This year saw a lot of firsts, as new technologies were tested in the field.
Also, innovations in completions, directional drilling and deepwater technology enabled engineers to push the limits of what is possible.

The upstream world records that were broken during 2002 are listed below in their respective categories, although some categories overlap (e.g., horizontal completions). The editors and staff of Hart's E&P would like to congratulate all those who played a part in these record-breaking accomplishments.
To submit applications for next year's Drilling & Production Yearbook, fill out the form on page 87, include all the details, a picture and some form of documentation as proof of the new record, and mail to:

2004 Drilling & Production Yearbook
Hart's E&P
4545 Post Oak Place, Suite 210
Houston, Texas, USA 77027

Deadline is December 1, 2003.

BIT RECORDS

Third longest single run

Two Hughes Christensen MX-C1 milled tooth bits beat the 2002 record of 17,233 ft (5,256 m) for that size and style. Both runs were made at Maersk Oil's Al Shaheen field in Qatar during the spring of 2002. One drilled 21,554 ft (6,569 m) and the other drilled 22,024 ft (6,713 m), the latter taking the honors for the year as the third longest single run of all time.

All-time cumulative footage record broken twice by PDC bits

A 61/4-in. Halliburton Security DBS FM2543 PDC bit has been run 69 times on a mud motor with no repairs in Canada and has accumulated a total of 183,805 ft (56,021 m) at an average ROP of 291.8 ft/hr. This surpassed the previous all-time record for cumulative footage for any bit (180,417 ft) set by a 61/4-in. PDC bit built by Hughes Christensen.

Topping that record, the new all-time cumulative footage record was set by a 77/8-in. FM2555 PDC bit from Halliburton Security DBS in Colorado. That bit made 30 runs for a total of 203,716 ft (62,090 m) at an average ROP of 98.9 ft/hr.

DRILLING

New inductees to Five Mile Club
• Helmerich & Payne drilled a 28,901-ft (8,809-m) well in Mississippi Canyon Block 809 for Shell Offshore, completing well A-10 on July 16, 2002.
• Transocean Sedco Forex drilled a well in Green Canyon Block 640 for Chevron USA, reaching total depth (TD) of 28,411 ft (8,659 m) on April 4, 2002.
• Global Santa Fe drilled 28,043 ft (8,547 m) of hole in Walker Ridge Block 30 for Marathon Oil before drilling was suspended on Jan. 19, 2002.
• Global Marine reached TD of 27,929 ft (8,512 m) drilling for Dominion E&P in Mississippi Canyon Block 773 on June 4, 2002.
• Global Santa Fe drilled 27,337 ft (8,332 m) of hole for BHP in Green Canyon Block 610 before the well was suspended on Dec. 7, 2002.
• Noble Drilling reached TD at 26,532 ft (8,087 m) on Dec. 12, 2001 drilling for Marathon Oil in Garden Banks Block 515.

COMPLETIONS

Longest horizontal perforating job

A Baker Atlas crew, with the assistance of Baker Oil Tools staff, successfully ran a 7,367-ft (2,246-m) horizontal oriented perforating system to perforate a 4,888-ft (1,490-m) section using 41/2-in. deep penetrating Perform charges. The guns were tubing conveyed using 188 swivel gun connectors to orient gun sections and negotiate deviations in the well bore.

Charges were oriented in the direction of maximum formation stress to minimize
sand production. The gun design also allowed the operator to optimize production by effectively covering 6% more of the reservoir and decreasing the total area left unperforated across connections by more than 50%.

Largest perforation diameter, greatest flow area per linear foot

The Jet Research Center division of Halliburton Energy Services developed a perforating charge in its Big Hole Charge

line that set two industry records: largest entry hole diameter and flow per linear foot. One 56.5-g, steel-cased charge shot at 14 shots/ft in 95/8-in., 47-lb/ft L-80 casing resulted in an entry hole diameter of 1.29 in., the largest entry hole diameter registered with the American Petroleum Institute. The record for flow area per linear foot at 18.3 sq in. is 0.25 sq in. larger than the previous record. Using the larger hole diameter in sand control completions improves the placement of sand in the perforation tunnels and helps to reduce the pressure drop through each individual perforation tunnel for improved flow assurance and well integrity.

