T-type Multi-branch Drilling Technology    

Oil production increased by 6-12 times;

Recovery efficiency of reservoir increased more than 15%

The maxium production of single well after T drilling is 3980ton.

The single well production on off-shore after T drilling is 1100bbls



What equipment are required

2025-04-19

Required Workover Equipment


No.

Equipment

Model

Capacity

Remark

1

Workover Rig

XJ550/450

120Ton

Max. lifting Capacity: 120Ton

2

Platform

ZZT135DⅡ-00

135Ton

Torque: 13500N∙M

3

Derrick

JJ13533

135Ton

DP capacity: 3000m

4

Well Control System

2FZ18-35

35MPa

BOP assemble and Remote control system

5

Circulation System

F800


Circulation line pressure: 35MPa

Mud Pump: F800

6

Mud Treatment System


80m3

Shale shake and mud tanks,Mixing hopper


Special Equipment for T-type Drilling

No.

Item

Specification

Unit

Qty.

Remark

1

Flexible tool for milling

Φ102×38mm

m

5

Thread type 230

2

Flexible tool for Building-up

Φ98×36mm

m

10

Radius of curvature 2.5m

3

Flexible tool for Drilling

Φ102×38mm

m

120

Thread type 231

4

Whipstock Assembly

Φ118mm*1200mm

Pc.

3

Guidance tool

5

Overlying Whipstock

Φ118mm*800mm

Pc.

2

Suspension support

6

Compound milling cone

Φ118mm

Pc.

2

Casing milling


No.

Item

Specification

Unit

Qty.

Remark

7

Building-up bit

Φ114mm

Pc.

2

 Special PDC bit

8

Drilling bit

Φ114mm

Pc.

2

Gauge PDC bit

9

Lifting sub

230 thread type

Pc.

2

Tools

10

Releasing tool

Φ46*22mm

Pc.

2

Assembly

11

Recovery tool

Φ46*22mm

Pc.

2

Fishing tool

12

Special multi-point inclinometer

φ27×340mm

Pc.

1

Survey tool

13

Flexible screan

φ89*φ60

m



14

Survey sub


Pc.

1

Spare parts

Preparation of downhole tool:

Connection of flexible pipe:

Normal hydraulic tong;

B-type tong;

The auxiliary of safety clamp.




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