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  • Ultra-high twist-resistant drill pipe joint

    HLST is a new generation of double shoulder joint developed by Hilong based on HLIDS. It is suitable for harsh well conditions such as deep wells, ultra-deep wells, horizontal wells, extended reach wells and sulfur-containing environments.

  • Sulfur-resistant drill pipe

    Hilong's sulfur-resistant drill pipe is a special drill pipe developed by Hilong and capable of resisting stress and corrosion of hydrogen sulfide.

  • Aluminum alloy drill pipe

    Hilong aluminum alloy drill pipe (HLADP) has the characteristics of small specific gravity, good flexibility, and corrosion resistance. It is suitable for oil and gas production in complex well conditions such as ultra-deep wells, horizontal wells, highly corrosive media wells, and directional wells.

  • Efficient cuttings bed drilling tool

    Hilong High-Efficiency Debris Bed Removal Drilling Tool (HLECDT) is a drilling tool product specifically designed to reduce the accumulation of debris and remove the debris bed during drilling operations. It includes high-efficiency debris bed removal drill pipe (HLECDP) and high-efficiency Cuttings bed removal weighted drill pipe (HLECWDP). It is characterized by adding several groups of multi-line spiral groove structure with a certain depth, long lead and special cross-sectional shape on the outer circle of drill pipe or weighted drill pipe. During rotary drilling, this structure can play the role of agitating and destroying the cuttings bed. By improving the characteristics of the drilling fluid flow field at the bottom of the wellbore of high-angle, long-reach, and horizontal wells, the cuttings are "thrown" To the “high side” annulus, which is finally taken away by the drilling fluid, thereby reducing or eliminating the cuttings bed formed by the accumulation of cuttings.

  • Large size horizontal directional crossing drill pipe

    As the difficulty of traversing increases, the requirements for traversing drilling tools also increase. Insufficient rigidity and buckling strength of conventional drill pipe in long-distance horizontal directional crossing project results in the phenomenon of "rope throw" of drill pipe, and the pipe body is prone to fracture fatigue failure. It is difficult to align and buckle the joint in the crossing project, and thread failure such as sticking often occurs.

    Hilong designed and produced the drill pipe to meet the requirements of large diameter and the requirements of stiffness and thrust. The special thickened design improves the fatigue performance of the drill pipe. The special joint thread and guide segment design prevent the sticking to improve the fatigue performance of the joint and meet the crossing project. Need.

  • Low temperature resistant drill pipe

    Hilong cryogenic drill pipe is a professional drill pipe independently researched and developed to meet the needs of oil and gas exploration operations in high and cold regions, and is suitable for low temperature environments (such as South and North Pole).

  • Digital Threaded High Torsional Double Shoulder Drill Pipe Joint Technology

    HLIDS is a high-torsion double shoulder drill pipe joint developed on the basis of HLDS. Compared with API joints, HLIDS joints have the following characteristics:
    1.Use double shoulder structure
    2. Smooth transition of inner diameter
    3. Interchangeable with API joints and double shoulder joints of mainstream drill pipe manufacturers.

  • High-strength drill pipe

    Hilong high-strength drill pipe is a proprietary product suitable for harsh drilling environments such as deep wells, ultra-deep wells, and extended-reach wells. It has high strength, high toughness, and high fatigue resistance. The steel grades are HLDT-SHTMZ140, HLDT-SHTMV150, HLDT-SHTMU165. Through the use of special materials and strict heat treatment process control, it has good impact toughness while increasing its strength.

  • Quickly drill the drill pipe with zero slip

    Hilong Zero Slip Bite Quick Lifting Drilling Drill Pipe is a special product specially designed and developed to solve the problems of low efficiency of the bite drill pipe body and double elevators during the lifting operation. It is characterized by adding a shoulder at a certain position from the end face of the female joint on the basis of API ordinary drill pipe. When drilling, the drill string sits on the pneumatic slip, and the gravity is axially carried by the bearing slider of the pneumatic slip; in addition, the position of the shackle on the female joint is increased to facilitate the shackle.

  • Short drill pipe for roadway rig

    Short drill pipe for roadway drilling rig is a new type of drilling tool developed by Hailong Group to meet the requirements of coalbed gas drilling. At present, it has developed two types of products: triangular spiral drill pipe and spiral drill pipe. It is suitable for various roadway drill rigs for coalbed gas exploration and drilling. use.

  • HLGS hermetically sealed joint

    HLGS air-tight joints are designed and developed on the basis of HLDS joints. They also have high torsion resistance and high air-tight performance. They can be used for drill string testing, high-pressure workover, completion operations and underbalanced drilling.

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