The re-entry, which has been designed to be carried out at minimal costs, is of value to investigate fluid levels in the well and provide an accurate bottom hole pressure
measurement which will provide useful reservoir data for future operations and production and equipment is being ordered.
During the quarter, bottom hole pressure
has been maintained at 250 psi, allowing propagation of the pressure front to extend out from the wellbore without compromising the coal integrity.
"During the fourth quarter we began testing pressure management techniques designed to maximize oil production by managing bottom hole pressure
drawdown rate," Maranto said.
Type Curves of the Bottom hole Pressure
in the Dewatering with Constant Production
Reservoir area, [m.sup.2] 202500 Reservoir depth, m 3300 Initial formation pressure, MPa 30.5 Porosity, % 8.5 Permeability, mD 0.1 Initial water saturation 0.40 Number of grid blocks 15 x 15 x 1 Step size of a block (DX, DT, DZ), m 30, 30, 10 Half-length of hydraulic fracture, m 100 Permeability of the hydraulic fracture, mD 50 Bottom hole pressure
, MPa 5 TABLE 2: Stabilized production period and gas recovery under different gas rates.
Managed Pressure Drilling Services Market by Technology (Constant Bottom Hole Pressure
, Dual Gradient Drilling, Mud Cap Drilling, Return Flow Control Drilling, by Application (Onshore & Offshore) and by Region - Global Trends and Forecasts to 2021
[USPRwire, Wed Feb 11 2015] Managed Pressure Drilling Services Market by Technology (Constant Bottom Hole Pressure
(CBHP), Dual Gradient Drilling (DGD), Mud Cap Drilling, Return Flow Control Drilling (RFCD), by Application (Onshore & Offshore) and by Geography - Global trends and forecasts to 2019
During underbalanced drilling the bottom hole pressure
is kept below the reservoir pore pressure.
Conclusion: Parallel data generation for predicting wellhead pressures corresponding to the existing flowing bottom hole pressure
, is one of the fastest ways to generate data, providing an opportunity to analyze the actual data with the predicted data based on two correlations, i.e., modified H and B and B and B.
Meaningful and realistic data was retrieved from this environment for the first time and downloaded from the returned microchip that showed the dynamic bottom-hole pressure of 7,500 psi and circulating bottom hole temperature of 190 degrees Fahrenheit, consistent with static bottom hole pressure
of 6,700 psi due to mud weight and wireline tool recorded static bottom hole temperature at 235 degrees.
Production testing of the well resulted in 7,536 b/d of 51[degrees] API oil and 13.6 MCF/d of gas normalised to a flowing bottom hole pressure
of 2,000 psi.
Calliope can generally achieve substantially lower flowing bottom hole pressure
than conventional gas production methods because it does not rely on reservoir pressure to lift liquids.