COILED TUBING

Longest, heaviest perforating gun on coiled tubing

Halliburton ran a record 2,885 gross ft (879 m) of perforating guns weighing 29,129 lb (13,211 kg) on coiled tubing from the Marine 305 jackup on the St. Joseph field offshore Malaysia. BJ Services provided the coiled tubing for the SJ-808A H4 well perforating job, which was performed for Sabah Shell Petroleum on May 19, 2002. Halliburton's

23/4-in. 6 shots/ft HMX DP VannGun (with roller) was used in the horizontal 6-in. hole to perforate 1,841 net ft (561 m) of sand over the entire interval. The previous record of 1,467 ft (447 m) was set by a 2-in. OD, 4 shots/ft Baker Atlas Predator string in March 1999.

Longest continuous length of CT

On May 26, 2000, Fiberspar completed the manufacture of a 21,500-ft (6,553-m) length of composite coiled tubing (CT) with six embedded copper conductors at its Wareham, Mass. facility. This was the longest continuous length of 2.875-in. diameter tubing in any material, the longest continuous length of carbon fiber-based tubing in any size and the first commercial production of SmartPipe. It weighs 70% less than an equivalent steel string, has a burst pressure of more than 16,000 psi, and has fatigue properties 100 times better than steel CT. The embedded conductors are used for data and power transmission to the bottomhole assembly.

HT/HP cement squeeze with CT

Halliburton performed a cement squeeze for McMoran Oil & Gas in the Gulf of Mexico that set a new world record for high temperature and high pressure. The well was located in 10 ft (3 m) of water just south of Marsh Island. Because water was being produced at 10,000 b/d from a poor cement primary job, a cement squeeze was performed at 18,600 ft (5,669 m) in an environment consisting of 15 ppm H2S, 5% CO2, 326?F (163?C), 12,000 psi pumping pressure and 9,000 psi choke back pressure.

FIRSTS & MILESTONES

Solid expandable tubing firsts

Enventure Global Technology installed the first slimwell system in the Chesapeake Wellman 3-H well in South Texas in June and July 2001. An expandable 51/2-in. by 75/8-in. openhole liner was installed inside a 6-in. by 75/8-in. previously expanded openhole liner system, resulting in a nested tubing that minimized the reduction of hole size at total depth.

Enventure also installed the world's first corrosion-resistant solid expandable tubing (SET) system in a producing well for NAM on Sept. 14, 2002. About 6,095 ft (1,858 m) of 6-in. corrosion-resistant alloy liner was placed in the Eemskanaal-2 well in the Groningen field in the Netherlands, setting a world record for the longest solid tubular expansion in a single run. Vallourec Mannesmann's proprietary gas-tight expandable connections were used.

The company's deepest SET installation was completed August 24, 2002, when Enventure successfully expanded 2,452 ft (748 m) of 95/8-in. by 113/4-in. openhole liner at a depth more than 26,450 ft (8,067 m) in a Conoco well in the deepwater Gulf of Mexico. The crew of the Transocean Deepwater Pathfinder set this record in 6,654-ft (2,029-m) waters in Walker Ridge Block 285.

The highest-angle SET installation occurred July 4, 2002, off the northwest coast of the island of Borneo for Brunei Shell Petroleum. A 1,043-ft (318-m)

51/2-in. cased-hole liner was expanded into 7-in. casing at the Iron Duke field, actually running "uphill" at an angle of 105 degrees. By perforating three oil-producing zones and leaving gas zones shut off behind the expandable liner by means of elastomer sealing joints, this SET system produced US $12 million in additional oil recovery, as this entire section had been plugged due to gas production.

First trilateral well from a semi

In June 2002, Halliburton successfully installed the world's first trilateral well (TAML Level 5) in the Troll Olje field in the North Sea. Two junctions were installed using the isolated tie-back system in less than 7 days. The third branch will allow an additional 1.5 million bbl of oil to be produced from the well, while keeping the junction pressure tight and preventing sand from entering the well.

First TAML Level 6 smart well

Schlumberger and CNOOC installed the first TAML Level 6 intelligent completion in the South Java Sea, Indonesia. The dual lateral was drilled and completed from the NE Intan A platform in 75-ft (23-m) waters using Schlumberger's RapidSeal multilateral system and its Reda electrical submersible pump to optimize oil flow, two downhole flow control valves to minimize water influx in either leg, real-time downhole temperature and pressure sensors and a multiphase flowmeter at the surface.

