Horizontal Well Fracturing Pumping Wireline Perforation Wellhead Pressure Control Equipment

Duringperforation and fracturing operation of the horizontal well, the major functionof the wireline pressure control equipment is the fracturing truck hydraulicallypumping the perforating gun and the bridge plug into the downhole horizontalsegment, after perforation don't blow off, upward pull the wireline andperforating gun, after complete one section, change gun and shot, under pressurerunning in a new horizontal segment again, in such a continuous perforation butdon't blow off cyclic process, dynamic and static to seal the wellhead, controlthe wellhead pressure, providing pressure buffer zone and transition area to thebridge plug and the perforating gun string. At the same time, it can make surethe wellhead is closed when there are accidental conditions on the wellheadduring operation, thereby preventing gas blowout accidents.

(1)wireline diameter φ11.8mm,φ8mm(suitable forφ5.6-12.7mm)

(2)drift diameter of lubricator φ120mm

(3)working pressure 70MPa

(4)intensity test pressure 105MPa

(5)sealing manner choke line + inject grease + rubber packing seal

(6)connection manner of lubricator Union connection

(7)length of lubricator 21m(2m×10pcs+1m×1pcs or by putting together various kindsof length specifications)

(8)ram type of bop three-level ram, first-level whole sealing, two-level semi-closed wireline ram between which can inject grease

(9)connection manner with wellhead Union crossover flange connection (5-1/2" casingbraden head flange)

(10)service environment H2S/STD

(11)working temperature -29°C ~ +121°C

(12)operationcontrol manner remote hydraulic control

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