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Shaanxi Senwell Drilling Equipment Co., Ltd
Jenny(General manager)
Tel:0086-29-85370919
Fax:0086-29-85370919
E-mail:Jennysaless@vip.163.com
                sales@oiltoolsdp.com
Website:Http://www.oiltoolsdp.com
 

Rod Pump

Rod Pump basic infomation

Catalog: Sucker Rod Pump
Keywords: Rod Pump
Tel: 0086-29-85370919
Fax: 0086-29-85370919
E-mail: Jennysaless@vip.163.com
Rod Pump basic infomation

Rod Pump

 

Rod pump is also referred to as "insert pump" as its plunger is attached took and moves up and down with the sucker rod string .It is suitable for reducing the time of workover for deep well as it is not necessary to pull all the tubing out of the well hole when checking the pump, which makes the operation quicker and the service life of tubing longer. The rod pump is in a state of "free hanging", so it is suitable for deviated wells.

 

According to seating mode, the rod pump can be divided into two types: cup hold-down and mechanical hold-down.

According to anchored position, the pump can be divided into two type: hold-down pumps and bottom hold-down pumps which include stationary barrel and traveling barrel types

 

Stationary Heavy Wall Barrel Top Anchor Mech

 

Standard: API SPEC 11B Standard.

 

1.  Hold-down Rod Pump RHAM & RHAC
 
Stationary Heavy Wall Top Anchor Cup Hold-down Rod Pump RHAC
The top anchored pump with stationary barrel is suitable for sand production well since the fluid discharged from the guide cage washes away the sand between tubing and the top of the pump. But, the pump barrel is more subject to inside pressure and tensile load caused by the fluid column, and the plunger clearance will intend to increase during
upstroke so the top anchored pumps are not recommended in deep wells
 
Specification and Parameter
 

Specification

Nominal Pump Bore

Plunger Length m(ft.)

Max. O.D. mm

Rod in

Tubing in

Pump Constant
(m3/d)

Stroke
(m)

20-112RHAC

28(1.12)

1.2-1.8   (4-6)

46.7

7/8

2 3/8

0.92

≤7.5

20-112RHAM

47.6

20-125RHAC

32(1.25)

47.5

3/4

2 3/8

1.14

20-125RHAM

50.2

25-150RHAC

38(1.50)

59.4

3/4

2 7/8

1.64

25-150RHAM

59.5

25-175RHAC

44(1.75)

59.5

3/4

2 7/8

2.24

25-175RHAM

59.5

30-225RHAC

57(2.25)

72.1

3/4

3 1/2

3.69

30-225RHAM

74.6

 

2.   Stationary Heavy Wall Barrel, Bottom Anchor, Cup Seating, Rod pumps RHBC&RHBM
 

Stationary Heavy Wall Barrel, Bottom Anchor, Mech, Seating, Rod pumps RHBM

It is suitable for deep well since the barrel only bears pressure from outside and does not bear tensile load and its clearance change is small. But it is not recommended for extreme sandy conditions since there is no circulation of the well fluid around the outside of the barrel so pump may become stuck in the tubing by packed sand.
 
Specification and Parameter
 

Specification

Nominal Pump Bore

Plunger Length m(ft.)

Max. O.D. mm

Rod in

Tubing in

Pump Constant
(m3/d)

Stroke
(m)

20-112RHBC

28(1.12)

1.2-1.8   (4-6)

46.7

3/4

2 3/8

0.92

≤7.5

20-112RHBM

47.6

20-125RHBC

32(1.25)

47.5

3/4

2 3/8

1.14

20-125RHBM

50.2

25-150RHBC

38(1.50)

59.4

3/4

2 7/8

1.64

25-150RHBM

59.5

25-175RHBC

44(1.75)

59.5

3/4

2 7/8

2.24

25-175RHBM

59.5

30-225RHBC

57(2.25)

72.1

3/4

3 1/2

3.69

30-225RHBM

74.6

 

3.  Traveling Barrel Bottom Anchor Rod Pump(Insert Pump)RHTC, RHTM
 
In this pump, the barrel is attach to, and moves up and down with the sucker rod string. The plunger is connected to the hold down by a hollow pull tube and remains stationary. The traveling barrel pump is recommended for sandy wells since the movement of the traveling barrel keeps the fluid in motion and sand washed down, which minimizes the possibility of and setting around the pump and sticking it. The traveling barrel is particularly recommended for wells being pumped intermittently since the ball in the to cage will seat when the well is shut down, sand cannot settle inside of the pump, The traveling barrel pump is not suitable for gassy wells and viscous fluid wells. It is not recommended for the pumps with long stroke in deep wells, either.
 
Specification and Parameter
 

Specification

Nominal Pump Bore

Plunger Length m(ft.)

Max. O.D. mm

Rod  in

Tubing in

Pump Constant
(m3/d)

Stroke
(m)

20-125RHBC

32(1.25)

1.2~1.8 (4~6)

47.5

3/4

2 3/8

1.14

≤7.5

20-125RHBM

50.2

25-150RHBC

38(1.50)

59.4

3/4

2 7/8

1.64

25-150RHBM

59.5

25-175RHBC

44(1.75)

59.5

3/4

2 7/8

2.24

25-175RHBM

59.5

30-225RHBC

57(2.25)

72.1

3/4

3 1/2

3.69

30-225RHBM

74.6

 

Shaanxi Senwell Drilling Equipment Co.,Ltd    Jenny (General Manager)
Tel:0086-29-85370919     Fax:0086-29-85370919
Email:Jennysaless@vip.163.com     sales@oiltoolsdp.com
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