Combining Pressure Falloff and Buildup Testing Using

Combining Pressure Falloff and Buildup Testing Using Wireline Formation Tester in Coal Bed Methane Environment Schlumberger Wireline dual-packers formation testers have demonstrated to be a powerful tool for the estimation of permeability in CBM seams. For this purpose, it is recommended to perform both injection and production tests.

Design and Interpretation of Injection/Falloff Tests for

Taurus operates hundreds of coalbed methane wells in the Black Warrior Basin, covering a wide range of geologic conditions (permeabilities). Both slug tests and injection/falloff tests have been used by Taurus to determine the permeability of coal seams in the Black Warrior permeability of coal seams in the Black Warrior Basin. P. 425

Cited by: 17

Injection Into Coal Seams for Simultaneous CO, Mitigation

Subtask 6.1, Two-Well Pilot Test of CO, Injection .. 2 Subtask 6.2, CO,/N, Laboratory Coalbed methane (CBM) is the hydrocarbon gas consisting largely of methane that is either The Pressure Falloff Test (PFOT) taken the second half of September 1994 on the injector was compared to the pre-CO, Pressure Buildup Test taken in October

Author: F.M. Carlson, C.G. Mones, L.A. Johnson, F.A. Barbour, L.J. Fahy

Analysis of controlling test time in injection / Fall off Test

The basic theory, test method, equipument, test process, test data analysis of injection/falloff well test are introduced in detail in this paper. The advantages and disadvantages are analyzed.

Pressure Falloff Testing of Enhanced Coalbed Methane Pilot

Abstract As part of the effort to interpret Amoco's enhanced coalbed methane recovery pilot, each of the four nitrogen injectors was tested with a pressure falloff test (PFOT) after approximately five months of injection. An additional test was done on the final injector at the termination of the pilot.

Author: J.R. Seidle, J.F. McAnear

CBM reservoir evaluation PetroWiki

Jan 20, 2016 In an injection/falloff test, it is important to establish communication with all the coal layers before testing. This can be achieved by breaking down the perforations with a small ballout treatment followed by a spinner survey to confirm communication.

Injection Into Coal Seams for Simultaneous CO, Mitigation

Subtask 6.1, Two-Well Pilot Test of CO, Injection .. 2 Subtask 6.2, CO,/N, Laboratory Coalbed methane (CBM) is the hydrocarbon gas consisting largely of methane that is either The Pressure Falloff Test (PFOT) taken the second half of September 1994 on the injector was compared to the pre-CO, Pressure Buildup Test taken in October

Pressure Falloff Testing of Enhanced Coalbed Methane Pilot

Oct 22, 1995 As part of the effort to interpret Amoco's enhanced coalbed methane recovery pilot, each of the four nitrogen injectors was tested with a pressure falloff test (PFOT) after approximately five months of injection. An additional test was done on the final injector at the termination of the pilot.

Analysis of controlling test time in injection / Fall off Test

The basic theory, test method, equipument, test process, test data analysis of injection/falloff well test are introduced in detail in this paper. The advantages and disadvantages are analyzed.

PEH:Coalbed Methane PetroWiki

Apr 26, 2017 First, injection/falloff tests do not require reservoir flow; therefore, they can be run in underpressured as well as normal and overpressured reservoirs. It usually is easier to measure injection rates in an injection/falloff test than it is to estimate flow rates in a drillstem test when fluids are not produced to the surface.

