Derun mechanical drilling jar is a full mechanical drilling jar, it also can be use as fishing tool. It generates upward jarring as well as downward jarring which can solve tight pull or sticking troubles during drilling. It is the first optional drilling jar for vertical well, deep well, directional well and complicated well operations
DERUN mechanical drilling jar is a full mechanical drilling jar, it also can be use as fishing tool. It generates upward jarring as well as downward jarring which can solve tight pull or sticking troubles during drilling. It is the first optional drilling jar for vertical well, deep well, directional well and complicated well operations
Derun drilling motor is a positive displacement motor. High pressure drilling fluid flows into the drilling motors, thereby enabling the hydraulic energy to be converted into mechanical energy, at the same time, the rotor drives the shaft and bit to rotate to achieve the purpose of drilling. Derun produces LZ73, LZ89, LZ95, LZ102, LZ120, LZ127, LZ146, LZ165, LZ172, LZ185, LZ197, LZ203, LZ216, LZ244, LZ286 and other types of drilling motors. They are for drilling diameter of 88.9 to 660mm. Derun also design and develop drilling motors with special sizes, different structural features and operating characteristics in accordance with the user's requirements, thus forming different varieties. At present, in addition to ordinary straight drilling motors, Derun can also provide the following types of drilling motors: Bent drilling motors The bent angle on the universal shaft can meet different kickoff requirement, there are single-bent and double-bent available. Bent angle adjustable drilling motors The bent angle of the drilling motors can be adjusted on well surface which enhance the extension of kicking off. Extension drilling motors On the basis of the ordinary drilling motor, improve motor torque to make the bit drilling quickly by increasing motor stage. Hollow drilling motors To meet the needs of high flow rate solids carrying in drilling, hollow rotors with carbide nozzles of different sizes are adopted, which can increase the input flow rate and the horsepower of drill bit. Drilling motors with high kick-off rate: Unique structural design, shorter body, bent point closer to the drill bit, and kick-off rate of up to 1 m. Saturated saltwater mud-resistant drilling motors: To maintain long time operation of drilling motors in saturated saltwater mud, special rotor coating is adopted to provide better corrosion and wear resistance. High temperature drilling motors In order to improve the high temperature resistance of the stator rubber of the drilling motors, to meet the drilling requirements in high geothermal gradient region and deep and ultra-deep well drilling requirements, high temperature resistant rubber is adopted to increase the temperature resistance of motor above 150 degree Sealed driving shaft drilling motors The ordinary mud lubricated driving shaft is replaced with oil lubricated seal driving shaft, which improves the working conditions of the thrust and radial bearings, thus extending the service life of the drilling motors.
Derun non-magnetic drill collars are made from non-magnetic materials with low-magnetic permeability. Api monogram, serial number, od, id, type and size of connections are stamped on recessed mill flats.
Derun provides all type of drill pipes, include oil drill pipe, water well geothermal well drill pipe, coalbed methane shale gas drill pipe and flush joint drill pipe, also various kind of tool joints. Description and specification Size full range from 2-3/8 inch to 6-5/8inch Grade e75 x95 g105 and s135 Upset type eu iu and ieu. Connection from nc26 to nc50 5-1/2fh and 6-5/8fh Standard api spec 5dp api spec 7-2 api rp 7g.
Derun drilling motor is a positive displacement motor. High pressure drilling fluid flows into the drilling motors, thereby enabling the hydraulic energy to be converted into mechanical energy, at the same time, the rotor drives the shaft and bit to rotate to achieve the purpose of drilling. Derun produces lz73, lz89, lz95, lz102, lz120, lz127, lz146, lz165, lz172, lz185, lz197, lz203, lz216, lz244, lz286 and other types of drilling motors. They are for drilling diameter of 88.9-660mm. Derun also design and develop drilling motors with special sizes, different structural features and operating characteristics in accordance with the user's requirements, thus forming different varieties.
Drilling Jar QJK type drilling jar while drilling is a fully mechanical jar with integrated upper and lower strikes. It has the advantages of simple structure, short length, convenient maintenance and disassembly. QJ-A type drilling jar while drilling is also a kind of all-mechanical jar. Its structural features are that the release force can be adjusted on-site, the setting is accurate, and it is easy to disassemble and assemble, which is suitable for drilling while working under various circumstances. QYA type drilling jar while drilling is a fully hydraulic type drilling jar while drilling with upper and lower strikes.It has many advantages such as simple operation, large shock force, convenient adjustment, high connection strength, stable performance, safety and reliability, and easy maintenance. This product does not cause false shocks when drilling, drilling, receiving a single or touching the bottom of the well, and its hydraulic delay allows the operator to dynamically adjust the size of the upper and lower strike force. Fully sealed oil bath lubrication helps reduce wear and increase service life. In addition. Its position in the drill string assembly is relatively free, and it can be placed in various positions such as tension, neutral point, and compression. It can meet the needs of drilling operations under various operating conditions such as land and sea.
Lhbz mechanical drilling jar is a full mechanical drilling jar, it also can be use as fishing tool. It generates upward jarring as well as downward jarring which can solve tight pull or sticking troubles during drilling. It is the first optional drilling jar for vertical well, deep well, directional well and complicated well operations. Model, lhbz121, lhbz165/159, lhbz203/197 Od mm(inch), 121 (4 3/4), 165(6 1/2) /159(6 1/4), 203(8) 197( 7 3/4) Id mm(inch), 50.8 (2), 57.2( 2 1/4), 71.4(2 13/16) Oal(locking place)mm (inch), 6370(251), 7015(276), 7310 (288) Upper stroke mm (inch), 210 ( 8 1/4), 142( 5 9/16), 145 (5 11/16) Lower stroke mm (inch), 197 (7 3/4), 172 (6 3/4), 178 (7) Conn., nc38, nc50, 6 5/8reg Max. Tensile load(mn), 1.4, 2.2, 2.5 Max. Working torque (kn. M), 13, 15, 20 Upward jarring force(kn), 450, 630, 820 Downward jarring force(kn), 230, 360, 460 Pumping area(cmâ²), 62, 100, 174
Drilling jar Drilling tool Lhbz mechanical drilling jar is a full mechanical drilling jar, it also can be used as fishing tool. It generates upward jarring as well as downward jarring which can solve tight pull or sticking troubles during drilling. It is the first optional drilling jar for vertical well, deep well, directional well and complicated well operations.
ZSJ/ZXJ Type Drilling Jar (hydraulic-mechanically) The drilling jar which is connected with drill tool and worked with drill string is a downhole stuck freeing tool in drilling operation .It is a first selected tool for directional well,complicated well and deep well.The drilling jar is consisting of ZSJ type drilling up jar and ZXJ type drilling down jar,both they can be used mutually or operated separately .The up jarring section takes use of hydraulic mechanism,the jarring force can be adjusted according to up elevating load but can not exceed the max.load for tool load rated .The down jarring section takes use of mechanical friction mechanism, the jarring force is well preadjusted by adjusting device before put into downhole.No re-adjustment can be allowed after jar is put into downhole.
