Annular BOP

• Categories:
• BOP

• Brand:
• SJ

• Model:
• FH

• API 16A:
• annular

• Update Time:
• 10/31/2012

Detailed Info

In case of blowout and well-sealing is needed, high pressure oil coming from control system enters the bottom closing chamber from bottom inlet to push piston moving upward. The movement of piston forces rubber core to move upward along the sphere surface, then supporting ribs get closer to push the internal rubber moving towards the wellhead center to fulfill the function of sealing drill equipment or the wellhead. When unlocking the seal is needed, hydraulic oil pushes the piston moving downward and the rubber core will reset to its original position under its elastic force.

Structure Characteristics

1. The connection between top cap and housing, top and bottom ends adopt flanges and bolts.

2. Semisphere rubber core has many advantages, such as not easy folding back, big volume of rubber storage. Under the well pressure,the piston pushes the rubber core upward to form a funnel shape. The funnel effect of rubber core increases its sealing performance and life span.

3. Characteristics of the sealing structure

1)The BOP has three important sealing positions: piston external surface seal, piston internal surface seal and mud blocking ring seal.

2)Radial direction cross section of the piston comes of the shape "Z", which makes the piston have short stroke length, low height and big diameter.

Technical specifications

Model Parameters	FH28-21	FH35-21	FH18-35	FH28-35	FH28-35A
Bore Diameter(mm)	280	346	180	280	346
Rated Working pressure (MPa)	21	21	35	35	35
Testing Pressure(MPa)	42	42	70	70	70
Working Temperature (°C)	-29~121
Weight (Kg)	3272	5352	1444	4456	6700
Dimensions(mm)	1032×930	1245×1090	745×788	1135×1090	1270×1220

Motor Reversing Pumping Unit

• Categories:
• Pumping Unit

• Brand:
• SJ

• API 11E:
• high efficiency

• Update Time:
• 10/30/2012

Detailed Info

Motor reversing pumping unit is a high efficiency and low energy consumption product. It employs the intelligent analog and digital control and uses the switched reluctance motor as the prime mover, of which the power factor is cosΦ≈1. As the transmission of the friction wheel is the working mechanism, the mechanical transmission line is short and the efficiency is high, realizing the reversion of the motor. The starting reversion is stable with low impact. The stroke and stroke frequency can be regulated independently and steplessly. The velocity of the up stroke and down stroke of the polished rod can be controlled respectively.

Its mechanical efficiency is about two times that of conventional beam pumping unit. Its system efficiency reaches to 50%, and energy saving rate is about 46%. The product is an ideal pumping unit to replace conventional beam pumping unit.

Technical specifications

Model		8	10	12		14
Max.rated load(Klbf)		≤18	≤22.5	≤27		≤31.5
Stroke Length(in)		≤197 can be regulated steplessly		≤287 can be regulated steplessly
Stroke per minute(SPM)		≤6 can be regulated steplessly		≤5 can be regulated steplessly
Balance type		Symmetry
Reducer	Type	XW8215	XW8225	XW8245	XW8245	XW8255
	Max. torque(Klbf.in)	102	107	107	107	256
	Overall Ratio	59 or 71
Motor	Type	L200	L200B	Y255M-6	Y250M-6	L280
	Rated power(hp)	30	30	41	50	61
	Rotate speed(r/min)	1,000
Total L×H×W		199×157×379	158×201×399	156×201×478		207×276×478
Total weight (lbs)		17,500	17,870	27,560	29,770	31,090

The motor reversing intelligent pumping unit is a mechatronic product of high efficiency and energy-saving. It has a tower-like structure, characterized by steady start-up, highly efficient and energy-saving, intelligent control, safe and convenient, and remote monitoring.

Types of pumping units	Models of pumping units	Standards
API conventional beam pumping unit	C80-C912	API Spec 11E
compound balanced pumping unit	Type 10, 12, 14 and 16	SY/T5044-2003
Double-horsehead beam pumping units	Type6、8、10、12
Reactive Commutation Intelligent Pumping Unit	Type10、12、14	Enterprise standard
Motor-reversing intelligent pumping units	Type8、10、12、14

Parts Of Sucker Rod Pump

• Categories:
• Sucker Rod Pump

• Brand:
• SJ

• Comments:
• Offer parts of sucker rod pump according to the use’s requirements, such as barrels, plungers ,valve balls, seats, etc.

• Update Time:
• 10/29/2012

Detailed Info

The company also can offer parts and components of sucker rod pump according to the use’s requirements, such as barrels, plungers (note: we can also offer Monel plunger), valve balls, seats and cages, etc. the common combinations of the material and surface treatment for the barrel and plunger manufactured in the company are as follows:

1. Nitrided Barrel and Spray Welded Plunger

The nitrided barrel is high in hardness, good in antiwear capacity and long in life (longer than that of the common barrel by 1.2 times).

The spray welded plunger is good in anticorrosion capacity. The welded layer of the plunger is melted together with the metal base, without layer difference of plating plungers and without crusting, flake and pinhole. It can be used in various well conditions.

2. Nickel-phosphor Plated Barrel and Spray Welded Plunger

Nickel-phosphor Plated Barrel is an anti-corrosion barrel. The nickel-phosphor plated layer has a uniform single phase structure, which can resist electrochemical reaction of micro-batteries and the plated layer is lower in porosity, tight in structure and stable in chemical property and it is not easy for the corrosive materials to enter in.

3. Chrome Plated Barrel and Spray Welded Plunger

4. Nitrided Barrel and Chrome Plated Plunger

5. Nickel-phosphor Plated Barrel and Chrome Plated Plunger

The materials used to make valve balls and seats for above 5 combinations of the barrel and plunger are: high-carbon, stainless steel, carbide alloy, ceramic, etc.

Their characteristics are:

1. Stainless steel seat is cheap and is most widely used.

2. Carbide alloy seat is high in hardness, large in density and strong in anti-corrosion capacity and applies to the wells with viscous crude or containing sand.

3. Ceramic seat is higher than that of carbon steel or alloy in anti-impact capacity and strong in anti-corrosion capacity. Its life is about 4.4 times as long as that of the common steel seat.