Gas transportation in CBM reservoir ScienceDirect

Jan 01, 2020 A matrix injection/falloff test (MIFOT) is performed at a rate well below the fracturing rate, typically about 0.1 gal/min. It is important to inject at low rates to avoid fracturing the coal and to minimize permeability changes due to stress effects. Typical injection time is 8 h followed by at least 48-h shut-in period. Longer injections and

Best practices for the determination of low-pressure

Nov 15, 2015 The test equipment was on a trailer-mounted system manufactured by A-Strike Consulting Company (IL, USA). This state-of-the-art, self-contained trailer houses the injection pumps, a water storage tank, and monitoring equipment used for conducting the IFOT. The method of injection/falloff well test for coalbed methane well. GB/T 24504-2009

SPE Applied Technology Workshop, October 28 -29, 2004

2 Injection/Falloff Test 2nd Production Test 2nd CO 2 Injection/Falloff Test Final Production Test CH 4 Production/Build-up Test 220 Reference Time = June 20, 1998 (One 12-tonne CO China United Coalbed Methane Corporation Ltd. (CUCBM) (CA $ 5 million) 3.5 year CA $ 10 million Project

Dynamic Well Testing in Petroleum Exploration and

May 12, 2020 7.3 INJECTION/FALLOFF WELL TEST METHOD FOR COALBED METHANE WELLS 7.3.1 Equipment and Technology for Injection/Falloff Well Testing 7.3.1.1 Test String 7.3.1.2 Measuring Instruments 7.3.1.3 Water Injection Pump 7.3.1.4 Testing Process 7.3.2 Well Test Design of Injection/Falloff 7.3.2.1 Selection of Shut-In Mode

Well-Testing CBM-Wells Definition of Major Anomalies

and increasingly utilise coal bed methane and other unconventional sources as alternative sources of energy. Proven oil reserves for the world in 2013 were 1,600billion [1] compared to resource estimates for Coal Bed Methane CBM that range up to 1,400 billion barrels equivalent oil [2].

Characteristics of in situ stress and its influence on

Nov 06, 2019 In order to discuss the influence of in situ stress on CBM development in the eastern part of the southern Junggar Basin, we have investigated the

SURFACE MONITORING FOR THE SECARB BLACK WARRIOR

The project focuses on the injection of about 1,000 tons of CO 2 into a mature coalbed methane well and a series of buildup and falloff tests that will be monitored in the injection well and a series of remote observation wells. Before the injection test, one shallow water observation well and three deep

Navodit Mishra Senior Sales Account Manager Mannai

Interpretation of Injection/Falloff Test data using PAN-SYSTEM in Coal Bed Methane (CBM) reservoirs Description: Determination of Reservoir properties such as Permeability is the main purpose of injection falloff tests. PAN-SYSYTEM (Weatherford) is used for the same purpose.

Title: Sr. Sales Account Manager at

Alberta Multiwell Micro-Pilot Testing for CBM, ECBM, and

equipment that was followed by a post injection-production test. A second well (FBV 5) was drilled 487 m north of the first well. FBV 5 was cored and logged for reservoir property data. The well was then cased and completed in one Medicine River coal seam. A combination of production tests and water-injection falloff tests were conducted to

FACTSHEET FOR PARTNERSHIP FIELD VALIDATION TEST

Three coal zones were individually through pressure-transient injection-falloff tests using a total of 278 tons of CO2 (about 93 tons per coal zone). Coal seams at the test site can sequester more than 1,740 tons of CO2 per acre (30 million scf/acre). Therefore, this project affected only the area immediately surrounding the coalbed methane well.

Injection Into Coal Seams for Simultaneous CO, Mitigation

Subtask 6.1, Two-Well Pilot Test of CO, Injection .. 2 Subtask 6.2, CO,/N, Laboratory Coalbed methane (CBM) is the hydrocarbon gas consisting largely of methane that is either The Pressure Falloff Test (PFOT) taken the second half of September 1994 on the injector was compared to the pre-CO, Pressure Buildup Test taken in October

Alberta Multiwell Micro-Pilot Testing for CBM, ECBM, and

equipment that was followed by a post injection-production test. A second well (FBV 5) was drilled 487 m north of the first well. FBV 5 was cored and logged for reservoir property data. The well was then cased and completed in one Medicine River coal seam. A combination of production tests and water-injection falloff tests were conducted to

SURFACE MONITORING FOR THE SECARB BLACK WARRIOR

The project focuses on the injection of about 1,000 tons of CO 2 into a mature coalbed methane well and a series of buildup and falloff tests that will be monitored in the injection well and a series of remote observation wells. Before the injection test, one shallow water observation well and three deep

FACTSHEET FOR PARTNERSHIP FIELD VALIDATION TEST

Three coal zones were individually through pressure-transient injection-falloff tests using a total of 278 tons of CO2 (about 93 tons per coal zone). Coal seams at the test site can sequester more than 1,740 tons of CO2 per acre (30 million scf/acre). Therefore, this project affected only the area immediately surrounding the coalbed methane well.

