Novrianti Novrianti, Novrianti
Fakultas Ilmu Pendidikan Jurusan Teknologi Pendidikan Universitas Negeri Padang, Jl. Hamka Air Tawar, Padang

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An Experimental Study on Effect of Palm – Shell Waste Additive to Cement Strenght Enhancement Novriansyah, Adi; Novrianti, Novrianti; U, Mursyidah; Hadiguna, Sepria Catur
Journal of Geoscience, Engineering, Environment, and Technology Vol 2 No 1 (2017): JGEET Vol 02 No 01 : March (2017)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.486 KB) | DOI: 10.24273/jgeet.2017.2.1.33

Abstract

Enhancing the cement strength through attaching chemical additive has been popular to meet the required condition for a particular well-cementing job. However, due to a low oil-price phenomenon, pouring and additive should be reconsidered because it can raise the cost and make the project become uneconomic. Another additive material in nanocomposite form will be introduced through this experimental study. The nanocomposite material consist of silica nanoparticle, known as “Nanosilica” and a palm-shell-waste, which is abundant in Indonesia. Before making a nanocomposite, the palm-shell should be burned to obtain a charcoal form, ground and sieved to attain a uniform size.   The study focuses on the two parameters, compressive strength and shear bond strength, which can reflect the strength of the cement. These values are obtained by performing a biaxial loading test to the cement sample. Various samples with different concentration of nanocomposite should be prepared and following the mixing, drying, and hardening process before the loading test is carried out. The result from the test shows a positive indication for compressive strength and shear bond strength values, according to the representative well cementing standards. Increasing the nanocomposite concentration on the cement will increase these values. Furthermore, an investigation on the temperature effect confirms that the sample with 700oC burning temperature have highest compressive-strength and shear-bond-strength values. This is a potential opportunity utilizing a waste-based material to produce another product with higher economic value.
PENGEMBANGAN COMPUTER BASED TESTING (CBT) SEBAGAI ALTERNATIF TEKNIK PENILAIAN HASIL BELAJAR Novrianti, Novrianti
Lentera Pendidikan Vol 17, No 1 (2014): Jurnal Lentera Pendidikan
Publisher : UIN Alauddin Makassar

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Abstract

Abstrak: Penelitian ini bertujuan untuk menghasilkan produk pelaksanaan evaluasi ber­ban­tuan komputer atau computer based testing (CBT) sesuai kriteria kelayakan media dan materi melalui validasi beberapa ahli dan uji coba produk. Model penelitian pengembangan ini adalah model prosedural dengan subjek penelitian 4 respon­den yang terdiri dari dua orang validator ahli media dan dua orang validator ahli materi dan 1 orang guru. Instrumen yang digunakan dalam penelitian ini adalah dokumentasi, format penilaian dengan kriteria yang meliputi penilaian aspek isi materi berupa tes pilihan ganda dan penilaian aspek media. Angket diguna­kan dalam pelaksanaan uji coba untuk melihat kemudahan bagi subjek coba meng­gu­na­kan produk CBT. Data dianalisis secara deskriptif kuantitatif untuk menge­ta­hui kualitas produk CBT. Hasil analisis menunjukkan bahwa produk CBT berada pada kategori sangat  baik (89%), untuk aspek ini termasuk dalam kategori sangat baik, dan dari aspek media termasuk kategori juga sangat baik. Hasil analisis berdasarkan uji coba produk juga berada pada kategori sangat baik. Hasil tersebut menunjukkan bahwa produk CBT ini layak digunakan sebagai media alternatif untuk memecahkan permasalahan pelaksa­naan evaluasi pem­be­lajaran.Abstract: This research aimed at creating a product for conducting evaluation using com­puter or it is called computer based testing (CBT). It was made based on the appropriate characteristics of media and material, and was validated by some experts and by conducting a product trial. The model of this developmental research was a procedural model with 4 respondent, two experts of media validator, two experts of material validator, and one teacher. The instruments used in this research were documentation, evaluation  format with the chriteria consisted of material content assessment in the form of multiple choice and assessment of media aspect. The questionnaire used in the trial is to see the easiness of the subjek to use CBT product. The data were analized quatitatively descriptive to find out the quality of the CBT product. The result showed that the CBT product was at the level of very good cathegory (89%), and the media aspect was also in the very good cathegory. The result of the  analysis on the product trial showed that CBT product was appropriate to be used as an alternatif media to solve the problem of conducting learning evaluation. 
Analyzing The Statistics Function For Determination Of Oil Flow Rate Equation in New Productive Zone Herawati, Ira; Rita, Novia; Novrianti, Novrianti; Taufand, Rosalia M
Journal of Geoscience, Engineering, Environment, and Technology Vol 2 No 1 (2017): JGEET Vol 02 No 01 : March (2017)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (620.583 KB) | DOI: 10.24273/jgeet.2017.2.1.34

