Tricone rock bit steel tooth metal sealed 12 1/4HJT127G

Product Details

Tricone rock bit 12 1/4 HJT127G metal sealed bearing bit

datas of this bit:

Szies/diameter: 12 1/4 inch , 311mm

IADC code: 127

pin shank: 6 5/8 inch REG

Product standard: SY/T5164

Available in various sizes, customized tri-cone bits, 3 7/8", 4 1/2", 5", 6"cone bit, 7 1/2", 8 1/2"tri-cone bit, 9 1/2", 10 5/8", 11 5/8", 12 1/4" tricon bit, 13 5/8", 14 3/4", 15", 15 1/2", 16", 17 1/2" 1, 18", 19", 20", 22", 24", 26", 28", 30", rock bit. Metal seal, rubber seal, rolling bearing, plain bearing, used in different formations and surroundings,

1R# Operation Instructions

Cautions:

Please select the appicable formation and parameters accoding to the instructios.

Surface equipment and mud property must meet the requirement of drilling operation.Tripping and drilling must be smooth.

High WOB should be elected by the use of low RPM, Never choose maximum WoB and maximum RPM at the same time.

The bottom of well must be cleaned, a large segment of the drill cannot be expanded, designated borehole. The bottom of well unclean, have junks, narrow borehole or the situation complex, it cannot use insert bit,tricone bit,tricone,rock bit,drill bit,drilling bit.

Never heat the bit (e.g. welding, boiling and firing). Don't soak new bit in oil or force the cone to rotate.

Never use defective nozzles with erosive marks, breaches or cracks, etc.

The operator must concentrate and avoid slipping away. If the bottom of well have turtle jump and other unusual circumstances, it should be analyze on time and take method.

Various type of sealed bit with journal bearing, hand rotating consume large is normal. Don't soak bit in oil or with a heavy beat.

Available in various sizes, customized tri-cone bits, 3 7/8", 4 1/2", 5", 6"cone bit, 7 1/2", 8 1/2"tri-cone bit, 9 1/2", 10 5/8", 11 5/8", 12 1/4" tricon bit, 13 5/8", 14 3/4", 15", 15 1/2", 16", 17 1/2" 1, 18", 19", 20", 22", 24", 26", 28", 30", rock bit. Metal seal, rubber seal, rolling bearing, plain bearing, used in different formations and surroundings,

Introduction

According to the number of cones, it can be divided into single-cone bit, tri-cone bit and assembled multi-cone bit. According to the cutting material, it can be divided into steel teeth (milling teeth) and insert tooth roller bits.

As a tool for drilling rock formations, the roller cone bit has been widely used, and the significant improvement in the performance of the drill bit directly reduces the drilling cost, especially in the past decade. Service life and ROP are two performance indicators that ultimately determine the degree to which a drill bit affects drilling costs. Increasing the ROP and service life of the drill bit is an effective way to reduce drilling costs. It has been confirmed that the improvement of the drilling speed has a greater impact on reducing the drilling cost than the improvement of the life of the drill bit. The most direct method of drilling speed. For a long time, people's improvement of cutting structure has mainly focused on the main cutting tooth structure. For example, in terms of cemented carbide tooth structure, people have successively invented wedge-shaped teeth, spoon-shaped teeth, eccentric spoon-shaped teeth, etc. . People gradually realize that the gauge structure also has a great influence on the ROP and life of the drill bit, especially in highly deviated wells and horizontal wells, which require a reasonable gauge structure. Many new gauge structures have been researched and developed. Good results have been obtained when applied to roller cone bits.

It can be seen from the research and application trends of drill bit manufacturers and research institutions in the tricone bit gauge structure, people gradually realize that the gauge structure has a greater impact on the ROP and life of the drill bit, especially the drill bit used in directional wells and horizontal wells The impact is greater, and the research and development of the new drill diameter-keeping structure has achieved good results in the application of roller cone bits. The diameter-gauge structure of the drill bit has developed from passive diameter-gauge to active diameter-gauge, and the diameter-gauge material has developed from low-wear-resistant materials to high-wear-resistant composite materials. ROP and life. There is a certain gap in the research of gauge structure and materials at home and abroad. Relevant domestic drill bit research institutions and manufacturers should further strengthen the research on gauge structure and materials, especially focusing on the research and application of some active gauge structures in drill bits to further improve the domestic teeth. The performance of the wheel drill bit provides drilling users with a high-efficiency drill bit that adapts to the new drilling process.

