Low pressure buildup with large disposal volumes of oil field water: A flow model of the Ellenburger Group, Fort Worth Basin, northcentral Texas

Shuang Gao, Jean-Philippe Nicot, Peter H. Hennings, Paul La Pointe, Katie M. Smye, Elizabeth A.Horne, and Robin Dommisse

AAPG Bulletin

... align with the expected hydrostatic pressure. Thus, the model was assumed to be normally pressured everywhere with a pressure reference point located...

Production Testing: Part 9. Production Engineering Methods

David E. Lancaster

AAPG Special Volumes

... hydrostatic mud pressure (pihm) while going into the hole. The initial flow period (pif1 to pff1) is a short production period, usually only 5 to 10 min...

Compartmentalization of the Overpressured Interval in the Anadarko Basin

Zuhair Al-Shaieb, Jim Puckette, Phebe Deyhim

Kansas Geological Society

.... They are recognized most easily on pressure-depth profiles (PDP's) by their departure from the normal hydrostatic gradient. The Anadarko Basin provides an excellent...

CONTINENTAL SCIENTIFIC DRILLING PROGRAM. A proposal for deep scientific drilling and associated exploration and research, Texas Gulf Coast

Lynton S. Land and William Galloway

Houston Geological Society Bulletin

... one kilometer; a regime at intermediate depths, characterized by normal to moderately elevated hydrostatic gradients; and a deep system in the lower...

Abstract: Continental Scientific Drilling Program: a Proposal for Deep Scientific Drilling and Associated Research, Texas Gulf Coast

DOSECC Study Group

GCAGS Transactions

..., a regime at intermediate depths, characterized by normal to moderately elevated hydrostatic gradients, and a deep system in the lower portion of the basin...

Successful Application of Single Stage Cementing with Fibered Cement Slurry in Low-Fracture-Pressure Production Formation … A Case History in Indonesia

Moh Ariawan Hidayat, Jaka Sondang, Bayu B Natanagara, I Putu A Saputra, Michael Awalt, Aziz Muslim, Victoria Rasmi Wedhaswari, Haryo Yuristyanto, Maimoon Fayyaz Jaffery, Andi Harahap

Indonesian Petroleum Association

... Louise low-fracture pressure formation: 1. First is to minimize risk of lost circulation by reducing hydrostatic pressure during cementing job. The key...

Cross-Formational Gravity-Flow of Groundwater: A Mechanism of the Transport and Accumulation of Petroleum (The Generalized Hydraulic Theory of Petroleum Migration)

Jozsef Toth

AAPG Special Volumes

... deviations for the areas of recharge and discharge, respectively, from the normal (hydrostatic) pressure increase which is found in the region...

Flow Regimes and Solute/Energy Transport

Jeffrey S. Hanor

Special Publications of SEPM

... evidence of fluid flow driven by large pressure gradients. I have heard a few people claim that flow cannot be occuring out of geopressured sones...

Geo-Fluid-Dynamic Aspects of Oil-Gas Accumulation in Sub-Salt Sediments of Central Siberian Craton

M. S. Kraychik, O. A. Baboshina

Petroleum Geology: A Digest of Russian Literature

... structures, b-negative structures. Formation pressure in the region varies over a wide range from normal to underpressure and overpressure. In spite...

Migration from Source to Trap: Chapter 3: PETROLEUM GENERATION AND MIGRATION

William A. England, Alastair L. Mann, David M. Mann

AAPG Special Volumes

.... The water fluid potential, W, is simply equal to the prevailing overpressure, i.e., the amount by which local water pressure exceeds hydrostatic pressure...

Reply to Kinji Magara Including a Discussion of the Concept and Phenomenon of the "Tensiometer Effect" in Cross-Formational Gravity-Flow Systems of Formation Fluids: REPLY

Jozsef Toth

CSPG Bulletin

... this level the pressure is hydrostatic and increases downward at the normal hydrostatic rate: = g. Above this level and upward the pressure decreases Figure...