Abstract

Oil rate will be decline at production time in a well. So, we have to produce in another layer who assume have a potential. Before we produce another layer who assumed have a potential, we need to predict oil rate to known how much oil gain. In this field research oil rate prediction in new productive zone was determine following by analogical data and near well references. In this method there is a difference determine of oil rate for each people. Cause of that, in this research using analysis statistical for oil rate predicting in new productive zone based on linear function for Productivity Index (PI) and polynomial function for watercut. Determining equation of linear and polynomial functions for oil rate prediction measuring by production and logging data for each well who assumed productive zone in area X field RMT. Based of statistically analysis for linear function known that coefficient determination (r2) = 0.9964 and polynomial function known that coefficient determination (r2) = 0.9993. This result indicated that we can use both of the functions for oil rate prediction in new productive zone in area X field RMT. After that, based on both of functions calculate oil rate prediction each wells in area X field RMT. So, known differences in oil rate prediction between oil rate data in area X field Y known is 28.13 BOPD or 0.78%.
Analisis Performance Sumur X Menggunakan Metode Standing Dari Data Pressure Build Up Testing Novrianti, Novrianti
Journal of Earth Energy Engineering Vol 5 No 2 (2016): OCTOBER
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22549/jeee.v5i2.477

Abstract

The number of production wells refers to the performance of the well, which is shown in the graph of inflow performance relationship (IPR). Reservoir characteristics influence on performance of the well, type of welltest and methods that be used in the determination of IPR. By using the IPR curves, maximum flow rate and the optimal flow rate of the well will be known. Pressure Build Up test is used to know performance and a maximum flow rate of the X well. Well test conducted for 15 hours. The well produced at a constant flow rate than close the wellhead. The Pressure data and time data obtained from the well test. The result of Pressure build-up testing analysis among permeability, skin and flow efficiency. After analyzing the Pressure build-up testing permeability obtained 190 mD, skin + 1,68 and 0,83 flow efficiency. Based on the value of flow efficiency Standing method is the most appropriate method is used to analyze the productivity of X well. Standing appropriate method for wells with skin ≠ 0 and flow efficiency ≠ 1. The maximum flow rate of the X well using Standing Method on the 0,83 flow efficiency was 13,91 MMSCFD
Studi Laboratorium Pengaruh Variasi Temperatur Pemanasan Arang Batok Kelapa Terhadap Thickening Time dan Free Water Semen Pemboran Novrianti, Novrianti; Umar, Mursyidah
Journal of Earth Energy Engineering Vol 6 No 1 (2017): APRIL
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.198 KB) | DOI: 10.22549/jeee.v6i1.632

Abstract

The cementing process can determine successful oil well when producing oil to the surface. Planning the time required for the cement suspension to achieve consistency of 100 UC (unit of consistency) or thickening time and the maximum limit of water content used is the nature of cement slurry that affect the quality of cement. The addition of coconut shell charcoal with variation of heating temperature 400 0C, 500 0C, 600 0C, 700 0C, 800 0C, 900 0C to the basic cement was done in this study to determine the effect of heating temperature of coconut shell charcoal to thickening time and free water cement drilling. This experimental study uses an additive material derived from coconut shell charcoal. This experiment begins by preparing a cement sample with a coconut shell charcoal concentration of 1%. The coconut shell charcoal used has different heating temperatures of 400 0C, 500 0C, 600 0C, 700 0C, 800 0C, 900 0C. Suspense cement is made by mixing G grade cement, water, bentonite, CaCl2 and coconut shell charcoal. Thickening time test using atmospheric equipment consistometer and measuring cups used to determine the value of free water. The results showed that the thickening time and free water values ​​were influenced by the heating temperature of coconut shell charcoal. The higher coconut shell charcoal temperature used in the cement suspension make thickening time of the cement suspension becomes shorter. The optimum heating temperature of coconut shell charcoal is 700 0C with thickening time of 1 hour 38 seconds 52 seconds and free water 1.2 mL.
Kick-Off Point (KOP) and End of Buildup (EOB) Data Analysis in Trajectory Design Novrianti, Novrianti; Melisa, Rycha; Adrian, Rafhie
Journal of Geoscience, Engineering, Environment, and Technology Vol 2 No 2 (2017): JGEET Vol 02 No 02 : June (2017)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.802 KB) | DOI: 10.24273/jgeet.2017.2.2.302

