FDP Study contents of XXXX Field
The scope of work shall include, but not limited to the following:
BACKGROUND
Cluster is located in the northern corner of Block-4, it lies about 16 Km NW of Neem FPF and 6 oil-bearing blocks in Great XXXX Custer, includes Hilba, XXXX E, XXXX N, XXXX C, XXXX NE and XXXX NW. The first oil discovery was by Hilba-01 well in 2003. XXXX Cluster is a field of multiple structures, multi-rervoirs & highly faulted. The depth of rervoir varies from 850m to 2300m. Heavy oil in Aradeiba, Zarqa, Ghazal and Amal formation mainly, especially thick heavy oil in Amal of XXXX NE and XXXX NW Blocks, API range is 10–28 ºAPI. According to the well test of six wells, the cold production is very low in Amal and all the wells isn’t tested by steam injection. Detailed OOIP (2P) data of XXXX Cluster from GNPOC information which finished in 2014 is listed in the following table:
XXXX Cluster crude oil is heavy with high viscosity at rervoir conditions (µo=50000cp) at Amal formation. Following is a summary for rervoir parameters:
parameter | Hilba-1 | XXXX E-1 | XXXX N-1 | XXXX NW-1 | XXXX NE-1 | XXXX C-1 |
rervoir | Amal | Ghazal | Ghazal | Zarqa | Baraka | Ghazal | Amal | Ghazal | Amal | Ghazal |
top depth，mkb | 968 | 2025 | 1691 | 2105 | 1796 | 2079 | 815 | 1840 | 1190 | 2015 |
initial res.pressure，Psi | 1232 | 2715 | 2255 | 2912 | 2359 | 2762 | 540 | 2518 | 1505 | 2689 |
Tem，℃ | 65 | 79 | 74 | 80 | 76 | 78 | 55 | 范逸臣72 | 61 | 77 |
Porosity，fraction | 0.31 | 0.24 | 0.25 | 0.16 | 0.28 | 0.22 | 0.3 匈奴未灭无以家为 | 科技馆的故事0.22 | 0.29 | 0.16 |
Permeability，mD | | | | | | | | | | |
API | | 17形容牡丹 | 19 | 22 | 17 | 16 | 10 | 13 | 11 | 22 |
门牙缝大viscosity@80℃，cp | | | | 90 | 626 | | 7680 | 3298 | 5424 | 60 |
| | | | | | | | | | |
At the end of Oct. 2014, there are 4 drilled wells in block XXXX E(XXXX E-1,2,3,4), the other block 1 well parately(XXXX N-1, XXXX NE-1, XXXX NW-1, XXXX C-1, Hilba-1,), and none of wells hasn’t been produced.
●Study History
No FDP since 2003.
●Available Data
✓Geological reports and drilling reports(9 wells).
✓Mud logging data and Wireline logging data(3 wells).
✓Well test data(6 wells).
✓DST and pressure survey, well test reports.
✓Completion data.
●Main Challenges:
✓Heavy viscous and low API crude oil
✓Multiple structures, multi-rervoirs & highly faulted
✓Wellbore lifting technology
✓Technique of gathering process
2.1 Geophysics
●Regional the areal structure, the stratigraphic quence and the traps
●QC/review the current data and the result of interpretation
●Making synthetic records of all wells
●Tie-in Boreholes to ismic surfaces, using VSP data
●Re-interpret horizon/fault to 4*4 CDP, including top of Nayil, Amal, Baraka, Ghazal, Zarqa, Aradeiba and Bentiu
●U Variance time slice and other techniques to identify concealed faults
●Establish the model of velocity field basing on veriable speed and analysis the velocity
●Conduct the time-depth conversion of all interpreted horizon
●Make up TWT and Depth maps of all interpreted horizon
●Rervoirs inversion using Jason, to study the distribution of sand body
●Predict the new structural trap and evaluate the potention
social名词2.2 Petrophysics
2.2.1 Core Data Review & Analysis
●QC of core data
2.2.2 QC of Log Data & Data Preparation
●QC of Log Data
●depth match, splice las file if require for all available data
●拜年的拜Normalization and filtering of the curves
●Reconcile deviation survey data and define Measured vs. TVD depth conversions
2.2.3 Parameters Modelling & Petrophysics Interpretation
英雄的事迹
●Build litho-porosity model to calculate clay/shale volume and total porosity
●Calculate water saturation using suitable saturation equation (model)
●Determine permeability profile as a function of porosity and/or water saturation
●Calibrate evaluation results to core permeability using cross-plots
●Logic, clay volume, lithology model, saturation model, hydrocarbon corrections to porosity, porosity calibrations to core and permeability transforms
●Cutoff determination; Perform cut-off nsitivity analysis on volume for porosity, clay/shale and water saturation
●Analyze formation pressure (FMT/RFT) for fluid contact and fluid type identification
●Determine the initial oil water contacts & the current fluid contacts Confirmation of fluid type and current and initial fluid contact from RFT/ MDT Pressure plot, DST Results, and logs data
●Final results in single final well composite per well incorporating core results/descriptions, DST, FMT.Rervoirs and net pay flags on the interpretation plots
●Interpretation results, data, tables saved in las or lis format
