×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

#### Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

# Discharge and intake pressure

## Discharge and intake pressure

(OP)
Dear all

i have a case that well is running with Discharge pressure less than Intake pressure,well is 60 % WC

pi 2960 psi
pd 2881 psi
ti 230 F
tm 275 F

Well is running on 34 A @ 50 hz and flow is mixed of Gases and water,

if we have a case like this, what is the reason that causes Discharge pressure to be less than Intake pressure?

### RE: Discharge and intake pressure

You should define where those are, but I assume you're talking abouit inlet and outlet pressure into a downhole pump?

Flowrate more than the pump can handle?
What were they before?
Flowrate?
Depth of well?
Pressure at the surface?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

### RE: Discharge and intake pressure

The pressure of the column of fluid (including gas content) being lifted up is lighter than the sum of the pressure of the column of fluid being pumped down + bottom hole pressure - flow losses.

When gas content of the produced fluid increases, surface discharge pressures increase, because of less lifted weight in the discharge column and usually a lower frictional flow loss of gas.

Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

### RE: Discharge and intake pressure

So it looks like your pump is actually reducing the flow very slightly, but not really doing anything it would seem...

Maybe it's creating a lower pressure at the well base than would otherwise be the case?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

### RE: Discharge and intake pressure

I thought he was talking about the well inlet and discharge pressures, not the pump pressures.
"The well is running". He does not say "the pump is running".
If its pump pressures, reduce the flow, or increase its speed.

Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

#### Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

#### Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

#### Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a partâ€™s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

# Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!