Does well head pressure blow reservoir fracturing pressure
Does well head pressure blow reservoir fracturing pressure
(OP)
Hi,
Can some one advice on fracturing pressure and well head pressure because of produced water is being injected in injection well and planing section give maximum well head pressure value but they never give fracturing pressure.
What complications will be faced if pressure is more than reservoir fracturing pressure.
Thanks
10815l
Can some one advice on fracturing pressure and well head pressure because of produced water is being injected in injection well and planing section give maximum well head pressure value but they never give fracturing pressure.
What complications will be faced if pressure is more than reservoir fracturing pressure.
Thanks
10815l
RE: Does well head pressure blow reservoir fracturing pressure
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"
RE: Does well head pressure blow reservoir fracturing pressure
The question is regarding the water injection (flooding) for keeping the reservoir pressurized. The problem is how to determine the maximum operating pressure. I think I can't go more than the reservoir fracturing pressure because of high pressure can damage the reservoir characteristics.
Thanks
10815l
RE: Does well head pressure blow reservoir fracturing pressure
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"
RE: Does well head pressure blow reservoir fracturing pressure
A 10,000 injection well will have a frack pressure of 10,000 psi. With an 80% derating, the maximum allowable pressure is 8000 psi at the bottom of the hole. saturate brine with a .52 psi per foot (10.0 pound brine)creates 5200 psig. so 8000 - 5200 = 2800 psig at the surface.
RE: Does well head pressure blow reservoir fracturing pressure
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"
RE: Does well head pressure blow reservoir fracturing pressure
RE: Does well head pressure blow reservoir fracturing pressure
Have you seen where we inject in the San Juan Basin? In Colorado it is the Mesaverde which is classed as "tight gas" interbedded with several shale members. In New Mexico it is the usually the Entrada which is just about as tight as sandstone gets. Mostly they don't let us use "high porosity high permeable rock"
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"
RE: Does well head pressure blow reservoir fracturing pressure
we have two types of injection wells, one is -tive pressure (Vaccume) and other is positive pressure and maximum well head pressure is 700 psig. I would like to determine operating pressure as my company decided to replace the existing corroded aged pipeline(40 year old). my problem is that, no ready information is available on the previous design conditions.
To set up new design basis, I want to understand the reservior fracturing pressure so i can determine the maximum operating pressure.
Thanks for sahring valueable information and updating my knowledge.
101815L
RE: Does well head pressure blow reservoir fracturing pressure
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"
RE: Does well head pressure blow reservoir fracturing pressure
RE: Does well head pressure blow reservoir fracturing pressure
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"
RE: Does well head pressure blow reservoir fracturing pressure
Talk to your geologist and they will give you the expected formation fracture pressure either based off of a step rate test from that well or from offset data. You should be able to get a decent idea of what the operating pressure used to be based on the specs of the old pipeline, pumps and pop valves.
In an older field your reservoir pressure is likely significantly lower than the frac pressure, so it probably won't even be an issue.