Wellhead Tools

Wire Line Pressure Control Equipment

1. Brief introduction
   Wire line Pressure Control Equipment is used to flowing oil well, gas well, water injection well and coal seams well for cable logging with pressure or paraffin removal operation, could supply pressure buffer and transition zone for string tools. In operation, the wellhead can be sealed when cable is static and dynamic state with pressure, or closed in the course of overflow and other unforeseen circumstances beyond controlling, to prevent blowout accidents. Operation conveniently and safety reliable.
   The PCE is mainly consists of cable hydraulic seal head, tool catcher, lubricators, Tool Trap (includes of release assly with pressure), Blow Out Preventer, Top& Bottom Sheave, Pressure testing& releasing Assembly, Wellhead crossover flange (crossover sub), Lifting tool, Grease and Hydraulic Control Module，Transport and Storage Frame Skid, Pressure test plugs etc.

2. Structure feature

   • Sealing head apply manual pump to remote hydraulic compress seal stuffing, meanwhile, inject HP & high viscosity grease into space between chock tube and cable by Lincoln pump. Seal stuffing and sealing grease could seal cable by double intentions, which could guarantee operation safety and reliable.
   • Includes of tool catcher and tool trap as double safety structure, in order to avoid string tool drop in well by accidently when run into lubricator.
   • Pressure testing& releasing sub is used for monitoring wellhead pressure, releasing lubricator Residual pressure and pressure self-checking.
   • Lubricator supply pressure buffer and transitional space for string tool, connect by fast union for combination.
   • BOP is necessary wellhead pressure control tool which could prevent blow out accident.
   • Includes of anti-freeze, unfreeze and pressure self-checking system.
   • Equipped with fast pressure testing assly, which could improve PCE seal safety as fixing equipment or assembly & disassembly of lubricators. It help to avoid of second pressure self-checking for whole PCE.
   • Top& Bottom Sheave is made by Aluminum alloy, and has the advantage of preventing cable moved from slot.

3. Technical specification

   Size	Lubricator ID (mm)	Working pressure (MPa)	Seal cable diameter (mm)	Service circumstance	Temperature grade	Thread connection
   DFP6-35/70/105	Ф62	35/70/105	Ф5.6, Ф8, Ф11.8, Ф12.7	Crude oil, water, natural gas (standard, H2S, CO2)	T-20 (-29℃~+121℃)	Fast Union
   DFP7-35/70/105	Ф76	35/70/105

Slickline Pressure Control Equipment

1. Brief introduction
   Slickline Pressure Control Equipment is used to flowing oil well, gas well, water injection well and coal seams well for wire logging with pressure or paraffin removal operation, could supply pressure buffer and transition zone for string tools. In operation, the wellhead can be sealed when wire is static and dynamic state with pressure, or closed in the course of overflow and other unforeseen circumstances beyond controlling, to prevent blowout accidents. Operation conveniently and safety reliable.
   The PCE is mainly consists of Slickline sealing control head, tool catcher, lubricators, Tool Trap (includes of release assly with pressure), Blow Out Preventer, Top& Bottom Sheave, Pressure testing& releasing Assembly, Wellhead crossover flange (crossover sub), Lifting tool, Hydraulic Control Module，Pedal assly, anti-freeze/ unfreeze and pressure self-checking system, Transport and Storage Frame Skid, Pressure test plugs etc.

2. Structure feature

   1). Sealing head apply manual pump to remote hydraulic control, to monitor wellhead seal result and guarantee of operation safety and reliable.
   2). Includes of tool catcher and tool trap as double safety structure, in order to avoid string tool drop in well by accidently when run into lubricator. 3). Lubricator supply pressure buffer and transitional space for string tool, connect by fast union for combination.
   4). BOP is necessary wellhead pressure control tool which could prevent blow out accident.
   5). Includes of anti-freeze, unfreeze and pressure self-checking system, which could supply higher safety if operating in HP & complicated gas well.
   6). Equipped with fast pressure testing assly, which could improve PCE seal safety as fixing equipment or assembly & disassembly of lubricators. It help to avoid of second pressure self-checking for whole PCE.
   7). Top& Bottom Sheave is made by Aluminum alloy, and has the advantage of preventing cable moved from slot.

3. Technical specification

   Size	Lubricator ID (mm)	Working pressure (MPa)	Seal wire diameter (mm)	Service circumstance	Temperature grade	Thread connection
   GFP6-21/35/70	Ф62	21/35/70	Ф1.8~ Ф3.2	Crude oil, water, natural gas (standard, H2S, CO2)	T-20 (-29℃~+121℃)	Fast Union
   GFP7-21/35/70	Ф76	21/35/70

Tubing Cock Valve

1. Brief introduction
   Tubing cock valve is one type of manual control valve which used for open& close string circulating system. Normally, it is used to workover operation, which could prevent blow-out and close internal flowing liquid quickly for production safety.

2. Structure feature
   Tubing plug valve could open/close by rotating external hex socket according to related mark.

3. Technical specification

   OD (mm)	ID (mm)	Length (mm)	Working pressure (MPa)	Thread connection
   Ф95	Ф30	315	35	2 7/8’’TBG or 2 7/8’’EUE
   Ф105	Ф33	320	35
   Ф115	Ф30	265	35
   Ф115	Ф33	290	35	3 1/2’’TBG or 3 1/2’’EUE

Kelly Cock

1. Brief introduction

   Kelly cock is one type of manual control valve which for drill string circulating system, could prevent blow out efficiently. It is divided by upper Kelly cock and lower Kelly cock. Upper Kelly cock is used below tap and above Kelly, lower Kelly cock is used below Kelly and above drill pipe or between above of Kelly protecting sub. Rotating 90 degree by professional wrench to open/close. In drilling operation, connect Kelly cock above and below Kelly could avoid blow-out accident.

2. Structure feature

   Kelly cock sealing is by rigid coordination through ball valve body and ball seat, rubber seal is as assistant. Surface is compressed by spring. When in blow-out and close Kelly cock, pressure in well will force valve key to valve seat. Kelly valve sealing is better as higher of pressure to valve seat.

3. Technical specification

   Upper Kelly cock:

   OD (mm)	Hole ID (mm)	Working pressure (MPa)	Thread connection	Suitable scope
   Ф146	Ф50	35/70/105	4 1/2’’REG-LH	Square Kelly or hexagonal kelly
   Ф200	Ф60	35/70/105	6 5/8’’REG-LH

   Lower Kelly cock:

   OD (mm)	Hole ID (mm)	Working pressure (MPa)	Thread connection	Suitable scope
   Ф105	Ф41	35/70/105	DC31	Square Kelly or hexagonal kelly
   Ф121	Ф50		DC38
   Ф127	Ф50		DC38
   Ф165	Ф61		DC46
   Ф178	Ф71		DC50, 5 1/2’’FH