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Well X is a development well which is directionally drilled. Directional drilling is choosen because the coordinate target of Well X is above the buffer zone. The directional track plan needs accurate survey calculation in order to make the righ track for directional drilling. There are many survey calculation in directional drilling such as tangential, underbalance, average angle, radius of curvature, and mercury method. Minimum curvature method is used in this directional track plan calculation. This method is used because it gives less error than other method.  Kick-Off Point (KOP) and End of Buildup (EOB) analysis is done at 200 ft, 400 ft, and 600 ft depth to determine the trajectory design and optimal inclination. The hole problem is also determined in this trajectory track design. Optimal trajectory design determined at 200 ft depth because the inclination below 35º and also already reach the target quite well at 1632.28 ft TVD and 408.16 AHD. The optimal inclination at 200 ft KOP depth because the maximum inclination is 18.87º which is below 35º. Hole problem will occur if the trajectory designed at 600 ft. The problems are stuck pipe and the casing or tubing will not able to bend.
Evaluasi Peningkatan Produksi Pada Formasi Sandstone Sumur #H Dan #P Dengan Perencanaan Stimulasi Pengasaman Matriks (Studi Kasus Lapangan Falih) Herawati, Ira; Novrianti, Novrianti
JOURNAL OF EARTH ENERGY ENGINEERING Vol 4 No 2 (2015): OCTOBER
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (470.136 KB) | DOI: 10.22549/jeee.v4i2.634

Abstract

Salah satu upaya stimulasi sumur yang dilakukan untuk meningkatkan produktivitas sumur yang mengalami penurunan produksi karena menurunnya permeabilitas akibat kerusakan formasi adalah dengan pengasaman matriks. Pengasaman matriks dapat dilakukan pada formasi sandstone menggunakan fluida stimulasi berbahan dasar asam Hydrofloric (HF) yang dicampur dengan asam Hydrochlorid (HCl). Dalam pelaksanaannya perlu dilakukan perencanaan desain pengasaman matriks serta mengevaluasi hasil sebelum dan sesudah dilakukan stimulasi pengasaman matriks. Penggunaan Asam Hydrofloric pada batuan sandstone karena dapat melarutkan Silikat. Asam Hydrofloric bereaksi dengan Calsium (Ca) dan Mangan (Mg) membentuk endapan. Pencampuran asam Hydrofloric dan Hydrochlorid akan dapat menghilangkan scale karena sementasi sandstone terdiri dari Ca dan Mg. Evaluasi keberhasilan stimulasi dilakukan pada sumur #H dan #P yang didasarkan pada laju produksi harian sumur, productivity index, kurva IPR (Inflow Performance Relationship) Wiggins serta harga permeabilitas sumur. Dari hasil penelitian yang dilakukan pada sumur #H mengalami peningkatan produksi dari 81.125 BOPD menjadi 121.365 BOPD dengan kenaikan harga productivity index dari 0.12 bbl/day/psi menjadi 0.2 bbl/day/psi dan kenaikan harga permeabilitas dari 11.65 mDarcy menjadi 17.79 mDarcy. Hasil pengamatan yang dilakukan pada sumur #P mengalami penurunan produksi dari 40.89 BOPD menjadi 34.94 BOPD dengan penurunan harga productivity index dari 0.10 bbl/day/psi menjadi 0.09 bbl/day/psi dan penurunan harga permeabilitas dari 10.76 mDarcy menjadi 9.42 mDarcy.
Studi Laboratorium Pengaruh Nanocomposite Nanosilika dan Arang Cangkang Kelapa Sawit Dengan Variasi Temperatur Pemanasan Terhadap Free Water dan Kekuatan Semen Pemboran Novrianti, Novrianti
Journal of Earth Energy Engineering Vol 5 No 1 (2016): APRIL
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.925 KB) | DOI: 10.22549/jeee.v5i1.465

