|Theme||Visible||Selectable||Appearance||Zoom Range (now: 0)|
The Kuparuk River oil field is west of the supergiant Prudhoe Bay oil field on Alaska's North Slope and was discovered in 1969. It has approximately 5.9 billion bbl of stock tank original oil in place (STOOIP) and covers more than 200 sq. The sandstone reservoir consists of two zones [A (62% of STOOIP) and C (38% of STOOIP)] that are separated by impermeable shales and siltstones. Sales oil is approximately 24 API with a viscosity at reservoir conditions of approximately 2.5 cp. The reservoir oil was approximately 300 to 500 psi undersaturated at the original reservoir pressure of approximately 3,300 psia.
The Swanson River field is located in Cook Inlet, Alaska, US. Production is from the Hemlock formation. This field is a north/south-trending anticlinal flexure about 6 miles long by 1 to 3 miles wide with as much as 600 ft of closure. The Hemlock formation consists of interbedded fine- to coarse-grained sandstone, conglomerate, siltstone, and coal, with numerous thin, impermeable, calcareous stringers of somewhat limited areal extent. Field experience has confirmed that these calcareous stringers are effective barriers to the vertical migration of fluids in the vicinity of producing wells.
Intelligent wells are downhole flow control devices, sensors, power and communication systems, and associated completion equipment. This equipment is used to optimize production, improve recovery, and manage well integrity. Developing an intelligent-completion solution requires the clear definition of well and/or project objectives. Initially flow control devices were based on conventional wireline-operated sliding-sleeve. These valves were reconfigured to be operated by hydraulic, electrical, and/or electrohydraulic control systems to provide on/off and variable position choking.
Var Energi has confirmed a discovery at its King and Prince exploration wells in the Balder area in the Southern North Sea. Success at the combined King and Prince exploration wells lifts preliminary estimates of recoverable oil equivalents between 60 and 135 million bbl. King/Prince was drilled in PL 027 by semisubmersible rig Scarabeo 8. The Prince well encountered an oil column of about 35 m in the Triassic Skagerrak formation within good to moderate reservoir sandstones, while the King well discovered a gas column of about 30 m and a light oil column of about 55 m with some thick Paleogene sandstone. An additional King appraisal sidetrack further confirmed a 40-m gas column and an oil column of about 55 m of which about 35 m are formed by thick and massive oil-bearing sandstone with excellent reservoir quality.
Halliburton has introduced ExpressFiber, a single-use fiber-optic cable designed to offer accurate, direct subsurface measurements, including cross-well communication. Through an exclusive 5-year agreement for North America unconventionals, ExpressFiber will be enabled by FiberLine Intervention (FLI), a wellbore-surveying technique from UK-based Well-Sense Technology Ltd. ExpressFiber uses distributed acoustic sensing to acquire a direct measurement of microseismic, strain, and temperature, unlike other cross-well monitoring techniques that provide indirect estimates. When paired with the contractor's intelligent fracturing and subsurface monitoring services, it provides real-time insights of fracture growth and well interference. "When it comes to direct measurement of the subsurface, fiber is the most direct and trusted sensor of choice, but traditionally it has been expensive and complex to install," said Michael Segura, vice president of production enhancement at Halliburton. "Our innovative fiber portfolio transforms fracture monitoring from an application reserved for science wells to a routine solution for regular use on more wells across your asset."
Are you trying to stay up to date about developments aimed at energy-transition efforts in our industry? Green Energy Billionaires While the oil and gas industry may not yet be profiting from the energy transition, a number of individuals are. According to Forbes, as of April, there were 34 billionaires throughout the world whose fortunes stem from clean energy. Here are the top 10. Clients include BMW, Volkswagen, and Geely.
The jackup-type mobile offshore drilling unit (MODU) has become the premier bottom-founded drilling unit, displacing submersibles and most platform units. The primary advantage of the jackup design is that it offers a steady and relatively motion-free platform in the drilling position and mobilizes relatively quickly and easily. Although they originally were designed to operate in very shallow water, some newer units, such as the "ultra-harsh environment" Maersk MSC C170-150 MC, are huge (Figure 1) and can be operated in 550 ft in the GOM. This type of unit can be commercially competitive only in the North Sea and in very special situations. Figure 1--Maersk's giant jackup (largest in the world) designed for deepwater use (550 ft in the GOM) and harsh North Sea environment.
BP has acquired UK-based digital energy business Open Energi. The company's digital platform uses real-time data to optimize the performance of energy assets. It connects customers to power markets with the goal of providing flexibility at times of low renewable-energy generation and during price peaks. The share of primary energy from renewables is projected to increase from around 5% in 2018 to 60% by 2050 in the net-zero scenario set out in BP's Energy Outlook. However, because generation from these sources depends on weather conditions, the growth will also bring increased market and price volatility.
Nearly 150 workers have been evacuated or are due for evacuation from Shell's Shearwater project in the North Sea since a COVID-19 outbreak emerged at the end of June, the company said on 20 July, as the industry called for an exemption from self-isolation rules for offshore workers. So far, 26 people at the Shearwater oil and gas hub have tested positive for COVID-19, with another 122 categorized as having been "close contacts" of those infected, Shell told S&P Global Platts. Most have already been flown to shore, with a small number isolating at the facility before returning to shore, Shell said, adding that the spread of infection was slowing, with only five cases detected in the last 7 days of the outbreak. Shearwater is the focus of concerns that rising UK infection rates could spread to the offshore oil and gas sector, which normally provides 1 million B/D of oil including the Brent and Forties benchmark grades and meets about half the country's gas needs. Offshore workforce numbers have recently recovered to well over 10,000, following a steep fall last year in response the pandemic, according to industry figures.
This page briefly describes some of the field applications of resin treatment for conformance improvement. Littlefield, Fader, and Surles reports on 26 production wells of the Kern River and San Ardo fields that were treated in 1990 and 1991 with furan resin jobs in which the treated production wells were suffering from water-encroachment problems. Most (24) of the wells were in the heavy oil Kern River field of the Lower San Joaquin Valley in California. When the furan resin treatments were applied, the Kern River field was undergoing steamflooding. Of the production wells treated, 79% showed significant reductions in water production after the treatments.