New-type MFC Drill and Scrape Integrated Operation Tool and String Selection (Patent product)

New-type MFC Drill & Scrape Integrated Operation Tool is a operation tool which combined with many functions, from suggestions by Tarim Oilfield and designed with China Petroleum Energy. It is awarded national patent. The tool is composed by centralizer, MFC hydraulic scraper and sleeve type switch, and has drill pipe connection thread on both sides. It could coordinate with string tools of drilling, grind, milling, cleaning well and etc. Achieve of many types of operations in one time of running, reduce string tools running times and largely improve operation efficiency to lower production cost.

After operation of drilling, grind, milling, cleaning well and etc, drop ball valve from wellhead to increase pressure, shoot scraper blade, hydraulic scraper could work normally as standard scraper. Open circulating ports located on sleeve type switch which connected on bottom of scraper, could start direct/reverse circulating well flushing.

New-type MFC Drill & Scrape Integrated Operation Tool and String Selection (Patent product)

Centralizer

  1. Usage
    Centralizer is a new type and multi-function accessory tool which work with hydraulic scraper together, could prevent scraper blade to hurt casing before scraper start to operate and tool running in well & drilling cement plug.

  2. Technical specification
    • Suitable casing size: 5’’~10 3/4’’
    • Connection thread: 2 3/8’’IF. B×P, 2 7/8’’IF. B×P, 3 1/2’’IF. B×P, 4 1/2’’IF. B×P

MFC Hydraulic Scraper

  1. Usage
    New-type hydraulic scraper has advantage as following:
    In operation of drilling, milling, grind and etc, scraper blade is controlled into slot of body, with force by top centralizer, scraper expand little blade which could not touch casing internal surface to affect of normal operations.
    1). This tool could work by itself, or coordinate with drill & milling tools, completion tools and etc as multi-function tool.
    2). In multi-function operations, scraper should connect with sleeve type switch and centralizer.

  2. Technical specification
    1). Suitable casing size: 5’’~10 3/4’’
    2). Scraper body open pressure: 14±0.5 MPa
    3). Connection thread: 2 3/8’’IF. B×P, 2 7/8’’IF. B×P, 3 1/2’’IF. B×P, 4 1/2’’IF. B×P

Sleeve Type Switch

  1. Usage
    Sleeve Type Switch is one type of tool which supply to establish differential pressure for hydraulic packer or other hydraulic control tools in workover, completion operation etc.
    Drop ball valve in string tools to hold pressure and start operation.

  2. Technical specification
    1). Suitable casing size: 5’’~10 3/4’’
    2). Circulating port open pressure: 22.5±0.5 MPa
    3). Connection thread: 2 3/8’’IF. B×P, 2 7/8’’IF. B×P, 3 1/2’’IF. B×P, 4 1/2’’IF. B×P

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