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Oil Well 140mm BTC Cementing Head Cementing Tool Dual Plug

Oil Well 140mm BTC Cementing Head Cementing Tool Dual Plug

140mm BTC Cementing Head

Cementing Tool Dual Plug

Oil Well 140mm Cementing Head

Place of Origin:

CHINA

Brand Name:

SWS

Model Number:

142 series double plug

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Product Details
Name:
Oilfield Tool
Series:
142
Type:
Oil Drilling Machine Parts
Function:
Cementing Connection
Applicable Industries:
Energy & Mining
Material:
Steel
Product Description

Oil Well Cementing Tool Dual Plug BTC Double Plug Cementing Head With Factory Oilfield Tool

 

1) Description

Cementing head is a device fitted to the top joint of a casing string to hold a cement plug before it is pumped down the casing during the cementing operation.

 

2) How to work for Double Plug Cementing Head

In most operations, a bottom plug is launched before the spacer of cement slurry. The top plug is released form the cement head after the sapcer fluid. Most cement heads can hold both the top and bottom plugs. A manifold incorporated into the cement head assembly allows connection of a fluid circulation line.

 

3) Charateristics of Double Plug Cementing Head

1. Compact, easy to connect

2. Indicator monitoring stopper running

3. Body and short sleeve button connected by ladders

4. High strength materials and high thread to ensure it meets quality and performance requirements

5. Manifold connections, as required by the selection union.

 

Cementing head is a manifold system that is installed on the top of the casing which allows the cement slurry to be pumped from the cement unit down any of the type of casing string. The cement head is also used for releasing the top and bottom cement plugs.

 

A “cement head” is screwed into the top casing collar or landing joint, depending on the type of  casing cementing job. The discharge side of the downhole pump and the cement head are connected by a series of articulated or straight sections of high-pressure steel pipe, also known as “treating iron”

 

 

Double plug cementing head

 

Heads capable of storing multiple plugs are preferred over those just carrying single plugs for operational convenience, as the use of more than one plug requires the opening of the head to insert a second (or even a third) plug after circulating the drilling fluid and launching the bottom plug. This allows not only the build-up of gels in the annulus, having an adverse effect on fluid displacement efficiency, but also cement-free fall. The risk of sticking the casing (pipe sticking) is also increased if reciprocation is stopped to allow the insertion of the additional plug (or two).

 

Oil Well 140mm BTC Cementing Head Cementing Tool Dual Plug 0

 

Oil Well 140mm BTC Cementing Head Cementing Tool Dual Plug 1

 

size mm working pressure mpa ID mm Max plug length 1 mm Max plug length 2 mm stop pin type casing thread no
101 35,50 88-90 ≥240 ≥300 single 4TBG
114 97-103 ≥240 ≥300 single 4-1/2 LCSG, 4-1/2 BCSG
127 108-116 ≥260 ≥400 single 5LCSG, 5BCSG
140 119-126 ≥260 ≥400 single 5-1/2 LCSG,5-1/2 BCSG
178 21,35 155-162 ≥290 ≥450 single and double 7 LCSG, 7 BCSG
194 168-177 ≥310 ≥450 single and double 7-5/8 LCSG, 7-5/8 BCSG
219 194-201 ≥310 ≥500 single and double 8-5/8 LCSG, 8-5/8 BCSG
244 220-225 ≥330 ≥550 single and double 9-5/8 LCSG, 9-5/8 BCSG
273 14,21 248-255 ≥360 ≥550 double 10-3/4 LCSG, 10-3/4BCSG
298 274-279 ≥360 ≥550 double 11-3/4 LCSG, 11-3/4 BCSG
340 313-320 ≥410 ≥600 double 13-3/8 LCSG, 13-3/8 BCSG
508 476-286 ≥510 ≥650 double or triple 20 LCSG,20 BCSG

 

NOTE: 公称尺寸- SIZE; 工作压力-WORKING PRESSURE ; 内径-ID ;可容胶塞长度-Max plug length; 挡销形式: stop pin type ;套管螺纹代号:casing thread no;

 

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