Analisis perbandingan penggunaan jenis lumpur boran pada sumur-S dan sumur-K di lapangan PDDK-14TRAYEK 12 1/4"
A Analisis perbandingan penggunaan jenis lumpur pemboran dilakukan dengan melihat parameter dari kondisi hole size dan rate of penetration (ROP). Sumur-s dan sumur-k merupakan sumur development yang berada di lapangan PDDK-14 yang terletak di daerah Subang, Jawa Barat. Pada sumur-s menggunakan jenis lumpur water based mud (WBM) yaitu KCL polymer. Sedangakan pada sumur-k menggunakan jenis lumpur pemboran high pressure water based mud (HPWBM) yaitu KLA-Shield. Hasil analisis perbandingan lumpur pada sumur-s dengan sumur-k dilakukan dengan menggunakan alat logging while drilling (LWD) log, dengan mengevaluasi nilai hole size dan rate of penetration (ROP) pada setiap formasi yang ada di trayek 12 ¼ “ . Pada formasi cibulakan di trayek 12 ¼ “ didapatkan nilai ratarata hole size sebesar 12,41 inch untuk sumur-s. Sedangkan pada formasi cibulakan untuk sumur-k didapatkan nilai rata-rata hole size sebesar 12,30 inch. Pada formasi Baturaja di trayek 12 ¼ “ didapatkan nilai rata-rata hole size sebesar 12,43 inch untuk sumur-s. Sedangkan pada formasi Baturaja untuk sumur-k didapatkan nilai rata-rata hole size sebesar 12,30 inch. Berdasarkan penelitian dengan melihat nilai rate of penetration (ROP) pada sumur-s dan sumur-k pada trayek 12 ¼ “ di formasi cibulakan didapatkan nilai sebesar 30,40 meter/hours (m/hr) dan 32,82 meter/hours (m/hr). Sedangkan pada formasi Baturaja di sumur- dan sumur-k didapatkan nilai sebesar 10,05 meter/hours (m/hr) dan 44,33 meter/hours (m/hr). Berdasarkan analisis hole size dan rate of penetration (ROP), maka jenis lumpur kla-shield lebih efektif pada kondisi formasi yang reaktif.
C Comparative analysis of the use of drilling mud types is done by looking at the parameters of the hole size and rate of penetration (ROP) conditions. The S and K wells are development wells on the PDDK-14 field in Subang, West Java. In the wells, using the type of water based mud (WBM), namely KCL polymer. While the well-k uses a type of high pressure water-based mud (HPWBM) drilling mud, namely the KLA-Shield. The results of a comparative analysis of mud in the well-s with the well-k performed by using while logging tool drilling (LWD) logs, to evaluate the value of hole size and rate of penetration (ROP) at every formation in the trajectory 12 ¼ ". In the cibulakan formation on route 12 ¼ "the average hole size is 12.41 inch for the s well. Whereas in the formation of cibulakan for k-wells, the average hole size is 12.30 inch. In the Baturaja formation on route 12 didapatkan "the average hole size is 12.43 inch for the s well. Whereas in the Baturaja formation for the k-well, the average hole size is 12.30 inch. Based on research by looking at the value of the rate of penetration (ROP) in the well-s and the well-k on the route 12 ¼ "in formation Cibulakan obtained a value of 30.40 meters / hours (m / hr) and 32.82 meters / hours (m / hr). Whereas in the Baturaja formation in the wells and wells, the values were 10.05 meters / hours (m / hr) and 44.33 meters / hours (m / hr). Based on the hole size and rate of penetration (ROP) analysis, the type of kla-shield mud is more effective in reactive formation conditions.