L&TD

•  Specifications

  Benefits and Features

- MKAB makes high about temperature and pressure for formations.(This is one of advantages when use MKAB).

- MKAB always fit up in a lubricator and can use in under balance.

-This equipment makes increasing recovery factor and can through christmas tree , tubing and perforate under packer.

- During using it, the well may be on situation of exploitation.

-The length of the gun may be up to 10 meters.

• Specifications

The Weatherford WRP is a wireline set, packer type, retrievable bridge plug capable of holding differential pressure from above or below. Utilizes standard wireline or hydraulic setting tools. Used as a temporary bridge plug for acidzing, fracturing, cementing, casing pressure tests, wellhead replacement and zone isolation.

• Pressure rating

· Benefits & Features 

- Tubing cutter is always shot between two collars. Operatinally very simple

- Cutting by tubing cutter will not damage casing

•   Specifications 

· Benefits and Features

Recommended usage of largest size drill collar severing tool for the bore or restriction size encountered.

Drill Collar: Severing tool should be centered in the body of the collar.

Drill Pipe: Severing tool should be centralized in the coupling with approximately 10,000 pounds of tension on the string at time of firing.

- Severing tool has been used many times to release drill collar or heavy drill pipe from the well.

  Specifications

    Casing and Tubing Sizes

      Benefits and Features

Split shot with small O.D can pass through tubing while no another cutter would go down.

Using Split shot, we can save time. Split shot can be use in cases of: Paraffin blockage, mud, corroded tubing, collapsed pipe.

No other cutter would

go down

Paraffin blockage

Mud

Corroded tubing

3-1/2” Tubing cut with

the Split Shot Cutter

3-1/2” Tubing cut with

the Split Shot Cutter

    Specifications

   Benefits and Features

- Swing jet can perforate at under balanced and makes the shell crater deeper (about 10 ”) in formations.

- Swing jet makes increasing recovery factor and can pass through Christmas tree, tubing … and perforate under packer.

- Swing jet can perforate during production.

- Swing jet carries larger charges than reguler through tubing guns.

Specifications

Benefits and Features

Makes increasing recovery factor of hydrocarbon saturated zone in oil fields.

- Can pass through Christmas tree, tubing.

- Can perforate under balance and under packer.

- Can perforate during producing process.

- The length of the gun may be up to 10 meters.

L & TD has used this equipment since 1988 in hundreds wells. These wells were located at Bach Ho, Dai Hung and Rong oil fields. The angle of wells may have been to 70 degrees and the depth up to 5000 m.

This equipment can be uesd without cutting off electric supply.

Wireline perforation has been used very safely in our oil field’s. Advantages of wireline perforation is the gun can not fire if hydrostatic pressure less 10 atm and the length of the gun may be from 3 to 8 meters.

The picture shows, the well after perforation using a wireline gun.

- Density: 20 charges per meter.

- Gun size: 3-3/8”.

- Perforation intervals: 3640-3660, 3690- 3695 and 3715-3725m

This picture shows the result of production logs after perforation using a wireline gun for a production well in basement

- Shot density: 20 charges per meter.

- Gun size: 3-3/8”.

- Perforation intervals: 3680 - 3719.5 m.

Benefits and Features:

•  Perforation in highly deviated or horizontal wells
•  Very safe since the well can not blow when perforating
•  The needed for perforration is very little
  
•  Perforate can be under or over balanced for many formations with hundreds meters of perforated interval.
  
•  Perforation under balanced gives deep penetration stable antry holes.

Specifications 

•  Gun O.D.: 3-3/8”
•  Casing O.D: 4.5”
•  Shot Density (spf): 6
•  Gun type: Scalloped gun systems
•  Entry hole: 0.59” (Concrete target)
•  Concrete target penetration: 31.12” (Concrete target)

Time Vs Temperature chart for explosives

The picture shows the result of production logging after perforation using TCP

Perforation intervals:

4271 - 4282,

4285 - 4291,

4294 - 4314 m.

versus producing flows at: 24.3, 17.1 and 3.6 m3 of oil per day.