| water well with pressure operation device |
| Author：管理中心
Source： Release date：2014-7-31 Clicks：1488 |
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BYJ18-21/35 water well with pressure operation device belongs to the light hydraulic auxiliary type with pressure operation device, can work with regular XJ250 workover rig or wheel type workover rig. The device including power part and wellhead operation part, and the power part is skid structure. It mainly includs diesel engine and pump, hydraulic oil tank, hydraulic oil pump, hydraulic control system, and the accumulator system, etc.; Wellhead operation part consists of triple ram preventer (including collar detector), the annular preventer, gripper tube device and universal slips, lifting hydraulic cylinder, work platform and the driller's control platform, and ladder, tubing ramps and other ancillary components; Driven part design for skid box type structure, wellhead operation part includes the BOP combination and operation platform, platform hierarchical structure, with the BOP combination into one.
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1, The BOP combination which designed according to the characteristics of the water well operation, can improve the basic operation of water well snubbing operation process, to improve work efficiency and safety, and decrease the manufacturing cost of equipment and operation and maintenance cost; 2, Equipped with triplex ram BOP, when the pressure in the well rising or the with pressure operation device need to repair, can use half sealing ram of triplex ram BOP to close the annular space between casing and tubing; in the process of operation, it can shear off tubing to close the well when the wellhead is out of control,. 3, In the process of operation，it can trip up and down downhole tools with pressure and force through tubing coupling;
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Item
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Technical parameters
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Lifting hydraulic
cylinder stroke m
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1.5
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Lifting hydraulic
cylinder up force kN
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500
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Lifting hydraulic
cylinder down pull kN
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300
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The max. Working
pressure of system MPa
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21
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The max. Static
loading pressure of system MPa
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35
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Dia. Of system mm
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φ186
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The max. Working
pressure of hydraulic system MPa
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21
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