CEMENTING HEAD

CEMENTING HEAD

ACT Cementing Head is used for cementing the annular space between casing and bore hole during 2nd stage of well construction cycle. The Cementing Head is employed to connect the pumps of the cementing trucks to the casing string and provides access for insertion of the cementing plugs.

ACT’s Cementing Heads are available in sizes 4 1/2 ” to 20”, for working pressure of 2,000 to 10,000 PSI. Cementing Head sizes & working pressures are inversely related. Generally for smaller sizes, mare working pressure and for larger sizes, less working pressure are the requirements. Cementing Heads could be of single plug or double plug type. Caps are Acme threaded or quick lock type and fitted with Swivel Chain Assembly. The double plug cementing head has a three valve manifold and two plunger assembly. Cementing Heads are manufactured from solid forged rounds of alloy steels AISI 4130/4140/ 4145 HEN-19 or equivalent material and are fully heat treated.

CEMENTING OPERATIONS

ACT Cementing Head is suitable for carrying out single stage as well as double stage cementing operations. It is provided with the following features:

  • Indicators that show when the top plug passes into the casting

  • Simple in operation and provides easy loading of plugs

  • Having manifold with low-torque plug valve

  • Provides continuous operation

  • The plug container holds one or two plugs, the top plug and the bottom plug. The double plug container has a three in-torque valve manifold and a two plunger assembly

  • The length of plug containers are made to accommodate the standard length of plugs

  • The cap is available with ACME thread and with lifting chain for lifting the plug

  • Adapters are available with all casing threads and buttress threads

  • The standard adapters have a 6 inch tong space with thread protectors

  • The Hammer Unions used in manifolds are ACT’s make

CEMENTING MANIFOLDS

Cementing Manifolds are supplied with Cementing Heads or alone as per customer preference. It is an assembly of unions, plug valves, tee, nipples etc. These can be supplied in any size up to pressure ratings of I0,000 PSI pressure.

DIMENSIONAL DATA FOR DOUBLE PLUG CEMENTING HEAD
PART NO. Casing SIZE  O. D. A+ 1/2 CAP O.D. B + 1 /8 PLUG CENTER I.D. C + 3 /8 PLUG INSERT O.D. D + 1 /8 THROAT I.D. E + 1 /8 NIPPLE I.D. F + 6.0 MADE UP LENGTH G + 1.5 DISTANCE BETWEEN PLUNGER H + 4.0 CLEARANCE ABOVE TOP PLUNGER I + 1 /2 PLUNGER CLEARANCE J + 1 /2 PLUNGER CLEARANCE +1.5 K +1.5 L   + 1.5  M +1.5  N
50511900 4.1/2 8.0 4.81 2.50 4.92 3.92 59.00 10.62 19.53 1.56 1.47 11.50 9.0 12.5 14.00
50509700 5.1/2 8.66 5.75 3.25 5.25 4.67 60.12 11.12 20.19 2.50 1.94 11.81 9.29 13.0 14.33
50509900 7 11.0 7.20 4.25 6.70 5.92 60.12 11.12 20.19 2.07 2.66 11.81 9.29 13.0 14.33
50511600 7.5/8 11.5 7.81 4.75 7.25 6.37 60.12 11.62 20.19 2.73 2.97 11.81 9.00 12.5 14.33
50511400 8.5/8 12.5 8.81 5.50 8.25 7.51 60.12 11.62 20.19 3.73 3.47 11.5 9.50 13.50 14.50
50510100 9.5/8 13.80 9.76 6.75 9.20 8.53 63.74 12.60 20.43 4.65 3.94 12.00 10.00 14.48 15.00
50511200 10.3/4 14.5 10.87 8.00 10.31 9.56 63.74 13.62 20.50 5.83 4.50 12.50 10.5 15.5 16.00
50511000 11.3/4 15.5 11.87 7.75 11.31 10.77 64.00 13.62 21.00 6.89 5.00 12.50 10.5 15.5 16.00
50510300 13.3/8 16.92 13.41 10.00 12.88 12.35 69.80 14.25 22.95 8.31 5.77 14.17 10.50 16.14 16.65
50510700 16 19.68 15.90 12.50 15.34 15.00 83.97 20.40 29.40 9.56 7.01 14.97 12.29 22.28 17.97
50510500 18.5/8 23.0 18.62 15.0 18.0 17.25 93.0 21.50 30.20 9.76 8.31 16.50 14.0 23.50 19.50
50510900 20 24.0 20.0 16.5 19.44 18.73 93.0 21.50 30.20 9.76 9.00 16.50 14.0 23.50 19.50

NOTE: 

  • ACT reserves right to alter the design data if required

  • All dimensions are in inches

  • For other sizes & for single plug Cementing Head sizes please contact ACT

  • For nomenclature refer to the diagram on the next page

NO. DESCRIPTION
1 BODY
2 CHAIN WITH SWIVEL ASSY
3 CAP
4 SEAL METAL SEAL
5 PLUNGER ASSY
6 INDICATOR ASSY
7 ADAPTOR
8 CEMENTING MANIFOLD