Zhongyuan Petroleum Exploration Bureau Machinery Manufacturing Plant of the original pump group is powered by PZ12V190B diesel engine, through the universal shaft, linkage unit, and then to the form of transmission belt to the 3NB21300 drilling pump. The large unit structure, transportation difficulties, and poor performance of diesel speed, can not meet the needs of drilling workover process. And due to the reliability of diesel engines, linkage poor, frequent downtime maintenance situation, to the user caused many unnecessary losses. According to the current drilling needs of the Central Plains Oilfield in Indonesia and Saudi Arabia, we developed a new TJBZ01 trailing pump group on the basis of the original pump group. This type of pump group has the advantages of superior performance, reasonable structure and good transmissibility. It is suitable for drilling operations in various complicated environments and greatly improves the defects of the original pump group such as complex structure and poor practicability.

First, the structural characteristics and the main technical parameters

1, structural characteristics

TJBZ01 type trailing pump group uses Cat company 3412E EFI diesel instead of domestic PZ12V2190B diesel engine as a power machine. The machine is small in size, light in weight, high in mechanical efficiency, low in fuel consumption, convenient in use and maintenance, good in emission characteristics and superior in cold start performance, and can meet the requirements of F2800 type or F21300 type mud pump under various working conditions. The pump group equipped with BY801D hydraulic transmission instead of JS321000-type reducer and linkage, which uses a single-phase radial three-phase with a lock integrated torque converter, planetary gear mechanical transmission, hydraulic control system with the load Change, can automatically switch to torque or lock condition "This configuration not only greatly reduces the volume, but also take advantage of BT801D-type hydraulic transmission speed governing characteristics to meet drilling conditions in different conditions of the drilling fluid displacement Different from pressure requirements "The hydraulic transmission offers 8 speed gears. Use F2800 or F21300 mud pump instead of the original 3NB21300C mud pump. This type of drilling pump with light weight, advanced structure, uniform displacement, easy maintenance and so on. The pump group uses V251.5 universal coupling coupling hydraulic torque converter output and mud pump input shaft, thus replacing the original V-belt drive. Shorten the transmission distance, improve the transmission efficiency and prolong the service life. The pump configuration 30t high and low semi-trailer chassis, the chassis girder 450mm welding process steel, double bridge using ZS12B-type structure, the selection of 11.00220 Yellow tire, dual-chamber brake. In order to increase the stability of the entire unit, the arrangement of six Fuwa 28t bearing leg device, symmetrical arrangement, the long-term operation of the entire unit off the ground "for transport operations, with a Mercedes-Benz tractor pump group Front of the 50 # traction pin, take-back device can be long-distance driving.

2, the main technical parameters
Chassis type 30t high double bridge semi-trailer chassis double axle wheelbase 1300mm
Tractor Mercedes-Benz front traction 50 # traction pin turning radius & n
bsp; 2200mm
Diesel Engine Model Cat3412E
Hydraulic transmission model BY801D
Drilling mud pump F2800 or F21300
Universal coupling U251.5 Dimensions (length, width and height) 11700mm · 3000mm · 1400mm

Second, the power transmission process

During the operation of this type of pump group, the power generated by the diesel engine is transmitted to the drilling pump through the coupling after passing through the torque of the hydraulic transmission. During this process, the turning motion is converted into reciprocating motion and the mechanical energy is converted into hydraulic energy. That is, the power generated from the diesel engine y hydraulic transmission (variable speed, torque) y universal coupling y drilling pump.

Third, the use of

Since 1999, when the first TJBZ01 trailing pump unit was used by Saudi Aramco's "China 2" drilling crew, up to now, 8 units of DuRi and Minas fields have been used in Indonesia. According to the users, TJBZ01 Pumps run smoothly, reliable quality, easy to operate, not only reduce the labor intensity of workers, improve the working environment, better meet the drilling and drilling process on the mud parameters of demand, but also has a very good transmissibility , So, by the drilling crew welcome.

Fourth, the conclusion

(1) superior performance, high reliability, less wearing parts, can work under complex environmental conditions.

(2) advanced and reasonable structure, the whole device is small in size! Light weight diesel engine, transmission, coupling, drilling pump are placed on the car chassis Compact and reasonable "

(3) Simple installation and maintenance! Low cost, no complicated foundation. Installation is simple and fixed, long service life, convenient maintenance and repair.

(4) good transportability, the use of trailer-mounted structure, transportation and mobility flexible.

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