First slimhole rotary steerable wells

Schlumberger's 43/4-in. PowerDrive Xtra 475 rotary steerable system drilled 2,377 ft (725 m) of 6-in. hole in 43.5 hours for Shell Expro at the Brent Delta field in the North Sea. The Vision telemetry system and a special RS223 PDC bit enabled this complex well path to be drilled in a single run in April 2002. The first onshore application of this technology took place in June 2002 in the Safah field for Occidental Petroleum-Oman. The 61/8-in. lateral well was geosteered 4,712 ft (1,436 m), intersecting multiple targets. Use of conventional mud motors would have required sliding mode 30% of the time, slowing penetration rate.

First PIDX XML invoice transaction

Digital Oilfield Inc. of Alberta, Canada, successfully brokered the first PIDX XML (eXtensible Markup Language) invoice through its Internet-based OpenInvoice solution for field ticket reconciliation. Anadarko Canada received an electronic invoice from Lonkar Services Ltd., a wireline service company. XML is designed for seamless Web-based transactions among trading partners. PIDX (Petroleum Industry Data Exchange) is the electronic commerce committee of the American Petroleum Institute (API). "The creation and adoption of standards is a key component in the success of e-business. Previous efforts in this area, in particular EDI (Electronic Data Interchange), have met with limited success because there was still a great deal of customization required on both the buyer's and seller's side of a transaction," said Rod Munro, president and chief executive officer of Digital Oilfield. "With the PIDX XML standards, we now have a format that has been sanctioned by the API and that will greatly simplify this process for all participants in a transaction."

More first-time achievements

• Halliburton, first acoustic telemetry system, February 2002, Block K, Netherlands;
• Statoil, remotely operated subsea well, 2002, Rimfaks field, North Sea;
• Discoverer Enterprise, BP, constructed two wells at the same time, May 2002, Mississippi Canyon 778;
• Halliburton, PDO, 95/8-in. retrievable safety valve, June 2002, Yibal field, Oman; and
• Magnolia Global Energy, offshore 95/8-in. production pipe, August 2002, North Field, Arabian Gulf.

HORIZONTAL

Longest horizontal openhole completion, highest HD/TVD ratio from a semisubmersible rig
Weatherford International announced two records in extended-reach drilling set on ChevronTexaco's Captain field, Block 13/22a in the North Sea. The crew of the semisubmersible rig Sedco 704 drilled well 13/22a-B1Oy using Weatherford's roller-tool technology and torque and drag modeling. Weatherford LoDRAG centralizers, completion running string tools and LoTAD subs were applied to reduce friction and extend the reach of the high-angle well. With 2,800 ft (854 m) TVD and a horizontal section of more than 15,100 ft (4,606 m), the aspect ratio of the well was 5.4:1, the largest ever achieved for a subsea development using a semisubmersible rig. Weatherford also achieved a world record 15,100 ft (4,606 m) horizontal openhole completion using sand screen in this well - 4,000 ft (1,220 m) longer than prior completions in the area.

Deepest Level 3 multilateral installation

In January 2002, Baker Oil Tools achieved

the deepest installation of a TAML Level 3 multilateral, setting a Hook Hanger at
10,630 ft (3,240 m) at a 30-degree angle from Platform C of the Middle Ground Shoals field in 150-ft (46-m) waters in Cook Inlet, Alaska. Baker also installed a 5-in. slotted liner in Well 13A-23LN for operator XTO.

Most horizontal footage drilled in single well

On July 27, 2001, the crew of the Indrill No. 3 land rig drilled a record 115,363 ft (35,161 m) of horizontal laterals in a single well for CDX Gas. Well S-6Ar was drilled to drain methane from the Pocahontas No. 3 and No 4 coal seams in Wyoming Co., W.Va.

Most laterals in a single well

A total of 12 horizontal laterals were drilled, not including the main horizontal bore, in well S-3C for CDX Gas. The crew of the Indrill No. 3 rig drilled the dozen drain holes in the Pocahontas No. 3 coal seam in the Pennsylvania coal system of Wyoming Co., W. Va. in October 2000.

Most production screen in multilateral well

Halliburton Sperry-Sun installed 21,589 ft (6,580 m) of total production screen in a trilateral well for Norsk Hydro. The crew of the Polar Pioneer rig installed the isolated tie-back system in Well 31/2-X-13 in the Troll Olje field offshore Norway in June 2002.