SPE Applied Technology Workshop, October 28 -29, 2004

2 Injection/Falloff Test 2nd Production Test 2nd CO 2 Injection/Falloff Test Final Production Test CH 4 Production/Build-up Test 220 Reference Time = June 20, 1998 (One 12-tonne CO China United Coalbed Methane Corporation Ltd. (CUCBM) (CA $ 5 million) 3.5 year CA $ 10 million Project

Characteristic of In Situ Stress and Its Control on the

Coalbed methane (CBM) development faces many challenges, among which in situ stress and permeability are two of the most important and fundamental factors. Knowledge of the characteristics of these factors is crucial to CBM exploration and development. Based on measured injection/falloff and in situ stress well test data of 55 CBM wells in the eastern margin of the Ordos Basin, correlations

Current status and technical challenges of CO 2 storage in

Aug 19, 2014 For the field validation test, an existing coalbed methane (CBM) well was converted for CO 2 injection. The initial injection of 45 tons of CO 2 was completed on January 10, 2009. In total, 1,000 tons (U.S. short tons) of CO 2 were injected into the interval at

Milestones A G Guzman-Garcia Worldwide

Coal-Bed Methane On location for the first-ever in ExxonMobil history Injection-Falloff Tests in a Coal-Bed Methane (Coal-Seam Gas) play in Germany. Collaboration with the reservoir engineer in the interpretation of the downhole data on-site allowed for modifications to the program to ensure that objectives were met.

US5974874A Method for testing gas wells in low pressured

The "Tank Test" method for determining well tests in low pressured reservoirs or aquifers utilizes gravity drainage from a water storage tank to inject water into the reservoir. The Tank Test eliminates the need for expensive pumping equipment and the required manual pump rate adjustments. The low costs associated with the Tank Test allows the test to run for a longer duration so that a

Navodit Mishra Senior Sales Account Manager Mannai

Interpretation of Injection/Falloff Test data using PAN-SYSTEM in Coal Bed Methane (CBM) reservoirs Description: Determination of Reservoir properties such as Permeability is the main purpose of injection falloff tests. PAN-SYSYTEM (Weatherford) is used for the same purpose.

Title: Sr. Sales Account Manager at

Surface & Downhole Data Acquisition BGES Big Guns

All equipment is installed without the need for a service or drilling rig. Integration of Services From wellsite core collection, geotechnical lab testing, cased-hole logging, reservoir and caprock injection testing, data analyses, project management, regulatory reporting, to computer simulation and numerical modelling, our comprehensive and

Experimental study on the velocity sensitivity of coal

Zhou, FD, Yao, GQ (2014) Sensitivity analysis on permeability estimation using logging and injection-falloff test data for an anthracite coalbed methane reservoir in Southeast Qinshui Basin, China. International Journal of Coal Geology 131: 41 51 .

coal bed methane SPE

coal bed methane Feature. Peer reviewed (73) Source. Journal of Petroleum Technology (18) OnePetro (1240) Fluid Dynamics, gas content, gas desorption, gas rate, injection falloff test, knowledge management, log analysis, This distinction requires that equipment and facilities for water handling and disposal be built at the start of a

Fact Sheet SECARB PII Black Warrior Basin Coal Seam

Three coal zones were individually through pressure-transient injection-falloff tests using a total of 278 tons of CO 2 (about 93 tons per coal zone). Coal seams at the test site can sequester more than 1,740 tons of CO 2 per acre (30 million scf/acre). Therefore, this project affected only the area immediately surrounding the coalbed methane well.