KSQR-Design Part 1 Flashcards
What are some important job and well criteria to confirm with the company man on location just prior to a frac job?
o Casing size, burst/collapse pressure
o Well head size
o Other things
What are 2 of the 4 required items on the job program or procedure at an absolute must
- The expected volumes
- The expected densities
- The treating rates
- The expected pressures based off simulated cades
How do you as the engineer establish that the job about to be pumped is a client-approved job design? What are some ways to document this approval?
Answer (general concepts): First we need to establish that the engineer knows that the client needs to have a copy of the program or procedure. This is easy to do by checking to see if the client has a copy which matches the same version number they have. Also verbally going over the key points can help verify this and give a clear indication that you are providing what the client wants. Often following up a phone call with an email will provide documentation for you if need be with timestamps Making sure this copy is in the job packet is also a key point Finally ensuring that the client signs the contract will give you verification for later on.
Who is to review your job design before it is finalized?
Line management and/or a peer (FE)
What is the proper sequence for mixing a cross linked fluid in the lab?
water, gelling agent, additives (surfactants, non-emulsifiers, etc.), cross-linker, breaker
Where would you locate information regarding lab procedures if you didn’t know them or this was a new fluid system you have never seen before?
The FE should name a few of the following:
- The fluid manual via InTouch
- Contact your local engineering support (DTE, Lab Manager..)
- Research the product champions and contact them
- Ask via the various SIGs/Bulletin Boards.
Is it acceptable to use samples in the lab to test with, in particular if it is a common chemical that doesn’t really have an impact on fluid performance such as clay stabilizer?
Answer: No, you should never use lab samples as all samples used in the lab to test with are supposed to be a representative sample of what is going out to the field.
A new shipment of Y1 is received from somewhere on the east coast whereas normally it is obtained from Benchmark. The bulk plant brings it in for QA/QC and it is shown to be of the wrong concentrations via titration. How do you determine where the sample came from if it is now 4 weeks later?
We should always be recording lot numbers that come from the warehouse, these can be traced back to the delivery date and the supplier.
How often do we calibrate the lab equipment?
At least annually.
Which types of jobs/situations require lab tests for breakers (Name 3)?
- Jobs above 180F
- A new client
- A new formation
- A new technology
- A new product
True or false, a job which is pumping an NT5 product at 100 deg F does not require a breaker test?
Answer: False, it is a new technology even though it is below the 180F requirement
Why is it necessary to have a sample of water from the job to perform testing with?
Answer: Because water quality varies from client to client and could contain something which has an adverse effect on fluid quality. Properties such as hardness, pH, iron, calcium, magnesium, bi-carbs, etc. all have an impact on measurements from hydration times to fluid stability. Therefore it is a requirement to have sample water from the job to test with.
Is it necessary to note on the lab report that BOTH the dry adds and location water were used if it is just plain J218 that is all from the same lot we have been using?
Yes, all adds and water being used on the job should be incorporated in the lab testing and therefore noted on the lab test report.