Longest horizontal slotted casing

On April 15, 2002, the Phillips Hamaca heavy oil project in Venezuela broke the world record when a 7,313-ft (2,229-m) length of slotted casing liner was installed across a horizontal pay zone. The F4-F13 well reached a measured depth of 11,119 ft (3,389 m) and a true vertical depth of 2,551 ft (777 m). The previous record of 7,014 ft (2,138 m), also in Venezuela, had been set in February 1999.

MISCELLANEOUS

Heaviest turbine air lift

A steam turbine manufactured by Man Turbo and weighing 115 tonnes was air lifted by one of the world's largest freighter aircraft, the Antonov An-124 Ruslan, owned by the Russian company Volga-Dnepr Airlines. The freight measured 23.7 ft by 13.9 ft by 13.5 ft (7.22 m by 4.25 m by 4.12 m) and was carried from the Cologne-Bonn Airport to Jasionka Airport in Poland in less than 2 hours. Four weeks would have been needed to transport it by road, ship and train.

Deepest downhole data transmission

Precision Drilling's Empulse electromagnetic measurement-while-drilling (EM-MWD) system effectively transmitted data measured downhole at a measured depth of 14,500 ft (4,419 m) and true vertical depth of 6,400 ft (1,951 m) in the Southern North Sea for Shell in July 2002. Precision's Computalog Drilling Services team decoded quality survey, toolface, gamma ray and annulus pressure data while on bottom and during pipe connections while drilling a horizontal section below the Zechstein formation in the Leman field.

World's largest oil pipeline

Running 1,093 miles (1,760 km) from Azerbaijan to Turkey, the longest oil pipeline in the world is being constructed by BTC and is expected to cost US $2.9 billion when completed in 2005. It will carry 1 million b/d of crude from Sangachel on the Caspian coast through Georgia and to a new marine terminal at Ceyhan on the Mediterranean coast of Turkey. ABB won a $34 million contract to supply both process and safety controls in a single system for the project.

Deepest well shuttle operation

In April 2002, Reeves Oilfield Services achieved record well depth with its pioneering compact well shuttle technology offshore Cook Inlet, Alaska. Forest Oil's Redoubt No. 4 delineation well in the Shoal field reached 20,203 ft (6,158 m) measured depth, making it the deepest deviated well in the Cook Inlet. The well shuttle was used to convey Reeves Compact openhole logging tools to the bottom past bad hole conditions such as swelling clays. Maximum deviation in the well was 60 degrees, and the density caliper showed ledges and extensive washouts. The successful Well Shuttle operation lasted 19.5 hours, recording formation density, porosity, resistivity, hole size and gamma ray data. It was unlikely that wireline tools could have slid past the ledges, and wireline PCL could have taken 72 hours with a low probability of success. Reeves' compact well shuttle houses the battery-powered, wireline-style logging tools inside the drill pipe while tripping in, thus protecting the tools and allowing them to be conveyed at high speeds.

OFFSHORE

Deepest manifold installation

Petrobras set another world record in ultradeep waters, installing a subsea gas lift manifold at a depth of 6,184 ft (1,885 m) at the Roncador field in the Campos Basin.

This installation was unique because of its size and weight: 32.8 ft by 24.6 ft by 13.1 ft (10 m by 7.5 m by 4 m) and 191 tons (including installation equipment). This was also the first time the installation of such heavy equipment was carried out in waters deeper than 1 mile (5,280 ft or 1,609 m). Manufactured in Brazil by FMC-CBV, the manifold was installed using steel cables and support vessels. The manifold is scheduled to come onstream at the end of 2003 after connection to the FPSO Brasil.

Installation was carried out jointly by the semisubmersible Amethyst-1 (SS-47) and the anchor handling tug supply service vessel, Asso 23, along with the following supply boats:

• Salgueiro, responsible for sticking to the coordinates and azimuth of the installation;
• Toisa Marine, responsible for support services for the remotely operated vehicle; and
• Normand Atlantic, responsible for maintaining direction of descent of the manifold and avoiding the rotation of the cables.

The elaborate installation procedure positioned the manifold on the seafloor at a distance of only 7.5 ft (2.3 m) from the target location, saving about US $4 million compared to using the SS-51, the platform originally scheduled for manifold installation.

