水平定向钻机孔底钻具的研究与应用--中英文翻译

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Horizontal Directional Drill Hole Drill end of the study and

application

of a drill hole end of a composition and function.

Construction of drill hole orientation : drill pipe, a launcher tube and a guide to

accommodate bit.

Construction of drill hole orientation with drilling, to change, through magnetic

and drilling fluid delivery functions. Coordinated by computer control, in strict

accordance with the design of the track has been completed oriented hole. Drilling is

drilling high pressure liquid jet cutting board and bit accomplished; Bits board and the

installation of boards of drilling teeth. Rotary drilling bit at the time supporting

Cutting role in promoting the drill pipe at changes to the role; transmitters placed to

accommodate tube launcher, to accommodate the opening of a Magnetic planters,

Non-metallic materials and sealed to prevent the entry of high pressure drilling fluid,

launch vehicles by the electromagnetic field Magnetic tank fired. Internal drill pipe

and drill should provide sufficient access to meet the drilling fluid flow needs.

2, the construction of bore hole : drill pipe, the first to expand, the rotary joint

drill pipe and back to Rafah. When the guide hole drilling is completed, unloaded

oriented bit, to accommodate tube launchers and connect with reverse bore bit and

rotary joint, Then after the rotary joint drill pipe connected to Rafah, to Reamer

drilling. The large diameter holes, a number of bore drilling, hole diameter gradually

expanded to the size requirement.

3, back to Rafah Pipeline Construction hole : drill pipe to Rafah, to expand first,

rotating joints and pipe-drawing tools. When the bore drilling is completed, the drill

pipe to Rafah after expanding access to the first and rotary joint, After the rotary

connector connected pipe-drawing tools and the laying of pipelines to be anti-

expansion Pipeline.

2, the main drill a research and application, the drill pipe drilling pipe

construction quality is the key to success. Construction of the pipe and caused damage

to the drill pipe connecting the end of drill hole of the lost, whether to expand or

expensive first mud motors, and pipelines. As the drill pipe construction of HDD

technology to the success of a basic role, in recent years, drill pipe manufacturers

have continued to adopt advanced technology to improve the structure of the pipe to

improve its performance and quality. Currently, the main HDD drill pipe into the

overall style and welded two structural forms. Friction welding type of drill pipe

drilling pipe achieve the best combination of structure, which means that in order to

meet different needs. Performance of different materials can be used in different parts

of the pipe. Friction welding drill pipe with high mechanical properties, wear

resistance, light weight, good flexibility, a convenient way to different forms of

threaded joints with different specifications of the pipe welding portfolio. Mount

Sassafras drill pipe-welding technology is the key to the quality of welding, welding

and heat treatment process control properly, Friction welding connection strength

should reach even higher than the base material itself intensity. To ensure the quality

of welding. foreign manufacturers for the manufacture of drill pipe friction welding

equipment has been used advanced computer control and data recording technology.

Through the monitoring system to ensure that every root of all drill pipe welding

parameters in accordance with prior to the numerical implementation. In other words,

a group of drill pipe in any one drill pipe, are strictly controlled in the context of

tolerance, by the computer monitoring system to ensure that the welding performance

consistency. And drill pipe through a single test, a number of drill pipe to provide

each of the roots of the pipe complete, reliable performance data. After welding

overall electromagnetic induction heat treatment, the whole process is an important

stage. In recent years, considerable research through research and testing, now be able

to make a welded seam mechanical properties to meet or surpass the performance of

the base material itself, including durability, welding safety aspects. In order to

improve the surface hardness thread, thread itself to prevent any possible occlusion,

the post-processing on the surface of the nipple. Thread particular part should be

carried out nitriding treatment. Drill pipe used in the manufacture of steel pipes used

high-grade seamless steel tubes, and after quenching and tempering. Friction welding

drill pipe Another advantage is being able to drill pipe internal drilling fluid channel

design. Within which the nipple holes in the design of the Corridor full consideration

to minimize the liquid through the hydraulic losses Special connecting thread is the

first reduction of the loss, will greatly enhance the drilling fluid system efficiency.

Threaded joints in the design using the top of the basket, the landscape of conical

threaded design that can connect to increase strength, can in no additional washers

with the help of the enclosed play a very good role. Practice shows that the use of

more powerful drill holes and underground drilling equipment, maximum hole

diameter and the smallest curvature radius, on the special needs of high-quality design

of the drill pipe to meet the construction requirements.

2, guided boring BHA

(1) Universal : Universal Detection device for capacity, Variable bit to the plate-

and cutting tools. It is normally used in soft soil and backfill soil construction,

replacement of hard-bit teeth, hard formation for the construction, including the hard

soil, rock, gravel and soft rock.

(2) Rigid-formation comprising : Definitive detection devices installed capacity,

belt-injection tube bending and (a) separate from the spray head, apply to soft soil

controllable jet construction; (b) rock drill, as applied to drilling mixed layer, In hard

rock section allows rotary drilling bits.

(3) soft-rock composition : Definitive detection devices installed capacity,

hammer, Hammerhead applicable to the hard ground and soft rock drilling high

penetration and to

(4) Rock : Definitive detection devices to accommodate devices, change the

connector, mud motors, bits of rock to rock Drilling 3, used to expand drilling hole

(1) with long shafts to extend the first features : 30 degrees cone shape,

conducive to efficient cutting and squeezing soil; access to a variety of back end and

threaded connection forms; forward and backward drilling fluid spray nozzle of the

can for TC-rock teeth; Groove can be used to efficiently remove cuttings; Dimensions

8 "(200mm) a 20" (500mm) applicable to the general condition of the project, in the

density of clay, gravel and mud-rock clay soil (gravel, cobble, etc.) construction, both

warm-cutting with a knife and squeezed Cone for the composite function with high

efficiency of the construction. Installation TC rock cutting teeth, can improve cutting.

Generally applied to medium hardness of the soil, and are particularly suited to the

hard rock and soil layer construction.

(2) mid-knife to expand on features : open drilling body 30 degrees conical

cutting arm, In comparison with the extrusion is excellent BTA and mixed role. Is a

unique way to expand is omnipotent, in the sand, soft soil, clay and concrete

compound layer construction with excellent performance, to be effective so that the

soil mixed with the mud flow into the mixture has the ideal BTA and powerful

mixing. Dimensions 8 "(200mm) a 20" (500mm).

(3) spin-barrel-back expansion device features : suitable for medium and large

drilling rig; open drilling body, three-arm design. with high efficiency and the cutting

ability of BTA. Replacement rock cutting teeth can be replaced by the forward and

backward nozzle, the standard size of 12 "(300mm). Welding with industry standard

API 5C6. generally used, broken clay soil superior extrusion type, This trace was

excellent cutting properties and BTA, often with a barrel-to expand the use of devices

together.

(4) barrel-type device to expand features : suitable for medium and large rigs. 30

degrees around the cone; Replacement rock cutting teeth; both before and after the

end can be replaced with the nozzle; standard size 12 "(300mm). Barrel - type device

to expand in clay, gravel soil, aggregates and construction with the rock cutting and

excellent extrusion properties, used mainly for extrusion soil (soft clay, peat), in soil

squeezed out holes and maintain.

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摘要：

HorizontalDirectionalDrillHoleDrillendofthestudyandapplicationofadrillholeendofacompositionandfunction.Constructionofdrillholeorientation:drillpipe,alaunchertubeandaguidetoaccommodatebit.Constructionofdrillholeorientationwithdrilling,tochange,throughmagneticanddrillingfluiddeliveryfunctions.Coordina...

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水平定向钻机孔底钻具的研究与应用--中英文翻译

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