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Combined sand-washing well repairing machine

A technology of workover rig and sand flushing, applied in flushing wellbore, drilling equipment, wellbore/well components, etc., can solve the problems of non-adjustable angle, narrow adaptation range, low efficiency, etc., to achieve improved efficiency, stable pressure, Efficient effect

Active Publication Date: 2012-05-30
TONGHUA PETROCHEM MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing technology, sand washing pump trucks, solution tank trucks and cranes (mainly used to lift the screw pump rotor) are often used in oilfield workover and sand washing operations. The three trucks are independent and used in conjunction. The disadvantages are that there are many equipments and high costs. Low efficiency; the angle of the vehicle-mounted derrick cannot be adjusted after it is erected, and it is usually only suitable for vertical wells, and the scope of application is narrow

Method used

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  • Combined sand-washing well repairing machine
  • Combined sand-washing well repairing machine
  • Combined sand-washing well repairing machine

Examples

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Embodiment Construction

[0013] see figure 1 , 2 The combined sand washing and workover rig includes a vehicle-mounted chassis 1 and a vehicle-mounted derrick 2 . A sand washing pump 3 , a solution tank 4 and a winch 5 are installed on the vehicle chassis 1 , and the sand washing pump 3 is connected to the solution tank 4 . The winch 5 is mainly used for hoisting the screw pump rotor.

[0014] The vehicle-mounted chassis 1 is provided with a diagonal tie rod 6, and the diagonal stay rod 6 is locked and connected with the cylinder 7 (preferably pneumatic or oil-driven) on the derrick 2 top.

[0015] see image 3 , the oblique tie rod 6 and the cylinder block 8 are slidingly connected through the sliding sleeve 9, the sliding sleeve 9 is fixedly connected with the cylinder block 8, and the cylinder block 8 is fixedly connected with the derrick 2. The piston rod 10 in the cylinder 7 is plugged into the jacks 11 arranged at intervals on the diagonal stay rod 6 respectively. When the piston rod 10 is r...

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Abstract

The invention relates to a vehicle-mounted petroleum workover rig, in particular to a combined sand removal workover rig, which is particularly applicable to sand removal operation of a screw pump viscous oil well and simultaneously is applicable to the sand removal operation of common oil wells and workover operation of rated hook load with 15 tons. The workover rig comprises a vehicle-mounted chassis and a vehicle-mounted derrick. The vehicle-mounted chassis is provided with a sand removal pump, a solution tank and a winch; and the sand removal pump is connected with the solution tank, thusrealizing multiple functions with one machine and continuous operation. The equipment is used for sand removal operation of the screw pump viscous oil well, can replace a traditional crane, a well-flushing vehicle and a pumper, realizes multiple functions with one machine, improves the efficiency, reduces the equipment and reduces the workover cost. The equipment is provided with a hoisting system, thus not only being capable of carrying out broken down operation of sand removal but also being capable of carrying out minor overhaul operation of rated load with 15 tons. The derrick adopts a self-rendering structure of a long and diagonal draw bar so as to lead the equipment not only to be capable of carrying out operation on a vertical well but also to be capable of carrying out operation on a deviated well with the angle of more than 45 degrees. The equipment has flexible operation and is energy-saving and oil-saving.

Description

technical field [0001] The invention relates to a vehicle-mounted petroleum workover rig, which is a combined sand washing and workover rig. It is especially suitable for the sand washing operation of the screw pump type heavy oil well, and it is also suitable for the sand washing operation of the ordinary oil well and the workover operation with a rated hook load of 15 tons. Background technique [0002] In the existing technology, sand washing pump trucks, solution tank trucks and cranes (mainly used to lift the screw pump rotor) are often used in oil field workover and sand washing operations. The three trucks are independent and used in conjunction. The disadvantages are that there are many equipments and high costs. Low efficiency; the angle of the vehicle-mounted derrick cannot be adjusted after it is erected, and it is usually only suitable for vertical wells with a narrow range of application. Contents of the invention [0003] The object of the present invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B21/00E21B7/02
Inventor 赵海波王迎兰刘金花
Owner TONGHUA PETROCHEM MACHINERY MFG
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