The roller cone bit is the most used in oil drilling and geological drilling. The roller cone bit has the functions of impacting, crushing and shearing the formation rock when it rotates, so the roller cone bit can adapt to various soft, medium and hard formations. Especially after the emergence of jet-type roller-cone bits and long-nozzle roller-cone bits, the drilling speed of roller-cone bits has been greatly improved, which is a major revolution in the development history of roller-cone bits. According to the type of teeth, roller cone bits can be divided into milling teeth (steel teeth) roller cone bits, insert teeth (hard alloy teeth are embedded on the roller cones) roller cone bits; according to the number of rollers, it can be divided into single cone bits, three teeth Wheel bits and assembled multi-cone bits. The most widely used and most common at home and abroad is the three-cone drill bit.

Fold and edit typical products of this paragraph

The tricone bit is an important tool for oil drilling, and its working performance will directly affect the drilling quality, drilling efficiency and drilling cost f1. Tri-cone bit design is mostly based on practical experience, combined with the method of trial and error, repeated design and calculation, so the design accuracy is low, the cycle is long, it is difficult to improve the design quality, and only one bit can be designed per calculation, which is inefficient. Therefore, it is very necessary to develop a set of three-cone bit CAD system to realize the parametric drawing of the three-cone bit. 1 Overall design of the system The parametric drawing system of the tricone drill bit adopts a functional modular programming method, and the whole system is divided into four functional modules: user interface management module, bit tooth surface structure design module, database management module, parametric drawing module. The design of the user interface is realized by the VBA secondary development tool embedded in AutoCAD. The user inputs the relevant parameters of the tricone bit design through the user interface module to realize man-machine information exchange. The main function of the bit tooth surface structure design module is to complete the complex tri-cone bit design data calculation according to the tri-cone bit design theory. The database management module is a database established by Access 2003 in the form of data tables.

Folding product use

drilling, exploration, oil, drill bits, drilling accessories

Fold product name

215.9mm metal seal Jianghan insert tricone bit

Folded product model

FJ517G

Folding product features

1. The floating bearing structure is adopted. The floating element is made of new materials with high strength, high elasticity, high temperature resistance and high wear resistance, and the surface is treated with solid lubricant. While reducing the relative linear velocity of the bearing pair, the temperature rise of the friction surface can be reduced, which can effectively improve the bearing life and bearing reliability under high drilling pressure or high speed drilling conditions.

2. Adopt high-precision metal seal. The metal seal consists of a pair of well-designed and processed metal seal rings as the axial dynamic seal of the bearing, and two highly elastic rubber energy supply rings are respectively located in the tooth palm and roller seal areas as static seals. A metal ring sealing surface is always in good contact.

3. The steel ball locks the cone to adapt to high speed.

4. The use of all-rubber oil storage bag that can limit the pressure difference and prevent drilling fluid from entering the lubrication system provides a good lubrication guarantee for the bearing system.

5. A new type of grease that can withstand 250°C high temperature and wear resistance is used.

6. The insert drill adopts high-strength and high-toughness carbide teeth, and the optimized design of the number of tooth rows, the number of teeth, the exposed tooth height and the unique alloy tooth shape give full play to the high wear resistance and excellent cutting ability of the insert drill. The tooth surface of the steel-tooth drill is coated with new wear-resistant materials, which improves the life of the cutting teeth of the drill while maintaining the high ROP of the steel-tooth drill.

Folding product advantages

According to the number of cones, it can be divided into single-cone, double-cone, three-cone and multi-cone bits. The most widely used and most common at home and abroad is the three-cone drill bit. In petroleum, earth and various drilling industries, roller cone bits are an indispensable and important part, but the price of roller cone bits is too high for some drilling industries, which has prompted some drilling industries to produce a lot of second-hand roller cone bits. Interest, its low price, and reliable quality (only 1/3 of its life is used in oil drilling), which reduces a lot of costs for the drilling industry, so second-hand roller cone bits have become an important part of some drilling industries.

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Folding product use

drilling, exploration, oil, drill bits, drilling accessories, trenchless

Fold product name

H series O-ring rubber seal plain bearing drill bits.

Folding product features

1. High-strength and high-toughness carbide teeth are used to improve the impact resistance of the teeth and reduce the tooth breakage rate;

2. The number of tooth rows, the number of teeth, the height of exposed teeth and the unique shape of the alloy teeth are optimized to give full play to the cutting ability and cutting speed of the drill bit;

3. The circlip is used to lock the cone, which can withstand high drilling pressure;

4. The inner hole of the cone is inlaid with a friction-reducing alloy to improve the anti-seizure ability of the bearing;

5. Using high saturated nitrile rubber O-ring, the optimized sealing compression improves the reliability of the bearing seal;

6. The use of all-rubber oil storage bag that can limit the pressure difference and prevent drilling fluid from entering the lubrication system provides good lubrication for the bearing system, and ensures the normal operation of the "O" ring seal, which improves the working life of the drill bit;

7. A new type of lubricating grease with high temperature resistance of 250℃ and low wear is adopted, which improves the high temperature resistance ability of the sealing and lubrication system of the drill bit.

Folding product advantages

It can withstand higher WOB when used under normal rotation speed.