countermeasure to Permian Liangshan formation in east of Sichuan

Experimental research on borehole stemming technique adopted in tunnel blasting driving

Measures of Deflection Prevention and Deflection Control for Freezing Borehole Drilling

Construction technique of deep-borehole smooth blasting used in rock cut

Borehole in situ calibration of stress sensors and calculation of variation of stress field during long term observation

Application of Cross-borehole Seismic Tomography during CBM Fracturing Monitoring

Lithological Statistics of the Borehole Data and Computer Print of Geological Column

The converted electromagnetic wave characteristics of seismoelectric conversion effect in borehole

The numerical simulation and analysis on the head waves modes and full waveform in borehole

Analysis of Disturbance Mechanism and Abnormity of Digital Observation Data of Borehole Body Strain Meters

Optimize borehole explosive parameters in reason and enhance economic efficiency

Analyses of Several Problems Concerning Borehole Filling Pile Construction

Introducing the characteristic of pretensioned cable with small borehole anchored by resin and grout;

Borehole Water Block up Grouting Technique Used in a Songlou Coalmine Slant

The Function Control of the Borehole Impregnator and Reinforce Processing of Break Post

Forward Modeling of Induction Tools in Dipping Borehole and Its Response

Test and research on deep borehole blasting technology for pressure releasing to improve seam gateway support

Application of Wavelet Decomposition to Remove Barometric and Tidal Response in Borehole Water Level

Coal bunker construction technology with small pilot borehole and suspended hanging method

Study on construction factors influencing engineering properties of borehole cast-in-place pile

Construction method of directional drilling for ultra long horizontal freezing borehole in metro tunnel

Effect of drilling fluid system and its viscosity on gas measuring borehole logging

Post pressure grouting of borehole cast-in-situ pile bottom and its quality control

Application of High-accuracy Directional-drilling Technique in Tunnel-cable Borehole

Experimental research on the directional hole-forming and delivering explosion in long-borehole of top-coal

Practice of Extinguishing Spontaneous Fire Using Filling Water Way through Short Borehole

Management system of the digitalized borehole stress-strain monitoring network

Principle of Double-pipe Protecting Borehole Wall Blasting and Sonic Wave Evaluation of Blasting Effect

Application of borehole cast-in-situ pile in foundation construction in Shanghai Greenland Century City

Measurement precision analysis of the borehole diameter

Through Annular Space Continuous Full Borehole Production Profile Logging Tool