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Screw drilling tools Hydraulic pressure balance workover rig combined equipment

Country/Region china
Company Yancheng Jinfeng Petroleum Machinery Manufacture Co., Ltd.
Categories Workover Rig
Telephone 0515-88804670, 88802563
ICP License Issued by the Chinese Ministry
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    Screw drilling tools Hydraulic pressure balance workover rig combined equipment

    Hydraulic pressure balance workover rig combined equipment

    1. Overview

    At present, most of our country’s onshore oil fields has stepped into the mid-late stages of development. For the pressure of oil and gas well declines year by year, injection-production conflict is increasing. In order to enhance oil recovery ratio up to the hilt, kinds of new technology and new process is wildy applicated in different kinds of oilfields. And the pressure balance workover operation process has been wildly used these years. For under pressure workover equipment of oilfields with low efficiency of workover operation and not easy for transfer, our company specially research and develop the hydraulic pressure balance workover rig combined equipment.
    Hydraulic pressure balance workover rig combined equipment is mainly used for the operation of under pressure well in oilfield, and nomally big and small workover operation. The equipment is controlled by hydraulic, in the perssure balance workover operation, the equipment can pull out or push in one string of tubing at one time, having the advantages of high effiecency in the operation, saving energy, safety and reliability, environmental protection, small installed power, non-pollution, low noise, easy for transfer.

    1. Structure

    The workover rig combined equipment is mainly composed of power system,lifting system, counter pressure system, well-head seal and fixed device, operating system, etc.

    Power system is mainly composed of electric control cabinet, explosion proof motor assembly, high-pressure oil pump assembly, tank and hydraulic accessory, etc.

    Lifting system is mainly composed of differential master cylinder, the combination of master cylinder and pulley, hydraulic tensionmeter, etc.

    Counter pressure system is mainly composed of counter pressure cylinder, counter pressure combination of master cylinder and pulley, angle pulley fixed in frame, angle pulley, counter pressure elevator, etc.
    Well-head seal and fixed equipment is mainly composed of workover operation platform, four ram BOP, pub joint, annular BOP, shear ram BOP, pub joint and safety slip, accumulator connecting to the well-head seal and fixed device and operation valve, etc.

    Operating system is composed of pressure valve, direction valve, flow valve. The system is mainly used for controlling the system pressure, action and speed of each part, etc

    Main TechnicalParameters

    Serial number

    Item

    data

    1

    Suitable well depth, m

    4000

    2

    Hook load
    gears)
    kN

    90

    160

    240

    300

    500

    Max. gear

    800

    3

    Lifting speed of hook, m/s

    ≤1.3

    4

    Lifting load of hook, kN

    ≤800

    5

    Hook lifting stroke, m

    0~16

    6

    Counter pressure load, kN

    ≤200

    7

    Counter pressure speed, m/s

    ≤0.4

    8

    Counter pressure stroke, m

    0~12

    9

    Max. Drift Diameter of Annular BOP, mm

    180

    10

    Min. Drift Diameter of Annular BOP, mm

    0

    11

    Working pressure of annular BOP hydro-controlled system, MPa, MPa

    ≥10.5

    12

    Rated working pressure of well-head seal and fixed device(dynamic/static), Mpa

    14/21

    13

    Load of safety slip in the well-head fixed and sealeddevice, kN,

    ≥300

    14

    Installed power, kW

    67

    15

    Tank volume, m3

    1.3

    16

    Accumulator volumeof well-head fixed and sealed device, L

    120

    17

    Quality Screw drilling tools Hydraulic pressure balance workover rig combined equipment for sale
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