Deepest subsea tree, safety valve

Schlumberger broke its own world record for subsea completion tree systems with its SenTREE 7 subsea test tree set at a water depth of 7,200 ft (2,194 m). Installation was performed from a dynamically positioned vessel. The company's TRC-DH tubing retrievable safety valve broke another world record for deepwater safety valve installation at 9,828 ft (2,995 m). The records were set on the first of the six-well Canyon Express development project in the Gulf of Mexico.

Longest subsea tie-back

TotalFinaElf's Otter development in Block 2109/5a of the North Sea claimed the record for the longest subsea tie-back using electric submersible pumps. The tie-back distance is 13.4 miles (21.5 km) from a water depth of 596 ft (182 m).

Deepwater mooring depth

On March 6, 2002, the Deepwater Nautilus broke its own world water depth record for a moored vessel by successfully mooring on Shell's Great White prospect in 8,009 ft (2,441 m) of water in Alaminos Canyon Block 857. Its previous record was set in 7,790 ft (2,374 m) of water on Shell's Baha prospect in Alaminos Canyon Block 557 in June 2001. The Deepwater Nautilus used a pre-set mooring system that includes eight suction piles with polyester mooring lines, deployed in advance by an anchor-handling vessel. Shell has several pre-set mooring systems, which it rotates and deploys ahead of the Deepwater Nautilus .

Deepest water subsea completion, deepest water gas production, pipeline

Transocean's Discoverer Spirit completed a subsea well for Marathon at its Camden Hills development project in 7,209 ft (2,197 m) of water in Mississippi Canyon Block 328 in the Gulf of Mexico. WellDynamics direct hydraulics intelligent completion system was used in this 15,342-ft (4,676-m) long well. Each well was completed with two gravel-packed intervals and an intelligent well system so either interval can be produced independently or commingled to maximize production. Flowlines and control systems for the two subsea wells at Camden Hills are connected to the deepest gas pipeline in the world, Canyon Express. Two Sonsub Innovator ROVs helped with the record deepwater pipelay, working from the MSV Maxita. Production began on Oct. 11, 2002, and Camden Hills is now producing 100 MMcf/d of natural gas.

Deepest water drill stem test

Transocean's Deepwater Expedition set a record for the drill stem test

carried out in the deepest waters offshore Brazil for Petrobras. Well
1-RJS-544 measured 9,036 ft (2,754 m) from the rig floor to the seabed during this test.

Longest deepwater liner hanger

On June 30, 2002, Baker Oil Tools installed a liner hanger at a measured depth of 16,600 ft (5,059 m) for Marathon aboard the West Navion drillship in 5,504-ft (1,678-m) waters offshore Nova Scotia, Canada. A 95/8-in. by 117/8-in. ZXP liner top packer, Flex-Lock liner hanger and Hyflo Surge Valve system were used during the installation at the Annapolis field, then drilling proceeded to 19,320 ft (5,888 m).

Largest offshore oil rig being built

South Korea's Daewoo Shipbuilding and Marine Engineering Co. won a US $380 million contract to build the world's largest maritime oil rig, the semisubmersible for BP's Thunder Horse field in the deepwater Gulf of Mexico. When installed in 2005, it will weigh 55,000 tonnes and its deck will measure 344 ft by 404 ft (344 m by 123 m). Production facilities will be capable of handling 250,000 b/d of oil and 250 MMcf/d of gas.

Deepwater TLP record

Conoco and partner Ocean Energy are installing a tension leg platform in 4,700-ft (1,432-m) waters at the Magnolia field in Garden Bank Blocks 783 and 784 in the Gulf of Mexico. ABB Lummus Global was awarded the contract for design and construction of the hull, and Alliance Engineering won the contract for the topsides. First oil is expected in late 2004.

PRODUCTION

Highest flow rate in Azerbaijan

The Chirag-16ST well flowed 18,000 b/d of oil in March 2002, the highest confirmed flow rate of any Azeri well, onshore or off. The Chirag field is part of the Azeri-Chirag-Guneshli field complex operated by the Azerbaijan International Operating Co., made up of operator BP and partners ExxonMobil, Lukoil, Statoil, Unocal, Socar, TPAO, Itochu and Delta Hess. The well was drilled to 21,655 ft (6,600 m) measured depth by the crew of the semisubmersible rig Istiglaliyet.

