AL FATTAH, DAFA (2024) EVALUASI PELAKSANAAN STIMULASI HYDRAULIC FRACTURING PADA BATUAN SANDSTONE DI SUMUR DF-25 LAPANGAN “AFT”. Other thesis, UPN Veteran Yogyakarta.
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Abstract
vi
RINGKASAN
EVALUASI PELAKSANAAN STIMULASI HYDRAULIC
FRACTURING PADA BATUAN SANDSTONE DI SUMUR DF-
25 LAPANGAN “AFT”
Oleh
Dafa Al Fattah
NIM: 113200143
(Program Studi Sarjana Teknik Perminyakan)
Sumur DF-25 merupakan sumur yang terletak pada Lapangan “AFT”. Lapisan
produktif pada sumur tersebut terletak pada Formasi Talang Akar yang berlitologi
sandstone dengan kedalaman 2493 – 2498 m MD. Tidak adanya aliran fluida ke
permukaan akibat permeabilitas yang tergolong rendah dengan nilai yang hanya
sebesar 10 mD melatarbelakangi pelaksanaan hydraulic fracturing pada sumur ini.
Suatu evaluasi pasca pelaksanaan hydraulic fracturing diperlukan untuk meninjau
tingkat keberhasilan pelaksanaan hydraulic fracturing pada sumur DF-25.
Tahapan evaluasi yang dilakukan pada sumur DF-25 diawali dengan pengumpulan
data, yang meliputi data reservoir, produksi, komplesi sumur, mekanika batuan,
serta post job report. Sementara evaluasi pelaksanaan hydraulic fracturing
dilakukan dengan tahapan yang diawali dari perencanaan, kemudian dilanjutkan
mengevaluasi operasi serta hasil stimulasi hydraulic fracturing. Perencanaan
hydraulic fracturing, meliputi perhitungan geometri rekahan, penentuan fluida
perekah, dan pemilihan proppant. Evaluasi operasi hydraulic fracturing, meliputi
step rate test, minifrac, dan main frac. Evaluasi hasil stimulasi hydraulic fracturing
dilakukan dengan mengevaluasi geometri rekahan serta performa produksi sumur.
Berdasarkan perhitungan manual, diperoleh model geometri rekahan metode PKN
2D, dengan panjang rekahan 292,27 ft; tinggi rekahan 11,48 ft; lebar rekahan 0,953
inch; dan konduktivitas rekahan 31582,4 mD ft. Fluida perekah yang digunakan,
berupa fluida berjenis HT-4541 serta proppant berjenis CarboLITE 20/40. Operasi
hydraulic fracturing pada sumur DF-25 dilakukan dengan memompakan volume
slurry sebanyak 13106 gal. Hasil stimulasi hydraulic fracturing pada sumur DF-25
dinyatakan berhasil ditinjau peningkatan permeabilitas rata-rata dari 10 mD
menjadi 104 mD serta productivity index yang meningkat 5,25 kali. Namun, laju
produksi optimum pasca pelaksanaan hydraulic fracturing pada sumur DF-25
sebesar 3,5 bopd masih dibawah economic limit (q limit) sehingga tidak ekonomis.
Kata kunci: Hydraulic Fracturing, Sandstone, Proppant, Productivity Index
vii
ABSTRACT
EVALUATION OF THE IMPLEMENTATION OF HYDRAULIC
FRACTURING STIMULATION ON SANDSTONE ROCK IN THE
DF-25 WELL "AFT" FIELD
By
Dafa Al Fattah
NIM: 113200143
(Petroleum Engineering Undergraduated Program)
DF-25 well is a well located in the “AFT” Field. The productive layer in the well
is located in the Talang Akar Formation wth sandstone lithology which a depth of
2493 – 2498 m MD. The absence of fluid flow to the surface due to low permeability
with a value of only 10 mD is the background for the implementation of hydraulic
fracturing in this well. A post-implementation evaluation of hydraulic fracturing is
needed to review the success of hydraulic fracturing implementation in the DF-25
well.
The hydraulic fracturing evaluation stage for the DF-25 well began with data
collection, which included reservoir data, production, well completion, rock
mechanics, and post job reports. Meanwhile, the evaluation of the implementation
of hydraulic fracturing was carried out with stages that began with planning, then
continued to evaluate the operation and results of hydraulic fracturing stimulation.
Hydraulic fracturing planning includes calculating fracture geometry, determining
fracturing fluid, and selecting proppant. Evaluation of hydraulic fracturing
operations includes step rate test, minifrac, and main frac. Evaluation of hydraulic
fracturing stimulation results is carried out by evaluating fracture geometry and
well production performance.
Based on manual calculations, a fracture geometry model of the PKN 2D method
was obtained, with a fracture length of 292,27 ft; fracture height of 11,48 ft;
fracture width of 0,953 inches; and fracture conductivity of 31582,4 mD ft. The
fracturing fluid used was HT-4541 fluid and CarboLITE 20/40 proppant. The
hydraulic fracturing operation on the DF-25 well was carried out by pumping a
slurry volume of 13106 gal. The results of hydraulic fracturing stimulation on the
DF-25 well were declared successful in terms of increasing the average
permeability from 10 mD to 104 mD and the productivity index increasing by 5,25
times. However, the optimum production rate after hydraulic fracturing on the DF-
25 well of 3.5 bopd is still below the economic limit, so it’s not economical.
Keywords: Hydraulic Fracturing, Sandstone, Proppant, Productivity Index
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Hydraulic Fracturing, Sandstone, Proppant, Productivity Index |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Yuli |
| Date Deposited: | 05 Sep 2024 01:16 |
| Last Modified: | 05 Sep 2024 01:16 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/41001 |
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