QuestionQuestion

Transcribed TextTranscribed Text

1. An oil well, drilled on 80-acre spacing, produces at a rate of 300 STB/D under pseudo-steady-state conditions. Calculate the permeability assuming the following data apply: h 30ft. 1.3 cp B. - 1.50 RB/STB PR - 3200 psia Pus - 2900 psia r - 4 in. S o 2. The permeability of the formation, given in problem 1, was increased during a well treatment to 300 md out to a radius of 16 inches. Calculate the pseudo-steady-state flow rate after the treatment. 3. The flowing wellbore pressure in a well producing from a reservoir above the bubble point has been declining at a constant rate of 1 psi/day. What is the porosity if the flow rate is 200 STB/D? The reservoir characteristics are as follows: A 600 Acres h 40ft Bo = 1.40 RB/STB Ho 0.5 cp Ct = 1.5 x 105 1/psi 4. Number range CHAPTERWells #1, in a new oil reservoir, produced at a constant rate of 400 STB/D. Well #2 in the same reservoir started to produce at a constant rate of 600 STB/D, 50 days after Wells #1 started to produce. Wells #1 production rate was reduced to 300 STB/D after it had produced for 70 days. Well #2 production rate was reduced to 400 STB/D after it had produced for 30 days. The reservoir data are as follows: k 50 md h 50ft. Q 0.15 B0 = 1.50 RB/STB Ho =0.75cp 1.5x 105 1/psi P1 = 4000 psia rw = Tw2 =6 inches S1=52=0 Distance between the Wells = 2000 ft. Distance to the Boundary = 10,000 ft. a. What was the pressure in Well #2 before it started to produce? b. What was the pressure in Well #1 after it had produced for 70 days? c. What was the pressure in Well #2 after it had produced for 30 days? d. What was the pressure in Well #1 after it had produced for 100 days?

Solution PreviewSolution Preview

These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice. Unethical use is strictly forbidden.

    By purchasing this solution you'll be able to access the following files:
    Solution.docx.

    $20.00
    for this solution

    or FREE if you
    register a new account!

    PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

    Find A Tutor

    View available Petroleum Engineering Tutors

    Get College Homework Help.

    Are you sure you don't want to upload any files?

    Fast tutor response requires as much info as possible.

    Decision:
    Upload a file
    Continue without uploading

    SUBMIT YOUR HOMEWORK
    We couldn't find that subject.
    Please select the best match from the list below.

    We'll send you an email right away. If it's not in your inbox, check your spam folder.

    • 1
    • 2
    • 3
    Live Chats