... without energy accumulation. enhancing rop axial-torsional coupled percussion impact force impact frequency field application petroleum engineering petroleum wells-drilling construction Enhancing rate of penetration (ROP) is a goal pursued by the petroleum exploration and development...

... 21 06 2018 Oil reservoirs Petroleum engineering Petroleum wells-drilling Construction Gas reservoirs Production Nowadays, many technologies including well placement optimization [ 1 – 3 ], water flooding [ 4 – 6 ], hydraulic fracturing [ 7 – 14 ], and horizontal drilling [ 15...

... engineering Petroleum wells-drilling Construction Gas reservoirs Production Drilling induced fractures are prone to be created in pressure depleted reservoirs, naturally fractured formations and deep-water wells due to the narrow safety mud weight window [ 1 , 2 ]. After the initiation phase...

... Petroleum wells-drilling Wells-injection Production Oil Gas Geothermal Construction Water flooding is a common process among the enhanced oil recovery methods; however, at long-time water flooding system, changing the pore structure alters some reservoir parameters such as formation...

... Construction Acidizing techniques are often divided into: (1) Acid washing is an operation designed to remove impairment of the perforations or openhole. Sometimes a zone will only produce at low rates after an acid wash. This can usually be attributed to the acid only treating a limited portion...

... flow Production Construction Gas hydrates are crystalline inclusion compounds in which the light gas molecules are captured in the hydrogen-bonded cages of water molecules. As the development of oil and gas expands to deepwater region [ 1 , 2 ], the thermodynamic conditions for hydrate...

...: effect of temperature variation on the sonic strength of the geopolymer, curing pressure 2000 psi Petroleum engineering Petroleum wells-drilling Production Construction In oil well cementing, ordinary Portland cement (OPC) is used for a variety of operations including abandonment...

... May 15, 2018. Assoc. Editor: John Killough. 26 09 2017 12 04 2018 Energy conversion Energy systems analysis Oil reservoirs Petroleum engineering Petroleum wells-drilling Construction Energy systems Production Oil recovery from petroleum reservoirs in the first...

... received March 29, 2018; published online May 7, 2018. Assoc. Editor: Esmail M. A. Mokheimer. 28 11 2017 29 03 2018 Deep-water petroleum Energy conversion Oil reservoirs Petroleum wells-drilling Construction Energy systems Production A in = inlet cross section...

.../1.4026205 14 10 2017 26 03 2018 Petroleum engineering Petroleum wells-drilling Wells-injection Production Oil Gas Geothermal Construction With increase in oil and gas usage and demand, unconventional oil and gas resources, such as shale and tight oil & gas...

... Wells-injection Construction Oil Gas Geothermal Production With substantial exploration, the oil and gas resources from on-land and shallow-water oilfields cannot meet the need of the industry development [ 1 – 3 ]. Recently, more and more of the newly proved oil and gas resources...

...-drilling Unconventional petroleum Production Construction In the last decade, the number of horizontal wells has risen dramatically in the exploration and development of unconventional reservoirs [ 1 , 2 ]. These unconventional reservoirs, such as shale gas reservoirs, are made up of rocks...

... 05 03 2018 Geothermal energy Natural gas technology Petroleum engineering Petroleum wells-drilling Wells-injection Construction Oil Gas Geothermal Production International oil prices have been hovering at a low level since the second half of 2014. The use of technological...

... Petroleum engineering Petroleum wells-drilling Construction Gas reservoirs Production Water coning is a rapid water invasion bottom-up from the water-zone to near wellbore oil-zone in a cone like shape caused mainly due to the application of higher pressure drawdown near the well. Ultimate...

... refracturing guided by directional boreholes, which is helpful for the design of fracturing construction programs. Of which: { λ 7 = (   cos 2 β − sin 2 β ) sin   θ   cos   θ − sin   β   cos   β (   cos 2 θ − sin 2 θ ) λ 8...

... manuscript received March 4, 2018; published online March 29, 2018. Assoc. Editor: Ray (Zhenhua) Rui. 19 09 2017 04 03 2018 Oil reservoirs Petroleum engineering Petroleum wells-drilling Construction Gas reservoirs Production Simulation and modeling are the key factors...

... Petroleum engineering Petroleum wells-drilling Unconventional petroleum Construction Gas reservoirs Production There is abundant resource and great development potential in China's low-permeability reservoir, which is characterized by tight lithology, low permeability, etc., and always...

... wells-drilling Wells-injection Construction Oil Gas Geothermal Production Modern cement testing equipment relies on ultrasonic measurements in order to estimate the cement strength development over time under the most complex in situ conditions. The market shows an abundance of ultrasonic...

...; published online March 15, 2018. Assoc. Editor: Ray (Zhenhua) Rui. 28 08 2017 03 01 2018 Oil reservoirs Petroleum engineering Petroleum wells-drilling Construction Gas reservoirs Production Permeability is one of the most significant characteristics of hydrocarbon...

...Ramin Dabirian; Ram Mohan; Ovadia Shoham; Gene Kouba In order to assess the critical sand deposition condition, a unique 4-in ID test facility was designed and constructed, which enables the pipe to be inclined 1.5 deg upward. Experiments were conducted with air–water-glass beads at low sand...