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Semen merupakan salah satu parameter penting dalam proses pemboran. Parameter keberhasilan penyemenan sumur migas antara lain
Optimalisasi Production Well Test Untuk Mendukung Performance Produksi Dengan Cara Tiering System Pada Area X Lapangan Y Rita, Novia; Novrianti, Novrianti
Journal of Earth Energy Engineering Vol 5 No 1 (2016): APRIL
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (472.863 KB) | DOI: 10.22549/jeee.v5i1.459

Abstract

Area X merupakan salah satu area yang terdapat di Lapangan Y PT. Chevron Pacific Indonesia, dimana area X terdiri dari 563 sumur. Pada Area X ini dilakukan pekerjaan tes terhadap sumur sebanyak 2 kali per bulan, sehingga untuk 563 sumur diperlukan 1126 kali tes perbulan. Fasilitas yang tersedia untuk production well test pada Area X hanya mampu 960 kali tes per bulan. Sehingga 116 sumur tidak akan mendapatkan jadwal tes pada setiap bulannya. Apabila prosedur seperti ini tetap dilakukan secara terus menerus maka akan selalu terdapat sisa sumur yang belum terpenuhi untuk dilakukan tes di setiap bulannya. Untuk mengatasi permasalahan ini dilakukan Tiering system. Tiering system adalah suatu metode dalam proses pengujian sumur dimana dalam metode ini sumur-sumur akan dikelompokkan berdasarkan produksi terbesar hingga terkecil. Sumur yang tergolong big production akan berada pada urutan teratas untuk dilakukan Well Testing (Tier #1) dan diikuti Tier #2, Tier #3 dan Tier #4 (Tiering System merupakan metode atau proses yang digunakan untuk mengelompokan data-data production well testing sumur yang banyak menjadi kelompok kelompak kecil, yang bertujuan untuk membantu mengoptimalisasi proses pekerjaan well test di Lapangan (Human Resources Sumatra Operation, 2012).. Kuantitas test sumur setiap bulan akan disesuaikan dengan kebutuhan data dan kategori Tier, hal ini bertujuan untuk mendapatkan data yang valid secara continue pada sumur, sehingga cepat diketahui dan di follow up jika terjadi permasalahan penurunan produksi pada sumur-sumur tersebut. Dengan Tiering System, maka 563 sumur yang harus dilakukan well testing setiap bulannya di Area X jadi terpenuhi karena hanya membutuhkan 777 kali tes perbulan. Bahkan waktu pelaksanaan well test masih tersisa untuk 183 kali tes, hal ini juga berdampak pada kenaikan produksi sebesar 5441 bbl per hari dengan keuntungan sebesar US$ 217.621,75.
Studi Kelayakan Pekerjaan Pemilihan Zona Produksi dan Squeeze off Cementing pada Sumur MY05 Novrianti, Novrianti
Journal of Earth Energy Engineering Vol 6 No 2 (2017): OCTOBER
Publisher : Pekanbaru Riau: Program Studi Teknik Perminyakan FT Universitas Islam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.28 KB) | DOI: 10.25299/jeee.2017.vol6(2).755

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Meningkatnya water cut pada sumur MY05 menyebabkan terjadinya penurunan produksi minyak. Untuk mengatasi masalah tersebut, perlu dilakukan pekerjaan squeeze off pada zona perforasi yang mempunyai kontribusi produksi minyak yang rendah dan potensi produksi air yang tinggi. Setelah pekerjaan squeeze off selesai, selanjut dapat dilakukan pekerjaan shot top perforation (STP) untuk membuka zona produksi supaya produksi minyak dapat produksi. Pemilihan lapisan sand 1440’ sebagai target perkerjaan squeeze off dan STP berdasarkan jumlah cadangan minyak yang tersisa (remaining oil reserve). Selain itu studi keekonomian juga dilakukan untuk mengetahui  tingkat kelayakan proyek. Hasil kedua pekerjaan tersebut mengindikasikan adanya peningkatan produksi minyak sebesar 405 BOPD dan berkurang nya nilai water cut menjadi 76%. Hasil analisa keekonomian menunjukkan bahwa pekerjaan tersebut sangat ekonomis untuk dilakukan.