Norwegian field oil record

Statoil's Norne field in the Norwegian Sea set a record of more than 236,000 b/d of oil from nine wells, two of which produce more than 50,000 b/d each. Hans Eidissen, vice president for Norne operations, said that on good days, the field produces 15,600 b/d more than the design capacity because several bottlenecks in the production facilities were removed, such as large pressure drops at valves.

Brazil oil production

Petrobras reported a 1-day production record of 1.622 million bbl on Feb. 6, 2003, topping the previous daily

record of 1.62 million bbl set on May 15, 2002. Monthly output rose to a record 48.236 million bbl in January 2003, mostly due to the FPSO Brazil coming online to replace the sunken P-36 platform at the Roncador field in the Campos Basin.

Mexico sets production record

On Sept. 10, 2002, Pemex set a new record of oil production of 3.4 million bbl, beating the previous record by 60,000 bbl. This was achieved despite a dispute over wages between the labor union officials and the national oil company board.

Venezuela produces record gas

The gas subsidiary of Venezuela's state oil company PDVSA produced a record amount of natural gas during a 24-hour period. On May 11 and 12, 2002, 1.7 Bcf/d of gas was produced, topping the previous record of 1.6 Bcf/d set in February 2002.

Record well in Bolivia

On Jan. 30, 2002, BG Group's Los Suris No. 5 well in southern Bolivia flowed at a rate of 58 Mcf of gas and 716.4 bbl of condensate thanks to a new completion technique used for the first time in that country. The well reached a total depth of 13,439 ft (4,096 m) using a 41/2-in. monobore completion.

Nigerian oil well gushes

ExxonMobil's discovery well in the deepwater Bolia field offshore Nigeria tested at 60,000 b/d in February 2002. The field is expected to come onstream in late 2004.

North West Shelf sets record

Woodside Petroleum's joint venture project on the North West Shelf of Australia set a new average daily production record of 533,000 boe in July 2002, beating the previous record of 531,000 boe recorded in December 2001. The North West Shelf supplies 70% of Western Australia's domestic gas demand and about 10% of Japan's LNG demand. Partners include BHP Billiton, Japan Australia LNG and local units of Shell, BP and ChevronTexaco.

Highest gas injection in Iran

The National Company for Southern Oil Producing Regions in Iran announced on June 15, 2002, that average daily gas injection for the fiscal year into southern oil fields rose to 2.6 Bcf, up from the previous year's record of 2.5 Bcf.

SEISMIC

First in-well fiber-optic seismic installation

Weatherford International completed the world's first installation of a multi-station, multi-component (3-C) fiber-optic in-well seismic imaging and monitoring array. The distributed array of accelerometers provides time-lapse seismic imaging. The optical seismic system was deployed in a well at the Izaute gas storage facility in southwestern France for TotalFinaElf. The design qualification and installation project, led by subsidiary Optoplan, was supported by the Norwegian Demo 2000 Program, TotalFinaElf, Statoil, Norsk Hydro and BP. The multi-station optical seismic system was tubing conveyed with the accelerometers coupled to the casing. Five 3-C seismic stations were used for a vertical seismic profile (VSP) survey, with repeat VSP surveys planned for time-lapse imaging. A sixth 3-C station, installed at the reservoir level, will be used for continuous recording of micro-seismic events. "The data from the tubing conveyed fiber-optic seismic sensor is easily comparable with the data recorded with conventional geophones," said Jacques Blanco, borehole seismic advisor from TotalFinaElf in Pau.

STIMULATION

Greatest offshore fracpack rate

Halliburton broke its own world record twice in 2002 for high-rate fracpacks in the deepwater Gulf of Mexico. The crew of the Stim Star III used VersaTrieve FracPac tool, the ShurShot fluid loss device and Wellstream's 5-in. diameter flexible hose for a sand control completion in the East Anstey portion of Shell's Na Kika field in 6,780-ft (2,066-m) waters. About 239,000 lb of proppant was placed at a rate of 50 bbl/min with an injection pressure of 7,000 psi, breaking the previous record of 45 bbl/min. Real-time diagnostics showed the need to double the fluid volume and increase proppant by 67% to stimulate the payzone properly, so changes were made on the fly, yet the fracturing job came in 13% below budget.
In November 2002, Halliburton broke the record again aboard the Stim Star III, this time for BP in the 3,133-ft (955-m) waters of Green Canyon Block 243. The lower zone of Aspen Well No. 2 received 560,000 lb of proppant at a rate of 60 bbl/min at a pressure of 11,060 psi.

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