Integral Construction Hydraulic Pressure Whipstock

Many oil fields in domestic and foreign has reached the mid-final exploitation stage.The old well recovery and the accident well processing gradually increased.Window sidetracking technology has been widely used as the main method to solve the problem.
The conventional whipstock window cutting need decline whipstock and window cutting two steps, operation complex and cost expensive.The integral construction hydraulic pressure whipstock can complete two steps at one time, greatly shorten the construction period, save the construction cost.

The integral construction hydraulic pressure whipstock has simple operation, sealing strong,short window cutting advantages etc . 

The integral construction hydraulic pressure whipstock have two parts: whipstock and window cutting milling taper.

  • Whipstock

Whipstock adopts hydraulic seat sealing way, strong seat sealing, easy operation. The slant face is cambered surface use hardening treatment, when window cutting, the milling taper highly coincides with the slant face, drilling pressure can be controlled easily, decreased choke off drilling and bit bouncing. Internal adopts special pressure transmission structure, safe and reliable.Tool internal self-locking mechanism will be improved, using the axial and circumferential all-around self-locking, greatly improve the reliability of the tool.


  • Window Cutting Milling Taper

In casing, whipstock and window cutting milling cone matched to finish window cutting work. whipstock and window cutting milling taper with optimized design of tool shape, cutting edge Angle, selection of alloy block, make window cutting and maintenance integrally, improve the construction speed, shorten the construction period.

Basic parameters and performance index


applied 
pipe		WhipstockWindow Cutting Milling ConeAdapted 
deviation		Adapted 
temperature		Sealing 
type
Outline     
dimensions		Bevel 
angle		Bevel
length		Arc-like 
diameter		Outline 
dimensions		Buckle typeclipping 
pressure
51/2＂ (φ139.7)φ116x34643.2°1900φ125φ116x540211x23040KN≤40°≤200℃Direct pressure sealing
7＂ (φ177.8)φ150x39603.2°2515φ165φ150x630311x33060KN
95/8＂ (φ244.4)φ210x48504°2650φ225φ210x710411x43080KN


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