oilfield cementing tools- cement rubber plugs

     five wiper rubber coated aluminum or plastic inserts cementing plugs

The cementing plug is used to separate the cement slurry from the mud. It can prevent the mud from blending into the cement slurry to influece the cementing quality.

 

top plugs

Structure:

There are two kinds of cementing plug: conventional cementing plug and special cementing plug. Conventional cementing plug is divided into top plug and bottom plug. Special plug has top/middle/bottom plug used in two-stage cementing, drill pipe plug and hollow plug used in drilling liner cementing and composite plug used in composite casing.

bottom plugs

Structure features: 

1.The top plug is solid. The bottom plug is hollow. They can all be drilled out with PDC bits.

2.The material of the plug body is acrylonitrile- butadiene rubber. It is heat-resisting and tough. 

3.Special materials designed for easy drill out with PDC bits

4. Normal and non-rotating type can be available

5. The non-rotating type can save the drilling time

6. Size: 4 1/2"--20":

Specification:

Casing size(in)	casing weight range		Wiper Fin O.D
	mm	in	mm	in
4 1/2"	14.14-17.26	9.50-11.60	110	4.331
5"	17.11-35.86	11.50-24.10	122	4.803
5 1/2"	20.83-39.88	14.00-26.80	135	5.315
7"	25.30-56.55	17.00-38.00	170	6.693
7 5/8"	35.72-63.69	24.00-42.00	185	7.283
9 5/8"	53.57-79.62	36.00-53.50	235	9.252
10 3/4"	60.27-97.77	40.50-65.70	260	10.236
13 3/8"	71.43-107.15	48.00-72.00	333	13.110
20"	139.89-197.93	94.00-133.00	498	19.606

API 10D Spec Single Piece Spring Bow Centralizer

                       API 10D Spec Single Piece Spring Bow Centralizer

We provided single piece centralizer is highly admired by our respected clients owing to its features like flexibility, operating fluency and many more. The offered piece centralizer is used to centralize casing during the cementing stage of oil wells. This provided piece centralizer is manufactured using the superb quality raw material and the latest technology.

6 pieces bows design centralizer

Product Details:

添加图片说明

4 1/2"*6" spec to USA clients

• Is newly designed integrated steel flexible Centralizer used to centralize casing during the cementing stage of oil wells
• Fully integrated (Slip On) centralizers are manufactured in any diameter and as per customer requirements
• The blades, top and bottoms rings are made of one piece to ensure the centralizer s integrity during rig operations.
• The specifications comply with API Spec 10D for starting compression, running down hole and expansion force
• These centralizers offer high fatigue strength for axial forces and radial side loads on bows during tubular rotation
• More flexibility as comparison to other spring bow centralizer.
• 
  
• some specifications for reference:

• Specifications	In-Dia(mm)	Wall Thickness (mm)	Height(mm)	Total height(mm)	Largest Dia(mm)	Spring Number
  5-1/2”*8-1/2”	142-148	3-5	55	650	225	5
  7”*9-5/8”	181-186	3-5	55	650	255	6
  7”*8-1/2”	181-186	3-5	55	650	235	6
  8-5/8”*12-1/4”	223-228	3-5	55	650	330	8
  9-5/8”*12-1/4”	250-255	3-5	55	650	330	8
  10-3/4”*12-1/4”	274-276	3-5	55	650	330	9
  13-3/8”*17-1/2”	342-347	3-5	55	650	450	11
  18-5/8”*24	476	3-5	55	600	610	12
  20”*26	510	3-5	55	600	660