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© 2014 National Oilwell Varco www.nov.com/Elmar

Elmar Product Line

The grease fills the annular space betweenthe inner wall of the flotube and the outsidesurface of the wireline, forming a liquid seal thatcontains the well fluids while allowing wireline movement.

The Elmar Grease Injection Control Head is supplied with pin threaded connections top and bottom. The upper pin is 2” line pipe for connection of a line wiper. The bottom connection can be mated to a quick-union, or a ball check valve/tool catcher combination. An optional Line Wiper is normally connected on top of Stuffing Box.

When changing line size, a different line size kit is needed for the stuffing box, identified by the linesize code letter. See next page for details.

Recommended flotube clearance + 0.003” to 0.008”.

The Elmar Grease Injection Control Head is designed to create a seal around a moving wireline, allowing intervention access towells under pressure.

Wireline Grease Injection Control Head

Positioned at the uppermost point of the pressure control equipment string, the Elmar Grease Injection Control Head comprises two major sub-assemblies, the stuffing box or pack-off and the flotube assembly.

The stuffing box is designed to pack-off on a stationary wireline by means of a pack-off rubber energised by hydraulic pressure.

Two types of flotube assemblies are available, the “solid” type and the “concentric” type, as described in this data sheet. The concentric flotube assembly is made up of an inner flotube sized to fit tightly around the wireline and an outer sleeve to support the assembly.

To prepare for operations, the wireline is threaded through the components of the Elmar Grease Injection Control Head before the rope socket and wireline head are made-up. When entering a well under pressure, viscous grease is injected into the flotubes at a pressure minimum 20% greater than the existing well pressure.

PART NUMBERS

Part Number No. of Flotubes Working Pressure Srv. Bottom Connection Top Connection Seal Kit

L-979470 3 10,000 psi H2S 2”-10TPI Acme Pin 2” Line Pipe Pin L-979470K

L-978385 4 10,000 psi H2S 2”-10TPI Acme Pin 2” Line Pipe Pin L-978385K

L-970635 5 10,000 psi H2S 2”-10TPI Acme Pin 2” Line Pipe Pin L-970635K

L-971229 6 10,000 psi H2S 2”-10TPI Acme Pin 2” Line Pipe Pin L-971229K

L-971218 1 10,000 psi H2S 2”-10TPI Acme Pin 2”-10TPI Acme Box L-971218K

ORDERING INFORMATION

Part number of Grease Injection Control Head (from table above)

Line size (Kit) to be specified - L971278* L (see table on next page)

Flotube size to be specified (see table on next page)

If dual injection is required, order separately (qty 1) L-971218 in addition to the standard grease head with 1 x manifold

TEST FIXTURE

Part Number Description

L-972410 Test Plug (dummy packer) for Stuffing Box

L-971281 Test Rod Assembly for Stuffing Box, 3/16” - 15/32” line range

L-972264 Test Cap 2”-10TPI Box for Flotube/sleeve connection

ACCESSORIES

Part Number Description

L-971641 Flotube Go-NoGo gauge 0.233” and 0.235”

L-971642 Flotube Go-NoGo gauge 0.237” and 0.240”

Note: Additional sizes available on request.

Note: Parts included in Line Size Kit (1).Seal Kit (O-Ring and BURs) does not include Line Size Kit Parts.

Gland (1)

Line Rubber (1)

Interlocking Seat (1)

Flotube

Injection CheckValve

Additional Flotubeand InjectionCoupling AssemblyL-971218

Ball Check Valve

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Elmar Product Line

ORDERING TABLE* Line Size Code Line Size Gland (1) Line Wiper

Rubber (1)Inter-locking Seat Flotube I.D. Flotube

B 3/16”0.188”(1-18) L-971840 L-972200 L-972240

0.179 L-97010085750.183 L-9761840.186 L-9745700.189 L-9723800.193 L-9745710.196 L-9766960.199 L-976650

C

7/32”0.219”(1-20)(1-22)(2-23)

L-972150 L-972200 L-972250

0.201 L-9771630.204 L-9771670.216 L-9754390.219 L-9754400.222 L-9745720.224 L-9745380.226 L-9711290.228 L-9723700.231 L-9726800.232 L-9780020.235 L-9808490.236 L-9778870.239 L-9778990.240 L-9711300.243 L-9773150.248 L-974573

D 1/4”0.250” L-972160 L-972200 L-972260

0.254 L-9728680.256 L-9745070.258 L-9728690.260 L-9728710.261 L-9734490.262 L-9735710.263 L-9806310.264 L-973572

Wireline Grease InjectionControl Head Continued

OPTIONAL LINE WIPER

Part Number Wire Size

L-831210 3/16” wire

L-831200 7/32” wire

L-831220 5/16” wire

Gland (1)Line Rubber (1)Interlocking Seat (1)

Flotube

Injection Check Valve

Additional Flotubeand Injection CouplingAssembly L-971218

Ball Check Valve

ORDERING TABLE* Line Size Code Line Size Gland (1) Line Wiper

Rubber (1)Inter-locking Seat Flotube I.D. Flotube

E 9/32”0.281” L-971232 L-978180 L-978181

0.287 L-9781750.289 L-9807590.291 L-9807600.292 L-9825170.293 L-9807580.295 L-9713120.298 L-9714360.306 L-979643

F5/16”0.312”(1-32)

L-972170 L-972210 L-972270

0.312 L-9769380.315 L-9765380.316 L-9765390.319 L-9819370.321 L-9762580.326 L-9766050.328 L-9742250.329 L-9739370.332 L-9766060.335 L-9732340.337 L-9766070.341 L-980217

G 3/8”0.375”

L-972180

L-972220 L-972280

0.366 L-9741590.373 L-9741610.376 L-9704290.384 L-9781760.394 L-9812280.397 L-981227

H7/16”0.438”(7-42)

L-972190 L-972230 L-972290

0.399 L-9709460.404 L9804900.407 L9824380.408 L9809480.410 L9824390.411 L-9741620.413 L9824400.416 L-9741630.423 L-9705710.425 L-9705720.427 L-9705730.430 L9824310.433 L-9701060.436 L-9716390.439 L-9823480.442 L-9823490.465 L-981229

J15/32”0.469”(7-46)

L-976291 L-976295 L-976292

0.467 L-9729060.470 L-9812300.472 L-9793880.477 L-9790880.479 L-97010072250.481 L-9806890.483 L-9814700.488 L-9825250.490 L-97010083250.501 L-9825290.504 L-97010048170.523 L-9821430.525 L-9821410.527 L-9821420.529 L-9821440.537 L-982450

Note: Cable grouping is for guidance only.

Note: Parts included in Line Size Kit (1). Seal Kit (O-Ring and BURs) does not include Line Size Kit Parts.