Desain Komplesi Sumur Sour Gas; Sebuah Study Kasus

Abstract

<p align="center"><strong>Abstrak</strong></p><p>Desain komplesi harus mempertimbangkan beberapa parameter dari sumur, meliputi tekanan, temperatur, jenis fluida yang diproduksikan dan laju alir produksi sumur tersebut, dimana desain harus tahan terhadap beban yang dapat terjadi selama usia sumur. Jenis fluida yang dihasilkan berperan penting dalam pemilihan material, terutama untuk gas asam yang mengandung konsentrasi H<sub>2</sub>S dan CO<sub>2</sub> yang tinggi. Analisa pemilihan material tubing, jenis packer dan aksesoris pelengkap dianggap perlu untuk memastikan bahwa material dan desain dapat menahan semua beban yang mungkin terjadi selama usia sumur.</p><p>Setelah desain secara konseptual ditentukan, maka desain detail secara keteknikan dapat dilakukan. Pemilihan material dan desian komplesi sumur didasarkan pada kondisi sumuran dengan menggunakan beberapa metode, seperti <em>stress analysis, triaxial stress analysis </em>dan<em> tubing movement analysis</em>. Material yang terpilih kemudian diuji dengan kondisi masa produksi sumur dan selama tahap instalasi untuk melihat integritas sistem. Tubing <em>25CRW-80, Retrievable Packer</em><em> </em>dengan<em> </em><em>long locator seal bore</em><em> complete with Perfluoro Elastomers</em><em>,</em><em> Tubing Retrievable </em><em>SCSSV </em><em>(Surface Controlled Sub-Surface Safety Valve) dan 25CR </em>aksesoris komplesi dapat menahan semua kemungkinan beban selama siklus dan usia sumur.</p><p>Kata kunci: gas asam, desain, komplesi, material.</p><p> </p><p align="center"><strong><em>Abstract</em></strong></p><p><em>Well completion design is an important aspect in oil or gas well before the production phase. Completion design </em><em>should </em><em>consider some</em><em> crucial</em><em> parameters of the well including pressure, temperature, type of produced fluid and the flow rate of the well, where the design should last and overcome all of disturbance that migh occurs during well life </em><em>cycle</em><em>.</em><em> </em><em>The type of </em><em>produced </em><em>fluid</em><em> plays an important roles in material selection, especially </em><em> for sour gas that contains high concentration of H<sub>2</sub>S and CO<sub>2</sub>. Analyzing the tubing material</em><em> selection</em><em>, type of packer and completion accessories is considered necessary</em><em> to ensure that the materials and design could withstand all the loads during well life. </em></p><p><em>After conceptual completion design is define, then detailed engineering design is proceed. Material selection and completion design </em><em> is based on the condition of the well by using several methods, such as stress analysis, triaxial stress analysis and tubing movement analysis. The selected material</em><em>s</em><em> </em><em> </em><em> then tested by the well production condition and during the installation phase to see the integration of the system. </em><em> Tubing 25CRW-80, Retrievable Packer</em><em> with long locator seal bore</em><em> complete with Perfluoro Elastomers</em><em>,</em><em> Tubing Retrievable </em><em>SCSSV </em><em>(Surface Controlled Sub-Surface Safety Valve) and 25CR completion accessories could withstand all load possibilities for the well life cycle.</em></p><p><em>Keywords</em><em>:</em><em> Sour Gas, Completion, Design, Material. </em><em></em></p>