Pressure and Basin Modeling in Foothill Belts: A Study of the Kutubu Area, Papua New Guinea Fold and Thrust Belt

Jean-Paul Callot, William Sassi, François Roure, Kevin Hill, Nigel Wilson, Renaud Divies

AAPG Special Volumes

... evolution to mitigate that risk. In particular, charge risks are assessed from estimates of paleothermal gradients, paleofluid flow and pore pressure...

Heat Flow Estimation from BSR: An Example from the Aru Region, Offshore West Papua, Eastern Indonesia

Bagus Priyanto, Ketil Hokstad, Christian Zwach, Mark Van Schaack, Rune Mjøs, Edo Tri Hartadi, Zuzana Alasonati Tasarova, Kenneth Duffaut

Indonesian Petroleum Association

... was tested using Vclay of 0.3, 0.4, and 0.5. After calibration to the well data, a Vclay of 0.5 is selected as the most likely scenario. hydrostatic pressure...

Porosity trends in the Skagerrak Formation, Central Graben, United Kingdom Continental Shelf: The role of compaction and pore pressure history

Neil T. Grant, Alexander J. Middleton, and Stuart Archer

AAPG Bulletin

... of pore pressure, the aquifer and hydrocarbon pressure gradients, and the depth of the hydrocarbon–water contact (or free water level [FWL]; see...

Successful Use of Thixotropic Cement in Southern Sumatra-Case Histories

Sugiharto Imam Santoso, Memet Rachmat, R. Suryaman, Kusmono Sumarto

Indonesian Petroleum Association

... is in place. Cement fall back occurs when excessive hydrostatic pressure due to the higher density cement in the annulus breaks down the formation...

Stress Evolution Of Maari Field, Nz: Implications For Fault/Fracture Integrity, Stress Prediction, Infill Drilling And Borehole Integrity

Search and Discovery.com

Experimental Assessment of Elastic Properties and Minimum Horizontal Stress in the Haynesville Shale-Gas Formation

Clotilde Chen Valdés, Zoya Heidari

Unconventional Resources Technology Conference (URTEC)

..., and hydrostatic pressure capacity of 137 MPa. Three sets of non-destructive experiments were conducted at each depth including hydrostatic stress...

Permeability Controls on Aquathermal Pressuring

John M. Sharp, Jr.

AAPG Bulletin

... ^agrr is the compressibility of the mineral grains. The fluid pressure (p) is the sum of the hydrostatic (ps) and excess (u) pore-fluid pressures...

Smectite Dehydration--Its Relation to Structural Development and Hydrocarbon Accumulation in Northern Gulf of Mexico Basin

Clemont H. Bruce

AAPG Bulletin

... at depths shallower than the interval of smectite diagenesis. In these areas, there are commonly accelerated rates of increase in fluid-pressure gradients...

Abstract: Pressure Compartments from Effective Stress Profiles - Hydrocarbon Trap Implications for the Shelf and Deepwater GOM, by Rudi Wilhelm and Craig Limbaugh; #90914(2000)

Search and Discovery.com

Corpus Christi Structural Basin Postulated from Salinity Data

W. Armstrong Price

AAPG Special Volumes

... of saturation. It is not under hydrostatic pressure. This water may be great in amount. It has been called vadose water. Upper zone of saturation: The permeable...

Corpus Christi Structural Basin Postulated from Salinity Data

W. Armstrong Price

AAPG Bulletin

... interstices. The molecular forces prevent this water from being drawn down by gravity to the zone of saturation. It is not under hydrostatic pressure...

Subsurface Fluid Compartments, by D. E. Powley, #60006 (2006).

Search and Discovery.com

Hierarchies of overpressure retardation of organic matter maturation: Case studies from petroleum basins in China

Fang Hao, Huayao Zou, Zaisheng Gong, Shigang Yang, Zhiping Zeng

AAPG Bulletin

.../n-C18 remain constant or even increase slightly with increasing depth, which is contrary to the normal trend under hydrostatic pressure conditions...

Pressure in Miocene Carbonate Exploration Targets

Stephen Jenkins, Richard Swarbrick, Anthony Mallon, Stephen O'Connor

Indonesian Petroleum Association

... as the opportunity for hydraulic seal failure in traps. These are pressures that are significantly above the normal (hydrostatic) pressure gradient. All...