Easy change pump plunger

Patent metadata

Field	Value
Publication number	US-11560888-B2
Application number	US-201916411894-A
Country	US
Kind code	B2
Filing date	May 14, 2019
Priority date	May 14, 2019
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

A clamp comprising a first contact surface perpendicular to a central axis of the clamp and a second contact surface tapered relative to a central axis of the clamp, whereby the clamp allows for concentric or non-concentric mating between a first component and a second component such that, when rigidly held together by the clamp such that the first contact surface of the clamp contacts a portion of the first component and the second contact surface of the clamp contacts a portion of the second component, a central axis of the first component is parallel to or coincident with a central axis of the second component.

First claim

We claim:

1. A reciprocating element assembly comprising:
a reciprocating element adapter having a reciprocating element end opposite a reciprocating element clamp end;
a reciprocating element, wherein the reciprocating element is cylindrical and comprises a reciprocating element adapter end and a front end, wherein the reciprocating element adapter end of the reciprocating element is opposite of the front end of the reciprocating element, and wherein the reciprocating element adapter end of the reciprocating element is threadably coupled to the reciprocating element end of the reciprocating element adapter, and
a reciprocating element clamp, wherein the reciprocating element clamp has a first contact surface perpendicular to a central axis of the reciprocating element clamp and a second contact surface tapered relative to the central axis of the reciprocating element clamp, and wherein the reciprocating element clamp is configured to couple a first component and a second component via a direct contact of the first contact surface of the reciprocating element clamp with a portion of the first component and a direct contact of the second contact surface of the reciprocating element clamp with a portion of the second component,
wherein the reciprocating element adapter is the first component or the second component, and
wherein: (a) the reciprocating element end of the reciprocating element adapter and the reciprocating element adapter end of the reciprocating element are threaded, whereby, in an assembled configuration of the reciprocating element assembly, the reciprocating element adapter end of the reciprocating element is threadably coupled with the reciprocating element end of the reciprocating element adapter via threads, or (b) wherein the reciprocating element end of the reciprocating element adapter is threadably coupled to the reciprocating element adapter end of the reciprocating element via a threaded stud.

2. The reciprocating element assembly of claim 1 , comprising (b), wherein the reciprocating element end of the reciprocating element adapter is threadably coupled the reciprocating element adapter end of the reciprocating element via the threaded stud.

3. The reciprocating element assembly of claim 1 , wherein the front end of the reciprocating element comprises one or more engagement elements, whereby the reciprocating element is separable from the reciprocating element adapter by engaging the front end of the reciprocating element, leaving the reciprocating element adapter coupled to the second component by the reciprocating element clamp.

4. A pump fluid end comprising the reciprocating element assembly of claim 1 .

5. A wellbore servicing pump comprising:
a pump fluid end comprising the reciprocating element assembly of claim 1 in an assembled configuration, wherein the reciprocating element adapter is the first component and a pushrod of a power end is the second component, wherein, in the assembled configuration, the reciprocating element adapter end of the reciprocating element is coupled to the reciprocating element end of the reciprocating element adapter, and wherein the reciprocating element clamp couples the reciprocating element clamp end of the reciprocating element adapter in contact with a reciprocating element clamp end of the pushrod of the power end, whereby a central axis of the reciprocating element is parallel to or coincident with a central axis of the pushrod; and
the power end, wherein the power end is operable to reciprocate the reciprocating element within a reciprocating element bore of the pump fluid end.

6. The wellbore servicing pump of claim 5 , wherein the pump fluid end is a concentric bore pump fluid end, or a cross-bore pump fluid end.

7. A method of servicing the wellbore servicing pump of claim 5 , the method comprising:
accessing the front end of the reciprocating element via an access port on a side of the pump fluid end proximal the front end of the reciprocating element;
detaching the reciprocating element from the reciprocating element adapter and removing the reciprocating element from the pump fluid end via the access port, leaving the reciprocating element clamp end of the reciprocating element adapter in contact with the reciprocating element clamp end of the pushrod and aligned with the reciprocating element clamp end of the pushrod;
performing a maintenance on the pump fluid end; and
reattaching the reciprocating element previously removed from the pump fluid end to the reciprocating element adapter via the access port or attaching another reciprocating element to the reciprocating element adapter via the access port.

8. The method of claim 7 , wherein the servicing of the wellbore pump is effected without accessing the pump power end.

9. The method of claim 7 , wherein performing the maintenance on the pump fluid end comprises: repacking the reciprocating element bore, replacing the reciprocating element, replacing a suction valve body, replacing a suction valve seat, replacing a discharge valve body, replacing a discharge valve seat, or a combination thereof.

10. The method of claim 7 , wherein detaching the reciprocating element from the reciprocating element adapter comprises unthreading the reciprocating element from the reciprocating element adapter, and wherein reattaching the reciprocating element previously removed from the pump fluid end to the reciprocating element adapter via the access port or attaching the another reciprocating element to the reciprocating element adapter via the access port comprises threadably coupling the reciprocating element adapter end of the reciprocating element or a reciprocating element adapter end of the another reciprocating element with the reciprocating element end of the reciprocating element adapter.

11. The method of claim 10 , wherein reattaching the reciprocating element previously removed from the pump fluid end to the reciprocating element adapter via the access port or attaching the another reciprocating element to the reciprocating element adapter via the access port does not comprise recentering the reciprocating element or the another reciprocating element to ensure that the central axis of the reciprocating element or the another reciprocating element is parallel to or coincident with the central axis of the pushrod.

12. A method of servicing a wellbore, the method comprising:
fluidly coupling a pump to a source of a wellbore servicing fluid and to the wellbore, wherein the pump comprises:
a pump fluid end and a power end, wherein the pump fluid end comprises:
a reciprocating element assembly comprising a reciprocating element adapter having a reciprocating element end opposite a reciprocating element clamp end;
a reciprocating element, wherein the reciprocating element is cylindrical and has a reciprocating element adapter end and a front end, wherein the reciprocating element adapter end of the reciprocating element is opposite of the front end of the reciprocating element, and wherein: (a) the reciprocating element adapter end of the reciprocating element and the reciprocating element end of the reciprocating element adapter comprise threads, such that the reciprocating element adapter end of the reciprocating element is threadably coupled to the reciprocating element end of the reciprocating element adapter via the threads, or
(b) the reciprocating element adapter end of the reciprocating element is threadably coupled to the reciprocating element end of the reciprocating element adapter via a threaded stud; and a reciprocating element clamp, wherein the reciprocating element clamp has a first contact surface perpendicular to a central axis of the recip

Assignees

• Halliburton Energy Services Inc

Inventors

• Hurst Justin Lee
• Olis James Alan

Classifications

• F04B7/0092

  for oscillating distribution members · CPC title

• F15B13/0807

  Manifolds · CPC title

• F04B53/22 Primary

  Arrangements for enabling ready assembly or disassembly · CPC title

• F04B53/1087

  Valve seats · CPC title

• F04B1/053

  with actuating or actuated elements at the inner ends of the cylinders · CPC title