System and Method for Handling Pumping Units in Out-Of-Balance Condition
US-2019012492-A1 · Jan 10, 2019 · US
Pumping unit counterweight balancing
US11009022B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11009022-B2 |
| Application number | US-201916522625-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 25, 2019 |
| Priority date | May 7, 2018 |
| Publication date | May 18, 2021 |
| Grant date | May 18, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
A method of balancing a beam pumping unit can include securing counterweights to crank arms, thereby counterbalancing a torque applied at a crankshaft at a maximum torque factor position due to a polished rod load and any structural unbalance. A well system can include a beam pumping unit including a gear reducer having a crankshaft, crank arms connected to the crankshaft, a beam connected at one end to the crank arm and at an opposite end to a rod string polished rod, and counterweights secured to the crank arms, and in which a torque applied at the crankshaft at a maximum torque factor position due to weights of the crank arms, the counterweights and wrist pins equals a torque applied at the crankshaft at the maximum torque factor position due to a load applied to the beam via the polished rod and any structural unbalance.
First claim
Opening claim text (preview).
What is claimed is: 1. A well system, comprising: a beam pumping unit including a gear reducer having a crankshaft, crank arms connected to the crankshaft, a beam connected at one end to the crank arms and at an opposite end to a rod string polished rod, and counterweights secured to the crank arms, and in which a torque applied at the crankshaft at a maximum torque factor position of the crank arms due to weights of the crank arms, the counterweights and one or more wrist pins counterbalances a torque applied at the crankshaft at the maximum torque factor position of the crank arms due to a load applied to the beam via the polished rod and any structural unbalance of the beam pumping unit. 2. The well system of claim 1 , in which the load applied to the beam via the polished rod is an average of a load applied to the beam via the polished rod on an upstroke of the beam pumping unit and a load applied to the beam via the polished rod on a downstroke of the beam pumping unit. 3. The well system of claim 1 , in which the maximum torque factor position of the crank arms is a non-horizontal position of the crank arms. 4. The well system of claim 1 , in which the maximum torque factor position of the crank arms is in an upstroke of the beam pumping unit. 5. The well system of claim 1 , in which the maximum torque factor position of the crank arms is in a downstroke of the beam pumping unit.
Assignees
Inventors
Classifications
- F04B47/14Primary
Counterbalancing · CPC title
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driven by electric motors · CPC title
- E21B43/127Primary
Adaptations of walking-beam pump systems · CPC title
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- What does patent US11009022B2 cover?
- A method of balancing a beam pumping unit can include securing counterweights to crank arms, thereby counterbalancing a torque applied at a crankshaft at a maximum torque factor position due to a polished rod load and any structural unbalance. A well system can include a beam pumping unit including a gear reducer having a crankshaft, crank arms connected to the crankshaft, a beam connected at o…
- Who is the assignee on this patent?
- Weatherford Tech Holdings Llc
- What technology area does this patent fall under?
- Primary CPC classification F04B47/14. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue May 18 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).